A faucet top mounting assembly

Abstract

The present disclosure provides a faucet top mounting assembly, related to the technical field of faucet accessories. It addresses issues of insufficient operational comfort and convenience in existing faucet top mounting assemblies. The assembly comprises a cylindrical base and a fixing block. The fixing block is configured to work together with the base to clamp the countertop. The base comprises a vertically arranged through hole for a bolt to pass through. The fixing block is threadedly connected to the bolt. A mounting plate is vertically arranged at a bottom end of the base. The fixing block is connected to the mounting plate and can slide up and down along the mounting plate. The mounting plate is plate-like, with its bottom portion bent inward from the outside. There is a yielding clearance between a wall surface of the through hole and a rod of the bolt. The yielding clearance is configured in such a way that the bolt is capable of tilting when the bottom end of the bolt moves toward an inner side of the mounting plate. This faucet top mounting assembly improves the comfort and convenience of installation operations.

Description

[0001] The present disclosure relates to faucet accessories, specifically to a faucet top mounting assembly.BACKGROUND

[0002] Currently, faucets are usually fixed to countertops using bolts and nuts. During installation, bolts are first fixed to a faucet, then water pipes and the bolts are passed through a mounting hole in a countertop. Next, washers are fitted to the bolts underneath the countertop. Then nuts are fitted onto the bolts, and the nuts are tightened with a wrench. However, the limited space and poor lighting conditions underneath the countertop make the installation process inconvenient.

[0003] To facilitate faucet installation, engineers have designed mounting assemblies that allow faucets to be mounted from above countertops. For example, the Chinese patent document with publication number CN 208152161U discloses a quick mounting structure for faucet installation from above countertops. This structure comprises a fixing base, a bracket, a limiting rod, and a bolt. The fixing base is used to connect the mounting structure securely with the faucet housing. The bracket is positioned below the fixing base. The bolt passes through the fixing base and is threadedly connected to the bracket. The limiting rod is fixed to the fixing base and passes through the bracket. Clamping plates are hinged to both ends of the bracket, and torsion springs are arranged between the bracket and the clamping plates. Under the action of the torsion springs, the clamping plates expand outward relative to the bracket.

[0004] When mounting a faucet, the first step is to use fingers to press inward on the clamping plates at both ends of the bracket to overcome the tension of the torsion springs, thereby bringing the two clamping plates closer together. Then while maintaining the finger pressure on the clamping plates, insert the clamping plates and the bracket through a mounting hole in the countertop, with the fixing base positioned above the countertop. After the clamping plates and bracket fully pass through the mounting hole, the two clamping plates expand outward relative to the bracket under the action of the torsion springs. Next, use a wrench to rotate the bolt, driving the bracket upward until the clamping plates press against the underside of the countertop, thereby fixing the fixing base to the countertop. Finally, the faucet is placed and fixed to the fixing base.

[0005] Using the above-mentioned quick mounting structure allows for faucet installation from above countertops. However, during installation, installers must press the clamping plates inward with their fingers to overcome the tension of the torsion springs. Additionally, installers need to maintain this pressure for a period of time, which can easily cause finger discomfort. As a result, there are still shortcomings in operational comfort and convenience. To improve installation comfort, a common approach is to add rubber pads to the clamping plates or use torsion springs with a lower elastic modulus. While adding rubber pads is straightforward, it increases costs. On the other hand, using torsion springs with a lower elastic modulus may result in the clamping plates failing to expand smoothly into place.DISCLOSURE SUMMARY

[0006] The present disclosure aims to address the above-mentioned issues in existing technology by providing a faucet top mounting assembly. This solution resolves the technical problem of insufficient operational comfort in current top mounting assemblies.

[0007] The purpose of this disclosure can be achieved through the following technical solution: A faucet top mounting assembly comprises a cylindrical base and a fixing block. The base and the fixing block are configured to work together to clamp a countertop. The base comprises a vertically arranged through hole for a bolt to pass through. The fixing block is threadedly connected to the bolt. A mounting plate is vertically arranged at a bottom end of the base. The fixing block is connected to the mounting plate and can slide up and down along the mounting plate. The mounting plate is plate-like, with a bottom portion bent inward from the outside. There is a yielding clearance formed between a wall surface of the through hole and a rod of the bolt. The yielding clearance is configured in such as way that the bolt is capable of tilting when a bottom end of the bolt moves toward an inner side of the mounting plate.

[0008] The inner side of the mounting plate refers to a space at a side of the mounting plate that is closer to the centerline of the base. The up-and-down sliding of the fixing block refers to a movement of the fixing block in a direction from a bottom to a top (i.e., upward) and in a direction from the top to the bottom (i.e., downward) along the mounting plate. Since the fixing block is connected to the mounting plate and is threaded onto the bolt, rotating the bolt drives the fixing block to slide up and down along the mounting plate.

[0009] Mounting holes in the countertop are usually drilled at a construction site or a countertop processing factory according to a size of the faucet and its accessories purchased or selected by a customer. The size of the mounting hole must allow the fixing block to pass through when the fixing block is positioned at a bottom of the mounting plate, while preventing an outer edge of a base bottom from passing through. At the construction site, the countertop is fixed first, and then the faucet is installed. During faucet installation, the first step is to rotate the bolt, allowing the fixing block to slide along the mounting plate to the bottom of the mounting plate. At this point, the bottom end of the bolt moves inward, and the bolt tilts slightly due to the yielding clearance, allowing the fixing block to retract towards the inner side of the mounting plate. Next, insert the mounting plate and the bottom of the bolt into the mounting hole in the countertop. Once the base rests against an upper surface of the countertop, rotate the bolt to slide the fixing block upward along the mounting plate, so that the fixing block extends outward from the mounting plate. The bolt then returns to its original position. Continue rotating the bolt until the fixing block presses against a bottom surface of the countertop. The fixing block and the base work together to clamp and secure the faucet mounting assembly to the countertop. Finally, pass water pipes of the faucet through the base and connect a faucet housing to the base to complete the faucet installation.

[0010] Due to the outside-to-inside bending at the bottom of the mounting plate and the coordination with the yielding clearance, while the fixing block slides along the mounting plate to its bottom through rotating the bolt, the bolt at the same time tilts from top to bottom toward the inner side of the mounting plate, causing the fixing block to automatically retract inward and remain in a retracted state. Moreover, during the tilting process of the bolt with the help of the yielding clearance, the bolt is still guided within the through hole for limiting purpose, preventing unnecessary wobbling of the bolt that could affect the fixing block's smooth sliding and inward retraction on the mounting plate. As a result, there is no need to manually press the fixing block with force to retract it during installation. Compared with existing technology, this faucet mounting assembly eliminates finger discomfort caused by pressing the fixing block firmly during the installation process.

[0011] Therefore, this faucet mounting assembly enables quick installation of faucets from above countertops, making the installation process convenient and efficient. The bottom structure of the mounting plate and the coordination of the yielding clearance allow the installer to drive the fixing block to retract and maintain the retracted state by rotating the bolt, without the need to press the fixing block with fingers. As a result, the comfort and convenience of the installation operation are improved.

[0012] In the above-mentioned faucet top mounting assembly, the bending portion at the bottom of the mounting plate is downwardly inclined from the outside to the inside.

[0013] The inclined design serves as a sliding guide, reducing the risk of the fixing block getting stuck at the bending portion, thereby ensuring a smooth installation process without the need to operate the fixing block with fingers. This enhances both the comfort and convenience of the installation. Furthermore, the inclined design prevents the water pipes of the faucet from getting caught at the bending portion during installation.

[0014] In the above-mentioned faucet top mounting assembly, the mounting plate has a slit arranged along the sliding direction of the fixing block. The slit penetrates through a bottom surface of the mounting plate. The fixing block passes through the slit, and at least one side of the fixing block facing the mounting plate comprises both an inner limiting part and an outer limiting part arranged oppositely. A side edge of the mounting plate at the slit is embedded between the inner limiting part and the outer limiting part of a corresponding side of the fixing block.

[0015] The fixing block is positioned within the slit, and circumferentially positioned by two side edges of the mounting plate at the slit. The side edge of the mounting plate at the slit is embedded between the inner limiting part and the outer limiting part, ensuring radial positioning of the fixing block through the inner and outer limiting parts. This arrangement allows the fixing block to achieve a sliding positioning connection on the mounting plate. When the fixing block slides to the bottom of the mounting plate, it remains in a retracted state, ensuring both comfort and convenience of the installation process. Moreover, this design is simple in structure, easy to manufacture, and effectively ensures smooth sliding performance. In the above-mentioned faucet top mounting assembly, a side of the outer limiting part facing the inner limiting part is " "-shaped in a vertical direction and projects toward the inner limiting part, with a transition at a middle corner being arc-shaped. A side of the inner limiting part facing the outer limiting part forms an inwardly inclined surface, which is inclined toward the inner side of the mounting plate from a top surface to a bottom surface of the fixing block. A top surface and a bottom surface of the inner limiting part transition smoothly into the inwardly inclined surface with rounded arcs.

[0016] This design reduces interference as the fixing block slides along the bottom of the mounting plate, ensuring smooth sliding during the installation process. It enhances the comfort and convenience of the installation operation.

[0017] In the above-mentioned faucet top mounting assembly, a wall surface of the through hole at a side closer to the center of the base is half-conical, with a small diameter at the top and a large diameter at the bottom, while a wall surface of the through hole at a side farther from the center of the base is half-cylindrical.

[0018] A yielding clearance is formed between the rod of the bolt and the wall surface of the through hole. When the fixing block slides to the bottom of the mounting plate, a head of the bolt undergoes slight movement, causing the bottom end of the bolt to tilt inward toward the mounting plate. This tilt allows the fixing block to remain in a retracted state, thereby ensuring comfort and convenience during the installation process.

[0019] In the above-mentioned faucet top mounting assembly, the mounting plate is arched, and has a recessed wall below the bottom bend. The recessed wall is a flat plate.

[0020] When the mounting plate is designed with an arched shape, a gap is provided between two sides on the mounting plate in a circumferential direction of the base. This gap allows the faucet's water pipe connectors to pass through the mounting plate without getting stuck at the recessed wall. This ensures a smooth installation process and enhances the convenience of faucet installation. Additionally, the arc-shaped mounting plate facilitates radial positioning with the countertop's mounting hole, ensuring the base is securely fixed to the countertop. The recessed wall, designed as a flat plate, further improves the stability of the fixing block when it remains in the retracted state.

[0021] In the above-mentioned faucet top mounting assembly, the recessed wall comprises ribs at a side edge of the slit. The ribs protrude towards the inner side of the mounting plate.

[0022] The ribs increase the thickness of the side edge of the recessed wall at the slit, enhancing the structural strength of the recessed wall. This design reinforces the stability of the mounting plate, ensuring the fixing block slides smoothly and remains securely positioned.

[0023] In the above-mentioned faucet top mounting assembly, the mounting plate forms an inclined wall at the bending portion, with arc-shaped transitions at both a top end and a bottom end of the inclined wall. This design ensures that the fixing block can slide smoothly along the inclined wall and into the retracted section. As a result, the fixing block automatically retracts and extends with the rotation of the bolt, eliminating the need to operate the fixing block with fingers. As a result, the comfort and convenience of the installation process are enhanced.

[0024] In the above-mentioned faucet top mounting assembly, the fixing block comprises an inner limiting part and an outer limiting part on each of two sides facing the mounting plate. Two side edges of the mounting plate at the slit are respectively embedded between the inner limiting parts and the outer limiting parts of the two corresponding sides of the fixing block.

[0025] This design achieves the positioning of the fixing block at both sides, providing more stable positioning while evenly distributing the applied force. It prevents excessive stress on the mounting plate that could lead to cracking, and stops the fixing block from detaching outward from the recessed wall. By eliminating the need to press the fixing block with fingers, it enhances the comfort and convenience of the installation process.

[0026] In the above-mentioned faucet top mounting assembly, there are two bolts, and each bolt is connected to the fixing block. This configuration allows the two fixing blocks to create two fixed points with the countertop, providing enhanced stability for securing the base and faucet to the countertop.

[0027] In the above-mentioned faucet top mounting assembly, the bottom end of the bolt is fitted and fixed with a locking cap. The locking cap is designed to prevent the fixing block from detaching from the bottom end of the bolt, ensuring that the fixing block remains retracted through the recessed wall during the installation process. This design ensures comfortable and convenient installation.

[0028] Compared with the existing technology, the present disclosure has the following advantages: The bottom structure of the mounting plate and the coordination with the yielding clearance allow the fixing block to be retracted and positioned through the bottom structure of the mounting plate, eliminating the need to press the fixing block with fingers. This improves the comfort and convenience of the installation process. The inclined design at the bending portion forms a sliding guide, ensuring that the fixing block slides smoothly to the bottom of the mounting plate, further enhancing the comfort and convenience of installation. The mounting plate is provided with a slit. The fixing block is positioned through the slit and clamped by the inner and outer limiting parts. The structure is simple and easy to manufacture, ensuring both smooth movement and stable positioning.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of the first embodiment of the present faucet top mounting assembly. Figure 2 is a front view of the first embodiment of the present faucet top mounting assembly. Figure 3 is a cross-sectional view of Section A-A in Figure 2. Figure 4 is a cross-sectional view of Section B-B in Figure 3. Figure 5 is a perspective view of the inverted mounting sleeve in the first embodiment of the present faucet top mounting assembly. Figure 6 is a perspective view of a fixing block in the first embodiment of the present faucet top mounting assembly. Figure 7 is another perspective view of the fixing block in the first embodiment of the present faucet top mounting assembly. Figure 8 is a sectional view of the first embodiment of the present faucet top mounting assembly with the fixing block located at a recessed wall.

[0030] Wherein, 1- mounting sleeve; 1a- base; 1a1- insertion part; 1a2- yielding surface; 1a3-through hole; 1b- mounting plate; 1b1- gap; 1b2- slit; 1b3- inclined wall; 1b4- recessed wall; 1b5- rib; 2- fixing block; 2a- inner limiting part; 2a1- inwardly inclined surface; 2b- outer limiting part; 2b1- upper inclined surface; 2b2- lower inclined surface; 3- bolt; 4- gasket; 5- locking cap; 6- yielding clearance.DETAILED DESCRIPTION OF EMBODIMENTS

[0031] The following are specific embodiments of the present disclosure, which, in conjunction with the accompanying drawings, provide further descriptions of the technical solutions of the present disclosure. However, the present disclosure is not limited to these embodiments.Embodiment 1:

[0032] As shown in Figures 1 and 2, a faucet top mounting assembly comprises a cylindrical mounting sleeve 1. The mounting sleeve 1 comprises a cylindrical base 1a and a plate-like mounting plate 1b. The mounting plate 1b is integrally connected to an inner edge of a bottom surface of the base 1a. The mounting plate 1b is arranged vertically. A gasket 4 is installed at an outer side of the mounting plate 1b, and the gasket 4 rests against a bottom surface of the base 1a. Two bolts 3 pass through the base 1a. Each bolt 3 is threadedly connected to a fixing block 2. The fixing block 2 works together with the base 1a to clamp a countertop. The fixing block 2 is positioned below the base 1a. A bottom end of the bolt 3 is threadedly connected to a locking cap 5. The locking cap 5 is used to prevent the fixing block 2 from detaching from the bottom end of the bolt 3. As shown in Figure 3, the mounting plate 1b is arched, and it is arranged concentrically with the base 1a. A gap 1b1 is formed between two sides of the mounting plate 1b in a circumferential direction of the base 1a.

[0033] As shown in Figures 1 and 4, the bottom of the mounting plate 1b is bent inward from the outside, forming an inclined wall 1b3 at the bending portion. The inclined wall 1b3 is set to incline inward from top to bottom. At the bottom of the mounting plate 1b, there is a recessed wall 1b4 below the inclined wall 1b3. The recessed wall 1b4 has a shape of a flat plate, and is parallel to the centerline of the base 1a. A top end and a bottom end of the inclined wall 1b3 on the mounting plate 1b feature smooth arc-shaped transitions. An inner side of the mounting plate 1b refers to the space near the centerline of the base 1a, while an outer side refers to the space farther from the centerline of the base 1a. As shown in Figures 3 and 8, the fixing block 2 is connected to the mounting plate 1b and can slide up and down vertically along the mounting plate 1b. The fixing block 2 can slide to the bottom of the mounting plate 1b and remain in a connected state.

[0034] As shown in Figures 1 and 5, the mounting plate 1b is provided with slits 1b2 along the sliding direction of the fixing block 2. There are two slits 1b2, each corresponding to a fixing block 2. An upper end of the slit 1b2 extends to the bottom surface of the base 1a, while a lower end penetrates a bottom surface of the mounting plate 1b. Side edges of the recessed wall 1b4 at the slits 1b2 comprise ribs 1b5 protruding towards the inner side of the mounting plate 1b. As shown in Figure 3, each fixing block 2 passes through its corresponding slit 1b2, and each of two sides of the fixing block 2 facing the mounting plate 1b is provided with an inner limiting part 2a and an outer limiting part 2b. Side edges of the mounting plate 1b at the slits 1b2 are embedded between the inner limiting parts 2a and outer limiting parts 2b at corresponding sides of the fixing blocks 2. The inner limiting part 2a is positioned at the inner side of the mounting plate 1b, while the outer limiting part 2b is positioned at the outer side of the mounting plate 1b. As shown in Figures 4 and 6, a side of the outer limiting part 2b facing the inner limiting part 2a is " "-shaped in the vertical direction and projects toward the inner limiting part 2a. The outer limiting part 2b has an upper inclined surface 2b1 facing the base 1a and a lower inclined surface 2b2 facing away from the base 1a. The upper and lower inclined surfaces 2b1 and 2b2 are connected by an arc-shaped transition. An upper surface of the fixing block 2 is provided with an anti-slip straight pattern to increase the static friction between the fixing block 2 and the countertop, thereby ensuring the stable clamping of the fixing block 2 and the base 1a on the countertop. As shown in Figures 4 and 7, an inwardly inclined surface 2a1 is a side of the inner limiting part 2a that faces the outer limiting part 2b. The inwardly inclined surface 2a1 is inclined towards the inner side of the mounting plate 1b from a top surface to a bottom surface of the fixing block 2. A top surface and a bottom surface of the inner limiting part 2a transition smoothly into the inwardly inclined surface 2a1 through arcs.

[0035] As shown in Figures 4 and 8, an inner side of the base 1a is provided with an insertion part 1a1. Through holes 1a3 are provided in the insertion part 1a1 along the vertical direction. A rod of the bolt 3 passes through the through hole 1a3, and a head of the bolt 3 can rest against a top surface of the insertion part 1a1. A yielding clearance 6 is formed between a wall surface of the through hole 1a3 and the rod of the bolt 3. The yielding clearance allows for the tilting of the bolt 3 when the bottom end of the bolt 3 moves toward the inner side of the mounting plate 1b. The specific structure of the yielding clearance 6 is as follows: A yielding surface 1a2 is formed by the wall surface of the through hole 1a3 at a side closer to the center of the base 1a. The yielding surface is half-conical, with a small diameter at the top and a large diameter at the bottom. A wall surface of the through hole 1a3 at a side farther from the center of the base 1a is half-cylindrical. The yielding surface 1a2 and the rod of the bolt 3 form the yielding clearance 6. When the bottom end of the bolt 3 tilts toward the inner side of the mounting plate 1b, the bolt 3 is able to tilt toward the yielding surface 1a2.

[0036] Mounting holes in the countertop are usually drilled at a construction site or a countertop processing factory according to a size of the faucet and its accessories purchased or selected by a customer. The size of the mounting hole should allow the fixing blocks 2 to pass through when the fixing blocks are at the position of the recessd wall 1b4, while a bottom outer edge of the base 1a should not pass through. The fixing block 2 is connected to the mounting plate 1b by a sliding positional connection. At the same time, the fixing block 2 is fitted and threaded onto the bolt 3. As a result, when the bolt 3 is rotated, the fixing block 2 is driven to slide up and down along the mounting plate 1b. During faucet installation, the first step is to rotate the two bolts 3, driving the two fixing blocks 2 to slide along the mounting plate 1b to the position of the recessed wall 1b4, as shown in Figure 8. At this point, the fixing blocks 2 are retracted relative to the base 1a, and the bottom outer edge of the base 1a protrudes beyond the outer side of the fixing blocks 2. Next, the bottom of the mounting plate 1b and the bolts 3 are inserted into the mounting hole of the countertop. Once the gasket 4 beneath the base 1a contacts an upper surface of the countertop, the two bolts 3 are rotated sequentially, driving the fixing blocks 2 to slide upward along the mounting plate 1b. The fixing blocks 2 move away from the recessed wall 1b4 and the inclined wall 1b3, and extend outward along the mounting plate 1b. Continue rotating the bolts 3 until the fixing blocks 2 rest against a bottom surface of the countertop. The fixing blocks 2 and base 1a work together to clamp and secure the faucet mounting assembly to the countertop. Finally, water pipes of the faucet are passed through the base 1a, and a faucet housing is connected to the base 1a to complete the faucet installation.

[0037] Due to the outside-to-inside bending at the bottom of the mounting plate 1b and the coordination with the yielding clearance 6, when the fixing block 2 slides through the inclined wall 1b3 to the recessed wall 1b4, the fixing block 2 not only slides downward but also inward toward the mounting plate 1b. This allows the fixing block 2 to retract and maintain its retracted state through the recessed wall 1b4. As a result, during installation, there is no need to apply force to press the fixing block 2 into the retracted position and keep it retracted. Compared with existing technology, this faucet mounting assembly eliminates finger discomfort caused by pressing the fixing block firmly during the installation process. Therefore, this faucet mounting assembly enables quick installation of faucets from above countertops, making the installation process convenient and efficient. The bottom structure of the mounting plate 1b and the coordination of the yielding clearance 6 allow the fixing block 2 to retract and maintain the retracted state, without the need to press the fixing block with fingers. As a result, the comfort and convenience of the installation operation are improved.Embodiment 2:

[0038] In this embodiment, the sliding positioning connection structure between the mounting plate 1b and the fixing block 2 is different, while other configurations remain the same as in the first embodiment. Each fixing block 2 comprises protruding sliding columns on both sides of the base 1a in the circumferential direction. The sliding columns are cylindrical in shape. Corresponding to each sliding column, the mounting plate 1b is provided with a sliding rail. The sliding rail is oriented along the sliding direction of the fixing block 2, and has a U-shaped cross section. A section of the sliding rail at the bottom of the mounting plate 1b is positioned at the retracted wall 1b4. The two sliding columns of each fixing block 2 are inserted into their respective sliding rails and can slide along the sliding rails, thereby achieving a sliding positioning connection. The sliding rail can be provided at the slit 1b2 or on an outer side surface of the mounting plate 1b. In this embodiment, since the cylindrical sliding columns experience little interference, the bending portion can be formed with an inclined wall 1b3. A section of the sliding rail is located at the inclined wall 1b3. The inclined wall 1b3 can also be replaced by a vertical wall. The vertical wall can be positioned perpendicular to the retracted wall 1b4, replacing the inclined wall 1b3.Embodiment 3:

[0039] The position of the yielding clearance 6 differs from that in the first embodiment, while other configurations remain the same as in the first embodiment. The wall surface of the through hole 1a3 at the side farther from the center of the base 1a is half-conical, with a large diameter at the top and a small diameter at the bottom. At the side of the through hole 1a3 closer to the center of the base 1a, the wall surface is cylindrical. The yielding clearance 6 is formed between the half-conical wall surface of the through hole 1a3 and the rod of the bolt 3.Embodiment 4:

[0040] One bolt 3 and one fixing block 2 are provided on the base 1a. This configuration can still secure the mounting assembly to the countertop, but the fixation effect is not as good as in Embodiment 1.Embodiment 5:

[0041] Each fixing block 2 is provided with one inner limiting part 2a and one outer limiting part 2b at only one side, with other configurations the same as in the first embodiment. This configuration can also achieve a sliding positioning connection between the fixing block 2 and the mounting plate 1b. However, when the bolt 3 rotates and drives the fixing block 2 to slide, the side edge of the mounting plate 1b at the slit 1b2 needs to withstand greater torsional force.

[0042] Although only a number of examples have been disclosed herein, other alternatives, modifications, uses and / or equivalents of the present faucet top mounting assembly are possible. The scope of the present disclosure should not be limited by the particular examples but should be determined only by a fair reading of the claims that follow.

[0043] Reference signs related to drawings are placed in parentheses in the claims are solely for attempting to increase the intelligibility and shall not be construed as limiting the scope of the claim.

Examples

embodiment 1

[0032]As shown in Figures 1 and 2, a faucet top mounting assembly comprises a cylindrical mounting sleeve 1. The mounting sleeve 1 comprises a cylindrical base 1a and a plate-like mounting plate 1b. The mounting plate 1b is integrally connected to an inner edge of a bottom surface of the base 1a. The mounting plate 1b is arranged vertically. A gasket 4 is installed at an outer side of the mounting plate 1b, and the gasket 4 rests against a bottom surface of the base 1a. Two bolts 3 pass through the base 1a. Each bolt 3 is threadedly connected to a fixing block 2. The fixing block 2 works together with the base 1a to clamp a countertop. The fixing block 2 is positioned below the base 1a. A bottom end of the bolt 3 is threadedly connected to a locking cap 5. The locking cap 5 is used to prevent the fixing block 2 from detaching from the bottom end of the bolt 3. As shown in Figure 3, the mounting plate 1b is arched, and it is arranged concentrically with the base 1a. A gap 1b1 is form...

embodiment 2

[0038]In this embodiment, the sliding positioning connection structure between the mounting plate 1b and the fixing block 2 is different, while other configurations remain the same as in the first embodiment. Each fixing block 2 comprises protruding sliding columns on both sides of the base 1a in the circumferential direction. The sliding columns are cylindrical in shape. Corresponding to each sliding column, the mounting plate 1b is provided with a sliding rail. The sliding rail is oriented along the sliding direction of the fixing block 2, and has a U-shaped cross section. A section of the sliding rail at the bottom of the mounting plate 1b is positioned at the retracted wall 1b4. The two sliding columns of each fixing block 2 are inserted into their respective sliding rails and can slide along the sliding rails, thereby achieving a sliding positioning connection. The sliding rail can be provided at the slit 1b2 or on an outer side surface of the mounting plate 1b. In this embodim...

embodiment 3

[0039]The position of the yielding clearance 6 differs from that in the first embodiment, while other configurations remain the same as in the first embodiment. The wall surface of the through hole 1a3 at the side farther from the center of the base 1a is half-conical, with a large diameter at the top and a small diameter at the bottom. At the side of the through hole 1a3 closer to the center of the base 1a, the wall surface is cylindrical. The yielding clearance 6 is formed between the half-conical wall surface of the through hole 1a3 and the rod of the bolt 3.

[0001] The present disclosure relates to faucet accessories, specifically to a faucet top mounting assembly.BACKGROUND

[0002] Currently, faucets are usually fixed to countertops using bolts and nuts. During installation, bolts are first fixed to a faucet, then water pipes and the bolts are passed through a mounting hole in a countertop. Next, washers are fitted to the bolts underneath the countertop. Then nuts are fitted onto the bolts, and the nuts are tightened with a wrench. However, the limited space and poor lighting conditions underneath the countertop make the installation process inconvenient.

[0003] To facilitate faucet installation, engineers have designed mounting assemblies that allow faucets to be mounted from above countertops. For example, the Chinese patent document with publication number CN 208152161U discloses a quick mounting structure for faucet installation from above countertops. This structure comprises a fixing base, a bracket, a limiting rod, and a bolt. The fixing base is used to connect the mounting structure securely with the faucet housing. The bracket is positioned below the fixing base. The bolt passes through the fixing base and is threadedly connected to the bracket. The limiting rod is fixed to the fixing base and passes through the bracket. Clamping plates are hinged to both ends of the bracket, and torsion springs are arranged between the bracket and the clamping plates. Under the action of the torsion springs, the clamping plates expand outward relative to the bracket.

[0004] When mounting a faucet, the first step is to use fingers to press inward on the clamping plates at both ends of the bracket to overcome the tension of the torsion springs, thereby bringing the two clamping plates closer together. Then while maintaining the finger pressure on the clamping plates, insert the clamping plates and the bracket through a mounting hole in the countertop, with the fixing base positioned above the countertop. After the clamping plates and bracket fully pass through the mounting hole, the two clamping plates expand outward relative to the bracket under the action of the torsion springs. Next, use a wrench to rotate the bolt, driving the bracket upward until the clamping plates press against the underside of the countertop, thereby fixing the fixing base to the countertop. Finally, the faucet is placed and fixed to the fixing base.

[0005] Using the above-mentioned quick mounting structure allows for faucet installation from above countertops. However, during installation, installers must press the clamping plates inward with their fingers to overcome the tension of the torsion springs. Additionally, installers need to maintain this pressure for a period of time, which can easily cause finger discomfort. As a result, there are still shortcomings in operational comfort and convenience. To improve installation comfort, a common approach is to add rubber pads to the clamping plates or use torsion springs with a lower elastic modulus. While adding rubber pads is straightforward, it increases costs. On the other hand, using torsion springs with a lower elastic modulus may result in the clamping plates failing to expand smoothly into place.DISCLOSURE SUMMARY

[0006] The present disclosure aims to address the above-mentioned issues in existing technology by providing a faucet top mounting assembly. This solution resolves the technical problem of insufficient operational comfort in current top mounting assemblies.

[0007] The purpose of this disclosure can be achieved through the following technical solution: A faucet top mounting assembly comprises a cylindrical base and a fixing block. The base and the fixing block are configured to work together to clamp a countertop. The base comprises a vertically arranged through hole for a bolt to pass through. The fixing block is threadedly connected to the bolt. A mounting plate is vertically arranged at a bottom end of the base. The fixing block is connected to the mounting plate and can slide up and down along the mounting plate. The mounting plate is plate-like, with a bottom portion bent inward from the outside. There is a yielding clearance formed between a wall surface of the through hole and a rod of the bolt. The yielding clearance is configured in such as way that the bolt is capable of tilting when a bottom end of the bolt moves toward an inner side of the mounting plate.

[0008] The inner side of the mounting plate refers to a space at a side of the mounting plate that is closer to the centerline of the base. The up-and-down sliding of the fixing block refers to a movement of the fixing block in a direction from a bottom to a top (i.e., upward) and in a direction from the top to the bottom (i.e., downward) along the mounting plate. Since the fixing block is connected to the mounting plate and is threaded onto the bolt, rotating the bolt drives the fixing block to slide up and down along the mounting plate.

[0009] Mounting holes in the countertop are usually drilled at a construction site or a countertop processing factory according to a size of the faucet and its accessories purchased or selected by a customer. The size of the mounting hole must allow the fixing block to pass through when the fixing block is positioned at a bottom of the mounting plate, while preventing an outer edge of a base bottom from passing through. At the construction site, the countertop is fixed first, and then the faucet is installed. During faucet installation, the first step is to rotate the bolt, allowing the fixing block to slide along the mounting plate to the bottom of the mounting plate. At this point, the bottom end of the bolt moves inward, and the bolt tilts slightly due to the yielding clearance, allowing the fixing block to retract towards the inner side of the mounting plate. Next, insert the mounting plate and the bottom of the bolt into the mounting hole in the countertop. Once the base rests against an upper surface of the countertop, rotate the bolt to slide the fixing block upward along the mounting plate, so that the fixing block extends outward from the mounting plate. The bolt then returns to its original position. Continue rotating the bolt until the fixing block presses against a bottom surface of the countertop. The fixing block and the base work together to clamp and secure the faucet mounting assembly to the countertop. Finally, pass water pipes of the faucet through the base and connect a faucet housing to the base to complete the faucet installation.

[0010] Due to the outside-to-inside bending at the bottom of the mounting plate and the coordination with the yielding clearance, while the fixing block slides along the mounting plate to its bottom through rotating the bolt, the bolt at the same time tilts from top to bottom toward the inner side of the mounting plate, causing the fixing block to automatically retract inward and remain in a retracted state. Moreover, during the tilting process of the bolt with the help of the yielding clearance, the bolt is still guided within the through hole for limiting purpose, preventing unnecessary wobbling of the bolt that could affect the fixing block's smooth sliding and inward retraction on the mounting plate. As a result, there is no need to manually press the fixing block with force to retract it during installation. Compared with existing technology, this faucet mounting assembly eliminates finger discomfort caused by pressing the fixing block firmly during the installation process.

[0011] Therefore, this faucet mounting assembly enables quick installation of faucets from above countertops, making the installation process convenient and efficient. The bottom structure of the mounting plate and the coordination of the yielding clearance allow the installer to drive the fixing block to retract and maintain the retracted state by rotating the bolt, without the need to press the fixing block with fingers. As a result, the comfort and convenience of the installation operation are improved.

[0012] In the above-mentioned faucet top mounting assembly, the bending portion at the bottom of the mounting plate is downwardly inclined from the outside to the inside.

[0013] The inclined design serves as a sliding guide, reducing the risk of the fixing block getting stuck at the bending portion, thereby ensuring a smooth installation process without the need to operate the fixing block with fingers. This enhances both the comfort and convenience of the installation. Furthermore, the inclined design prevents the water pipes of the faucet from getting caught at the bending portion during installation.

[0014] In the above-mentioned faucet top mounting assembly, the mounting plate has a slit arranged along the sliding direction of the fixing block. The slit penetrates through a bottom surface of the mounting plate. The fixing block passes through the slit, and at least one side of the fixing block facing the mounting plate comprises both an inner limiting part and an outer limiting part arranged oppositely. A side edge of the mounting plate at the slit is embedded between the inner limiting part and the outer limiting part of a corresponding side of the fixing block.

[0015] The fixing block is positioned within the slit, and circumferentially positioned by two side edges of the mounting plate at the slit. The side edge of the mounting plate at the slit is embedded between the inner limiting part and the outer limiting part, ensuring radial positioning of the fixing block through the inner and outer limiting parts. This arrangement allows the fixing block to achieve a sliding positioning connection on the mounting plate. When the fixing block slides to the bottom of the mounting plate, it remains in a retracted state, ensuring both comfort and convenience of the installation process. Moreover, this design is simple in structure, easy to manufacture, and effectively ensures smooth sliding performance. In the above-mentioned faucet top mounting assembly, a side of the outer limiting part facing the inner limiting part is " "-shaped in a vertical direction and projects toward the inner limiting part, with a transition at a middle corner being arc-shaped. A side of the inner limiting part facing the outer limiting part forms an inwardly inclined surface, which is inclined toward the inner side of the mounting plate from a top surface to a bottom surface of the fixing block. A top surface and a bottom surface of the inner limiting part transition smoothly into the inwardly inclined surface with rounded arcs.

[0016] This design reduces interference as the fixing block slides along the bottom of the mounting plate, ensuring smooth sliding during the installation process. It enhances the comfort and convenience of the installation operation.

[0017] In the above-mentioned faucet top mounting assembly, a wall surface of the through hole at a side closer to the center of the base is half-conical, with a small diameter at the top and a large diameter at the bottom, while a wall surface of the through hole at a side farther from the center of the base is half-cylindrical.

[0018] A yielding clearance is formed between the rod of the bolt and the wall surface of the through hole. When the fixing block slides to the bottom of the mounting plate, a head of the bolt undergoes slight movement, causing the bottom end of the bolt to tilt inward toward the mounting plate. This tilt allows the fixing block to remain in a retracted state, thereby ensuring comfort and convenience during the installation process.

[0019] In the above-mentioned faucet top mounting assembly, the mounting plate is arched, and has a recessed wall below the bottom bend. The recessed wall is a flat plate.

[0020] When the mounting plate is designed with an arched shape, a gap is provided between two sides on the mounting plate in a circumferential direction of the base. This gap allows the faucet's water pipe connectors to pass through the mounting plate without getting stuck at the recessed wall. This ensures a smooth installation process and enhances the convenience of faucet installation. Additionally, the arc-shaped mounting plate facilitates radial positioning with the countertop's mounting hole, ensuring the base is securely fixed to the countertop. The recessed wall, designed as a flat plate, further improves the stability of the fixing block when it remains in the retracted state.

[0021] In the above-mentioned faucet top mounting assembly, the recessed wall comprises ribs at a side edge of the slit. The ribs protrude towards the inner side of the mounting plate.

[0022] The ribs increase the thickness of the side edge of the recessed wall at the slit, enhancing the structural strength of the recessed wall. This design reinforces the stability of the mounting plate, ensuring the fixing block slides smoothly and remains securely positioned.

[0023] In the above-mentioned faucet top mounting assembly, the mounting plate forms an inclined wall at the bending portion, with arc-shaped transitions at both a top end and a bottom end of the inclined wall. This design ensures that the fixing block can slide smoothly along the inclined wall and into the retracted section. As a result, the fixing block automatically retracts and extends with the rotation of the bolt, eliminating the need to operate the fixing block with fingers. As a result, the comfort and convenience of the installation process are enhanced.

[0024] In the above-mentioned faucet top mounting assembly, the fixing block comprises an inner limiting part and an outer limiting part on each of two sides facing the mounting plate. Two side edges of the mounting plate at the slit are respectively embedded between the inner limiting parts and the outer limiting parts of the two corresponding sides of the fixing block.

[0025] This design achieves the positioning of the fixing block at both sides, providing more stable positioning while evenly distributing the applied force. It prevents excessive stress on the mounting plate that could lead to cracking, and stops the fixing block from detaching outward from the recessed wall. By eliminating the need to press the fixing block with fingers, it enhances the comfort and convenience of the installation process.

[0026] In the above-mentioned faucet top mounting assembly, there are two bolts, and each bolt is connected to the fixing block. This configuration allows the two fixing blocks to create two fixed points with the countertop, providing enhanced stability for securing the base and faucet to the countertop.

[0027] In the above-mentioned faucet top mounting assembly, the bottom end of the bolt is fitted and fixed with a locking cap. The locking cap is designed to prevent the fixing block from detaching from the bottom end of the bolt, ensuring that the fixing block remains retracted through the recessed wall during the installation process. This design ensures comfortable and convenient installation.

[0028] Compared with the existing technology, the present disclosure has the following advantages: The bottom structure of the mounting plate and the coordination with the yielding clearance allow the fixing block to be retracted and positioned through the bottom structure of the mounting plate, eliminating the need to press the fixing block with fingers. This improves the comfort and convenience of the installation process. The inclined design at the bending portion forms a sliding guide, ensuring that the fixing block slides smoothly to the bottom of the mounting plate, further enhancing the comfort and convenience of installation. The mounting plate is provided with a slit. The fixing block is positioned through the slit and clamped by the inner and outer limiting parts. The structure is simple and easy to manufacture, ensuring both smooth movement and stable positioning.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of the first embodiment of the present faucet top mounting assembly. Figure 2 is a front view of the first embodiment of the present faucet top mounting assembly. Figure 3 is a cross-sectional view of Section A-A in Figure 2. Figure 4 is a cross-sectional view of Section B-B in Figure 3. Figure 5 is a perspective view of the inverted mounting sleeve in the first embodiment of the present faucet top mounting assembly. Figure 6 is a perspective view of a fixing block in the first embodiment of the present faucet top mounting assembly. Figure 7 is another perspective view of the fixing block in the first embodiment of the present faucet top mounting assembly. Figure 8 is a sectional view of the first embodiment of the present faucet top mounting assembly with the fixing block located at a recessed wall.

[0030] Wherein, 1- mounting sleeve; 1a- base; 1a1- insertion part; 1a2- yielding surface; 1a3-through hole; 1b- mounting plate; 1b1- gap; 1b2- slit; 1b3- inclined wall; 1b4- recessed wall; 1b5- rib; 2- fixing block; 2a- inner limiting part; 2a1- inwardly inclined surface; 2b- outer limiting part; 2b1- upper inclined surface; 2b2- lower inclined surface; 3- bolt; 4- gasket; 5- locking cap; 6- yielding clearance.DETAILED DESCRIPTION OF EMBODIMENTS

[0031] The following are specific embodiments of the present disclosure, which, in conjunction with the accompanying drawings, provide further descriptions of the technical solutions of the present disclosure. However, the present disclosure is not limited to these embodiments.Embodiment 1:

[0032] As shown in Figures 1 and 2, a faucet top mounting assembly comprises a cylindrical mounting sleeve 1. The mounting sleeve 1 comprises a cylindrical base 1a and a plate-like mounting plate 1b. The mounting plate 1b is integrally connected to an inner edge of a bottom surface of the base 1a. The mounting plate 1b is arranged vertically. A gasket 4 is installed at an outer side of the mounting plate 1b, and the gasket 4 rests against a bottom surface of the base 1a. Two bolts 3 pass through the base 1a. Each bolt 3 is threadedly connected to a fixing block 2. The fixing block 2 works together with the base 1a to clamp a countertop. The fixing block 2 is positioned below the base 1a. A bottom end of the bolt 3 is threadedly connected to a locking cap 5. The locking cap 5 is used to prevent the fixing block 2 from detaching from the bottom end of the bolt 3. As shown in Figure 3, the mounting plate 1b is arched, and it is arranged concentrically with the base 1a. A gap 1b1 is formed between two sides of the mounting plate 1b in a circumferential direction of the base 1a.

[0033] As shown in Figures 1 and 4, the bottom of the mounting plate 1b is bent inward from the outside, forming an inclined wall 1b3 at the bending portion. The inclined wall 1b3 is set to incline inward from top to bottom. At the bottom of the mounting plate 1b, there is a recessed wall 1b4 below the inclined wall 1b3. The recessed wall 1b4 has a shape of a flat plate, and is parallel to the centerline of the base 1a. A top end and a bottom end of the inclined wall 1b3 on the mounting plate 1b feature smooth arc-shaped transitions. An inner side of the mounting plate 1b refers to the space near the centerline of the base 1a, while an outer side refers to the space farther from the centerline of the base 1a. As shown in Figures 3 and 8, the fixing block 2 is connected to the mounting plate 1b and can slide up and down vertically along the mounting plate 1b. The fixing block 2 can slide to the bottom of the mounting plate 1b and remain in a connected state.

[0034] As shown in Figures 1 and 5, the mounting plate 1b is provided with slits 1b2 along the sliding direction of the fixing block 2. There are two slits 1b2, each corresponding to a fixing block 2. An upper end of the slit 1b2 extends to the bottom surface of the base 1a, while a lower end penetrates a bottom surface of the mounting plate 1b. Side edges of the recessed wall 1b4 at the slits 1b2 comprise ribs 1b5 protruding towards the inner side of the mounting plate 1b. As shown in Figure 3, each fixing block 2 passes through its corresponding slit 1b2, and each of two sides of the fixing block 2 facing the mounting plate 1b is provided with an inner limiting part 2a and an outer limiting part 2b. Side edges of the mounting plate 1b at the slits 1b2 are embedded between the inner limiting parts 2a and outer limiting parts 2b at corresponding sides of the fixing blocks 2. The inner limiting part 2a is positioned at the inner side of the mounting plate 1b, while the outer limiting part 2b is positioned at the outer side of the mounting plate 1b. As shown in Figures 4 and 6, a side of the outer limiting part 2b facing the inner limiting part 2a is " "-shaped in the vertical direction and projects toward the inner limiting part 2a. The outer limiting part 2b has an upper inclined surface 2b1 facing the base 1a and a lower inclined surface 2b2 facing away from the base 1a. The upper and lower inclined surfaces 2b1 and 2b2 are connected by an arc-shaped transition. An upper surface of the fixing block 2 is provided with an anti-slip straight pattern to increase the static friction between the fixing block 2 and the countertop, thereby ensuring the stable clamping of the fixing block 2 and the base 1a on the countertop. As shown in Figures 4 and 7, an inwardly inclined surface 2a1 is a side of the inner limiting part 2a that faces the outer limiting part 2b. The inwardly inclined surface 2a1 is inclined towards the inner side of the mounting plate 1b from a top surface to a bottom surface of the fixing block 2. A top surface and a bottom surface of the inner limiting part 2a transition smoothly into the inwardly inclined surface 2a1 through arcs.

[0035] As shown in Figures 4 and 8, an inner side of the base 1a is provided with an insertion part 1a1. Through holes 1a3 are provided in the insertion part 1a1 along the vertical direction. A rod of the bolt 3 passes through the through hole 1a3, and a head of the bolt 3 can rest against a top surface of the insertion part 1a1. A yielding clearance 6 is formed between a wall surface of the through hole 1a3 and the rod of the bolt 3. The yielding clearance allows for the tilting of the bolt 3 when the bottom end of the bolt 3 moves toward the inner side of the mounting plate 1b. The specific structure of the yielding clearance 6 is as follows: A yielding surface 1a2 is formed by the wall surface of the through hole 1a3 at a side closer to the center of the base 1a. The yielding surface is half-conical, with a small diameter at the top and a large diameter at the bottom. A wall surface of the through hole 1a3 at a side farther from the center of the base 1a is half-cylindrical. The yielding surface 1a2 and the rod of the bolt 3 form the yielding clearance 6. When the bottom end of the bolt 3 tilts toward the inner side of the mounting plate 1b, the bolt 3 is able to tilt toward the yielding surface 1a2.

[0036] Mounting holes in the countertop are usually drilled at a construction site or a countertop processing factory according to a size of the faucet and its accessories purchased or selected by a customer. The size of the mounting hole should allow the fixing blocks 2 to pass through when the fixing blocks are at the position of the recessd wall 1b4, while a bottom outer edge of the base 1a should not pass through. The fixing block 2 is connected to the mounting plate 1b by a sliding positional connection. At the same time, the fixing block 2 is fitted and threaded onto the bolt 3. As a result, when the bolt 3 is rotated, the fixing block 2 is driven to slide up and down along the mounting plate 1b. During faucet installation, the first step is to rotate the two bolts 3, driving the two fixing blocks 2 to slide along the mounting plate 1b to the position of the recessed wall 1b4, as shown in Figure 8. At this point, the fixing blocks 2 are retracted relative to the base 1a, and the bottom outer edge of the base 1a protrudes beyond the outer side of the fixing blocks 2. Next, the bottom of the mounting plate 1b and the bolts 3 are inserted into the mounting hole of the countertop. Once the gasket 4 beneath the base 1a contacts an upper surface of the countertop, the two bolts 3 are rotated sequentially, driving the fixing blocks 2 to slide upward along the mounting plate 1b. The fixing blocks 2 move away from the recessed wall 1b4 and the inclined wall 1b3, and extend outward along the mounting plate 1b. Continue rotating the bolts 3 until the fixing blocks 2 rest against a bottom surface of the countertop. The fixing blocks 2 and base 1a work together to clamp and secure the faucet mounting assembly to the countertop. Finally, water pipes of the faucet are passed through the base 1a, and a faucet housing is connected to the base 1a to complete the faucet installation.

[0037] Due to the outside-to-inside bending at the bottom of the mounting plate 1b and the coordination with the yielding clearance 6, when the fixing block 2 slides through the inclined wall 1b3 to the recessed wall 1b4, the fixing block 2 not only slides downward but also inward toward the mounting plate 1b. This allows the fixing block 2 to retract and maintain its retracted state through the recessed wall 1b4. As a result, during installation, there is no need to apply force to press the fixing block 2 into the retracted position and keep it retracted. Compared with existing technology, this faucet mounting assembly eliminates finger discomfort caused by pressing the fixing block firmly during the installation process. Therefore, this faucet mounting assembly enables quick installation of faucets from above countertops, making the installation process convenient and efficient. The bottom structure of the mounting plate 1b and the coordination of the yielding clearance 6 allow the fixing block 2 to retract and maintain the retracted state, without the need to press the fixing block with fingers. As a result, the comfort and convenience of the installation operation are improved.Embodiment 2:

[0038] In this embodiment, the sliding positioning connection structure between the mounting plate 1b and the fixing block 2 is different, while other configurations remain the same as in the first embodiment. Each fixing block 2 comprises protruding sliding columns on both sides of the base 1a in the circumferential direction. The sliding columns are cylindrical in shape. Corresponding to each sliding column, the mounting plate 1b is provided with a sliding rail. The sliding rail is oriented along the sliding direction of the fixing block 2, and has a U-shaped cross section. A section of the sliding rail at the bottom of the mounting plate 1b is positioned at the retracted wall 1b4. The two sliding columns of each fixing block 2 are inserted into their respective sliding rails and can slide along the sliding rails, thereby achieving a sliding positioning connection. The sliding rail can be provided at the slit 1b2 or on an outer side surface of the mounting plate 1b. In this embodiment, since the cylindrical sliding columns experience little interference, the bending portion can be formed with an inclined wall 1b3. A section of the sliding rail is located at the inclined wall 1b3. The inclined wall 1b3 can also be replaced by a vertical wall. The vertical wall can be positioned perpendicular to the retracted wall 1b4, replacing the inclined wall 1b3.Embodiment 3:

[0039] The position of the yielding clearance 6 differs from that in the first embodiment, while other configurations remain the same as in the first embodiment. The wall surface of the through hole 1a3 at the side farther from the center of the base 1a is half-conical, with a large diameter at the top and a small diameter at the bottom. At the side of the through hole 1a3 closer to the center of the base 1a, the wall surface is cylindrical. The yielding clearance 6 is formed between the half-conical wall surface of the through hole 1a3 and the rod of the bolt 3.Embodiment 4:

[0040] One bolt 3 and one fixing block 2 are provided on the base 1a. This configuration can still secure the mounting assembly to the countertop, but the fixation effect is not as good as in Embodiment 1.Embodiment 5:

[0041] Each fixing block 2 is provided with one inner limiting part 2a and one outer limiting part 2b at only one side, with other configurations the same as in the first embodiment. This configuration can also achieve a sliding positioning connection between the fixing block 2 and the mounting plate 1b. However, when the bolt 3 rotates and drives the fixing block 2 to slide, the side edge of the mounting plate 1b at the slit 1b2 needs to withstand greater torsional force.

[0042] Although only a number of examples have been disclosed herein, other alternatives, modifications, uses and / or equivalents of the present faucet top mounting assembly are possible. The scope of the present disclosure should not be limited by the particular examples but should be determined only by a fair reading of the claims that follow.

[0043] Reference signs related to drawings are placed in parentheses in the claims are solely for attempting to increase the intelligibility and shall not be construed as limiting the scope of the claim.

Examples

embodiment 1

[0032]As shown in Figures 1 and 2, a faucet top mounting assembly comprises a cylindrical mounting sleeve 1. The mounting sleeve 1 comprises a cylindrical base 1a and a plate-like mounting plate 1b. The mounting plate 1b is integrally connected to an inner edge of a bottom surface of the base 1a. The mounting plate 1b is arranged vertically. A gasket 4 is installed at an outer side of the mounting plate 1b, and the gasket 4 rests against a bottom surface of the base 1a. Two bolts 3 pass through the base 1a. Each bolt 3 is threadedly connected to a fixing block 2. The fixing block 2 works together with the base 1a to clamp a countertop. The fixing block 2 is positioned below the base 1a. A bottom end of the bolt 3 is threadedly connected to a locking cap 5. The locking cap 5 is used to prevent the fixing block 2 from detaching from the bottom end of the bolt 3. As shown in Figure 3, the mounting plate 1b is arched, and it is arranged concentrically with the base 1a. A gap 1b1 is form...

embodiment 2

[0038]In this embodiment, the sliding positioning connection structure between the mounting plate 1b and the fixing block 2 is different, while other configurations remain the same as in the first embodiment. Each fixing block 2 comprises protruding sliding columns on both sides of the base 1a in the circumferential direction. The sliding columns are cylindrical in shape. Corresponding to each sliding column, the mounting plate 1b is provided with a sliding rail. The sliding rail is oriented along the sliding direction of the fixing block 2, and has a U-shaped cross section. A section of the sliding rail at the bottom of the mounting plate 1b is positioned at the retracted wall 1b4. The two sliding columns of each fixing block 2 are inserted into their respective sliding rails and can slide along the sliding rails, thereby achieving a sliding positioning connection. The sliding rail can be provided at the slit 1b2 or on an outer side surface of the mounting plate 1b. In this embodim...

embodiment 3

[0039]The position of the yielding clearance 6 differs from that in the first embodiment, while other configurations remain the same as in the first embodiment. The wall surface of the through hole 1a3 at the side farther from the center of the base 1a is half-conical, with a large diameter at the top and a small diameter at the bottom. At the side of the through hole 1a3 closer to the center of the base 1a, the wall surface is cylindrical. The yielding clearance 6 is formed between the half-conical wall surface of the through hole 1a3 and the rod of the bolt 3.

Claims

1. A faucet top mounting assembly, comprising a cylindrical base (1a) and a fixing block (2), the base (1a) and the fixing block (2) being configured to work together to clamp a countertop, the base (1a) comprising a vertically arranged through hole (1a3) for a bolt (3) to pass through, the fixing block (2) being threadedly connected to the bolt (3), characterized in that a mounting plate (1b) is vertically arranged at a bottom end of the base (1a), the fixing block (2) being connected to the mounting plate (1b) and being capable of sliding up and down along the mounting plate (1b), the mounting plate (1b) being plate-shaped with a bottom portion being bent inward from the outside, and a yielding clearance (6) being formed between a wall surface of the through hole (1a3) and a rod of the bolt (3), wherein the yielding clearance (6) is configured such that the bolt (3) is capable of tilting when a bottom end of the bolt (3) moves towards an inner side of the mounting plate (1b).

2. The faucet top mounting assembly according to claim 1, characterized in that the bending portion at the bottom of the mounting plate (1b) is downwardly inclined from the outside to the inside.

3. The faucet top mounting assembly according to claim 2, characterized in that the mounting plate (1b) has a slit (1b2) arranged along a sliding direction of the fixing block (2), the slit (1b2) penetrating through a bottom surface of the mounting plate (1b), the fixing block (2) being configured to pass through the slit (1b2), and at least one side of the fixing block (2) facing the mounting plate (1b) comprising an inner limiting part (2a) and an outer limiting part (2b) arranged oppositely, wherein a side edge of the mounting plate (1b) at the slit (1b2) is embedded between the inner limiting part (2a) and the outer limiting part (2b) of a corresponding side of the fixing block (2).

4. The faucet top mounting assembly according to claim 3, characterized in that a side of the outer limiting part (2b) facing the inner limiting part (2a) is " "-shaped in a vertical direction and projects toward the inner limiting part (2a), with a transition at a middle corner being arc-shaped; a side of the inner limiting part (2a) facing the outer limiting part (2b) forming an inwardly inclined surface (2a1), wherein the inwardly inclined surface (2a1) is inclined inward toward the mounting plate (1b) from a top surface to a bottom surface of the fixing block (2); while a top surface and a bottom surface of the inner limiting part (2a) transition smoothly into the inwardly inclined surface (2a1) with a rounded arc.

5. The faucet top mounting assembly according to any one of claims 1 to 4, characterized in that a wall surface of the through hole (1a3) at a side closer to the center of the base (1a) is half-conical, with a small diameter at a top and a large diameter at a bottom, while a wall surface of the through hole (1a3) at a side farther from the center of the base (1a) is half-cylindrical.

6. The faucet top mounting assembly according to claim 3 or 4, characterized in that the mounting plate (1b) is arched, and comprises a recessed wall (1b4) below the bending portion at the bottom, wherein the recessed wall (1b4) is a flat plate.

7. The faucet top mounting assembly according to claim 6, characterized in that the recessed wall (1b4) comprises ribs (1b5) at a side edge of the slit (1b2), wherein the ribs (1b5) protrude towards the inner side of the mounting plate (1b).

8. The faucet top mounting assembly according to claim 3 or 4, characterized in that the fixing block (2) comprises an inner limiting part (2a) and an outer limiting part (2b) on each of two sides facing the mounting plate (1b), wherein two side edges of the mounting plate (1b) at the slit (1b2) are respectively embedded between the inner limiting parts (2a) and the outer limiting parts (2b) of two corresponding sides of the fixing block (2).

9. The faucet top mounting assembly according to any one of claims 1 to 4, characterized in that there are two bolts (3), and each bolt (3) is connected to the fixing block (2).

10. The faucet top mounting assembly according to any one of claims 1 to 4, characterized in that the bottom end of the bolt (3) is fitted and fixed with a locking cap (5).

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