Crimpzange

Abstract

Crimping pliers, with a support frame (1) having a base (11) and several clamping units (2), wherein the several clamping units (2) are arranged in a straight direction on the base (11), each clamping unit (2) containing two clamping elements (21), the two clamping elements (21) being arranged on the base (11) and being movable between a first state and a second state, each clamping element (21) having a clamping section (22); and a crimp module (4) connected to a clamping unit (2) and comprising two crimp dies (41), each crimp die (41) having a first connection section (42) and a second connection section (43); wherein, when the two clamping elements (21) clamp the two crimping dies (41), the clamping sections (22) of the two clamping elements (21) are connected to the first connecting elements (42) of the two crimping dies (41), the two clamping elements (21) being in the first state, and when the two clamping parts (21) do not clamp the two crimping dies (41), the two clamping elements (21) being in the second state.

Description

Technical area

[0001] The invention relates to a hand tool, in particular a crimping tool. State of the art

[0002] Crimping pliers are specialized tools for crimping conductors and connectors. They are widely used in the electronics, electrical, and communications industries. Crimping pliers typically consist of a handle, a pliers head, and a crimping die. The handle opens and closes the pliers head. The crimping die is located on the pliers head and has a specific shape depending on the connector to be crimped.

[0003] The crimping die of the crimping pliers is positioned by a pin on the pliers head. Replacing the die is cumbersome, as the pin must be pulled out to replace the die. Replacing the crimping die is not simple, convenient, or quick enough. Therefore, it is necessary to provide a novel and advanced crimping pliers to solve the above-mentioned problems. Object of the invention

[0004] The object of the invention is to provide a crimping tool, wherein the crimping module can be quickly and easily moved between the support frame and the tool body as required.

[0005] This object is achieved by the crimping pliers of the invention, comprising: a support frame having a base and a plurality of clamping units, the plurality of clamping units being arranged in a straight direction on the base, each clamping unit including two clamping elements, the two clamping elements being arranged on the base and being movable between a first state and a second state, each clamping element having a clamping portion; and a crimping module connected to a clamping unit and including two crimping dies, each crimping die having a first connecting portion and a second connecting portion;wherein, when the two clamping elements clamp the two crimping dies, the clamping portions of the two clamping elements are connected to the first connecting elements of the two crimping dies, the two clamping elements being in the first state, and when the two clamping parts do not clamp the two crimping dies, the two clamping elements being in the second state; Short description of the drawings Fig. 1 a perspective view of the invention, Fig. 2 a representation of the connection of the pliers body and the support frame, Fig. 3 a sectional view of the invention, wherein the fitting projections of the actuating elements fit into the fitting recesses of the handle, Fig. 4 a partial sectional view of the invention, wherein the pliers body is not connected to the crimping module, Fig. 5 a partial sectional view of the invention, wherein the blocking element in Fig. 4 moves into the blocking position, Fig. 6 to Fig. 8 representations of the invention, wherein the crimping module connected to the clamping unit is inserted into the pliers body, Fig. 9 a representation of the invention, wherein the crimping module is returned from the pliers body into the clamping unit. Ways to implement the invention

[0006] As in Fig. 1 to 9, the crimping pliers of the invention comprise: a support frame 1, a pliers body 3 and a crimping module 4.

[0007] The support frame 1 has a base 11 and a plurality of clamping units 2. The plurality of clamping units 2 are arranged in a straight direction on the base 11 to facilitate operation and viewing and to take up less space. Each clamping unit 2 contains two clamping elements 21. The two clamping elements 21 are arranged on the base 11 and are movable between a first state and a second state. Each clamping element 21 has a clamping portion 22.

[0008] The pliers body 3 has two handles 31, two working heads 33, and two positioning elements 34. The two handles 31 are movably connected to each other. The two working heads 33 are provided on the two handles 31 and can be opened and closed relative to each other. The two positioning elements 34 are arranged on the two working heads 33 and are movable between a locked state and an unlocked state. Each positioning element 34 has a positioning section 35.

[0009] The crimping module 4 is removably connected to the clamping unit 2 or the pliers body 3. The crimping module 4 includes two crimping dies 41. Each crimping die 41 has a first connecting portion 42 and a second connecting portion 43. The first connecting portion 42 can selectively engage with the clamping portion 22. The second connecting portion 43 can selectively be hooked with the positioning portion 35. The pliers body 3 can be connected to the crimping module 4. When the two clamping elements 21 clamp the two crimping dies 41, the clamping portions 22 of the two clamping elements 21 are connected to the first connecting elements 42 of the two crimping dies 41. The two clamping elements 21 are in the first state. When the two clamping parts 21 do not clamp the two crimping dies 41, the two clamping elements 21 are in the second state.When the two positioning elements 34 clamp the two crimping dies 41, the positioning sections 35 of the two positioning elements 34 are connected to the second connecting elements 43 of the two crimping dies 41. The two positioning elements 34 are in the locked state. When the two positioning elements 34 are not clamping the two crimping dies 41, the two positioning elements 34 are in the unlocked state.

[0010] The number of crimping modules 4 is a plurality. The plurality of crimping modules 4 are provided in the plurality of clamping units 2. The plurality of crimping modules 4 preferably have different shapes.

[0011] When the crimping module 4 is to be transferred from the support frame 1 to the pliers body 3, the two positioning elements 34 in the release state can be inserted between the two clamping elements 21 in the first state, whereby the clamping portions 22 of the two clamping elements 21 are separated from the first connecting portions 42 of the two crimping dies 41, so that the crimping module 4 is released. At this time, the two positioning elements 34 can move into the locking state to connect with the crimping module 4, so that the crimping module 4 can be pulled away from the two clamping elements 21.

[0012] When transferring the crimping module 4 from the pliers body 3 to the support frame 1, the two clamping elements 21 in the second state can be inserted in the opposite direction between the two positioning elements 34 in the locked state, whereby the positioning sections 35 of the two positioning elements 34 are separated from the second connecting sections 43 of the two crimping dies 41, so that the crimping module 4 is released. The two clamping elements 21 can move into the first state for connection to the crimping module 4, so that the crimping module 4 can be pulled away from the two positioning elements 34.

[0013] The clamping unit 2 further includes a first elastic element 24. The first elastic element 24 is located between the two clamping elements 21 so that the clamping sections 22 of the two clamping elements 21 tend to move towards each other in the normal state. When the crimping module 4 is inserted between the two clamping elements 21, it can be automatically clamped and positioned. The pliers body 3 also has a second elastic element 36. The second elastic element 36 is located between the two positioning elements 34 so that the positioning sections 35 of the two positioning elements 34 tend to move towards each other in the normal state. When the crimping module 4 is inserted between the two positioning elements 34, it can be automatically clamped and positioned. When the pliers body 3 or the clamping unit 2 releases the crimping module 4, the other automatically clamps the crimping module 4.To transfer the crimping module 4, the user simply needs to hold the pliers body 3 and insert it into the clamping unit 2. When transferring the crimping module 4 from the support frame 1 to the pliers body 3, the same action is performed, causing the crimping module 4 to be transferred again, for example, from the pliers body 3 to the support frame 1.

[0014] The clamping elements 21 can be rotatably arranged on the base 11. The positioning elements 34 can be rotatably arranged on the working heads 33. When the crimping module 4 is located on the base 1, the two clamping elements 21 and the two crimping dies 41 form two first insertion gaps 51. Each clamping element 21 forms a first insertion gap 51 with a crimping die 41. The two positioning elements 34 and two insertion sections 333 of the two working heads 33 form two second insertion gaps 52. Each positioning element 34 forms a second insertion gap 52 with an insertion section 333 of the working head 33. When the crimping module 4 is to be transferred from the support frame 1 to the pliers body 3, the two positioning elements 34, in the unlocked state, are inserted into the two first insertion gaps 51. The crimping dies 41 are inserted in the opposite direction between the two second insertion gaps 52.During the transfer, the two crimping dies 41 push the two positioning elements 34 away from each other vertically to the insertion direction to indirectly move the two clamping elements 21 until the clamping portions 22 of the two clamping elements 21 are separated from the first connecting portions 42 of the two crimping dies 41 and the positioning portions 35 of the two positioning elements 34 are connected to the second connecting portions 43 of the two crimping dies 41.

[0015] When the crimping module 4 is located on the pliers body 3, the two clamping elements 21 form a clamping opening 23. The two positioning elements 34 and the two crimping dies 41 form two third insertion gaps 53. Each positioning element 34 forms a third insertion gap 53 with a crimping die 41. When the crimping module 4 is to be transferred from the pliers body 3 to the support frame 1, the two clamping elements 21 in the second state can be inserted between the two third insertion gaps 53. At the same time, the two crimping dies 41 partially enter the clamping opening 23.The two clamping elements 21 press the two positioning elements 34 away from each other until the positioning sections 35 of the two positioning elements 34 are separated from the second connecting sections 43 of the two crimping dies 41 and the clamping sections 22 of the two clamping elements 21 are connected to the first connecting sections 42 of the two crimping dies 41.

[0016] The clamping unit 2 also contains two release elements 25. The two release elements 25 are movably provided on the base 11 and are located at opposite ends of the clamping sections 22 of the two clamping elements 21. The two release elements 25 are actuated from the outside and can move the clamping sections 22 of the two clamping elements 21 away from each other in a targeted manner.

[0017] Each crimping die 41 has a sliding portion 44. Each working head 33 has a sliding groove 331 and a base body 332. The sliding groove 331 extends within the base body 332. The sliding portion 44 can slide along the sliding groove 331. The pliers body 3 also has an alignment mechanism 37. The alignment mechanism 37 includes a blocking element 38 and a stop element 39. The blocking element 38 is arranged on the base body 332 of one working head 33 and can move to a blocking position. The stop element 39 is provided on the base body 332 of the other working head 33. The blocking element 38 and the stop element 39 move together with the two working heads 33. When the blocking element 38 moves to the blocking position, the blocking element 38 is located on the movement path of the stop portion 39.The blocking element 38 and the stop portion 39 can engage with each other in a predetermined position, so that the positions of the sliding grooves 331 of the two working heads 33 coincide with the positions of the sliding portions 44 of the two crimping dies 41. This allows the crimping module 4 to be easily moved.

[0018] The blocking element 38 has a recess 381 on the side facing the stop portion 39. The stop element 39 has a projection 391 on the side facing the blocking element 38. When the blocking element 38 moves into the blocking position, the recess 381 is located on the path of movement of the projection 391. When the stop element 39 then pivots into a predetermined position, the projection 391 engages the recess 381.

[0019] The support frame 1 also has a mounting section 12. A handle 31 is removably inserted into the mounting section 12 so that the pliers body 3 is positioned on the support frame 1.

[0020] One of the two handles 31 is provided with at least one fitting recess 311. The support frame 1 further comprises at least one actuating element 13. The central portion of the at least one actuating element 13 is positioned on the mounting portion 12. The two opposite ends of the at least one actuating element 13 are free ends and can move relative to the mounting portion 12 like a rocker. One end of the at least one actuating element 13 is provided with a fitting projection 14, and the other end can be pressed from the outside. The fitting projection 14 of the at least one actuating element 13 can protrude into the interior of the mounting portion 12 to fit into the at least one fitting recess 311, thereby increasing the stability of the connection between the pliers body 3 and the support frame 1. The number of at least one actuating element 13 is two. The two actuating elements 13 are integrally formed on the base 11.

[0021] The crimping pliers also include a suspension element 6 connected to the support frame 1 and can be hung on the user's belt or tool belt. This allows the user's two hands to be kept free for other tasks. The support frame 1 also includes a metal block 15. The metal block 15 is provided on the base 11. The suspension element 6 is provided on the metal block 15. The metal block 15 has a stronger structure. The metal block 15 is located on the opposite side of the opening of the mounting section 12. List of reference symbols 1 supporting frame 11 Base 12 Assembly section 13 Actuating element 14 pass advantage 15 metal block 2 clamping unit 21 clamping element 22 clamping section 23 clamp opening 24 first elastic element 25 release element 3 pliers bodies 31 handle 311 fitting recess 33 Working head 331 sliding groove 332 basic bodies 333 Introductory section 34 Positioning element 35 Positioning section 36 second elastic element 37 Alignment mechanism 38 Blocking element 381 recess 39: Stop element 391 lead 4 Crimping module 41 Crimping die 42 first connecting section 43 second connecting section 44 sliding section 51 first insertion gap 52 second insertion gap 53 third empathy gap 6 Suspension element

Claims

[1] Crimping pliers, with a support frame (1) having a base (11) and a plurality of clamping units (2), wherein the plurality of clamping units (2) are arranged in a straight direction on the base (11), wherein each clamping unit (2) includes two clamping elements (21), wherein the two clamping elements (21) are arranged on the base (11) and are movable between a first state and a second state, wherein each clamping element (21) has a clamping portion (22); and a crimping module (4) connected to a clamping unit (2) and including two crimping dies (41), each crimping die (41) having a first connecting portion (42) and a second connecting portion (43); wherein, when the two clamping elements (21) clamp the two crimping dies (41), the clamping sections (22) of the two clamping elements (21) are connected to the first connecting elements (42) of the two crimping dies (41), the two clamping elements (21) being in the first state, and when the two clamping parts (21) do not clamp the two crimping dies (41), the two clamping elements (21) being in the second state. [2] Crimping pliers according to claim 1, characterized bya pliers body, wherein the crimping module (4) is removably connected to the clamping unit (2) or the pliers body (3), wherein the pliers body (3) has two handles (31), two working heads (33), and two positioning elements (34), wherein the two handles (31) are movably connected to one another, wherein the two working heads (33) are provided on the two handles (31) and can be opened and closed relative to one another, wherein the two positioning elements (34) are arranged on the two working heads (33) and are movable between a locking state and an unlocking state, wherein each positioning element (34) has a positioning section (35), wherein the pliers body (3) can be connected to the crimping module (4), wherein when the two positioning elements (34) clamp the two crimping dies (41),the positioning sections (35) of the two positioning elements (34) are connected to the second connecting elements (43) of the two crimping dies (41), wherein the two positioning elements (34) are in the locked state, and when the two positioning elements (34) do not clamp the two crimping dies (41), the two positioning elements (34) are in the unlocked state. [3] Crimping pliers according to claim 1, characterized by that the clamping unit (2) further includes a first elastic element (24), wherein the first elastic element (24) is located between the two clamping elements (21) so that the clamping sections (22) of the two clamping elements (21) tend to move towards each other in the normal state. [4] Crimping pliers according to claim 2, characterized byin that the pliers body (3) further comprises a second elastic element (36), the second elastic element (36) being located between the two positioning elements (34) so ​​that the positioning sections (35) of the two positioning elements (34) tend to move towards each other in the normal state. [5] Crimping pliers according to claim 2, characterized bythat the clamping elements (21) are arranged relatively pivotably on the base (11) and the positioning elements (34) are arranged relatively pivotably on the working heads (33), wherein, when the crimping module (4) is located on the base (1), the two clamping elements (21) and the two crimping dies (41) form two first insertion gaps (51), wherein each clamping element (21) forms a first insertion gap (51) with a crimping die (41), wherein the two positioning elements (34) and two insertion sections (333) of the two working heads (33) form two second insertion gaps (52), wherein each positioning element (34) forms a second insertion gap (52) with an insertion section (333) of the working head (33), wherein, when the crimping module (4) is to be transferred from the support frame (1) to the pliers body (3),the two positioning elements (34) in the unlocked state are inserted into the two first insertion gaps (51) and the crimping dies (41) are inserted in the opposite direction into the two second insertion gaps (52), wherein during the transfer the two crimping dies (41) push the two positioning elements (34) away from each other vertically to the insertion direction in order to indirectly move the two clamping elements (21) until the clamping sections (22) of the two clamping elements (21) are separated from the first connecting sections (42) of the two crimping dies (41) and the positioning sections (35) of the two positioning elements (34) are connected to the second connecting sections (43) of the two crimping dies (41). [6] Crimping pliers according to claim 2, characterized bythat the clamping elements (21) are arranged relatively pivotably on the base (11) and the positioning elements (34) are arranged relatively pivotably on the working heads (33), wherein, when the crimping module (4) is located on the pliers body (3), the two clamping elements (21) form a clamping opening (23), wherein the two positioning elements (34) and the two crimping dies (41) form two third insertion gaps (53), wherein each positioning element (34) forms a third insertion gap (53) with a crimping die (41), wherein, when the crimping module (4) is to be transferred from the pliers body (3) to the support frame (1), the two clamping elements (21) in the second state can be inserted into the two third insertion gaps (53), wherein the two crimping dies (41) simultaneously partially enter the clamping opening (23), whereby the two clamping elements (21) Push positioning elements (34) away from each other,until the positioning sections (35) of the two positioning elements (34) are separated from the second connecting sections (43) of the two crimping dies (41) and the clamping sections (22) of the two clamping elements (21) are connected to the first connecting sections (42) of the two crimping dies (41). [7] Crimping pliers according to claim 2, characterized by that the support frame (1) further comprises a mounting section (12), wherein a handle (31) is detachably inserted into the mounting section (12). [8] Crimping pliers according to claim 7, characterized byin that one of the two handles (31) is provided with at least one fitting recess (311), wherein the support frame (1) further comprises at least one actuating element (13), wherein the central section of the at least one actuating element (13) is positioned on the mounting section (12), wherein the two opposite ends of the at least one actuating element (13) are free ends and can move relative to the connecting section (12) like a rocker, wherein one end of the at least one actuating element (13) is provided with a fitting projection (14) and the other end can be pressed from the outside, and wherein the fitting projection (14) of the at least one actuating element (13) can protrude into the interior of the connecting section (12) in order to fit into the at least one fitting recess (311). [9] Crimping pliers according to one of claims 2, 4 or 8, characterized bythat each crimping die (41) has a sliding section (44), wherein each working head (33) has a sliding groove (331) and a base body (332), wherein the sliding groove (331) extends in the base body (332), wherein the sliding section (44) can slide along the sliding groove (331), wherein the pliers body (3) further has an alignment mechanism (37), wherein the alignment mechanism (37) includes a blocking element (38) and a stop element (39), wherein the blocking element (38) is arranged on the base body (332) of one working head (33) and can move into a blocking position, wherein the stop element (39) is provided on the base body (332) of the other working head (33), wherein the blocking element (38) and the stop element (39) move together with the two working heads (33), wherein when the blocking element (38) moved into the blocking position, the blocking element (38) is located on the path of movement of the stop section (39),wherein the blocking element (38) and the stop portion (39) can engage with each other in a predetermined position, so that the positions of the sliding grooves (331) of the two working heads (33) coincide with the positions of the sliding portions (44) of the two crimping dies (41).

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