Flat foot upper water sealing valve element capable of bearing high pressure

Abstract

The invention relates to the technical field of water valve elements, and discloses a flat foot upper sealing water valve element capable of bearing high pressure, which comprises a main body, a mounting groove is formed in the main body, a pressing plate is arranged on the mounting groove, a pressing cover is fixedly mounted in the mounting groove, a rotating shaft is arranged on the side wall of the pressing cover, and a driving plate is slidably mounted at the bottom of the pressing cover. An upper ceramic chip is arranged at the bottom of the driving plate, and a lower ceramic chip is fixedly mounted at the bottom of the mounting groove; a lubricating assembly is arranged on the rotating shaft, and an adjusting assembly is arranged between the drive plate and the gland. According to the flat foot upper water sealing valve element capable of bearing high pressure, the capillary holes and the cotton slivers are arranged, lubricating liquid can be stored in the connecting pipe, slow and uniform release of the lubricating liquid is achieved through the siphoning effect, the cotton slivers enable the lubricating liquid to permeate into the shaft hole at a small amount and a stable speed to continuously lubricate the rotating shaft, abrasion or blocking caused by insufficient lubrication is avoided, and the service life of the rotating shaft is prolonged. The rotating smoothness of the lower handle is improved, and the overall service life of the valve element is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water valve core, and particularly relates to a flat-foot upper-seal water valve core capable of bearing high pressure. BACKGROUND

[0002] The flat-foot upper-seal water valve core is a core component in the field of water flow control, precisely adjusts the mixing ratio of cold and hot water through a multi-layer ceramic sheet superposition structure, adopts corrosion-resistant brass alloy and high-temperature sintered ceramic material, realizes zero-leakage sealing and low-friction operation, has the characteristics of water hammer resistance and calcification prevention, is widely used in bathroom and industrial cooling systems, and is integrated with intelligent temperature control and modular quick-release design, and has the characteristics of energy saving and long service life and is used in ultra-low pressure or high-temperature working conditions.

[0003] According to the search, the Chinese utility model patent with the publication number CN203847738U discloses an upper-seal water side-outlet valve core, which comprises a valve body composed of a valve rod, a shell, a rotating seat, a ceramic valve core and a shell base, the ceramic valve core is composed of an upper ceramic sheet and a lower ceramic sheet, a ceramic seat is installed on the upper ceramic sheet, and the ceramic seat is fixedly assembled by the rotating seat; one side of the upper ceramic sheet and the lower ceramic sheet in contact with each other is provided with an open water conveying groove, a water outlet through hole is formed in the side of the shell, and the outlet of the open water conveying groove corresponds to the water outlet through hole; the lower ceramic sheet is provided with three through holes, the middle one is a water outlet hole, and the two sides of the water outlet hole are symmetrical arc-shaped water inlet holes; a sealing ring is installed on the rotating seat for sealing; the utility model realizes the function of water outlet from the side, has a simple structure, and is widely applied to faucets.

[0004] In view of the above and the prior art, the inventors believe that the following defects often exist: the upper-seal water valve core is prone to aging and wear at the connection of the handle rotation in long-term use, which causes blockage when the handle rotates, causes the faucet handle to be stuck, causes the service life of the valve core to be short, and new valve cores need to be frequently replaced, and the water pressure conditions of different regions and floors are often different, the valve core needs to have higher sealing pressure inside for high water pressure, but higher sealing pressure will cause higher wear inside the valve core, and the valve core is more prone to damage, but in order to adapt to various use requirements, a larger sealing pressure is often preset inside the valve core, which limits the service life of the valve core. SUMMARY

[0005] The technical problem to be solved by the present application is that the valve core is prone to aging and blockage in the prior art, and the sealing pressure is high, which reduces the service life, and therefore the present application provides a flat-foot upper-seal water valve core capable of bearing high pressure.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a high-pressure-resistant flat-foot upper water sealing valve core, comprising a main body, a mounting groove is arranged on the main body, a pressing plate is arranged on the mounting groove, a screw is screwed between the pressing plate and the main body, a pressing cover is fixedly installed in the mounting groove, a rotating shaft is arranged on the side wall of the pressing cover, a dial plate is slidably installed at the bottom of the pressing cover, an upper ceramic sheet is arranged at the bottom of the dial plate, a lower ceramic sheet is fixedly installed at the bottom of the mounting groove, an inner rubber ring is fixedly installed between the lower ceramic sheet and the main body, the upper ceramic sheet and the lower ceramic sheet are slidably connected, a copper nut is arranged on the main body, and a handle mechanism is arranged on the pressing cover and matched with the dial plate.

[0007] A lubricating assembly is arranged on the rotating shaft, and an adjusting assembly is arranged between the dial plate and the pressing cover.

[0008] Preferably, the handle mechanism comprises an upper handle, a through hole is formed in the upper handle, a lower handle is arranged at the bottom of the upper handle, a connecting pipe is fixedly installed on the lower handle and slidably connected with the through hole, and an axle hole matched with the rotating shaft is formed in the lower handle.

[0009] Preferably, the lubricating assembly comprises a capillary hole formed in the lower handle, the capillary hole is in communication with the connecting pipe and the axle hole at both ends, a cotton strip is slidably installed in the capillary hole, and a top cover is screwed on the connecting pipe.

[0010] Preferably, an overflow groove matched with the capillary hole is formed in the inner side wall of the axle hole along the axial direction.

[0011] Preferably, a drainage groove perpendicular to the axial direction is formed in the inner side wall of the axle hole, and a plurality of lubricating grooves in ring array are formed in the inner side wall of the axle hole and in communication with the drainage groove.

[0012] Preferably, a sealing groove is formed in the top of the connecting pipe, a sealing ring matched with the sealing groove is fixedly installed between the top cover and the connecting pipe.

[0013] Preferably, a lubricating bag is arranged in the connecting pipe, and a thorn is fixedly installed at the bottom of the top cover.

[0014] Preferably, a limiting plate is fixedly installed on the upper handle, a threaded sleeve is fixedly installed on the side wall of the upper handle, an upper clamping block is fixedly installed at the bottom of the upper handle, a lower clamping block matched with the upper clamping block is fixedly installed at the top of the lower handle, a circular table block matched with the upper clamping block and the lower clamping block is slidably installed in the threaded sleeve, and a compression bolt is screwed in the threaded sleeve.

[0015] Preferably, the adjusting assembly comprises symmetrical sliding grooves opened on the gland, a pressing block slidingly installed in the sliding groove, and four screw holes on the gland, which are adapted to the pressing block and screwed with adjusting bolts.

[0016] Preferably, a sliding table adapted to the pressing block is fixedly installed on the top of the dial, and a flexible pad is fixedly installed on the bottom of the adjusting bolt.

[0017] Technical effects and advantages of the present application:

[0018] In the present application, the connecting pipe can store lubricating liquid through the capillary hole and the cotton, and the slow and uniform release of the lubricating liquid is realized through the siphon effect of the bottom capillary hole and the cotton. The cotton acts as a flow guide medium to ensure that the lubricating liquid penetrates into the shaft hole at a micro and stable speed, continuously lubricates the rotating shaft, avoids wear or jam caused by insufficient lubrication, improves the smoothness of the lower handle rotation, and prolongs the service life of the valve core as a whole.

[0019] In the present application, the lubricating liquid can flow to both sides of the shaft hole along the overflow groove, and the relative sliding of the lower handle during rotation enables the lubricating liquid to fully cover the surface of the rotating shaft, especially for the area with limited rotation amplitude, to achieve more comprehensive lubrication effect and reduce the risk of local wear. The top cover and the connecting pipe are tightly matched through the sealing groove and the sealing ring to form an efficient sealing structure, effectively preventing the leakage of lubricating liquid. In combination with the design of the micro capillary hole only opened at the bottom, the accidental outflow of lubricating liquid due to gravity or pressure is further avoided, ensuring long-term storage of internal lubricating liquid, preventing the lubricating liquid from polluting the water body or staining the user's hands, and improving the safety and cleanliness of use.

[0020] In the present application, by setting the pressing bolt and the circular table block, the degree of extrusion of the pressing bolt on the circular table block and the upper and lower clamping blocks is adjusted, the pressure between the lower handle and the rotating shaft is changed, and the rotating damping feeling is flexibly adjusted. Adjusting the pressing bolt outward reduces the pressure between the lower handle and the rotating shaft and reduces the friction, making the operation more comfortable. Adjusting the pressing bolt inward increases the pressure and friction, providing a moderate damping feeling and improving the operation accuracy.

[0021] In the present application, by setting the adjusting bolt and the pressing block, the adjusting bolt controls the pressure of the pressing block on the upper and lower ceramic sheets. When the adjusting bolt is tightened, the pressing block presses the upper ceramic sheet downward through the sliding table, enhancing the sealing property of the upper and lower ceramic sheets and preventing water leakage under high pressure, ensuring normal operation of the valve core. When the adjusting bolt is loosened, the pressure on the upper ceramic sheet is reduced, reducing the friction between the components and the wear under the premise of ensuring basic sealing, prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the exploded structure of the handle mechanism of the present invention;

[0026] Figure 4 It is a partial cross-sectional structural schematic diagram of the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 7 It is a schematic diagram of the exploded structure of the regulating assembly of the present invention;

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the adjustment component of the present invention.

[0031] Legend: 1. Main body; 2. Mounting slot; 3. Pressing plate; 31. Screw; 32. Pressing cover; 33. Rotating shaft; 34. Dial; 35. Upper ceramic tile; 36. Lower ceramic tile; 37. Inner rubber ring; 38. Copper nut; 4. Upper handle; 41. Lower handle; 42. Shaft hole; 43. Through hole; 44. Connecting pipe; 45. Top cover; 46. Capillary hole; 47. Cotton strip; 48. Overflow groove; 5. Drainage groove; 51. Lubrication groove; 52. Sealing groove; 53. Sealing ring; 54. Burr; 6. Limiting plate; 61. Threaded sleeve; 62. Upper clamping block; 63. Lower clamping block; 64. Holding bolt; 65. Cone block; 7. Sliding groove; 71. Pressing block; 72. Threaded hole; 73. Adjusting bolt; 74. Flexible pad; 75. Sliding table. DETAILED DESCRIPTION

[0032] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0033] Refer to Figures 1 to 8 The application provides a technical scheme: a high-pressure-resistant flat-foot upper water sealing valve core, which comprises a main body 1, an installation groove 2 is arranged on the main body 1, a pressing plate 3 is arranged on the installation groove 2, a screw 31 is screwed between the pressing plate 3 and the main body 1, a pressing cover 32 is fixedly installed in the installation groove 2, a rotating shaft 33 is arranged on the side wall of the pressing cover 32, a dial plate 34 is slidably installed at the bottom of the pressing cover 32, an upper porcelain sheet 35 is arranged at the bottom of the dial plate 34, a lower porcelain sheet 36 is fixedly installed at the bottom of the installation groove 2, an inner rubber ring 37 is fixedly installed between the lower porcelain sheet 36 and the main body 1, the upper porcelain sheet 35 and the lower porcelain sheet 36 are slidably connected, a copper nut 38 is arranged on the main body 1, and a handle mechanism that is matched with the dial plate 34 is arranged on the pressing cover 32; a lubricating assembly is arranged on the rotating shaft 33, and an adjusting assembly is arranged between the dial plate 34 and the pressing cover 32.

[0034] The main body 1, the water inlet pipe and the water outlet pipe are connected, the upper handle 4 is actuated when the water flow is adjusted, the lower handle 41 is driven to rotate around the rotating shaft 33 through the through hole 43 and the connecting pipe 44, the dial plate 34 is slid along the pressing cover 32 while rotating at the bottom of the lower handle 41, the upper porcelain sheet 35 that is clamped with the dial plate 34 is slidably connected relative to the lower porcelain sheet 36 while sliding, and then the relative position of the upper porcelain sheet 35 and the lower porcelain sheet 36 is adjusted to change the opening and closing of the water flow.

[0035] Refer to Figures 2 to 5As shown, the handle mechanism includes an upper handle 4, a through hole 43 is opened on the upper handle 4, a lower handle 41 is arranged at the bottom of the upper handle 4, a connecting pipe 44 is fixedly installed on the lower handle 41 and is in sliding connection with the through hole 43, an axle hole 42 is opened on the lower handle 41 and is matched with the rotating shaft 33; the lubricating assembly includes a capillary hole 46 opened on the lower handle 41, the capillary hole 46 is in communication with the connecting pipe 44 and the axle hole 42 at both ends respectively, a cotton strip 47 is slidingly installed in the capillary hole 46, and a top cover 45 is screwed on the connecting pipe 44; a overflow groove 48 matched with the capillary hole 46 is opened on the inner side wall of the axle hole 42 along the axial direction; a drainage groove 5 is opened on the inner side wall of the axle hole 42 and is arranged perpendicularly to the axial direction, a plurality of lubricating grooves 51 in ring array are opened on the inner side wall of the axle hole 42 and are in communication with the drainage groove 5; a sealing groove 52 is opened at the top of the connecting pipe 44, a sealing ring 53 matched with the sealing groove 52 is fixedly installed between the top cover 45 and the connecting pipe 44; a lubricating bag is arranged in the connecting pipe 44, and a thorn 54 is fixedly installed at the bottom of the top cover 45; the valve core is driven to rotate around the rotating shaft 33 by rotating the upper handle 4, the lower handle 41 is driven to rotate by the through hole 43 and the connecting pipe 44, the dial 34 is pushed to slide, the upper ceramic sheet 35 is driven to slide relative to the lower ceramic sheet 36, the water flow is adjusted to open and close, the top cover 45 is opened before installation, the lubricating liquid is injected into the connecting pipe 44, the lubricating liquid is infiltrated into the cotton strip 47 through the capillary hole 46 after the top cover 45 is screwed, the lubricating liquid slowly flows into the axle hole 42, the rotating shaft 33 is lubricated, the service life of the valve core is prolonged, the top cover 45 and the connecting pipe 44 are sealed by the sealing groove 52 and the sealing ring 53, the overflow groove 48 slides relative to the rotating of the lower handle 41, cooperates with the drainage groove 5 and the lubricating groove 51, and the lubricating liquid is uniformly applied to the surface of the rotating shaft 33, and the lubricating effect is improved.

[0036] Referring to Figure 6 As shown, the upper handle 4 is fixedly installed with a limiting plate 6, a threaded sleeve 61 is fixedly installed on the side wall of the upper handle 4, an upper clamping block 62 is fixedly installed at the bottom of the upper handle 4, a lower clamping block 63 matched with the upper clamping block 62 is fixedly installed at the top of the lower handle 41, a circular table block 65 matched with the upper clamping block 62 and the lower clamping block 63 is slidingly installed in the threaded sleeve 61, and a compression bolt 64 is screwed in the threaded sleeve 61; for different users, the compression bolt 64 is screwed to push the circular table block 65, the upper clamping block 62 and the lower clamping block 63 are extruded, the upper handle 4 is limited by the limiting plate 6, the pressure between the lower handle 41 and the rotating shaft 33 is increased by screwing inward, the friction force is increased to improve the damping feeling, and the rotating smoothness is improved by adjusting outward to reduce the friction force, thereby meeting the individual needs.

[0037] Referring to Figure 7 and Figure 8As shown, the adjusting assembly comprises symmetrical sliding grooves 7 opened on the gland 32, a pressing block 71 slidingly installed in the sliding groove 7, four screw holes 72 symmetrically opened on the gland 32 and matched with the pressing block 71, and adjusting bolts 73 screwed in the screw holes 72; a sliding table 75 matched with the pressing block 71 is fixedly installed on the top of the dial 34, and a flexible pad 74 is fixedly installed on the bottom of the adjusting bolt 73; when installed to adapt to different water pressures, the adjusting bolt 73 is screwed to make the pressing block 71 slide downward and abut against the sliding table 75, the pressure of the upper and lower porcelain sheets 35 and 36 is adjusted, the adjusting bolt 73 is tightened to enhance the sealing property in a high-pressure environment, the adjusting bolt 73 is loosened to reduce the pressure in a low-pressure environment, the component loss is reduced, the flexible pad 74 is matched to reduce the abrasion between the gland 32 and the dial 34.

[0038] Working principle: when used, the main body 1, the water inlet pipe and the water outlet pipe are connected, the upper handle 4 is rotated to drive the lower handle 41 to rotate around the rotating shaft 33 through the through hole 43 and the connecting pipe 44, the dial 34 is pushed to slide along the gland 32 while the lower handle 41 rotates at the bottom, the upper porcelain sheet 35 is connected to slide relative to the lower porcelain sheet 36 while sliding, the relative position of the upper and lower porcelain sheets 35 and 36 is adjusted to change the opening and closing of the water flow, before installation, the top cover 45 is opened, lubricating liquid is injected into the connecting pipe 44, the top cover 45 is tightened, the lubricating liquid can seep into the cotton 47 through the capillary hole 46 and flow into the shaft hole 42 from the capillary hole 46, the shaft hole 42 and the rotating shaft 33 are lubricated, the lubricating liquid can slowly flow out under the action of the capillary hole 46, the long-term lubrication of the rotating shaft 33 is ensured, the service life of the valve core is improved, the valve core is more smooth and convenient to use, and after the lubricating liquid is used up, the connecting pipe 44 can be repeatedly injected to maintain long-term lubrication, further simplifying the maintenance method and improving the service life.

[0039] The sealing effect is improved by the sealing groove 52 and the sealing ring 53 between the top cover 45 and the connecting pipe 44, and because the bottom is only provided with the capillary hole 46 and the cotton strip 47 is arranged in the capillary hole 46, the lubricating liquid cannot flow downward under the sealing effect, so that the lubricating liquid can be stored in the connecting pipe 44 for a long time, meeting the needs of long-term lubrication, and can flow out along the cotton strip 47 by siphon effect under the action of the cotton strip 47, so that the lubricating liquid can lubricate the rotating shaft 33 at a slow speed, improving the smoothness of the lower handle 41 rotating along the rotating shaft 33, and when the lubricating liquid flows out of the capillary hole 46 into the shaft hole 42 along the cotton strip 47, it can further flow apart along the overflow groove 48 to the axial sides of the shaft hole 42, and when the lower handle 41 rotates, the overflow groove 48 slides relative to the rotating shaft 33 and lubricates the rotating shaft 33, improving the lubrication effect. Because the rotation range of the lower handle 41 is limited, the lubricating liquid can be evenly applied to the surface of the rotating shaft 33 under the action of the drainage groove 5 and the lubricating groove 51, achieving more comprehensive lubrication effect;

[0040] By using the packaged lubricating bag, when the lubricating bag is placed in the connecting pipe 44, the protrusion 54 on the top cover 45 can pierce the lubricating bag to make the lubricating liquid flow out, so that the lubricating liquid will not flow out to other positions of the valve core due to operation error when injecting the lubricating liquid, avoiding pollution of water body and contamination of hands, facilitating installation and maintenance;

[0041] For different users, such as the elderly and children, it is necessary to ensure that the valve body rotates more easily and smoothly, and it is more suitable for users with less strength. For young people, the valve body needs to have a certain damping feeling when rotating, so as to ensure more accurate adjustment of water flow size. By tightening the bolt 64, the distance pushed by the circular block 65 to the upper and lower clamping blocks 62 and 63 can be changed, and the upper handle 4 is limited by the limiting plate 6. When the circular block 65 extrudes the upper and lower clamping blocks 62 and 63 inward, the lower handle 41 can be further tightened downward, thereby increasing the pressure of the lower handle 41 and the rotating shaft 33, and thereby increasing the friction when the lower handle 41 rotates, thereby improving the damping feeling when rotating. On the contrary, adjusting the bolt 64 outward can reduce the friction when the lower handle 41 rotates, thereby improving the smoothness of use, which can meet the use needs of different users;

[0042] For different water pressure environment, when installing the valve core, the adjusting bolt 73 can be screwed to different positions, so that the pressing block 71 slides downward by different distances and abuts against the sliding table 75, thereby providing different pressures for the upper porcelain sheet 35 and the lower porcelain sheet 36. In the water pressure environment, the adjusting bolt 73 is tightened to improve the sealing performance of the valve core, adapt to the installation environment and enable the valve core to work normally. For the low pressure environment, the adjusting bolt 73 can be loosened to reduce the pressure of the upper porcelain sheet 35 and the lower porcelain sheet 36, ensure the normal working condition, reduce the wear and tear between the components and prolong the service life of the equipment. Through the cooperation of the sliding table 75 and the pressing block 71, the contact area between the gland 32 and the dial 34 is reduced, and the flexible pad 74 is arranged to facilitate the application of appropriate pressure and further reduce the wear and tear of the equipment.

[0043] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes shall belong to the protection scope of the present application.

Claims

1. A flat foot upper water sealing valve core capable of bearing high pressure, characterized in that: The invention comprises a main body (1), wherein the main body (1) is provided with a mounting groove (2), the mounting groove (2) is provided with a pressure plate (3), a screw (31) is screwed between the pressure plate (3) and the main body (1), a pressure cover (32) is fixedly installed in the mounting groove (2), a rotating shaft (33) is provided on the side wall of the pressure cover (32), a dial (34) is slidably installed at the bottom of the pressure cover (32), an upper ceramic piece (35) is provided at the bottom of the dial (34), a lower ceramic piece (36) is fixedly installed at the bottom of the mounting groove (2), an inner rubber ring (37) is fixedly installed between the lower ceramic piece (36) and the main body (1), the upper ceramic piece (35) and the lower ceramic piece (36) are slidably connected, a copper nut (38) is provided on the main body (1), and a handle mechanism adapted to the dial (34) is provided on the pressure cover (32); A lubrication component is provided on the rotating shaft (33), and an adjustment component is provided between the dial (34) and the pressure cover (32).

2. The flat-leg upper water-sealing valve core capable of withstanding high pressure according to claim 1, characterized in that: The handle mechanism comprises an upper handle (4), a through hole (43) being provided on the upper handle (4), a lower handle (41) being provided at the bottom of the upper handle (4), a connecting tube (44) being fixedly mounted on the lower handle (41) and being slidably connected to the through hole (43), and an axis hole (42) being provided on the lower handle (41) and being adapted to the rotating shaft (33).

3. The flat-legged upper water-sealing valve core capable of withstanding high pressure according to claim 2, characterized in that: The lubrication assembly includes a capillary hole (46) provided on the lower handle (41), the two ends of the capillary hole (46) being respectively connected to the connecting tube (44) and the shaft hole (42), a cotton strip (47) being slidably mounted in the capillary hole (46), and a top cover (45) being screwed onto the connecting tube (44).

4. The flat-leg upper water-sealing valve core capable of withstanding high pressure according to claim 3, characterized in that: An overflow groove (48) adapted to the capillary hole (46) is provided on the inner side wall of the axial hole (42) along the axial direction.

5. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 4, characterized in that: A drainage groove (5) arranged perpendicular to the axial direction is provided on the inner side wall of the shaft hole (42), and a plurality of lubrication grooves (51) distributed in a ring array and connected to the drainage groove (5) are provided on the inner side wall of the shaft hole (42).

6. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 3, characterized in that: A sealing groove (52) is provided on the top of the connecting pipe (44), and a sealing ring (53) adapted to the sealing groove (52) is fixedly installed between the top cover (45) and the connecting pipe (44).

7. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 6, characterized in that: A lubrication bag is provided in the connecting pipe (44), and a thorn (54) is fixedly mounted on the bottom of the top cover (45).

8. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 2, characterized in that: A limit plate (6) is fixedly mounted on the upper handle (4), a threaded sleeve (61) is fixedly mounted on the side wall of the upper handle (4), an upper clamping block (62) is fixedly mounted on the bottom of the upper handle (4), a lower clamping block (63) adapted to the upper clamping block (62) is fixedly mounted on the top of the lower handle (41), a frustum block (65) adapted to the upper clamping block (62) and the lower clamping block (63) is slidably mounted in the threaded sleeve (61), and a clamping bolt (64) is screwed into the threaded sleeve (61).

9. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 1, characterized in that: The adjustment assembly comprises a sliding groove (7) symmetrically provided on the pressure cover (32), a pressure block (71) being slidably installed in the sliding groove (7), four threaded holes (72) symmetrically provided on the pressure cover (32) and adapted to the pressure block (71), and an adjustment bolt (73) being screwed into the threaded hole (72).

10. The flat-leg upper water-sealing valve core capable of bearing high pressure according to claim 9, characterized in that: A sliding platform (75) adapted to the pressing block (71) is fixedly mounted on the top of the dial (34), and a flexible pad (74) is fixedly mounted on the bottom of the adjusting bolt (73).

Images