Rotary joint with positioning function

Abstract

The rotary joint with the positioning function comprises an outer sleeve body and an inner sleeve body, the first end of the inner sleeve body is located in the outer sleeve body, the second end of the inner sleeve body is located outside the first end of the outer sleeve body, and the inner sleeve body is sleeved with a translation pad which is located in the outer sleeve body and can translate in the axial direction of the outer sleeve body. The translation pad and the inner sleeve body are meshed, overlapped and matched through a tooth structure, the translation pad and the outer sleeve body are provided with an axial translation driving structure which drives the translation pad to do axial translation along the outer sleeve body to be separated from the inner sleeve body along with rotation of the inner sleeve body, and a return piece is arranged in the outer sleeve body. Compared with the prior art, after the rotary joint and the faucet rotate by an angle in the circumferential direction, the water outlet end of the faucet is fixedly matched at an angle through the constant meshing effect of the translation pad and the inner sleeve body, the rotation angle is fixed through a mechanical structure, stability is achieved, it can be guaranteed that the angle is kept in a fixed state after the faucet rotates for a long time, and use is stable; meanwhile, the whole structure is simple and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tap, especially a rotating joint with positioning function. BACKGROUND

[0002] The water faucet is a kind of sanitary ware in our daily life, and the existing water faucet outlet can only be rotated in horizontal direction at a small angle, the water faucet outlet direction is arranged to basin, and only container or hand can be used to take water when drinking, which is very inconvenient, and water can only be held by hand when washing face, and water cannot be directly sprayed on face. For this reason, the water faucet that can swing in up-down direction appears on the market, such as the water faucet that can be rotated at multiple angles disclosed in CN220566670U on March 8, 2024, which comprises a first sleeve, a water blocking ring is integrally formed at the bottom of the first sleeve, a mixing valve is fixed in the middle of the first sleeve, a handle is detachably connected and fixed outside the mixing valve, a first rotating core is fixed in the first sleeve through thread connection, a first rotating seat is rotatably installed on the first rotating core, a second sleeve is integrally formed on one side of the first rotating seat, a second rotating core is rotatably installed in the second sleeve, a swing arm is fixed at the end of the second rotating core through thread connection, a third sleeve is integrally formed above the swing arm, a third rotating core is fixed in the third sleeve through thread connection, a second rotating seat is rotatably installed at the other end of the third rotating core, the second rotating seat is a right angle, and a multifunctional water outlet nozzle is installed at the end of the second rotating seat away from the third sleeve through thread connection. This kind of water faucet realizes up-down swing adjustment by the sleeve of the second rotating core and the first rotating seat on the swing arm, but when the swing arm is adjusted to a certain angle and needs to be fixed, it is realized by the friction between the sealing ring on the second rotating core and the first rotating seat. At the same time, the rotation angle of the existing basin faucet is also fixed by the friction between the sealing ring and the water outlet end. After long-term use, the friction between the sealing ring and the water faucet will be invalid, so that the water faucet cannot be fixed after rotation.

[0003] Therefore, the present inventors have conducted in-depth research on the above problems, and thus the present application is produced. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a rotating joint with positioning function to solve the problem that the existing water faucet that can rotate and adjust the water outlet angle cannot guarantee the fixed state of the rotation angle after long-term use.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a rotary joint with positioning function, including the outer sleeve body and the inner sleeve body, the first end of the inner sleeve body is in the outer sleeve body, and the second end of the inner sleeve body is outside the first end of the outer sleeve body and can be sealed with the faucet sleeve, the inner sleeve body is equipped with the translation pad in the outer sleeve body and can be translated along the axial direction of the outer sleeve body, the translation pad and the inner sleeve body are engaged with each other through the tooth structure, the translation pad is equipped with the axial translation drive structure on the outer sleeve body and is driven to translate along the outer sleeve body and separate from the inner sleeve body with the rotation of the inner sleeve body, and the outer sleeve body is equipped with the restoring member that generates the elastic restoring force with the translation of the translation pad away from the inner sleeve body.

[0006] The inner sleeve body and the outer sleeve body are both cylindrical structures, and a closed loop groove is concave on the outer side wall of the outer sleeve body, and a sealing ring for mounting the faucet is embedded in the closed loop groove.

[0007] The inner sleeve body has a reduced diameter section and an expanded diameter section, the reduced diameter section is in the outer sleeve body and is in sealed cooperation with the outer sleeve body, the expanded diameter section is outside the outer sleeve body and is in cooperation with the end face of the first end of the outer sleeve body, a groove in a closed loop structure is concave on the outer side wall of the expanded diameter section, and a sealing ring for sealed cooperation with the faucet is embedded in the groove, a sleeve tightening boss in a polyhedral structure is convex on the outer side wall of the reduced diameter section and is stacked on the end face of the expanded diameter section, a sleeve tightening block matched with the polyhedral structure is sleeved on the sleeve tightening boss, and the sleeve tightening block and the translation pad are engaged and stacked through the tooth structure.

[0008] One side of the sleeve tightening block facing the translation pad is concave with a plurality of concave arc through grooves penetrating along the radial direction of the sleeve tightening block, the concave arc through grooves are distributed along the circumferential direction of the sleeve tightening block at intervals, and a plurality of arc convex strips corresponding to the concave arc through grooves are convex on one side of the translation pad facing the sleeve tightening block, and the arc convex strips and the concave arc through grooves constitute the tooth structure.

[0009] A convex column is convex on the outer side wall of the translation pad, a guide groove for the convex column to slide in is formed at the first end of the outer sleeve body, the guide groove has two inclined grooves, the two inclined grooves are connected, the first ends of the two inclined grooves are connected closely, the second ends of the two inclined grooves are inclined and extended away from the first end of the outer sleeve body, and a breaking groove extending to the second end of the outer sleeve body is formed at the end of the first end of the outer sleeve body.

[0010] The two convex columns are arranged oppositely, the guide groove is correspondingly provided with two guide grooves, and the breaking groove is provided with a plurality of breaking grooves distributed at intervals.

[0011] The restoring member is a spring.

[0012] The hollow cavity of the outer sleeve body has a reduced-diameter cavity and an expanded-diameter cavity, a step surface is formed in the outer sleeve body at the reduced-diameter cavity and the expanded-diameter cavity, the translation pad, the sleeve block and the restoring member are located in the expanded-diameter cavity, and the spring is tensioned between the step surface and the translation pad.

[0013] With the technical scheme, the rotary joint with the positioning function is applied to the faucet with the swing arm, the outer sleeve body is sleeved in the seat body of the faucet and fixedly connected with the faucet seat body, the second end of the inner sleeve body extends into the swing arm and is fixedly connected with the swing arm of the faucet. In application, the swing arm is rotated, the swing arm and the inner sleeve body are rotated together, the rotation of the inner sleeve body drives the translation pad to translate along the axial direction of the outer sleeve body through the axial translation driving structure, the translation pad is disengaged from the inner sleeve body, the restoring member generates the restoring force along with the movement of the translation pad, the restoring force of the restoring member is released when the translation pad cannot translate axially on the outer sleeve body along with the rotation of the inner sleeve body, the translation pad is reset, the translation pad and the inner sleeve body are engaged through the tooth structure again, the inner sleeve body cannot rotate under the action of the external force, and thus the swing arm is kept in the fixed state. When the angle needs to be adjusted again, the swing arm can be fixed at another angle by rotating the inner sleeve body again. Compared with the prior art, when the rotary joint is installed on the faucet and used, the faucet is fixed at an angle through the engagement between the translation pad and the inner sleeve body after the faucet is rotated at an angle, the rotary angle is fixed by using the mechanical structure, the faucet is stable, the angle of the faucet can be kept fixed after the faucet is rotated for a long time, the use is stable, and the whole structure is simple and convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a perspective view of the utility model;

[0015] Fig. 2 is a perspective exploded view of the utility model;

[0016] Fig. 3 is another perspective view of the utility model. DETAILED DESCRIPTION

[0017] In order to further explain the technical scheme of the utility model, the following will be described in detail in combination with the drawings.

[0018] The rotary joint with the positioning function of the utility model is applied to the faucet with the swing arm, the outer sleeve body is sleeved in the seat body of the faucet and fixedly connected with the faucet seat body, the second end of the inner sleeve body extends into the swing arm and is fixedly connected with the swing arm of the faucet. Figs. 1-3As shown, it comprises an outer sleeve 1 and an inner sleeve 2, both of which are hollow cylindrical structures with both ends open. The axial direction of the outer sleeve 1 and the inner sleeve 2 is the up-down direction. The upper end of the inner sleeve 2 is in the outer sleeve 1, and the lower end of the inner sleeve 2 is outside the lower end of the outer sleeve 1 and can be sealed and matched with the faucet sleeve. For example, with a faucet with a swing arm, a sealing ring is provided on the outer end of the inner sleeve 2 to tightly match the swing arm. The outer sleeve 2 is provided with a translation pad 3 inside the outer sleeve 1 and can translate along the axial direction of the outer sleeve 1. The translation pad 3 is engaged and stacked with the inner sleeve 2 through a tooth structure. The translation pad 3 is provided with an axial translation driving structure on the outer sleeve 1, which drives the translation pad 3 to translate axially along the outer sleeve 1 and separate from the inner sleeve 2 when the inner sleeve 2 rotates. A restoring member 4 is provided in the outer sleeve 1, which generates an elastic restoring force when the translation pad 3 moves away from the inner sleeve 2. The restoring member 4 is a spring.

[0019] Preferably, a closed-loop groove 11 is recessed on the outer side wall of the outer sleeve 1, and a sealing ring (not shown in the figure) for mounting with the faucet is embedded in the closed-loop groove. A locking groove 12 is recessed on the outer side wall of the outer sleeve 1 for locking the faucet. In use, the upper end of the outer sleeve 1 is sleeved into the seat body of the faucet with a water inlet end (i.e. the water outlet end matched with the swing arm) for sleeving and sealing cooperation through the sealing ring. After sleeving, the outer sleeve 1 is locked together with the faucet through a locking member (such as a tightening bolt). This structure is the existing technology.

[0020] The inner sleeve 2 has a reduced diameter section 21 and an expanded diameter section 22. The reduced diameter section 21 is in the outer sleeve 1 and is sealed and matched with the outer sleeve 1. The sealing and matching is achieved by a sealing ring sleeved on the reduced diameter section 21 and the outer sleeve. The expanded diameter section 22 is outside the outer sleeve 1 and is stacked with the first end face (i.e. the lower end face) of the outer sleeve 1. That is, the outer sleeve is stacked on the expanded diameter section 22. A recess 221 in a closed-loop structure is recessed on the outer side wall of the expanded diameter section 22. A sealing ring (not shown in the figure) for sealing and matching with the swing arm of the faucet is embedded in the recess 221. A sleeve tightening boss 211 is protruded on the outer side wall of the lower end of the reduced diameter section 21 and is stacked on the end face of the expanded diameter section 22. The sleeve tightening boss 211 is a polyhedral structure, preferably a hexahedral structure. A sleeve tightening block 5 is sleeved on the sleeve tightening boss 211, which matches the polyhedral structure. The sleeve tightening block 5 is a circular block body, and the inner hole wall of the circular block body corresponds to a hexahedral structure. The sleeve tightening block and the sleeve tightening boss are matched in a multi-surface manner to prevent the sleeve block from rotating and to synchronize the movement of the sleeve block with the inner sleeve. The sleeve tightening block 5 is engaged and stacked with the translation pad 3 through the tooth structure.

[0021] Preferably, the one side of the tightening block 5 (i.e. the upper end surface of the tightening block 5) facing the translation pad 3 is concave with a plurality of concave arc grooves 51 penetrating in the radial direction of the tightening block, each of the concave arc grooves is distributed around the circumference of the tightening block, the concave arc groove 51 is an arc-shaped groove close to a semicircle, and the one side of the translation pad 3 (i.e. the lower bottom surface of the translation pad 3) facing the tightening block 5 is convex with a plurality of arc-shaped protrusions 31 corresponding to the concave arc grooves 51, each arc-shaped groove and each arc-shaped protrusion form the tooth structure, and when the tightening block 5 rotates together with the lower sleeve 2, the tooth structure with concave-convex cooperation makes the translation pad 3 rotate correspondingly and makes the rotation more smooth by the arc shape.

[0022] The outer side wall of the translation pad 3 is convex with a convex column 32, preferably two convex columns 32 are arranged transversely opposite to each other, and the convex column 32 is preferably a cylindrical column arranged horizontally, and the first end of the outer sleeve 1 is provided with a guide groove 12 for the convex column to slide in, the guide groove 12 has two inclined grooves connected to each other, the first ends of the two inclined grooves are connected closely, the second ends of the two inclined grooves are inclined to extend away from the first end of the outer sleeve, i.e. the two inclined grooves are arranged obliquely upward, and the two inclined grooves form a V-shaped channel, and the first end of the outer sleeve 1 is provided with a break groove 13 extending to the second end of the outer sleeve, the break groove 13 is provided with a plurality of break grooves distributed around the circumference at intervals. The inner diameter of the outer sleeve 1 at the lower end can be expanded to some extent by the break grooves 13, so that the part of the translation pad located at the convex column 32 can extend into the outer sleeve 1.

[0023] Preferably, the hollow chamber of the outer sleeve 1 has a reduced diameter chamber and an expanded diameter chamber, the reduced diameter chamber is above the expanded diameter chamber, a step surface (not shown in the figure) is formed between the reduced diameter chamber and the expanded diameter chamber in the outer sleeve 1, the translation pad 3, the tightening block 5 and the restoring member 4 are all located in the expanded diameter chamber, and the spring is tensioned between the step surface and the translation pad 3.

[0024] The utility model discloses a rotary joint with positioning function, when the water faucet with swing arm is applied, the convex column 32 is in the lowest point of guide groove 12 and is initial state, when swing arm rotates and adjusts angle, lower sleeve body 2 rotates with sleeve tight block 5, and the rotation of sleeve tight block 5 makes translation pad 3 do the circumferential rotation correspondingly, and when translation pad rotates circumferentially, the limitation of convex column 32 in guide groove 12 can only move upward along one side of guide groove 12, thereby making translation pad 3 can only move upward, and the upward movement of translation pad 3 makes spring compression, swing arm can rotate smoothly at this time, and translation pad 3 does not move after rotating, and the spring of compression generates the restoring force and makes translation pad 3 move downward, and translation pad 3 and sleeve tight block 5 are engaged together again through the tooth structure of concave-convex cooperation and can not rotate, make swing arm present fixed angle, compared with prior art, the fixed state of swing arm after rotating is always in stable state using the engineering structure of concave-convex cooperation, is stable in use, and the service life is long, and will not cause the problem of failure with the length of use time, simultaneously, the whole structure is simple, and convenient operation, and is easy to process production.

[0025] In addition, the rotary joint of the patent application can also be used for a vegetable basin faucet, that is, the bend pipe for water outlet in the vegetable basin faucet is sleeved with the inner sleeve body, and the outer sleeve body is sleeved with the mounting seat of the vegetable basin faucet and the sink.

[0026] The product form of the utility model is not limited to the drawings and examples, and any appropriate changes or modifications of the similar ideas should be considered as not deviating from the patent category of the utility model.

Claims

1. A rotary joint with a band positioning function, characterized by: The utility model provides a faucet sleeve, which comprises an outer sleeve and an inner sleeve, the first end of the inner sleeve is located in the outer sleeve, the second end of the inner sleeve is located outside the first end of the outer sleeve and can be sealingly matched with the faucet sleeve, a translation pad is sleeved on the outer sleeve and can be translated along the axial direction of the outer sleeve, the translation pad is engaged with the inner sleeve through a tooth structure, the translation pad is provided with an axial translation driving structure on the outer sleeve, which drives the translation pad to translate along the axial direction of the outer sleeve and disengage from the inner sleeve when the inner sleeve rotates, and a restoring member is arranged in the outer sleeve to generate an elastic restoring force when the translation pad moves away from the inner sleeve.

2. A rotary joint with a positioning function according to claim 1, characterized in that: The inner sleeve and the outer sleeve are both cylindrical structures, a closed loop-shaped groove is concavely arranged on the outer side wall of the outer sleeve, and a sealing ring for mounting the faucet is embedded in the closed loop-shaped groove, and a locking groove for locking the faucet is concavely arranged on the outer side wall of the outer sleeve.

3. A rotary joint with positioning function according to claim 1 or 2, characterized in that: The inner sleeve has a reduced diameter section and an expanded diameter section, the reduced diameter section is located in the outer sleeve and sealingly matched with the outer sleeve, the expanded diameter section is located outside the outer sleeve and abuttingly matched with the first end face of the outer sleeve, a recessed groove in a closed loop shape is concavely arranged on the outer side wall of the expanded diameter section, and a sealing ring for sealingly matching with the faucet is embedded in the recessed groove, a sleeve locking boss in a polyhedral structure is protrusively arranged on the outer side wall of the reduced diameter section and abuttingly placed on the end face of the expanded diameter section, a sleeve locking block matched with the polyhedral structure is sleeved on the sleeve locking boss, and the sleeve locking block and the translation pad are abuttingly matched through the tooth structure.

4. A rotary joint with a positioning function according to claim 3, characterized in that: The sleeve locking block is concavely provided with a plurality of recessed arc grooves penetrating along the radial direction of the sleeve locking block on one side of the sleeve locking block facing the translation pad, the recessed arc grooves are circumferentially and spacedly distributed along the sleeve locking block, and a plurality of arc-shaped protrusions corresponding to the recessed arc grooves are protrusively arranged on one side of the translation pad facing the sleeve locking block, and the arc-shaped grooves and the arc-shaped protrusions constitute the tooth structure.

5. A rotary joint with a positioning function according to claim 3, characterized in that: A protruding column is protrusively arranged on the outer side wall of the translation pad, a guide groove into which the protruding column is slidably inserted is formed at the first end of the outer sleeve, the guide groove has two inclined grooves connected with each other, the first ends of the two inclined grooves are closely connected, the second ends of the two inclined grooves are inclinedly extended away from the first end of the outer sleeve, and a disconnection groove extending toward the second end of the outer sleeve is formed at the end of the first end of the outer sleeve.

6. A rotary joint with a positioning function according to claim 5, characterized in that: The protruding column is provided with two protruding columns arranged opposite to each other, the guide groove is correspondingly provided with two guide grooves, and the disconnection groove is provided with a plurality of disconnection grooves spacedly and circumferentially distributed.

7. A rotary joint with a positioning function according to claim 3, characterized in that: The restoring member is a spring.

8. A rotary joint with a positioning function according to claim 7, characterized in that: The hollow chamber of the outer sleeve has a reduced diameter chamber and an expanded diameter chamber, a step face is formed at the position where the reduced diameter chamber and the expanded diameter chamber are located in the outer sleeve, the translation pad, the sleeve locking block and the restoring member are located in the expanded diameter chamber, and the spring is tensioned between the step face and the translation pad.

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