A cable joint crimping device

Abstract

This application discloses a cable connector crimping device, comprising: a main body and a driving component; an oil groove and a support are provided at one end of the main body; a slidable plunger is provided in the oil groove; the driving component is connected to the plunger; a first connecting plate is provided at the end of the plunger away from the main body; a second connecting plate is provided at the end of the support away from the main body; a rotatable first shaft is provided on the first connecting plate; a rotatable second shaft is provided on the second connecting plate; a first bushing is sleeved on the first shaft; a second bushing is sleeved on the second shaft; a first clamping block is fixed on the first bushing near the second shaft; a second clamping block is fixed on the second bushing near the first shaft; the shortest distance between the first clamping block and the second clamping block is less than the outer diameter of the crimping tube. In the cable connector crimping device provided by this application, the distance between the first clamping block and the second clamping block is smaller than that of existing manual hydraulic pliers, thereby improving crimping efficiency and reducing operational intensity.

Description

Technical Field

[0001] This application relates to the field of cable joint technology, and in particular to a cable joint crimping device. Background Technology

[0002] When two cables need to be connected, the insulation layer at both ends of the cables needs to be removed to expose the conductors. Then, the conductors of the two cables are wound together and connected, and a crimping tube is put between the conductors. The crimping tube is usually made of copper, which has good conductivity. Finally, the crimping tube needs to be flattened with manual hydraulic pliers to make the conductors inside the crimping tube fit tightly.

[0003] Existing manual hydraulic pliers generally include two clamps and a handle. When using them, the crimping tube needs to be placed between the grooves of the two clamps. Then, the handle is rotated back and forth continuously. The oil pump inside the manual hydraulic pliers reduces the distance between the two clamps, causing the clamps to squeeze and deform the crimping tube. Finally, the clamps release the crimping tube.

[0004] When using existing manual hydraulic crimping tools, the distance between the clamping blocks must be greater than or equal to the outer diameter of the crimping pipe in order to place the crimping pipe between them. As a result, the movement path of the clamping blocks when they squeeze the crimping pipe is relatively large, which greatly increases the number of times the operator has to turn the handle. This leads to a decrease in crimping efficiency and a high level of operator fatigue. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a cable connector crimping device to solve the problems of low crimping efficiency and high operating intensity of existing manual hydraulic pliers.

[0006] To achieve the above technical objectives, this application provides a cable connector crimping device, comprising: a main body and a driving component;

[0007] One end of the main body is provided with an oil tank and a support;

[0008] A sliding plunger is provided inside the oil tank;

[0009] The driving component is connected to the plunger and is used to drive the plunger to slide along the oil groove;

[0010] A first connecting plate is provided at the end of the plunger away from the main body;

[0011] A second connecting plate is provided at the end of the bracket away from the main body;

[0012] The first connecting plate is provided with a rotatable first shaft;

[0013] The second connecting plate is provided with a rotatable second shaft;

[0014] A first bushing is fitted onto the first rotating shaft;

[0015] A second bushing is fitted onto the second rotating shaft;

[0016] A first spring is sleeved on the first rotating shaft, with its two ends fixedly connected to the first bushing;

[0017] A second spring is sleeved on the second rotating shaft, with both ends fixedly connecting the second rotating shaft and the second bushing;

[0018] A first clamping block is fixed on the side of the first bushing near the second rotating shaft;

[0019] A second clamping block is fixed on the side of the second bushing near the first rotating shaft;

[0020] The first clamping block has a first opening groove on the side near the second clamping block;

[0021] The second clamping block has a second opening slot on the side near the first clamping block;

[0022] A compression space for clamping the pressure tube is formed between the first clamping block and the second clamping block;

[0023] The shortest distance between the first clamping block and the second clamping block is less than the outer diameter of the pressure tube.

[0024] Furthermore, there are two first connecting plates, which are spaced apart along the axial direction of the first rotating shaft;

[0025] The number of the second connecting plates is two, and they are spaced apart along the axial direction of the second rotating shaft;

[0026] Both the first rotating shaft and the first bushing are disposed between the two first connecting plates;

[0027] The second rotating shaft and the second bushing are both disposed between the two second connecting plates.

[0028] Furthermore, two first limiting protrusions are provided at intervals on the first rotating shaft;

[0029] Two second limiting protrusions are provided at intervals on the second rotating shaft;

[0030] The first bushing is clamped between the two first limiting protrusions;

[0031] The second bushing is sandwiched between the two second limiting protrusions.

[0032] Furthermore, a first receiving groove is provided inside the first bushing;

[0033] The second bushing is provided with a second receiving groove;

[0034] The first spring is disposed within the first receiving groove;

[0035] The second spring is disposed within the second receiving groove.

[0036] Furthermore, the first bushing is provided with a plurality of first clamping blocks arranged in a circular pattern;

[0037] The second bushing is provided with a plurality of second clamping blocks arranged in a circular pattern.

[0038] Furthermore, the depths of the first openings on the multiple first clamping blocks are different;

[0039] The depths of the second opening slots on the multiple second clamping blocks are different.

[0040] Furthermore, it also includes transmission components;

[0041] The transmission assembly drives the first rotating shaft and the second rotating shaft to rotate in opposite directions.

[0042] Furthermore, the transmission assembly includes a first bevel gear, a second bevel gear, a first drive shaft, a second drive shaft, and an intermediate shaft;

[0043] The first bevel gear is connected to the first rotating shaft;

[0044] The second bevel gear is connected to the second rotating shaft;

[0045] The first drive shaft is disposed on the first connecting plate and meshes with the first bevel gear;

[0046] The second drive shaft is disposed on the second connecting plate and meshes with the second bevel gear;

[0047] The intermediate shaft is disposed between the first drive shaft and the second drive shaft, and is meshed with both the first drive shaft and the second drive shaft.

[0048] Furthermore, the driving element includes: a handle;

[0049] The handle is rotatably connected to the main body;

[0050] The main body is provided with a first cavity and a second cavity;

[0051] A sliding first piston is provided inside the first cavity;

[0052] The first piston divides the first cavity into an oil cavity and a motion cavity;

[0053] A sliding second piston is provided inside the second cavity;

[0054] The end of the second piston facing the handle is connected to a piston rod that extends out of the main body;

[0055] The end of the second piston furthest from the handle is connected to a third spring that abuts against the wall of the second cavity.

[0056] The plunger has a groove on its end face near the main body;

[0057] A fourth spring is provided inside the groove to abut against the oil groove;

[0058] The oil cavity is connected to one end of the second cavity through a first oil passage;

[0059] The other end of the second cavity is connected to the groove via a second oil passage;

[0060] The second piston is provided with a third oil passage connecting the two ends of the second cavity;

[0061] One-way valves are installed on the first oil passage, the second oil passage, and the third oil passage.

[0062] Furthermore, the main body is also provided with an oil return channel and a sliding cavity;

[0063] The oil return channel connects the oil tank and the oil chamber;

[0064] The sliding cavity is connected to the oil return passage;

[0065] A slidable oil return valve plate is provided inside the sliding cavity;

[0066] The return valve plate is connected to a handle that extends out of the main body;

[0067] A sixth spring is connected between the oil return valve plate and the main body;

[0068] The handle is used to slide the return valve plate to control the opening and closing of the return oil passage.

[0069] As can be seen from the above technical solutions, this application provides a cable connector crimping device, comprising: a main body and a driving component; an oil groove and a support are provided at one end of the main body; a slidable plunger is provided in the oil groove; the driving component is connected to the plunger for driving the plunger to slide along the oil groove; a first connecting plate is provided at the end of the plunger away from the main body; a second connecting plate is provided at the end of the support away from the main body; a rotatable first rotating shaft is provided on the first connecting plate; a rotatable second rotating shaft is provided on the second connecting plate; a first bushing is sleeved on the first rotating shaft; a second bushing is sleeved on the second rotating shaft; the first rotating shaft... A first spring is fitted onto the first rotating shaft and the first bushing, with both ends fixedly connected; a second spring is fitted onto the second rotating shaft, with both ends fixedly connected to the second rotating shaft and the second bushing; a first clamping block is fixed to the first bushing near the second rotating shaft; a second clamping block is fixed to the second bushing near the first rotating shaft; a first opening groove is provided on the side of the first clamping block near the second clamping block; a second opening groove is provided on the side of the second clamping block near the first clamping block; a compression space for clamping the crimping tube is formed between the first clamping block and the second clamping block; the shortest distance between the first clamping block and the second clamping block is less than the outer diameter of the crimping tube. In the cable connector crimping device provided in this application, the distance between the first clamping block and the second clamping block is smaller than that of existing manual hydraulic pliers, thereby improving crimping efficiency and reducing operational intensity. Attached Figure Description

[0070] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0071] Figure 1 A front view of the overall structure of a cable connector crimping device provided in an embodiment of this application;

[0072] Figure 2 This is a cross-sectional view of the overall structure of a cable joint crimping device provided in an embodiment of this application;

[0073] Figure 3 A cable connector crimping device provided in this application embodiment is along Figure 2 Sectional view of AA;

[0074] Figure 4 A cable connector crimping device provided in this application embodiment is along Figure 2 Sectional view of BB;

[0075] Figure 5 This is a schematic diagram of a cable connector crimping device in an embodiment of this application, showing the crimping tube preparing to enter the crimping space.

[0076] Figure 6 A schematic diagram illustrating the movement of a crimping tube beyond the crimping space in a cable connector crimping device provided in an embodiment of this application;

[0077] Figure 7 This is a schematic diagram of a cable connector crimping device with the crimping tube entering the crimping space, provided in an embodiment of this application.

[0078] Figure 8 This is a schematic diagram of a cable joint crimping device according to an embodiment of the present application, showing a large-diameter crimping tube entering the crimping space;

[0079] Figure 9 A schematic diagram of a cable connector crimping device provided in this application embodiment after the transmission component is installed;

[0080] Figure 10 for Figure 9 Enlarged view of part D in the image;

[0081] Figure 11 for Figure 2 Enlarged view of section C in the image. Detailed Implementation

[0082] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0083] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0084] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0085] Please see Figures 1 to 4 The cable connector crimping device provided in this application embodiment includes: a main body 10 and a driving member 20; one end of the main body 10 is provided with an oil groove 11 and a bracket 13; a slidable plunger 12 is provided in the oil groove 11; the driving member 20 is connected to the plunger 12 for driving the plunger 12 to slide along the oil groove 11; a first connecting plate 30 is provided on the end of the plunger 12 away from the main body 10; a second connecting plate 40 is provided on the end of the bracket 13 away from the main body 10; a rotatable first rotating shaft 31 is provided on the first connecting plate 30; a rotatable second rotating shaft 41 is provided on the second connecting plate 40; a first bushing 32 is sleeved on the first rotating shaft 31; a second bushing 42 is sleeved on the second rotating shaft 41; and a... A first spring 34 is fixedly connected at both ends to a first rotating shaft 31 and a first bushing 32; a second spring 44 is sleeved on a second rotating shaft 41, which is fixedly connected at both ends to a second rotating shaft 41 and a second bushing 42; a first clamping block 33 is fixed on the side of the first bushing 32 near the second rotating shaft 41; a second clamping block 43 is fixed on the side of the second bushing 42 near the first rotating shaft 31; a first opening groove 35 is provided on the side of the first clamping block 33 near the second clamping block 43; a second opening groove 45 is provided on the side of the second clamping block 43 near the first clamping block 33; a compression space 60 for clamping the pressure tube 50 is formed between the first clamping block 33 and the second clamping block 43; the shortest distance between the first clamping block 33 and the second clamping block 43 is less than the outer diameter of the pressure tube 50.

[0086] Specifically, the oil groove 11 can be located at the top of the main body 10; the length direction of the oil groove 11 is vertical; correspondingly, the sliding direction of the plunger 12 is vertical. The plunger 12 is located beside the bracket 13. The first connecting plate 30 and the second connecting plate 40 are located at the top and bottom of the bracket 13, respectively. The first opening groove 35 and the second opening groove 45 can both be trapezoids with a width ranging from the outside to the inside.

[0087] The first rotating shaft 31 and the first connecting plate 30 can be fixedly connected, while the first bushing 31 can be rotatably sleeved on the first rotating shaft 31; or the first rotating shaft 31 and the first connecting plate 30 can be rotatably connected, while the first bushing 31 is fixedly connected to the first rotating shaft 31.

[0088] In practical use, initially, please refer to... Figure 5 As shown in the attached diagram, as the pressure tube 50 enters the extrusion space 60 from left to right, it gradually approaches and abuts against the first clamping block 33 and the second clamping block 43. Since the shortest distance between the first clamping block 33 and the second clamping block 43 is less than the outer diameter of the pressure tube 50, the pressure tube 50 can push the first clamping block 33 and the second clamping block 43 to rotate to the right. During the rotation, both the first spring 34 and the second spring 44 are twisted, and the size of the extrusion space 60 continuously increases.

[0089] When the compression space 60 is rotated to its minimum distance, that is, when the shortest distance between the first clamping block 33 and the second clamping block 43 is greater than the pressure tube 50, the pressure tube 50 disengages from the first clamping block 33 and the second clamping block 43. Figure 7 As shown. Please refer to [link / reference] afterward. Figure 8 Under the action of the first spring 34 and the second spring 44, the second clamping block 43 rotates clockwise and the first clamping block 33 rotates counterclockwise. At this time, the pressure tube 50 moves to the left, and the first clamping block 33 and the second clamping block 43 gradually return to their relative positions. The pressure tube 50 is located between the first clamping block 33 and the second clamping block 43, thus completing the clamping of the pressure tube 50 by the first clamping block 33 and the second clamping block 43.

[0090] The clamping process of the crimping tube 50 described above can be completed within a few seconds. That is, when the distance between the first clamping block 33 and the second clamping block 43 is small, the crimping tube can be embedded into the compression space 60. At this time, the plunger 12 can be driven to slide by the driving device 20, so that the first clamping block 33 moves along the axis of the oil groove 11 towards the second clamping block 43. The first clamping block 33 and the second clamping block 43 move closer together, and the first opening groove 35 and the second opening groove 45 squeeze the crimping tube 50, thereby squeezing and deforming the crimping tube 50, and thus completing the crimping. After the crimping is completed, the first clamping block 33 moves away from the second clamping block 43, and the distance between the first clamping block 33 and the second clamping block 43 returns to the initial state. At this time, the crimping tube 50 moves away from the bracket 13, that is, the crimping tube 50 moves to the left, the upper end of the first clamping block 33 will move to the left, the lower end of the second clamping block 43 will move to the left, and finally the crimping tube leaves the compression space 60. In summary, because the distance between the first clamping block 33 and the second clamping block 43 is small, the distance the first clamping block 33 moves is reduced during crimping, thereby improving the crimping efficiency and making it easier for personnel to work.

[0091] In one embodiment, see Figure 3 and Figure 4There are two first connecting plates 30, which are spaced apart along the axial direction of the first rotating shaft 31; there are two second connecting plates 40, which are spaced apart along the axial direction of the second rotating shaft 41; the first rotating shaft 31 and the first bushing 32 are both disposed between the two first connecting plates 30; the second rotating shaft 41 and the second bushing 42 are both disposed between the two second connecting plates 40.

[0092] Specifically, the two ends of the first rotating shaft 31 are rotatably connected to the two first connecting plates 30. The two ends of the second rotating shaft 32 are rotatably connected to the two second connecting plates 40.

[0093] Furthermore, the first rotating shaft 31 is provided with two first limiting protrusions 311 spaced apart; the second rotating shaft 41 is provided with two second limiting protrusions 411 spaced apart; the first bushing 32 is sandwiched between the two first limiting protrusions 311; the second bushing 42 is sandwiched between the two second limiting protrusions 411. Furthermore, the first bushing 32 is provided with a first receiving groove 321; the second bushing 42 is provided with a second receiving groove 421; the first spring 34 is disposed in the first receiving groove 321; the second spring 44 is disposed in the second receiving groove 421.

[0094] In one embodiment, the two first limiting protrusions 311 abut against the first bushing 32 and the first connecting plate 30, and the two second limiting protrusions 411 abut against the second bushing 42 and the second connecting plate 40. This arrangement can prevent the first bushing 32 and the second bushing 42 from sliding, and can make the overall structure more compact.

[0095] In one embodiment, both the first rotating shaft 31 and the second rotating shaft 41 are connected by bolts 80. Specifically, by tightening the bolts 80, the first limiting protrusion 311, the first connecting plate 30, and the first bushing 32 are pressed together, and / or the second limiting protrusion 411, the second connecting plate 40, and the second bushing 42 are pressed together, thereby preventing the first rotating shaft 31 and / or the second rotating shaft 41 from rotating. Correspondingly, when the first rotating shaft 31 and / or the second rotating shaft 41 need to rotate, the bolts 80 can be loosened.

[0096] In one embodiment, a plurality of first clamping blocks 33 arranged in a circular pattern are provided on the first bushing 32; and a plurality of second clamping blocks 43 arranged in a circular pattern are provided on the second bushing 42.

[0097] By setting multiple first clamping blocks 33 and second clamping blocks 43, it is easier to clamp the pressure pipe 50, which can improve the fault tolerance of the device. In this embodiment, the number of first clamping blocks 33 and second clamping blocks 43 can both be four.

[0098] Furthermore, the depths of the first opening slots 35 on the plurality of first clamping blocks 33 are different; the depths of the second opening slots 45 on the plurality of second clamping blocks 43 are different. Moreover, the depths of the first opening slots 35 on the plurality of first clamping blocks 33 correspond one-to-one with the depths of the second opening slots 45 on the plurality of second clamping blocks 43.

[0099] By setting a first opening groove 35 and a second opening groove 45 with different depths, this device can be applied to press-fit pipes with different outer diameters, thus improving its adaptability.

[0100] It should be noted that a first clearance opening 36 is provided between adjacent first clamping blocks 33; and a second clearance opening 46 is provided between adjacent second clamping blocks 34.

[0101] In one embodiment, see Figures 1 to 11 It also includes a transmission assembly 70; the transmission assembly 70 is a transmission connection between the first rotating shaft 31 and the second rotating shaft 41, used to drive the first rotating shaft 31 and the second rotating shaft 41 to rotate in opposite directions.

[0102] The transmission assembly 70 can drive the first rotating shaft 31 and the second rotating shaft 41 to rotate, thereby selecting different first clamping blocks 33 and second clamping blocks 43 according to different sizes of press pipes 50, and realizing automatic switching.

[0103] The transmission assembly 70 drives the first rotating shaft 31 and the second rotating shaft 41 to rotate at the same speed, so as to avoid the depths of the first opening groove 35 and the second opening groove 45 not corresponding.

[0104] Furthermore, the transmission assembly 70 includes a first bevel gear 71, a second bevel gear 72, a first transmission shaft 73, a second transmission shaft 74, and an intermediate shaft 75; the first bevel gear 71 is driven to the first rotating shaft 31; the second bevel gear 72 is driven to the second rotating shaft 41; the first transmission shaft 73 is disposed on the first connecting plate 30 and meshes with the first bevel gear 71; the second transmission shaft 74 is disposed on the second connecting plate 40 and meshes with the second bevel gear 72; the intermediate shaft 75 is disposed between the first transmission shaft 73 and the second transmission shaft 74 and meshes with both the first transmission shaft 73 and the second transmission shaft 74.

[0105] Specifically, please refer to Figure 10 The first drive shaft 73, the second drive shaft 74, and the intermediate shaft 75 are all provided with bevel gears at both ends. The first bevel gear 71, the second bevel gear 72, the first drive shaft 73, the second drive shaft 74, and the intermediate shaft 75 are all connected to each other by bevel gear meshing.

[0106] It should be noted that the axial direction of the intermediate shaft 75 is the same as that of the main body 10, both being vertical. Two limiting blocks 77 are fixed on the bracket 13. The intermediate shaft 75 passes through the limiting blocks 77 and is fixed to the bracket 13. Similarly, the first drive shaft 73 and the second drive shaft 74 can be fixed to the second connecting plate 40 and the first connecting plate 30 respectively by limiting blocks.

[0107] For more specific details, please refer to Figure 3 and Figure 4 A first bevel gear 71 has a first through groove 711 in its middle. A second bevel gear 72 has a second through groove 721 in its middle. A first connecting plate 30 has a first rotating groove 36. A second connecting plate 40 has a second rotating groove 46. A first extension shaft 312 extends from the front end of a first rotating shaft 31; a second extension shaft 412 extends from the front end of a second rotating shaft 41. In this embodiment, at the position of the first connecting plate 30, a bolt 80 passes through the first through groove 711 and extends into the first extension shaft 312, and is threadedly connected to the first extension shaft 312. At the position of the second connecting part 40, a bolt 80 passes through the second through groove 721 and extends into the second extension shaft 412, and is threadedly connected to the second extension shaft 412. Furthermore, the first bevel gear 71 abuts against the first connecting plate 30. The second bevel gear 72 abuts against the second connecting plate 40. Therefore, when the bolt 80 is tightened, the rotation of the first bevel gear 71, the second bevel gear 72, the first rotating shaft 31, and the second rotating shaft 41 can be restricted.

[0108] In one embodiment, see Figure 2 and Figure 11 The driving component 20 includes: a handle 21; the handle 21 is rotatably connected to the main body 10; the main body 10 has a first cavity 100 and a second cavity 200; the first cavity 100 has a slidable first piston 110; the first piston 110 divides the first cavity 100 into an oil cavity 101 and a motion cavity 102; the second cavity 200 has a slidable second piston 210; the end of the second piston 210 facing the handle 21 is connected to a piston rod 220 extending out of the main body 10; the end of the second piston 210 away from the handle 21 is connected to a piston rod 220 that abuts against the second piston 210. The third spring 230 of the cavity wall of the cavity 200 has a groove 121 on the end face of the plunger 12 near the main body 10; a fourth spring 122 is provided in the groove 121 to abut against the oil groove 11; the oil cavity 101 is connected to one end of the second cavity 200 through the first oil passage 300; the other end of the second cavity 200 is connected to the groove 121 through the second oil passage 400; a third oil passage 500 is provided on the second piston 210 to connect the two ends of the second cavity 200; a one-way valve 600 is provided on the first oil passage 300, the second oil passage 400 and the third oil passage 500.

[0109] When the handle 21 is pressed, the piston rod 220 is pushed, which in turn pushes the second piston 210 to slide within the second cavity 200, thereby adjusting the pressure within the second cavity 200 and the groove 121 and causing the plunger 12 to slide. The second cavity 200 includes an output end 202 and an input end 201. The output end 202 is located near the handle 21. The input end 201 is connected to the oil chamber 101 via the first oil passage 300.

[0110] It should be noted that the inner diameter of the third oil passage 500 is smaller than that of the first oil passage 300 and the second oil passage 400. Thus, when the second piston 210 slides, the second piston 210 can cause the pressure inside the groove 121 to change, and the fluid can pass through the third oil passage 500.

[0111] In one embodiment, the main body 10 is further provided with an oil return channel 700 and a sliding cavity 800; the oil return channel 700 connects the oil groove 11 and the oil cavity 101; the sliding cavity 800 connects to the oil return channel 700; a slidable oil return valve plate 810 is provided in the sliding cavity 800; a handle 820 extending out of the main body 10 is connected to the oil return valve plate 810; a sixth spring 830 is connected between the oil return valve plate 810 and the main body 10; the handle 820 is used to drive the oil return valve plate 810 to slide in order to control the opening and closing of the oil return channel 700.

[0112] Specifically, when handle 21 moves closer to the main body 10, it compresses piston rod 220, causing second piston 210 to move towards input end 201, thus compressing third spring 230. Oil on the left side of second piston 210 flows to output end 202 through third oil passage 500. When handle 21 moves away from the main body 10, third spring 230 extends, causing second piston 210 to move towards output end 202. Because a one-way valve 600 is installed on third oil passage 500, oil that cannot flow from left to right through third oil passage 500 will push plunger 12 to slide. Therefore, by repeatedly pressing handle 21, the operator can gradually push plunger 12 away from the main body 10.

[0113] As the plunger 12 slides away from the main body 10, the fourth spring 122 extends. After the pressing is completed, pulling the handle 820 opens the oil return passage 700, allowing the oil in the groove 121 to flow back into the oil chamber 101 through the oil return passage 700, thus completing the reset of the plunger 12.

[0114] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cable connector crimping device, characterized in that, include: Main body (10) and driving component (20); One end of the main body (10) is provided with an oil tank (11) and a support (13). A sliding plunger (12) is provided inside the oil tank (11); The drive unit (20) is connected to the plunger (12) and is used to drive the plunger (12) to slide along the oil groove (11); A first connecting plate (30) is provided at one end of the plunger (12) away from the main body (10); The bracket (13) is provided with a second connecting plate (40) at one end away from the main body (10); The first connecting plate (30) is provided with a rotatable first rotating shaft (31); The second connecting plate (40) is provided with a rotatable second shaft (41); A first bushing (32) is fitted on the first rotating shaft (31); A second bushing (42) is fitted onto the second rotating shaft (41); A first spring (34) is sleeved on the first rotating shaft (31) and the first bushing (32) with its two ends fixedly connected. A second spring (44) is sleeved on the second rotating shaft (41) and the second bushing (42) with its two ends fixedly connected. A first clamping block (33) is fixed on the side of the first bushing (32) near the second rotating shaft (41); A second clamping block (43) is fixed on the side of the second bushing (42) near the first rotating shaft (31). The first clamping block (33) has a first opening groove (35) on the side near the second clamping block (43); The second clamping block (43) has a second opening groove (45) on the side near the first clamping block (33); A compression space (60) for clamping the pressure tube (50) is formed between the first clamping block (33) and the second clamping block (43). The shortest distance between the first clamping block (33) and the second clamping block (43) is less than the outer diameter of the pressure tube (50); The first bushing (32) is provided with a first receiving groove (321); The second bushing (42) is provided with a second receiving groove (421); The first spring (34) is disposed in the first receiving groove (321); The second spring (44) is disposed within the second receiving groove (421); The first bushing (32) is provided with a plurality of first clamping blocks (33) arranged in a circular pattern; The second bushing (42) is provided with a plurality of second clamping blocks (43) arranged in a circular pattern; The drive unit (20) includes: a handle (21); The handle (21) is rotatably connected to the main body (10); The main body (10) is provided with a first cavity (100) and a second cavity (200). A sliding first piston (110) is provided inside the first cavity (100). The first piston (110) divides the first cavity (100) into an oil cavity (101) and a motion cavity (102). A slidable second piston (210) is provided inside the second cavity (200); The second piston (210) is connected to a piston rod (220) extending out of the body (10) at one end facing the handle (21). The end of the second piston (210) away from the handle (21) is connected to a third spring (230) that abuts against the cavity wall of the second cavity (200). The plunger (12) has a groove (121) on its end face near the body (10). A fourth spring (122) is provided in the groove (121) to abut against the oil groove (11). The oil cavity (101) is connected to one end of the second cavity (200) through the first oil passage (300); The other end of the second cavity (200) is connected to the groove (121) through the second oil passage (400); The second piston (210) is provided with a third oil passage (500) that connects the two ends of the second cavity (200); One-way valves (600) are provided on the first oil passage (300), the second oil passage (400) and the third oil passage (500).

2. The cable joint crimping device according to claim 1, characterized in that, The number of the first connecting plates (30) is two, and they are spaced apart along the axial direction of the first rotating shaft (31); The number of the second connecting plates (40) is two, and they are spaced apart along the axial direction of the second rotating shaft (41); The first rotating shaft (31) and the first bushing (32) are both disposed between the two first connecting plates (30); The second rotating shaft (41) and the second bushing (42) are both disposed between the two second connecting plates (40).

3. The cable joint crimping device according to claim 2, characterized in that, Two first limiting protrusions (311) are provided at intervals on the first rotating shaft (31); Two second limiting protrusions (411) are provided at intervals on the second rotating shaft (41); The first bushing (32) is sandwiched between the two first limiting protrusions (311); The second bushing (42) is sandwiched between the two second limiting protrusions (411).

4. The cable joint crimping device according to claim 1, characterized in that, The depths of the first openings (35) on the multiple first clamping blocks (33) are different; The second opening slots (45) on the multiple second clamping blocks (43) have different depths.

5. The cable joint crimping device according to claim 1, characterized in that, It also includes a transmission assembly (70); The transmission assembly (70) is a transmission connection between the first rotating shaft (31) and the second rotating shaft (41), and is used to drive the first rotating shaft (31) and the second rotating shaft (41) to rotate in opposite directions.

6. The cable joint crimping device according to claim 5, characterized in that, The transmission assembly (70) includes a first bevel gear (71), a second bevel gear (72), a first drive shaft (73), a second drive shaft (74), and an intermediate shaft (75). The first bevel gear (71) is connected to the first rotating shaft (31) via a transmission. The second bevel gear (72) is connected to the second rotating shaft (41). The first drive shaft (73) is disposed on the first connecting plate (30) and meshes with the first bevel gear (71); The second drive shaft (74) is disposed on the second connecting plate (40) and meshes with the second bevel gear (72); The intermediate shaft (75) is disposed between the first drive shaft (73) and the second drive shaft (74), and is meshed with both the first drive shaft (73) and the second drive shaft (74).

7. The cable joint crimping device according to claim 1, characterized in that, The main body (10) is also provided with an oil return channel (700) and a sliding cavity (800); The return oil passage (700) connects the oil tank (11) and the oil cavity (101). The sliding cavity (800) is connected to the oil return passage (700); A slidable return oil valve plate (810) is provided inside the sliding cavity (800). The return valve plate (810) is connected to a handle (820) that extends out of the main body (10). A sixth spring (830) is connected between the return valve plate (810) and the main body (10). The handle (820) is used to drive the return valve plate (810) to slide in order to control the opening and closing of the return passage (700).

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