PE ball valve with electric actuating mechanism

Abstract

The utility model discloses a PE (Poly Ethylene) ball valve with an electric actuating mechanism, which comprises a valve body, and is characterized by further comprising a connecting column, an electric actuating mechanism and an electric actuating mechanism, the valve rod is rotationally arranged in the connecting column; the shell is fixedly connected with the connecting column; the driving motor is fixedly arranged in the shell; the transmission column is fixedly and rotatably arranged in the shell; the transmission column drives the valve rod to rotate through the connecting assembly; the shell is mounted on the connecting column through the mounting assembly; and the driving motor drives the transmission column to rotate through the transmission assembly, and through the structural design, manual operation is changed into electric operation, so that the flow of the PE ball valve can be conveniently and accurately adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of PE ball valves, and in particular relates to a PE ball valve with an electric actuator. Background Art

[0002] Polyethylene (PE) ball valve is a spherical valve whose valve body and valve core are made of plastic materials such as polyethylene. They are usually light, corrosion-resistant, not easy to scale, and have good sealing properties. Due to its material characteristics, PE ball valves can be well used in gas systems.

[0003] However, the current PE ball valve is usually operated by the operator through physical rotation or push-pull to drive the valve stem to rotate and thus drive the valve to open and close, which cannot accurately control the gas flow and is difficult to achieve accurate flow regulation and control. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a PE ball valve with an electric actuator, comprising a valve body, characterized in that it also includes:

[0005] A connecting column, wherein the connecting column is fixedly arranged on the valve body;

[0006] A valve stem, the valve stem being rotatably disposed in the connecting column;

[0007] A housing, wherein the housing is fixedly connected to the connecting column;

[0008] A drive motor, wherein the drive motor is fixedly disposed in the housing;

[0009] A transmission column, the transmission column is fixedly rotatably arranged in the housing;

[0010] A connecting assembly, wherein the transmission column drives the valve stem to rotate through the connecting assembly;

[0011] An installation component, wherein the housing is installed on the connecting column through the installation component;

[0012] Transmission assembly, the driving motor drives the transmission column to rotate through the transmission assembly.

[0013] Furthermore, the connection component includes:

[0014] An insert block, the insert block is fixedly arranged at the lower end of the transmission column;

[0015] A slot, wherein the upper end surface of the valve stem is provided with a slot matching the plug;

[0016] Wherein, after the shell is fixedly connected to the connecting column, the insert block is located in the slot.

[0017] Furthermore, the installation component includes:

[0018] A mounting plate, the mounting plate is fixed at the lower end of the housing by screws,

[0019] A mounting groove, the mounting groove is provided in the housing;

[0020] Among them, a bolt is spirally arranged in the shell, the screw end of the bolt passes through the shell and the mounting plate and extends out of the lower end of the mounting plate, the screw end of the bolt is threadedly connected to the upper end surface of the connecting column, and the screw head of the bolt is located in the mounting groove.

[0021] Furthermore, the transmission assembly includes:

[0022] a first gear, the first gear being rotatably disposed in the housing;

[0023] a second gear, the second gear being rotatably disposed in the housing and meshing with the first gear;

[0024] A driving assembly, wherein the driving motor drives the first gear to rotate through the driving assembly;

[0025] The number of teeth of the second gear is greater than that of the first gear, the second gear is sleeved on a transmission column, and the transmission column and the second gear are connected via a key.

[0026] Furthermore, the driving component includes:

[0027] A set screw, wherein the set screw is spirally disposed on the outer surface of the shoulder of the first gear;

[0028] A positioning groove, wherein the positioning groove is provided on a driving shaft of the driving motor;

[0029] Wherein, the first gear sleeve is arranged on the driving shaft of the driving motor, and one end of the fixing screw is arranged to contact with the plane of the positioning groove of the driving motor.

[0030] Furthermore, it also includes a rotating assembly, and the rotating assembly includes:

[0031] A shaft sleeve, the shaft sleeve is fixedly connected to the housing by bolts, the shaft sleeve is hollow, and a through groove matching the outer circle of the shaft sleeve is formed in the housing;

[0032] A through hole, the through hole is opened through the mounting plate, the through hole is arranged corresponding to the hollow of the sleeve, and the diameter of the through hole is smaller than the inner diameter of the hollow of the sleeve;

[0033] Bearing, the bearing is divided into two parts, the upper and lower bearing sleeves are arranged on the transmission column, the hollow of the sleeve matches the outer ring of the bearing, and the transmission column is rotatably arranged in the inner ring of the sleeve and the through hole of the mounting plate through the bearing;

[0034] A spacer sleeve, the spacer sleeve is sleeved on the transmission column, the spacer sleeve is located between the upper and lower bearings, and the sleeve is respectively disposed in contact with the lower end and the upper end of the inner ring of the upper and lower bearings;

[0035] Among them, the transmission column has a shoulder, and a contact ring is fixedly arranged at the upper opening of the sleeve, the inner diameter of the contact ring is smaller than the inner diameter of the sleeve, the lower end of the lower bearing inner ring is set to contact with the shoulder of the transmission column, the lower end of the lower bearing outer ring is set to contact with the mounting plate, the upper end of the upper bearing outer ring is set to contact with the lower side surface of the contact ring, the lower end of the second gear also has a shoulder, and the lower end shoulder of the second gear is set to contact with the upper end of the upper bearing inner ring.

[0036] Furthermore, a pressing assembly is also included, and the pressing assembly includes:

[0037] A threaded column, wherein the threaded column is fixedly arranged on the upper end of the transmission column;

[0038] A nut, wherein the nut is spirally arranged on the threaded column;

[0039] Wherein, after the second gear is sleeved on the transmission column, the upper end surface of the transmission column is lower than the upper surface of the second gear.

[0040] Furthermore, the upper end of the shell is opened, and the second gear is provided with a plurality of waist-shaped grooves which are axially distributed and spaced apart, and the positions of the plurality of waist-shaped grooves respectively correspond to the positions of the bolts in the mounting groove and the bolts on the sleeve.

[0041] Furthermore, an observation component is also included, and the observation component includes:

[0042] A cover plate, the cover plate is arranged to cover the upper end opening of the shell, and the cover plate is fixedly connected to the shell by screws;

[0043] A mounting column, the mounting column is fixedly arranged on the upper end of the threaded column;

[0044] An observation sleeve, wherein the observation sleeve fixing sleeve is arranged on the mounting column;

[0045] An observation hole, which is formed through the cover plate and corresponds to the observation sleeve;

[0046] Wherein, the upper end surface of the observation sleeve is coated with an observation mark.

[0047] Furthermore, a protection component is also included, and the protection component includes:

[0048] A protective shell, wherein the protective shell is fixedly disposed on the housing, and the interior of the protective shell is connected to the housing;

[0049] Heat dissipation holes, which are formed through the protective shell;

[0050] A wire threading groove, which is opened through the lower end of the protective shell;

[0051] A fixing plate, the driving motor is fixed on the fixing plate by screws, and the output shaft of the driving motor protrudes from the upper end of the fixing plate;

[0052] The driving motor is located in the protective shell, the size of the fixing plate is larger than the size of the through opening between the protective shell and the shell, and the fixing plate is fixed in the shell by screws.

[0053] The beneficial effects of the utility model are:

[0054] 1. By changing from manual to electric, it is convenient to accurately adjust the flow of the PE ball valve.

[0055] 2. The arrangement of the plug block and the slot makes it easy for the transmission rod to drive the valve stem to rotate through the cooperation between the plug block and the slot when the transmission rod rotates.

[0056] 3. The setting of the transmission assembly makes it convenient for the driving motor to rotate the transmission column through the meshing of the first gear and the second gear. The setting of the first-stage gear reduction mechanism can suppress the reduction ratio to a smaller and smaller size, making it convenient to open and close the valve stem through a low-torque driving motor.

[0057] 4. The setting of the driving component makes it convenient to drive the first gear to rotate through the cooperation of the set screw and the positioning groove when the driving motor is started, and one end of the set screw is located in the positioning groove of the driving shaft, so that the rotation speed between the first gear and the driving shaft can be synchronized, avoiding slippage between the first gear and the driving shaft.

[0058] 5. The arrangement of bearings and other components facilitates the rotation of the second gear and the transmission column, making the rotation smoother. The arrangement of the spacer avoids direct contact or friction between the two bearings, thereby extending the service life of the two bearings. The arrangement of the through holes on the abutment ring and the mounting plate facilitates the positioning of the two bearings inside the bushing by abutting against the outer rings of the bearings, thereby stabilizing the position of the bearings. The arrangement of the detachable connection between the mounting plate and the sleeve and the housing facilitates the inspection and replacement of components. At the same time, the threaded hole of the sleeve is a countersunk hole, so that when the sleeve is fixedly connected to the housing, the screw head end of the fixing bolt will be located in the countersunk hole, thereby preventing the screw head of the bolt from interfering with the rotation of the second gear due to protrusion.

[0059] 6. The setting of the threaded column and the nut facilitates the pressing of the second gear and the positioning of the transmission column through the cooperation of the threaded column and the nut, so that the operation is stable.

[0060] 7. The setting of the waist-shaped groove allows bolts to pass through the waist-shaped groove after the shell and the connecting column are plugged in, so that the shell and the connecting column are fixed from the inside of the shell. If the waist-shaped groove is not set, the internal components of the shell will need to be removed again during installation due to the obstruction of the second gear, and then the shell and the connecting column will be fixed and then installed. The setting of the waist-shaped groove makes the installation convenient and quick, so that the shell and the connecting column can be directly connected by bolts passing through the waist-shaped groove.

[0061] 8. The setting of the cover plate protects the internal components of the shell. The setting of the observation sleeve, observation hole and mounting column makes it convenient to observe the observation mark on the observation sleeve through the observation hole when the transmission column rotates, thereby playing a role in judging the opening and closing status of the valve body.

[0062] 9. The setting of the protective shell facilitates the protection of the drive motor after the drive motor is installed. The setting of the heat dissipation holes facilitates the heat dissipation of the drive motor. The setting of the wire groove facilitates the electrical connection of the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Attached Figure 1 It is a structural diagram of the utility model;

[0064] Attached Figure 2 It is a left view when the shell and the connecting column are separated;

[0065] Attached Figure 3 This is a structural diagram of the utility model without the driving structure;

[0066] Attached Figure 4 This is a structural diagram of the interior of the shell;

[0067] Attached Figure 5 is a cross-sectional structural diagram of the shell;

[0068] Attached Figure 6 For attachment Figure 5 A is an enlarged schematic diagram;

[0069] Attached Figure 7 For attachment Figure 5 Schematic diagram of the explosion of A in the middle;

[0070] Attached Figure 8 For attachment Figure 7 A partial enlarged view of

[0071] Attached Fig. 9 is a cross-sectional view of the shell;

[0072] Attached Fig.10 This is a top view of the housing after the cover plate is removed;

[0073] Explanation of the reference numerals: 1. connecting column, 2. valve stem, 3. housing, 4. driving motor, 5. transmission column, 6. plug-in block, 7. slot, 8. mounting plate, 9. mounting groove, 10. first gear, 11. second gear, 12. set screw, 13. positioning groove, 14. bushing, 15. through hole, 16. bearing, 17. spacer, 18. interference ring, 19. threaded column, 20. nut, 21. waist groove, 22. cover plate, 23. mounting column, 24. observation sleeve, 25. observation hole, 26. protective shell, 27. heat dissipation hole, 28. threading groove, 29. fixing plate. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present application. In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values, and it should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0075] Embodiment 1:

[0076] This embodiment provides a PE ball valve with an electric actuator, including a valve body, characterized in that it also includes:

[0077] A connecting column 1, wherein the connecting column 1 is fixedly arranged on the valve body;

[0078] A valve stem 2, wherein the valve stem 2 is rotatably disposed in the connecting column 1;

[0079] A housing 3, wherein the housing 3 is fixedly connected to the connecting column 1;

[0080] A drive motor 4, wherein the drive motor 4 is fixedly disposed in the housing 3;

[0081] A transmission column 5, wherein the transmission column 5 is fixedly rotatably disposed in the housing 3;

[0082] Connecting assembly, the transmission column 5 drives the valve stem 2 to rotate through the connecting assembly;

[0083] An installation component, wherein the housing 3 is installed on the connecting column 1 through the installation component;

[0084] Transmission assembly, the driving motor 4 drives the transmission column 5 to rotate through the transmission assembly.

[0085] In the present technical solution, when the flow of the PE ball valve needs to be adjusted, the parameters are input into the external controller to start the drive motor 4. The drive motor 4 drives the valve stem 2 to rotate through the transmission assembly, thereby driving the opening and closing parts in the valve body to rotate, thereby adjusting the flow rate through the valve body through the opening and closing parts in the valve body.

[0086] Through this structural design, by changing the manual control to the electric control, the flow rate of the PE ball valve can be precisely adjusted.

[0087] Embodiment 2:

[0088] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0089] Furthermore, the connection component includes:

[0090] An insert block 6, wherein the insert block 6 is fixedly arranged at the lower end of the transmission column 5;

[0091] A slot 7, the upper end surface of the valve stem 2 is provided with a slot 7 matching the insert block 6;

[0092] After the housing 3 is fixedly connected to the connecting column 1 , the insert block 6 is located in the slot 7 .

[0093] In the present technical solution, when the transmission column 5 rotates, it will drive the plug block 6 to rotate. After the shell 3 is fixedly connected to the connecting column 1, the plug block 6 of the transmission column 5 will be located in the slot 7 of the valve stem 2, so that the driving motor 4 is started. When the transmission component drives the transmission column 5 to rotate, the transmission column 5 can drive the valve stem 2 to rotate through the cooperation of the plug block 6 and the slot 7, thereby achieving the effect of opening and closing the valve body.

[0094] Through this structural design, the arrangement of the insert block 6 and the slot 7 makes it easy for the transmission rod to drive the valve stem 2 to rotate through the cooperation between the insert block 6 and the slot 7 when the transmission rod rotates.

[0095] Embodiment 3:

[0096] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0097] Furthermore, the installation component includes:

[0098] The mounting plate 8 is fixed at the lower end of the housing 3 by screws.

[0099] A mounting groove 9, wherein the mounting groove 9 is provided in the housing 3;

[0100] Among them, a bolt is spirally arranged in the shell 3, and the screw end of the bolt passes through the shell 3 and the mounting plate 8 and extends out of the lower end of the mounting plate 8. The screw end of the bolt is threadedly connected to the upper end surface of the connecting column 1, and the screw head of the bolt is located in the mounting groove 9.

[0101] In the present technical solution, the mounting plate 8 is fixedly set at the lower end of the shell 3 by screws in advance. When the shell 3 needs to be fixedly connected to the connecting column 1, the bolt is screwed into the mounting groove 9 of the shell 3, so that the screw end of the bolt passes through the shell 3 and the mounting plate 8 and extends out of the lower end of the shell 3 and is screwed into the connecting column 1. The shell 3 and the connecting column 1 can be fixedly connected by bolts. After the shell 3 and the connecting column 1 are fixedly connected, the screw head of the bolt is located in the mounting groove 9. The sunken setting of the mounting groove 9 avoids interference between the screw head of the bolt and other components in the shell 3.

[0102] This structural design facilitates the fixed connection between the shell 3 and the connecting column 1 by bolts. At the same time, the setting of the mounting groove 9 ensures that after the shell 3 and the connecting column 1 are fixed by bolts, the bolt head will be located in the mounting groove 9, thereby preventing the bolt head from interfering with other components in the shell 3 due to excessive protrusion.

[0103] Embodiment 4:

[0104] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0105] Furthermore, the transmission assembly includes:

[0106] A first gear 10, wherein the first gear 10 is rotatably disposed in the housing 3;

[0107] A second gear 11, which is rotatably disposed in the housing 3 and meshes with the first gear 10;

[0108] A driving assembly, wherein the driving motor 4 drives the first gear 10 to rotate through the driving assembly;

[0109] The number of teeth of the second gear 11 is greater than that of the first gear 10 , and the second gear 11 is sleeved on the transmission column 5 , and the transmission column 5 and the second gear 11 are connected via a key.

[0110] In the present technical solution, a transmission assembly is provided, so that after the driving motor 4 is started, the driving motor 4 drives the first gear 10 to rotate through the driving assembly. Since the second gear 11 is meshed with the first gear 10, and the second gear 11 is sleeved on the transmission column 5, the transmission column 5 and the second gear 11 are connected by a key, so that after the driving motor 4 drives the first gear 10 to rotate, it is convenient to drive the second gear 11 to rotate through gear meshing, so that the second gear 11 drives the transmission column 5 to rotate through the key connection, so that the transmission column 5 drives the valve stem 2 to rotate through the cooperation of the plug block 6 and the slot 7, so as to open and close the valve body;

[0111] Since the second gear 11 is meshed with the first gear 10, it means that the module of the second gear 11 is equal to that of the first gear 10, and since the number of teeth of the second gear 11 is greater than that of the first gear 10, the second gear 11 is meshed with the first gear 10 to form a first-stage gear reduction mechanism. Compared with multi-stage gear reduction mechanisms above the second-stage gear reduction mechanism, the reduction ratio can be suppressed to a smaller and miniaturized level, making it convenient to open and close the valve stem 2 by a low-torque drive motor 4.

[0112] Through this structural design, it is convenient for the driving motor 4 to rotate the transmission column 5 through the meshing of the first gear 10 and the second gear 11. The setting of the first-stage gear reduction mechanism can suppress the reduction ratio to a smaller and smaller size, making it convenient to open and close the valve stem 2 through the low-torque driving motor 4.

[0113] Embodiment 5:

[0114] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0115] Furthermore, the driving component includes:

[0116] A set screw 12, wherein the set screw 12 is spirally arranged on the outer surface of the shaft shoulder of the first gear 10;

[0117] A positioning groove 13, wherein the positioning groove 13 is provided on the driving shaft of the driving motor 4;

[0118] The first gear 10 is sleeved on the driving shaft of the driving motor 4 , and one end of the set screw 12 is disposed in plane contact with the positioning slot 13 of the driving motor 4 .

[0119] In the present technical solution, since a set screw 12 is provided, and one end of the set screw 12 is arranged to abut against the plane of the positioning groove 13 of the drive motor 4, when the drive motor 4 rotates, the output shaft of the drive motor 4 is driven to rotate, thereby driving the first gear 10 to rotate through the cooperation between the set screw 12 and the positioning groove 13 of the drive shaft.

[0120] Through this structural design, when the drive motor 4 is started, the first gear 10 is driven to rotate through the cooperation of the set screw 12 and the positioning groove 13, and one end of the set screw 12 is located in the positioning groove 13 of the drive shaft, so that the rotation speed between the first gear 10 and the drive shaft can be synchronized, avoiding slippage between the first gear 10 and the drive shaft of the drive motor.

[0121] Embodiment 6:

[0122] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0123] Furthermore, it also includes a rotating assembly, and the rotating assembly includes:

[0124] A shaft sleeve 14, wherein the shaft sleeve 14 is fixedly connected to the housing 3 by bolts, the shaft sleeve 14 is hollow, and a through groove matching the outer circumference of the shaft sleeve 14 is formed in the housing 3;

[0125] A through hole 15, wherein the through hole 15 is formed through the mounting plate 8, the through hole 15 is arranged corresponding to the hollow of the shaft sleeve 14, and the diameter of the through hole 15 is smaller than the inner diameter of the hollow of the shaft sleeve 14;

[0126] The bearing 16 is divided into two parts, the upper and lower bearings 16 are sleeved on the transmission column 5, the hollow of the sleeve 14 matches the outer ring of the bearing 16, and the transmission column 5 is rotatably arranged in the inner ring of the sleeve 14 and the through hole 15 of the mounting plate 8 through the bearing 16;

[0127] A spacer sleeve 17, the spacer sleeve 17 is sleeved on the transmission column 5, the spacer sleeve 17 is located between the upper and lower bearings 16, and the shaft sleeve 14 is respectively disposed in contact with the lower end and the upper end of the inner ring of the upper and lower bearings 16;

[0128] Among them, the transmission column 5 has a shoulder, and a contact ring 18 is fixedly arranged at the upper opening of the sleeve 14, and the inner diameter of the contact ring 18 is smaller than the inner diameter of the sleeve 14. The lower end of the inner ring of the bearing 16 below is in contact with the shoulder of the transmission column 5, the lower end of the outer ring of the bearing 16 below is in contact with the mounting plate 8, and the upper end of the outer ring of the bearing 16 above is in contact with the lower side surface of the contact ring 18. The lower end of the second gear 11 also has a shoulder, and the lower end shoulder of the second gear 11 is in contact with the upper end of the inner ring of the bearing 16 above.

[0129] In the present technical solution, since the shaft sleeve 14 is provided, and the bearing 16, the spacer sleeve 17 and other components are provided in the shaft sleeve 14, and since the lower end of the inner ring of the bearing 16 below is set in abutment with the shoulder of the transmission column 5, the lower end of the outer ring of the bearing 16 below is set in abutment with the mounting plate 8, and the upper end of the outer ring of the bearing 16 above is set in abutment with the lower side surface of the abutment ring 18, the lower end of the second gear 11 also has a shoulder, and the lower end shoulder of the second gear 11 is set in abutment with the upper end of the inner ring of the bearing 16 above, the setting of the bearing 16 makes the rotation of the transmission column 5 smoother and facilitates the rotation of the second gear 11;

[0130] Since the spacer 17 is provided, the two bearings 16 are conveniently separated to prevent them from direct contact or friction, thereby avoiding damage and wear caused thereby, and can reduce friction and wear between the bearings 16, thereby achieving the effect of noise reduction and shock absorption, and extending the service life of the two bearings 16;

[0131] The through hole 15 on the abutment ring 18 and the mounting plate 8 is provided to facilitate positioning the bearing 16 inside the bushing by abutting against the outer ring of the bearing 16, so that the position of the bearing 16 is stable;

[0132] The mounting plate 8 is detachably connected to the housing 3 by screws, so that it is convenient to remove the mounting plate 8 for maintenance from below the shaft sleeve 14;

[0133] The shaft sleeve 14 and the housing 3 are detachably connected by bolts, which makes it convenient to disassemble the shaft sleeve 14 as a whole for inspection and maintenance. At the same time, the threaded hole of the shaft sleeve 14 is a countersunk hole, so that when the shaft sleeve 14 is fixedly connected to the housing 3, the screw head end of the bolt used for fixing will be located in the countersunk hole, avoiding interference with the rotation of the second gear 11.

[0134] Through this structural design, the arrangement of components such as the bearing 16 facilitates the rotation of the second gear 11 and the transmission column 5, making the rotation smoother. The arrangement of the spacer 17 avoids direct contact or friction between the two bearings 16, thereby extending the service life of the two bearings 16. The arrangement of the through hole 15 on the abutment ring 18 and the mounting plate 8 facilitates the positioning of the two bearings 16 inside the bushing by abutting against the outer rings of the bearings 16, thereby stabilizing the position of the bearings 16. The arrangement of the detachable connection between the mounting plate 8 and the sleeve 14 and the housing 3 facilitates the inspection and replacement of components. At the same time, the threaded hole of the sleeve 14 is a countersunk hole, so that when the sleeve 14 is fixedly connected to the housing 3, the screw head end of the bolt used for fixing will be located in the countersunk hole, thereby preventing the screw head of the bolt from interfering with the rotation of the second gear 11 due to protrusion.

[0135] Embodiment 7:

[0136] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0137] Furthermore, a pressing assembly is also included, and the pressing assembly includes:

[0138] A threaded column 19, wherein the threaded column 19 is fixedly disposed on the upper end of the transmission column 5;

[0139] A nut 20, wherein the nut 20 is spirally disposed on the threaded column 19;

[0140] After the second gear 11 is sleeved on the transmission column 5 , the upper end surface of the transmission column 5 is lower than the upper surface of the second gear 11 .

[0141] In the present technical solution, after the second gear 11 is installed with the transmission column 5, the nut 20 can be screwed in. The nut 20 is moved downward on the threaded column 19 through threaded transmission until it contacts the upper end of the second gear 11. Then, the nut 20 is tightened to tighten the second gear 11, so that the lower end of the second gear 11 contacts the inner ring of the upper bearing 16, and the upper end of the second bearing 16 contacts the threaded column 19, thereby fixing the position of the second gear 11 and making the operation more stable.

[0142] At the same time, an upward tightening force can be exerted on the transmission column 5, so that the shaft shoulder of the transmission column 5 can be tightened upward until it contacts the inner ring of the bearing 16 below, and the lower end of the second gear 11 fixed on the transmission column 5 contacts the inner ring of the bearing 16 above. Since the bearing 16 is positioned inside the sleeve 14 due to the rotating assembly, the position of the transmission column 5 is also positioned to prevent the transmission column 5 from sliding up and down.

[0143] Through this structural design, the arrangement of the threaded column 19 and the nut 20 facilitates the pressing of the second gear 11 and the positioning of the transmission column 5 through the cooperation of the threaded column 19 and the nut 20, so that the operation is stable.

[0144] Embodiment 8:

[0145] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0146] Furthermore, the upper end of the housing 3 is opened, and the second gear 11 is provided with a plurality of axially distributed and spaced waist-shaped grooves 21 , and the positions of the plurality of waist-shaped grooves 21 correspond to the positions of the bolts in the mounting groove 9 and the bolts on the sleeve 14 , respectively.

[0147] In the present technical solution, by providing the waist-shaped groove 21 and the upper end of the housing 3 being open, when the housing 3 and the connecting column 1 need to be installed, the housing 3 is moved toward the connecting column 1, driving the transmission column 5 to move so that the insert block 6 of the transmission column 5 moves toward the slot 7 of the valve stem 2;

[0148] After the insert block 6 of the transmission column 5 enters the slot 7 of the valve stem 2, it means that the docking of the housing 3 and the connecting column 1 has been completed. At this time, the bolt can be passed through the waist groove 21 and screwed into the mounting groove 9 of the housing 3, and then the screw end of the bolt can be passed through the housing 3 and the mounting plate 8 to be threadedly connected with the upper end of the connecting column 1, and then the bolt can be tightened to fix the housing 3 and the connecting column 1;

[0149] At the same time, since the position of the waist groove 21 also corresponds to the position of the bolt on the sleeve 14, after the housing 3 is installed on the connecting column 1, if it is necessary to inspect the components in the sleeve 14, the bolt on the sleeve 14 can be screwed out by a wrench through the waist groove 21 to remove the sleeve 14, so as to inspect the components in the sleeve 14, avoiding the need to remove the housing 3 from the connecting column 1 before inspection, making inspection and installation more convenient;

[0150] Furthermore, the entire housing 3 can be shortened in the longitudinal direction, which contributes to miniaturization of the housing 3 .

[0151] Through the structural design, the setting of the waist-shaped groove 21 allows the shell 3 and the connecting column 1 to be plugged in, and then the bolts can be passed through the waist-shaped groove 21, so that the shell 3 and the connecting column 1 can be fixed from the inside of the shell 3. If the waist-shaped groove 21 is not set, it will be necessary to remove the internal components of the shell 3 again during installation due to the obstruction of the second gear 11, and then fix the shell 3 and the connecting column 1 before installing. The setting of the waist-shaped groove 21 makes the installation convenient and quick, so that the shell 3 and the connecting column 1 are directly connected by bolts passing through the waist-shaped groove 21.

[0152] Embodiment 9:

[0153] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0154] Furthermore, an observation component is also included, and the observation component includes:

[0155] A cover plate 22, the cover plate 22 is arranged to cover the upper end opening of the housing 3, and the cover plate 22 is fixedly connected to the housing 3 by screws;

[0156] A mounting post 23, wherein the mounting post 23 is fixedly disposed on the upper end of the threaded post 19;

[0157] An observation sleeve 24, wherein the observation sleeve 24 is fixedly mounted on the mounting column 23;

[0158] An observation hole 25, which is formed through the cover plate 22, and the position of the observation hole 25 corresponds to the observation sleeve 24;

[0159] The upper end surface of the observation sleeve 24 is coated with an observation mark (not shown in the figure).

[0160] In the present technical solution, by providing a cover plate 22, it is convenient to cover the upper opening of the shell 3 through the cover plate 22 to prevent dust and debris from falling into the shell 3, and also play a protective role, thereby extending the service life of the internal components of the shell 3.

[0161] Since the observation sleeve 24 is fixedly mounted on the mounting column 23, the mounting column 23 is fixedly mounted on the upper end of the threaded column 19, and the upper end surface of the observation sleeve 24 is coated with an observation mark, when the transmission column 5 rotates, the mounting column 23 will be driven to rotate, and the mounting column 23 will drive the observation sleeve 24 to rotate, thereby driving the observation mark to rotate, making it convenient to observe the observation mark on the observation sleeve 24 through the observation hole 25, thereby playing a role in judging the opening and closing state of the valve body.

[0162] Through this structural design, the setting of the cover plate 22 protects the internal components of the shell 3. The setting of the observation sleeve 24, the observation hole 25 and the mounting column 23 makes it convenient to observe the observation mark on the observation sleeve 24 through the observation hole 25 when the transmission column 5 rotates, thereby playing a role in judging the opening and closing state of the valve body.

[0163] Embodiment 10:

[0164] This embodiment provides a PE ball valve with an electric actuator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0165] Furthermore, a protection component is also included, and the protection component includes:

[0166] A protective shell 26, wherein the protective shell 26 is fixedly disposed on the housing 3, and the interior of the protective shell 26 is connected to the housing 3;

[0167] A heat dissipation hole 27, wherein the heat dissipation hole 27 is formed through the protective shell 26;

[0168] A wire threading groove 28, which is formed through the lower end of the protective shell 26;

[0169] A fixing plate 29, on which the drive motor 4 is fixed by screws, and an output shaft of the drive motor 4 protrudes from an upper end of the fixing plate 29;

[0170] The driving motor 4 is located in the protective shell 26 , the fixing plate 29 is larger than the through opening between the protective shell 26 and the housing 3 , and the fixing plate 29 is fixed in the housing 3 by screws.

[0171] In the present technical solution, when the drive motor 4 is installed, the drive motor 4 is first fixed on the fixing plate 29, and then the drive motor 4 is placed toward the inside of the protective shell 26 through the shell 3. The setting of the protective shell 26 protects the drive motor 4 and avoids collision that may cause damage to the drive motor 4. After the drive motor 4 enters the protective shell 26, since the size of the fixing plate 29 is larger than the size of the through opening between the protective shell 26 and the shell 3, the fixing plate 29 will be placed on the through opening between the shell 3 and the protective shell 26 without entering the protective shell 26. Then, the fixing plate 29 and the shell 3 are fixed by screws, and the drive motor 4 can be installed.

[0172] The arrangement of the heat dissipation holes 27 has a heat dissipation effect.

[0173] The provision of the wire threading groove 28 facilitates the wires to pass through the wire threading groove 28 to connect the drive motor 4 with an external controller, thereby facilitating the control of the drive motor 4 .

[0174] Through this structural design, the protection shell 26 is provided to protect the drive motor 4 after the drive motor 4 is installed, the heat dissipation holes 27 are provided to dissipate heat for the drive motor 4, and the wire grooves 28 are provided to facilitate electrical connection of the drive motor 4.

[0175] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the specification of the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A PE ball valve with an electric actuator, comprising a valve body, characterized in that: Also includes: A connecting column (1), wherein the connecting column (1) is fixedly arranged on the valve body; A valve stem (2), the valve stem (2) being rotatably disposed in the connecting column (1); A housing (3), wherein the housing (3) is fixedly connected to the connecting column (1); A drive motor (4), wherein the drive motor (4) is fixedly arranged in the housing (3); A transmission column (5), wherein the transmission column (5) is fixedly rotatably arranged in the housing (3); A connecting assembly, wherein the driving column (5) drives the valve stem (2) to rotate through the connecting assembly; An installation component, wherein the housing (3) is installed on the connecting column (1); The driving motor (4) drives the driving column (5) to rotate via the driving assembly.

2. A PE ball valve with an electric actuator according to claim 1, characterized in that: The connection component comprises: An insert block (6), wherein the insert block (6) is fixedly arranged at the lower end of the transmission column (5); A slot (7), wherein the upper end surface of the valve stem (2) is provided with a slot (7) matching with the insert block (6); After the housing (3) and the connecting column (1) are fixedly connected, the insert block (6) is located in the slot (7).

3. A PE ball valve with an electric actuator according to claim 2, characterized in that: The installation assembly includes: A mounting plate (8), wherein the mounting plate (8) is fixed to the lower end of the housing (3) by means of screws, A mounting groove (9), wherein the mounting groove (9) is provided in the housing (3); A bolt is spirally arranged inside the shell (3), the screw end of the bolt passes through the shell (3) and the mounting plate (8) and extends out of the lower end of the mounting plate (8), the screw end of the bolt is threadedly connected to the upper end surface of the connecting column (1), and the screw head of the bolt is located in the mounting groove (9).

4. A PE ball valve with an electric actuator according to claim 1 or 3, characterized in that: The transmission assembly comprises: A first gear (10), the first gear (10) being rotatably disposed in the housing (3); a second gear (11), the second gear (11) being rotatably disposed in the housing (3) and meshing with the first gear (10); A driving assembly, wherein the driving motor (4) drives the first gear (10) to rotate via the driving assembly; The number of teeth of the second gear (11) is greater than the number of teeth of the first gear (10); the second gear (11) is sleeved on the transmission column (5); and the transmission column (5) and the second gear (11) are connected via a key.

5. A PE ball valve with an electric actuator according to claim 4, characterized in that: The driving component comprises: A set screw (12), wherein the set screw (12) is spirally arranged on the outer surface of the shaft shoulder of the first gear (10); A positioning groove (13), wherein the positioning groove (13) is formed on a driving shaft of a driving motor (4); The first gear (10) is sleeved on the driving shaft of the driving motor (4), and one end of the set screw (12) is arranged in plane contact with the positioning groove (13) of the driving motor (4).

6. A PE ball valve with an electric actuator according to claim 5, characterized in that: Also included is a rotating assembly, the rotating assembly comprising: A shaft sleeve (14), the shaft sleeve (14) being fixedly connected to the housing (3) by means of bolts, the shaft sleeve (14) being hollow, and a through groove matching the outer circle of the shaft sleeve (14) being provided through the housing (3); A through hole (15), the through hole (15) is formed through the mounting plate (8), the through hole (15) is arranged corresponding to the hollow of the shaft sleeve (14), and the diameter of the through hole (15) is smaller than the inner diameter of the hollow of the shaft sleeve (14); A bearing (16), wherein the bearing (16) is divided into two upper and lower bearings, the upper and lower bearings (16) are sleeved on the transmission column (5), the hollow of the shaft sleeve (14) matches the outer ring of the bearing (16), and the transmission column (5) is rotatably arranged in the inner ring of the shaft sleeve (14) and the through hole (15) of the mounting plate (8) through the bearing (16); A spacer sleeve (17), the spacer sleeve (17) is sleeved on the transmission column (5), the spacer sleeve (17) is located between the upper and lower bearings (16), and the shaft sleeve (14) is respectively disposed in contact with the lower ends and upper ends of the inner rings of the upper and lower bearings (16); The transmission column (5) has a shoulder, a contact ring (18) is fixedly arranged at the upper opening of the sleeve (14), the inner diameter of the contact ring (18) is smaller than the inner diameter of the sleeve (14), the lower end of the inner ring of the bearing (16) below is in contact with the shoulder of the transmission column (5), the lower end of the outer ring of the bearing (16) below is in contact with the mounting plate (8), the upper end of the outer ring of the bearing (16) above is in contact with the lower side surface of the contact ring (18), the lower end of the second gear (11) also has a shoulder, and the lower end shoulder of the second gear (11) is in contact with the upper end of the inner ring of the bearing (16) above.

7. A PE ball valve with an electric actuator according to claim 6, characterized in that: Also included is a clamping assembly, the clamping assembly comprising: A threaded column (19), wherein the threaded column (19) is fixedly arranged on the upper end of the transmission column (5); A nut (20), wherein the nut (20) is spirally arranged on the threaded column (19); Wherein, after the second gear (11) is sleeved on the transmission column (5), the upper end surface of the transmission column (5) is lower than the upper surface of the second gear (11).

8. The PE ball valve with electric actuator according to claim 7, characterized in that: The upper end of the housing (3) is open, and the second gear (11) is provided with a plurality of waist-shaped grooves (21) which are axially distributed and spaced apart, and the positions of the plurality of waist-shaped grooves (21) respectively correspond to the positions of the bolts in the mounting groove (9) and the bolts on the shaft sleeve (14).

9. A PE ball valve with an electric actuator according to claim 8, characterized in that: Also included is an observation component, the observation component comprising: A cover plate (22), the cover plate (22) is arranged to cover the upper end opening of the shell (3), and the cover plate (22) and the shell (3) are fixedly connected by screws; A mounting post (23), wherein the mounting post (23) is fixedly arranged on the upper end of the threaded post (19); An observation sleeve (24), wherein the observation sleeve (24) is fixedly mounted on the mounting column (23); An observation hole (25), the observation hole (25) is formed through the cover plate (22), and the position of the observation hole (25) corresponds to the observation sleeve (24); Wherein, the upper end surface of the observation sleeve (24) is coated with an observation mark.

10. A PE ball valve with an electric actuator according to claim 4, characterized in that: Also included is a protection component, the protection component comprising: A protective shell (26), wherein the protective shell (26) is fixedly arranged on the housing (3), and the interior of the protective shell (26) is connected to the housing (3); A heat dissipation hole (27), wherein the heat dissipation hole (27) is formed through the protective shell (26); A wire threading groove (28), the wire threading groove (28) is through-opened at the lower end of the protective shell (26); A fixing plate (29), the driving motor (4) being fixed on the fixing plate (29) by means of screws, and the output shaft of the driving motor (4) being protruding from the upper end of the fixing plate (29); The drive motor (4) is located in the protective shell (26), the size of the fixing plate (29) is larger than the size of the through opening between the protective shell (26) and the shell (3), and the fixing plate (29) is fixed in the shell (3) by screws.

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