CN211821199U

CN211821199U - Water tap rotary joint

Info

Publication number: CN211821199U
Application number: CN201921910039.1U
Authority: CN
Inventors: 洪荣东; 洪扁东; 洪文强; 张孝喜
Original assignee: Quanzhou Liweisi Precision Hardware Co ltd
Current assignee: Quanzhou Liweisi Precision Hardware Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-10-30
Anticipated expiration: 2029-11-07

Abstract

The utility model provides a rotary joint of a water tap, which comprises an inner core, a rotary sleeve and a limit ring, wherein the rotary sleeve is sleeved with an outer sealing ring, and the inner core is sleeved with an inner sealing ring; the outer wall of the rotary sleeve is provided with an outer sealing groove used for installing an outer sealing ring, the inner wall of the rotary sleeve is provided with an inner sealing groove used for installing an inner sealing ring, and the outer sealing groove and the inner sealing groove are arranged in a staggered mode in the axial direction of the rotary sleeve. The utility model discloses a core innovation point lies in: the utility model discloses avoided at the surface fluting of inner core, made the wall thickness of inner core accomplish finest under the situation of guaranteeing basic structure intensity, and with interior seal structure through staggering the mode formation of stepping down inboard at the swivel nut, from this, to the inner core, can be under the circumstances of guaranteeing the water cross-section size, wholly reduce whole rotary joint's volume to improve the compactedness of product.

Description

Water tap rotary joint

Technical Field

The utility model relates to a tap connects technical field, concretely relates to tap rotary joint.

Background

The tap that kitchen vegetable washing basin used, generally all include leading main part, the valve, connect and the outlet pipe, the valve is used for controlling whole tap and is in off-state and play water state, leading main part links to each other with the outlet pipe through connecting, because the outlet pipe need be according to the actual water condition and the different position of orientation, aim at the direction that needs the water with the delivery port when washing vegetables, consequently, the outlet pipe need be rotatable state, consequently, tap joint design generally includes inner core and swivel housing, be connected through the rotation of swivel housing with the inner core, guarantee the rotational relation of tap main part and outlet pipe.

Along with the continuous improvement of living standard, people increasingly demand exquisite, pleasing to the eye tap product, this also requires the tap product to develop toward miniaturization, and the tap connects and also needs to reduce the volume gradually, but the tap connects product on the market can't reduce the volume again, for example chinese utility model patent 201820175805.3 discloses an improved generation tap connects, it installs the outer seal ring at the fluting on the swivel sleeve, at epaxial fluting installation inner seal ring, if miniaturize the product, just need attenuate centraxonial wall thickness, in case attenuate centraxonial wall thickness, offer the seal groove again, will lead to the centraxonial fracture, the development of tap volume minification is just restricted to this kind of joint design of current.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above weak point, provide one kind and guaranteeing under the unchangeable prerequisite of water yield, the whole volume of reducible joint can also guarantee the tap rotary joint of joint design intensity.

The utility model provides a scheme that technical problem adopted is: a faucet rotary joint comprises an inner core, a rotary sleeve and a limiting ring, wherein a through hole for rotatably mounting the inner core is formed in the rotary sleeve, a limiting step protruding outwards in the radial direction is arranged on the lower side of the inner core, the limiting ring is arranged on the upper side of the inner core and matched with the limiting step to rotatably mount the rotary sleeve on the inner core, an outer sealing ring is sleeved on the rotary sleeve, and an inner sealing ring is sleeved on the inner core; the outer wall of the rotary sleeve is provided with an outer sealing groove used for installing an outer sealing ring, the inner wall of the rotary sleeve is provided with an inner sealing groove used for installing an inner sealing ring, and the outer sealing groove and the inner sealing groove are arranged in a staggered mode in the axial direction of the rotary sleeve.

Furthermore, the outer sealing groove and the inner sealing groove are arranged in a staggered manner in order to facilitate processing of the inner sealing groove; the inner wall of the top end of the rotary sleeve is provided with a step hole with an inner diameter larger than that of the middle through hole so as to form an inner sealing groove, and the outer sealing groove is located below the inner sealing groove.

Further, in order to ensure the sealing performance; the outer sealing ring and the inner sealing ring are O-shaped rings.

Further, in order to increase the water flow rate; the inner core is internally provided with a water flowing hole, and the inner diameter of the middle part of the water flowing hole is smaller than the inner diameters of the upper side and the lower side of the water flowing hole so that the water flowing hole is in a throat structure.

Further, in order to install the rotating sleeve on the inner core, the rotating sleeve is prevented from falling off from the inner core; the limiting ring is a C-shaped clamping ring, and a clamping groove for mounting the C-shaped clamping ring is formed in the top of the inner core.

Further, in order to install the rotating sleeve on the inner core, the rotating sleeve is prevented from falling off from the inner core; the upper end of the inner core is provided with an extension part protruding out of the upper end surface of the rotating sleeve, and the limiting ring is formed by stamping and outwards turning the extension part; in order to ensure that the extension can only be turned outwards, not inwards, under the stamping, the extension is of a reverse taper such that the extension has a tendency to turn outwards under the stamping.

Compare prior art, the utility model has the advantages of it is following: the utility model discloses a core innovation point lies in: the utility model avoids slotting on the outer surface of the inner core, so that the wall thickness of the inner core is thinnest under the condition of ensuring the strength of the basic structure, and the inner sealing structure is formed inside the rotary sleeve in a staggered abdicating mode, therefore, for the inner core, the volume of the whole rotary joint can be integrally reduced under the condition of ensuring that the size of the water outlet section is not changed, thereby improving the compactness of the product; specifically, the utility model discloses a fluting and installation external seal circle and inner seal circle are sheathe in to rotatory to the setting of staggering in rotatory cover axial direction of external seal groove and inner seal groove, only can exist one in external seal groove and the inner seal groove on the rotatory cover of a certain height, the wall thickness intensity of rotatory cover has been guaranteed, both realized the minification design of connecting the horizontal volume of product, can guarantee the structural strength of product again, thereby avoid traditional joint product fluting installation sealing circle on the inner core, must guarantee the inner core wall thickness and can't reduce the drawback of inner core volume.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of a structure in which the extension part is not punched.

In the figure: 1-a limit ring; 2-inner core; 201-an extension; 202-water flow holes; 203-limit step; 204-card slot; 3-inner sealing ring; 4-an outer sealing ring; 5-rotating the sleeve; 501-inner seal groove; 502-outer seal groove.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples:

example (b): as shown in fig. 1-2, the present embodiment provides a faucet swivel joint, which includes an inner core 2, a swivel sleeve 5 and a limiting ring 1, wherein a through hole for rotatably mounting the inner core 2 is formed in the swivel sleeve 5, a limiting step 203 protruding radially outward is formed on a lower side of the inner core 2, the limiting ring 1 is arranged on an upper side of the inner core 2 and is matched with the limiting step 203 to rotatably mount the swivel sleeve 5 on the inner core 2, an outer sealing ring 4 is sleeved on the swivel sleeve 5, and an inner sealing ring 3 is sleeved on the inner core; the outer sealing groove 502 used for installing the outer sealing ring 4 is arranged on the outer wall of the rotary sleeve 5, the inner sealing groove 501 used for installing the inner sealing ring 3 is arranged on the inner wall of the rotary sleeve 5, and the outer sealing groove 502 and the inner sealing groove 501 are arranged in the rotary sleeve in a staggered mode in the axial direction.

In the present embodiment, in order to facilitate machining of the inner seal groove 501, the outer seal groove 502 and the inner seal groove 501 are arranged in a staggered manner; the inner wall of the top end of the rotating sleeve 5 is provided with a stepped hole with an inner diameter larger than that of the middle through hole so as to form an inner sealing groove 501, the inner sealing groove 501 is an L-shaped groove, and the outer sealing groove 502 is located below the inner sealing groove 501.

In the present embodiment, in order to ensure the sealing property; the outer sealing ring 4 and the inner sealing ring 3 are both O-shaped rings.

In the present embodiment, in order to increase the water flow rate; a water flowing hole 202 is arranged in the inner core 2, and the inner diameter of the middle part of the water flowing hole 202 is smaller than the inner diameters of the upper side and the lower side of the water flowing hole 202, so that the water flowing hole 202 is in a throat structure.

In the present embodiment, in order to mount the rotary sleeve 5 on the core 2, the rotary sleeve 5 is prevented from falling off from the core 2; the limiting ring 1 is a C-shaped clamping ring, and a clamping groove 204 used for mounting the C-shaped clamping ring is formed in the top of the inner core 2.

In the present embodiment, in order to mount the rotary sleeve 5 on the core 2, the rotary sleeve 5 is prevented from falling off from the core 2, and in order to ensure that the extension 201 can only be turned outwards under punching, and cannot be turned inwards; the upper end of the inner core 2 is provided with an extension part 201 protruding out of the upper end surface of the rotating sleeve 5, and the limiting ring 1 is formed by stamping and outwards turning the extension part 201; the extension 201 is reverse tapered so that the extension 201 has a tendency to evert under the punch.

The utility model discloses a core innovation point lies in: the utility model avoids slotting on the outer surface of the inner core 2, so that the wall thickness of the inner core 2 is thinnest under the condition of ensuring the strength of the basic structure, and the inner sealing structure is formed inside the rotary sleeve 5 in a staggered abdicating mode, therefore, for the inner core 2, the volume of the whole rotary joint can be integrally reduced under the condition of ensuring the size of the water outlet section, thereby improving the compactness of the product; specifically, the utility model discloses a fluting and installation external seal circle 4 and inner seal circle 3 on swivel mount 5 to the setting of staggering in 5 axial of swivel mount 502 and inner seal groove 501, only can exist one in external seal groove 502 and the inner seal groove 501 on swivel mount 5 on a certain height, the wall thickness intensity of swivel mount 5 has been guaranteed, both realized the minification design that connects the horizontal volume of product, can guarantee the structural strength of product again, thereby avoid traditional joint product fluting installation sealing washer on the inner core, must guarantee the inner core wall thickness and can't reduce the drawback of inner core volume.

The above only is the embodiment of the present invention, and not therefore the scope of the patent protection of the utility model, all utilize the equivalent structure or equivalent flow transformation made by the contents of the specification and the drawings, or directly or indirectly use in other related technical fields, all including in the same way the scope of the patent protection of the present invention.

Claims

1. A faucet rotary joint comprises an inner core, a rotary sleeve and a limiting ring, wherein a through hole for rotatably mounting the inner core is formed in the rotary sleeve, a limiting step protruding outwards in the radial direction is arranged on the lower side of the inner core, the limiting ring is arranged on the upper side of the inner core and matched with the limiting step to rotatably mount the rotary sleeve on the inner core, an outer sealing ring is sleeved on the rotary sleeve, and an inner sealing ring is sleeved on the inner core; the method is characterized in that: the outer wall of the rotary sleeve is provided with an outer sealing groove used for installing an outer sealing ring, the inner wall of the rotary sleeve is provided with an inner sealing groove used for installing an inner sealing ring, and the outer sealing groove and the inner sealing groove are arranged in a staggered mode in the axial direction of the rotary sleeve.

2. A faucet swivel joint as defined in claim 1, wherein: the inner wall of the top end of the rotary sleeve is provided with a step hole with an inner diameter larger than that of the middle through hole so as to form an inner sealing groove, and the outer sealing groove is located below the inner sealing groove.

3. A faucet swivel joint as defined in claim 1, wherein: the outer sealing ring and the inner sealing ring are O-shaped rings.

4. A faucet swivel joint as defined in claim 1, wherein: the inner core is internally provided with a water flowing hole, and the inner diameter of the middle part of the water flowing hole is smaller than the inner diameters of the upper side and the lower side of the water flowing hole so that the water flowing hole is in a throat structure.

5. A faucet swivel joint as defined in claim 1, wherein: the limiting ring is a C-shaped clamping ring, and a clamping groove for mounting the C-shaped clamping ring is formed in the top of the inner core.

6. A faucet swivel joint as defined in claim 1, wherein: the upper end of the inner core is provided with an extension part protruding out of the upper end surface of the rotating sleeve, the limiting ring is formed by stamping and turning outwards the extension part, and the extension part is inverted cone-shaped so that the extension part has a turning outwards trend under stamping.