Cable connection equipment and method

Abstract

The invention provides a cable connection device and method, and belongs to the technical field of cable connection, and the cable connection device comprises an inner joint used for fixing a cable core and an outer joint used for fixing a cable body and reinforcing the connection state of the inner joint. The wire cores are fixed in the inner joint in three states of mutual winding, relative independence and conductor exposure, the filling head is combined to carry out primary filling and extrusion and secondary deep filling and extrusion on the wound wire cores, and the outer joint is used to further press and fix the wire cores in the winding state, the independent state and the conductor exposure state. The connection strength, the connection stability and the connection reliability of the cable are fully improved, so that the cable can still keep a stable and reliable connection state even under the condition that the connection of the cable body is loosened, and the cable has the advantage of being convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection, and in particular to a cable connection device and method. Background Art

[0002] Cables and cables or cables and devices are usually connected together using connecting devices to achieve effective transmission of power or signals. Common connecting devices include terminal blocks, connectors, terminal blocks, etc.

[0003] At present, the main way to connect and fix cables to connecting devices is to press and fix the ends of the cables. The stability and reliability of the connection mainly rely on the pressing force directly applied by the connecting device to the ends of the cables. Once the cable is pulled by external force and the connection at the end becomes loose, the external force will directly act on the wire core, which can easily loosen or even disconnect the connection state of the wire core, thereby affecting the stability and reliability of the cable connection. Summary of the invention

[0004] The present invention provides a cable connection device and method to solve the problem in the related art that when the cable is connected, once the end is pulled loose by external force, the external force will directly act on the wire core, which may easily loosen or even disconnect the wire core connection, thereby affecting the stability and reliability of the cable connection.

[0005] The present invention provides a cable connection device, which includes an inner joint for fixing a wire core, and the inner joint includes a symmetrically distributed crimping bin body, wherein a crimping zone 1, a crimping zone 2 and a crimping zone 3 are sequentially arranged in the crimping bin body, and the wire core passes through the crimping zone 1, the crimping zone 2 and the crimping zone 3 in sequence; the wire core in the crimping zone 1 is in a wound state, the wire core in the crimping zone 2 is in an independent state, and the wire core in the crimping zone 3 is in a conductor-exposed state, and the symmetrical crimping bin body is pressed and fixed to perform preliminary compression and fixation on the wire core in the wound state, the wire core in the independent state and the wire core in the conductor-exposed state simultaneously; a filling head is arranged in the crimping zone 1 and is slidably connected to the crimping bin body, and one end of the filling head is inserted into The end of the wound wire core has a conical structure, and a clamping head for preliminarily fixing the wire core is provided in one of the crimping zones 2 to fix the cable body and reinforce the external joint in the connection state of the inner joint, and the external joint includes an annular seat fixedly connected to one of the crimping chamber bodies, a locking sleeve threadedly connected to the annular seat, and a compression sleeve rotatably connected to the locking sleeve; a compression head passes through and is slidably connected to the crimping chamber body; the compression sleeve is fed axially as the locking sleeve is threadedly locked with the annular seat and limits the filling head and the compression head in the process, so that the compression head can compress and fix the wire cores in the crimping zones 1 and 2 and the conductors in the crimping zone 3, and the filling head can penetrate into and squeeze the wound wire cores for secondary filling and squeezing.

[0006] In one possible implementation, the clamping sleeve includes a sleeve body with a limiting piece arranged inside, the clamping head includes a first clamping piece located in the first crimping zone, a second clamping piece located in the second crimping zone, and a third clamping piece located in the third crimping zone, the filling head includes a unified connecting piece and a plurality of filling pieces, there are a plurality of limiting pieces which respectively correspond to the first clamping piece, the second clamping piece, the third clamping piece and the unified connecting piece, the clamping sleeve is fed axially as the locking sleeve is threadedly locked with the annular seat, the limiting piece is wedge-matched with the corresponding first clamping piece, the second clamping piece, the third clamping piece and the unified connecting piece, so that the first clamping piece, the second clamping piece and the third clamping piece clamp the wire cores and conductors in the corresponding areas, and the filling pieces penetrate deep into the wound wire cores.

[0007] In one possible implementation, the clamping surface of the first clamping member is planar, the clamping surface of the second clamping member is wavy and arc-shaped as a whole, the clamping surface of the third clamping member is arc-shaped, and there are a plurality of first clamping members distributed along the circumference of the crimping bin body.

[0008] In one possible implementation, the number of wire cores is two, and placement grooves corresponding to the wire cores are provided in the second crimping zone. The clamping head corresponds to the placement grooves one by one, and the clamping head includes symmetrically distributed clamping parts. Flexible protrusions are provided on the clamping parts, and the clamping parts can be deformed. A limiting groove is provided on the crimping bin body that is not connected to the clamping head, and the limiting groove is used to limit and fix the clamping head.

[0009] In a possible implementation, a sealing ring and an extrusion ring are provided on the annular seat. The extrusion ring is slidably connected to the annular seat and cooperates with the sleeve body to squeeze the sealing ring under the pressure of the sleeve body.

[0010] In a possible implementation, through slots corresponding to the conductors are provided in the three crimping zones, and portions of the conductors outside the through slots are directly removed after the conductors pass through the through slots.

[0011] In a possible implementation, the symmetrical crimping bin body is hingedly connected on one side and buckledly connected on the other side.

[0012] A connection operation method for a cable connection device is completed by using the aforementioned cable connection device, and includes the following steps: S1: passing the wire core through an annular seat and placing the corresponding end of the cable body in the annular seat.

[0013] S2: Based on S1, firstly wrap the wire core and the part corresponding to the crimping zone 1 together, and place them in the crimping zone 1 on the crimping bin body equipped with a clamping piece, and at the same time insert the corresponding filling head into the wrapped wire core, then independently arrange the wire core corresponding to the crimping zone 2 in the crimping zone 2 and automatically clamp it through the clamping piece, and finally arrange the conductor in the wire core in the crimping zone 3.

[0014] S3: Based on S2, another crimping bin body is fixedly connected to the crimping bin body equipped with the clamping piece.

[0015] S4: Based on S3, the locking sleeve and the annular seat are fixedly connected together.

[0016] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. According to a cable connection device and method provided in the embodiments of the present invention, the wire cores are fixed in the inner joint in three states: mutually entangled, relatively independent and conductor exposed. Combined with the initial filling and squeezing of the wound wire cores and the secondary deep filling and squeezing of the wound wire cores by the filling head and the further pressing and fixing of the wire cores in the entangled state, independent state and conductor exposed state by the external joint, the connection strength, connection stability and reliability of the cable are fully improved, so that the cable can still maintain a stable and reliable connection state even when the cable body connection is loose, and it has the advantage of being easy to use.

[0017] 2. According to a cable connection device and method provided by an embodiment of the present invention, before the symmetrical crimping bin body is fixed, the filling head is initially inserted into the wound wire core and the clamping head initially fixes the wire core, so that the wire core is stably in the current state, which is convenient for the subsequent fixed connection of the symmetrical crimping bin body. After the crimping bin body is connected, the filling head is further inserted into the wound wire core to squeeze the wire core tightly, thereby improving the stability of the connection. The symmetrical crimping bin body is hingedly connected on one side and buckled on the other side, thereby facilitating the quick completion of the fixed connection, thereby improving the convenience of the connection process while fully improving the strength and stability of the cable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a cable connection device provided by an embodiment of the present invention.

[0019] Figure 2 The present invention is a schematic diagram of a cross-sectional structure of a sleeve of a cable connection device provided in an embodiment of the present invention.

[0020] Figure 3 The present invention is a schematic diagram of a crimping chamber structure of a cable connection device provided in an embodiment of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of a core connection state of a cable connection device provided by an embodiment of the present invention.

[0022] Figure 5 It is a structural schematic diagram of a limiter and a first pressing member of a cable connection device provided by an embodiment of the present invention.

[0023] Figure 6 The invention is a schematic structural diagram of a limit groove and a clamping member of a cable connection device provided in an embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the partial structure of a cable connection device provided by an embodiment of the present invention when a symmetrical crimping bin body is in an open state.

[0025] Figure 8 It is a schematic structural diagram of a second pressing member and a third pressing member of a cable connection device provided in an embodiment of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of two cable bodies provided by an embodiment of the present invention when they are connected.

[0027] In the figure: 1. wire core; 2. inner connector; 21. crimping chamber; 22. crimping zone 1; 23. crimping zone 2; 24. crimping zone 3; 25. filling head; 251. unified connector; 252. filling piece; 26. clamping head; 261. clamping piece; 262. flexible protrusion; 27. placement groove; 28. limiting groove; 29. ​​through groove; 3. cable body; 4. outer connector; 41. annular seat; 42. locking sleeve; 43. pressing sleeve; 431. limiting piece; 432. sleeve body; 44. pressing head; 441. first pressing piece; 442. second pressing piece; 443. third pressing piece; 45. sealing ring; 46. extrusion ring; 5. conductor. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] See also Figure 1 , Figure 3 and Figure 4 A cable connection device includes an inner connector 2 for fixing a wire core 1 and an outer connector 4 for fixing a cable body 3 and reinforcing the connection state of the inner connector 2. The wire core 1 is fixed in the inner connector 2 in three states: mutually entangled, relatively independent, and with the conductor 5 exposed. Combined with the outer connector 4, the cable body 3, the wire core 1 in the inner connector 2 and the conductor 5 are further fixed, thereby fully improving the connection strength of the cable as well as the stability and reliability of the connection. Even if the cable body 3 becomes loose, a stable and reliable connection state can still be maintained, and the device has the advantage of being easy to use.

[0030] See also Figure 1 , Figure 3 , Figure 4 and Figure 6The inner joint 2 includes a crimping chamber 21 symmetrically distributed in the upper and lower parts. The crimping chamber 21 is divided into a crimping area 1 22, a crimping area 23 and a crimping area 3 24 from left to right. A filling head 25 is provided in the crimping area 1 22. The filling head 25 includes a unified connecting piece 251 and a plurality of filling pieces 252. The plurality of filling pieces 252 are evenly distributed from left to right and fixedly connected to the unified connecting piece 251. The unified connecting piece 251 and the filling piece 252 are both slidably connected to the crimping chamber 21 (such as Figure 6 As shown), one end of the filler 252 is inserted into the wound wire core 1 and the end is in a tapered structure, as shown in FIG. Figure 4 As shown, the number of wire cores 1 in the cable is two, and the filling piece 252 is inserted into the wound wire core 1. The second crimping area 23 is provided with a placement groove 27 corresponding to the wire core 1, and the third crimping area 24 is provided with a through groove 29 corresponding to the conductor 5. A clamping head 26 is provided on the lower crimping warehouse body 21. The clamping head 26 is located in the second crimping area 23 and corresponds to the wire core 1 one by one. In the process of cable connection, part of the wire core 1 is firstly wound together, and then the wound part is pressed into the first crimping area 22 of the lower crimping warehouse body 21, and the corresponding end of the filling piece 252 in the first crimping area 22 is initially inserted into the wound wire core 1, and then the wire core 1 is placed in the corresponding placement groove 27. At this time, the clamping head 26 will automatically clamp the wire core 1, and finally the exposed conductor 5 is placed in the corresponding through groove 29. At this time, if there is any excess part of the conductor 5, it can be directly removed, and then the upper crimping warehouse body 21 is fixedly connected to On the lower crimping bin body 21, at this time, the upper crimping zone 1 22 and the lower crimping zone 1 22 are closed to form a primary crimping fixing zone to fix the wound wire core 1, and the filling piece 252 is filled and squeezed to make the wound wire core 1 firmly fixed in the primary crimping fixing zone, and the placement groove 27 in the upper crimping zone 23 and the corresponding placement groove 27 in the lower crimping zone 23 are closed to form two independent secondary crimping fixing zones to fix the wire core 1 respectively, and the through groove 29 in the upper crimping zone 3 24 and the through groove 29 in the lower crimping zone 3 24 are closed to form two independent tertiary crimping fixing zones to fix the exposed conductor 5 respectively. Through the three-level crimping fixation, the overall connection strength of the cable is fully improved, wherein the clamping head 26 is an elastic clamp that automatically clamps the wire core 1, so that the wire core 1 is in a preliminary fixed state, which is convenient for the subsequent upper crimping bin body 21 to be smoothly fixed and connected with the lower crimping bin body 21.

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The external connector 4 includes an annular seat 41 fixedly connected to the lower crimping bin body 21, a locking sleeve 42 threadedly connected to the annular seat 41, and a compression sleeve 43 rotatably connected to the locking sleeve 42 and slidably connected to the lower crimping bin body 21 left and right. The crimping bin body 21 is slidably connected to a compression head 44 inside and outside, and the compression head 44 penetrates the crimping bin body 21. After the symmetrical crimping bin body 21 is fixedly connected, the compression sleeve 43 is moved to the left so that its cover is sleeved on the symmetrical crimping bin body 21, and the compression sleeve 43 is fixedly connected to the crimping bin body 21 through the threaded connection between the locking sleeve 42 and the annular seat 41. In the process of the threaded connection between the locking sleeve 42 and the annular seat 41, the compression sleeve 43 limits the filling head 25 and the compression head 44, so that the compression head 44 further compresses and fixes the wire core 1 of the crimping zone 1 22 and the crimping zone 23 and the conductor 5 of the crimping zone 3 24, and the filling piece 252 penetrates into the wound wire core 1 and squeezes it tightly. The wire core 1 further improves the stability and reliability of the cable connection as a whole, wherein the front sides of the symmetrical crimping bin bodies 21 are hinged together, and the back sides are buckled together. The annular seat 41 is located at the left end of the crimping bin body 21. When the locking sleeve 42 is not threadedly connected to the annular seat 41, the locking sleeve 42 and the compression sleeve 43 are located at the right end of the crimping bin body 21. In the initial state, the back side of the symmetrical crimping bin body 21 is in a disconnected state and the two crimping bin bodies 21 are in an open state. During the cable connection process, the two wire cores 1 at the right end of the cable body 3 pass through the annular seat 41 and are located in the crimping bin body 21 until the annular seat 41 is clamped on the right end of the cable body 3. Then, the wire core 1 is twisted to make the two wire cores 1 entangled together and placed in the crimping area 22. Then, the wire core 1 is placed in the placement groove 27 and the through groove 29 in turn, and then the upper crimping bin body 21 is rotated to buckle it with the lower crimping bin body 21, which is convenient and easy to operate.

[0032] The cable connection device provided in the embodiment of the present invention can be used in pairs. In this case, the two compression sleeves 43 are fixedly connected together at one end away from the locking sleeve 42 (such as Fig. 9 As shown), a conductive joint is provided at the connection point, and the conductors 5 in the cores 1 of the two cable bodies 3 are connected together through the conductive joint. The cable connection device provided in the embodiment of the present invention can also be used alone. In this case, an external interface is provided at the end of the compression sleeve 43 away from the locking sleeve 42, and the conductor 5 in the cable core 1 is connected to the external device through the external interface.

[0033] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8The compression sleeve 43 includes a sleeve body 432 internally fixedly connected to a limiting member 431, the sleeve body 432 is rotatably connected to the locking sleeve 42 and is slidably connected to the crimping chamber body 21 below, the compression head 44 includes a first compression member 441 located in the first crimping area 22, a second compression member 442 located in the second crimping area 23, and a third compression member 443 located in the third crimping area 24, the first compression member 441 and the unified connecting member 251 are staggered in the circumferential direction and the first compression member 441 is symmetrically distributed (such as Figure 6 As shown in the figure, the number of the second pressing members 442 and the third pressing members 443 on each crimping chamber 21 is two and corresponds to the wire core 1 one by one, the second pressing members 442 and the third pressing members 443 on the symmetrical crimping chamber 21 are symmetrically distributed up and down, and the number of the limiting members 431 is several and corresponds to the first pressing member 441, the second pressing member 442, the third pressing member 443 and the unified connecting member 251 respectively, and corresponds to the first pressing member 441, the second pressing member 442, the third pressing member 443 and the unified connecting member 251 The corresponding limiting members 431 have different sizes and different installation positions. The pressing sleeve 43 is fed in the axial direction as the locking sleeve 42 and the annular seat 41 are threadedly locked. The limiting member 431 is wedge-matched with the corresponding first pressing member 441, the second pressing member 442, the third pressing member 443 and the unified connecting member 251, so that the first pressing member 441, the second pressing member 442 and the third pressing member 443 press the wire core 1 and the conductor 5 in the corresponding area, and the filling member 252 deeply squeezes the wound wire core 1. Taking the first pressing member 441 as an example, as shown in FIG. Figure 5 As shown, the first clamping member 441 and the limiting member 431 are both provided with inclined limiting surfaces, which gradually move away from the axis of the crimping bin 21 from right to left. When the compression sleeve 43 moves to the left, the limiting surface of the corresponding limiting member 431 is wedge-joined with the limiting surface of the first clamping member 441 to make the first clamping member 441 move into the crimping bin 21 for clamping. The second clamping member 442, the third clamping member 443 and the unified connecting member 251 are similar. 441 is a plate-like structure and is distributed along the circumference of the crimping chamber body 21. The second pressing member 442 is an arc-shaped structure provided with a wave pressing surface. The third pressing member 443 is an arc-shaped structure. The second pressing member 442 and the third pressing member 443 are both provided with inclined limiting surfaces. The corresponding limiting member 431 fits with the limiting surfaces on the corresponding second pressing member 442 and the third pressing member 443 to move the second pressing member 442 and the third pressing member 443 and perform the pressing work (such as Figure 8 as shown).

[0034] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 A limiting groove 28 is provided on the upper crimping chamber 21, and the limiting groove 28 is used to limit and fix the clamping head 26. Figure 6 As shown, the clamping head 26 includes symmetrically distributed clamping parts 261, on which flexible protrusions 262 are provided. The clamping parts 261 can be deformed. During the buckling process of the crimping bin body 21, the limiting groove 28 automatically limits the clamping head 26, so that the clamping head 26 can further stably clamp the wire core 1 and improve the stability of the wire core 1.

[0035] See also Figure 1 , Figure 3 and Figure 7 The annular seat 41 is provided with a sealing ring 45 and an extrusion ring 46. The left side of the sealing ring 45 is fixedly connected to the annular seat 41. The extrusion ring 46 is slidably connected to the annular seat 41 and cooperates with the sleeve 432 to squeeze the sealing ring 45 under the tightness of the sleeve 432. Figure 5 As shown, during the process of the sleeve 432 being fed to the left along with the threaded connection between the locking sleeve 42 and the annular seat 41, the sleeve 432 will contact the extrusion ring 46 and tighten the sealing ring 45 through the extrusion ring 46, so that the sealing ring 45 and the cable body 3 are tightly connected together, thereby improving the strength of the cable connection and the sealing of the connection. Here, sealant can be applied at the connection between the annular seat 41 and the cable body 3 as needed to further improve the overall sealing.

[0036] A connection operation method of a cable connection device is completed by using a cable connection device, and includes the following steps: S1: passing the wire core 1 through an annular seat 41 and placing the corresponding end of the cable body 3 in the annular seat 41.

[0037] S2: Based on S1, the wire core 1 is firstly wound together with the part corresponding to the crimping zone 1 22, and placed in the crimping zone 1 22 on the crimping bin body 21 equipped with a clamping head 26, and at the same time, the corresponding filling head 25 is inserted into the wound wire core 1, and then the wire core 1 corresponding to the crimping zone 23 is independently arranged in the crimping zone 23 and automatically clamped by the clamping head 26, and finally the conductor 5 in the wire core 1 is arranged in the crimping zone 3 24.

[0038] S3: On the basis of S2, another crimping bin body 21 is fixedly connected to the crimping bin body 21 equipped with the clamping head 26 .

[0039] S4: On the basis of S3, the locking sleeve 42 and the annular seat 41 are fixedly connected together.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; 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 the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable connection device, characterized in that: The invention comprises an inner connector (2) for fixing a wire core (1), wherein the inner connector (2) comprises a symmetrically distributed crimping chamber (21), wherein a first crimping area (22), a second crimping area (23) and a third crimping area (24) are sequentially arranged in the crimping chamber (21), and the wire core (1) passes through the first crimping area (22), the second crimping area (23) and the third crimping area (24) sequentially; The wire cores (1) in the first crimping zone (22) are in a tangled state, the wire cores (1) in the second crimping zone (23) are in an independent state, and the wire cores (1) in the third crimping zone (24) are in a conductor (5) exposed state, and the symmetrical crimping chamber (21) is pressed and fixed to preliminarily tighten and fix the tangled wire cores (1), the independent wire cores (1) and the conductor (5) exposed state; A filling head (25) is provided in the first crimping area (22) and is slidably connected to the crimping chamber (21). One end of the filling head (25) is inserted into the wound wire core (1) and the end is in a conical structure. A clamping head (26) for preliminarily fixing the wire core (1) is provided in one of the second crimping areas (23). An external connector (4) is used to fix the cable body (3) and reinforce the connection state of the internal connector (2), wherein the external connector (4) comprises an annular seat (41) fixedly connected to one of the crimping chamber bodies (21), a locking sleeve (42) threadedly connected to the annular seat (41), and a compression sleeve (43) rotatably connected to the locking sleeve (42); A clamping head (44) passes through and is slidably connected to the crimping chamber body (21); the clamping sleeve (43) is fed in the axial direction as the locking sleeve (42) and the annular seat (41) are threadedly locked, and in the process, the filling head (25) and the clamping head (44) are limited, so that the clamping head (44) clamps and fixes the wire cores (1) in the crimping zone 1 (22) and the crimping zone 2 (23) and the conductors (5) in the crimping zone 3 (24), and the filling head (25) penetrates into the wire cores (1) in a crimping state to perform secondary filling and clamping.

2. A cable connection device according to claim 1, characterized in that: The compression sleeve (43) comprises a sleeve body (432) with a limiting member (431) arranged inside, the compression head (44) comprises a first compression member (441) located in the first compression zone (22), a second compression member (442) located in the second compression zone (23), and a third compression member (443) located in the third compression zone (24), the filling head (25) comprises a unified connecting member (251) and a plurality of filling members (252), the limiting members (431) are in plurality and are respectively connected to the first compression member (441), the second compression member (442), and the third compression member ( The locking sleeve (42) and the annular seat (41) are threadedly locked and the clamping sleeve (43) is fed in the axial direction. The limiting member (431) is wedge-matched with the corresponding first clamping member (441), the second clamping member (442), the third clamping member (443) and the unified connecting member (251), so that the first clamping member (441), the second clamping member (442), the third clamping member (443) compress the wire core (1) and the conductor (5) in the corresponding area, and the filling member (252) is deeply wound into the wire core (1).

3. A cable connection device according to claim 2, characterized in that: The pressing surface of the first pressing piece (441) is planar, the pressing surface of the second pressing piece (442) is wavy and arc-shaped as a whole, the pressing surface of the third pressing piece (443) is arc-shaped, and there are a plurality of first pressing pieces (441) distributed along the circumference of the crimping chamber (21).

4. A cable connection device according to claim 1, characterized in that: The number of the wire cores (1) is two, and a placement groove (27) corresponding to the wire cores (1) is provided in the second crimping area (23), and the clamping head (26) corresponds to the placement groove (27) one by one, and the clamping head (26) includes symmetrically distributed clamping parts (261), and the clamping parts (261) are provided with flexible protrusions (262), and the clamping parts (261) can be deformed. A limiting groove (28) is provided on the crimping bin body (21) that is not connected to the clamping head (26), and the limiting groove (28) is used to limit and fix the clamping head (26).

5. A cable connection device according to claim 1, characterized in that: The annular seat (41) is provided with a sealing ring (45) and an extrusion ring (46); the left side surface of the sealing ring (45) is fixedly connected to the annular seat (41); the extrusion ring (46) is slidably connected to the annular seat (41) and cooperates with the sleeve body (432) to squeeze the sealing ring (45) under the tight contact of the sleeve body (432).

6. A cable connection device according to claim 1 or 4, characterized in that: The crimping third area (24) is provided with through slots (29) corresponding to the conductors (5) one by one, and after the conductors (5) pass through the through slots (29), the portion of the conductors (5) outside the through slots (29) is directly removed.

7. A cable connection device according to claim 1, characterized in that: The symmetrical crimping bin body (21) is hinged on one side and buckled on the other side.

8. A method for connecting a cable connection device, which is accomplished by using the cable connection device according to claim 1, characterized in that: The following steps are involved: S1: Pass the wire core (1) through the annular seat (41) and place the corresponding end of the cable body (3) in the annular seat (41); S2: Based on S1, the wire core (1) and the portion corresponding to the first crimping zone (22) are firstly wound together and placed in the first crimping zone (22) on the crimping chamber (21) equipped with a clamping head (26), and at the same time, the corresponding filling head (25) is inserted into the wound wire core (1), and then the wire core (1) corresponding to the second crimping zone (23) is independently arranged in the second crimping zone (23) and automatically clamped by the clamping head (26), and finally the conductor (5) in the wire core (1) is arranged in the third crimping zone (24); S3: On the basis of S2, another crimping bin body (21) is fixedly connected to the crimping bin body (21) equipped with the clamping head (26); S4: On the basis of S3, the locking sleeve (42) and the annular seat (41) are fixedly connected together.

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