A wiring terminal mounting and fixing structure

Abstract

The utility model discloses a kind of wiring terminal installation fixed structure, it is related to wiring terminal technical field, including base, base top fixedly installed wiring terminal body, wiring terminal body is equipped with multiple wire connecting parts, the top of base is fixedly installed protective cover, protective cover is fixedly connected through the thread hole reserved on base with first bolt, the periphery of protective cover is all set up and wiring terminal body matches threading hole;Clamping and fixing mechanism, clamping and fixing mechanism includes multiple mounting brackets, multiple mounting brackets are divided into two groups and are fixedly installed on the top of base, and two groups of mounting brackets are located at the front and back of protective cover respectively.The utility model can effectively improve the auxiliary fixing effect of wire, thereby effectively reduce the risk and probability that wire and wiring terminal appear to fall off separation, and can be suitable for a variety of different diameter wires within a certain range, effectively improve its application range, and the practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a terminal block mounting and fixing structure. Background Technology

[0002] Terminal blocks are electrical connection components primarily used for connecting or securing wires and cables. They typically consist of an insulating shell and a conductive metal part, ensuring a safe and reliable electrical connection. Their applications are wide-ranging, including electrical control cabinets, household appliances, industrial equipment, building electrical systems, and almost any other application requiring electrical connections. Using terminal blocks improves connection reliability and safety, and facilitates maintenance and replacement. In existing technology, to reduce the likelihood of cables detaching from terminal blocks, a mounting and securing structure is usually added at the terminal block to further secure the cable and reduce the probability of detachment, as follows.

[0003] A search revealed patent CN222763305U, which discloses a terminal block mounting and fixing structure. The structure includes a terminal block with evenly distributed fixing components mounted on its outer wall. Mounting holes are located at the four corners of the terminal block's outer wall, and mounting components are installed within these holes. Each fixing component includes a base, a semi-ring positioned at the center of the outer wall of the base's top, and a fixing groove on the outer wall of the base opposite to the semi-ring. The mounting components include mounting screws inserted into the mounting holes and washers one and two fitted onto the outer wall of the mounting screws. This invention inserts the mounting screw into the mounting hole before fitting the washer two. A buffer spring, combined with the limiting effect of the mounting screw, provides the terminal block with a certain amount of passive movement space, facilitating the reduction of environmental vibrations. A contact plate compression support spring clamps the wire, preventing vibrations from the wire from being transmitted to the wire connector and reducing the likelihood of wire detachment.

[0004] However, the aforementioned terminal block mounting and fixing structure still has the following areas for improvement. For example, it relies on the elastic force of a spring to force two contact plates closer together to clamp the cable, thereby achieving the purpose of auxiliary cable fixing. However, relying solely on the elastic force of the spring in conjunction with the two contact plates is insufficient to effectively clamp and fix the cable. For instance, the spring force is not stable enough, and the clamping force it can provide is relatively limited. In the event of vibration, the cable and the contact plates are prone to relative sliding, which increases the risk and probability of the cable falling off at the connection point with the terminal block. Furthermore, the contact area between the planar structure of the contact plate and the cable is small, resulting in poor cable clamping and fixing effect. At the same time, different cables have different diameters. Since the same spring provides the same force, when the cable diameter is small, the distance between the two contact plates is small, resulting in a smaller clamping force on the cable. When the cable diameter is large, the distance between the two contact plates is large, resulting in a larger clamping force on the cable. This leads to different clamping and fixing effects for cables of different diameters, resulting in poor practicality. Therefore, a new terminal block mounting and fixing structure is urgently needed to solve the above technical problems. Utility Model Content

[0005] This utility model discloses a terminal block installation and fixing structure. By incorporating a clamping and fixing mechanism, during wiring, one end of the wire can be passed between the support block and the pressure block, and then fixedly connected to the wire connection point. At this point, rotating the corresponding clamping knob moves the pressure block downwards, effectively clamping and fixing the wire in conjunction with the support block. During subsequent operations, because the wire is clamped and fixed by the pressure block and support block, and the clamping force and stability are both high (non-elastic force), relative sliding between the wire and the support block and pressure block can be effectively avoided, thus reducing the risk and probability of the wire detaching from the connection point. Furthermore, the V-groove design of the support block and pressure block allows it to be used with various wire diameters within a certain range, effectively improving its applicability. Simultaneously, the clamping force for different wire diameters is not affected by the wire diameter; simply rotating the corresponding clamping knob according to the different wire diameters moves the pressure block downwards, cooperating with the support block to clamp and fix the wire. In summary, this solves the problems in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a terminal block mounting and fixing structure, including a base, a terminal block body fixedly mounted on the top of the base, a plurality of wire connection parts provided on the terminal block body, a protective cover fixedly mounted on the top of the base, the protective cover being fixedly connected to a threaded hole reserved on the base by a first bolt, and wire through holes matching the terminal block body being provided around the protective cover.

[0008] A clamping and fixing mechanism includes multiple mounting brackets, which are divided into two groups and fixedly installed on the top of the base. The two groups of mounting brackets are located on the front and rear sides of the protective cover, respectively. The positions of the mounting brackets are matched with the positions of multiple wire holes. The mounting brackets are inverted U-shapes. Two support blocks are fixedly connected inside the mounting brackets. The support blocks are close to the bottom of the mounting brackets and there is a certain distance between the two support blocks. A clamping knob is screwed through the top of the mounting brackets. The bottom of the clamping knob is rotatably connected to a pressure block through a rotating connector. The two sides of the pressure block are respectively attached to the inner sides of the mounting brackets. The pressure block is located between the two support blocks, and the longitudinal dimension of the pressure block is smaller than the distance between the two support blocks. The height of the pressure block is higher than the support blocks. V-shaped grooves are opened on the top of the support blocks and the bottom of the pressure block.

[0009] A shock-absorbing mechanism is located at the bottom of the base.

[0010] Furthermore, the edges of the V-grooves of the support block and the pressure block are provided with arc-shaped chamfers, and the edges of the wire hole are also provided with arc-shaped chamfers.

[0011] Furthermore, anti-slip pads are attached and fixed to the inner walls of the V-grooves of both the support block and the pressure block, and the anti-slip pads are made of rubber material.

[0012] Furthermore, the bottom height of the support block is flush with the bottom height of the mounting bracket, and both sides of the pressure block are smooth surfaces.

[0013] Furthermore, the buffer and shock absorption mechanism includes a mounting base, which has mounting holes near its four inner corners. Second bolts are movably inserted through the mounting holes. Four damping rods are fixedly connected to the top of the mounting base. The top of the damping rods is fixedly connected to the bottom of the base, and the four damping rods are respectively located near the four inner corners of the base. Springs are sleeved on the outside of the damping rods, and the two ends of the springs are fixedly connected to the mounting base and the base, respectively.

[0014] Furthermore, notches are provided at the four inner corners of the base, and the edges of the notches are provided with arc-shaped chamfers. The positions of the notches match the positions of the second bolts.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution features a clamping and fixing mechanism. During wiring, one end of the wire can be passed between the support block and the pressure block, and then fixedly connected to the wire connection point. At this point, the corresponding clamping knob can be rotated to move the pressure block downwards, effectively clamping and fixing the wire in conjunction with the support block. In subsequent work, because the wire is clamped and fixed by the pressure block and the support block, and the clamping force and clamping stability are both high (non-elastic force), relative sliding between the wire and the support block and the pressure block can be effectively avoided, thereby reducing the risk and probability of the wire falling off at the connection point. Furthermore, due to the V-groove design of the support block and the pressure block, it can be used for various wires of different diameters within a certain range, effectively improving its applicability. At the same time, the clamping force for different wire diameters is not affected by the wire diameter. It is only necessary to rotate the corresponding clamping knob according to the different wire diameters to move the pressure block downwards and cooperate with the support block to clamp and fix the wire. Overall, it has high practicality.

[0017] 2. This technical solution incorporates a buffer and shock absorption mechanism, allowing the mounting base to be installed and fixed at the target position using the second bolt during terminal installation. In subsequent operation, if vibration occurs, four damping rods and four springs effectively buffer and absorb the vibration, reducing its impact on the base, terminal body, support block, pressure block, and wires. This ensures the mounting base remains firmly in place and does not detach from the mounting carrier, preventing any disruption to the normal operation of the terminal body. This design offers high practicality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 An exploded view of the wiring terminal body of this utility model.

[0022] Figure 4 This is a schematic diagram of the exploded structure of the pressure block installation according to this utility model;

[0023] Figure 5 This is a bottom view of the protective cover structure of this utility model.

[0024] In the diagram: 1. Base; 2. Terminal block body; 3. Wire connection part; 4. Protective cover; 5. First bolt; 6. Wire hole; 7. Clamping and fixing mechanism; 701. Mounting bracket; 702. Support block; 703. Clamping knob; 704. Pressure block; 705. Anti-slip pad; 8. Buffer and shock absorption mechanism; 801. Mounting seat; 802. Mounting hole; 803. Second bolt; 804. Damping rod; 805. Spring; 9. Notch groove. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0028] Reference Figures 1-5 A terminal block mounting and fixing structure includes a base 1, a terminal block body 2 fixedly mounted on the top of the base 1, a plurality of wire connection parts 3 provided on the terminal block body 2, a protective cover 4 fixedly mounted on the top of the base 1, the protective cover 4 being fixedly connected to the threaded hole reserved on the base 1 by a first bolt 5, and wire through holes 6 matching the terminal block body 2 are provided around the protective cover 4.

[0029] The clamping and fixing mechanism 7 includes multiple mounting brackets 701, which are divided into two groups and fixedly installed on the top of the base 1. The two groups of mounting brackets 701 are located on the front and rear sides of the protective cover 4, respectively. The positions of the multiple mounting brackets 701 correspond to the positions of multiple wire holes 6. The mounting brackets 701 are inverted U-shapes. Two support blocks 702 are fixedly connected inside the mounting brackets 701. The support blocks 702 are close to the bottom of the mounting brackets 701, and there is a certain distance between the two support blocks 702. The top of the mounting brackets 701... A clamping knob 703 is threaded through the base 1. The bottom of the clamping knob 703 is rotatably connected to a pressure block 704 via a rotating connector. The two sides of the pressure block 704 are respectively attached to the inner sides of the mounting bracket 701. The pressure block 704 is located between two support blocks 702, and the longitudinal dimension of the pressure block 704 is smaller than the distance between the two support blocks 702. The height of the pressure block 704 is higher than that of the support blocks 702. V-shaped grooves are provided on the top of the support blocks 702 and the bottom of the pressure block 704. A buffer and shock absorption mechanism 8 is located at the bottom of the base 1.

[0030] Both the support block 702 and the pressure block 704 have arc-shaped chamfers at the edges of their V-grooves, and the wire hole 6 also has arc-shaped chamfers at its edges. Anti-slip pads 705 are attached and fixed to the inner walls of the V-grooves of both the support block 702 and the pressure block 704. The anti-slip pads 705 are made of rubber. The bottom height of the support block 702 is flush with the bottom height of the mounting bracket 701, and both sides of the pressure block 704 are smooth surfaces.

[0031] In the specific implementation process, when wiring, the protective cover 4 can be removed first. Then, one end of the wire is passed between the support block 702 and the pressure block 704, and placed in the V-groove at the top of the two support blocks 702. Then, it is fixedly connected to the wire connection part. At this time, the corresponding clamping knob 703 can be rotated to move the pressure block 704 down until the inner wall of the V-groove at the bottom of the pressure block 704 abuts against the outer wall of the wire. Then, the anti-slip pad 705 can be applied to effectively clamp and fix the wire. After all the wires are connected and clamped and fixed in sequence, the protective cover 4 can be reset and fixed. In subsequent work, because the wire is clamped by the pressure block 704 and the support block 702, The clamping force and stability are both high (non-elastic force), which can effectively prevent relative sliding between the wire and the support block 702 and the pressure block 704, thereby reducing the risk and probability of the wire falling off at the connection point of the wire connection part 3. In addition, due to the V-groove design of the support block 702 and the pressure block 704, it can be used for a variety of wires of different diameters within a certain range, which effectively improves its applicability. At the same time, the clamping force for wires of different diameters is not affected by the wire diameter. It is only necessary to rotate the corresponding clamping knob 703 according to the different wire diameters to drive the pressure block 704 to move down and cooperate with the support block 702 to clamp and fix the wire.

[0032] Among them, the edges of the V-groove of the support block 702 and the pressure block 704 are provided with arc chamfers, and the edges of the wire hole 6 are also provided with arc chamfers, all to avoid scratching and damaging the wires;

[0033] The anti-slip pad 705 is designed to increase the contact friction between the support block 702 and the pressure block 704 and the wire, thereby improving the clamping and fixing effect on the wire.

[0034] The bottom height of the support block 702 is flush with the bottom height of the mounting bracket 701 so that the bottom of the support block 702 can contact the top of the base 1, thereby improving the support stability of the base 1. The two sides of the pressure block 704 are smooth to reduce the friction between the pressure block 704 and the mounting bracket 701, making it easier for the pressure block 704 to move up and down and reducing wear.

[0035] The rotating connecting component is a deep groove ball bearing. The inner ring of the deep groove ball bearing is fixedly connected to the bottom end of the clamping knob 703 by an interference fit, and the outer ring of the deep groove ball bearing is fixedly connected to the top center position of the pressure block 704 by welding. Specific Implementation Example 2:

[0037] Reference Figure 1 and Figure 3 In a preferred embodiment, the buffer and shock absorption mechanism 8 includes a mounting base 801. The mounting base 801 has mounting holes 802 near its four inner corners. Second bolts 803 are movably inserted through the mounting holes 802. Four damping rods 804 are fixedly connected to the top of the mounting base 801. The top of the damping rods 804 is fixedly connected to the bottom of the base 1. The four damping rods 804 are respectively located near the four inner corners of the base 1. Springs 805 are sleeved on the outside of the damping rods 804. The two ends of the springs 805 are fixedly connected to the mounting base 801 and the base 1, respectively.

[0038] The base 1 has notches 9 at each of the four inner corners, and the edges of the notches 9 are chamfered. The position of the notches 9 matches the position of the second bolt 803.

[0039] In the specific implementation process, when installing the terminal block, the mounting base 801 can be installed and fixed at the target position with the second bolt 803. In the subsequent work process, if vibration occurs, the vibration can be effectively buffered and reduced by the four damping rods 804 and the four springs 805, reducing the impact of vibration on the base 1, terminal block body 2, support block 702, pressure block 704 and wires, without affecting the installation and fixation of the mounting base 801, ensuring that the mounting base 801 will not fall off from the mounting carrier and affect the normal operation of the terminal block body 2.

[0040] The notch 9 is designed to facilitate the tightening or disassembly of the second bolt 803 by the staff.

[0041] The damping rod 804 has a damping coefficient of 500 N·s / m, a length of 50 mm, and a diameter of 10 mm. The top of the damping rod 804 is fixedly connected to the bottom of the base 1 via an M8 bolt, and the bottom of the damping rod 804 is fixedly connected to the top of the mounting base 801 via an M8 bolt. The spring 805 has an elastic coefficient of 20 N / mm, a free length of 50 mm, and a wire diameter of 3 mm. The two ends of the spring 805 are fixedly connected to the top of the mounting base 801 and the bottom of the base 1 respectively by welding, and the spring 805 and the damping rod 804 are coaxially arranged.

[0042] The anti-slip pad 705 is 2mm thick and made of nitrile rubber. The anti-slip pad 705 is bonded and fixed to the inner wall of the V-groove of the support block 702 and the pressure block 704 with epoxy resin adhesive. The adhesive coating thickness is 0.5mm and the curing time is 24h.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A terminal mounting and securing structure comprising a base (1) characterised in that: The base (1) is fixedly installed with a terminal body (2) and a plurality of wire connection parts (3) are provided on the terminal body (2). The base (1) is fixedly installed with a protective cover (4). The protective cover (4) is fixedly connected to the threaded hole reserved on the base (1) by a first bolt (5). The protective cover (4) is provided with wire through holes (6) matching the terminal body (2) around its perimeter. The clamping and fixing mechanism (7) includes multiple mounting brackets (701). The multiple mounting brackets (701) are divided into two groups and are fixedly installed on the top of the base (1). The two groups of mounting brackets (701) are located on the front and rear sides of the protective cover (4), respectively. The positions of the multiple mounting brackets (701) are respectively matched with the positions of multiple wire holes (6). The mounting brackets (701) are inverted U-shapes. Two support blocks (702) are fixedly connected inside the mounting brackets (701). The support blocks (702) are close to the bottom of the mounting brackets (701), and there is a space between the two support blocks (702). With a certain spacing, the top of the mounting bracket (701) is provided with a clamping knob (703) through a screw connection. The bottom end of the clamping knob (703) is rotatably connected to a pressure block (704) through a rotating connector. The two sides of the pressure block (704) are respectively attached to the inner sides of the mounting bracket (701). The pressure block (704) is located between two support blocks (702), and the longitudinal dimension of the pressure block (704) is smaller than the spacing between the two support blocks (702). The height of the pressure block (704) is higher than that of the support blocks (702). The top of the support block (702) and the bottom of the pressure block (704) are both provided with V-shaped grooves. A buffer and shock absorption mechanism (8) is located at the bottom of the base (1).

2. The terminal mounting and securing structure of claim 1, wherein: The support block (702) and the pressure block (704) both have arc-shaped chamfers at the edges of their V-grooves, and the wire hole (6) also has arc-shaped chamfers at its edges.

3. The terminal mounting and securing structure of claim 1, wherein: The inner walls of the V-groove of the support block (702) and the pressure block (704) are both fitted with anti-slip pads (705), which are made of rubber material.

4. The terminal mounting and securing structure of claim 1, wherein: The bottom height of the support block (702) is flush with the bottom height of the mounting bracket (701), and both sides of the pressure block (704) are smooth surfaces.

5. The terminal mounting and securing structure of claim 1, wherein: The buffer and shock absorption mechanism (8) includes a mounting base (801), which has mounting holes (802) near its four inner corners. A second bolt (803) is movably inserted through the mounting holes (802). Four damping rods (804) are fixedly connected to the top of the mounting base (801). The top of the damping rods (804) is fixedly connected to the bottom of the base (1), and the four damping rods (804) are respectively near the four inner corners of the base (1). A spring (805) is sleeved on the outside of the damping rods (804). The two ends of the spring (805) are fixedly connected to the mounting base (801) and the base (1) respectively.

6. The terminal mounting and securing structure of claim 5, wherein: The base (1) has notches (9) at its four inner corners, and the edges of the notches (9) are provided with arc chamfers. The position of the notches (9) matches the position of the second bolt (803).

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