Clamping and stopping mechanism of drawing faucet and drawing faucet

Abstract

The utility model provides a clamping and stopping mechanism of a drawing faucet. The clamping and stopping mechanism comprises a fixed part and a movable part, wherein the fixed part can move relative to a drawing pipe; the movable part moves along with the drawing pipe; the fixed part is provided with an elastic clamping piece, and the movable part is provided with a clamping stopping step and a releasing piece in the length direction of the drawing pipe. Compared with the fixed part, the movable part has an initial position, a clamping position and a separation position; when the movable part is located at the initial position, the whole fixed part is located on the outer side of the movable part; when the movable part is located at the clamping and stopping position, the clamping and stopping step enters the fixed part, so that the elastic clamping piece and the clamping and stopping step are in limiting fit in the reset direction of the drawing pipe; when the movable part is located at the separation position, the release part enters the fixed part and abuts against the elastic clamping part so as to drive the elastic clamping part to generate outward elastic deformation in the radial direction through generated extrusion force. The utility model further provides the drawing faucet, and the clamping and stopping mechanism is assembled on the drawing faucet.

Description

Technical Field

[0001] The utility model relates to a water outlet device, in particular to a pull-out faucet. Background Art

[0002] Some existing faucets adopt a pull-out pipe structure. Users can pull out the head of the pull-out faucet together with the water pipe, which is convenient for adjusting the water outlet direction. The pull-out pipe can automatically reset after the user finishes using it, or a weight is installed at the end of the pull-out pipe to assist its reset.

[0003] However, users need to continuously apply a pulling force to the pull-out pipe during the use process, which is likely to cause fatigue of the user's arm after long-term use.

[0004] For this reason, Chinese Patent CN117869675A discloses a pull-out suspension mechanism and a pull-out faucet. When the user pulls out the pull-out pipe during the use of the pull-out faucet, the positioning protrusion can enter the guiding sleeve and slide along the guiding chute until it is clamped with the downward limiting groove, thereby restricting the separation of the fixed cylinder and the guiding sleeve, realizing the suspension of the pull-out pipe. The user can make the positioning protrusion exit the downward limiting groove by pulling or rotating again, etc., to realize the reset of the pull-out pipe. During the use process, the user does not need to continuously apply a pulling force, which is more convenient. Moreover, after the pull-out pipe is suspended, it will not slide relative to the faucet housing, avoiding the wear caused by the high-frequency friction between the pull-out pipe and the housing. However, there are still problems of more parts, complex structure and occupying space. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a locking mechanism for a pull-out faucet, which has a simple structure, few parts and low cost.

[0006] To solve the above technical problems, the utility model provides a locking mechanism for a pull-out faucet, including: a fixed part that can move relative to the pull-out pipe and a movable part that moves together with the pull-out pipe;

[0007] The fixed part is provided with an elastic clamping member, and the movable part is provided with a locking step and a release member along the length direction of the pull-out pipe;

[0008] The movable part has an initial position, a locking position and a disengaging position relative to the fixed part; when the movable part is in the initial position, the whole fixed part is located outside the movable part; when the movable part is in the locking position, the locking step enters the fixed part, so that the elastic clamping member and the locking step are in limiting cooperation along the reset direction of the pull-out pipe; when the movable part is in the disengaging position, the release member enters the fixed part and abuts against the elastic clamping member to drive the elastic clamping member to generate an elastic deformation radially outward through the generated extrusion force.

[0009] In a preferred embodiment, the release member is an auxiliary disengagement ring sleeved on the outside of the pulling tube; the ring has a structure with a gradually increasing diameter as it approaches the fixed portion.

[0010] In a preferred embodiment, the stopping step is arranged outside the drawing tube, and the maximum diameter of the auxiliary disengagement ring is larger than the diameter of the stopping step.

[0011] In a preferred embodiment: the fixed part has a cavity for the movable part to enter; the inner wall of the cavity is provided with a guide surface and a stop surface; the movable part is provided with a guide block that cooperates with the guide surface or the stop surface.

[0012] In a preferred embodiment: the guide surface is provided with a first limiting surface and a second limiting surface along the circumferential direction, and the second limiting surface is higher than the first limiting surface;

[0013] The stopping surface is arranged below the first limiting surface and the second limiting surface, and completely covers the first limiting surface, the second limiting surface and the area between the first limiting surface and the second limiting surface.

[0014] In a preferred embodiment, the height difference between the first limiting surface and the second limiting surface is not less than the distance between the stopping step and the release member.

[0015] In a preferred embodiment: the area between the first limiting surface and the second limiting surface is divided into a falling guide surface and a lifting guide surface; the falling guide surface is connected to the first limiting surface, and the lifting guide surface is connected to the second limiting surface.

[0016] In a preferred embodiment: the fixed part includes an upper sleeve, a lower sleeve and a rotating guide sleeve; the inner wall of the rotating guide sleeve is provided with the guiding surface and the stopping surface.

[0017] In a preferred embodiment, the outer wall of the lower sleeve extends radially outward to form a circle of first protrusions, the first protrusions abut against the lower end surface of the upper sleeve, and the rotating guide sleeve is placed in the upper sleeve.

[0018] In a preferred embodiment: the elastic clamp is an elastic claw, and the side wall of the lower sleeve is provided with a protrusion for installing the elastic claw; the elastic claw includes a spring part and a connecting part, the connecting part is provided with a mounting hole corresponding to the protrusion, the spring part is provided at the end of the connecting part, and the side wall of the lower sleeve is provided with a clearance opening corresponding to the position of the spring piece.

[0019] In a preferred embodiment: the movable part includes a first fixed sleeve and a second fixed sleeve; the end of the first fixed sleeve close to the second fixed sleeve extends into the second fixed sleeve and is fixedly connected thereto; the outer wall of the first fixed sleeve on the side away from the second fixed sleeve extends radially outward with a second convex edge; the auxiliary disengagement ring is arranged outside the first fixed sleeve, and its lower end surface abuts against the second convex edge.

[0020] In a preferred embodiment, one end of the first fixing sleeve close to the second fixing sleeve is further provided with a protrusion for fixed connection with the drawing tube.

[0021] In a preferred embodiment, the second fixing sleeve is radially expanded outward on a side facing the first fixing sleeve, so that the locking step is formed on the lower end surface of the second fixing sleeve.

[0022] The utility model also provides a pull-out faucet equipped with the above-mentioned locking mechanism.

[0023] Compared with the existing technology, the technical solution of the utility model has the following beneficial effects:

[0024] The utility model provides a locking mechanism for a pull-out faucet. When the pull-out hose is stretched, the release member moves relative to the fixed portion. When the release member enters the fixed portion, the elastic locking member of the fixed portion is stretched, so that the elastic locking member cannot cooperate with the locking step, thereby achieving the reset of the pull-out faucet. When the release member does not enter the fixed portion, the pull-out locking effect can be achieved through the cooperation of the elastic locking member and the locking step. In addition, this locking structure has few parts, low cost, and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an axonometric view of a pull-out faucet in a preferred embodiment of the present utility model;

[0026] Figure 2 This is a side view of a pull-out faucet in a preferred embodiment of the present utility model;

[0027] Figure 3 This is an exploded view of the locking mechanism in the preferred embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of a pull-out faucet in an initial state in a preferred embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the pull-out faucet in the second highest point limit state in the preferred embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of a pull-out faucet in a stuck state in a preferred embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the retractable faucet in the highest point limit state in the preferred embodiment of the present utility model;

[0032] Figure 8 Schematic diagram of the retractable faucet in the disengaged state in the preferred embodiment of the present utility model;

[0033] Figure 9 Flattened state schematic diagram of the positional relationship between the guide block and the guide surface of the locking mechanism in various states in the preferred embodiment of the present utility model;

[0034] Figure 10 Three-dimensional side sectional view of the rotating guide sleeve in the preferred embodiment of the present utility model;

[0035] Figure 11 Another angle three-dimensional side sectional view of the rotating guide sleeve in the preferred embodiment of the present utility model. Detailed implementation manners

[0036] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. shall be understood in a broad sense. For example, "connected" can be wall-mounted connection, detachable connection, or integral connection, it can be mechanical connection, electrical connection, direct connection, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] Refer to Figures 1 - 11 , this embodiment provides a retractable faucet, including: a drawing head 1, a draw tube 2, a faucet body 3, a locking mechanism 4, and a counterweight 5;

[0039] One end of the draw tube 2 passes through the faucet body 3 and is connected to the drawing head 1, and a counterweight 5 is installed at the other end of the draw tube 2. The locking structure is arranged in the area between the support tube 6 and the counterweight 5; and the locking mechanism 4 includes: a fixed part 41 that is stationary relative to the support tube 6 and a movable part 42 that moves together with the draw tube 2. In this embodiment, the fixed part 41 is fixedly connected to the faucet body 3, and the movable part 42 is fixedly connected to the draw tube 2.

[0040] The fixed portion 41 is provided with an elastic clamp 411, and the movable portion 42 is provided with a locking step 421 and a release member along the length direction of the drawing tube 2;

[0041] Because the movable portion 42 moves along with the drawer tube 2, the movable portion 42 has an initial position, a stop position, and a disengaged position relative to the fixed portion 41. When the movable portion 42 is in the initial position, the fixed portion 41 is located outside the movable portion 42 as a whole. When the movable portion 42 is in the stop position, the stop step 421 enters the fixed portion 41, so that the elastic clip 411 and the stop step 421 are limitedly engaged along the direction of the drawer tube 2's reset, so that the drawer tube 2 can hover in the withdrawn position. When the movable portion 42 is in the disengaged position, the release member enters the fixed portion 41 and abuts against the elastic clip 411, thereby generating a radially outward elastic deformation of the elastic clip 411 through the generated extrusion force. The elastic clip 411 opens due to the elastic deformation, making it unable to engage with the stop step 421. In this way, under the action of the counterweight 5, the drawer tube 2 can be reset. For the user, the entire process is to pull out the drawer tube 2, and after releasing it, the drawer tube 2 is in a suspended state. Stretch the drawer tube 2 again, and release it to reset the drawer tube 2.

[0042] To achieve the above-mentioned effect, the release member in this embodiment is an auxiliary release ring 422 that is sleeved on the outside of the withdrawal tube 2; it has a structure with a gradually increasing diameter as it approaches the fixed portion 41. This inverted cone design allows the auxiliary release ring 422 to further expand the elastic clamp 411 as the counterweight 5 falls, so that the inner diameter of the expanded elastic clamp 411 is larger than the outer diameter of the locking step 421. In this way, the elastic clamp 411 cannot engage with the locking step 421, thereby ensuring that the locking step 421 and the elastic clamp 411 can be smoothly disengaged and reset. In addition, the above-mentioned locking mechanism 4 requires fewer parts, is low in cost, and occupies a small space.

[0043] In this embodiment, the locking step 421 is disposed outside the drawing tube 2, and the maximum diameter of the auxiliary detachment ring 422 is larger than the diameter of the locking step 421. The maximum diameter of the auxiliary detachment ring 422 determines the maximum diameter to which the elastic clamping member 411 can be expanded. Therefore, setting the maximum diameter of the auxiliary detachment ring 422 larger than the diameter of the locking step 421 ensures that the inner diameter of the elastic clamping member 411 after expansion is larger than the outer diameter of the locking step 421.

[0044] Since both the suspending and disengaging of the locking mechanism 4 are achieved by pulling the drawer tube 2 in the same direction, it is necessary to avoid directly pulling the drawer tube 2 into the disengaged state in the initial state, which would cause the locking function to fail. In this embodiment, the fixed portion 41 has a chamber for the movable portion 42 to enter; the inner wall of the chamber is provided with a guide surface 412 and a locking surface 413, and the movable portion 42 is provided with a guide block 4241 that cooperates with the guide surface 412 or the locking surface 413. In addition, the guide surface 412 is provided with a first limiting surface 4121 and a second limiting surface 4122 along the circumference, with the second limiting surface 4122 being higher than the first limiting surface 4121; the locking surface 413 is provided below the first limiting surface 4121 and the second limiting surface 4122, and completely covers the first limiting surface 4121, the second limiting surface 4122, and the area between the first limiting surface 4121 and the second limiting surface 4122.

[0045] With this arrangement, when the user pulls the pull-out tube 2 from the initial position, the guide block 4241 first enters the first limiting surface 4121 along the guide surface 412 and engages with the first limiting surface 4121. At this time, after the user releases the pull-out tube 2, the guide block 4241 falls back onto the stopping surface 413 under the action of the counterweight 5, thereby achieving a stop. At this time, the release member is still outside the fixed portion 41. After the user pulls the pull-out tube 2 again, the guide block 4241 moves from the stopping surface 413 to the second limiting surface 4122. Since the second limiting surface 4122 is higher than the first limiting surface 4121, the release member can now enter the fixed portion 41 and open the elastic clamping member 411. Then, under the action of the gravity of the counterweight 5, the entire movable portion 42 is detached from the fixed portion 41, and the pull-out tube 2 is reset.

[0046] In order to ensure that the pulling tube 2 continues to be pulled in the stuck state, the release piece can be brought into the fixed part 41, and the height difference between the first limiting surface 4121 and the second limiting surface 4122 is not less than the distance between the stuck step 421 and the release piece.

[0047] Furthermore, it is necessary to ensure that the guide block 4241 can accurately fall back to the locking surface 413 and rise to the second limiting surface 4122. The area between the first limiting surface 4121 and the second limiting surface 4122 is divided into a falling guide surface 4123 and a rising guide surface 4124. The falling guide surface 4123 is connected to the first limiting surface 4121, and the rising guide surface 4124 is connected to the second limiting surface 4122. In this way, when the guide block 4241 falls back from the first limiting surface 4121, it can fall back to the locking surface 413 along the falling guide surface 4123, and when it rises, it can enter the second limiting surface 4122 along the rising guide surface 4124.

[0048] In this embodiment, the fixed part 41 includes an upper sleeve 414, a lower sleeve 415, and a rotating guide sleeve 416; a guide surface 412 and a stopping surface 413 are provided on the inner wall of the rotating guide sleeve 416. A thread is provided on the upper end surface of the upper sleeve 414 and is fixedly connected to the faucet body 3. The lower end surface of the upper sleeve 414 is also fixedly connected to the lower sleeve 415 by a thread.

[0049] A first convex edge 4151 extends radially outward along the outer wall of the lower sleeve 415. After the upper sleeve 414 and the lower sleeve 415 are threadedly connected, the first convex edge 4151 abuts against the lower end surface of the upper sleeve 414, thereby placing the rotating guide sleeve 416 inside the upper sleeve 414.

[0050] In addition, the elastic clamping member 411 is an elastic clamping claw, and a protrusion 4152 for installing the elastic clamping claw is provided on the side wall of the lower sleeve 415; the elastic clamping claw includes a spring piece part 4111 and a connecting part 4112. An installation hole corresponding to the protrusion 4152 is provided on the connecting part 4112, and the spring piece part 4111 is arranged at the end of the connecting part 4112. A relief opening is provided on the side wall of the lower sleeve 415 corresponding to the position of the spring piece. In this way, the spring piece can contact and cooperate with the stopping step 421 or the release member through the relief opening.

[0051] In this embodiment, the movable part 42 includes a first fixed sleeve 423 and a second fixed sleeve 424; one end of the first fixed sleeve 423 close to the second fixed sleeve 424 extends into the second fixed sleeve 424 and is fixedly connected thereto; a second convex edge 4231 extends radially outward along the outer wall of the first fixed sleeve 423 on the side away from the second fixed sleeve 424; the auxiliary detachment ring 422 is sleeved outside the first fixed sleeve 423, and its lower end surface abuts against the second convex edge 4231. The second convex edge 4231 can prevent the auxiliary detachment ring 422 from falling off the first fixed sleeve 423.

[0052] A convex object 4232 for fixedly connecting with the draw tube 2 is further provided at one end of the first fixed sleeve 423 close to the second fixed sleeve 424. In this way, the first fixed sleeve 423 is fixedly connected to the draw tube 2 and can move up and down together when being pulled, and a guide block 4241 is provided on the side wall of the second fixed sleeve 424.

[0053] Finally, the side of the second fixed sleeve 424 facing the first fixed sleeve 423 expands radially outward, so that a stopping step 421 is formed on the lower end surface of the second fixed sleeve 424. Through the above settings, the entire stopping structure is completed, and the functions of stopping and resetting can be fully realized. The user can achieve stopping or resetting as long as the draw tube 2 is pulled in one direction, and the operation is simple.

[0054] The above are only the preferred specific embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any technical equivalent transformation made by using the content of the specification of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A card-stopping mechanism for a pull-out faucet, characterized in that include: A fixed part that can move relative to the drawing tube and a movable part that moves with the drawing tube; The fixed part is provided with an elastic clamping piece, and the movable part is provided with a locking step and a release piece along the length direction of the drawing tube; Compared with the fixed part, the movable part has an initial position, a locking position and a disengaged position; when the movable part is in the initial position, the fixed part is located as a whole on the outside of the movable part; when the movable part is in the locking position, the locking step enters the fixed part, so that the elastic clip and the locking step are limitedly matched along the direction of resetting the pulling tube; when the movable part is in the disengaged position, the release part enters the fixed part and abuts against the elastic clip to drive the elastic clip to generate elastic deformation radially outward through the generated extrusion force.

2. The anti - pulling mechanism of a draw - out faucet according to claim 1, wherein: The release member is an auxiliary disengagement ring sleeved on the outside of the drawing tube; it has a structure with a gradually increasing diameter along the direction approaching the fixed part.

3. The anti - pull - out mechanism of a pull - out faucet according to claim 2, wherein: The stopping step is arranged outside the drawing tube, and the maximum diameter of the auxiliary disengagement ring is greater than the diameter of the stopping step.

4. The latching mechanism of a pull-out faucet according to any one of claims 1-3, characterized in that: The fixed part has a cavity for the movable part to enter; the inner wall of the cavity is provided with a guide surface and a stop surface; the movable part is provided with a guide block matched with the guide surface or the stop surface.

5. The latching mechanism of a pull-out faucet according to claim 4, characterized in that: The guide surface is provided with a first limiting surface and a second limiting surface along the circumferential direction, and the second limiting surface is higher than the first limiting surface; The stopping surface is arranged below the first limiting surface and the second limiting surface, and completely covers the first limiting surface, the second limiting surface and the area between the first limiting surface and the second limiting surface.

6. The anti - pull - out mechanism of a pull - out faucet according to claim 5, characterized in that: The height difference between the first limiting surface and the second limiting surface is not less than the distance between the stopping step and the release member.

7. The card-stopping mechanism of a pull-out faucet according to claim 5, characterized in that: The area between the first limiting surface and the second limiting surface is divided into a falling guide surface and a lifting guide surface; the falling guide surface is connected to the first limiting surface, and the lifting guide surface is connected to the second limiting surface.

8. The latching mechanism of a pull-out faucet according to claim 4, characterized in that: The fixed part includes an upper sleeve, a lower sleeve and a rotation guide sleeve; the inner wall of the rotation guide sleeve is provided with the guide surface and the stopping surface.

9. The latching mechanism of a pull-out faucet according to claim 8, characterized in that: The outer wall of the lower sleeve extends radially outward to form a circle of first protrusions, the first protrusions abut against the lower end surface of the upper sleeve, and the rotating guide sleeve is placed in the upper sleeve.

10. The card-stopping mechanism of a pull-out faucet according to claim 9, characterized in that: The elastic clamp is an elastic claw, and the side wall of the lower sleeve is provided with a protrusion for installing the elastic claw; the elastic claw includes a spring part and a connecting part, the connecting part is provided with a mounting hole corresponding to the protrusion, the spring part is provided at the end of the connecting part, and the side wall of the lower sleeve is provided with a clearance opening corresponding to the position of the spring piece.

11. The anti - stop mechanism of a pull - out faucet according to claim 2 or 3, characterized in that: The movable part includes a first fixed sleeve and a second fixed sleeve; the end of the first fixed sleeve close to the second fixed sleeve extends into the second fixed sleeve and is fixedly connected thereto; the outer wall of the first fixed sleeve on the side away from the second fixed sleeve extends radially outward with a second convex edge; the auxiliary disengagement ring is arranged outside the first fixed sleeve, and its lower end surface abuts against the second convex edge.

12. The anti - pull - out faucet locking mechanism according to claim 11, characterized in that: An end of the first fixing sleeve close to the second fixing sleeve is further provided with a protrusion for fixed connection with the drawing tube.

13. The latching mechanism of a pull-out faucet according to claim 11, characterized in that: One side of the second fixed sleeve facing the first fixed sleeve expands radially outward so that the lower end surface of the second fixed sleeve forms the stopping step.

14. A pull-out faucet, characterized in that The stopping mechanism according to any one of claims 1-13 is assembled.

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