A self-locking fastening structure for a quick-locking measurement module

Abstract

This utility model discloses a self-locking fastening structure for a measurement module that can be quickly locked, comprising: a measurement module body, one end of which is provided with a DB9 female connector and the opposite end with a DB9 male connector; a fastening groove is provided at one end of the measurement module body, and a locking pin is provided in the fastening groove; a locking piece is rotatably mounted on the measurement module body, and the locking piece is provided at the other end of the measurement module body opposite to the fastening groove; the locking piece has an inwardly hook-shaped part on its inner side, and a toggle plate is provided at the end of the locking piece. Compared with the prior art, this utility model solves the problems of low reliability and easy signal communication interruption in existing measurement module connections.

Description

Technical Field

[0001] This utility model relates to the field of measurement module connection technology, and in particular to a self-locking fastening structure for a measurement module that can be quickly locked. Background Technology

[0002] In a bus-based system, multiple modules are connected to a central controller via a shared DB9 cable. Each module's DB9 interface directly handles data transmission and reception without additional conversion, reducing wiring complexity. However, the transmission rate is relatively slow, making it suitable for scenarios with low real-time requirements, such as PLC control or data acquisition.

[0003] In existing modular or bus-based structures, the modules are connected only through DB9 male and female connectors. The reliability of this connection is not high, especially in industrial environments, where it often leads to signal communication interruptions and affects the long-term reliable and stable use of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a self-locking fastening structure for a measurement module that can be quickly locked, in order to solve the problems of low reliability and easy signal communication interruption in existing measurement module connections.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a self-locking fastening structure for a measuring module that can be quickly locked, comprising:

[0006] The measuring module body has a DB9 female connector at one end and a DB9 male connector at the other end. One end of the measuring module body has a fastening groove with a locking pin inside the fastening groove.

[0007] The locking piece is rotatably mounted on the measuring module body. The locking piece is located at the other end of the measuring module body opposite to the locking groove. The inner side of the locking piece is provided with an inward hook-shaped part, and the end of the locking piece is provided with a toggle plate.

[0008] In this configuration, after the DB9 female connector of one measurement module body is inserted into the DB9 male connector of another adjacent measurement module body, the locking piece of one measurement module body is engaged in the locking groove of the other adjacent measurement module body, the hook-shaped part hooks the locking post, and the actuating plate extends to the surface of the other measurement module body.

[0009] As a further description of the above technical solution:

[0010] The locking tab is made of plastic.

[0011] As a further description of the above technical solution:

[0012] The snap-fit ​​groove position corresponds to the DB9 female connector.

[0013] As a further description of the above technical solution:

[0014] The locking pin is cylindrical.

[0015] As a further description of the above technical solution:

[0016] The measuring module body has symmetrically arranged locking tabs on both sides.

[0017] As a further description of the above technical solution:

[0018] The end of the toggle plate is provided with a bevel, which faces the surface of the measuring module body.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, in addition to the original DB9 male and female connector connection, an additional mechanical connection locking structure between modules is added, which greatly increases the reliability of the connection between modules and can meet the requirements of reliable connection in harsh industrial environments.

[0021] 2. In this utility model, the self-locking locking structure can greatly ensure that the measuring module is not affected by vibration or poor contact in the industrial field or during transportation, thus ensuring the reliable use of the measuring equipment and avoiding signal communication interruption.

[0022] 3. In this utility model, fast locking and disassembly can be achieved without the need for additional tools, which is convenient for on-site users. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a self-locking fastening structure for a measurement module that can be quickly locked.

[0025] Figure 2 This is a schematic diagram of the measurement module body in a self-locking fastening structure for a measurement module that can be quickly locked.

[0026] Figure 3 A locking diagram of a self-locking fastening structure for a quick-locking measurement module. Figure 1 .

[0027] Figure 4A locking diagram of a self-locking fastening structure for a quick-locking measurement module. Figure 2 .

[0028] Legend:

[0029] 1. Measurement module body; 11. DB9 female connector; 12. DB9 male connector; 13. Snap-fit ​​groove; 131. Locking post; 2. Locking piece; 21. Hook-shaped part; 22. Actuating plate; 221. Angled surface. Detailed Implementation

[0030] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1-4 This utility model provides a technical solution: a self-locking fastening structure for a measuring module that can be quickly locked, comprising:

[0033] The measuring module body 1 has a DB9 female connector 11 at one end and a DB9 male connector 12 at the other end. The measuring module body 1 has a fastening groove 13 at one end and a locking pin 131 inside the fastening groove 13.

[0034] The locking piece 2 is rotatably mounted on the measuring module body 1. The locking piece 2 is located at the other end of the measuring module body 1 opposite to the locking groove 13. The inner side of the locking piece 2 is provided with an inward hook-shaped part 21, and the end of the locking piece 2 is provided with a toggle plate 22.

[0035] In this process, after the DB9 female connector 11 of one measurement module body 1 is inserted into the DB9 male connector 12 of another adjacent measurement module body 1, the locking piece 2 of one measurement module body 1 is fastened in the locking groove 13 of the other adjacent measurement module body 1, the hook-shaped part 21 hooks the locking post 131, and the actuating plate 22 extends to the surface of the other measurement module body 1.

[0036] In addition to the existing DB9 male and female connectors, a mechanical locking structure has been added between modules, greatly increasing the reliability of the connection and ensuring reliable connections even in harsh industrial environments. The self-locking structure effectively prevents the measuring modules from falling off or making poor contact due to vibration during industrial use or transportation, guaranteeing reliable operation of the measuring equipment and preventing signal communication interruptions. Furthermore, quick locking and disassembly can be achieved without additional tools, facilitating operation by field personnel.

[0037] The snap-fit ​​groove 13 corresponds to the DB9 female connector 11, which effectively prevents the DB9 female connector 11 and DB9 male connector 12 from becoming loose and avoids poor contact.

[0038] The locking post 131 is cylindrical, which facilitates the engagement of the hook-shaped part 21 of the locking piece 2 with the locking post 131.

[0039] The measuring module body 1 has symmetrically arranged locking pieces 2 on both sides. Correspondingly, the locking pieces 2 engage with the locking posts 131 in the fastening grooves 13 on both sides of the measuring module body 1, effectively ensuring the locking effect.

[0040] Working principle: The connection between independent measuring modules, in addition to the DB9 female connector 11 and DB9 male connector 12, involves two locking tabs 2 added to the mechanical housing. The locking tabs 2 are rotatably mounted and engage with the locking post 131 within the locking groove 13 via a hook-like structure inside the head. To lock, a slight press on the locking tab 2 will engage it. Furthermore, this structure requires no external tooling; it can be opened manually by pushing outwards with the toggle plate 22, enabling quick assembly and disassembly between modules and facilitating operation.

[0041] Example 2

[0042] Based on the above embodiments, this embodiment further improves upon the following technical solution: the locking piece 2 is a plastic piece.

[0043] The latching piece 2 can be made of plastic material with elastic deformation capability to facilitate the latching piece 2 to be fastened and unlocked.

[0044] The locking piece 2 can also be made of stainless steel with elastic deformation capability.

[0045] Example 3

[0046] Based on the above embodiments, this embodiment further improves upon the following technical solution: the end of the toggle plate 22 is provided with an inclined surface 221, which faces the surface of the measuring module body 1.

[0047] This creates a gap between the end of the toggle plate 22 and the surface of the measuring module body 1, making it easier to push the latch plate 2 outward to unlock.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-locking measuring module self-locking buckle structure, characterized in that, include: The measuring module body has a DB9 female connector at one end and a DB9 male connector at the other end. A fastening groove is provided at one end of the measuring module body, and a locking pin is provided in the fastening groove. A locking piece is rotatably mounted on the measuring module body. The locking piece is located at the other end of the measuring module body opposite to the fastening groove. The inner side of the locking piece is provided with an inwardly hook-shaped part, and the end of the locking piece is provided with a toggle plate. In this configuration, after the DB9 female connector of one measurement module body is inserted into the DB9 male connector of another adjacent measurement module body, the locking piece of one measurement module body is engaged in the locking groove of another adjacent measurement module body, the hook-shaped part hooks the locking post, and the actuating plate extends to the surface of another measurement module body.

2. The quick-locking measuring module self-locking buckle structure according to claim 1, characterized in that, The latch piece is a plastic sheet.

3. The quick-locking measuring module self-locking buckle structure according to claim 1, characterized in that, The position of the fastening groove corresponds to the DB9 female connector.

4. The quick-locking measuring module self-locking buckle structure according to claim 1, characterized in that, The locking pin is a cylinder.

5. The quick-locking measuring module self-locking buckle structure according to claim 1, characterized in that, The measuring module body has symmetrically arranged locking pieces on both sides.

6. The quick-locking measuring module self-locking buckle structure according to claim 1, characterized in that, The end of the toggle plate is provided with an inclined surface, which faces the surface of the measuring module body.

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