Cover structure of control box

Abstract

The application relates to a cover structure of a control box, the control box comprising a base with a limiting part, the cover structure comprising a cover body, a knob and a torsion spring, the cover body being connected to the base, the knob being rotatably connected to the cover body and having a stop arm stopping at the limiting part, the torsion spring comprising a main body, a first arm body extending from one end of the main body and a second arm body extending from the other end of the main body, the first arm body being fixed to the cover body, the second arm body being fixed to the knob, and the main body being formed with a pre-torsion, when the knob is rotated by an external force, the stop arm is released from the limiting part, so that the cover structure is unlocked from the base, and when the external force is removed, the knob is reset by the pre-torsion; thus, the cover structure is quickly disassembled from the base, so that the operation and maintenance of an operator are facilitated.

Description

Technical Field

[0001] This application relates to a cover structure, and more particularly to a cover structure for a control box. Background Technology

[0002] With the booming development of industry, linear actuators are widely used in homes, workplaces, medical institutions, and agriculture. Linear actuators are controlled by a user-operated handheld controller, and the control box controls the actuator's operation based on the user's commands. The control box mainly consists of a housing with multiple signal cables connected to it. To prevent the signal cables from falling out or allowing moisture and dust to enter, a cover is installed on the housing to shield the signal cables.

[0003] However, the typical cover is secured to the box with multiple bolts, which makes disassembly and assembly cumbersome and time-consuming. Furthermore, these bolts are prone to being lost during disassembly and assembly, and tools are required. Therefore, improving the locking mechanism of the cover and the box is an urgent issue that needs to be addressed.

[0004] In view of this, the inventors of this application have devoted themselves to research and applied theoretical principles to address the shortcomings of the prior art, and have made every effort to solve the aforementioned problems, which have become the goals of the inventors' improvements. Summary of the Invention

[0005] The main purpose of this application is to enable the cover structure to be quickly disassembled and assembled relative to the base, thereby facilitating the use and maintenance by operators.

[0006] To achieve the above objectives, this application provides a cover structure for a control box. The control box includes a base with a limiting portion. The cover structure includes a cover body, a knob, and a torsion spring. The cover body is movably connected to the base, and the knob is rotatably connected to the cover body. The knob has a stop arm that stops at the limiting portion. The torsion spring includes a main body, a first arm extending from one end of the main body, and a second arm extending from the other end of the main body. The first arm is fixed to the cover body, and the second arm is fixed to the knob, forming a pre-torque on the main body. When the knob is rotated by an external force, the stop arm disengages from the limiting portion, thereby unlocking the cover structure from the base. When the external force is removed, the knob is reset by the pre-torque.

[0007] In one embodiment, the stop arm is provided with a guide surface.

[0008] In one embodiment, the cross-section of the stop arm is arc-shaped.

[0009] In one embodiment, the knob is provided with a mounting post, and the main body is fitted with the mounting post.

[0010] In one embodiment, a bolt is also included, and the cover is provided with a stud, the bolt passing through the first arm and locking the stud.

[0011] In one embodiment, the knob is provided with a fixing post, and the second arm is fitted with a fixing post.

[0012] In one embodiment, the cover has a slot, and the knob is provided with multiple elastic hooks, each elastic hook passing through the slot and together fastening the cover.

[0013] In one embodiment, the knob is provided with a mounting post, the main body is fitted with the mounting post, and the stop arm and each elastic hook are arranged in a ring around the mounting post.

[0014] In one embodiment, the knob is provided with a key slot.

[0015] In one embodiment, the knob is provided with a lever.

[0016] This application also has the following advantages: the stop structure on the inner wall of the base and the limiting piece on the inner edge of the cover interlock, thereby restricting the cover to move only longitudinally along the base. The knob can be connected to the cover by the elastic hooks passing through the slots and fastening together at the bottom of the cover. The guide surface on the inner side of the stop arm allows the stop arm to elastically deform and move along the limiting part until it is locked in place. The cover structure of this application does not require screws for installation and disassembly, making the process simpler and faster. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the application and the base.

[0018] Figure 2 This is an exploded perspective view of the application and its base.

[0019] Figure 3 This is an exploded three-dimensional view of this application.

[0020] Figure 4 This is a cross-sectional view of the application when locked with the base.

[0021] Figure 5 This is a partial bottom view of the application when it is locked to the base.

[0022] Figure 6 This is a 3D view of the application and the base when unlocked.

[0023] Figure 7 This is a partial bottom view of the application and the base when unlocked.

[0024] Figure 8 This is a cross-sectional view of the application and the base when unlocked.

[0025] Figure 9 This is a schematic diagram (a) showing the installation of this application and the base.

[0026] Figure 10 This is a schematic diagram (II) showing the installation of this application and the base.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1: Cover structure;

[0029] 10: Cover;

[0030] 11: Limiting plate;

[0031] 12: Stud;

[0032] 13: Slot;

[0033] 20: Knob;

[0034] 21: Stop arm;

[0035] 211: Guiding surface;

[0036] 22: Fixed column;

[0037] 23: Installing column;

[0038] 24: Flexible snap hook;

[0039] 25: Key slot;

[0040] 30: Torsion spring;

[0041] 31: Main body;

[0042] 32: First arm body;

[0043] 33: Second arm body;

[0044] 40: Bolt;

[0045] A: Base;

[0046] A1: Container;

[0047] A11: Stop structure;

[0048] A2: Limiting part;

[0049] B: Key. Detailed Implementation

[0050] The detailed description and technical content of this application will be explained in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application.

[0051] This application provides a cover structure 1 for a control box. The control box includes a rectangular base A, the base A having a receiving groove A1 and a limiting part A2, with the limiting part A2 located within the receiving groove A1. Please refer to... Figures 1 to 5 As shown, the cover structure 1 mainly includes a cover body 10, a knob 20, and a torsion spring 30.

[0052] The cover 10 is plate-shaped and can be made of plastic or metal, but this application does not impose many restrictions on it and can make corresponding adjustments according to design requirements. The cover 10 is movably connected to the base A and covers the receiving groove A1. Specifically, the cover 10 can move longitudinally along the base A, thereby covering or exposing the receiving groove A1. In this embodiment, the base A has a plurality of stop structures A11 protruding from the inner wall of the receiving groove A1, and the inner side edge of the cover 10 has a plurality of limiting pieces 11 protruding accordingly. Each limiting piece 11 is engaged with each stop structure A11, thereby restricting the cover 10 to move only longitudinally along the base A, but this application is not limited to this.

[0053] The knob 20 is rotatably connected to the cover 10. The knob 20 has an arc-shaped stop arm 21 that is received within a groove A1, and the stop arm 21 is stopped by a limiting part A2. Specifically, in this embodiment, the limiting part A2 is an arc-shaped wall, and the arc-shaped wall is located outside the stop arm 21 and can stop the knob 20 along the longitudinal direction of the base A. Preferably, in this embodiment, the limiting part A2 includes two arc-shaped walls disposed on the inner and outer sides of the stop arm 21, thereby restricting the stop arm 21 within the arc-shaped gap between the two arc-shaped walls.

[0054] The torsion spring 30 includes a main body 31, a first arm 32 extending from one end of the main body 31, and a second arm 33 extending from the other end of the main body 31. The main body 31 is fitted onto the knob 20, the first arm 32 is fixed to the cover 10, and the second arm 33 is fixed to the knob 20. A pre-torque is formed in the main body 31 of the torsion spring 30. Specifically, the cover 10 is provided with a stud 12 for fixing the first arm 32, and the knob 20 is provided with a fixing post 22 for fitting the second arm 33. Preferably, the cover structure 1 of this application also includes a bolt 40, which passes through the first arm 32 and locks into the stud 12, thereby fixing the torsion spring 30 to the cover 10, but this application is not limited thereto.

[0055] To further explain, the knob 20 has a central mounting post 23, which is fitted onto the main body 31 of the torsion spring 30. Furthermore, the cover 10 has a slot 13 for the knob 20 to pass through, and the knob 20 is surrounded by multiple elastic hooks 24 in a ring around the mounting post 23. Each elastic hook 24 passes through the slot 13 and is secured to the bottom of the cover 10, thus connecting the knob 20 to the cover 10. Specifically, the fixing post 22 is located on one side of the mounting post 23, and each elastic hook 24 and the stop arm 21 surround the mounting post 23 in a ring.

[0056] Please see Figures 6 to 8The diagram shows the usage state of the cover structure 1 when unlocked. In this embodiment, the knob 20 is provided with a key slot 25 for the key B to be inserted and rotated to avoid accidental contact or operation by unauthorized personnel. However, this application is not limited to this, and the knob 20 may also be provided with a lever for finger twisting so that it can be rotated directly. When the knob 20 is rotated by an external force, the torsion spring 30 undergoes elastic deformation to increase the torque, and the stop arm 21 slides along the gap between the two arc-shaped walls until it is released from the restriction of each arc-shaped wall, so that the cover structure 1 is unlocked from the base A of the control box, thereby allowing the cover 10 to move longitudinally along the base A to expose the receiving groove A1.

[0057] See also Figure 1 , Figure 4 and Figure 5 When the external force is removed, the torque and pre-torque of the elastic deformation of the torsion spring 30 push the knob 20 back to its original position, and cause the stop arm 21 to slide into the gap between the two arc-shaped walls and be restricted by the two arc-shaped walls, thereby stopping the cover 10 and preventing it from moving longitudinally along the base A.

[0058] Furthermore, a guide surface 211 is provided on the inner side of the stop arm 21. In this embodiment, the top of the arc-shaped wall in the limiting part A2 located outside the stop arm 21 is provided with a chamfer, and the chamfer is located on the side away from the stop arm 21, corresponding to the guide surface 211. Please refer to... Figure 9 and Figure 10 When the cover structure 1 of this application is installed on the base A, the guide surface 211 of the stop arm 21 will be attached to the chamfer of the curved wall, thereby causing the stop arm 21 to elastically deform and move along the chamfer until the stop arm 21 is locked into the two curved walls. In this way, the cover structure 1 can be quickly installed on the base A without turning the knob 20, and it cannot be disassembled in reverse.

[0059] In summary, this application possesses industrial applicability, novelty, and inventiveness, and fully meets the requirements for a patent application; therefore, this application is filed in accordance with the Patent Law. Of course, this application may have many other embodiments. Without departing from the spirit and substance of this application, those skilled in the art can devise various corresponding changes and modifications based on this application, but all such corresponding changes and modifications should fall within the protection scope of this application.

Claims

1. A cover structure for a control box, characterized in that, The control box includes a base, the base having a limiting portion, and the cover structure includes: The cover is movably connected to the base; A knob, rotatably connected to the cover, the knob having a stop arm that abuts against the limiting portion; and A torsion spring includes a body, a first arm extending from one end of the body and a second arm extending from the other end of the body, the first arm being fixed to the cover and the second arm being fixed to the knob, and a pre-torque being formed in the body. The limiting part includes two arc-shaped walls disposed on the inner and outer sides of the stop arm, and the stop arm is restricted within the arc-shaped gap between the two arc-shaped walls; When the knob is rotated by an external force, the stop arm disengages from the arc-shaped gap of the limiting part, thereby unlocking the cover structure from the base. When the external force is removed, the knob is reset by the pre-torque.

2. The cover structure as described in claim 1, characterized in that, The stop arm is provided with a guide surface.

3. The cover structure as described in claim 1, characterized in that, The cross-section of the stop arm is arc-shaped.

4. The cover structure as described in claim 1, characterized in that, The knob is provided with a mounting post, and the main body is fitted with the mounting post.

5. The cover structure as described in claim 1, characterized in that, It also includes bolts, and the cover is provided with studs. The bolts pass through the first arm and lock onto the studs.

6. The cover structure as described in claim 1, characterized in that, The knob is equipped with a fixing post, and the second arm is fitted with the fixing post.

7. The cover structure as described in claim 1, characterized in that, The cover has a slot, and the knob is provided with multiple elastic hooks, each of which passes through the slot and together fastens the cover.

8. The cover structure as described in claim 7, characterized in that, The knob is provided with a mounting post, the main body is fitted with the mounting post, and the stop arm and each of the elastic hooks are arranged in a ring around the mounting post.

9. The cover structure as described in claim 1, characterized in that, The knob has a key slot.

10. The cover structure as described in claim 1, characterized in that, The knob is equipped with a lever.

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