Stone material door handle reinforcing installation structure and installation method thereof

Abstract

The application discloses a stone door handle reinforcing installation structure and an installation method thereof, which comprises a door body and a stone handle, a first positioning hole is formed in the positioning side of the door body, a second positioning hole is formed in the positioning side of the stone handle, an expansion fixing piece is arranged in the first positioning hole and the second positioning hole, and the expansion fixing piece is used for high-strength connection between the door body and the stone handle; the application has simple structure and reasonable design; when the positioning screw is screwed into the expansion back bolt, the expansion end of the expansion back bolt is driven to open outward, mechanical anchoring is formed between the inner wall of the second positioning hole on the stone handle and the expansion end, the other end of the positioning screw is screwed with the first positioning hole, the fixing of the stone handle and the door body is realized, compared with the connection mode of simply adopting dry hanging glue adhesion, the connection strength and the anti-pulling capacity are improved, and the possibility of connection loosening and handle falling in the repeated pulling process is reduced.

Description

Technical Field

[0001] This invention relates to the field of stone installation technology, specifically to a stone door handle reinforcement installation structure and its installation method. Background Technology

[0002] Stone handles meet the needs of door decoration and pulling operation. The installation part needs to withstand the pulling force applied by the user when opening and closing the door. Therefore, the firmness of the connection between the stone handle and the door directly affects the stability and reliability of use.

[0003] Traditional stone handle installation primarily uses dry-hanging adhesive to bond the connector to the stone handle, which is then connected to the door frame. In this method, the fixation between the stone handle and the connector relies heavily on the adhesive layer, and the connection's effectiveness is easily affected by factors such as the cleanliness of the stone surface, the application of the adhesive, and the adhesive's curing conditions. Over time, repeated pulling may cause the adhesive to loosen or detach, resulting in a weak connection between the stone handle and the door frame, or even the handle falling off. Summary of the Invention

[0004] The purpose of this invention is to provide a stone door handle reinforcement installation structure and its installation method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stone door handle reinforcement installation structure, comprising a door body and a stone handle, wherein a first positioning hole is provided on the positioning side of the door body, and a second positioning hole is provided on the positioning side of the stone handle, wherein expansion fasteners are provided in the first positioning hole and the second positioning hole, and the expansion fasteners are used for high-strength connection between the door body and the stone handle.

[0006] Preferably, the expansion fastener includes an expansion back bolt, the expansion end of which matches the inner wall of the second positioning hole, and the expansion back bolt is internally threaded with a positioning screw. The positioning screw is used to adjust the expansion degree of the expansion back bolt, and the end of the positioning screw away from the expansion back bolt is threadedly connected to the first positioning hole.

[0007] Preferably, the inner cross-section of the second positioning hole is tapered, and the expansion end of the expansion bolt abuts against the inner wall of the second positioning hole after expansion.

[0008] Preferably, one end of the positioning screw is provided with a hexagonal groove, which is used to engage with the internal hexagonal socket to rotate the positioning screw into the expansion bolt.

[0009] Preferably, the expansion bolt and the positioning screw are made of 316 stainless steel.

[0010] Preferably, the expansion end of the expansion bolt has a four-claw structure.

[0011] Preferably, the diameter of the second positioning hole is 10.2 mm and the opening depth is 8-12 mm.

[0012] Furthermore, this invention also provides an installation method for the above-mentioned stone door handle reinforcement installation structure, including the following steps: S1. A second positioning hole is drilled on the stone handle using a back-bolt drill bit; S2. Fill the second positioning hole with epoxy dry-hanging adhesive and insert the expansion back bolt inward with the expansion end. S3. Position the end of the expansion bolt by positioning the positioning element, and then rotate the positioning screw into the expansion bolt by using an internal hexagonal screw, so that the expansion end of the expansion bolt abuts against the inner wall of the second positioning hole. S4. Rotate the remaining end of the positioning screw into the first positioning hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention fixes the stone handle to the door by creating a first positioning hole and a second positioning hole on the door body and the stone handle, respectively, and by installing an expansion fastener consisting of an expansion bolt and a positioning screw. When the positioning screw is screwed into the expansion bolt, its expansion end is driven to open outward, forming a mechanical anchor with the inner wall of the second positioning hole on the stone handle. The other end of the positioning screw is then threaded into the first positioning hole, thus fixing the stone handle to the door body. Compared to a simple dry-hanging adhesive bonding method, this structure utilizes the mechanical cooperation between the metal bolt and the stone hole wall to transfer the load, improving the connection strength and pull-out resistance, and reducing the possibility of loosening during repeated pulling and the handle falling off. At the same time, the epoxy dry-hanging adhesive in the second positioning hole can fill the gap and provide auxiliary bonding, adding an extra layer of protection to the connection and improving the reliability of use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the entire invention; Figure 2 This is a first-view exploded view of the internal structure of the present invention; Figure 3 This is a second-view exploded view of the internal structure of the present invention; Figure 4 This is a schematic diagram of the installation of the present invention.

[0015] In the diagram: 1. Door body; 101. First positioning hole; 2. Stone handle; 201. Second positioning hole; 3. Expansion fastener; 301. Expansion back bolt; 302. Positioning screw; 3021. Hexagonal groove. Detailed Implementation

[0016] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0017] It should be noted that when an element is referred to as "fixed," "mounted," "connected," or "set" with another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0018] As a further improvement of the present invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Example 1

[0019] Please see Figure 1 As shown in Figure 4, this embodiment discloses a reinforced installation structure for a stone door handle, including a door body 1 and a stone handle 2. A first positioning hole 101 is provided on the positioning side of the door body 1, and a second positioning hole 201 is provided on the positioning side of the stone handle 2. An expansion fastener 3 is installed in both the first positioning hole 101 and the second positioning hole 201, serving as a high-strength connection between the door body 1 and the stone handle 2. The positioning side of the door body 1 is the side for installing the stone handle 2, and the positioning side of the stone handle 2 is the installation side facing the door body 1. The positions of the first positioning hole 101 and the second positioning hole 201 correspond to each other. After installation, both ends of the expansion fastener 3 are connected to the first positioning hole 101 and the second positioning hole 201, respectively, connecting the stone handle 2 to the door body 1 via the expansion fastener 3.

[0020] During use, the pulling force acting on the stone handle 2 can be transmitted to the door body 1 through the expansion fastener 3. The expansion fastener 3 expands within the second positioning hole 201 and cooperates with the hole wall to form a mechanical anchor, thereby improving the connection between the stone handle 2 and the door body 1 and reducing the possibility of the stone handle 2 loosening or falling off during repeated pulling.

[0021] like Figure 2As shown in Figure 4, the expansion fastener 3 includes an expansion bolt 301. The expansion end of the expansion bolt 301 matches the inner wall of the second positioning hole 201. A positioning screw 302 is internally threaded onto the expansion bolt 301. The positioning screw 302 is used to adjust the expansion degree of the expansion bolt 301. The end of the positioning screw 302 away from the expansion bolt 301 is threadedly connected to the first positioning hole 101. Specifically, the expansion end of the expansion bolt 301 is positioned towards the interior of the second positioning hole 201, and the space for the positioning screw 302 to enter gradually narrows at the expansion end. When the positioning screw 302 rotates relative to the expansion bolt 301 and feeds inward, the end of the positioning screw 302 presses against the inner side of the expansion end, causing the expansion end to open outward until it abuts against the inner wall of the second positioning hole 201. By controlling the screwing depth of the positioning screw 302, the expansion degree of the expansion bolt 301 can be adjusted, so that the expansion bolt 301 and the second positioning hole 201 form a fixed fit.

[0022] The expansion bolt 301 has a positioning part on the side away from the expansion end, and the positioning part has a slot for easy clamping or holding by a positioning tool. The positioning tool can be a fixed wrench, an adjustable wrench, or pliers. The installer uses the positioning tool in conjunction with the slot to circumferentially limit the expansion bolt 301, preventing the expansion bolt 301 from rotating when the positioning screw 302 is screwed in, so that the positioning screw 302 can continuously feed relative to the expansion bolt 301 and drive the expansion end to open.

[0023] The internal thread of the first positioning hole 101 can be directly machined onto the material of the door body 1, or it can be formed by embedding a metal threaded sleeve inside the door body 1. When using the direct machining method, an internal thread matching the positioning screw 302 is machined at the corresponding installation position of the door body 1; when using a metal threaded sleeve, the metal threaded sleeve is fixedly embedded in the corresponding installation position of the door body 1, restricting its rotation and axial movement relative to the door body 1, and the threaded connection portion of the first positioning hole 101 is formed by the inner hole of the metal threaded sleeve. Both methods enable the end of the positioning screw 302 away from the expansion bolt 301 to form a threaded connection with the door body 1, and the specific choice can be made according to the material of the door body 1 and the machining conditions.

[0024] Through the above structure, the expansion bolt 301 and the stone handle 2 are mechanically anchored, and the positioning screw 302 and the door body 1 are threadedly connected. This establishes a force transmission path from the stone handle 2 through the expansion bolt 301 and the positioning screw 302 to the door body 1, thereby improving the pull-out resistance and stability of the connection.

[0025] like Figure 2As shown in Figure 4, the inner cross-section of the second positioning hole 201 is conical. After the expansion end of the expansion bolt 301 expands, it abuts against the inner wall of the second positioning hole 201. Specifically, the second positioning hole 201 is a blind hole opened inward from the positioning side of the stone handle 2. A conical expansion area is formed near the bottom of the hole. The cross-section of this area gradually expands towards the bottom of the hole, making the second positioning hole 201 form a cavity structure that is larger inside and smaller outside. After the expansion bolt 301 is inserted, its expansion end is located in the conical expansion area; when the positioning screw 302 is screwed in, the expansion end gradually opens outward and abuts against the hole wall of this area.

[0026] After the expansion bolt 301 expands, the external dimension of the expanded end is larger than the size of the corresponding opening of the second positioning hole 201. When the stone handle 2 is subjected to an outward pulling force, the hole wall of the tapered expansion area limits the expansion end, restricting the expansion bolt 301 from exiting along the opening direction, so that a mechanical pull-out fit is formed between the expansion bolt 301 and the second positioning hole 201.

[0027] like Figure 2 As shown, one end of the positioning screw 302 has a hexagonal groove 3021, which is used to engage an Allen wrench to rotate the positioning screw 302 into the expansion bolt 301. The hexagonal groove 3021 is located on the end face of the positioning screw 302 away from the expansion bolt 301. During the fixing process of the expansion bolt 301 and the stone handle 2, the Allen wrench is inserted into the hexagonal groove 3021, and the rotation of the expansion bolt 301 is restricted by the positioning tool. Then, the Allen wrench is rotated to feed the positioning screw 302 along the internal thread of the expansion bolt 301 towards the expansion end, completing the expansion and fixing. The hexagonal groove 3021 provides a position for applying force to the end of the positioning screw 302, facilitating the screwing operation.

[0028] The expansion bolt 301 and the positioning screw 302 are made of 316 stainless steel, which enables them to bear the force transmitted during the use of the stone handle 2 as metal connecting components. At the same time, the corrosion resistance of 316 stainless steel reduces the possibility of rust in the connecting parts in humid environments, which helps to maintain the stability of the threaded connection and expansion fixing parts.

[0029] The expansion bolt 301 has a four-claw structure at its expansion end. Specifically, the expansion end is divided into four outwardly opening claws along the circumference, with gaps between adjacent claws to allow for expansion and deformation. After the positioning screw 302 is screwed into the expansion bolt 301, its end presses against the inner side of the four claws, causing the four claws to open outward and abut against the inner wall of the corresponding position in the second positioning hole 201. Through the circumferential engagement of the four claws, the expansion bolt 301 forms multiple abutment points within the second positioning hole 201, improving the stability of the fixation. During installation, the degree of screwing in the positioning screw 302 should be controlled to ensure effective contact between the claws and the hole wall, avoiding excessive screwing that could damage the stone hole wall.

[0030] The second positioning hole 201 has a diameter of 10.2 mm and a drilling depth of 8-12 mm. Here, 10.2 mm is the opening diameter of the second positioning hole 201, with the diameter of the tapered enlargement area near the bottom of the hole being larger than the opening diameter. The drilling depth is the distance from the positioning side surface of the stone handle 2 to the bottom of the second positioning hole 201, and can be 8 mm, 10 mm, or 12 mm, or determined within the above range based on the thickness of the stone handle 2 and the installation requirements of the expansion bolt 301. During processing, sufficient stone thickness should be maintained between the bottom of the hole and the outer surface of the stone handle 2 to meet installation requirements, avoiding drilling through the stone handle 2.

[0031] The second positioning hole 201 can be formed using a dedicated "sharp-type formula back bolt drill bit". The back bolt drill bit is used to process the hole opening and the tapered enlargement area inside the hole, so that the processed cavity can accommodate the expansion back bolt 301 and provide space for its expansion end to open and abut. After processing, the residual stone powder and debris in the hole are cleaned to prepare for the subsequent insertion of the expansion back bolt 301 and filling with epoxy dry-hanging adhesive. Example 2

[0032] This embodiment discloses an installation method based on the above-mentioned stone door handle reinforcement installation structure, the method including the following steps: S1. A second positioning hole 201 is drilled on the stone handle 2 using a back-bolt drill bit. Specifically, the position of the hole on the positioning side of the stone handle 2 is first determined, and then a special "sharp-type formula back-bolt drill bit" is used to process it so that the diameter of the second positioning hole 201 is 10.2mm and the drilling depth is 8-12mm. A conical expansion area is formed near the bottom of the hole. After drilling, stone powder and debris are removed from the hole, and the condition of the hole opening and hole wall is checked to ensure that the expansion back-bolt 301 can be inserted and expand in the hole.

[0033] S2. Fill the second positioning hole 201 with epoxy dry-hanging adhesive, and insert the expansion bolt 301 into the second positioning hole 201 with the expanded end facing inward. The amount of adhesive should be sufficient to fill the gap between the outer wall of the expansion bolt 301 and the inner wall of the second positioning hole 201, while avoiding excessive adhesive entering the internal thread of the expansion bolt 301 and affecting the screwing in of the positioning screw 302. During insertion, align the expanded end of the expansion bolt 301 with the tapered expansion area of ​​the second positioning hole 201, and position its positioning part in a position that can be clamped or held by a positioning tool.

[0034] Epoxy dry-hanging adhesive is used to fill the gap between the expansion bolt 301 and the second positioning hole 201, and provides auxiliary bonding after curing. The mechanical anchoring formed by the expansion bolt 301 after expansion undertakes the main connection function, and the epoxy dry-hanging adhesive provides an additional layer of connection protection on this basis.

[0035] S3. Position the end of the expansion bolt 301 using the positioning element, and then rotate the positioning screw 302 into the expansion bolt 301 using an Allen wrench, so that the expansion end of the expansion bolt 301 abuts against the inner wall of the second positioning hole 201. Specifically, the positioning element can be a fixed wrench, an adjustable wrench, or pliers, which restricts the rotation of the expansion bolt 301 by clamping or holding the slot of the positioning part of the expansion bolt 301; insert the Allen wrench into the hexagonal slot 3021 on the end face of the positioning screw 302, and rotate the Allen wrench to move the positioning screw 302 inward along the internal thread of the expansion bolt 301.

[0036] As the positioning screw 302 continues to screw in, its end presses against the gradually narrowing four-claw portion inside the expansion bolt 301, causing the four claws to open outward and abut against the inner wall of the tapered expansion area of ​​the second positioning hole 201, thus completing the mechanical fixation between the expansion bolt 301 and the stone handle 2. After expansion is complete, remove the positioning parts and the Allen wrench, and clean up any overflowing epoxy dry-hanging adhesive. The above expansion operation is completed before the epoxy dry-hanging adhesive cures, allowing the adhesive to fill the corresponding gaps during the expansion process.

[0037] S4. Rotate the remaining end of the positioning screw 302 into the first positioning hole 101. The first positioning hole 101, which matches the positioning screw 302, is pre-set on the door body 1. The first positioning hole 101 can be directly machined with internal threads, or a threaded connection can be formed by fixing and embedding a metal threaded sleeve. During installation, align the end of the positioning screw 302 that protrudes from the expansion bolt 301 with the first positioning hole 101, rotate the stone handle 2, and use the formed fixed fit to drive the expansion bolt 301 and the positioning screw 302 to rotate together, so that the remaining end of the positioning screw 302 is gradually screwed into the first positioning hole 101, completing the connection between the stone handle 2 and the door body 1.

[0038] After installation, allow the epoxy dry-hanging adhesive to fully cure according to the curing conditions before putting it into use. At this time, the expanded end of the expansion bolt 301 forms a mechanical anchor with the second positioning hole 201, the positioning screw 302 forms a threaded connection with the first positioning hole 101, and the epoxy dry-hanging adhesive forms an auxiliary bond between the expansion bolt 301 and the stone handle 2, jointly improving the connection reliability of the installation structure. It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stone door handle reinforcement installation structure, comprising a door body (1) and a stone handle (2), characterized in that, The door body (1) has a first positioning hole (101) on its positioning side, and the stone handle (2) has a second positioning hole (201) on its positioning side. An expansion fastener (3) is provided in the first positioning hole (101) and the second positioning hole (201). The expansion fastener (3) is used for a high-strength connection between the door body (1) and the stone handle (2).

2. The stone door handle reinforcement installation structure according to claim 1, characterized in that, The expansion fastener (3) includes an expansion back bolt (301), the expansion end of which matches the inner wall of the second positioning hole (201), and the expansion back bolt (301) is internally threaded with a positioning screw (302). The positioning screw (302) is used to adjust the expansion degree of the expansion back bolt (301), and the end of the positioning screw (302) away from the expansion back bolt (301) is threadedly connected to the first positioning hole (101).

3. The stone door handle reinforcement installation structure according to claim 2, characterized in that, The inner cross section of the second positioning hole (201) is tapered, and the expansion end of the expansion bolt (301) abuts against the inner wall of the second positioning hole (201) after expansion.

4. The stone door handle reinforcement installation structure according to claim 2, characterized in that, One end of the positioning screw (302) is provided with a hexagonal groove (3021), which is used to cooperate with the internal hexagon to rotate the positioning screw (302) into the expansion back bolt (301).

5. The stone door handle reinforcement installation structure according to claim 2, characterized in that, The expansion bolt (301) and the positioning screw (302) are made of 316 stainless steel.

6. The stone door handle reinforcement installation structure according to claim 2, characterized in that, The expansion end of the expansion back plug (301) has a four-claw structure.

7. The stone door handle reinforcement installation structure according to claim 1, characterized in that, The second positioning hole (201) has a diameter of 10.2 mm and an opening depth of 8-12 mm.

8. An installation method based on the stone door handle reinforcement installation structure according to any one of claims 1-7, characterized in that, Includes the following steps: S1. A second positioning hole (201) is opened on the stone handle (2) using a back bolt drill bit. S2. Fill the second positioning hole (201) with epoxy dry-hanging adhesive and insert the expansion back bolt (301) inward with the expansion end. S3. Position the end of the expansion bolt (301) by positioning the positioning element, and then rotate the positioning screw (302) into the expansion bolt (301) by using an internal hexagonal screw, so that the expansion end of the expansion bolt (301) abuts against the inner wall of the second positioning hole (201). S4. Rotate the remaining end of the positioning screw (302) into the first positioning hole (101).

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