Manual valve actuator with valve port flushing function

Abstract

The invention relates to a valve actuator, in particular to a manual valve actuator with a valve port flushing function, according to the scheme, a flushing mechanism is arranged at the position of a valve port flange of a valve actuator body to achieve cleaning work on a valve port, and cleaning work can be conducted without disassembling the valve actuator. The input pipe fitting is arranged on one side of the butt-joint sealing disc, the output pipe fitting is arranged on the other corresponding side of the butt-joint sealing disc, the input pipe fitting is externally connected with the flushing water conveying pipe, flushing water enters the annular containing cavity of the butt-joint sealing disc and then is sprayed out from the spraying opening to clean the valve port, and liquid obtained after cleaning flows out from the output pipe fitting, so that cleaning work of the valve port is more convenient. Cleaning water can be introduced from the outside, cleaning gas can also be introduced, the cleaning gas is input from the input pipe fitting to clean the valve port and the inner side of the valve port, and the cleaned gas flows out from the output pipe fitting. And flexible regulation and control can be carried out according to actual flushing requirements, and good working flexibility is achieved.

Description

Technical Field

[0001] The present invention relates to a valve actuator, and in particular to a manual valve actuator with a valve port flushing function. Background Art

[0002] A valve actuator is a machine used to drive a valve to open and close, mainly divided into two types: electric and manual; the driving source of the valve actuator usually adopts a gear transmission structure, and is electrically driven through motor control, or manually driven through a handwheel control.

[0003] The existing document with the publication number CN221463069U discloses a manual valve actuator. Its solution aims at the problem that when an internal failure occurs in the actuator, the upper cover needs to be removed for maintenance, and during the disassembly process, it is also necessary to release the rotational fit between the upper cover and the drive shaft, and there are often difficulties in removing the upper cover. Its solution includes a bottom cover, an upper cover, a partition plate, a drive shaft, a transmission mechanism, and a handle. A step is provided on the inner peripheral surface of the bottom cover; the upper cover is installed on the cover opening of the bottom cover; the partition plate is installed on the step, and an inner cavity is formed between the partition plate and the inner bottom surface of the bottom cover; the drive shaft is installed in the inner cavity, and both ends of the drive shaft are rotationally fitted with the partition plate and the inner bottom surface of the bottom cover respectively, and the end of the drive shaft close to the bottom cover extends out of the bottom cover; the transmission mechanism is installed in the inner cavity, the transmission mechanism drives the drive shaft to rotate, the transmission mechanism has a manual drive end, and the manual drive end extends out of the bottom cover and / or the upper cover; the handle is detachably installed on the surface of the bottom cover and / or the upper cover, and the handle is detachably fitted with the drive end.

[0004] Generally, the valve actuator and the valve seat are connected by a flange. During actual use, when it is necessary to clean the connection position of the valve port, generally, the valve actuator and the valve seat are disassembled, and then the valve port is flushed and cleaned. The existing valve actuator lacks a suitable cleaning mechanism to meet the cleaning requirements of its valve port, and needs to be improved and optimized.

[0005] Therefore, the present invention proposes a manual valve actuator with a valve port flushing function to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a manual valve actuator with a valve port flushing function to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A manual valve actuator with a valve port flushing function, including a valve actuator main body, one end of the valve actuator main body is provided with a control handwheel, the other end is provided with a valve port flange, and the valve port flange is provided with mounting holes.

[0008] On the inner side of the end face of the valve port flange, a docking card slot is provided, and the docking card slot is connected to the flushing mechanism.

[0009] Preferably, the flushing mechanism includes a docking sealing plate, a docking hole body, a docking clamping ring, an input pipe fitting, a first connection plate, an output pipe fitting, a second connection plate, a communication cavity, an annular accommodation cavity, a spray port, and an auxiliary component; Docking clamping rings are symmetrically and fixedly arranged on both sides of the docking sealing plate, and a docking hole body is arranged in the docking sealing plate. An input pipe fitting is arranged on one side of the docking sealing plate, and an output pipe is arranged on the other side of the docking sealing plate. A first connection plate is arranged at one end of the input pipe fitting, and a second connection plate is arranged at one end of the output pipe fitting.

[0010] Preferably, the positions of the docking hole body and the installation hole body on the valve port flange correspond to each other, and the number of sets is the same; The docking clamping ring and the docking card slot are adapted and clamped to each other.

[0011] Preferably, the annular accommodation cavity is arranged in the docking sealing plate, the communication cavities are symmetrically arranged in the docking sealing plate, and one end of one of the communication cavities is connected to the annular accommodation cavity and the other end is connected to the input pipe fitting, and one end of the other communication cavity is connected to the annular accommodation cavity and the other end is connected to the output pipe fitting.

[0012] Preferably, the spray ports are arranged in an equidistant annular shape in the docking sealing plate, and the spray ports are connected to the annular accommodation cavity. The spray ports are arranged in two layers on the inner side of the docking sealing plate, and the spray ports in the upper layer are inclined upward, and the spray ports in the lower layer are inclined downward.

[0013] Preferably, an auxiliary component is arranged on the output pipe fitting. The auxiliary component includes a loading box body, a front side sealing plate, a back side sealing plate, a bearing disc body, a connecting shaft body, a bearing cavity groove, a limit card slot, a handle, a positioning structure, and a connecting fitting; The loading box body is arranged on the output pipe fitting and the two are connected and communicated. A first opening is arranged on the front side of the loading box body, and a second opening is arranged on the back side. The first opening is connected with a front side sealing plate, and the second opening is connected with a back side sealing plate. A bearing disc body is movably arranged in the loading box body, and a connecting shaft body is fixedly arranged at one end of the bearing disc body. The connecting shaft body is movably inserted into one side of the loading box body, and a handle is fixedly arranged at the end. The handle is positioned through the arranged positioning structure.

[0014] Preferably, bearing cavity grooves are equidistantly arranged in the bearing disc body. The notch of the bearing cavity groove is circular, and limit card slots are symmetrically arranged on the inner side wall of the bearing cavity groove. Connecting fittings are arranged in the bearing cavity grooves.

[0015] Preferably, the positioning structure includes a positioning card slot, a fixing plate member, and a positioning screw; the positioning card slots are equidistantly arranged on the side wall of the connecting shaft body, the fixing plate member is fixedly arranged on the front side of the loading box body and near the side of the connecting shaft body, and a positioning screw is threadedly connected in the fixing plate member.

[0016] Preferably, the connecting fitting includes a bearing ring member, a limiting card strip, a first hemispherical shell, a second hemispherical shell, a connecting slot, a connecting strip, an auxiliary blade, a filtering through hole, an auxiliary cone tube, and an installation component; the outer side wall of the bearing ring member is symmetrically and fixedly provided with limiting card strips, the limiting card strips correspond to the limiting card slots in position and have the same number of sets, and the two are adaptively inserted; the connecting strips are symmetrically arranged at the shell opening of the first hemispherical shell, the connecting slots are symmetrically arranged at the shell opening of the second hemispherical shell, the connecting strips and the connecting slots correspond to each other in position and have the same number of sets, and the two are adaptively clamped; the first hemispherical shell and the second hemispherical shell are butted to form a spherical shell body, the spherical shell body is placed in the bearing ring member, and the spherical shell body is installed through the provided installation component; the bearing ring member is placed in the bearing cavity groove on the bearing disc body, and one bearing cavity groove is provided with one bearing ring member; the outer side walls of the first hemispherical shell and the second hemispherical shell are equidistantly and fixedly provided with auxiliary blades, and the side walls of the first hemispherical shell and the second hemispherical shell are uniformly provided with filtering through holes, and an auxiliary cone tube is fixedly arranged at the inner hole opening position of the filtering through hole.

[0017] Preferably, the installation component includes an installation groove, a threaded through groove, a receiving groove, an installation screw, and an auxiliary ball; the installation groove is arranged at the center position of the outer side wall of the first hemispherical shell and also at the center position of the outer side wall of the second hemispherical shell; the threaded through grooves are symmetrically arranged in the bearing ring member, and a receiving groove is arranged at the outer groove opening position of the threaded through groove; the installation screw is threadedly connected with the threaded through groove in an adaptive manner, and an auxiliary ball is movably embedded at one end of the installation screw.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The manual valve actuator designed by the present invention includes a valve actuator body. One end of the valve actuator body is provided with a regulating handwheel, and the other end is provided with a valve port flange. The valve port flange is provided with mounting hole bodies. Among them, a docking slot is arranged on the inner side of the end face of the valve port flange, and the docking slot is connected to a flushing mechanism. And in this solution, a flushing mechanism is arranged at the valve port flange position of the valve actuator body to clean the valve port. It is no longer necessary to disassemble the valve actuator to carry out the cleaning work, which improves the convenience of the valve port cleaning work. By arranging an input pipe fitting on one side of the docking sealing plate and an output pipe fitting on the corresponding other side, the input pipe fitting is externally connected to a flushing water delivery pipe. The flushing water enters the annular accommodating cavity of the docking sealing plate, and then sprays out from the spray port to clean the valve port. And the liquid after cleaning flows out from the output pipe fitting. For the cleaning work of the valve port, cleaning water can be introduced from the outside, or cleaning gas can be introduced. The cleaning gas is input from the input pipe fitting, enters the valve port position, and cleans the valve port and the inner side of the valve port. The gas after cleaning then flows out from the output pipe fitting. It can be flexibly regulated according to the actual flushing requirements, and has good working flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic left-side view of the structural connection of the manual valve actuator of the present invention;

[0021] Figure 2 It is a schematic right-side view of the structural connection of the manual valve actuator of the present invention;

[0022] Figure 3 It is a schematic right-side view of the structural connection of the flushing mechanism of the present invention;

[0023] Figure 4 is Figure 3 an enlarged schematic view of the structural connection at A in

[0024] Figure 5 It is a schematic left-side view of the structural connection of the flushing mechanism of the present invention;

[0025] Figure 6 It is a schematic view of the internal structural connection of the docking sealing plate of the present invention;

[0026] Figure 7 is Figure 6 an enlarged schematic view of the structural connection at B in

[0027] Figure 8 It is a schematic view of the structural connection of the bearing plate body in the auxiliary component of the present invention;

[0028] Figure 9 It is an exploded top view of the structural connection of the connecting fitting of the present invention;

[0029] Figure 10 is Figure 9Schematic enlarged view of the structural connection at position C in

[0030] Figure 11 For Figure 9 Schematic enlarged view of the structural connection at position D in

[0031] Figure 12 Exploded upward view of the structural connection of the connection fitting of the present invention

[0032] Figure 13 For Figure 12 Schematic enlarged view of the structural connection at position E in

[0033] In the figure: valve actuator body 1, regulating handwheel 2, valve port flange 3, mounting hole body 31, docking card slot 32, docking sealing plate 401, docking hole body 402, docking snap ring 403, input pipe fitting 404, first connection plate 405, output pipe fitting 406, second connection plate 407, communication cavity 408, annular accommodation cavity 409, injection port 410, loading box body 501, front side sealing plate 502, back side sealing plate 503, bearing disc body 504, connecting shaft body 505, bearing cavity groove 506, limiting card slot 507, handle 508, positioning card slot 601, fixing plate member 602, positioning screw 603, bearing ring member 701, limiting card strip 702, first hemispherical shell 703, second hemispherical shell 704, connection slot 705, connection insert 706, auxiliary blade 707, filter through hole 708, auxiliary tapered pipe 709, mounting groove 801, threaded through groove 802, accommodation groove 803, mounting screw 804, auxiliary ball 805. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. For the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figures 1-13 , a manual valve actuator with a valve port flushing function, including a valve actuator body 1, a regulating handwheel 2 is arranged at one end of the valve actuator body 1, a valve port flange 3 is arranged at the other end, and a mounting hole body 31 is arranged on the valve port flange 3; wherein a docking card slot 32 is arranged on the inner side of the end face of the valve port flange 3, and the docking card slot 32 is connected to a flushing mechanism.

[0036] In this solution, a flushing mechanism is provided at the valve port flange 3 of the valve actuator body 1 to clean the valve port. The valve actuator does not need to be disassembled for cleaning, improving the convenience of valve port cleaning. By setting an input pipe fitting 404 on one side of the docking sealing disc 401 and an output pipe fitting 406 on the corresponding other side, the input pipe fitting 404 is externally connected to a flushing water delivery pipe. The flushing water enters the annular accommodation cavity 409 of the docking sealing disc 401 and then sprays out from the spray ports 410 to clean the valve port, and the cleaned liquid then flows out from the output pipe fitting 406.

[0037] Among them, the spray ports 410 provided on the inner ring side of the docking sealing disc 401 are inclined. The purpose is to guide the sprayed flushing water to facilitate the cleaning of the inner side of the valve port. That is, the flushing mechanism includes a docking sealing disc 401, a docking hole body 402, a docking snap ring 403, an input pipe fitting 404, a first connection disc 405, an output pipe fitting 406, a second connection disc 407, a communication cavity 408, an annular accommodation cavity 409, spray ports 410 and an auxiliary component; docking snap rings 403 are symmetrically and fixedly provided on both sides of the docking sealing disc 401, and a docking hole body 402 is provided in the docking sealing disc 401. An input pipe fitting 404 is provided on one side of the docking sealing disc 401, and an output pipe 406 is provided on the other side of the docking sealing disc 401. A first connection disc 405 is provided at one end of the input pipe fitting 404, and a second connection disc 407 is provided at one end of the output pipe fitting 406; the positions of the docking hole body 402 correspond to the installation hole bodies 31 on the valve port flange 3, and the number of sets is the same; the docking snap ring 403 and the docking slot 32 are adapted and clamped to each other; the annular accommodation cavity 409 is provided in the docking sealing disc 401, the communication cavities 408 are symmetrically provided in the docking sealing disc 401, and one end of one communication cavity 408 is connected to the annular accommodation cavity 409, and the other end is connected to the input pipe fitting 404. The other communication cavity 408 has one end connected to the annular accommodation cavity 409 and the other end connected to the output pipe fitting 406; the spray ports 410 are arranged equidistantly in a ring shape in the docking sealing disc 401, and the spray ports 410 are connected to the annular accommodation cavity 409. The spray ports 410 are provided in two layers on the inner side of the docking sealing disc 401. The spray ports 410 in the upper layer are inclined upward, and the spray ports 410 in the lower layer are inclined downward.

[0038] For the cleaning of the valve port, cleaning water can be introduced from the outside, or cleaning gas can be introduced. The cleaning gas is input from the input pipe fitting 404, enters the valve port position, and cleans the valve port and the inner side of the valve port. The cleaned gas then flows out from the output pipe fitting 406; it can be flexibly adjusted according to actual flushing requirements, having good working flexibility.

[0039] During the flushing operation, in order to filter and collect the impurities flowing out after cleaning and prevent the flowing-out impurities from affecting the operation of other devices, an auxiliary component is provided on the output pipe fitting 406 in this solution. That is, the auxiliary component includes a loading box body 501, a front side sealing plate 502, a back side sealing plate 503, a bearing disc body 504, a connecting shaft body 505, a bearing cavity groove 506, a limit card slot 507, a handle 508, a positioning structure, and a connecting fitting; the loading box body 501 is arranged on the output pipe fitting 406 and the two are communicated. The front side of the loading box body 501 is provided with a first opening, and the back side is provided with a second opening. The first opening is connected with the front side sealing plate 502, and the second opening is connected with the back side sealing plate 503. A bearing disc body 504 is movably arranged in the loading box body 501, and one end of the bearing disc body 504 is fixedly provided with a connecting shaft body 505. The connecting shaft body 505 is movably inserted on one side of the loading box body 501, and the end is fixedly provided with a handle 508. The handle 508 is positioned through the provided positioning structure; the bearing cavity grooves 506 are equidistantly arranged in the bearing disc body 504. The notch of the bearing cavity groove 506 is circular, and the inner side walls of the bearing cavity grooves 506 are symmetrically provided with limit card slots 507.

[0040] Regarding the positioning work of the bearing disc body 504, this solution is realized through the provided positioning structure. That is, the positioning structure includes a positioning card slot 601, a fixing plate member 602, and a positioning screw 603; the positioning card slots 601 are equidistantly arranged on the side wall of the connecting shaft body 505. The fixing plate member 602 is fixedly arranged on the front side of the loading box body 501 and is close to the side of the connecting shaft body 505. A positioning screw 603 is threadedly connected in the fixing plate member 602. By rotating the connecting shaft body 505 to control the rotation of the bearing disc body 504, after adjustment, the locking of the connecting shaft body 505 is realized through the clamping of the positioning screw 603 and the positioning card slot 601 on the side wall of the connecting shaft body 505, and then the positioning work of the bearing disc body 504 is realized. The positioning card slots 601 arranged on the side wall of the connecting shaft body 505 and the bearing cavity grooves 506 on the bearing disc body 504 are arranged in corresponding positions and have the same number of sets, that is, four sets are provided.

[0041] A connecting fitting is arranged in the bearing cavity groove 506. The connecting fitting includes a bearing ring 701, a limiting strip 702, a first hemispherical shell 703, a second hemispherical shell 704, a connecting slot 705, a connecting strip 706, an auxiliary blade 707, a filtering through hole 708, an auxiliary cone 709 and an installation component. The limiting strips 702 are symmetrically and fixedly arranged on the outer side wall of the bearing ring 701. The limiting strips 702 and the limiting grooves 507 are arranged at corresponding positions and have the same number of sets, and they are adaptively inserted. The connecting strips 706 are symmetrically arranged at the shell opening position of the first hemispherical shell 703, and the connecting slots 705 are symmetrically arranged at the shell opening of the second hemispherical shell 704. The connecting strips 706 and the connecting slots 705 are arranged at corresponding positions and have the same number of sets, and they are adaptively clamped. The first hemispherical shell 703 and the second hemispherical shell 704 are butted to form a spherical shell body, and the spherical shell body is placed in the bearing ring 701, and the spherical shell body is installed through the arranged installation component. The bearing ring 701 is placed in the bearing cavity groove 506 on the bearing disc 504, and one bearing cavity groove 506 is provided with one bearing ring 701. The auxiliary blades 707 are equidistantly and fixedly arranged on the outer side walls of the first hemispherical shell 703 and the second hemispherical shell 704, and the filtering through holes 708 are evenly arranged on the side walls of the first hemispherical shell 703 and the second hemispherical shell 704. The auxiliary cone 709 is fixedly arranged at the inner hole opening position of the filtering through hole 708. The installation component includes an installation groove 801, a threaded through groove 802, a receiving groove 803, an installation screw 804 and an auxiliary ball 805. The installation groove 801 is arranged at the central position of the outer side wall of the first hemispherical shell 703 and also at the central position of the outer side wall of the second hemispherical shell 704. The threaded through grooves 802 are symmetrically arranged in the bearing ring 701, and the receiving groove 803 is arranged at the outer groove opening position of the threaded through groove 802. The installation screw 804 is threadedly connected with the threaded through groove 802 in an adaptive manner, and an auxiliary ball 805 is movably embedded at one end of the installation screw 804.

[0042] The ball shell is arranged in the bearing cavity groove 506, and the filter through holes 708 are evenly arranged on the ball shell and the auxiliary cone tube 709 is arranged at the inner hole of the filter through hole 708. The purpose is to prevent impurities from entering the ball shell from the filter through hole 708 and avoid the impurities from flowing out again. It has a collection and storage function for the impurities entering the filter. When a large number of impurities are collected in the ball shell, in order to avoid clogging the flushing water or flushing gas, a new ball shell can be quickly replaced by rotating the bearing disc 504, that is, replacing a new ball shell, that is, first rotating the positioning screw 603 so that the positioning screw 603 is fixed. When one end of the positioning screw 603 is separated from the positioning slot 601, the positioning of the supporting disc 504 can be released, and then the connecting shaft 505 is rotated by the handle 508, thereby driving the supporting disc 504 to rotate until the other supporting cavity 506 reaches the pipe mouth position of the output pipe fitting 406. At the same time, the positioning slot 601 set at the corresponding position of the connecting shaft 505 is aligned with the positioning screw 603, and then the positioning screw 603 is tightened so that one end of it is stuck in the positioning slot 601, so as to realize the positioning of the supporting disc 504 and quickly realize the replacement of the ball shell.

[0043] The present solution further provides a front sealing plate 502 on the front side of the loading box body 501 and a back sealing plate 503 on the back side, that is, when the replaced ball shell reaches the opening position of the loading box body 501, the front sealing plate 502 and the back sealing plate 503 are removed, and then the supporting ring 701 is pushed from one of the opening positions until the supporting ring 701 is taken out. After that, for cleaning the ball shell, the positioning effect of the mounting screws 804 on the ball shell is released, and the ball shell can be disassembled. The ball shell in the present solution is spliced ​​by a first hemispherical shell 703 and a second hemispherical shell 704, so that the impurities filtered and collected therein can be better cleaned.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual valve actuator with a valve port flushing function, comprising a valve actuator body (1), one end of the valve actuator body (1) is provided with a regulating hand wheel (2), the other end of the valve actuator body (1) is provided with a valve port flange (3), and the valve port flange (3) is provided with a mounting hole (31); Features: A docking slot (32) is provided on the inner side of the end surface of the valve port flange (3), and the docking slot (32) is connected to the flushing mechanism.

2. The manual valve actuator with valve port flushing function according to claim 1, characterized in that: The flushing mechanism comprises a docking sealing disk (401), a docking hole body (402), a docking clamp ring (403), an input pipe fitting (404), a first connecting disk (405), an output pipe fitting (406), a second connecting disk (407), a connecting cavity (408), an annular accommodating cavity (409), an injection port (410) and an auxiliary component; docking clamp rings (403) are symmetrically fixedly arranged on both sides of the docking sealing disk (401), and a docking hole body (402) is arranged in the docking sealing disk (401); an input pipe fitting (404) is arranged on one side of the docking sealing disk (401), and an output pipe (406) is arranged on the other side of the docking sealing disk (401); one end of the input pipe fitting (404) is arranged with a first connecting disk (405), and one end of the output pipe fitting (406) is arranged with a second connecting disk (407).

3. The manual valve actuator with valve port flushing function according to claim 2, characterized in that: The docking holes (402) and the mounting holes (31) on the valve port flange (3) are arranged at corresponding positions and have the same number of groups; the docking clamp ring (403) and the docking clamp groove (32) are adapted to be clamped.

4. The manual valve actuator with valve port flushing function according to claim 2, characterized in that: The annular accommodating cavity (409) is arranged in the docking sealing disk (401), and the connecting cavity (408) is symmetrically arranged in the docking sealing disk (401), and one end of one of the connecting cavities (408) is connected to the annular accommodating cavity (409), and the other end is connected to the input pipe fitting (404), and one end of the other connecting cavity (408) is connected to the annular accommodating cavity (409), and the other end is connected to the output pipe fitting (406).

5. The manual valve actuator with valve port flushing function according to claim 2, characterized in that: The injection ports (410) are arranged in an annular shape at equal intervals in the docking sealing disk (401), and the injection ports (410) are connected to the annular accommodating cavity (409). The injection ports (410) are arranged in two layers on the inner side of the docking sealing disk (401), and the injection ports (410) in the upper layer are arranged to be tilted upward, while the injection ports (410) in the lower layer are arranged to be tilted downward.

6. The manual valve actuator with valve port flushing function according to claim 2, characterized in that: The output pipe (406) is provided with an auxiliary component, which includes a loading box body (501), a front side sealing plate (502), a back side sealing plate (503), a bearing plate body (504), a connecting shaft body (505), a bearing cavity groove (506), a limit slot (507), a handle (508), a positioning structure and a connecting accessory; the loading box body (501) is arranged on the output pipe (406), and the two are arranged in communication, and the front side of the loading box body (501) is provided with a first opening, and the rear side of the loading box body (501) is provided with a first opening. A second opening is arranged on the rear side, and the first opening is connected to a front side sealing plate (502), and the second opening is connected to a back side sealing plate (503). A carrying plate (504) is movably arranged in the loading box body (501), and a connecting shaft (505) is fixedly arranged at one end of the carrying plate body (504). The connecting shaft (505) is movably plugged into one side of the loading box body (501), and a handle (508) is fixedly arranged at the end, and the handle (508) is positioned by a positioning structure.

7. The manual valve actuator with valve port flushing function according to claim 6, characterized in that: The bearing plate body (504) is provided with bearing cavity grooves (506) at equal intervals, the groove openings of the bearing cavity grooves (506) are arranged in a circular shape, and the inner side walls of the bearing cavity grooves (506) are symmetrically provided with limit slots (507), and connection accessories are arranged in the bearing cavity grooves (506).

8. The manual valve actuator with valve port flushing function according to claim 6, characterized in that: The positioning structure comprises a positioning slot (601), a fixing plate (602) and a positioning screw (603); the positioning slot (601) is equidistantly arranged on the side wall of the connecting shaft (505); the fixing plate (602) is fixedly arranged on the front side of the loading box body (501) and close to the side position of the connecting shaft (505); and the fixing plate (602) is threadedly connected with a positioning screw (603).

9. The manual valve actuator with valve port flushing function according to claim 6, characterized in that: The connection accessory comprises a bearing ring (701), a limiting clamping strip (702), a first hemispherical shell (703), a second hemispherical shell (704), a connection slot (705), a connection insert (706), an auxiliary blade (707), a filtering through hole (708), an auxiliary cone (709) and a mounting assembly; the outer wall of the bearing ring (701) is symmetrically and fixedly provided with a limiting clamping strip (702); the limiting clamping strip (702) and the limiting clamping slot (507) are arranged at corresponding positions and have the same number of groups, and the two are adapted to be plugged in; the shell opening of the first hemispherical shell (703) is symmetrically provided with a connection insert (706); the shell opening of the second hemispherical shell (704) is symmetrically provided with a connection slot (705); the connection insert (706) and the connection slot (705) are arranged at corresponding positions. The first hemispherical shell (703) and the second hemispherical shell (704) are connected to form a spherical shell, which is placed in a bearing ring (701) and installed by means of a mounting assembly. The bearing ring (701) is placed in a bearing cavity groove (506) on a bearing disc (504), and a bearing cavity groove (506) is provided with a bearing ring (701). Auxiliary blades (707) are fixedly provided at equal distances on the outer side walls of the first hemispherical shell (703) and the second hemispherical shell (704), and filtering through holes (708) are evenly provided on the side walls of the first hemispherical shell (703) and the second hemispherical shell (704), and an auxiliary cone (709) is fixedly provided at the inner opening position of the filtering through hole (708).

10. The manual valve actuator with valve port flushing function according to claim 9, characterized in that: The mounting assembly comprises a mounting groove (801), a threaded groove (802), a receiving groove (803), a mounting screw (804) and an auxiliary ball (805); the mounting groove (801) is arranged at the center position of the outer wall of the first hemispherical shell (703), and is also arranged at the center position of the outer wall of the second hemispherical shell (704); the threaded groove (802) is symmetrically arranged in the bearing ring (701), and the receiving groove (803) is arranged at the outer notch position of the threaded groove (802); the mounting screw (804) is threadedly connected to the threaded groove (802), and one end of the mounting screw (804) is movably embedded with an auxiliary ball (805).

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