Adjustable crimping pliers

Abstract

The utility model provides an adjustable crimping plier, which belongs to the technical field of crimping plier, and comprises a plier head, an adjusting pressure plate is rotatably arranged on the plier head, an adjusting mechanism is arranged on the plier head, the adjusting mechanism comprises a limiting block and a switching structure, the limiting block is slidably arranged on the plier head along the radial direction of the adjusting pressure plate, and a limiting part is arranged on the limiting block. A limiting matching part is arranged on the adjusting pressure plate, and the limiting block is provided with a first position where the limiting part is matched with the limiting matching part to enable the adjusting pressure plate not to rotate and a second position where the limiting part is released from the limiting matching part to enable the adjusting pressure plate to freely rotate; the limiting block moves in the radial direction of the adjusting pressure plate, so that the adjusting pressure plate can be switched between a rotatable state and a non-rotatable state, the rotary connection of the adjusting pressure plate cannot be interfered, the machining precision requirement of related parts is reduced, and the problem that the adjusting pressure plate is loosened and unstable is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire crimping pliers, in particular to an adjustable wire crimping pliers. Background Art

[0002] Crimping pliers, also known as wire barging pliers, are a tool used to press crystal plugs. Common telephone line connectors and network cable connectors are pressed with wire barging pliers. Crimping pliers are used in different places and require different crimping port models, so someone designed an adjustable crimping pliers. When using the adjustable crimping pliers, the adjustable crimping plate is rotated and the appropriate crimping port is found for crimping. When using the crimping port, the adjustable crimping plate needs to be fixed so that it does not rotate, so as to facilitate the crimping work.

[0003] In the prior art, for example, a patent with publication number CN202268591U discloses an adjustable wire crimping pliers, in which the shaft is divided into two sections, rotatable and non-rotatable, and the center hole of the adjustable pressure plate is rotatably and non-rotatably matched with the shaft, so as to achieve a stable fixed adjustable pressure plate, and the adjustable pressure plate can be conveniently rotated and adjusted. However, the shaft used for limiting in this structure is arranged along the axial direction of the adjustable pressure plate, and high processing accuracy is required for the shaft and the matching center hole. At the same time, high accuracy is also required for the user to rotate the adjustable pressure plate, otherwise the shaft and the center hole cannot be accurately matched, or the adjustable pressure plate is prone to loosening and instability after adjustment. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide an adjustable wire crimping pliers.

[0005] The technical solution adopted by the utility model is as follows: the application provides an adjustable wire crimping pliers, including two pliers heads, an adjusting pressure plate is rotatably arranged on the pliers heads, and the adjusting pressure plate is provided with a plurality of pressure openings of different types along its circumference. The two adjusting pressure plates can face the pressure openings of the same type to form a jaw by rotating, and an adjustment mechanism is arranged on the pliers heads, and the adjustment mechanism includes a limit block and a switching structure, the limit block is slidably arranged on the pliers heads along the radial direction of the adjusting pressure plate, a limit portion is arranged on one end of the limit block facing the adjusting pressure plate, and a limit matching portion is arranged on the adjusting pressure plate corresponding to each pressure opening along its circumference, the limit block has a first position in which the limit portion and the limit matching portion form a match so that the adjusting pressure plate cannot rotate, and a second position in which the limit portion and the limit matching portion are released from the match so that the adjusting pressure plate can rotate freely, and the switching structure is used to switch the limit block between the first position and the second position.

[0006] In some embodiments, the switching structure includes an elastic member. When no force is applied to the limit block, under the action of the elastic member, the limit block is in a first position. When force is applied to the limit block, the limit block switches to a second position and compresses the elastic member. After the force is released, under the action of the elastic member, the limit block returns to the first position.

[0007] In some embodiments, the limit fitting portion is a positioning angle set corresponding to the pressure port, the limit portion is a positioning groove adapted to the positioning angle, and the positioning angle and the positioning groove both include two inclined surfaces with opposite slopes; when the limit block is in the first position, the positioning angle is embedded in the positioning groove, and when the limit block is in the second position, the positioning angle exits the positioning groove.

[0008] In some embodiments, the pliers head includes two tooth plates arranged at intervals, the adjusting pressure plate is rotatably arranged between the two tooth plates, a first sliding hole is arranged on the tooth plate facing the adjusting pressure plate, and the limit block includes a sliding portion extending into the first sliding hole.

[0009] In some embodiments, the limiting block includes two sliding parts and extends into two first sliding holes respectively.

[0010] In some embodiments, one end of the sliding portion extends out of the first sliding hole and is provided with an operating end, and a pressing surface is provided on the operating end, and the pressing surface is inclined toward a side tooth plate of the adjusting pressure plate.

[0011] In some embodiments, the adjustment mechanism includes a positioning pin shaft, the tooth plate is provided with a mounting hole matching the positioning pin shaft, the limit block is provided with a second sliding hole, the positioning pin shaft passes through the second sliding hole and slides with it, and the elastic member is arranged between the side of the positioning pin shaft facing the adjustment pressure plate and the inner wall of the second sliding hole.

[0012] In some embodiments, a first elastic member positioning portion is provided on the side of the positioning pin shaft facing the adjusting pressure plate corresponding to the elastic member, and / or a second elastic member positioning portion is provided on the inner wall of the second sliding hole corresponding to the elastic member.

[0013] In some embodiments, the positioning pin shaft includes a first shaft portion and a second shaft portion arranged at both ends of the first shaft portion, the two ends of the first shaft portion are respectively abutted against two tooth plates, the second shaft portion is inserted into the mounting hole, and the length of the first shaft portion is greater than the thickness of the adjusting pressure plate.

[0014] In some embodiments, at least two abutment protrusions are provided on the limit block toward the two tooth plates, and the abutment protrusions abut against the tooth plates.

[0015] The beneficial effects of the utility model are as follows: the limit block in the utility model realizes the switching of the adjusting pressure plate between the rotatable and non-rotatable states by moving along the radial direction of the adjusting pressure plate, does not interfere with the rotating connection of the adjusting pressure plate, reduces the processing accuracy requirements of related parts, and avoids the problem of looseness and instability of the adjusting pressure plate. At the same time, each pressure port corresponds to a limit fitting part, so that the limit block's limiting of the adjusting pressure plate is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 It is a schematic diagram of the utility model;

[0018] Figure 2 It is a partial exploded view of the utility model;

[0019] Figure 3 It is a partial schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the limit block in the utility model;

[0021] Figure 5 It is a schematic diagram of adjusting the pressure plate in the utility model;

[0022] Figure 6 It is a schematic diagram of the positioning pin in the utility model. DETAILED DESCRIPTION

[0023] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0024] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0026] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0027] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0029] Embodiment 1:

[0030] like Figures 1 to 6 As shown, the present embodiment provides an adjustable wire crimping pliers, comprising two pliers heads 1, on which an adjustable pressure plate 2 is rotatably provided. In the present embodiment, the pliers head 1 comprises two tooth plates 10 which are spaced apart, i.e., arranged in parallel up and down, and the adjustable pressure plate 2 is rotatably provided between the two tooth plates 10, and a first sliding hole 100 is provided on the tooth plate 10 facing the adjustable pressure plate 2. A limit block 4 is slidably provided between the two tooth plates 10, and the limit block 4 comprises a sliding portion 41 extending into the first sliding hole 100. Preferably, the limit block 4 comprises two sliding portions 41 which extend into the two first sliding holes 100 respectively, thereby improving the stability of the limit block 41 when sliding.

[0031] The regulating platen 2 is provided with a plurality of pressure ports 20 of different types along its circumference, such as Figure 5As shown, six types of pressure ports 20 are arranged on the adjusting pressure plate 2. Two of the adjusting pressure plates 2 can be rotated to make the pressure ports 20 of the same type face each other to form a jaw 3. An adjusting mechanism is arranged on the clamp head 1. The adjusting mechanism includes a limit block 4 and a switching structure. The limit block 4 is slidably arranged on the clamp head 1 along the radial direction of the adjusting pressure plate 2. A limit portion 40 is arranged on the limit block 4 at one end facing the adjusting pressure plate 2. The adjusting pressure plate 2 is provided with a limit matching portion 21 along its circumference corresponding to each pressure port 20. The limit block 4 has a first position in which the limit portion 40 cooperates with the limit matching portion 21 so that the adjusting pressure plate 2 cannot rotate and a second position in which the limit portion 40 is released from the limit matching portion 21 so that the adjusting pressure plate 2 can rotate freely. The switching structure is used for the limit block 4 to be in the first position and the second position It should be understood that there are various structures of the limit portion 40 and the limit matching portion 21, such as a socket and a rod, a protrusion and a groove, etc. In the present embodiment, the limit matching portion 21 is a positioning angle 210 set corresponding to the pressure port 20, and the limit portion 40 is a positioning groove 400 adapted to the positioning angle 210, and the positioning angle 210 and the positioning groove 400 both include two inclined surfaces with opposite slopes; when the limit block 4 is in the first position, the positioning angle 210 is embedded in the positioning groove 400, and when the limit block 4 is in the second position, the positioning angle 210 exits the positioning groove 400. When this structure is used, when the adjusting pressure plate 2 is rotated for adjustment, it is only necessary to turn the positioning angle 210 into the specified positioning groove 400. Due to the design of the two inclined surfaces, the positioning angle 210 can be automatically corrected relative to the positioning groove 400.

[0032] Through the above-mentioned arrangement, the limit block 4 moves along the radial direction of the adjusting pressure plate 2 to realize the switching of the adjusting pressure plate 2 between the rotatable state and the non-rotatable state, without interfering with the rotating connection of the adjusting pressure plate 2, thereby reducing the processing accuracy requirements of related parts and avoiding the problem of looseness and instability of the adjusting pressure plate 2. At the same time, each pressure port 20 corresponds to a limit fitting portion 21, so that the limit block 4 limits the adjusting pressure plate 2 more stably and reliably.

[0033] It should be understood that there are many structures that can be adopted by the switching structure. For example, the switching structure can be implemented by an elastic member 5. Preferably, the elastic member 5 is a compression spring. When no force is applied to the limit block 4, under the action of the elastic member 5, the limit block 4 is in the first position. When force is applied to the limit block 4, the limit block 4 switches to the second position and compresses the elastic member 5. After the force is unloaded, under the action of the elastic member 5, the limit block 4 returns to the first position. For another example, the switching structure can also adopt a gear switching method so that the limit block 4 has two gears, corresponding to the first position and the second position respectively. Specifically, elastic arms can be provided on both sides of the limit block 4, and then a first slot and a second slot are provided on both sides of the moving direction of the limit block 4 corresponding to the first position and the second position respectively. By pushing the limit block 4 to move, when the elastic arm is clamped into the first slot, the limit block 4 is positioned in the first position, and when the elastic arm is clamped into the second slot, the limit block 4 is positioned in the second position. In this embodiment, the former is preferred, which has a simpler structure and a longer service life.

[0034] Furthermore, one end of the sliding portion 41 extends out of the first sliding hole 100 and is provided with an operating end 410. The user can manually apply force to the operating end 410 to move the limit block 4. A pressing surface 411 is provided on the operating end 410. The pressing surface 411 is inclined toward the direction of the tooth plate 10 on one side of the adjusting pressure plate 2, so that the user can use the thumb to push the pressing surface 411 to move the limit block 4 backward and allow the adjusting pressure plate 2 to rotate and adjust. The pressing surface 411 is provided with a plurality of convex strips, which are arranged perpendicular to the moving direction of the limit block 4, thereby increasing the resistance between the two when the thumb pushes the pressing surface 411.

[0035] Furthermore, the adjusting mechanism includes a positioning pin 6, the tooth plate 10 is provided with a mounting hole 11 adapted to the positioning pin 6, the limit block 4 is provided with a second sliding hole 42, the positioning pin 6 passes through the second sliding hole 42 and slides therewith, the elastic member 5 is arranged between the side of the positioning pin 6 facing the adjusting pressure plate 2 and the inner wall of the second sliding hole 42, wherein the positioning pin 6 can be integrated with one of the tooth plates 10, or the positioning pin 6 is an independent part, which is plugged into the mounting holes 11 on the upper and lower tooth plates 10. Secondly, the positioning pin 6 includes a first shaft portion 61 and a second shaft portion 62 arranged at both ends of the first shaft portion 61, the two ends of the first shaft portion 61 are respectively abutted against the two tooth plates 10, the second shaft portion 62 is inserted into the mounting hole 11, and the length of the first shaft portion 61 is greater than the thickness of the adjusting pressure plate 2, so that the adjusting pressure plate 2 is less subject to resistance when rotating, thereby realizing rapid adjustment of jaws 3 of different specifications.

[0036] Secondly, a first elastic member positioning portion 51 is provided on the side of the positioning pin shaft 6 facing the adjusting pressure plate 2 corresponding to the elastic member 5, and / or a second elastic member positioning portion is provided on the inner wall of the second sliding hole 42 corresponding to the elastic member 5. The positioning portion can be a hole or an axis. Preferably, the first elastic member positioning portion 51 is a hole adapted to the elastic member 5.

[0037] Furthermore, at least two abutment protrusions 43 are provided on the limit block 4 toward the two tooth plates 10. In the present embodiment, an abutment protrusion 43 is provided around each of the four sides of the limit block 4. The abutment protrusion 43 abuts against the tooth plates 10, thereby reducing the resistance encountered by the limit block 4 when it moves.

[0038] In summary, after reading this detailed disclosure, it will be apparent to those skilled in the art that the foregoing detailed disclosure may be presented only by way of example and may not be limiting. Although not explicitly stated herein, it will be appreciated by those skilled in the art that the present application requires various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0039] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0040] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. An adjustable crimping pliers, comprising two pliers heads (1), wherein an adjustable pressure plate (2) is rotatably provided on the pliers heads (1), wherein the adjustable pressure plate (2) is provided with a plurality of crimping ports (20) of different types along its circumference, and the two adjustable pressure plates (2) can be rotated to make the crimping ports (20) of the same type face each other to form a pliers (3), characterized in that: The pliers head (1) is provided with an adjustment mechanism, the adjustment mechanism comprising a limit block (4) and a switching structure, the limit block (4) is slidably arranged on the pliers head (1) along the radial direction of the adjustment pressure plate (2), a limit portion (40) is arranged on one end of the limit block (4) facing the adjustment pressure plate (2), and the adjustment pressure plate (2) is provided with a limit matching portion (21) corresponding to each pressure port (20) along its circumference, the limit block (4) has a first position in which the limit portion (40) and the limit matching portion (21) form a match so that the adjustment pressure plate (2) cannot rotate, and a second position in which the limit portion (40) and the limit matching portion (21) are released from the match so that the adjustment pressure plate (2) can rotate freely, and the switching structure is used to switch the limit block (4) between the first position and the second position.

2. The adjustable crimping pliers according to claim 1, characterized in that: The switching structure comprises an elastic member (5); when no force is applied to the limit block (4), under the action of the elastic member (5), the limit block (4) is in a first position; when force is applied to the limit block (4), the limit block (4) switches to a second position and compresses the elastic member (5); when the force is released, under the action of the elastic member (5), the limit block (4) returns to the first position.

3. The adjustable crimping pliers according to claim 2, characterized in that: The limiting matching portion (21) is a positioning angle (210) arranged corresponding to the pressure opening (20); the limiting portion (40) is a positioning groove (400) adapted to the positioning angle (210); the positioning angle (210) and the positioning groove (400) both include two inclined surfaces with opposite slopes; when the limiting block (4) is in the first position, the positioning angle (210) is embedded in the positioning groove (400); when the limiting block (4) is in the second position, the positioning angle (210) exits the positioning groove (400).

4. An adjustable crimping pliers according to claim 2 or 3, characterized in that: The pliers head (1) comprises two tooth plates (10) arranged at an interval, the adjusting pressure plate (2) is rotatably arranged between the two tooth plates (10), a first sliding hole (100) is arranged on the tooth plate (10) towards the adjusting pressure plate (2), and the limit block (4) comprises a sliding portion (41) extending into the first sliding hole (100).

5. The adjustable crimping pliers according to claim 4, characterized in that: The limit block (4) comprises two sliding parts (41) and extends into two first sliding holes (100) respectively.

6. The adjustable crimping pliers according to claim 5, characterized in that: One end of the sliding portion (41) extends out of the first sliding hole (100) and is provided with an operating end (410), and a pressing surface (411) is provided on the operating end (410), and the pressing surface (411) is inclined toward the direction of the tooth plate (10) on one side of the adjusting pressure plate (2).

7. The adjustable crimping pliers according to claim 4, characterized in that: The adjustment mechanism comprises a positioning pin shaft (6), a mounting hole (11) matched with the positioning pin shaft (6) is arranged on the tooth plate (10), a second sliding hole (42) is arranged on the limit block (4), the positioning pin shaft (6) passes through the second sliding hole (42) and slides with it, and the elastic member (5) is arranged between the side of the positioning pin shaft (6) facing the adjustment pressure plate (2) and the inner wall of the second sliding hole (42).

8. The adjustable crimping pliers according to claim 7, characterized in that: A first elastic member positioning portion (51) is provided on the side of the positioning pin shaft (6) facing the adjustment pressure plate (2) corresponding to the elastic member (5), and / or a second elastic member positioning portion is provided on the inner wall of the second sliding hole (42) corresponding to the elastic member (5).

9. The adjustable crimping pliers according to claim 7, characterized in that: The positioning pin shaft (6) comprises a first shaft portion (61) and a second shaft portion (62) arranged at both ends of the first shaft portion (61), the two ends of the first shaft portion (61) are respectively in contact with two tooth plates (10), the second shaft portion (62) is inserted into the mounting hole (11), and the length of the first shaft portion (61) is greater than the thickness of the adjusting pressure plate (2).

10. The adjustable crimping pliers according to claim 4, characterized in that: At least two abutment protrusions (43) are arranged on the limit block (4) towards the two tooth plates (10), and the abutment protrusions (43) abut against the tooth plates (10).

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