A movable "∩" type multifunctional tile pad combined screw wiring device

Abstract

The application discloses a movable "∩" type multifunctional tile pad combined screw wiring device, which comprises a first shell and a second shell buckled on the side surface of the first shell, square cavities are symmetrically arranged in the inner cavity of the first shell, and the square cavities are provided with inclined first guide rails; the second shell is symmetrically provided with second guide rails, the second guide rails and the first guide rails are combined into a complete cylindrical guide rail, the cylindrical guide rail is provided with a "∩" type multifunctional tile pad screw combination and is slid in the cylindrical guide rail; the "rod type" terminal, the "∪" terminal and the "○" type terminal can be simultaneously satisfied, the labor and the working hours of wiring are reduced by 50%, the wiring efficiency is doubled, and the effects of obviously reducing the working burden and the working hours and improving the wiring quality are achieved.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, specifically to a movable “∩”-shaped multifunctional combination pad screw wiring device. Background Technology

[0002] Among the three types of wiring, namely "rod" terminals, "U" terminals, and "○" terminals, "○" terminals are more favored by users due to their advantages such as reliable wiring, strong vibration resistance, and resistance to detachment. In particular, users in fields such as high-speed rail, frequency conversion, and construction machinery generally choose "○" terminals.

[0003] Currently, the washer-screw combination used in domestic low-voltage electrical appliances such as small current contactors, push-button switches, and indicator lights can connect "O" terminal wires, but the connection requires four steps: First, remove the washer-screw combination from the terminal block; second, put the "O" terminal onto the screw of the washer-screw combination; third, align the screw with the screw hole of the terminal block; fourth, tighten the screw and connect the wire. This cumbersome wiring operation increases the workload of wiring workers, reduces wiring efficiency, and causes great inconvenience to users.

[0004] Therefore, there is an urgent need for a multi-functional combination screw wiring device that can simplify the cumbersome wiring process, further reduce the amount of wiring work, and improve the efficiency of wiring operations. Summary of the Invention

[0005] The purpose of this invention is to provide a movable “∩” type multi-functional tile washer combination screw wiring device, which can reduce the wiring operation of “○” terminal wire to two steps. The first step is to insert the “○” terminal into the wiring hole position, and the second step is to push and tighten the multi-functional tile washer combination screw wiring device, so as to solve the shortcomings of the prior art: 1) cumbersome wiring steps and large workload; 2) low wiring operation efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A movable "∩"-shaped multi-functional washer-screw assembly wiring device includes a first housing and a second housing fastened to the side of the first housing. The first housing has symmetrically arranged square cavities within its inner cavity, each containing an inclined first guide rail. The second housing has symmetrically arranged second guide rails, identical in shape and position to the first guide rails. When the second housing is fastened to the side of the first housing, the second and first guide rails combine to form a complete cylindrical guide rail. A "∩"-shaped multi-functional washer-screw assembly is installed within this cylindrical guide rail and slides within it. The bottom of the square cavity has a bottom surface with a cylindrical hole larger in diameter than the width of the first guide rail, containing a bolt head. The square cavity also contains a U-shaped guide rail parallel to the first guide rail, with a spring seat at the top and U-shaped guide rail end faces on both sides of the spring seat. A clamping device is also installed in the side cavity of the U-shaped guide rail, with a semi-circular guide groove on one edge. The bottom of the U-shaped guide groove is provided with a guide groove bottom surface that adapts to the shape of the U-shaped guide rail end face. When the clamping device is installed in the cavity of the U-shaped guide rail, the semi-circular guide groove and the U-shaped guide rail form a circular guide hole, in which a return spring is installed; the "∩"-shaped multi-functional pad screw assembly includes a cross pan head screw, which has a bolt head at the top and a bolt tail at the bottom. A "∩"-shaped pad is movably connected between the bolt head and the bolt tail, and a "∩"-shaped pad is provided between the "∩"-shaped pad and the bolt head. Anti-reverse component; "∩" shaped tile pad includes a tile pad top surface that is tightly attached to the bottom surface, and guide arms perpendicular to the tile pad top surface are respectively provided on opposite sides of the tile pad top surface. The guide arms are embedded in the first guide rail; an L-shaped support is fixedly connected to one side of the tile pad top surface; the L-shaped support includes a connecting arm fixedly connected to one side of the tile pad top surface, and a sliding arm is vertically connected to the other end of the connecting arm. The end of the sliding arm is provided with an arc-shaped slider, which is embedded in a circular guide hole and slides within the circular guide hole.

[0008] Preferably, the top of the first guide rail is connected to a terminal block, the bottom surface of which is provided with a terminal block pressure end and a terminal block threaded hole in the middle.

[0009] Preferably, the reset spring includes a first end, a second end, and a middle part of the spring, wherein the first end abuts against the upper surface of the slider, and the second end abuts against the spring seat.

[0010] Preferably, the first end spiral is conical and wound 2-10 times; the second end spiral is conical and wound 2-10 times.

[0011] Preferably, claw-shaped bending structures are provided at the top corners of the top surface of the tile pad.

[0012] Preferably, a wedge-shaped positioning rib is provided on one side of the clamping device.

[0013] Preferably, a U-shaped wedge is provided in the middle of the first housing, and the U-shaped wedge is interference-fitted with the positioning rib.

[0014] The beneficial effects of this invention are as follows:

[0015] (1) In this invention, a first guide rail is provided in the square cavity formed by the first housing and the second housing. The guide arm on the "∩" shaped pad is embedded in the circular guide hole formed by the first guide rail and the second guide rail, which can make the "∩" shaped multi-functional pad screw assembly move in a directional manner. Furthermore, the positioning is achieved by matching the dimensional tolerances of the guide arm, the first guide rail, and the second guide rail, ensuring that the screw on the cross pan head screw is aligned with the center of the threaded hole of the terminal block. This achieves the effect of accurately engaging without deviation when the screw is pushed to move, making the screw positioning guide precise and reliable.

[0016] (2) The “∩” type pad has an L-shaped support. The return spring is installed between the slider on the L-shaped support and the fixed seat of the first housing and is in a compressed state. Under the action of the return spring, the L-shaped support drives the “∩” type multi-functional pad screw assembly to be limited to the bottom of the square cavity formed by the first housing and the second housing. At this time, the bolt head is disengaged from the threaded hole of the terminal block and maintains a distance, which can fully accommodate the volume of the “○” type terminal, the “rod” type terminal, and the “∪” type terminal. When inserted into the wiring part, there is no obstruction, so that the three types of terminal blocks can be connected without removing the screws, which greatly simplifies the wiring steps and improves the user's wiring efficiency.

[0017] (3) Through the structural design of a movable “∩” type multi-functional tile pad combined screw wiring device, it can simultaneously meet the wiring requirements of “rod” type terminal, “∪” type terminal and “○” type terminal. At the same time, the wiring operation steps of “○” type terminal wire are reduced from four steps in the existing technology to two steps. The amount of labor and time for wiring is reduced by 50%, and the wiring efficiency is doubled. It has the effect of significantly reducing the workload and time and improving the quality of wiring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is an isometric view of the first housing of the present invention;

[0020] Figure 3 This is a schematic diagram of the "∩"-shaped multifunctional tile washer screw assembly structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the "∩" shaped tile pad structure of the present invention;

[0022] Figure 5 This is a cross-sectional view of the guide arm and square cavity structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the pressing device structure of the present invention;

[0024] Figure 7 This is a top view of the circular guide hole of the present invention.

[0025] Figure 8 This is a cross-sectional view (front view) of the circular guide hole of the present invention.

[0026] Figure 9 This is a schematic diagram of the reset spring structure of the present invention;

[0027] Figure 10 This is an isometric view of the second housing of the present invention;

[0028] In the diagram: 1-First housing, 101-Square cavity, 102-First guide rail, 103-U-shaped guide rail, 104-Spring seat, 105-Bottom surface, 106-U-shaped wedge, 107-Cylindrical hole, 108-U-shaped guide rail end face, 2-“∩”-type multi-functional pad and screw assembly, 3-“∩”-type pad, 301-L-shaped support, 302-Slider, 303-Pad top surface, 304-Guide arm, 305-Sliding arm, 306-Connecting arm, 307-Claw type 4-Bending structure, 5-Anti-reverse component, 6-Phillips pan head screw, 7-Bolt head, 8-Bolt tail, 9-Connecting plate, 10-Connecting plate wire clamping end, 11-Connecting plate threaded hole, 12-Reset spring, 13-First end, 14-Second end, 15-Spring middle, 16-Clamping device, 17-Semi-circular guide groove, 18-Positioning rib, 19-Guide groove bottom surface, 10-Circular guide hole, 10-Second housing, 11-Second guide rail. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] like Figure 1-10 The movable “∩”-shaped multi-functional pad and screw combination wiring device shown includes a first housing 1, a “∩”-shaped multi-functional pad and screw combination 2, a “∩”-shaped pad 3, a backstop 4, a cross pan head screw 5, a wiring board 6, a return spring 7, a clamping device 8, and a second housing 9.

[0031] The “∩”-shaped multi-functional shim screw assembly 2 is disposed within a sealed square cavity 101 formed by the first housing 1 and the second housing 9. A first guide rail 102 is provided in the first housing 1, and a second guide rail 901 is provided in the second housing 9. When the second housing 9 is fastened to the side of the first housing 1, the second guide rail 901 and the first guide rail 102 combine to form a complete cylindrical guide rail. The two guide arms 304 of the “∩”-shaped shim 3 are respectively embedded in the cylindrical guide rail. The bolt head 501 on the cross pan head screw 5 is disposed in the cylindrical hole 107 provided in the first housing 1, which plays a positioning and guiding role for the “∩”-shaped multi-functional shim screw assembly 2, ensuring that the bolt tail 502 is aligned with the center of the threaded hole 602 of the terminal block 6, so that the “∩”-shaped multi-functional shim screw assembly 2 can be accurately engaged without deviation when it is pushed to move.

[0032] The “∩”-shaped pad 3 is designed with an L-shaped support 301. The end of its sliding arm 305 is designed to be circular, and a circular slider 302 is opened at the top of the circular part. The end of the sliding arm 305 is vertically embedded in the ∪-shaped guide rail 103 of the first housing 1. The first end 701 of the return spring 7 is set on the slider 302, and the second end 702 of the return spring 7 is set on the spring seat 104 opened on the ∪-shaped guide rail 103. After the return spring 7 is installed, it is in a compressed state. Under the action of the return spring 7, the L-shaped support 301 drives the “∩”-shaped multi-functional pad screw assembly 2 to be limited to the bottom surface 105 of the square cavity 101 formed by the first housing 1 and the second housing 9. At this time, the bolt tail 502 is disengaged from the terminal block pressure end 601 and maintains a certain distance.

[0033] The four corners of the “∩” shaped pad 3 are bent to form a claw-shaped bending structure 307. An anti-loosening element 4 is set between the “∩” shaped pad 3 and the cross pan head screw 5.

[0034] The clamping device 8 has a semi-circular guide groove 801. The diameter of the semi-circular guide groove 801 is equal to the diameter of the U-shaped guide rail 103 of the first housing 1. The bottom surface 803 of the semi-circular guide groove 801 fits against the end face 108 of the U-shaped guide rail, forming a circular guide hole 804. The reset spring 7 is set in the circular guide hole 804, which can effectively ensure that the reset spring is reliably assembled and moves flexibly.

[0035] The clamping device 8 has a wedge-shaped positioning rib 802, and the first housing 1 has a U-shaped wedge opening 106. The positioning of the return spring 7 is achieved through the interference fit between the positioning rib 802 and the U-shaped wedge opening 106.

[0036] The reset spring 7 includes a first end 701, a second end 702, and a spring middle part 703. The spirals of the first end 701 and the second end 702 are both designed to be conical and wrapped five times. The spring middle part 703 is designed to be a columnar spiral.

[0037] Working principle: During initial wiring of this movable "∩"-shaped multi-functional washer-screw combination device, the "∩"-shaped multi-functional washer-screw combination 2 and the terminal block 6 are in a detached state. The bolt tail 502 on the Phillips head screw 5 is detached from the terminal block's wire clamping end 601, maintaining sufficient distance to allow for unobstructed insertion of "rod" terminals, "∪" terminals, and "○" terminals. When wiring, first insert the wire terminals along the terminal block's wire clamping end 601 on the terminal block 6, and then manually... The working screwdriver presses against and pushes the bolt head 501 on the Phillips head screw 5. At this time, the "∩"-shaped multi-functional pad screw assembly 2 will move from the bottom surface 105 position on the square cavity 101 to the terminal block pressure end 601 position along the first guide rail 102 and the second guide rail 901. The bolt tail 502 is aligned with the terminal block threaded hole 602 on the terminal block 6. The screwdriver is rotated clockwise to complete the wiring. The anti-reverse part 4 can prevent the screw from loosening. At the same time, the return spring 7 will be compressed twice along the ∪-shaped guide rail 103.

[0038] When the wire is loosened, the moment the cross-head screw 5 and the threaded hole 602 of the terminal block disengage, the "∩"-shaped multi-functional pad screw assembly 2 will automatically spring back to the bottom 105 position under the action of the secondary compression reaction force of the return spring 7, and the wire terminal will automatically disengage.

[0039] In this invention, a first guide rail is provided within the square cavity formed by the first and second housings. The guide arm on the "∩"-shaped pad is embedded in the circular guide hole formed by the first and second guide rails, allowing the "∩"-shaped multi-functional pad screw assembly to move in a directional manner. Furthermore, the dimensional tolerances of the guide arm, the first guide rail, and the second guide rail ensure that the screw on the Phillips head screw is aligned with the center of the threaded hole on the terminal block, achieving accurate and non-displaced engagement when the screw is moved. This results in precise and reliable screw positioning and guidance. The "∩"-shaped pad has an L-shaped support member and a return spring is installed. The slider on the L-shaped support is in a compressed state between the fixed seat of the first housing and the slider on the L-shaped support. Under the action of the return spring, the L-shaped support drives the "∩"-shaped multi-functional pad screw assembly to be limited to the bottom of the square cavity formed by the first housing and the second housing. At this time, the bolt head is disengaged from the threaded hole of the terminal block and maintains a certain distance, which can fully accommodate the volume of the "○" type terminal, "rod" type terminal, and "∪" type terminal. There is no obstruction when inserting the terminal block into the terminal block position. This allows the three types of terminal blocks to be wired without removing the screws, which greatly simplifies the wiring steps and improves the user's wiring efficiency.

[0040] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, based on the technical teachings provided by the present invention and as common knowledge in the mechanical field, other equivalent modifications and improvements can be made, which should also be considered within the scope of protection of the present invention.

Claims

1. A movable "∩"-shaped multi-functional tile washer combination screw wiring device, characterized in that: The first housing (1) includes a first housing (1) and a second housing (9) that is fastened to the side of the first housing (1). A square cavity (101) is symmetrically arranged in the inner cavity of the first housing (1), and an inclined first guide rail (102) is arranged in the square cavity (101). A second guide rail (901) is symmetrically arranged on the second housing (9). The second guide rail (901) has the same shape and is symmetrically positioned with the first guide rail (102). When the second housing (9) is fastened to the side of the first housing (1), the second guide rail (901) and the first guide rail (102) are combined to form a complete cylindrical guide rail. A "∩" type multi-functional pad screw assembly (2) is provided in the cylindrical guide rail and slides in the cylindrical guide rail. The square cavity (101) has a bottom surface (105) at the bottom, and a cylindrical hole (107) with a diameter larger than the width of the first guide rail (102) is provided in the bottom surface (105). A bolt head (501) is provided in the cylindrical hole (107). A U-shaped guide rail (103) parallel to the first guide rail (102) is also provided in the square cavity (101). A spring seat (104) is provided on the top of the U-shaped guide rail (103), and U-shaped guide rail end faces (108) are provided on both sides of the spring seat (104). A clamping device (8) is also provided in the side cavity of the U-shaped guide rail (103). A semi-circular guide groove (801) is provided on one edge of the clamping device (8). The bottom of the semi-circular guide groove (801) is provided with a guide groove bottom surface (803) that is adapted to the shape of the end face (108) of the U-shaped guide rail. When the clamping device (8) is installed in the cavity of the U-shaped guide rail (103), the semi-circular guide groove (801) and the U-shaped guide rail (103) form a circular guide hole (804). A reset spring (7) is installed in the circular guide hole (804). The "∩" type multi-functional pad screw assembly (2) includes a cross pan head screw (5), which has a bolt head (501) at the top and a bolt tail (502) at the bottom. A "∩" type pad (3) is movably connected between the bolt head (501) and the bolt tail (502), and a backstop (4) is provided between the "∩" type pad (3) and the bolt head. The "∩" shaped tile pad (3) includes a tile pad top surface (303) that is tightly attached to the bottom surface (105). On opposite sides of the tile pad top surface (303), there are guide arms (304) perpendicular to the tile pad top surface (303). The guide arms (304) are embedded in the first guide rail (102). An L-shaped support member (301) is fixedly connected to one side of the tile pad top surface (303). The L-shaped support member (301) includes a connecting arm (306) fixedly connected to one side of the tile pad top surface (303). The other end of the connecting arm (306) is vertically connected to a sliding arm (305). The end of the sliding arm (305) is provided with an arc-shaped slider (302). The slider (302) is embedded in a circular guide hole (804) and slides in the circular guide hole (804).

2. The movable "∩"-shaped multifunctional tile washer combination screw wiring device according to claim 1, characterized in that: The top of the first guide rail (102) is connected to a terminal block (6), and the bottom surface of the terminal block (6) is provided with a terminal block pressure end (601) and a terminal block threaded hole (602) is opened in the middle.

3. A movable "∩"-shaped multifunctional tile washer combination screw wiring device according to claim 1 or 2, characterized in that: The reset spring (7) includes a first end (701), a second end (702) and a spring middle (703). The first end (701) abuts against the upper surface of the slider (302) and the second end (702) abuts against the spring seat (104).

4. A movable "∩"-shaped multifunctional washer-screw wiring device according to claim 3, characterized in that: The first end (701) has a conical spiral that is wound 2-10 times; the second end (702) has a conical spiral that is wound 2-10 times.

5. A movable "∩"-shaped multifunctional tile washer combination screw wiring device according to claim 4, characterized in that: Claw-shaped bending structures (307) are respectively provided at the top corners of the top surface (303) of the tile pad.

6. A movable "∩"-shaped multifunctional tile washer combination screw wiring device according to claim 5, characterized in that: A wedge-shaped positioning rib (802) is provided on one side of the clamping device (8).

7. A movable "∩"-shaped multifunctional washer-screw wiring device according to claim 6, characterized in that: The first housing (1) has a U-shaped wedge (106) in the middle, which is press-fitted with the positioning rib (802).

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