Locking device for a tap

Abstract

The utility model discloses a locking device of faucet, it is used for locking the faucet on the base with the through -hole, including the tightening sleeve, it covers the through -hole top of base correspondingly, the faucet is fixed in the tightening sleeve through the lock structure, the tensioning structure, including the screw rod of adjusting tight, the fastener and the sleeve portion of the inside wall formed in the tightening sleeve, the sleeve portion is provided with the guide hole of the screw rod through the setting, the axis of guide hole is parallel with the axis of tightening sleeve and does not coincide, the fastener is located below the base, and has the abutting portion of abutting into the through -hole and the inner wall of through -hole, the screw rod of adjusting tight is screwed after the guide hole and through -hole and is screwed with fastener, when screwing the screw rod of adjusting tight, the screw rod of adjusting tight drives the tightening sleeve and presss from both sides on the upper surface of base, the utility model discloses technical scheme, and its simple structure, easy installation, low in cost and anti -loose reliable, solve the problem that the existing faucet is easy to loosen and rotates after long -term use, and the inconvenient installation problem.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, specifically to a faucet locking device. Background Technology

[0002] Currently, faucets, as commonly used components, need to be permanently fixed to bases with through holes in basins, bathtubs, or sinks. Existing faucet installation structures generally employ simple nut tightening or clip-on fixing methods, relying solely on friction or clip elasticity for fixation, lacking reliable anti-loosening constraints. After prolonged use, factors such as water flow impact, daily operational vibrations, and thermal expansion and contraction can easily cause the nuts to loosen, and the clips to deform due to fatigue, increasing the clearance. This can cause the faucet to loosen and rotate around its axis at the through hole in the base, ultimately leading to water flow deviation and inconvenience when connecting water. In severe cases, loosening can even cause leaks between the faucet and the base, affecting the cleanliness of the bathroom environment and reducing the user experience. Furthermore, during installation, hands must reach into the space under the base to operate the nuts or clips, resulting in limited and confined operating space and obstructed visibility, making installation extremely inconvenient. Utility Model Content

[0003] This utility model provides a locking device for a faucet, which is simple in structure, easy to install, low in cost, and reliable in preventing loosening. It solves the problems of existing faucets being prone to loosening and rotation after long-term use and inconvenient to install. Its main technical solution is as follows:

[0004] A faucet locking device for securing a faucet to a base with a through hole, characterized in that: it includes an upper tightening sleeve, which covers the through hole of the base; the faucet is fixed to the upper tightening sleeve by a locking structure; a tensioning structure includes an adjusting screw, a lower tightening member, and a sleeve portion formed on the inner sidewall of the upper tightening sleeve, the sleeve portion having a guide hole for the adjusting screw to pass through, the axis of the guide hole being parallel to and not coincident with the axis of the upper tightening sleeve; the lower tightening member is located below the base and has a pressing portion extending into the through hole and abutting against the inner wall of the through hole; the adjusting screw passes through the guide hole and the through hole in sequence and is screwed to the lower tightening member; when the adjusting screw is screwed, the adjusting screw drives the upper tightening sleeve to press against the upper surface of the base, and at the same time, the lower tightening member is limited and prevented from rotating by the pressing portion relative to the through hole, so that the lower tightening member is displaced and pressed against the lower surface of the base along the axial direction of the adjusting screw, and cooperates with the upper tightening sleeve to clamp the base.

[0005] Preferably, the tightening member includes a base portion for tightly abutting against the lower surface of the base, and a threaded hole portion formed on the base portion corresponding to the sleeve portion. When the tightening portion of the tightening member extends into the through hole and abuts against it, the axis of the threaded hole portion can coincide with the axis of the guide hole.

[0006] Preferably, the base portion is configured in an arc shape, the base portion is located radially outside the through hole and is in close contact with the lower surface of the base; the screw hole portion and the clamping portion are both located inside the arc of the base portion.

[0007] Preferably, the tightening member further includes an anti-slip body disposed on one end face of the base portion facing the base, the anti-slip body being configured as an anti-slip protrusion or an anti-slip layer; when the base portion is in close contact with the lower surface of the base, the anti-slip body abuts against the lower surface of the base.

[0008] Preferably, the abutting part is a vertical plate disposed on the base part, the vertical height of the vertical plate is higher than the vertical height of the base part; the vertical plate extends toward the through hole.

[0009] Preferably, the inner diameter of the upper tight sleeve is greater than or equal to the inner diameter of the through hole, and the outer diameter of the upper tight sleeve covers the edge of the through hole of the base.

[0010] Preferably, the locking structure is a limiting screw; the side wall of the faucet has a limiting hole, and the limiting screw passes through the limiting hole and abuts against the upper tightening sleeve to restrict the faucet on the upper tightening sleeve.

[0011] Preferably, the inner wall of the upper tight sleeve has at least two positioning blocks extending downwards, the positioning blocks being evenly distributed along the circumference of the upper tight sleeve and protruding from the lower end face of the upper tight sleeve; the positioning blocks are inserted into the through hole of the base so that the axis of the upper tight sleeve coincides with the axis of the through hole.

[0012] Preferably, the lower surface of the upper tightening sleeve is provided with a washer, and the washer is sandwiched between the upper tightening sleeve and the base.

[0013] Preferably, the lower surface of the upper sleeve is recessed with a groove for placing the washer, and the depth of the groove is less than the thickness of the washer.

[0014] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0015] (1) This utility model provides a faucet locking device, which has a simple structure, is easy to install, has low cost and is reliable in preventing loosening. It solves the problems of easy loosening and rotation and inconvenient installation of existing faucets after long-term use. The technical solution of this utility model is to first pull the adjusting screw to drive the clamping part of the lower clamping part to extend into the through hole of the base, and then screw the adjusting screw to make the clamping part abut against the inner wall of the through hole, and make the lower clamping part only able to move towards the lower surface of the base and stick to it without rotating. Then, it cooperates with the upper clamping sleeve above the base to form a stable clamping force to clamp the base, ensuring that the faucet is not easy to loosen after being locked in the upper clamping sleeve. The entire process does not require the hand to reach under the base. The faucet can be locked by operating the adjusting screw above the base. The installation and operation space is extremely large, and the installation and maintenance are convenient. It solves the drawbacks of easy loosening and cumbersome installation caused by existing nut and buckle fixing schemes.

[0016] (2) In this technical solution, the base part is designed as an arc and the base part is located on the radial outside of the through hole, which can avoid obstacles such as water pipes passing through the through hole and perfectly adapt to the installation scenario with limited space; secondly, the screw hole part and the clamping part are both located on the inner side of the arc of the base part, so that the force of the tightening part is evenly directed towards the inside, which strengthens the circumferential limiting effect of the clamping part and the inner wall of the through hole, and at the same time prevents the tightening part from rotating with the tightening screw, further improving the locking reliability.

[0017] (3) In this technical solution, an anti-slip body (anti-slip protrusion or anti-slip layer) is provided on the end face of the base facing the base, which effectively strengthens the friction between the lower tensioner and the lower surface of the base, and avoids easy displacement due to long-term vibration. When the base is in close contact with the lower surface of the base, the anti-slip body increases the friction through physical protrusions or rough surfaces. Even when subjected to water flow impact or daily vibration, the lower tensioner will not slide relative to the base, ensuring that the clamping force between the upper tensioner and the lower tensioner remains stable, indirectly preventing the faucet from loosening. At the same time, the anti-slip body has a simple structure, requires no additional processing costs, and is easy to mass-produce.

[0018] (4) In this technical solution, the inner diameter of the upper tight sleeve is greater than or equal to the inner diameter of the through hole, and its outer diameter covers the edge of the through hole to form a physical water barrier and reduce the risk of water leakage.

[0019] (5) In this technical solution, at least two evenly distributed positioning blocks are provided on the upper tight sleeve to ensure that the upper tight sleeve and the through hole are quickly coaxially installed, and to avoid installation eccentricity leading to locking failure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the faucet being installed in a washbasin using a locking device according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the locking device and the faucet in an embodiment of this utility model;

[0023] Figure 3 This is an exploded view of the overall locking device according to an embodiment of the present invention;

[0024] Figure 4 This is a structural schematic diagram of the tightening component of this utility model;

[0025] Figure 5 This is an exploded schematic diagram of the faucet installed in the washbasin using a locking device according to an embodiment of this utility model;

[0026] Figure 6 This is a cross-sectional view of the faucet installed in the washbasin using a locking device, according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 7 This is a cross-sectional view of the faucet installed in the washbasin using a locking device, according to an embodiment of the present invention. Figure 2 .

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Tightening sleeve; 11. Positioning block; 12. Washer; 13. Cavity groove; 21. Adjusting screw; 22. Lowering component; 221. Base; 222. Screw hole; 223. Anti-slip body; 224. Vertical plate; 23. Sleeve; 231. Guide hole; 3. Locking structure; A. Faucet; B. Base. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0032] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0033] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0034] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0035] Please see Figures 1 to 7 .

[0036] This embodiment provides a locking device for a faucet, which is simple in structure, easy to install, low in cost, and reliable in preventing loosening, solving the problems of existing faucets easily loosening and rotating after long-term use, and being inconvenient to install. In this embodiment, see... Figure 1 The locking device is used to secure the faucet to the base B with a through hole. The faucet is mainly the faucet body, which typically houses the faucet valve core and hot and cold water pipes. The base B with the through hole is typically a bathroom sink, bathtub, or dishwashing basin with a through hole. In this embodiment, the locking device includes:

[0037] Tighten sleeve 1, see Figure 1 The upper sleeve 1, corresponding to the through hole of the base B, has an inner diameter greater than or equal to the inner diameter of the through hole, and its outer diameter covers the edge of the through hole of the base B. The faucet is fixed to the upper sleeve 1 by a locking structure 3, which is a limiting screw. A limiting hole is provided on the side wall of the faucet, and the limiting screw passes through the limiting hole and abuts against the upper sleeve 1 to restrict the faucet to the upper sleeve 1. The limiting hole is usually provided with a thread that matches the limiting screw. In other embodiments, the locking structure 3 may also be a pin.

[0038] Tensioning structure, see Figure 2 and Figure 3It includes a tightening screw 21, a lower tightening member 22 and a sleeve portion 23 formed on the inner side wall of the upper tightening sleeve 1. The sleeve portion 23 has a guide hole 231 for the tightening screw 21 to pass through. The inner wall of the guide hole 231 is smooth. The axis of the guide hole 231 is parallel to and does not coincide with the axis of the upper tightening sleeve 1, that is, the sleeve portion 23 is eccentrically arranged inside the upper tightening sleeve 1.

[0039] In this embodiment, see Figures 4 to 6 The tightening member 22 is located below the base B. The tightening member 22 includes a base portion 221 for tightly abutting against the lower surface of the base B, and a screw hole portion 222 formed on the base portion 221 corresponding to the sleeve portion 23. The base portion 221 also has a pressing portion that extends into the through hole of the base B and abuts against the inner wall of the through hole. The pressing portion is mainly a vertical plate 224 disposed on the base portion 221. The vertical height of the vertical plate 224 is higher than the vertical height of the base portion 221. The vertical plate 224 extends toward the through hole so that when the base portion 221 is tightly abutting against the lower surface of the base B, the vertical plate 224 can extend into the through hole. That is, the vertical height of the vertical plate 224 ensures that it can reliably extend into the through hole and form an effective abutment with the hole wall, avoiding the limitation failure due to the pressing portion being too short. The sleeve portion 23 is eccentrically positioned inside the upper sleeve 1, which ensures that the vertical plate 224 can accurately abut against the wall of the through hole and has a greater clamping force.

[0040] In this embodiment, the base portion 221 is configured in an arc shape, see [reference]. Figure 7 The base portion 221 is located radially outside the through hole and is in close contact with the lower surface of the base B; the screw hole portion 222 and the clamping portion are both located inside the arc of the base portion 221.

[0041] In this embodiment, see Figures 5 to 7 The adjusting screw 21 in the tensioning structure passes sequentially through the guide hole 231 of the sleeve part 23 and the through hole of the base B, and is screwed to the lower tightening member 22 below the base B; when the user tightens the adjusting screw 21, see Figure 6 In its operating state, the adjusting screw 21 drives the upper tightening sleeve 1 to press against the upper surface of the base B, while the lower tightening member 22 is linked to abut against the through hole through the abutting part to achieve a limit stop rotation, so that the lower tightening member 22 moves along the axial direction of the adjusting screw 21 toward the lower surface of the base B and fits tightly with the upper tightening sleeve 1 to clamp the base B.

[0042] In this embodiment, the clamping fit between the upper tightening sleeve 1 and the lower tightening member 22 mainly restricts the axial displacement of the upper tightening sleeve 1, i.e., restricts the axial displacement of the faucet. However, it is worth noting that when the vertical plate 224 of the lower tightening member 22 abuts against the inner wall of the through hole in the base B, the fit between the vertical plate 224 and the inner wall of the through hole can apply circumferential constraint to the upper tightening sleeve 1, i.e., restrict the upper tightening sleeve 1 from rotating in the clockwise loosening direction. Therefore, the axial clamping force generated by the upper tightening sleeve 1 and the lower tightening member 22, together with the circumferential abutting force generated by the vertical plate 224 and the inner wall of the through hole, can achieve a double locking effect, enhancing the installation stability of the faucet.

[0043] In this embodiment, the lower clamping member 22 further includes an anti-slip body 223 disposed on one end face of the base portion 221 facing the base B. The anti-slip body 223 is configured as an anti-slip protrusion or an anti-slip layer. When the base portion 221 is in close contact with the lower surface of the base B, the anti-slip body 223 presses against the lower surface of the base B. The addition of the anti-slip body 223 to the base portion 221 enhances the friction between the lower clamping member 22 and the base B, preventing displacement after clamping and improving long-term stability. Specifically, when the base portion 221 is in close contact with the lower surface of the base B, the anti-slip body 223 increases the friction through physical protrusions or a rough surface. Even under the impact of water flow or daily vibration, the lower clamping member 22 is not easy to slide relative to the base B, ensuring that the clamping force between the upper clamping sleeve 1 and the lower clamping member 22 remains stable, indirectly preventing the faucet from loosening. At the same time, the anti-slip body 223 has a simple structure, requires no additional processing costs, and is easy to manufacture.

[0044] In this embodiment, see Figure 7 The inner wall of the upper sleeve 1 has at least two positioning blocks 11 extending downwards. The positioning blocks 11 are evenly distributed around the circumference of the upper sleeve 1 and protrude from the lower end face of the upper sleeve 1. The positioning blocks 11 are inserted into the through hole of the base B so that the axis of the upper sleeve 1 coincides with the axis of the through hole. The evenly distributed two or more positioning blocks 11 can constrain the upper sleeve 1 from multiple directions, forcing the axis of the upper sleeve 1 to coincide with the axis of the through hole, and avoiding misalignment of the guide hole 231 of the sleeve part 23 and the screw hole part 222 of the lower tightening member 22 due to eccentricity.

[0045] In this embodiment, a washer 12 is provided on the lower surface of the upper tight sleeve 1, and the washer 12 is sandwiched between the upper tight sleeve 1 and the base B; a cavity 13 for placing the washer 12 is recessed on the lower surface of the upper tight sleeve 1, and the depth of the cavity 13 is less than the thickness of the washer 12. Thus, when the upper tight sleeve 1 is pressed against the base B, the washer 12 can enhance the sealing between the upper tight sleeve 1 and the base B through elastic deformation.

[0046] The working principle and usage process of this utility model:

[0047] First, see Figure 2 and Figure 3 The washer 12 is positioned in the groove 13 on the lower surface of the upper tight sleeve 1.

[0048] Second, the adjusting screw 21 is threaded through the guide hole 231 of the sleeve part 23 and screwed into the screw hole 222 on the tightening member 22;

[0049] Third, first, the lowering member 22 is placed below the through hole of the base B (the lowering member 22 is an arc-shaped structure and can pass through the through hole of the base B to be placed below the through hole). Then, the upper tightening sleeve 1 is inserted into the through hole of the base B through two positioning blocks 11, accurately covering the upper part of the through hole of the base B.

[0050] Fourth, see Figure 6 Start by manually pulling up and tightening the adjusting screw 21. The adjusting screw 21 drives the vertical plate 224 of the lower tightening member 22 to pre-extend into the through hole of the base B. Then continue to screw the adjusting screw 21 so that the pressing part abuts against the inner wall of the through hole. As the screwing force increases, the lower tightening member 22 is stuck in the through hole and cannot rotate. As a result, the lower tightening member 22 can only move along the axial direction of the adjusting screw 21 towards the upper tightening sleeve 1 until the anti-slip body 223 above the lower tightening member 22 is completely pressed against the lower surface of the base B and cannot move at all. At this time, the head of the adjusting screw 21 also presses the upper tightening sleeve 1 completely against the upper surface of the base B. The upper tightening sleeve 1 and the lower tightening member 22 will generate a double constraint clamping force in the axial and circumferential directions to clamp the base B.

[0051] Finally, the faucet is positioned above the upper tightening sleeve 1 (a waterproof sealing ring can be fitted onto the outer ring of the upper tightening sleeve 1), and is secured to the upper tightening sleeve 1 by a limiting screw passing through a limiting hole, thereby restricting the faucet to the upper tightening sleeve 1 and locking the faucet to the base B. Therefore, this utility model eliminates the need for hands to reach under the base B throughout the entire process; the faucet can be locked simply by operating the adjusting screw 21 above the base B. This provides ample installation and operation space, facilitating installation and maintenance, and overcoming the drawbacks of existing nut and clip fixing solutions, such as easy loosening and cumbersome installation.

[0052] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A locking device for a faucet, used to lock the faucet to a base with a through hole, characterized in that: include The upper tightening sleeve covers the through hole of the base; the faucet is fixed to the upper tightening sleeve by a locking structure; The tensioning structure includes an adjusting screw, a lower tensioning member, and a sleeve portion formed on the inner side wall of the upper tensioning sleeve. The sleeve portion has a guide hole through which the adjusting screw passes. The axis of the guide hole is parallel to and does not coincide with the axis of the upper tensioning sleeve. The lower tensioning member is located below the base and has a pressing part that extends into a through hole and abuts against the inner wall of the through hole. The adjusting screw is sequentially threaded through the guide hole and through hole and then screwed to the lower tightening member; when the adjusting screw is turned, the adjusting screw drives the upper tightening sleeve to press against the upper surface of the base, and at the same time, the lower tightening member is linked to the through hole to limit rotation through the abutment part, so that the lower tightening member is displaced along the axial direction of the adjusting screw toward the lower surface of the base and fits tightly, and cooperates with the upper tightening sleeve to clamp the base.

2. The locking device for a faucet as described in claim 1, characterized in that: The tightening member includes a base portion for tightly abutting against the lower surface of the base, and a threaded hole portion formed on the base portion corresponding to the sleeve portion. When the tightening portion of the tightening member extends into the through hole and abuts against it, the axis of the threaded hole portion can coincide with the axis of the guide hole.

3. The locking device for a faucet as described in claim 2, characterized in that: The base portion is configured in an arc shape, the base portion is located radially outside the through hole, and is in close contact with the lower surface of the base; the screw hole portion and the clamping portion are both located inside the arc of the base portion.

4. The locking device for a faucet as described in claim 2, characterized in that: The tightening member also includes an anti-slip body disposed on one end face of the base portion facing the base, the anti-slip body being configured as an anti-slip protrusion or an anti-slip layer; when the base portion is in close contact with the lower surface of the base, the anti-slip body abuts against the lower surface of the base.

5. A locking device for a faucet as described in claim 2, characterized in that: The abutting part is a vertical plate disposed on the base part, and the vertical height of the vertical plate is higher than the vertical height of the base part; the vertical plate extends toward the through hole.

6. The locking device for a faucet as described in claim 1, characterized in that: The inner diameter of the upper tight sleeve is greater than or equal to the inner diameter of the through hole, and the outer diameter of the upper tight sleeve covers the edge of the through hole of the base.

7. The locking device for a faucet as described in claim 1, characterized in that: The locking structure is a limiting screw; the side wall of the faucet has a limiting hole, and the limiting screw passes through the limiting hole and abuts against the upper tightening sleeve to restrict the faucet on the upper tightening sleeve.

8. A faucet locking device as described in claim 1, characterized in that: The inner wall of the upper tight sleeve has at least two positioning blocks extending downwards. The positioning blocks are evenly distributed along the circumference of the upper tight sleeve and protrude from the lower end face of the upper tight sleeve. The positioning blocks are inserted into the through hole of the base so that the axis of the upper tight sleeve coincides with the axis of the through hole.

9. A locking device for a faucet as described in claim 1, characterized in that: The lower surface of the upper tightening sleeve is provided with a washer, which is sandwiched between the upper tightening sleeve and the base.

10. A locking device for a faucet as described in claim 9, characterized in that: The lower surface of the upper sleeve is recessed with a groove for placing the washer, the depth of which is less than the thickness of the washer.

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