A changeover switch that facilitates automated installation

Abstract

This utility model relates to the field of electrical control cabinet equipment, specifically a changeover switch that facilitates automated installation. It includes a knob, a mounting base, and a contact system. A push rod base and a positioning base form a hollow cavity. A push rod groove is provided on the side wall of the push rod base, in which a control push rod is slidably mounted. A sliding spring clip, made of metal spring sheet, is located within the hollow cavity. The spring clip has an open head and a closed tail. One end of the control push rod is connected to the tail of the spring clip, and the other end extends from the push rod groove. A spring clip outlet is provided on the positioning base, with the opening of the spring clip facing the outlet. This utility model achieves rapid clamping and release between the changeover switch mounting base and the mounting panel by providing multiple slidable spring clips within the mounting base of the changeover switch. These spring clips are driven by the push rod, which pushes the push rod, causing the spring clips to slide. This saves installation steps.

Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet equipment, specifically a changeover switch that is easy to install automatically. Background Technology

[0002] A changeover switch is a common component used in electrical control cabinets to connect and disconnect multiple electrical circuits. Ordinary changeover switches require disassembly before installation, followed by securing them to a mounting panel with screws or plastic nuts. This process must be performed simultaneously on both the front and back of the mounting panel. Due to the small size and irregular shape of the components, the disassembly, installation, and screw tightening of changeover switches are cumbersome and typically require manual installation, resulting in low production efficiency.

[0003] One type of counter uses spring steel wire clamping, which avoids the need for screwing and improves installation efficiency. However, there are three drawbacks to automated installation: First, the component body needs to be inserted into the mounting hole from the front of the mounting plate, while the spring steel wire needs to be removed from the component and then inserted into the mounting hole on the back of the mounting plate. This requires operation on both sides of the mounting plate, hindering automated installation. Second, the spring steel wire is relatively thin and curved, making accurate clamping by automated fixtures difficult. Third, the mounting hole diameter for the spring steel wire is small, requiring precise positioning during automated installation. Utility Model Content

[0004] In view of the problems in the prior art, this utility model provides a changeover switch that is easy to install automatically, so as to realize the automated installation of the changeover switch.

[0005] This utility model is achieved through the following technical solution: A changeover switch that is easy to install automatically includes a knob, a mounting base, and a contact system. The mounting base includes a push rod seat near the knob and a positioning seat near the contact system. The push rod seat and the positioning seat form a hollow cavity, and the connection between the push rod seat and the positioning seat forms a stepped surface for contacting the mounting panel. The side wall of the push rod seat is provided with a push rod groove, in which a control push rod is slidably mounted. A sliding spring clip is provided in the hollow cavity. The spring clip is a clip made of metal spring sheet, with an open head and a closed tail. One end of the control push rod is connected to the tail of the spring clip, and the other end extends out from the push rod groove. A spring clip outlet is provided on the positioning seat, with the opening of the spring clip facing the spring clip outlet. A first stop is provided at the push rod slide groove to fix the control push rod; a second stop is provided at the spring clip outlet to open the spring clip opening; the spring clip opening is composed of an upper spring plate and a lower spring plate, which are located on the upper and lower sides of the step, respectively.

[0006] Preferably, the head of the spring clip is provided with a rolled edge, and the tail is provided with a boss, and the control push rod is rotatably connected to the boss.

[0007] Preferably, the control push rod is C-shaped, including a horizontal push rod and two vertical ends. The two vertical ends are respectively connected to the two ends of the horizontal push rod, and the other end of the vertical end is connected to the boss of the spring clip.

[0008] Preferably, the lateral push rod includes a rod head and two rod shoulders, which are respectively connected to both sides of the rod head. The rod shoulders cooperate with the first stop block, and the other end of the rod shoulder is connected to the vertical end.

[0009] Preferably, the first stop is arranged with an inclined surface, and the inclined surface faces the outside of the cavity.

[0010] Preferably, the second stop is arranged with an inclined surface facing the inside of the cavity.

[0011] Preferably, there are two control push rods symmetrically arranged, and each push rod controls a set of spring clips, with each set of spring clips consisting of two spring clips.

[0012] Preferably, the two symmetrical control push rods are referred to as the left push rod and the right push rod. The two push rods have similar structures, but the length of the lateral push rod of the right push rod is greater than the length of the lateral push rod of the left push rod.

[0013] Preferably, the push rod slide groove is provided with a notch, the notch is set with an inclined surface, and the inclined surface faces outward.

[0014] Preferably, during installation, mounting holes are provided on the mounting panel, the contact system passes through the mounting holes, and the mounting panel contacts the stepped surface.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This utility model discloses a changeover switch that facilitates automated installation. Through a hollow cavity, stepped surface, spring clip system, and push rod control mechanism, it achieves the core objective of "facilitating automated installation," effectively reducing installation time and improving installation efficiency. Specifically, a sliding spring clip is installed within the changeover switch mounting base, driven by a push rod. Pushing the push rod causes the spring clip to slide. When the spring clip is pushed out from its outlet, it quickly clamps against the mounting panel. Removing the push rod causes the spring clip to retract into the mounting base, simultaneously releasing the mounting panel. This achieves rapid clamping and release between the changeover switch mounting base and the mounting panel, improving the installation efficiency of the changeover switch.

[0016] Furthermore, the C-shaped design of the push rod, combined with a spring clip, enables both pushing and fixing. The vertical end is rotatably connected to the spring clip, allowing for displacement of the push rod during prying. Pushing the control push rod, through the engagement of the rod shoulder with the inclined surface of the first stop, enables "one-button" locking and unlocking. When the push rod is pushed, the inclined surface of the first stop guides the rod shoulder into the stop, automatically fixing its position; when the push rod is pried out, it is pushed out of the push rod groove under the action of spring force, eliminating the need for manual screwing or the use of special tools.

[0017] Furthermore, the second stop has an inward-facing bevel, which guides the head of the spring clip towards the outlet when the control push rod is pushed. When the opening of the spring clip contacts the second stop, the bevel forcibly opens the opening, facilitating the insertion of the mounting panel; then, the push rod continues to move, causing the spring clip to close, and the panel is automatically clamped. During installation, simply pushing the push rod continuously completes the actions of opening the spring clip, inserting the mounting panel into the spring clip, and clamping the mounting panel, without the need for any additional components.

[0018] Furthermore, the symmetrical control push rods can control multiple sets of spring clips to provide balanced clamping force and prevent the panel from tilting or being subjected to uneven force during installation. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a changeover switch that is easy to install automatically according to this utility model; Figure 2 This is a structural diagram of a mounting base in a changeover switch that is easy to install automatically according to this utility model; Figure 3 This is a structural diagram of the left and right push rods and spring clips in a changeover switch that is easy to install automatically according to this utility model; Figure 4 This utility model relates to an internal structure of the mounting slot in a changeover switch that facilitates automated installation; Figure 5 This utility model relates to a changeover handle fixing hole structure in a changeover switch that facilitates automated installation; Figure 6 This is a cross-sectional view of a changeover switch handle that is not clamped when it is easy to install automatically according to this utility model. Figure 7 This is a cross-sectional view of the changeover switch handle of this utility model when it is clamped, which is convenient for automated installation.

[0020] In the diagram, 1. Knob; 2. Mounting base; 21. Push rod seat; 211. Push rod groove; 212. Stepped surface; 213. First stop; 214. Notch; 22. Positioning seat; 221. Spring clip outlet; 222. Mounting slope; 223. Second stop; 3. Contact system; 4. Left push rod; 41. Left push rod head; 42. Left push rod shoulder; 43. Left push rod end; 5. Right push rod; 51. Right push rod head; 52. Right push rod shoulder; 53. Right push rod end; 6. Spring clip; 61. Rolled edge; 62. Boss; 7. Mounting panel; 71. Mounting hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0022] This utility model discloses a changeover switch that is easy to install automatically, referring to... Figures 1-7 The device includes a knob 1, a mounting base 2, and a contact system 3. The mounting base 2 includes a push rod seat 21 near the knob 1 and a positioning seat 22 near the contact system 3. The push rod seat 21 and the positioning seat 22 form a hollow cavity, and a stepped surface 212 is formed at the connection between the push rod seat 21 and the positioning seat 22. The stepped surface 212 is used to contact the mounting panel 7. During installation, a mounting hole 71 is opened on the mounting panel 7, and the contact system 3 passes through the mounting hole 71, so that the mounting panel 7 contacts the stepped surface 212. The mounting shell of the contact system 3 is connected to the positioning seat 22 by bolts, and the central axis of the contact system 3 passes through the push rod seat 21 and the positioning seat 22 and is connected to the knob 1.

[0023] The push rod seat 21 has a push rod groove 211 on its side wall. A control push rod is slidably mounted in the push rod groove 211. The control push rod is C-shaped and includes a horizontal push rod and two vertical ends. The two vertical ends are connected to the two ends of the horizontal push rod, and the other end of the vertical ends is connected to the boss 62 of the spring clip 6. A first stop 213 is provided at the push rod groove 211 to fix the control push rod. A second stop 223 is provided at the outlet 221 of the spring clip 6 to open the opening of the spring clip 6. The second stop 223 is inclined and faces the inside of the cavity.

[0024] The horizontal push rod includes a rod head and two rod shoulders, which are respectively connected to the two sides of the rod head. The rod shoulders cooperate with the first stop block 213, and the other end of the rod shoulder is connected to the vertical end. When the first stop block 213 cooperates with the rod shoulder, the rod shoulder is located at the tail of the first stop block 213, and the outermost part of the rod head is at least flush with the outer side wall of the push rod seat 21 to ensure the flatness of the outer side of the switch.

[0025] A sliding spring clip 6 is installed in the hollow cavity. The spring clip 6 is a clip made of metal spring sheet, with an open head and a closed tail. One end of the control push rod is connected to the tail of the spring clip 6, and the other end extends out from the push rod groove 211. The positioning seat 22 has a spring clip 6 outlet 221, with the opening of the spring clip 6 facing the spring clip 6 outlet 221. The head of the spring clip 6 has a rolled edge 61, and the tail has a boss 62. The control push rod is rotatably connected to the boss 62. The rolled edge 61 is for easy sliding, and the boss 62 is for easy installation. To ensure the connection between the control push rod and the boss 62, the vertical end of the control push rod can be bent after passing through the boss 62 to prevent the connection from being broken. The spring clip allows the edge of the mounting panel 7 and the stepped surface 212 to be clamped simultaneously, with the spring force providing a self-adjusting clamping force. No additional fasteners are required, and it can adapt to different thicknesses of the mounting panel 7.

[0026] The opening of the spring clip 6 consists of an upper spring plate and a lower spring plate, which are located on the upper and lower sides of the step, respectively.

[0027] As the spring clip 6 moves toward the outlet 221, the second stop 223 opens the opening of the spring clip 6. The upper spring plate of the spring clip 6 gradually opens under the action of the inclined plane, while the lower spring plate moves below the stepped surface 212 until it abuts against the inner wall of the push rod seat 21. At this time, the shoulder of the control push rod is pushed into the cavity of the push rod seat 21, and the shoulder is located inside the second stop 223, which fixes its position, thus fixing the position of the spring clip 6.

[0028] The first stop 213 is set at an angle, and the angle faces the outside of the cavity. The angle is set to facilitate the sliding of the control push rod and reduce friction.

[0029] A notch 214 is provided at the push rod slide 211. The notch 214 is set at an angle and the angle faces outward. The angled notch 214 is to facilitate the removal of the switch. When it is necessary to remove the changeover switch, a flathead screwdriver is inserted from here to pry out the control push rod.

[0030] There are two symmetrically arranged control push rods, each controlling a set of spring clips 6, which consists of two spring clips 6. The two symmetrical control push rods are designated as left push rod 4 and right push rod 5. The two push rods have similar structures, but the length of the lateral push rod of right push rod 5 is greater than the length of the lateral push rod of left push rod 4. Taking the two control push rods as an example, the specific structure is as follows: like Figure 1 The switch shown consists of a knob 1, a mounting base 2, and a contact system 3. The main innovation of this invention is the structural design of the mounting base 2.

[0031] like Figure 2As shown, the mounting base 2 is a plastic shell with a specific internal cavity structure. The mounting base 2 is divided into two parts: the part near the knob 1 is the push rod seat 21, and the part near the contact system 3 is the positioning seat 22. The push rod seat 21 houses the left push rod 4 and the right push rod 5.

[0032] The push rod seat 21 has a long, open push rod groove 211 on each of its left and right sides. The left push rod 4 and the right push rod 5 extend from the push rod grooves 211 on both sides. The positioning seat 22 is smaller than the push rod seat 21 and has a stepped surface 212 at the rear of the push rod seat 21, which is used to contact the mounting panel. The positioning seat 22 has a square or rectangular cross-section to mate with the fixing holes on the mounting panel. The positioning seat 22 has two spring clip outlets 221 on each of its left and right sides. The positioning seat 22 has a mounting ramp 222 on each side of the spring clip outlets 221 to guide the positioning seat 22 into the mounting hole 71.

[0033] like Figure 3 As shown, the left push rod 4 has a C-shaped structure made of bent metal wire. The left push rod 4 has a protruding section in the middle, the left push rod head 41, and the straight sections on both sides of the left push rod head 41 are the left push rod shoulders 42. The tail of the left push rod 4 has two left push rod ends 43. Each left push rod end 43 is connected to two spring clips 6. The spring clips 6 are clips made of metal springs, with a rolled edge 61 at the head and a boss 62 at the tail. The tail of the spring clips 6 connects to the left push rod ends 43. The right push rod 5 has the same structure as the left push rod 4, but is slightly wider than the left push rod 4, facilitating cross-mounting within the mounting base 2. The right push rod 5 also has a right push rod head 51, a right push rod shoulder 52, and a right push rod end 53.

[0034] like Figure 4 As shown, the front wall of the push rod slide 211 has two first stops 213 with outward-facing bevels. When the left push rod 4 is pushed into the push rod slide, these stops are used to block the left push rod shoulder 42 and prevent the left push rod 4 from sliding out. The front wall of the push rod slide 211 has a notch 214 with a bevel in the middle. When it is necessary to disassemble the changeover switch, a flathead screwdriver can be inserted from here to pry out the left push rod 4.

[0035] The front wall of the spring clip outlet 221 is provided with two protruding second stops 223, with the inclined surfaces facing inward. When the spring clip 6 moves outward, these two second stops open the spring clip opening, making it easier for the spring clip to clamp the mounting plate.

[0036] like Figure 5 As shown, a square or rectangular mounting hole 71 is made on the mounting panel 7. The mounting hole 71 is larger than the contact system 3, slightly larger than the positioning seat 22, and smaller than the push rod seat 21. When installing the change handle, the contact system 3 is passed through the mounting hole 71 from the front of the mounting panel 7, so that the front of the mounting panel 7 contacts the stepped surface 212. At this time, the positioning seat 22 is exactly locked in the mounting hole 71.

[0037] like Figure 6 The diagram shows a cross-sectional view of the changeover handle just inserted into the mounting hole but not yet clamped. At this point, the left push rod head 41 and the right push rod head 51 are pushed from the left and right sides respectively. Taking the right push rod 5 as an example, pushing the right push rod head 51 to the left causes the spring clip 6 connected to its tail to move to the left. As the spring clip 6 moves to the left, the spring clip's rolled edge 61 contacts the second stop 223. The spring clip 6 continues to move to the left, and the second stop 223 opens the opening of the spring clip 6. The spring clip continues to move to the left, clamping the mounting base 2 and the mounting plate 7 together, as shown. Figure 7 As shown. When the spring clip 6 moves to its leftmost position, it is blocked by the inner wall of the mounting base 2. At this time, the right push rod shoulder 52 moves into the stop block 213 and is blocked by the stop block to prevent the right push rod from moving backward. The movement of the left push rod 4 is the same as the movement of the right push rod 5 but in the opposite direction. At this time, the shape and size of the positioning base 22 and the mounting hole 71 are exactly matched, and it is locked in the middle of the mounting hole 71 to prevent the conversion handle from rotating. Multiple spring clips 6 clamp the mounting base 22 and the mounting panel 7 to prevent the conversion handle from falling out of the mounting hole. At this time, the installation of the conversion handle is completed.

[0038] When it is necessary to disassemble the changeover handle, insert a flathead screwdriver into notch 214, pry out the push rod, pull the push rods on both sides outward, retract the spring clip into the mounting base, release the changeover switch from the mounting panel, and pull out the changeover switch from the front of the mounting panel to complete the removal of the changeover switch.

[0039] This utility model discloses a changeover switch that facilitates automated installation. Multiple slidable spring clips 6 are installed within the mounting base 2 of the changeover switch. These spring clips 6 are driven by a push rod 4, which pushes the push rod 4 to drive the spring clips 6 to slide, achieving rapid clamping and release between the changeover switch mounting base 2 and the mounting panel 7. The clamping mechanism and the changeover switch are integrated as a single unit, eliminating the need to disassemble the changeover switch during installation and thus saving installation steps. During installation, the changeover switch is inserted from the front of the mounting panel 7, and the spring clips 6 are driven from the front of the mounting panel 7. This eliminates the need for operation from both sides of the mounting panel 7; a single robotic arm can complete the operation, simplifying the installation process.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the technical solution of the present utility model in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present utility model, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A changeover switch that is easy to install automatically, characterized in that, It includes a knob (1), a mounting base (2) and a contact system (3). The mounting base (2) includes a push rod seat (21) near the knob (1) and a positioning seat (22) near the contact system (3). The push rod seat (21) and the positioning seat (22) form a hollow cavity. A stepped surface (212) is formed at the connection between the push rod seat (21) and the positioning seat (22). The stepped surface (212) is used to contact the mounting panel (7). The push rod seat (21) has a push rod groove (211) on its side wall. A control push rod is slidably arranged in the push rod groove (211). A sliding spring clip (6) is arranged in the hollow cavity. The spring clip (6) is a clip made of metal spring. The head of the spring clip (6) is open and the tail is closed. One end of the control push rod is connected to the tail of the spring clip (6), and the other end extends out from the push rod groove (211). The positioning seat (22) has a spring clip (6) outlet (221). The opening of the spring clip (6) faces the spring clip (6) outlet (221). A first stop (213) is provided at the push rod slide (211) to fix the control push rod; a second stop (223) is provided at the spring clip (6) outlet (221) to open the spring clip (6); the opening of the spring clip (6) is composed of an upper spring plate and a lower spring plate, which are located on the upper and lower sides of the step respectively.

2. The changeover switch for easy automated installation according to claim 1, characterized in that, The head of the spring clip (6) is provided with a rolled edge (61), and the tail is provided with a boss (62). The control push rod is rotatably connected to the boss (62).

3. The changeover switch for easy automated installation according to claim 2, characterized in that, The control push rod is C-shaped, including a horizontal push rod and two vertical ends. The two vertical ends are connected to the two ends of the horizontal push rod, and the other end of the vertical end is connected to the boss (62) of the spring clip (6).

4. The changeover switch for easy automated installation according to claim 3, characterized in that, The lateral push rod includes a head and two shoulders, which are connected to the two sides of the head respectively. The shoulders cooperate with the first stop (213), and the other end of the shoulder is connected to the vertical end.

5. The changeover switch for easy automated installation according to claim 4, characterized in that, The first stop (213) is set with an inclined surface, and the inclined surface faces the outside of the cavity.

6. The changeover switch for easy automated installation according to claim 5, characterized in that, The second stop (223) is set at an angle, and the angle faces the inside of the cavity.

7. The changeover switch for easy automated installation according to claim 3, characterized in that, There are two control push rods symmetrically arranged. Each push rod controls a set of spring clips (6). A set of spring clips (6) includes two spring clips (6).

8. The changeover switch for easy automated installation according to claim 7, characterized in that, The two symmetrical control push rods are referred to as the left push rod (4) and the right push rod (5). The two push rods have similar structures, but the length of the lateral push rod of the right push rod (5) is greater than the length of the lateral push rod of the left push rod (4).

9. The changeover switch for easy automated installation according to claim 1, characterized in that, A notch (214) is provided at the push rod slide (211), the notch (214) is set on an inclined surface, and the inclined surface faces outward.

10. The changeover switch for easy automated installation according to claim 1, characterized in that, During installation, mounting holes (71) are made on the mounting panel (7), the contact system (3) passes through the mounting holes (71), and the mounting panel (7) contacts the step surface (212).

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