CN223648563U - High-efficient water-saving water supply pipeline valve for building engineering - Google Patents

Abstract

The utility model discloses a high-efficiency water-saving type water supply pipeline valve for construction engineering, which belongs to the technical field of valves and comprises a valve body, wherein a valve cover is fixedly connected to the valve body, a valve rod is slidably arranged on the valve cover, one end of the valve rod extends into the valve body, a valve core is arranged at one end of the valve rod, which is positioned in the valve body, a groove for adapting to the valve core is formed in the valve cover, a limiting component is arranged on the valve cover, the valve core can be limited in the groove by the limiting component, and a semicircular ring capable of locking the valve core is arranged on the valve cover, and the groove matched with the valve core is formed in the valve cover.

Description

High-efficient water-saving water supply pipeline valve for building engineering

Technical Field

The utility model relates to the technical field of valves, and particularly discloses a high-efficiency water-saving water supply pipeline valve for constructional engineering.

Background

The water supply system has very important function in building engineering, it ensures that all users in the building can obtain safe and reliable drinking water and other water demands, and the valve plays an indispensable role in the water supply system, they ensure the normal operation of the system by controlling the direction, pressure and flow of water flow, the valve includes stop valve, gate valve and ball valve, etc., wherein the stop valve is widely used because of having good regulation performance, reliable sealing, easy maintenance, etc., in actual use, the water flow can be accurately controlled by adjusting the opening of the valve, thus achieving the purpose of saving water.

For example, the publication number of CN221145322U is 2024-06-14, which discloses a flange stop valve, and belongs to the technical field of valves. The flange stop valve solves the problems that an existing flange stop valve does not have sealing protection and the like. The flange stop valve comprises a stop valve body, a stop valve cover is mounted on a top bolt of the stop valve body, a stop valve rod is mounted on the center of the top of the stop valve cover in a penetrating manner, a stop valve clack is fixedly connected to the surface of the stop valve rod and located in an inner cavity of the stop valve body, a seal protection assembly is mounted on the center of the bottom of the stop valve cover, and a driving hand wheel is mounted on the top of the surface of the stop valve rod. The utility model cooperates with the rubber sealing ring and the rubber sealing sleeve to achieve the double sealing effect, and the auxiliary connecting ring and the supporting spring further improve the sealing effect.

The existing stop valve including the above patent has the defects that when the existing stop valve is designed, in order to be convenient for overhauling or replacing a valve core, a valve rod of the existing stop valve is connected with the valve core by adopting a pin, and when the stop valve is in an opened state because the water flow direction in the stop valve is from bottom to top, the water flow can impact the valve core from bottom to top, the valve core and the valve rod are connected with larger influences in the past, and even the valve core is inclined relative to the valve rod, so that the valve cannot be completely closed.

Disclosure of utility model

The utility model aims to provide an efficient water-saving water supply pipeline valve for constructional engineering.

In order to achieve the above object, the present utility model provides the following technical solutions:

The utility model provides a high-efficient water-saving water supply pipeline valve for building engineering, includes the valve body, the rigid coupling has the valve gap on the valve body, slidable mounting has the valve rod on the valve gap, and the valve core is installed to the one end that the valve rod is in the valve body in stretching into the valve body, has seted up the recess of adaptation case on the valve gap, and is provided with spacing subassembly on the valve gap, and spacing subassembly can restrict the case in the recess.

Above-mentioned water supply pipeline valve, the packing groove has been seted up in the outside of valve rod on the valve gap, and is fixed with gland on the valve gap, valve rod and gland screw-thread fit, and the hand wheel is installed to the upper end of valve rod.

Above-mentioned water supply pipe valve, spacing subassembly is including slidable mounting in the semicircle ring in the valve gap, and the inner wall of semicircle ring is provided with the second inclined plane, and semicircle ring and the axis parallel between them of valve rod, corresponds semicircle ring on the valve gap and is provided with first spring, and first spring maintains the relative position of semicircle ring and valve gap, has seted up the annular of cooperation semicircle ring on the case.

Above-mentioned water supply pipe valve, semicircle ring are provided with two sets of, and two semicircle rings symmetric distribution are in the both sides of valve rod, and two semicircle rings are greater than the degree of depth of annular along radial size of self.

Above-mentioned water supply pipeline valve, the upper end rigid coupling of valve rod has the adapter sleeve, and the middle part of valve rod runs through and is provided with the regulation pole, and the upper end and the hand wheel fixed connection of regulation pole are provided with the extrusion pole at the middle part of corresponding semicircle ring on the case, and extrusion pole and semicircle ring one-to-one set up, and the radial setting of valve rod is all followed to the extrusion pole, drives the extrusion pole when adjusting the pole and promotes semicircle ring and case separation.

Above-mentioned water supply pipeline valve adjusts the pole and includes the linkage segment that links to each other with the hand wheel and with extrusion pole complex regulation section, and first inclined plane has all been seted up to each extrusion pole one end that corresponds the regulation section, and first inclined plane corresponds with the border position of adjusting the pole, and the upper end of valve rod is fixed firmly the adapter sleeve, and the middle part of hand wheel is pegged graft in the adapter sleeve, and the part cover that the linkage segment is in the adapter sleeve is equipped with the second spring.

Above-mentioned water supply pipeline valve has seted up the notch on the regulation section, and the notch runs through along the radial of regulation section and sets up, and the notch extends to the one end that the regulation section kept away from the linkage segment, and the width of notch equals with the diameter of the round pin axle between valve rod and case both.

Above-mentioned water supply pipeline valve, the case includes the valve plate and seals up the pad, and the valve rod is connected with the valve plate, and the recess cooperatees with the upper portion of valve plate, seals up the outside cladding in the valve plate middle part, and seals up the pad and extend to valve plate and recess matched with surface.

Above-mentioned water supply pipeline valve, the valve gap is last to be provided with the rubber pad in the position of corresponding sealed pad.

The part of the water supply pipeline valve, which extends into the connecting sleeve, is provided with the clamping groove, and the positions of the connecting sleeve corresponding to the clamping groove are provided with the convex blocks which are matched with the clamping groove.

In the technical scheme, the semicircular ring capable of locking the valve core is arranged on the valve cover, and the groove matched with the valve core is formed in the valve cover, so that the valve core can be locked in the groove when the valve is in a completely opened state, the valve core and the valve rod are prevented from being damaged due to the impact of water flow on the valve core, and the valve core can be prevented from being inclined to cause the failure of complete closing of the valve.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a cross-sectional view of a valve according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1A according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the portion B in FIG. 1 according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of FIG. 2 at C according to an embodiment of the present utility model;

FIG. 5 is an enlarged schematic view of a semicircular ring according to an embodiment of the present utility model;

FIG. 6 is an enlarged schematic view of a cylindrical rod according to an embodiment of the present utility model;

Fig. 7 is a cross-sectional view showing a connection state of a valve body and a valve cover according to an embodiment of the present utility model.

Reference numerals illustrate:

1. Valve body, 11, water inlet cavity, 12, water outlet cavity, 13, valve hole, 2, valve cover, 21, groove, 22, packing groove, 23, packing gland, 24, rubber pad, 3, valve rod, 31, connecting sleeve, 311, bump, 32, adjusting rod, 321, connecting section, 322, adjusting section, 323, notch, 324, first spring, 4, valve core, 41, valve plate, 42, sealing pad, 43, ring groove, 44, extrusion rod, 441, first inclined plane, 5, limit component, 51, semicircle ring, 511, second inclined plane, 52, second spring, 53, guide rod, 6, hand wheel, 61, cylindrical rod, 62, clamping groove.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality of" means two or more, and the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and for example, they may be fixed, removable, or integrally connected, may be mechanically or electrically connected, and may be directly or indirectly connected via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-7, the efficient water-saving water supply pipeline valve for construction engineering provided by the embodiment of the utility model comprises a valve body 1, wherein a valve cover 2 is fixedly connected to the valve body 1, a valve rod 3 is slidably installed on the valve cover 2, one end of the valve rod 3 stretches into the valve body 1, a valve core 4 is installed at one end of the valve rod 3 in the valve body 1, a groove 21 for adapting to the valve core 4 is formed in the valve cover 2, a limiting component 5 is arranged on the valve cover 2, and the limiting component 5 can limit the valve core 4 in the groove 21.

A packing groove 22 is formed in the valve cover 2 on the outer side of the valve rod 3, a packing gland 23 is fixed on the valve cover 2, the valve rod 3 is in threaded fit with the packing gland 23, and a hand wheel 6 is mounted at the upper end of the valve rod 3.

Specifically, the valve body 1 and the valve cover 2 are connected into a whole through bolts to form a main body structure of the valve, a through hole is formed in the middle of the valve cover 2, the valve rod 3 extends into the valve body 1 from the through hole, one end of the valve rod 3 positioned in the valve body 1 is detachably connected with the valve core 4, the valve core 4 is connected with the valve rod 3 through a pin shaft, the valve body 1 is internally provided with a water inlet cavity 11 and a water outlet cavity 12 which are distributed up and down, as shown in fig. 1, the water inlet cavity 11 is positioned below the water outlet cavity 12 and communicated through the valve hole 13, in addition, a packing groove 22 is formed in the periphery of the valve cover 2 positioned on the valve rod 3, and a packing gland 23 is fixed on the upper part of the valve cover 2 through a screw, as shown in fig. 1, the valve rod 3 penetrates through the packing gland 23 and is in threaded connection with the packing gland, and in order to facilitate the rotation of the valve rod 3, a hand wheel 6 is arranged at the upper end of the valve rod 3, which is different from the prior art, a groove 21 is formed in the valve cover 2, the groove 21 is matched with the upper part of the valve core 4, namely one side of the valve core 4 connected with the valve rod 3, and the limiting component 5 is arranged on the valve cover 2, and the upper part of the valve cover 4 is limited in the groove 21, and the groove 21 is limited in the groove 21;

During use, the valve rod 3 is rotated by the hand wheel 6 to drive the valve core 4 to move along the axial direction of the valve rod 3, and the valve core 4 has a first position and a second position in the moving stroke:

when the valve is in the first position, the valve core 4 is inserted into the valve hole 13 to separate the water inlet cavity 11 from the water outlet cavity 12 in the valve body 1, and the valve is in a closed state;

when the valve is in the second position, the distance between the valve core 4 and the valve hole 13 is the largest, the valve is in a completely opened state, at this time, the upper part of the valve core 4 is positioned in the groove 21 on the valve cover 2, and when the valve is in the second position, the limiting component 5 can limit the valve core 4 in the groove 21, so that the valve core 4 is prevented from being inclined relative to the valve rod 3 due to water flow impact.

Optionally, as shown in fig. 2 and 5, the limiting component 5 includes a semicircular 51 slidingly installed in the valve cover 2, a second inclined plane 511 is provided on the inner wall of the semicircular 51, as shown in fig. 5, the second inclined plane 511 is provided on one side of the semicircular 51 facing the valve hole 13, and the semicircular 51 is parallel to the central axis of the valve rod 3, a positioning groove for accommodating the semicircular 51 is provided on the valve cover 2, the semicircular 51 can completely slide into the positioning groove, and the position of the semicircular 51 on the valve cover 2 is provided with a first spring 324, the outer wall of the semicircular 51 is fixedly connected with a guide rod 53, the guide rod 53 is radially arranged along the semicircular 51, and the central axis of the guide rod 53 coincides with the symmetrical axis of the semicircular 51, as shown in fig. 5, the first spring 324 is sleeved outside the guide rod 53, two ends of the first spring 324 are respectively contacted with the inner wall of the positioning groove and the semicircular 51, the first spring 324 can maintain the relative position of the semicircular 51 and the valve cover 2, when the first spring 324 is in a natural state, the semicircular 51 is positioned in the groove, the position corresponding to the semicircular 51 is positioned in the groove, the position of the valve cover 2, the semicircular groove is just outside the annular groove 4 is inclined to the second groove 4, the valve core 4 is prevented from being stretched out, and the valve core 4 is prevented from being stretched out of the annular groove 4, and the valve core 4 is completely extends out of the groove 4, and is prevented from the valve core 4, and is positioned in the position 4, and is positioned in the opposite to the groove 4, and is positioned 4, and is opposite to the position to the groove 4, and the valve core 4 is positioned to the position 4, and is positioned to the valve core 4, and the valve core is completely and the valve core is prevented from being positioned to the position and the valve core 4.

Preferably, the semicircle ring 51 is provided with two sets of, and the semicircle ring 51 is greater than the degree of depth of annular 43 along radial size of self, and two sets of semicircle ring 51 carry out spacingly by the left and right sides of valve rod 3 in the view of figure 1 to case 4, spacing effectual and comparatively comprehensive to, when semicircle ring 51 carries out spacingly to case 4, still part is in the standing groove, ensures semicircle ring 51 and valve gap 2 have sufficient area of contact, in the recess 21 of clamp valve core 4 on valve gap 2 through semicircle ring 51, realizes the stable restriction to case 4.

Further, the middle part of valve rod 3 runs through and is provided with adjusts pole 32, adjusts pole 32 along the axial setting of valve rod 3, and adjusts the upper end and hand wheel 6 fixed connection of pole 32, and the middle part that corresponds semicircle ring 51 on the case 4 is provided with extrusion pole 44, and extrusion pole 44 and semicircle ring 51 one-to-one set up, and extrusion pole 44 all along the radial setting of valve rod 3, order about extrusion pole 44 when adjusting pole 32 and promote semicircle ring 51 and case 4 separation.

Optionally, the adjusting rod 32 includes a connecting section 321 connected to the hand wheel 6 and an adjusting section 322 matched with the extruding rods 44, one end of each extruding rod 44 corresponding to the adjusting section 322 is provided with a first inclined plane 441, the first inclined plane 441 corresponds to the edge position of the adjusting rod 32, the upper end of the valve rod 3 is fixedly connected with the connecting sleeve 31, the middle part of the hand wheel 6 is inserted into the connecting sleeve 31, and a part of the connecting section 321 in the connecting sleeve 31 is sleeved with the second spring 52.

Preferably, the adjusting section 322 is provided with a notch 323, the notch 323 is penetrated and arranged along the radial direction of the adjusting section 322, the notch 323 extends to one end of the adjusting section 322 far away from the connecting section 321, and the width of the notch 323 is equal to the diameter of a pin shaft between the valve rod 3 and the valve core 4.

Specifically, as shown in fig. 1, the middle part of the hand wheel 6 protrudes into the connecting sleeve 31 to form a cylindrical rod 61, the adjusting rod 32 comprises a connecting section 321 and an adjusting section 322 which are connected with each other, wherein the upper end of the connecting section 321 penetrates into the connecting sleeve 31 and is connected with the cylindrical rod 61, the adjusting section 322 is positioned at the inner side of one end of the valve rod 3 connected with the valve core 4, the adjusting section 322 can extend outwards from one end of the valve rod 3 connected with the valve core 4, two ends of a second spring 52 arranged in the connecting sleeve 31 are respectively contacted with the cylindrical rod 61 and the inner wall of the connecting sleeve 31, when the second spring 52 is in a natural state, the extending part of the cylindrical rod 61 from the connecting sleeve 31 is longest, and at the moment, the adjusting section 322 is contracted into the valve rod 3; in addition, as shown in fig. 2, a first inclined surface 441 is formed at one end of the extrusion rod 44 corresponding to the adjusting section 322, when the semicircular ring 51 extends into the annular groove 43, the upper end of the first inclined surface 441 on the extrusion rod 44 corresponds to the edge position of the lower end of the adjusting section 322, so that when the adjusting section 322 is pushed by the connecting section 321 to extend into the valve core 4 from the valve rod 3, the adjusting section 322 can slide along the first inclined surface 441, and the extrusion rod 44 is pushed to move horizontally to the corresponding semicircular ring 51 in the view of fig. 2 by the first inclined surface 441, so that the semicircular ring 51 is pushed out from the annular groove 43, in addition, in order to ensure that the hand wheel 6 can smoothly drive the valve rod 3 to rotate after being pressed to the valve rod 3, the notch 323 is formed on the adjusting section 322 along the radial direction of the adjusting section 322, as shown in fig. 1 and 2, because the valve rod 3 is connected with the valve core 4 by the pin, the notch 323 is adjusted to be opposite to the pin before the hand wheel 6 is pressed, the pin is positioned in the notch 323 during the process of extending outwards from the valve rod 3, the valve core 4 can be mutually adjusted between the first position and the second position by driving the pin shaft to rotate through the adjusting section 322 and then driving the valve rod 3 to rotate through the pin shaft, when the pin shaft is not positioned in the groove 21, the connecting section 321 and the adjusting section 322 can only be driven to rotate in the valve rod 3 when the hand wheel 6 is rotated, and the valve rod 3 does not rotate, so that the valve is opened from a closed state or closed from an open state due to misoperation, particularly in the overhauling process, obviously, in order to facilitate that the notch 323 can be adjusted to be opposite to the pin shaft before the hand wheel 6 is pressed each time, marks are arranged on the hand wheel 6 and the valve rod 3, when the marks on the hand wheel 6 and the valve rod 3 correspond, the notch 323 is exactly opposite to the pin shaft, and the pin shaft can be moved to the inside of the notch 323 relative to the adjusting section 322 by directly pressing the hand wheel 6.

Still further, the valve core 4 includes a valve plate 41 and a gasket 42, the valve stem 3 is connected with the valve plate 41, the groove 21 is matched with the upper portion of the valve plate 41, the gasket 42 is coated on the outer side of the middle portion of the valve plate 41, and the gasket 42 extends to the surface of the valve plate 41 matched with the groove 21.

Specifically, the valve core 4 includes a valve plate 41 and a gasket 42, the valve stem 3 is connected with the valve plate 41 through a pin, and the groove 21 is matched with the upper portion of the valve plate 41, that is, when the valve core 4 is in the above second position, the upper portion of the valve plate 41 is located in the groove 21, the middle portion of the valve plate 41 is arranged in an outward protruding manner, as shown in fig. 1, when the valve core 4 is in the above first position, the lower portion of the valve plate 41 extends into the valve hole 13, and the protruding position of the middle portion of the valve plate 41 contacts with the edge position of the valve hole 13 corresponding to one end of the water outlet cavity 12, the gasket 42 is covered on the outer side of the protruding position of the valve plate 41 so as to facilitate the sealing effect of the valve plate 41 on the valve hole 13, and the gasket 42 extends to the surface of the valve plate 41 matched with the groove 21, that is, namely, the outer surface of the upper portion of the valve plate 41, as shown in fig. 3, so that when the valve core 4 is in the above second position, the valve core 42 can contact with the inner wall of the valve cover 2, the sealing at the groove 21 is sealed by the matching of the gasket 42, and when the valve plate 41 is subjected to the water pressure, the water pressure effect, the protruding position of the middle portion of the valve plate 41 is pressed to the valve plate 13, so that the gasket 42 can lift the sealing effect, and the sealing effect of the sealing structure, and the sealing effect of the sealing structure, and further, and the sealing effect is avoided.

Preferably, the valve cover 2 is provided with a rubber pad 24 corresponding to the sealing pad 42, and when the valve core 4 is in the second position, the sealing pad 42 is in contact with the rubber pad 24, so as to avoid excessive abrasion of the sealing pad 42 caused by synchronous rotation of the valve core 4 when the valve rod 3 rotates.

In another embodiment of the present utility model, the portion of the hand wheel 6 extending into the connecting sleeve 31 is provided with a clamping groove 62, and the position of the connecting sleeve 31 corresponding to the clamping groove 62 is provided with a protruding block 311, and the protruding block 311 is matched with the clamping groove 62.

In the embodiment, as shown in fig. 1 and 6, the hand wheel 6 is provided with the clamping groove 62, the clamping groove 62 is arranged at one end of the cylindrical rod 61 in the connecting sleeve 31, the position of the clamping groove 62 in the connecting sleeve 31 corresponding to the clamping groove 62 is provided with the protruding block 311, and the protruding block 311 can be mutually matched with the clamping groove 62, in the view of fig. 1, the clamping groove 62 in the hand wheel 6 is completely separated from the protruding block 311 in the connecting sleeve 31, at the moment, the hand wheel 6 rotates and can not drive the valve rod 3 to rotate, and when the hand wheel 6 is pressed down, the relative position of the adjusting section 322 and the pin is adjusted, so that the pin is positioned in the clamping groove 323, and meanwhile, the clamping groove 62 in the hand wheel 6 can be matched with the protruding block 311, thereby reducing the torsion deformation of the middle part of the pin 322 when the valve rod 3 is driven to rotate, and preventing the torsion of the clamping groove 62 is prevented.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. The utility model provides a high-efficient water-saving water supply pipeline valve for building engineering, includes the valve body, the rigid coupling has the valve gap on the valve body, slidable mounting has the valve rod on the valve gap, and the valve core is installed to the one end that the valve rod is in the valve body in stretching into the valve body, and the valve core is installed to the one end that the valve rod is in the valve body, its characterized in that has seted up the recess of adaptation case on the valve gap, and is provided with spacing subassembly on the valve gap, spacing subassembly can restrict the case in the recess.

2. A high efficiency water saving type water supply pipeline valve for construction engineering according to claim 1, wherein the valve cover is provided with a filler groove on the outer side of the valve rod, and the valve cover is fixed with a filler gland, the valve rod is in screw fit with the filler gland, and the upper end of the valve rod is provided with a hand wheel.

3. The efficient water-saving type water supply pipeline valve for constructional engineering according to claim 2, wherein the limiting component comprises a semicircular ring which is slidably mounted in the valve cover, the inner wall of the semicircular ring is provided with a second inclined plane, the central axes of the semicircular ring and the valve rod are parallel, a first spring is arranged on the valve cover corresponding to the semicircular ring, the first spring maintains the relative position of the semicircular ring and the valve cover, and a ring groove matched with the semicircular ring is formed in the valve core.

4. A high efficiency water saving type water supply pipeline valve for construction engineering according to claim 3, wherein two groups of semicircular rings are provided, the semicircular rings are symmetrically distributed on two sides of the valve rod, and the radial dimension of the semicircular rings is larger than the depth of the ring groove.

5. The efficient water-saving type water supply pipeline valve for constructional engineering according to claim 3, wherein the connecting sleeve is fixedly connected to the upper end of the valve rod, the middle part of the valve rod is provided with an adjusting rod in a penetrating mode, the upper end of the adjusting rod is fixedly connected with the hand wheel, the middle part of the valve core corresponding to the semicircular ring is provided with the extrusion rods, the extrusion rods are arranged in one-to-one correspondence with the semicircular ring, the extrusion rods are arranged along the radial direction of the valve rod, and the extrusion rods are driven to push the semicircular ring to be separated from the valve core when the adjusting rod moves downwards.

6. A high-efficiency water-saving type water supply pipeline valve for constructional engineering according to claim 5, wherein the adjusting rod comprises a connecting section connected with the hand wheel and an adjusting section matched with the extruding rods, one end of each extruding rod corresponding to the adjusting section is provided with a first inclined surface, the first inclined surface corresponds to the edge position of the adjusting rod, the upper end of the valve rod is fixedly connected with a connecting sleeve, the middle part of the hand wheel is inserted into the connecting sleeve, and the part of the connecting section positioned in the connecting sleeve is sleeved with a second spring.

7. A high efficiency water saving type water supply pipeline valve for construction engineering according to claim 6, wherein the adjusting section is provided with a notch, the notch is provided along the radial direction of the adjusting section, the notch extends to the end of the adjusting section far away from the connecting section, and the width of the notch is equal to the diameter of the pin shaft between the valve rod and the valve core.

8. A high efficiency water saving type water supply pipeline valve for construction engineering according to claim 5, wherein the valve core comprises a valve plate and a sealing pad, the valve rod is connected with the valve plate, the groove is matched with the upper part of the valve plate, the sealing pad is coated on the outer side of the middle part of the valve plate, and the sealing pad extends to the surface of the valve plate matched with the groove.

9. A high efficiency water saving type water supply pipeline valve for construction engineering according to claim 8, wherein rubber pads are arranged on the valve cover corresponding to the sealing gaskets.

10. A high-efficiency water-saving type water supply pipeline valve for constructional engineering as defined in claim 7, wherein the part of the hand wheel extending into the connecting sleeve is provided with clamping grooves, and the positions of the connecting sleeve corresponding to the clamping grooves are provided with protruding blocks which are matched with the clamping grooves.