CN219242668U

CN219242668U - Screw valve core structure

Info

Publication number: CN219242668U
Application number: CN202223378049.XU
Authority: CN
Inventors: 谢垂敏
Original assignee: Guangzhou Junchang Metal Plastic Products Co ltd
Current assignee: Guangzhou Junchang Metal Plastic Products Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-23
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a screw valve core structure, which comprises a handle, wherein the handle is connected with a valve rod, and a plug mounting part is arranged on the valve rod; the valve body is provided with an inner cavity, and the bottom and the side wall of the valve body are respectively provided with a water inlet hole and a water outlet hole; the plug mounting part of the valve rod extends into the valve body and is in threaded fit with the valve body; the top of the plug installation part is connected with a hard gasket through an elastic piece, and the gasket and the inner side of the water inlet hole of the valve body are oppositely arranged. According to the screw valve core structure provided by the utility model, when the faucet needs to be closed, the hard gasket is in axial contact with the inner side of the water inlet hole of the valve body and is tightly pressed, even if impurities exist in water, scratches are not easy to be caused on the gasket and the valve body, the tightness is good, and the service life is long.

Description

Screw valve core structure

Technical Field

The utility model relates to the field of faucet switches, in particular to a screw valve core structure.

Background

The tap switch can adjust the water yield of the tap by operating the rotation angle of the handle. The valve core of the current tap switch is basically realized by a ball valve. However, the ball valve and the valve body are sealed only through the sealing ring, once the sealing ring is aged, the problem of water leakage can occur, the difficulty of replacing the sealing ring is high, and the whole switch is generally directly replaced. In addition, to the tap switch of outdoor non-drinking water, because impurity is more in the quality of water, impurity granule is great, and impurity is in case getting into the valve body, because the sealing washer of traditional ball valve is the moving part, then impurity contact and embedding sealing washer easily, and the sealing washer appears the mar easily and damages even, leads to the switch sealed effect poor.

Disclosure of Invention

The utility model aims to provide a screw valve core structure, when a faucet needs to be closed, a hard gasket is in axial contact with the inner side of a water inlet hole of a valve body and is tightly pressed, even if impurities exist in water, scratches are not easy to be caused on the gasket and the valve body, the tightness is good, and the service life is long.

In order to achieve the above purpose, the utility model provides a screw valve core structure, which comprises a handle, wherein the handle is connected with a valve rod, and a plug mounting part is arranged on the valve rod; the valve body is provided with an inner cavity, and the bottom and the side wall of the valve body are respectively provided with a water inlet hole and a water outlet hole; the plug mounting part of the valve rod extends into the valve body and is in threaded fit with the valve body; the top of the plug installation part is connected with a hard gasket through an elastic piece, and the gasket and the inner side of the water inlet hole of the valve body are oppositely arranged.

As a further improvement of the utility model, the top end of the plug installation part is provided with a first guide groove extending into the inner side of the plug installation part; one side of the gasket is connected with a guide rod; the guide rod stretches into the first guide groove and is in sliding fit with the first guide groove; the guide rod is provided with a second guide groove; one end of the elastic piece is positioned in the second guide groove, and the other end of the elastic piece is positioned in the first guide groove.

As a further improvement of the utility model, the valve rod, the plug mounting part, the guide rod, the gasket and the water inlet hole are positioned on the same straight line.

As a further improvement of the utility model, the outer side wall of the plug installation part is provided with a first double external thread, the inner wall of the valve body is provided with a second double internal thread, and the first double external thread is matched with the second double internal thread; the thread forms of the first double external threads and the second double internal threads are trapezoidal.

As a further improvement of the utility model, the side wall of the valve body is provided with at least two water outlet holes, and each water outlet hole is arranged around the central line of the valve body.

As a further improvement of the utility model, the outer wall of the valve body is provided with positioning teeth.

As a further improvement of the utility model, an annular boss is arranged at the bottom of the valve body corresponding to the outer edge of the water inlet hole, and a sealing ring is sleeved outside the annular boss.

As a further improvement of the utility model, the valve body and the gasket are made of brass.

Advantageous effects

Compared with the prior art, the screw valve core structure has the advantages that:

1. when the faucet needs to be opened, the handle is screwed, the gasket leaves the inner side of the water inlet hole of the valve body, and the water body sequentially passes through the water inlet hole, the inner cavity of the valve body and the water outlet hole and then flows out of the faucet. When the faucet needs to be closed, the handle is screwed, so that the gasket moves along the axial direction and is pressed on the inner side of the water inlet hole of the gasket and the valve body, the elastic piece is gradually compressed, and the pressure of the gasket on the edge of the water inlet hole is gradually increased. In the process, the hard gasket and the valve body basically do not rotate relatively, a movable sealing ring is not needed between the hard gasket and the valve body, the sealing ring is prevented from being damaged by impurities in the water body, scratches are not easy to occur between the gasket and the valve body, the sealing effect is good, and the service life is long.

2. The gasket is in axial and circumferential sliding fit with the plug mounting part through the guide rod, so that inclination is avoided when the gasket moves, and the tightness of the screw valve core structure when the screw valve core structure is closed is ensured.

3. Valve rod, end cap installation department, guide bar, gasket and inlet opening five are located same straight line, and the gasket is difficult to appear the slope when pressing on the inlet opening, ensures the leakproofness when screw rod case structure closes.

4. The plug installation part is connected with the valve body in a trapezoidal double-thread fit manner through the thread teeth, so that an anti-loosening effect can be achieved.

5. The outer wall of the valve body is provided with positioning teeth, when the valve body is inserted into the valve sleeve of the faucet, the teeth on the inner wall of the valve sleeve are matched with the positioning teeth on the outer wall of the valve body, and the valve body can be prevented from rotating along with the rotation of the handle.

The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a screw spool structure;

FIG. 2 is a front view of the screw core structure mated with the nut;

fig. 3 is an internal structural view of the screw spool structure.

Detailed Description

Embodiments of the present utility model will now be described with reference to the accompanying drawings.

Examples

The specific embodiment of the utility model is shown in fig. 1 to 3, and the screw valve core structure comprises a handle 9, wherein the handle 9 is connected with a valve rod 4, and a plug mounting part 5 is arranged on the valve rod 4. The valve further comprises a valve body 1 provided with an inner cavity 11, and a water inlet hole 2 and a water outlet hole 3 are respectively arranged at the bottom and the side wall of the valve body 1. The plug mounting part 5 of the valve rod 4 extends into the valve body 1 and is in threaded fit with the valve body. The top of the plug installation part 5 is connected with a hard gasket 7 through an elastic piece 8, and the gasket 7 is arranged opposite to the inner side of the water inlet hole 2 of the valve body 1. Wherein, valve body 1, gasket 7 and valve rod 4 are all brass material.

The top end of the plug mounting portion 5 is provided with a first guide groove 51 extending into the inside thereof. A guide rod 71 is connected to one side of the spacer 7. The guide rod 71 extends into the first guide groove 51 and the guide rod and the first guide groove are in sliding fit. The guide bar 71 is provided with a second guide groove 711. One end of the elastic member 8 is positioned in the second guide groove 711, and the other end is positioned in the first guide groove 51. In this embodiment, the cross sections of the guide bar 71, the first guide groove 51, and the second guide groove 711 are all circular.

The valve rod 4, the plug mounting part 5, the guide rod 71, the gasket 7 and the water inlet hole 2 are positioned on the same straight line.

The outer side wall of the plug installation part 5 is provided with a first double external thread 6, the inner wall of the valve body 1 is provided with a second double internal thread 12, and the first double external thread 6 is matched with the second double internal thread 12. The thread forms of the first double external thread 6 and the second double internal thread 12 are trapezoidal.

The side wall of the valve body 1 is provided with at least two water outlet holes 3, and each water outlet hole 3 is arranged around the central line of the valve body 1.

The outer wall of the valve body 1 is provided with positioning teeth 13.

An annular boss 14 is arranged at the bottom of the valve body 1 corresponding to the outer edge of the water inlet hole 2, and a sealing ring 15 is sleeved outside the annular boss 14.

The valve seat of the screw valve core structure is integrally plugged into the valve sleeve of the water tap, and teeth on the inner wall of the valve sleeve are in clamping fit with the positioning teeth 13 on the outer wall of the valve body, so that the valve body 1 can be prevented from rotating along with the rotation of the handle 9. The valve rod 4 is movably penetrated with a screw cap 16, and the internal thread of the screw cap 16 is connected with the external thread of the end part of the tap valve sleeve. The water inlet at the bottom of the valve sleeve is arranged opposite to the water inlet hole 2 at the bottom of the valve body 1, and the sealing ring 15 on the annular boss 14 of the valve body 1 is pressed on the edge of the water inlet of the valve sleeve to realize sealing. One side of the valve sleeve of the tap is provided with a water outlet corresponding to the outer side wall of the valve body 1, and the water outlet is connected with a water outlet pipe. After the gasket 7 is far away from the water inlet hole 2 by screwing the handle 9, water passes through the water inlet hole 2 from the water inlet of the valve sleeve and enters the valve body 1, and then sequentially passes through the water outlet hole 3 and the water outlet pipe and flows out.

The utility model has been described in connection with the preferred embodiments, but the utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. The screw valve core structure comprises a handle (9), and is characterized in that the handle (9) is connected with a valve rod (4), and a plug mounting part (5) is arranged on the valve rod (4); the water inlet valve further comprises a valve body (1) provided with an inner cavity (11), and a water inlet hole (2) and a water outlet hole (3) are respectively arranged at the bottom and the side wall of the valve body (1); the plug mounting part (5) of the valve rod (4) stretches into the valve body (1) and is in threaded fit with the valve body; the top end of the plug installation part (5) is connected with a hard gasket (7) through an elastic piece (8), and the gasket (7) is oppositely arranged with the inner side of the water inlet hole (2) of the valve body (1).

2. The screw valve core structure according to claim 1, wherein the top end of the plug mounting portion (5) is provided with a first guide groove (51) extending into the inside thereof; one side of the gasket (7) is connected with a guide rod (71); the guide rod (71) stretches into the first guide groove (51) and is in sliding fit with the first guide groove; the guide rod (71) is provided with a second guide groove (711); one end of the elastic piece (8) is positioned in the second guide groove (711), and the other end of the elastic piece is positioned in the first guide groove (51).

3. The screw valve core structure according to claim 2, wherein the valve rod (4), the plug mounting portion (5), the guide rod (71), the gasket (7) and the water inlet (2) are positioned on the same straight line.

4. The screw valve core structure according to claim 1, wherein the outer side wall of the plug mounting portion (5) is provided with a first double external thread (6), the inner wall of the valve body (1) is provided with a second double internal thread (12), and the first double external thread (6) is matched with the second double internal thread (12); the thread forms of the first double external thread (6) and the second double internal thread (12) are trapezoidal.

5. A screw valve core structure according to claim 1, characterized in that the side wall of the valve body (1) is provided with at least two water outlet holes (3), each water outlet hole (3) being arranged around the centre line of the valve body (1).

6. A screw valve core structure according to claim 1, characterized in that the outer wall of the valve body (1) is provided with positioning teeth (13).

7. The screw valve core structure according to claim 1, wherein an annular boss (14) is arranged at the outer edge of the bottom of the valve body (1) corresponding to the water inlet hole (2), and a sealing ring (15) is sleeved outside the annular boss (14).

8. A screw valve core structure according to claim 1, characterized in that the valve body (1) and the gasket (7) are both made of brass.