A handle mounting structure of a water nozzle configured with a lock spring

Abstract

The application discloses a water nozzle handle mounting structure provided with an anti-loosening spring sheet, which comprises a valve body, a valve core, a handle, a fastening screw and the like, and is mainly characterized in that an anti-loosening spring sheet is additionally arranged in a connecting hole and covers the valve core rod, the anti-loosening spring sheet has a main spring sheet and a secondary spring sheet, the main spring sheet and the secondary spring sheet are both outwardly expanded and tightly adhere to the inner wall of the connecting hole, the fastening screw is inserted into the connecting hole and tightly adheres to the valve core rod together with the main spring sheet, and the outward expansion of the main spring sheet continuously provides the anti-loosening friction force of the fastening screw; obviously, the elasticity and toughness of the anti-loosening spring sheet itself are utilized to continuously provide the anti-loosening friction force of the fastening screw, so that the fastening screw can generate a resistance moment, plays a role of connecting anti-loosening, effectively prevents the handle and the valve core rod from being connected to be loose or falling off, guarantees the reliability of the handle mounting structure, improves the use comfort of the water nozzle, and has the use advantages of convenient assembly, stable structure and the like.

Description

Technical Field

[0001] This invention relates to a faucet handle mounting structure, specifically a faucet handle mounting structure equipped with an anti-loosening spring plate. Background Technology

[0002] Faucets are common bathroom fixtures used in daily life, and the handle is the direct operating component for opening and closing the faucet. Therefore, the reliability of its installation structure greatly affects the comfort of using the faucet. Currently, faucet handle installation structures are as follows: Figure 6 , Figure 7 As shown, the handle is mounted on the exposed valve core rod via the connecting hole, and then secured by a set screw screwed in from the side thread. With this installation structure, after frequent operation of the handle, due to uneven force on the handle or vibration, the thread of the set screw is very likely to loosen, which will lead to a loose gap between the handle and the valve core rod, or even the handle falling off directly, thus making the water tap unusable. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a water tap handle mounting structure with anti-loosening spring plates that is easy to assemble, has a stable structure, can effectively prevent loosening or falling off between the handle and the valve core rod, and ensures the reliability of the handle mounting structure.

[0004] The technical problem of this invention is solved by the following technical solution:

[0005] A water tap handle mounting structure equipped with an anti-loosening spring includes a valve body, a valve core inside the valve body, and a handle outside the valve body. The valve core has a valve core rod protruding from the valve body. The handle is driven and mounted on the valve core rod via a connecting hole and is secured by a set screw. An anti-loosening spring is provided inside the connecting hole, covering the valve core rod. The anti-loosening spring has a main spring and a secondary spring, both of which spring outward and press tightly against the inner wall of the connecting hole. The set screw passes through the connecting hole and, together with the main spring, presses against the valve core rod. The outward spring of the main spring continuously provides anti-loosening friction for the set screw.

[0006] The length of the main spring is greater than the length of the auxiliary spring. The length of the main spring is 13.5mm to 18.5mm, and the length of the auxiliary spring is 1.5mm to 6mm.

[0007] The width of both the main spring and the auxiliary spring is 4mm to 7.5mm, and the thickness of both the main spring and the auxiliary spring is 0.2mm to 0.5mm.

[0008] The anti-loosening spring sheet is composed of a top spring sheet, and a main spring sheet and a secondary spring sheet bent in the same direction at both ends of the top spring sheet. The anti-loosening spring sheet covers the valve core rod, the top spring sheet is attached to the top surface of the valve core rod, and the main spring sheet and the secondary spring sheet are both located on the side of the valve core rod.

[0009] The anti-loosening spring is not installed in the connection hole. The main spring and the auxiliary spring are respectively pushed outward to make the anti-loosening spring form a "︹" shape, and the included angle between the main and auxiliary springs is greater than 5° and less than 170°.

[0010] The connecting hole and valve core rod are a transmission assembly structure consisting of a polygonal hole and a polygonal shaft. The main spring and the auxiliary spring are both located on the side of the polygonal shaft and are symmetrically positioned.

[0011] The set screw is screwed into the connecting hole through the threaded hole on the handle. The main spring springs outward and continuously provides anti-loosening friction force to the threaded connection between the external thread of the set screw and the internal thread of the threaded hole.

[0012] The handle is provided with a connecting shaft, the connecting hole extends along the axis of the connecting shaft and opens downwards, and the threaded hole is provided on the side of the connecting shaft and extends into the connecting hole.

[0013] The anti-loosening spring sheet is integrally stamped from spring steel, and the rounded corners of the anti-loosening spring sheet are blunted.

[0014] The set screw is a flat-end socket head cap screw, a concave-end socket head cap screw, or a tapered-end socket head cap screw. The set screw has a specification of M3 to M7 and a length of 3mm to 8mm.

[0015] Compared with the prior art, the main difference in this invention is the addition of an anti-loosening spring plate covering the valve core rod inside the connecting hole. This anti-loosening spring plate has a main spring plate and a secondary spring plate, both of which spring outwards and press tightly against the inner wall of the connecting hole. The set screw passes through the connecting hole and, together with the main spring plate, presses against the valve core rod. The outward springing of the main spring plate continuously provides anti-loosening friction for the set screw. Clearly, utilizing the elasticity and toughness of the anti-loosening spring plate itself to provide continuous anti-loosening friction for the set screw... The anti-loosening friction force is continuously applied to the threaded connection between the external thread of the set screw and the internal thread of the threaded hole on the handle. This allows the set screw to generate a resistance torque, thus preventing loosening. This solves the problem of loosening of the set screw threads caused by uneven force on the handle or vibration during use in traditional faucet handle installation structures. It effectively prevents loosening or detachment between the handle and the valve stem, ensuring the reliability of the handle installation structure and improving the user comfort of the faucet. This faucet handle installation structure is also suitable for assembling various commonly used ceramic valve stems and corresponding handles, offering advantages such as convenient assembly and structural stability. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the handle on the faucet, showing its top-mounted configuration.

[0017] Figure 2 for Figure 1 A three-dimensional exploded view.

[0018] Figure 3 This is a cross-sectional view of the handle on the faucet, showing its side-mounted configuration.

[0019] Figure 4 for Figure 3 A three-dimensional exploded view.

[0020] Figure 5 A schematic diagram of the structure of the anti-loosening spring sheet.

[0021] Figure 6 An exploded 3D view of the handle on a traditional faucet, mounted on the top.

[0022] Figure 7 An exploded 3D view of the handle on a traditional faucet, showing its side-mounted configuration. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-5As shown, 1. Valve body, 2. Valve core, 21. Valve core rod, 3. Handle, 31. Connecting shaft, 32. Connecting hole, 33. Threaded hole, 4. Set screw, 5. Anti-loosening spring, 51. Top spring, 51. Main spring, 53. Secondary spring.

[0025] A water tap handle mounting structure equipped with an anti-loosening spring plate is widely applicable to the assembly and connection between various commonly used ceramic valve cores and corresponding handles on the market. This embodiment mainly selects two types of water taps for specific description: the first type is as follows... Figure 1 , Figure 2 The image shows a basin faucet, and the handle 3 on this faucet is usually top-mounted; the second type is as follows... Figure 3 , Figure 4 The image shows a washing faucet, and the handle 3 on this faucet is usually mounted on the side.

[0026] The water tap also includes a valve body 1 and a valve core 2 installed inside the valve body. The valve core has a valve core rod 21 protruding from the valve body 1, such as... Figure 1 The valve stem shown protrudes from the top of the valve body or Figure 3 The valve stem shown protrudes from the side of the valve body.

[0027] The handle 3 is provided with a connecting shaft 31, and the connecting shaft is provided with a connecting hole 32 extending along the axis of the connecting shaft and opening downward. Therefore, the handle 3 can be driven and mounted on the valve core rod 21 through the connecting hole 31, thereby driving the synchronous movement of the valve core rod.

[0028] The connecting hole 31 and valve core rod 21 are transmission assembly structures of polygonal holes and polygonal shafts. That is to say, as long as the same number of polygonal holes and polygonal shafts are used, a transmission assembly can be formed. However, in terms of processing difficulty and reliability, it is better to use rectangular holes and rectangular shafts of regular quadrilaterals in this embodiment as the transmission assembly structure.

[0029] The connection hole 31 is also provided with an anti-loosening spring plate 5 covering the valve core rod 21. The anti-loosening spring plate has one main spring plate 52 and at least one auxiliary spring plate 53. That is to say, the number of auxiliary spring plates can be set to multiple, but in actual use, it is usually the case that... Figure 5 The anti-loosening spring sheet 5 shown has the best structure. It only requires one main spring sheet 52 and one auxiliary spring sheet 53, which can achieve good performance while maintaining a simple appearance. The specific structure is as follows:

[0030] The anti-loosening spring sheet 5 is integrally stamped from spring steel, featuring high elasticity, durable toughness, and resistance to breakage. It consists of a top spring sheet 51 and main spring sheets 52 and auxiliary spring sheets 53, which are bent in the same direction at both ends of the top spring sheet. The rounded corners of the anti-loosening spring sheet 5 are blunted. Furthermore, the length of the main spring sheet 52 must be greater than the length of the auxiliary spring sheet 53. Typically, the length of the main spring sheet 52 is selected to be 13.5mm~18.5mm, and the length of the auxiliary spring sheet 53 is selected to be 1.5mm~6mm. The width of both the main spring sheet 52 and the auxiliary spring sheet 53 is 4mm~7.5mm, and the thickness of both the main spring sheet 52 and the auxiliary spring sheet 53 is 0.2mm~0.5mm.

[0031] When the anti-loosening spring plate 5 is not installed in the connecting hole 32, that is, when the anti-loosening spring plate 5 is in the normal state, the main spring plate 52 and the auxiliary spring plate 53 will spring outwards respectively, so that the anti-loosening spring plate 5 forms a "︹" shape, and the included angle between the main and auxiliary spring plates is greater than 5° and less than 170°.

[0032] When the anti-loosening spring 5 is installed inside the connecting hole 32 and covers the valve core rod 21, the top spring 51 is attached to the top surface of the valve core rod 21. The main spring 52 and the auxiliary spring 53 are both located on the side of the valve core rod 21, which is as shown in this embodiment. Figure 1 , Figure 3 As shown, the main reed 52 and the auxiliary reed 53 are located on opposite sides of the rectangular axis and are symmetrical in position.

[0033] In this way, the anti-loosening spring sheet 5 is compressed and constrained by the connecting hole 32, causing the main spring sheet 52 and the auxiliary spring sheet 53 to spring outward and press tightly against the square inner wall of the connecting hole 32, thus entering the working state.

[0034] The connecting shaft 31 has a threaded hole 33 on its side that extends into the connecting hole 32. The internal thread size of the threaded hole is M3-M7. A set screw 4 is provided in the threaded hole 33 for threaded tightening. Specifically, the set screw 4 is threaded through the threaded hole 33 on the handle 3 and inserted into the connecting hole 32, thereby pressing together with the main spring 52 against the valve core rod 21. Then, a force of opposite action during compression will be formed between the main spring 52 and the auxiliary spring 53.

[0035] In this way, the handle 3 and the valve core rod 21 can be fastened together by the set screw 4 and the compressed anti-loosening spring 5. At the same time, the outward springing of the main spring 52 continuously provides anti-loosening friction force to the set screw 4. That is, the anti-loosening friction force is continuously applied to the threaded connection between the external thread of the set screw 4 and the internal thread of the threaded hole 33, so that the set screw 4 can generate resistance torque to play a role in preventing loosening. This solves the problem that the thread of the set screw 4 is prone to loosening due to uneven force on the handle 3 or vibration during use in the traditional water tap handle installation structure. It effectively prevents the connection between the handle 3 and the valve core rod 21 from becoming loose or falling off, ensuring the reliability of the handle installation structure and improving the comfort of using the water tap.

[0036] The set screw 4 is a flat-end hexagonal socket screw, a concave-end hexagonal socket screw, or a tapered-end hexagonal socket screw. The specifications of the set screw 4 are M3~M7, and the length is 3mm~8mm, ensuring wider applicability.

[0037] This invention mainly utilizes the elasticity and toughness of the anti-loosening spring sheet 5 itself to provide continuous anti-loosening friction force to the set screw 4. Since the support point of the anti-loosening spring sheet 5 is inside between the handle 3 and the valve core rod 21, it is not limited by the installation direction of the valve core rod and is better suited to water taps with different structures.

[0038] The anti-loosening spring plate 5 has a simple design and, when used with the handle 3, offers advantages such as easy assembly and stable structure. It is suitable for ceramic valve cores with Φ25mm and Φ35mm specifications that are commonly used in the market. The dimensions of the rectangular valve core rod are the same, and the only difference between it and the Φ40mm ceramic valve core is the rectangular side length and the depth of use of the valve core rod.

[0039] Therefore, it is only necessary to manufacture anti-loosening springs of corresponding specifications according to different valve core specifications. Furthermore, the connection structure of the handle is mostly a set screw connection, which makes the rectangular valve core rod of the handle nearly uniform in size. Thus, it is not affected by whether the threaded connection structure is at the front or rear of the handle. In other words, whether the set screw is screwed in from the front or the rear of the handle, as long as the installation direction of the anti-loosening spring is adjusted so that the main spring can be fastened between the valve core rod and the handle by the set screw, the anti-loosening effect can be achieved.

[0040] The above description is merely a specific embodiment of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included within the protection scope of the present invention.

Claims

1. A water tap handle mounting structure equipped with an anti-loosening spring plate, comprising a valve body (1), a valve core (2) inside the valve body, and a handle (3) outside the valve body, wherein the valve core (2) has a valve core rod (21) protruding from the valve body (1), and the handle (3) is driven and mounted on the valve core rod (21) via a connecting hole (32) and fastened by a set screw (4), characterized in that... The connecting hole (32) is provided with an anti-loosening spring plate (5) covering the valve core rod (21). The anti-loosening spring plate (5) is composed of a top spring plate (51), and a main spring plate (52) and a secondary spring plate (53) bent in the same direction at both ends of the top spring plate. The anti-loosening spring plate (5) covers the valve core rod (21). The top spring plate (51) is attached to the top surface of the valve core rod (21). The main spring plate (52) and the secondary spring plate (53) are both located on the side of the valve core rod (21). The main spring plate (52) and the secondary spring plate (53) are both outwardly opened and pressed tightly against the inner wall of the connecting hole (32). The set screw (4) is inserted into the connecting hole (32) and together with the main spring plate (52), it is pressed against the valve core rod (21). The outward opening of the main spring plate (52) continuously provides the anti-loosening friction force of the set screw (4).

2. A handle mounting structure for a water faucet provided with a lock spring piece according to claim 1, characterized in that The length of the main spring (52) is greater than the length of the auxiliary spring (53). The length of the main spring (52) is 13.5mm to 18.5mm, and the length of the auxiliary spring (53) is 1.5mm to 6mm.

3. The handle mounting structure for a water faucet with a lock spring piece according to claim 1, wherein The width of the main spring (52) and the auxiliary spring (53) is 4mm~7.5mm, and the thickness of the main spring (52) and the auxiliary spring (53) is 0.2mm~0.5mm.

4. The handle mounting structure for a water faucet with a lock spring piece according to claim 1, wherein The anti-loosening spring sheet (5) is not set in the connecting hole (32). The main spring sheet (52) and the auxiliary spring sheet (53) are respectively pushed outward to make the anti-loosening spring sheet (5) form a "︹" shape, and the included angle between the main and auxiliary spring sheets is greater than 5° and less than 170°.

5. The handle mounting structure for a water faucet with an anti-loosening spring piece according to claim 1, wherein The connecting hole (32) and valve core rod (21) are transmission assembly structures of polygonal hole and polygonal shaft. The main spring (52) and auxiliary spring (53) are both located on the side of the polygonal shaft and are symmetrical in position.

6. The handle mounting structure for a water faucet with an anti-loosening spring piece according to claim 1, wherein The set screw (4) is screwed into the connecting hole (32) through the threaded hole (33) on the handle (3). The main spring (52) springs outward and continuously provides the anti-loosening friction force of the set screw (4) to the threaded connection between the external thread of the set screw (4) and the internal thread of the threaded hole (33).

7. A handle mounting structure for a water faucet provided with a lock spring piece according to claim 6, characterized in that The handle (3) is provided with a connecting shaft (31), the connecting hole (32) extends along the axis of the connecting shaft and opens downwards, and the threaded hole (33) is provided on the side of the connecting shaft (31) and extends into the connecting hole (32).

8. The handle mounting structure for a water faucet with a lock spring piece according to claim 1, wherein The anti-loosening spring sheet (5) is integrally stamped from spring steel, and the rounded corners of the anti-loosening spring sheet (5) are blunted.

9. The handle mounting structure of a water faucet provided with a lock spring piece according to claim 1, wherein The set screw (4) is a flat-end hexagonal socket screw, a concave-end hexagonal socket screw, or a tapered-end hexagonal socket screw. The specifications of the set screw (4) are M3~M7, and the length is 3mm~8mm.

Images