Novel stainless steel locking device

By adopting stainless steel material and innovative locking clip components, the problems of high cost, long installation time and poor aesthetics of existing locking devices have been solved, realizing a locking device design that is low-cost, easy to install and highly secure.

CN223867823UActive Publication Date: 2026-02-03XINGSANXING CLOUD TECH CO LTD
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Patent Information

Application Number
CN202520388426.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The locking pins and latches of existing locking devices are mostly made of zinc alloy, which results in high cost, long installation time, and poor aesthetics.

Method used

The design incorporates stainless steel locking blocks and buckles, along with plastic sleeves, locking point fixing shafts, and locking sleeves. It uses clamps and self-tapping screws for fixing, eliminating the need for internal hexagon set screws, thus achieving concealed installation and convenient fixation.

Benefits of technology

It reduces costs, improves installation efficiency, enhances safety and aesthetics, and ensures the stability and reliability of the locking device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of door and window hardware, and relates to a novel stainless steel locking device. The lock catch comprises a lock catch body and a lock nail block body, a locking clamping assembly is arranged on the lock nail block body, the lock nail block body is in a long strip shape, a lock catch part corresponding to the locking clamping assembly in position and matched with the locking clamping assembly in shape is arranged on the lock catch body, and an abutting positioning piece is arranged at the bottom of the lock catch body. And the middle part of the lock catch main body is provided with a sectional material anti-loose fixed connecting piece. The lock nail block main body and the lock catch main body which are made of stainless steel are adopted, compared with a traditional zinc alloy material, the cost is lower, meanwhile, the lock nail block main body can be embedded into the groove in the bottom of the aluminum rod and hidden in the notch, and the overall appearance is more attractive and reasonable.
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Description

Technical Field

[0001] This utility model belongs to the field of door and window hardware technology, and relates to a new type of stainless steel locking device. Background Technology

[0002] Current locking devices on the market have many shortcomings. Locking blocks are mostly made of zinc alloy, and when installed on profile slots, they often protrude above the slot surface, affecting both aesthetics and cost. Locking latches are also mostly made of zinc alloy and secured with hexagonal set screws, leading to high costs and time-consuming, labor-intensive installation, reducing work efficiency. Therefore, there is an urgent need to design a new type of stainless steel locking device that overcomes these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a rotary locking device for planar steel gates [Application No.: 202111058573.6], which includes a rotating mechanism and two locking base plates set on both sides of the top of the concrete gate slot. One end of the rotating mechanism is mounted on the first locking base plate equipped with a stainless steel shaft, and the other end is supported on the second locking base plate by a simple support wheel. When the locking device is in the unlocked state, the rotating mechanism can rotate flexibly around the stainless steel shaft and be fixed in a designated position. When the locking device is in the unlocked state, the rotating mechanism can rotate flexibly around the stainless steel shaft and be fixed in a designated position by a self-locking device. When the locking device is in the locked state, it provides two support types: a first rubber block supported by a simple support wheel and a locking beam support plate, thereby realizing the locking of large, medium and small planar gates. However, in the use of this solution, the locking pin block is still higher than the surface of the slot, affecting the overall integrity of the device, and it also has the drawbacks of high cost and long installation time. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a novel stainless steel locking device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel stainless steel locking device includes a locking body and a locking block body. The locking block body is provided with a locking engagement component. The locking block body is elongated. The locking body is provided with a locking part that corresponds to the position of the locking engagement component and is matched in shape. The bottom of the locking body is provided with an abutment positioning component. The middle of the locking body is provided with a profile anti-loosening fixing connector.

[0007] In the above-mentioned novel stainless steel locking device, the locking snap-fit ​​assembly includes a plastic sleeve disposed on the main body of the locking pin block. The bottom of the plastic sleeve is provided with a locking point fixing shaft and a locking sleeve. The locking sleeve is positioned and matched with the locking snap-fit ​​assembly.

[0008] In the above-mentioned novel stainless steel locking device, a hexagonal screw hole is provided in the locking point fixing shaft, and a safety support ring is provided at the bottom of the lock sleeve, the outer diameter of the safety support ring being larger than the outer diameter of the lock sleeve.

[0009] In the above-mentioned novel stainless steel locking device, the plastic sleeve is provided with an extension buckle, which engages with the main body of the locking block.

[0010] In the above-mentioned novel stainless steel locking device, the extended buckle includes a buckle strip disposed on a plastic sleeve, and a connecting groove is provided in the main body of the locking pin block, with the buckle strip extending into the connecting groove.

[0011] In the aforementioned novel stainless steel locking device, the width of the buckle strip is smaller than the width of the main body of the locking block, and a screw connection hole is provided inside the buckle strip.

[0012] In the above-mentioned novel stainless steel locking device, the profile anti-loosening fixing connector includes a clamping block, an internal hexagonal rivet, and a self-tapping screw disposed in the middle of the locking body. The internal hexagonal rivet passes through the locking body, and the top of the clamping block abuts against the bottom of the locking body.

[0013] In the aforementioned novel stainless steel locking device, the locking body is provided with a supporting step and a rivet positioning hole, the end of the internal hexagonal rivet abuts against the supporting step, and the lower part of the internal hexagonal rivet passes through the rivet positioning hole.

[0014] In the above-mentioned novel stainless steel locking device, the locking part includes two side brackets disposed on the locking body, and the two side brackets form a locking groove that matches the shape of the lock sleeve.

[0015] In the aforementioned novel stainless steel locking device, the abutment positioning component includes a positioning backing plate disposed at the bottom of the locking body.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model uses stainless steel for the main body of the locking block and the main body of the locking buckle, which is cheaper than traditional zinc alloy. At the same time, the main body of the locking block can be embedded in the groove at the bottom of the aluminum rod and hidden in the groove, making the overall appearance more beautiful and reasonable.

[0018] 2. The main body of the locking block in this utility model adopts an I-shaped nail structure, which has a good anti-theft function and enhances the security of the device.

[0019] 3. The locking body of this utility model abandons the method of fixing with hexagonal set screws and adopts a fixing method of clamping block with hexagonal rivets and self-tapping screws, which makes the installation more convenient, saves installation time, and improves work efficiency. The hole designed in the center of the clamping block can be used to drive in self-tapping screws, which further strengthens the fixing effect of the lock.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembly cross section of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model.

[0023] Figure 3 This is a partial structural schematic diagram of the present invention.

[0024] Figure 4 This is a structural schematic diagram of the profile anti-loosening fixing connector.

[0025] Figure 5 This is a partial structural schematic diagram of another aspect of this utility model.

[0026] In the diagram: 1. Locking body; 2. Locking block body; 3. Locking snap assembly; 4. Locking and positioning part; 5. Profile anti-loosening fixing connector; 6. Plastic sleeve; 7. Locking point fixing shaft; 8. Lock sleeve; 9. Hexagonal screw hole; 10. Safety support ring; 11. Extension buckle; 12. Buckle strip; 13. Connecting groove; 14. Screw connecting hole; 15. Clamping block; 16. Hexagonal rivet; 17. Self-tapping screw; 18. Supporting step; 19. Rivet positioning hole; 20. Side bracket; 21. Locking slide groove; 22. Positioning backing plate; 23. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, a novel stainless steel locking device includes a locking body 1 and a locking block body 2. The locking block body 2 is provided with a locking engagement component 3. The locking block body 2 is elongated. The locking body 1 is provided with a locking part 4 that corresponds to the position of the locking engagement component 3 and is matched in shape. The bottom of the locking body 1 is provided with an abutment positioning component 5. The middle of the locking body 1 is provided with a profile anti-loosening fixing connector 6.

[0029] In this embodiment, the locking block body 2 engages with the locking part 4 on the locking buckle body 1 via the locking snap-fit ​​assembly 3, thereby achieving a connection and locking between the two. The abutment positioning member 5 contacts the mounting base during installation, serving to position and support the locking buckle body 1. The profile anti-loosening fixing connector 6 is used to securely install the locking buckle body 1 in the required position. The elongated locking block body 2 facilitates installation and arrangement in the grooves of structures such as aluminum rods. Through the specific locking snap-fit ​​assembly 3 and the locking part 4, a fast and stable locking function is achieved. The abutment positioning member 5 ensures accurate installation position, and the profile anti-loosening fixing connector 6 enhances the stability of the entire device after installation, preventing loosening.

[0030] Combination Figure 1-5 As shown, the locking and engaging assembly 3 includes a plastic sleeve 7 disposed on the main body 2 of the locking pin block. The bottom of the plastic sleeve 7 is provided with a locking point fixing shaft 8 and a locking sleeve 9. The locking sleeve 9 is positioned and matched with the locking and engaging assembly 3.

[0031] Specifically, the plastic sleeve 7 is installed on the main body 2 of the locking pin block, which serves to fix and protect the locking point fixing shaft 8 and the locking sleeve 9. The locking point fixing shaft 8 is used to position and provide the connection point. The locking sleeve 9 cooperates with the corresponding structure on the locking buckle body 1 to achieve locking. The plastic sleeve 7 is insulated and corrosion-resistant, protecting the internal metal parts and extending the service life. The cooperation between the locking point fixing shaft 8 and the locking sleeve 9 makes the locking structure between the main body 2 of the locking pin block and the locking buckle body 1 more stable and enhances the overall reliability.

[0032] The locking point fixing shaft 8 has a hexagonal screw hole 10 inside, and the bottom of the lock sleeve 9 has a safety support ring 11, the outer diameter of which is larger than the outer diameter of the lock sleeve 9.

[0033] In this embodiment, the hexagonal screw hole 10 can be used to install screws to further fix the locking point fixing shaft 8 or connect with other components; the safety ring 11 is at the bottom of the lock sleeve 9. When the lock sleeve 9 is engaged with the lock buckle body 1, the safety ring 11 plays a limiting and protective role, preventing the lock sleeve 9 from being over-inserted. The hexagonal screw hole 10 provides a flexible installation and connection method, increasing the versatility of the device; the safety ring 11 enhances the safety and stability of the lock sleeve 9 when engaged with the lock buckle body 1, avoiding damage caused by improper operation.

[0034] Combination Figure 2 , Figure 3 As shown, the plastic sleeve 7 is provided with an extension buckle 12, which is engaged with the locking block body 2.

[0035] In this embodiment, the extension buckle 12 extends from the plastic sleeve 7 and engages with the corresponding slot or connecting slot on the locking block body 2, making the connection between the plastic sleeve 7 and the locking block body 2 tighter, enhancing the connection strength between the plastic sleeve 7 and the locking block body 2, preventing the plastic sleeve 7 from falling off during use, and improving the overall reliability of the locking buckle assembly 3.

[0036] The extension buckle 12 includes a buckle strip 13 disposed on the plastic sleeve 7, and a connecting groove 14 is provided in the main body 2 of the locking block, and the buckle strip 13 extends into the connecting groove 14.

[0037] In this embodiment, the snap-fit ​​strip 13 starts from the plastic sleeve 7 and is inserted into the connecting groove 14 inside the locking block body 2 to achieve a snap-fit ​​engagement between the two. This snap-fit ​​method is simple and direct, easy to install, and can effectively improve production and installation efficiency, while ensuring the firmness of the connection between the plastic sleeve 7 and the locking block body 2.

[0038] Combination Figure 2 As shown, the width of the buckle strip 13 is smaller than the width of the locking block body 2, and the buckle strip 13 has a screw connection hole 15.

[0039] In this embodiment, the width of the snap-fit ​​strip 13 is smaller than the width of the main body 2 of the locking block, which facilitates insertion into the connecting groove 14; the screw connecting hole 15 can be used to install screws. After the snap-fit ​​strip 13 is inserted into the connecting groove 14, it is further tightened by screws to prevent the snap-fit ​​strip 13 from loosening. The screw connecting hole 15 provides an additional tightening method, which further enhances the connection stability between the plastic sleeve 7 and the main body 2 of the locking block, so that the entire locking snap-fit ​​assembly 3 maintains reliable performance during long-term use.

[0040] The profile anti-loosening fixing connector 6 includes a clamping block 16, an internal hexagonal rivet 17, and a self-tapping screw 18 disposed in the middle of the locking body 1. The internal hexagonal rivet 17 passes through the locking body 1, and the top of the clamping block 16 abuts against the bottom of the locking body 1.

[0041] In this embodiment, the hexagonal rivet 17 first penetrates the locking body 1 to initially fix the clamping block 16 to the bottom of the locking body 1. Then, the self-tapping screw 18 passes through the clamping block 16 and is further tightened to make the clamping block 16 tightly connected to the locking body 1. Compared with the traditional hexagonal set screw fixing, this fixing method is more convenient to install. Moreover, through the dual action of the hexagonal rivet 17 and the self-tapping screw 18, the locking body 1 is more firmly fixed, effectively preventing loosening and improving the overall stability of the locking device.

[0042] Combination Figure 1-5As shown, the locking body 1 is provided with a supporting step 19 and a rivet positioning hole 20. The end of the internal hexagonal rivet 17 abuts against the supporting step 19, and the lower part of the internal hexagonal rivet 17 passes through the rivet positioning hole 20.

[0043] In this embodiment, the internal hexagonal rivet 17 passes through the rivet positioning hole 20, and its end abuts against the supporting step 19. During the installation process, the supporting step 19 plays the role of positioning and supporting the internal hexagonal rivet 17, ensuring that the internal hexagonal rivet 17 is installed in an accurate position. The design of the supporting step 19 and the rivet positioning hole 20 makes the installation of the internal hexagonal rivet 17 more precise and stable, thereby ensuring the fixing effect between the clamping block 16 and the locking body 1, and improving the reliability of the profile anti-loosening fixing connector 6.

[0044] Combination Figure 1-5 As shown, the locking part 4 includes two side brackets 21 disposed on the locking body 1, and the two side brackets 21 form a locking groove 22 that matches the shape of the locking sleeve 9.

[0045] In this embodiment, the locking sleeve 9 slides into the locking groove 22 between the two side stops 21. The side stops 21 limit the locking sleeve 9, thereby achieving a locking connection between the locking body 1 and the locking block body 2. This design makes the locking operation between the locking body 1 and the locking block body 2 simple and convenient. At the same time, the fit between the locking groove 22 and the locking sleeve 9 ensures the stability of the locking and improves the working efficiency and reliability of the entire locking device.

[0046] Combination Figure 2 , Figure 5 As shown, the abutting positioning member 5 includes a positioning backing plate 23 disposed at the bottom of the locking body 1.

[0047] In this embodiment, during installation, the positioning plate 23 contacts the surface of the mounting base. The shape and position of the positioning plate 23 determine the installation position of the latch body 1. The positioning plate 23 plays a precise positioning role, ensuring that the installation position of the latch body 1 is accurate, thereby making the cooperation between the latch body 1 and the locking block body 2 smoother and improving the installation accuracy and performance of the entire locking device.

[0048] The working principle of this utility model is as follows:

[0049] The locking pin block body 2 is embedded into the groove at the bottom of the aluminum rod via its locking snap-fit ​​assembly 3. Specifically, the snap-fit ​​strip 13 on the plastic sleeve 7 is aligned with the connecting groove 14 inside the locking pin block body 2 and inserted for initial fixation. Further reinforcement can then be achieved by installing screws in the screw connection holes 15. The locking point fixing shaft 8 and the locking sleeve 9, in conjunction with the safety support ring 11, ensure the locking pin block body 2 is stably installed within the groove.

[0050] Install the latch body 1 into the corresponding position, so that the locking groove 22 formed by the two side brackets 21 of the latch part 4 cooperates with the lock sleeve 9 to achieve the snap-locking of the latch body 1 and the locking block body 2. At the same time, the positioning plate 23 of the abutment positioning piece 5 plays a positioning role to ensure accurate installation position, and is fixed by the profile anti-loosening fixing connector 6. Place the clamping block 16 at the bottom of the latch body 1, and the internal hexagon rivet 17 penetrates the latch body 1, with its end abutting against the supporting step 19, and its lower part penetrating through the rivet positioning hole 20 to initially fix the clamping block 16. Then, drive the self-tapping screw 18 into the hole in the center of the clamping block 16 to further strengthen the fixation.

[0051] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0052] Although this document frequently uses terms such as 1. Locking body, 2. Locking block body, 3. Locking snap assembly, 4. Locking part, 5. Abutment positioning part, 6. Profile anti-loosening fixing connection part, 7. Plastic sleeve, 8. Locking point fixing shaft, 9. Lock sleeve, 10. Hexagonal screw hole, 11. Safety support ring, 12. Extension snap fastener, 13. Snap strip, 14. Connecting groove, 15. Screw connecting hole, 16. Clamping block, 17. Internal hexagonal rivet, 18. Self-tapping screw, 19. Supporting step, 20. Rivet positioning hole, 21. Side bracket, 22. Locking slide, 23. Positioning backing plate, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A novel stainless steel locking device, comprising a latch body (1) and a locking block body (2), characterized in that, The main body (2) of the locking pin block is provided with a locking and snapping assembly (3). The main body (2) of the locking pin block is long and narrow. The main body (1) of the locking buckle is provided with a locking part (4) that corresponds to the position of the locking and snapping assembly (3) and is matched in shape. The bottom of the locking body (1) is provided with an abutment positioning member (5). The middle part of the locking body (1) is provided with a profile anti-loosening fixing connector (6).

2. The novel stainless steel locking device according to claim 1, characterized in that, The locking snap-fit ​​assembly (3) includes a plastic sleeve (7) disposed on the main body (2) of the locking pin block. The bottom of the plastic sleeve (7) is provided with a locking point fixing shaft (8) and a locking sleeve (9). The locking sleeve (9) is positioned and matched with the locking snap-fit ​​assembly (3).

3. A novel stainless steel locking device according to claim 2, characterized in that, The locking point fixing shaft (8) has a hexagonal screw hole (10) inside, and the bottom of the lock sleeve (9) has a safety support ring (11) with an outer diameter larger than that of the lock sleeve (9).

4. A novel stainless steel locking device according to claim 3, characterized in that, The plastic sleeve (7) is provided with an extension buckle (12), which engages with the locking block body (2).

5. A novel stainless steel locking device according to claim 4, characterized in that, The extension buckle (12) includes a buckle strip (13) disposed on the plastic sleeve (7), and a connecting groove (14) is provided in the main body (2) of the locking block, and the buckle strip (13) extends into the connecting groove (14).

6. A novel stainless steel locking device according to claim 5, characterized in that, The width of the buckle strip (13) is smaller than the width of the main body (2) of the locking block, and a screw connection hole (15) is provided in the buckle strip (13).

7. A novel stainless steel locking device according to claim 6, characterized in that, The profile anti-loosening fixing connector (6) includes a clamping block (16), an internal hexagonal rivet (17), and a self-tapping screw (18) disposed in the middle of the locking body (1). The internal hexagonal rivet (17) passes through the locking body (1), and the top of the clamping block (16) abuts against the bottom of the locking body (1).

8. A novel stainless steel locking device according to claim 7, characterized in that, The locking body (1) is provided with a supporting step (19) and a rivet positioning hole (20). The end of the internal hexagonal rivet (17) abuts against the supporting step (19), and the lower part of the internal hexagonal rivet (17) passes through the rivet positioning hole (20).

9. A novel stainless steel locking device according to claim 2, characterized in that, The locking part (4) includes two side brackets (21) disposed on the locking body (1), and the two side brackets (21) form a locking groove (22) that matches the shape of the lock sleeve (9).

10. A novel stainless steel locking device according to claim 1, characterized in that, The abutment positioning component (5) includes a positioning backing plate (23) disposed at the bottom of the locking body (1).

Citation Information

Patent Citations

  • Rotary locking device for flat steel gates

    CN113718721B