Crimping pliers for extruding U-shaped and circular wiring terminals

Abstract

The utility model provides a pair of crimping pliers for extruding U-shaped and circular wiring terminals. The crimping pliers comprise a pliers head, a connecting mechanism and a pressure handle which are sequentially connected together. Wherein the plier head comprises an extrusion mechanism, and an airtight extrusion cavity used for containing a to-be-pressed object is formed in the extrusion mechanism in a selective mode. The pressure handle is used for applying acting force, and the acting force drives the extrusion mechanism to move towards the extrusion cavity in the circumferential direction after being transmitted to the extrusion mechanism through the connecting mechanism so that the to-be-pressed object located in the closed extrusion cavity can be extruded. In this way, the extrusion cavity can be closed in a selected manner. Therefore, in the using process, the wire sleeve and the wire can be placed in the extrusion cavity after being connected, and therefore the problem that the working space for connecting the wire sleeve and the wire in the extrusion cavity is limited is solved.

Description

Technical Field

[0001] This utility model relates to the field of wire crimping pliers, and in particular to a wire crimping pliers for crimping U-shaped and round terminals. Background Technology

[0002] like Figure 1 , 2 As shown, in electrical maintenance work, it is often necessary to install U-shaped terminals 10 or circular terminals 20 at the ends of wires (not shown in the figure) so that the U-shaped terminals 10 or circular terminals 20 are connected to the power supply (not shown in the figure) or another wire (not shown in the figure) to form a current path.

[0003] The U-shaped terminal block 10 includes a U-shaped connector 101 for interconnection with a power source or another conductor, and a conductor sleeve 102 interconnected with the U-shaped connector 101, the conductor sleeve 102 being configured to accommodate a conductor. The circular terminal block 20 includes a circular connector 201 for interconnection with a power source or another conductor, and a conductor sleeve 102 interconnected with the circular connector 201, the conductor sleeve 102 being configured to accommodate a conductor.

[0004] In this way, the wire can be positioned inside the wire sleeve 102, and the wire sleeve 102 can be compressed by related equipment to fix the wire sleeve 102 and the wire together. This allows the wire to be connected to the U-shaped terminal block 10 or the circular terminal block 20 to meet wiring requirements.

[0005] In the prior art, the crimping space of common wire crimping pliers is interfered with by the U-shaped connector 101 and the circular connector 201. Therefore, the wire sleeve 102 can only be inserted into the crimping space of the wire crimping pliers, and a wire can be placed inside the wire sleeve 102. Then, the wire sleeve 102 is crimped by the wire crimping pliers to fix the wire sleeve 102 and the wire together.

[0006] While this method can achieve the operation of fixing the wire sleeve 102 and the wire together, it causes inconvenience because the wire sleeve 102 and the wire need to be placed in the compression space first. In particular, when the length of the wire is short, it further causes the problem of limited working space. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a crimping tool for crimping U-shaped and circular terminals. To achieve the above objective, this utility model adopts the following technical solution:

[0008] A crimping tool for crimping U-shaped and round terminals includes a plier head, a connecting mechanism, and a pressure handle connected in sequence.

[0009] The clamp head includes a compression mechanism, which is selectively configured to form a sealed compression cavity for accommodating the object to be compressed.

[0010] The pressure handle is used to apply force, and after the force is transmitted to the extrusion mechanism via the connecting mechanism, it drives the extrusion mechanism to move circumferentially toward the extrusion cavity to extrude the object to be extruded in the closed extrusion cavity.

[0011] Furthermore, the extrusion mechanism includes a first extrusion assembly and a second extrusion assembly rotatably connected to the first extrusion assembly. The first extrusion assembly and the second extrusion assembly are configured to form a sealed extrusion cavity together when they are in contact with each other.

[0012] Furthermore, the first extrusion assembly and the second extrusion assembly are rotatably connected to each other via a connecting shaft, and a snap-fit ​​mechanism is provided on the first extrusion assembly and the second extrusion assembly to fix the first extrusion assembly and the second extrusion assembly together.

[0013] Furthermore, the latching mechanism includes a latching portion disposed on the first pressing assembly and a latching groove located on the second pressing assembly, the latching portion being configured to selectively connect with the latching groove to form a relative fixation between the first pressing assembly and the second pressing assembly.

[0014] Furthermore, the snap-fit ​​portion includes a snap-fit ​​block that complements the shape of the snap-fit ​​groove, and a limiting block that is rotatably disposed on the first pressing assembly for selectively limiting the snap-fit ​​block.

[0015] Furthermore, the snap-fit ​​portion also includes a rotating shaft disposed on the first compression assembly, and the limiting block is configured to be rotatably connected to the rotating shaft for moving around the rotating shaft, thereby selectively limiting the snap-fit ​​block.

[0016] Furthermore, an anti-slip sleeve is provided on the pressure handle, and the anti-slip sleeve is made of any material that can improve friction.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention comprises a clamp head, a connecting mechanism, and a pressure handle connected sequentially. The clamp head includes a squeezing mechanism, which selectively forms a sealed squeezing cavity to accommodate the object to be squeezed. The pressure handle applies force, which, after being transmitted to the squeezing mechanism via the connecting mechanism, drives the squeezing mechanism to move circumferentially towards the squeezing cavity, thereby squeezing the object within the sealed cavity. This allows the squeezing cavity to be sealed selectively. Therefore, during use, after connecting the wire sheath and the wire, it can be placed inside the squeezing cavity, thus avoiding the problem of limited working space when connecting the wire sheath and the wire within the squeezing cavity. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is the overall structure of the U-shaped terminal block in the existing technology;

[0021] Figure 2 This is the overall structure of a circular terminal block in the existing technology;

[0022] Figure 3 This is a schematic diagram of the overall structure of the wire crimping pliers for crimping U-shaped and circular terminals in the open state according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the overall structure of the crimping pliers for crimping U-shaped and circular terminals in the closed state according to an embodiment of the present invention.

[0024] In the above figures: U-shaped terminal block 10, U-shaped connector 101, wire sleeve 102, circular terminal block 20, circular connector 201, crimping pliers 100 for crimping U-shaped and circular terminals, pliers head 1, crimping mechanism 11, first crimping assembly 111, second crimping assembly 112, connecting shaft 113, crimping cavity 12, connecting mechanism 2, pressure handle 3, anti-slip sleeve 31, snap-fit ​​mechanism 4, snap-fit ​​part 41, snap-fit ​​block 411, snap-fit ​​surface 4111, connecting surface 4112, limiting block 412, rotating shaft 413, snap-fit ​​groove 42. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0026] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed description of a crimping tool for crimping U-shaped and circular terminals.

[0027] like Figure 1 ,2 As shown, in electrical maintenance work, it is often necessary to install U-shaped terminals 10 or circular terminals 20 at the ends of wires (not shown in the figure) so that the U-shaped terminals 10 or circular terminals 20 are connected to the power supply (not shown in the figure) or another wire (not shown in the figure) to form a current path.

[0028] Among them, such as Figure 1 As shown, the U-shaped terminal block 10 includes a U-shaped connector 101 for interconnection with a power source or another conductor, and a conductor sleeve 102 interconnected with the U-shaped connector 101, the conductor sleeve 102 being configured to allow for the reception of a conductor.

[0029] And such Figure 2 As shown, the circular terminal 20 includes a circular connector 201 for interconnection with a power source or another wire, and a wire sleeve 102 interconnected with the circular connector 201, the wire sleeve 102 being configured to accommodate a wire. It should be noted that the U-shaped connector 101, the circular connector 201, and the wire sleeve 102 are all made of conductive material, and the connection methods between the U-shaped terminal 10, the circular terminal 20, and the wire are well known to those skilled in the art.

[0030] Figure 3 The schematic diagram shows the overall structure of a crimping pliers 100 for crimping U-shaped and round terminals according to the present invention. Figure 1 In the embodiment shown, the crimping pliers 100 for crimping U-shaped and round terminals include a plier head 1, a connecting mechanism 2, and a pressure handle 3 connected together in sequence.

[0031] Among them, such as Figure 3 As shown, the clamp head 1 includes a squeezing mechanism 11, which is selectively formed with a sealed squeezing cavity 12 for accommodating the object to be squeezed. In this embodiment, the pressure handle 3 is used to receive the force, and after the force is transmitted to the squeezing mechanism 11 via the connecting mechanism 2, it drives the squeezing mechanism 11 to move circumferentially toward the squeezing cavity 12 to squeeze the object to be squeezed within the sealed squeezing cavity 12.

[0032] In this configuration, when the device 100 is needed to press the U-shaped terminal 10 and the circular terminal 20 together to fix them relative to the wire (not shown in the figure), first open the pressing cavity 12 and then insert the wire sleeve 102 with the wire threaded through it into the pressing cavity 12.

[0033] Then, a force is applied to the pressure handle 3. During this process, the force on the pressure handle 3 is transmitted along the connecting mechanism 2 to the extrusion mechanism 11, thereby driving the extrusion mechanism 11 to move continuously toward the extrusion cavity 12 in the circumferential direction. At this time, the extrusion mechanism 11, which is continuously moving toward the extrusion cavity 12, will continuously apply a force to the wire sleeve 102, which is located in the extrusion cavity 12 and through which the wire is threaded.

[0034] During this process, the wire sleeve 102 will continuously deform, thus tightly fitting together with the wire located inside the wire sleeve 102. This allows the wire sleeve 102 and the wire to be relatively fixed together. In this way, after the wire sleeve 102 and the wire are connected, they can be placed inside the extrusion cavity 12 during use, thus avoiding the problem of limited working space when connecting the wire sleeve 102 and the wire within the extrusion cavity 12.

[0035] It should be noted that the structure that enables the extrusion mechanism 11 to move continuously toward the extrusion cavity 12 in the circumferential direction, the structure of the connecting mechanism 2, the structure of the pressure handle 3, the force transmission relationship of the extrusion mechanism 11 moving continuously toward the extrusion cavity 12 in the circumferential direction, and the force transmission relationship between the connecting mechanism 2 and the pressure handle 3 are all well known to those skilled in the art.

[0036] In one embodiment, such as Figure 3 As shown, the extrusion mechanism 11 includes a first extrusion assembly 111 and a second extrusion assembly 112 that is rotatably connected to the first extrusion assembly 111. The first extrusion assembly 111 and the second extrusion assembly 112 are configured to form a sealed extrusion cavity 12 together when they are in contact with each other.

[0037] In this way, when the extrusion cavity 12 is open, the wire sleeve 102 can be placed inside the extrusion cavity 12. When the extrusion cavity 12 is closed, a force can be applied to the wire sleeve 102, thereby fixing the wire sleeve 102 and the wire together. With this arrangement, the wire sleeve 102 can be placed inside the extrusion cavity 12 after being connected to the wire, thus avoiding the problem of limited working space when connecting the wire sleeve 102 and the wire inside the extrusion cavity 12.

[0038] In one embodiment, such as Figure 3As shown, the first extrusion assembly 111 and the second extrusion assembly 112 are rotatably connected to each other via a connecting shaft 113, and a latching mechanism 4 is provided on the first extrusion assembly 111 and the second extrusion assembly 112 to fix them relatively together. In this way, the second extrusion assembly 112 can rotate around the connecting shaft 113, so that the first extrusion assembly 111 and the second extrusion assembly 112 can selectively form the extrusion cavity 12 together.

[0039] At the same time, such as Figure 3 As shown, after the first extrusion assembly 111 and the second extrusion assembly 112 together form the extrusion cavity 12, the first extrusion assembly 111 and the second extrusion assembly 112 can be fixed together relatively by the snap-fit ​​mechanism 4. Thus, the first extrusion assembly 111 and the second extrusion assembly 112 can be stably connected together, thereby ensuring that the extrusion cavity 12 formed by the first extrusion assembly 111 and the second extrusion assembly 112 can stably accommodate the wire sleeve 102.

[0040] In one embodiment, such as Figure 4 As shown, the latching mechanism 4 includes a latching portion 41 disposed on the first pressing assembly 111 and a latching groove 42 located on the second pressing assembly 112. In this embodiment, the latching portion 41 is configured to connect with the latching groove 42 in a selectable manner to form a relatively fixed relationship between the first pressing assembly 111 and the second pressing assembly 112.

[0041] In this configuration, when the snap-fit ​​part 41 and the snap-fit ​​groove 42 engage with each other, the first compression component 111 and the second compression component 112 can be fixed together. When the snap-fit ​​part 41 and the snap-fit ​​groove 42 disengage, the first compression component 111 and the second compression component 112 can disengage from each other, thereby opening the compression cavity 12 and forming a space for placing the wire sleeve 102.

[0042] In one embodiment, such as Figure 4 As shown, the snap-fit ​​portion 41 includes a snap-fit ​​block 411 whose shape is complementary to that of the snap-fit ​​groove 42, and a limiting block 412 which is rotatably disposed on the first pressing assembly 111 for selectively limiting the snap-fit ​​block 411.

[0043] In this way, when the snap-fit ​​block 411 is placed in the snap-fit ​​groove 42 and is limited by the limiting block 412, the snap-fit ​​block 411 can be stably limited in the snap-fit ​​groove 42, thereby enabling the snap-fit ​​block 411 to stably connect the first extrusion component 111 and the second extrusion component 112 together.

[0044] In the illustrated embodiment, such as Figure 4 As shown, the snap-fit ​​part 41 further includes a rotating shaft 413 disposed on the first pressing assembly 111. The limiting block 412 is configured to be rotatably connected to the rotating shaft 413 for moving around the rotating shaft 413, thereby selectively limiting the snap-fit ​​block 411.

[0045] In this way, the limiting block 412 can limit or release the locking block 411 during its rotation around the rotating shaft 413. When the locking part 41 limits the locking block 411, it ensures that the locking block 411 stably connects the first pressing component 111 and the second pressing component 112 together. However, when the locking part 41 releases the limiting effect on the locking block 411, the first pressing component 111 and the second pressing component 112 disengage, thereby opening the pressing cavity 12 and creating a space for placing the wire sleeve 102.

[0046] According to a preferred embodiment of the present invention, such as Figure 4 As shown, the latching block 411 includes a latching surface 4111 and a connecting surface 4112 connected to the latching surface 4111. In the illustrated embodiment, the surface area of ​​the latching surface 4111 is set to be larger than that of the connecting surface 4112, and the connecting surface 4112 is also rotatably connected to the limiting block 412.

[0047] At the same time, such as Figure 4 As shown, in this embodiment, the shape of the snap-fit ​​surface 4111 is complementary to the shape of the snap-fit ​​groove 42. In this way, the snap-fit ​​surface 4111 can be fitted into the snap-fit ​​groove 42. Thus, the second pressing component 112 can be further limited.

[0048] According to a preferred embodiment of the present invention, such as Figure 3 , 4 As shown, an anti-slip sleeve 31 is also provided on the pressure handle 3. The anti-slip sleeve 31 is made of any material that can increase friction. In this way, when the operator holds the pressure handle 3 and applies force to it, the anti-slip sleeve 31 increases the friction between the pressure handle 3 and the operator. This facilitates the application of force by the operator.

[0049] The operation of the crimping pliers 100 for crimping U-shaped and circular terminals according to this utility model is as follows.

[0050] In this configuration, when the device 100 is used to press the U-shaped terminal 10 and the circular terminal 20 together, so that the U-shaped terminal 10 and the circular terminal 20 are fixed together with the wire (not shown in the figure).

[0051] First, a force is applied to the limiting block 412, causing it to rotate around the rotating shaft 413, and during this rotation, it releases its restriction on the locking block 411. During this process, the locking block 411 disengages from the locking groove 42, thus releasing its restriction on the second pressing assembly 112. This allows the first pressing assembly 111 and the second pressing assembly 112 to disengage from each other.

[0052] At this time, the second extrusion assembly 112 is rotated around the connecting shaft 113, thereby opening the extrusion cavity 12 formed by the first extrusion assembly 111 and the second extrusion assembly 112. Simultaneously, the wire sleeve 102 with the wire threaded through it is placed into the extrusion cavity 12.

[0053] Then, a force is applied to the pressure handle 3. During this process, the force on the pressure handle 3 is transmitted along the connecting mechanism 2 to the first extrusion assembly 111 and the second extrusion assembly 112, thereby driving the first extrusion assembly 111 and the second extrusion assembly 112 to move continuously toward the extrusion cavity 12 in the circumferential direction. At this time, the first extrusion assembly 111 and the second extrusion assembly 112, which are continuously moving toward the extrusion cavity 12, will continuously apply a force to the wire sleeve 102, which is located inside the extrusion cavity 12 and through which the wire is threaded.

[0054] During this process, the conductor sleeve 102 will continuously deform, thus tightly fitting together with the conductor located inside the conductor sleeve 102. This allows the conductor sleeve 102 and the conductor to be relatively fixed together.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wire crimper for crimping U-shaped and round terminals, characterized by comprising: The plier head (1), the connecting mechanism (2) and the pressure handle (3) are connected together in sequence, The plier head (1) comprises a pressing mechanism (11) which is selectively formed with a closed pressing cavity (12) for containing the object to be pressed, The pressure handle (3) is used for applying force, and after the force is transmitted to the pressing mechanism (11) through the connecting mechanism (2), the pressing mechanism (11) is driven to move along the circumference towards the pressing cavity (12) to press the object to be pressed in the closed pressing cavity (12).

2. The crimping pliers for crimping a U-shaped and a round terminal according to claim 1, wherein The pressing mechanism (11) comprises a first pressing assembly (111) and a second pressing assembly (112) rotatably connected with the first pressing assembly (111), and the first pressing assembly (111) and the second pressing assembly (112) are configured to jointly form the closed pressing cavity (12) when they are in close contact with each other.

3. The crimping pliers for crimping a U-shaped and a round terminal according to claim 2, wherein The first pressing assembly (111) and the second pressing assembly (112) are rotatably connected with each other through a connecting shaft (113), and a buckle mechanism (4) is arranged on the first pressing assembly (111) and the second pressing assembly (112) to relatively fix the first pressing assembly (111) and the second pressing assembly (112) together.

4. The crimping pliers for crimping a U-shaped and a round terminal according to claim 3, wherein The buckle mechanism (4) comprises a clamping portion (41) arranged on the first pressing assembly (111) and a clamping groove (42) arranged on the second pressing assembly (112), and the clamping portion (41) is configured to selectively connect with the clamping groove (42) to form relative fixation between the first pressing assembly (111) and the second pressing assembly (112).

5. The crimping pliers for crimping a U-shaped and a round terminal according to claim 4, wherein The clamping portion (41) comprises a clamping block (411) which is complementary in shape to the clamping groove (42), and a limiting block (412) rotatably arranged on the first pressing assembly (111) for selectively limiting the clamping block (411).

6. The crimping pliers for crimping a U-shaped and a round terminal according to claim 5, wherein The clamping portion (41) further comprises a rotating shaft (413) arranged on the first pressing assembly (111), and the limiting block (412) is rotatably connected with the rotating shaft (413) to move around the rotating shaft (413) to selectively limit the clamping block (411).

7. The crimping pliers for crimping a U-shaped and a round terminal according to claim 1, wherein A non-slip sleeve (31) is further arranged on the pressure handle (3), and the non-slip sleeve (31) is made of any material capable of improving friction.

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