Concealed fixed handle

Abstract

The utility model provides a concealed fixed handle. The concealed fixed handle comprises a handle, a fixed plate, a panel cover, a connecting piece and a bolt, the fixing plate is provided with a fixing hole, a first positioning hole and a center connecting column and fixed to the door body through screws. The connecting piece is cylindrical and provided with a first connecting hole to be connected with the connecting column, and a bolt penetrates through the first connecting hole to be connected with the threaded hole of the connecting column. The panel cover is an open circular shell, is provided with a through hole and a positioning column and is in positioning connection with the fixing plate. A limiting ring is arranged on the outer side wall of the connecting piece and used for fixing the panel cover. In addition, the front end of the connecting piece is sleeved with an anti-rotation piece, and rotation is limited through cooperation of an outer lug and a panel cover positioning column and cooperation of an inner lug and a connecting piece connecting groove. A clamp spring is arranged in the connecting piece mounting groove to limit the axial movement of the anti-rotation piece; the spring and the abutting piece in the containing groove in the bottom of the second connecting hole form an elastic anti-loosening structure to prevent the bolt from loosening. The handle is stable and reliable in structure and excellent in anti-rotation and anti-loosening performance through cooperation of all parts and hiding and fixing of the screws and the bolts, and attractiveness and practicability are improved.

Description

A concealed fixed handle Technical Field

[0001] This utility model relates to the field of door handle technology, specifically to a concealed fixed handle. Background Technology

[0002] A handle is installed on the door. This handle is only used to drive the door to open and close; the handle cannot be rotated.

[0003] When installing handles, the base or mounting plate is usually fixed to the door first, and then the handle is fixedly connected to the base or mounting plate. Traditional handles usually have their base directly fixed to the door with screws, which are exposed and affect the appearance.

[0004] To address the aforementioned technical problems, various handles capable of concealing screws exist in the prior art. The purpose of this application is to provide a solution that differs from existing technologies to address the problem of exposed screws. Summary of the Invention

[0005] In view of the problems pointed out in the background art, this utility model proposes a concealed fixed handle to solve the above-mentioned technical problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A concealed fixed handle includes a handle, a fixing plate, and a panel cover.

[0008] The fixing plate is provided with a fixing hole and a positioning hole, and the fixing plate is provided with a connecting post, and the connecting post is provided with a threaded hole;

[0009] It also includes connectors and bolts. The connectors are provided with a connecting hole 1 for connecting to the connecting post. The connecting hole 1 is set through both ends of the connecting post. The bolt enters from one end of the connecting hole 1 and connects to the threaded hole. The diameter of the bolt head is larger than the diameter of the connecting hole 1.

[0010] The panel cover is connected to the fixed plate. The panel cover has through holes for the connectors to pass through, and the panel cover has positioning pins that correspond to the positioning holes.

[0011] The outer wall of the connector is provided with an annular limiting ring, and the panel cover is located between the limiting ring and the fixing plate;

[0012] The handle has a second connection hole for connecting to the connector, and a second positioning hole is provided on the side wall of the second connection hole, with a positioning pin threaded in the second positioning hole.

[0013] The present invention is further configured such that, after the bolts are tightened, the limiting ring abuts against the panel cover, and the connecting piece is spaced apart from the fixing plate.

[0014] The present invention is further configured such that there are two positioning posts, which are symmetrically arranged about the center of the panel cover.

[0015] The present invention is further configured such that an annular anti-rotation component is sleeved on the connector, and two external lugs are provided on the outer side wall of the anti-rotation component, which respectively cooperate with two positioning posts to restrict the rotation of the anti-rotation component; two internal lugs are provided on the inner side wall of the anti-rotation component, and the connector is provided with a connecting groove corresponding to the internal lugs.

[0016] The present invention is further provided that the outer wall of the connector is provided with an annular mounting groove, and a retaining spring is provided in the mounting groove.

[0017] The present invention is further configured such that the external protruding ear and the anti-rotation component form a 90-degree angle, and the positioning post is provided with an anti-rotation part adapted to the 90-degree angle.

[0018] The present invention is further configured such that the bottom of the second connecting hole is provided with a receiving groove, and an elastic anti-loosening element is provided in the receiving groove. One end of the elastic anti-loosening element abuts against the bolt, and the other end of the elastic anti-loosening element abuts against the bottom of the receiving groove.

[0019] The present invention is further configured such that the elastic anti-loosening component is a spring.

[0020] The present invention is further provided that an abutment piece is provided between the elastic anti-loosening component and the bolt.

[0021] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0022] The concealed mounting handle provided by this utility model has screws that fix the fixing plate to the door body hidden by the panel cover, and bolts that fix the connecting parts to the connecting posts hidden by the handle, thus ensuring the overall aesthetics of the handle. The handle structure of this application is reasonably designed, different from the prior art, and the overall structure is stable and reliable. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 is a schematic diagram of the structure of this utility model.

[0025] Figure 2 is a cross-sectional view of this utility model.

[0026] Figure 3 is a structural schematic diagram of the fixing plate, connector, bolt, and anti-rotation component of this utility model.

[0027] The following are the labels in the attached diagram: 1. Handle; 2. Fixing plate; 3. Panel cover; 4. Fixing hole; 5. Positioning hole one; 6. Connecting post; 7. Threaded hole; 8. Connector; 9. Bolt; 10. Connecting hole one; 11. Through hole; 12. Positioning post; 13. Restricting ring; 14. Connecting hole two; 15. Positioning hole two; 16. Positioning pin; 17. Anti-rotation part; 18. Outer lug; 19. Inner lug; 20. Connecting groove; 21. Mounting groove; 22. Snap ring; 23. Anti-rotation part; 24. Receiving groove; 25. Elastic anti-loosening part; 26. Abutment piece. Detailed Implementation

[0028] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The present invention will be described below with reference to Figures 1-3:

[0030] Example: A concealed fixed handle, mainly composed of a handle 1, a fixing plate 2, a panel cover 3, a connector 8, and bolts 9. Each component has a clear division of labor and cooperates with each other, achieving stable installation and functional realization of the handle through a specific connection method.

[0031] The fixing plate 2 is a circular plate structure. This shape design helps to achieve uniform force distribution during installation and ensures the stability of the handle after installation.

[0032] The fixing plate 2 is provided with fixing holes 4 and positioning holes 5. There are two positioning holes 5 and multiple fixing holes 4.

[0033] The multiple fixing holes 4 allow the fixing plate 2 to be securely connected to the door body using screws. During installation, screws are passed through the fixing holes 4 and screwed into the corresponding positions on the door body. The tightening force of the screws secures the fixing plate 2 to the door body, thus providing a stable installation base for the entire handle.

[0034] The two positioning holes 5 are symmetrically distributed. Their function is to provide precise positioning when installing the panel cover 3 and to prevent circumferential displacement during the installation process.

[0035] The fixing plate 2 has a connecting post 6 at its center, and the connecting post 6 has a threaded hole 7 at its center. This is used to connect with the subsequent connecting parts 8 and bolts 9 to achieve a stable assembly between the components.

[0036] It also includes a connector 8 and a bolt 9. The connector 8 is cylindrical and has a connecting hole 10 that connects to the connecting post 6. The connecting hole 10 extends through both ends of the connecting post 6, with the connecting post 6 connected to the front end of the connecting hole 10. The bolt 9 enters from the rear end of the connecting hole 10 and connects to the threaded hole 7 on the connecting post 6. The diameter of the bolt head is larger than the diameter of the connecting hole 10. Because the bolt head diameter is larger than the connecting hole 10 diameter, when the bolt 9 is tightened, as the threads engage, the bolt 9 pulls the connector 8 towards the fixing plate 2. During this process, the threaded connection provides a reliable tightening force, ensuring a firm connection between the connector 8 and the fixing plate 2, preventing easy loosening.

[0037] The panel cover 3 is a shell structure with an opening facing the fixing plate 2. This design not only facilitates installation but also effectively protects the internal components. The panel cover 3 has a circular structure and is connected to the fixing plate 2.

[0038] The center of the panel cover 3 has a through hole 11 for the connector 8 to pass through.

[0039] The panel cover 3 is provided with two positioning posts 12 that are connected to the two positioning holes 5 respectively. The two positioning posts 12 are symmetrically arranged about the center of the panel cover 3. During installation, the positioning posts 12 are inserted into the positioning holes 5, and the two cooperate with each other to restrict the circumferential rotation of the panel cover 3, ensuring the accuracy of the position of the panel cover 3 after installation.

[0040] The outer wall of the connector 8 is provided with an annular limiting ring 13. The outer diameter of the limiting ring 13 is larger than the diameter of the through hole 11. The panel cover 3 is located between the limiting ring 13 and the fixing plate 2.

[0041] As the connector 8 moves toward the fixed plate 2, the limiting ring 13 pushes the panel cover 3 toward the door body. As the bolt 9 is tightened, the front end of the panel cover 3 comes into close contact with the door body, and the limiting ring 13 comes into contact with the rear end of the panel cover 3, thereby firmly fixing the panel cover 3 and the connector 8 between the fixed plate 2, the connecting post 6 and the door body, forming a stable assembly structure.

[0042] The front end of connector 8 is located inside panel cover 3, and the rear end of connector 8 is located outside panel cover 3.

[0043] The handle 1 has a second connection hole 14 that connects to the rear end of the connector 8. The side wall of the second connection hole 14 has a second positioning hole 15, and a positioning pin 16 is threaded into the positioning hole 15. The handle 1 and the connector 8 are fixedly connected by the positioning pin 16.

[0044] After bolt 9 is tightened, the limiting ring 13 abuts against the panel cover 3, and the connector 8 is spaced apart from the fixing plate 2.

[0045] After installation, the screws that fix the fixing plate 2 to the door body are completely covered and hidden by the panel cover 3, which avoids the screws being exposed and affecting the appearance of the handle; the bolts 9 that fix the connector 8 to the connecting post 6 are covered and hidden by the handle 1, making the entire handle look simple and beautiful.

[0046] From a structural design perspective, the various components work together through positioning structures and threaded connections to form a stable and reliable overall structure. This design not only ensures the stability and durability of the handle during daily use, but also distinguishes it from existing technologies, showcasing unique design advantages and making it suitable for various door installation scenarios with high requirements for aesthetics and structural stability.

[0047] Based on the original structure of the concealed fixed handle, the newly added anti-rotation component 17 and retaining ring 22 further enhance the structural stability of the handle.

[0048] The front end of the connector 8 is fitted with an annular anti-rotation component 17. The outer wall of the anti-rotation component 17 is provided with two external lugs 18, which cooperate with two positioning posts 12 to restrict the rotation of the anti-rotation component 17. Due to the setting of the external lugs 18, the forward and reverse rotation of the anti-rotation component 17 will be restricted by the positioning posts 12.

[0049] The anti-rotation component 17 has two inner lugs 19 on its inner sidewall, and the connector 8 has a connecting groove 20 that corresponds to and connects to the inner lugs 19. When the inner lugs 19 are embedded in the connecting groove 20, they form a mechanical limiting structure, locking the connector 8 and the anti-rotation component 17 circumferentially. When the handle is subjected to external force, which may cause the connector 8 to rotate circumferentially, the anti-rotation component 17 is restricted from rotation by the positioning post 12, and the cooperation between the inner lugs 19 and the connecting groove 20 effectively prevents the connector 8 from rotating, ensuring that the connector 8 maintains a fixed position during use, thereby guaranteeing the stability of the entire handle structure. This dual-limiting design simultaneously constrains the connector 8 circumferentially from both the inner and outer sides, greatly improving the anti-rotation effect.

[0050] The outer wall of the connector 8 is provided with an annular mounting groove 21, and a retaining ring 22 is provided in the mounting groove 21. The retaining ring 22 restricts the axial movement of the anti-rotation component 17.

[0051] The addition of the anti-rotation component 17 and the retaining spring 22 further improves the structural system of the concealed fixed handle. The anti-rotation component 17, in cooperation with the positioning post 12 and the connecting piece 8, eliminates the possibility of circumferential rotation of the connecting piece 8, preventing the handle 1 from shifting due to rotation of the connecting piece 8, which could affect the user experience or cause loosening and damage to components. The retaining spring 22 axially limits the anti-rotation component 17, preventing it from falling off or shifting during use, ensuring the continued effectiveness of the anti-rotation function.

[0052] The design of these two components not only enhances the stability and reliability of the handle structure, but also further improves the product's durability.

[0053] The protruding lug 18 and the anti-rotation component 17 form a 90-degree angle, and the positioning post 12 is provided with an anti-rotation part 23 that is adapted to the 90-degree angle.

[0054] This 90-degree right angle forms a unique right-angle interlocking structure, which can significantly improve the anti-rotation effect and enhance the overall structural stability.

[0055] The bottom of the second connection hole 14 is provided with a receiving groove 24, which provides installation space for the elastic anti-loosening component 25.

[0056] An elastic anti-loosening element 25 is provided inside the receiving groove 24. One end of the elastic anti-loosening element 25 abuts against the bolt 9, and the other end of the elastic anti-loosening element 25 abuts against the bottom of the receiving groove 24. The elastic anti-loosening element 25 is a spring. An abutment piece 26 is provided between the elastic anti-loosening element 25 and the bolt 9, which plays a role in evenly transmitting pressure and protecting the spring and the bolt.

[0057] During the use of the handle, bolt 9 will be subjected to various external forces, such as vibrations and impacts generated when frequently pulling the handle 1. These external forces may cause bolt 9 to loosen. The elastic anti-loosening structure achieves its anti-loosening function through the elastic deformation characteristics of the spring. When installed, the spring is in a compressed state, which generates a continuous elastic restoring force. This force is evenly applied to bolt 9 through the abutment piece 26, so that bolt 9 is always subjected to a pressure in the tightening direction.

[0058] This pressure increases the friction between the threads of bolt 9. According to the principle of friction, the magnitude of the frictional force is proportional to the normal force between the contact surfaces. When bolt 9 is subjected to an external force that could loosen it, the frictional force generated by the pressure applied by the spring will hinder the rotation of bolt 9, thus effectively preventing bolt 9 from loosening. Even when the handle is subjected to significant vibration, the elasticity of the spring can continuously adjust the pressure on bolt 9, maintaining sufficient friction to ensure that bolt 9 remains in a tightened state.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concealed fixed handle, comprising a handle, a fixing plate, and a panel cover, characterized in that: The fixed plate is provided with a fixing hole and a positioning hole 1. The fixed plate is provided with a connecting post, and the connecting post is provided with a threaded hole. It also includes a connector and a bolt. The connector is provided with a connecting hole 1 that connects to the connecting post. The connecting hole 1 is set through both ends of the connecting post. The bolt enters from one end of the connecting hole 1 and connects to the threaded hole. The diameter of the bolt head is larger than the diameter of the connecting hole 1. The panel cover is connected to the fixed plate. The panel cover is provided with a through hole for the connector to pass through. The panel cover is provided with a positioning post that corresponds to the positioning hole 1. The outer side wall of the connector is provided with an annular limiting ring. The panel cover is located between the limiting ring and the fixed plate. The handle is provided with a connecting hole 2 that connects to the connector. The side wall of the connecting hole 2 is provided with a positioning hole 2, and a positioning pin is threadedly connected in the positioning hole 2.

2. The concealed fixed handle according to claim 1, characterized in that: After the bolts are tightened, the limiting ring abuts against the panel cover, and the connector is spaced apart from the fixing plate.

3. A concealed fixed handle according to claim 1, characterized in that: The positioning posts are provided in two positions, which are symmetrically arranged about the center of the panel cover.

4. A concealed fixed handle according to claim 3, characterized in that: The connector is fitted with an annular anti-rotation component. The outer wall of the anti-rotation component has two outward protrusions, which cooperate with two positioning posts to restrict the rotation of the anti-rotation component. The inner wall of the anti-rotation component has two inward protrusions, and the connector has a connecting groove that corresponds to the inward protrusions.

5. A concealed fixed handle according to claim 4, characterized in that: The outer wall of the connector is provided with an annular mounting groove, and a retaining spring is provided in the mounting groove.

6. A concealed fixed handle according to claim 4, characterized in that: The protruding lug and the anti-rotation component form a 90-degree angle, and the positioning post is provided with an anti-rotation part that matches the 90-degree angle.

7. A concealed fixed handle according to claim 1, characterized in that: The bottom of the second connecting hole is provided with a receiving groove, and an elastic anti-loosening element is provided in the receiving groove. One end of the elastic anti-loosening element abuts against the bolt, and the other end of the elastic anti-loosening element abuts against the bottom of the receiving groove.

8. A concealed fixed handle according to claim 7, characterized in that: The elastic anti-loosening component is a spring.

9. A concealed fixed handle according to claim 8, characterized in that: An abutment piece is provided between the elastic anti-loosening component and the bolt.

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