A door type iron

CN224606210UActive Publication Date: 2026-08-07JIANGSU TONGGUAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TONGGUAN INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-09-16
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]但是在实际的生产过程中,需要外壳体和内安装板均单独开设模具,制备完成后,再通过铆钉固定,需要开设两套模具且每组门型铁制备时都需要消耗铆钉,整体成本较高

Benefits of technology

1.通过设置外壳体、安装板、安装槽、组装板和连接板,外壳体与安装板的连接板及组装板均为一体成型,这样可以通过一个模具进行批量生产,生产后通过弯折工艺将组装板弯折后插入外壳体的安装槽中,完成整体成型,相比原有技术,一体成型通过简单的模具进行,只需要开设一组模具,同时生产中不额外消耗铆钉,降低整体的生产成本;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a door type iron relates to door lock part technical field, and its has reduced the effect of production cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of door lock components, and in particular to a door-type iron. Background Technology

[0002] The door bolt is a common door lock component. Its main function is to accommodate the lock tongue. In use, the door bolt is fixedly installed on the door or door frame, and the lock tongue is rotatably mounted on the door bolt. By accommodating the lock tongue, the door bolt reduces the exposed area of ​​the lock tongue, thereby reducing the probability of the lock tongue being damaged by external impact.

[0003] Common door-type ironwork typically consists of an outer shell and an inner mounting plate. Both the outer shell and the inner mounting plate are formed by casting using molds. The latch is rotatably mounted on the inner mounting plate, and then the inner mounting plate is fixed to the outer shell by multiple rivets, allowing the latch to rotate in and out of the outer shell.

[0004] However, in the actual production process, separate molds are required for both the outer shell and the inner mounting plate. After preparation, they are fixed with rivets. This requires two sets of molds, and each set of door-shaped iron requires rivets, resulting in a high overall cost. Utility Model Content

[0005] In order to reduce production costs, this application provides a portal frame.

[0006] The portal frame provided in this application adopts the following technical solution: A portal frame includes an outer shell and a mounting plate, wherein the mounting plate is integrally connected to the outer shell, and the outer shell has an internal mounting groove into which the mounting plate is inserted.

[0007] By adopting the above technical solution, the outer shell and the mounting plate are integrally formed, which can be produced by setting up a single mold. After production, no further assembly is required, and no rivets are needed for assembly. Compared with opening two sets of molds, the integrally formed structure only requires one mold, and no additional rivets are consumed during production, thus reducing the overall production cost.

[0008] Preferably, the mounting plate includes an assembly plate and a connecting plate. The connecting plate is integrally disposed on the outer shell. The assembly plate and the connecting plate are integrally connected. The connecting plate is inserted into the mounting groove. The assembly plate and the connecting plate are bent into shape. The outer shell is provided with a bending groove at the connection with the connecting plate.

[0009] The overall structure is relatively complex by adopting the above technical solution, so it is difficult to open the mold for one-piece molding. In this application, after the mold is produced, the assembly plate is set parallel to the connecting plate. The assembly plate, which is one-piece molded, is then bent by a bending process so that the assembly plate is inserted into the mounting groove, thereby reducing the difficulty of opening the mold for one-piece molding and reducing the mold opening cost. At the same time, the bending process is relatively common, and the bending groove is set to facilitate bending.

[0010] Preferably, the assembly plate has one on each side of the connecting plate, the assembly plate has a first mounting hole communicating with the mounting groove, and the outer shell has a second mounting hole communicating with the mounting groove. Both the first mounting hole and the second mounting hole are used for the lock tongue shaft to pass through.

[0011] By adopting the above technical solution, the first mounting hole and the second mounting hole allow the bolt shaft to pass through, which facilitates the installation and removal of the bolt and improves the convenience of bolt maintenance and replacement.

[0012] Preferably, the inner wall of the first mounting hole is provided with a first limiting groove that connects to the mounting groove, and the inner wall of the second mounting hole is provided with a second limiting groove that connects to the mounting groove. The first limiting groove and the second limiting groove are used for the limiting block on the locking tongue shaft to pass through.

[0013] By adopting the above technical solution, the limiting block on the bolt shaft is inserted into the first limiting groove and the second limiting groove, thereby improving the stability of the bolt shaft installation, reducing the probability that the bolt shaft will rotate synchronously with the bolt when the bolt rotates to open or close, thus affecting the opening and closing functions, and improving the reliability of the door lock.

[0014] Preferably, the connecting plate is provided with an abutment block, which is inserted into the mounting groove and is used to abut the bolt to limit the rotation range of the bolt.

[0015] By adopting the above technical solution, the abutment block can resist the rotating bolt, thereby limiting the rotation range of the bolt, reducing the wear of the bolt rotation friction on the parts, especially the torsion spring, thus reducing the probability of the torsion spring parts being damaged or failing due to excessive bolt rotation, and improving the overall durability of the door lock.

[0016] Preferably, the abutment block is provided with an insertion slot, which is used for the insertion of the positioning block of the lock body shell when assembling the lock body shell.

[0017] By adopting the above technical solution, when some lock bodies need to be fitted with an additional lock body shell on the door frame iron, the positioning block on the lock body shell is inserted into the insertion slot of the abutment block during assembly, thereby positioning the assembly and improving the convenience and stability of assembly.

[0018] Preferably, the assembly plate is provided with a torsion spring groove, which is used to insert one end of a torsion spring sleeved on the locking tongue shaft.

[0019] By adopting the above technical solution, the torsion spring is sleeved on the lock tongue shaft, with one end of the torsion spring abutting against the lock tongue and the other end of the torsion spring inserted into the torsion spring groove and abutting against the inner wall of the torsion spring groove, thereby limiting the torsion spring and improving the stability of the lock tongue elastically returning to its original position.

[0020] Preferably, the assembly plate is provided with a positioning groove, which is used for the positioning block of the lock body shell to be inserted for positioning when assembling the lock body shell.

[0021] By adopting the above technical solution, the positioning slot is used for the insertion of positioning blocks during the assembly of the lock body shell, thereby positioning the assembly and improving the convenience and stability of the assembly.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an outer shell, mounting plate, mounting slot, assembly plate and connecting plate, the outer shell, the mounting plate and the connecting plate and the assembly plate are all integrally formed. This allows for mass production using a single mold. After production, the assembly plate is bent and inserted into the mounting slot of the outer shell to complete the overall forming. Compared with the original technology, the integral forming is done with a simple mold, requiring only one set of molds. At the same time, no additional rivets are consumed during production, reducing the overall production cost. 2. By setting a first mounting hole, a first limiting groove, a second mounting hole, and a second limiting groove, the rotating shaft of the lock tongue passes through the first mounting hole and the second mounting hole during assembly, so that the lock tongue is rotated in the mounting groove and located between the two assembly plates. At the same time, the limiting block structure on the rotating shaft is inserted into the first limiting groove and the second limiting groove, thereby limiting the rotating shaft and reducing the probability that the lock tongue rotating shaft will rotate synchronously with the lock tongue when the lock tongue rotates to unlock and lock, thus affecting the function and improving the reliability of the door lock. 3. By setting up a stop block, an insertion slot, and a positioning slot, the stop block limits the rotation range of the lock tongue, thereby improving the durability of parts such as the pivot and torsion spring. At the same time, the insertion slot on the stop block, in conjunction with the positioning slot on the assembly plate, allows the positioning block structure of the lock body shell to be inserted during assembly, improving both the ease of assembly and the stability of assembly. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of a portal frame with a lock tongue installed, provided in an embodiment of this application.

[0024] Figure 2 This is an overall schematic diagram of a portal frame without a lock tongue, as provided in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Mounting groove; 12. Second mounting hole; 121. Second limiting groove; 13. Bending groove; 14. Auxiliary groove; 2. Mounting plate; 21. Connecting plate; 211. Abutting block; 212. Insertion groove; 22. Assembly plate; 221. First mounting hole; 222. First limiting groove; 223. Torsion spring groove; 224. Positioning groove. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0027] This application discloses a portal frame steel structure. (Refer to...) Figure 1 and Figure 2 The device includes an integrally formed outer shell 1 and a mounting plate 2. The outer shell 1 has an internal mounting groove 11, and its top wall has an auxiliary groove 14 communicating with the mounting groove 11, extending through both side walls of the outer shell 1. The mounting plate 2 includes an assembly plate 22 and two connecting plates 21. The connecting plates 21 are integrally fixed to the inner wall of the auxiliary groove 14, with their top walls flush with the top wall of the outer shell 1. The assembly plates 22 are integrally fixed to the side walls of the connecting plates 21. The assembly plates 22 and the connecting plates 21 are bent and perpendicular to each other, and the assembly plates 22 are inserted into the mounting groove 11. The outer shell 1 has a bending groove 13 at the connection point with the connecting plates 21, communicating with both the mounting groove 11 and the auxiliary groove 14, separating the outer shell 1 from the assembly plate 22. The outer shell 1 and the mounting plate 2 are integrally molded, requiring only one mold. The assembly plate 22 is formed by bending, so the overall structure of the mold is relatively simple. At the same time, the bent assembly plate 22, combined with the integrally molded structure, does not require additional fixing with rivets, reducing rivet consumption and lowering the overall production cost.

[0028] For easier installation of the lock tongue, refer to... Figure 1 and Figure 2 The assembly plate 22 has a first mounting hole 221 communicating with the mounting groove 11, and the outer shell 1 has a second mounting hole 12 communicating with the mounting groove 11. Both the first mounting hole 221 and the second mounting hole 12 are used for the lock tongue shaft to pass through. The side wall of the assembly plate 22 has a first limiting groove 222 communicating with the mounting groove 11 and the first mounting hole 221, and the side wall of the outer shell 1 has a second limiting groove 121 communicating with the mounting groove 11 and the second mounting hole 12. The first limiting groove 222 and the second limiting groove 121 are used for the limiting block on the lock tongue shaft to pass through. The lock tongue shaft passes through the first mounting hole 221 and the second mounting hole 12, allowing the limiting block structure on the shaft to be inserted into the first limiting groove 222 and the second limiting groove 121, making installation convenient and easy.

[0029] For ease of installation of the lock body shell, refer to Figure 1 and Figure 2 The bottom wall of the assembly plate 22 is provided with a torsion spring groove 223 for inserting one end of the torsion spring of the lock tongue pivot sleeve. The bottom wall of the connecting plate 21 is provided with an abutment block 211 that inserts into the mounting groove 11. The surface of the connecting plate 21 away from the abutment block 211 is provided with an insertion groove 212, which is also provided on the abutment block 211 and communicates with the mounting groove 11. The top wall of the assembly plate 22 is provided with a positioning groove 224. Both the insertion groove 212 and the positioning groove 224 are used for inserting the positioning blocks of the lock body shell. After the lock tongue is assembled onto the portal frame, the lock body shell is installed, so that the multiple positioning block structures on the lock body shell are inserted into the positioning groove 224 and the insertion groove 212, and are inserted into the auxiliary groove 14 of the portal frame shell 1 through the lock body shell limiting structure, thereby facilitating the installation of the lock body shell.

[0030] The implementation principle of the portal frame in this application embodiment is as follows: By integrally forming the outer shell 1 and the mounting plate 2, only one mold is needed, saving the cost of mold making. At the same time, after the mold is produced, the assembly plate 22 is flush with the connecting plate 21 and is not inserted into the mounting groove 11. Subsequently, the assembly plate 22 is bent through a bending process to insert it into the mounting groove 11, thereby reducing the complexity of the integral molding mold and greatly improving the convenience and cost of mold making. Compared with the original technology, which separates two sets of molds and assembles them with multiple sets of rivets, the number and cost of mold making are reduced, and the cost of rivet consumption is also reduced. The bending process itself is also cheaper than the rivet assembly process, thereby greatly saving the production cost of portal frame.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portal frame iron, characterized in that: It includes an outer shell (1) and a mounting plate (2), the mounting plate (2) being integrally connected to the outer shell (1), the outer shell (1) having an internal mounting groove (11), and the mounting plate (2) being inserted into the mounting groove (11).

2. A portal frame according to claim 1, characterized in that: The mounting plate (2) includes an assembly plate (22) and a connecting plate (21). The connecting plate (21) is integrally mounted on the outer shell (1). The assembly plate (22) and the connecting plate (21) are integrally connected. The connecting plate (21) is inserted into the mounting groove (11). The assembly plate (22) and the connecting plate (21) are bent together. The outer shell (1) is provided with a bending groove (13) at the connection with the connecting plate (21).

3. A portal frame according to claim 2, characterized in that: The assembly plate (22) is provided on each side of the connecting plate (21). The assembly plate (22) is provided with a first mounting hole (221) communicating with the mounting groove (11). The outer shell (1) is provided with a second mounting hole (12) communicating with the mounting groove (11). The first mounting hole (221) and the second mounting hole (12) are both used for the lock tongue shaft to pass through.

4. A portal frame according to claim 3, characterized in that: The inner wall of the first mounting hole (221) is provided with a first limiting groove (222) that connects to the mounting groove (11), and the inner wall of the second mounting hole (12) is provided with a second limiting groove (121) that connects to the mounting groove (11). The first limiting groove (222) and the second limiting groove (121) are used for the limiting block on the locking tongue shaft to pass through.

5. A portal frame according to claim 2, characterized in that: The connecting plate (21) is provided with an abutment block (211), which is inserted into the mounting groove (11). The abutment block (211) is used to abut against the lock tongue and limit the rotation range of the lock tongue.

6. A portal frame according to claim 5, characterized in that: The abutment block (211) is provided with an insertion slot (212), which is used for the positioning block of the lock body shell to be inserted when assembling the lock body shell.

7. A portal frame according to claim 2, characterized in that: The assembly plate (22) is provided with a torsion spring groove (223), which is used to insert one end of the torsion spring sleeved on the locking tongue shaft.

8. A portal frame according to claim 2, characterized in that: The assembly plate (22) is provided with a positioning groove (224), which is used for the positioning block of the lock body shell to be inserted for positioning when assembling the lock body shell.