Electrical engineering connector

Abstract

The invention relates to the technical field of electrical engineering, in particular to an electrical engineering connector which comprises a main shell, a fixed shell and a winding assembly. The fixed shell and the main shell are detachably, coaxially and slidably connected, and the fixed shell is used for fixing a conductor in a shielding cable. The winding assembly is arranged in the main shell and comprises a first winding ring and a second winding ring which are coaxially arranged on the outer side of the shielding cable in a spaced mode, an annular space is jointly formed between the first winding ring and the second winding ring, and the first winding ring and the second winding ring jointly form an annular crankshaft structure. The end part of a shielding layer of the shielding cable is fixed in the annular space, the first winding ring and the second winding ring slide along the axis direction of the shielding cable, and meanwhile, the first winding ring and the second winding ring overturn around the central axis of the cross section of the crankshaft structure; the shielding layer of the shielding cable is helically wound around the outer peripheral surfaces of the first winding ring and the second winding ring. Therefore, the structural stability of the shielding layer is effectively maintained, and the stability of the shielding effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical engineering, in particular to an electrical engineering connector. BACKGROUND

[0002] In the field of electrical engineering, shielded cables are widely used in various electronic devices, communication systems, medical instruments and industrial control devices as key components for suppressing electromagnetic interference. Shielded cables are usually composed of an internal conductor, an insulating layer, a shielding layer and a protective layer, among which the shielding layer is usually a metal braid or aluminum foil, which plays a dual role of blocking external electromagnetic interference and preventing internal signal leakage.

[0003] In the prior art, when the shielded cable is connected to the device through the connector, the shielding layer is usually fixed by the method of turning and crimping. This method is to fold the shielding layer and clamp it tightly. However, the original tightly arranged braid structure of the shielding layer is damaged during the clamping process, causing the braid to loosen and deform, resulting in a decrease in shielding effect and clamping stability.

[0004] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the present application, and should not be regarded as acknowledging or implying in any form that this information constitutes prior art known to those skilled in the art. SUMMARY

[0005] Therefore, it is necessary to provide an electrical engineering connector to solve the problem of loose deformation of the shielding layer during the folding and fixing process.

[0006] The above-mentioned purpose is achieved by the following technical scheme: An electrical engineering connector, comprising: a main housing, a fixed housing is arranged on the main housing, the fixed housing is detachably connected with the main housing coaxially and slidingly, and the fixed housing is used for fixing a conductor in a shielded cable; a winding assembly, the winding assembly comprises a first winding ring and a second winding ring, the first winding ring and the second winding ring are arranged coaxially and spaced apart on the outside of the shielded cable, and the first winding ring and the second winding ring jointly form an annular space and an annular crankshaft structure; the end of the shielding layer of the shielded cable is fixed in the annular space, the first winding ring and the second winding ring slide along the axial direction of the shielded cable, and at the same time, the first winding ring and the second winding ring can be turned around the center axis of the cross section of the crankshaft structure, so that the shielding layer of the shielded cable is wound on the outer circumferential surface of the first winding ring and the second winding ring.

[0007] Further, a rigid block is arranged in the annular space, the rigid block is fixedly connected with the first winding ring, and the rigid block is used for fixing the end of the shielding layer in the annular space.

[0008] Further, the hardness of the inner layer material of the first winding ring is greater than the hardness of the outer layer material of the first winding ring, and the hardness of the inner layer material of the second winding ring is greater than the hardness of the outer layer material of the second winding ring.

[0009] Further, the first compression mechanism is further arranged, and when the shielded cable is subjected to a pulling force along the axis direction of the shielded cable, the first compression mechanism is used for slowing down the speed of the first winding ring and the second winding ring in the reverse direction of the center axis of the cross section of the crankshaft structure to release the shielding layer.

[0010] Further, the first compression mechanism comprises a first abutting ring, a pushing ring and a pushing unit, the first abutting ring and the pushing ring are coaxially arranged on the outside of the shielded cable, the first abutting ring and the pushing ring are axially slidably connected with the inner wall of the main shell, and the pushing ring is unidirectionally slidably connected with the main shell; when the shielded cable is subjected to a pulling force along the axis direction of the shielded cable, the pushing unit pushes the pushing ring to slide along the axis direction of the shielded cable in the opposite direction of the pulling force; the sliding of the pushing ring drives the first abutting ring to slide in the opposite direction of the pulling force.

[0011] Further, the pushing unit comprises a sealing ring and a pushing plate, the sealing ring is coaxially arranged on the outside of the shielded cable, and the pushing plate is in abutment with the pushing ring; when the shielded cable is subjected to a pulling force along the axis direction of the shielded cable, the sealing ring slides along the axis direction of the shielded cable in the same direction of the pulling force, so that the pushing plate rotates around the radial direction of the shielded cable, thereby pushing the pushing ring to slide along the axis direction of the shielded cable in the opposite direction of the pulling force.

[0012] Further, the sealing ring comprises a rigid portion and a flexible portion, the rigid portion and the flexible portion are fixedly connected, and the rigid portion is movably connected with the pushing plate; when the shielded cable is subjected to a pulling force along the axis direction of the shielded cable, the rigid portion slides along the axis direction of the shielded cable in the same direction of the pulling force and drives the pushing plate to rotate; and the flexible portion is used for reducing the abrasion of the shielded cable caused by the sliding of the flexible portion along the axis direction of the shielded cable.

[0013] Further, the first compression mechanism further comprises a spring, one end of the spring is fixedly connected with the first abutting ring, the other end of the spring is fixedly connected with the pushing ring, and the spring is used for buffering the sliding of the pushing ring.

[0014] Furthermore, it also includes a clamping housing and a mounting ring. The clamping housing is coaxially and movably connected to the main housing, and the mounting ring is coaxially disposed between the clamping housing and the flexible part. Rotating the clamping housing causes it to slide along the axial direction of the shielded cable, thereby causing the mounting ring to push the flexible part to slide along the radial direction of the shielded cable.

[0015] Furthermore, it also includes a second pressing mechanism, which includes a second abutting ring and a rotating ring. The second abutting ring is axially slidably connected to the inner wall of the main housing, and the rotating ring is coaxially movably connected to the main housing. The rotating ring is connected to the fixed housing, and the fixed housing abuts against the second abutting ring. Rotating the rotating ring causes the fixed housing to push the second abutting ring to slide along the axial direction of the shielded cable.

[0016] The beneficial effects of this invention are: This invention provides an electrical engineering connector, including a main housing, a fixed housing, and a winding assembly. The fixed housing is detachably and coaxially slidably connected to the main housing, and is used to fix the conductor in the shielded cable. The main housing contains a winding assembly, which includes a first winding ring and a second winding ring coaxially spaced on the outside of the shielded cable, forming an annular space and a crankshaft structure. The end of the shielding layer of the shielded cable is fixed within the annular space. The first and second winding rings slide along the axial direction of the shielded cable, and can simultaneously rotate around the central axis of the crankshaft structure's cross-section, causing the shielding layer of the shielded cable to spirally wind around the outer circumference of the first and second winding rings, avoiding the loosening and deformation of the braided mesh caused by traditional folding. Therefore, the structural stability of the shielding layer is effectively maintained, improving the stability of the shielding effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an electrical engineering connector provided in an embodiment of the present invention; Figure 2 for Figure 1 An explosion diagram; Figure 3 for Figure 1 Side view; Figure 4 for Figure 3 A cross-sectional view of the first state along section AA; Figure 5 for Figure 3 A second-state sectional view along section AA; Figure 6 for Figure 2 Diagram of the connector before shielding treatment in China's electrical engineering; Figure 7 Fig. 6 is a partial enlarged view of B of Fig. 5; Figure 2 Fig. 7 is a partial enlarged view of C of Fig. 5; Figure 8 Fig. 8 is a partial enlarged view of D of Fig. 5. Figure 4 Fig. 9 is a partial enlarged view of E of Fig. 5. Figure 9 Fig. 10 is a partial enlarged view of F of Fig. 5. Figure 5 Fig. 11 is a partial enlarged view of G of Fig. 5. Figure 10 Fig. 12 is a partial enlarged view of H of Fig. 5. Figure 8 Fig. 13 is a partial enlarged view of I of Fig. 5.

[0018] Wherein: 100, shielded cable; 101, conductor; 102, shielding layer; 201, main housing; 202, fixed housing; 203, compression housing; 204, fixed hole; 210, winding assembly; 211, first winding ring; 212, second winding ring; 213, rigid block; 221, first abutting ring; 222, push ring; 223, push plate; 224, spring; 230, sealing ring; 231, flexible part; 232, rigid part; 240, mounting ring; 251, rotating ring; 252, second abutting ring. DETAILED DESCRIPTION

[0019] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0020] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "coupling" of the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be 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 is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0022] The following refers to Figures 1 to 10 The electrical engineering connector provided by the embodiment of the present application is described.

[0023] As Figures 1 to 3 shown, the electrical engineering connector provided by the embodiment of the present application is particularly suitable for connecting the shielded cable 100 to conduct current. Specifically, the electrical engineering connector includes a main housing 201 and a fixed housing 202, the fixed housing 202 is detachably connected with the main housing 201 in a coaxial sliding manner, and a plurality of fixing holes 204 are arranged inside the fixed housing 202. The shielded cable 100 includes an outer protective layer, a shielding layer 102 and a plurality of conductors 101, the outer protective layer is arranged outside the shielding layer 102, and the plurality of conductors 101 are arranged inside the shielding layer 102.

[0024] Further, the electrical engineering connector further includes a winding assembly 210, the winding assembly 210 is arranged inside the main housing 201, and the winding assembly 210 is used for winding the shielding layer 102 of the fixed shielded cable 100.

[0025] The winding assembly 210 includes a first winding ring 211 and a second winding ring 212, the first winding ring 211 and the second winding ring 212 are coaxially and spaced apart arranged outside the shielded cable 100, and the first winding ring 211 and the second winding ring 212 jointly form an annular space. Specifically, the first winding ring 211 and the second winding ring 212 jointly form an annular crank structure, the first winding ring 211 and the second winding ring 212 can slide along the axial direction of the shielded cable 100, and at the same time, the first winding ring 211 and the second winding ring 212 can be flipped around the center axis of the cross section of the crank structure formed by themselves.

[0026] Specifically, when fixing the shielding layer 102, first, the outer protective layer of the shielded cable 100 is stripped to expose the inner shielding layer 102. The exposed end of the shielding layer 102 is fixed in the annular space, and the operator applies a force to the first winding ring 211 and the second winding ring 212 along the axial direction of the shielded cable 100 downward, that is Figure 7In the up-down direction, the first winding ring 211 and the second winding ring 212 drive the exposed shielding layer 102 to move downward along the axial direction of the shielding cable 100, so that the exposed shielding layer 102 gradually separates from the internal conductor 101. At the same time, the first winding ring 211 and the second winding ring 212 are flipped along the central axis of the cross section of the crank structure formed by themselves during the sliding process, so that the shielding layer 102 separated from the conductor 101 is spirally wound on the outer circumferential surface of the first winding ring 211 and the second winding ring 212.

[0027] In this process, the shielding layer 102 only moves downward along the axial direction of the shielding cable 100, avoiding the deformation of the structure caused by repeated folding up and down in the existing shielding layer 102 fixing technology. At the same time, the shielding layer 102 is spirally wound on the outer circumferential surface of the first winding ring 211 and the second winding ring 212, effectively controlling the bending radius of the shielding layer 102, avoiding the problem of excessive bending angle of the shielding layer 102 causing local stress concentration, leading to the problem of the shielding layer 102 breaking and losing the shielding effect, and maintaining the original structure of the shielding layer 102 to the greatest extent.

[0028] After the shielding layer 102 is wound, the conductor 101 inside the shielding layer 102 is naturally exposed, and the fixing shell 202 is provided with a plurality of fixing holes 204. At this time, the conductors 101 are fixed in the corresponding fixing holes 204, and then the fixing shell 202 is slid downward along the axial direction of the shielding cable 100 into the main shell 201 to complete the final fixing, that is, Figure 4 the up-down direction.

[0029] In one embodiment, a rigid block 213 is arranged in the annular space. The rigid block 213 is fixedly connected with the first winding ring 211, and the rigid block 213 is used to fix the end of the shielding layer 102 in the annular space. Specifically, a groove is formed on the second winding ring 212, and when winding the shielding layer 102, the exposed end of the shielding layer 102 is first placed on the inner wall of the second winding ring 212 constituting the annular space, and then by applying downward pressure to the first winding ring 211, that is, Figure 10 the up-down direction, the rigid block 213 presses the shielding layer 102 into the groove, so that the shielding layer 102 tightly fits the groove wall and the outer circumferential wall of the rigid block 213, until the inner wall of the first winding ring 211 and the inner wall of the second winding ring 212 constituting the annular space press the shielding layer 102 tightly, and finally the end of the shielding layer 102 separated from the conductor 101 is stably fixed in the annular space.

[0030] In one embodiment, the inner layer material of the first winding ring 211 has a greater hardness than the outer layer material of the first winding ring 211, and the inner layer material of the second winding ring 212 has a greater hardness than the outer layer material of the second winding ring 212. Specifically, when the first winding ring 211 and the second winding ring 212 are wound around the shielding layer 102, because the outer layer material of the first winding ring 211 and the outer layer material of the second winding ring 212 have a relatively soft hardness, the outer circumferential surface of the first winding ring 211 and the second winding ring 212 can be self-adaptively deformed according to the contact pressure with the shielding layer 102, so as to form a contact interface that highly matches the profile of the shielding layer 102. Therefore, the uniformity of the tension distribution of the first winding ring 211 and the second winding ring 212 during the winding process is ensured, so that the shielding layer 102 can be stably wound in a spiral manner, and the friction of the shielding layer 102 caused by the material with a relatively large hardness is reduced, the wear of the shielding layer 102 is effectively reduced, and the original structure of the shielding layer 102 is further maintained.

[0031] In one embodiment, the electrical engineering connector further comprises a first pressing mechanism. When the shielding cable 100 is subjected to a downward pulling force along the axial direction of the shielding cable 100, the first pressing mechanism is used to slow down the speed of the first winding ring 211 and the second winding ring 212 in reverse rotation around the central axis of the cross section of the crank structure to release the shielding layer 102, and simultaneously increase the pressing force on the shielding layer 102. Figure 5

[0032] In one embodiment, the first pressing mechanism comprises a first abutting ring 221, a pushing ring 222, and a pushing unit. The first abutting ring 221 and the pushing ring 222 are coaxially arranged outside the shielding cable 100, and are axially slidably connected with the inner wall of the main housing 201. The pushing ring 222 is unidirectionally slidably connected with the main housing 201. The pushing unit comprises a sealing ring 230 and a pushing plate 223. The sealing ring 230 is coaxially arranged outside the shielding cable 100, and the pushing plate 223 abuts against the pushing ring 222.

[0033] Specifically, when the shielding cable 100 is subjected to a downward pulling force along the axial direction of the shielding cable 100, i.e., the upward and downward direction in the Figure 5 central axis of the cross section of the crank structure, so that the shielding layer 102 on the first winding ring 211 and the second winding ring 212 is released. Because the sealing ring 230 is in close contact with the outer wall of the shielding cable 100, the downward movement trend of the shielding cable 100 is synchronously transmitted to the sealing ring 230.

[0034] ​Further, the sealing ring 230 comprises a rigid part 232 and a flexible part 231, the flexible part 231 and the rigid part 232 are fixedly connected, and the rigid part 232 is movably connected with the push plate 223. Therefore, the rigid part 232 slides downward to drive the push plate 223 to rotate towards the direction close to the push ring 222, so as to push the push ring 222 to slide upward.

[0035] Further, the first pressing mechanism further comprises a spring 224, one end of the spring 224 is fixedly connected with the first abutting ring 221, and the other end of the spring 224 is fixedly connected with the push ring 222. The upward sliding of the push ring 222 causes the spring 224 to be compressed, and then drives the first abutting ring 221 to slide upward along the axial direction of the shielded cable 100, so as to cause the first abutting ring 221 to exert a pressing force on the shielding layer 102 wound on the first winding ring 211 and the second winding ring 212. Therefore, the gap between the adjacent shielding layers 102 wound on the first winding ring 211 and the second winding ring 212 is reduced, so as to press the shielding layer 102 wound on the first winding ring 211 and the second winding ring 212, and further buffer the speed of the first winding ring 211 and the second winding ring 212 releasing the shielding layer 102 when they rotate reversely around the central axis of the cross section of the crank structure, so as to avoid the shielding layer 102 from being broken due to too fast release. At the same time, the one-way sliding connection of the push ring 222 with the main shell 201 effectively avoids the pull damage of the shielding layer 102 when the push ring 222 slides reversely along the axial direction of the shielded cable 100, so as to ensure the structural integrity of the shielding layer 102. It is worth noting that the flexible part 231 is arranged to reduce the abrasion of the shielded cable 100 caused by the sliding of the flexible part 231 along the axial direction of the shielded cable 100, and further ensure the structural integrity of the shielding layer 102.

[0036] It can be understood that the upward sliding of the push ring 222 compresses the spring 224, so as to slow down the sliding speed of the push ring 222, and further weaken the upward force on the first abutting ring 221, so as to avoid the first abutting ring 221 from sliding too fast to exert a large pressing force on the shielding layer 102. At the same time, since the pressing force of the first abutting ring 221 is controlled, the first winding ring 211 and the second winding ring 212 will not be subjected to a large resistance when they rotate reversely around the central axis of the cross section of the crank structure to release the shielding layer 102, so as to effectively prevent the shielding layer 102 from being damaged due to pulling.

[0037] In one of the embodiments, the electrical engineering connector further comprises a compression housing 203 and a mounting ring 240, the compression housing 203 is coaxially movably connected with the main housing 201 by screwing, and the mounting ring 240 is coaxially arranged between the compression housing 203 and the flexible part 231. Specifically, the operator rotates the compression housing 203 around the axial direction of the shielded cable 100, because the compression housing 203 is screwed with the main housing 201, so that the compression housing 203 slides upward along the axial direction of the shielded cable 100, that is, the up-down direction in the figure Figure 5 . Because the end of the compression housing 203 away from the fixed housing 202 is a tapered structure, when the compression housing 203 slides upward along the axial direction of the shielded cable 100, the tapered structure pushes the mounting ring 240 to slide along the radial direction of the shielded cable 100 towards the shielded cable 100. Because the mounting ring 240 abuts against the flexible part 231, and in turn drives the flexible part 231 to move towards the shielded cable 100 to produce adaptive deformation, which enhances the close fit with the outer wall of the shielded cable 100, thereby playing a sealing role to prevent external impurities from entering the inside of the main housing 201.

[0038] In one of the embodiments, the electrical engineering connector further comprises a second compression mechanism, the second compression mechanism comprises a second abutting ring 252 and a rotating ring 251, the second abutting ring 252 is axially movably connected with the inner wall of the main housing 201, and the rotating ring 251 is coaxially movably connected with the main housing 201 by screwing, the rotating ring 251 is connected with the fixed housing 202, and the fixed housing 202 abuts against the second abutting ring 252. Specifically, the operator first rotates the rotating ring 251 around the axial direction of the shielded cable 100, because the rotating ring 251 is screwed with the main housing 201, so that the rotating ring 251 slides downward along the axial direction of the shielded cable 100, that is, the up-down direction in the figure Figure 5 , which drives the fixed housing 202 to slide downward synchronously, and in turn pushes the second abutting ring 252 to slide downward along the axial direction of the shielded cable 100, so that the second abutting ring 252 extrudes the shielding layer 102 wound on the first winding ring 211 and the second winding ring 212, reduces the gap between the adjacent shielding layers 102 wound on the first winding ring 211 and the second winding ring 212, thereby compressing the shielding layer 102 wound on the first winding ring 211 and the second winding ring 212, and further slowing down the speed of the first winding ring 211 and the second winding ring 212 to release the shielding layer 102 when they rotate reversely around the center axis of the cross section of the crankshaft structure.

[0039] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0040] The above-described embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An electrical engineering connector, characterized in that The utility model relates to a shielding cable winding device, comprising: a main shell, a fixed shell is arranged on the main shell, the fixed shell is coaxially slidably connected with the main shell, and the fixed shell is used for fixing the conductor in the shielding cable; a winding assembly, the winding assembly comprises a first winding ring and a second winding ring, the first winding ring and the second winding ring are coaxially arranged on the outside of the shielding cable, and the first winding ring and the second winding ring jointly form an annular space between the first winding ring and the second winding ring, and the first winding ring and the second winding ring jointly form an annular crank structure; the end of the shielding layer of the shielding cable is fixed in the annular space, the first winding ring and the second winding ring slide along the axial direction of the shielding cable, and the first winding ring and the second winding ring can be turned around the central axis of the cross section of the crank structure, so that the shielding layer of the shielding cable is wound on the outer circumferential surface of the first winding ring and the second winding ring.

2. An electrical engineering connector according to claim 1, characterised in that, A rigid block is arranged in the annular space, the rigid block is fixedly connected with the first winding ring, and the rigid block is used for fixing the end of the shielding layer in the annular space.

3. The electrical engineering connector of claim 1, wherein, The hardness of the inner layer material of the first winding ring is greater than the hardness of the outer layer material of the first winding ring, and the hardness of the inner layer material of the second winding ring is greater than the hardness of the outer layer material of the second winding ring.

4. The electrical engineering connector of claim 1, wherein, Further comprising a first compression mechanism, when the shielding cable is subjected to a pulling force along the axial direction of itself, the first compression mechanism is used for slowing down the speed of the first winding ring and the second winding ring turning around the central axis of the cross section of the crank structure in the opposite direction to release the shielding layer.

5. An electrical engineering connector according to claim 4, characterised in that, The first compression mechanism comprises a first abutting ring, a push ring and a pushing unit, the first abutting ring and the push ring are coaxially arranged on the outside of the shielding cable, the first abutting ring and the push ring are axially slidably connected with the inner wall of the main shell, and the push ring is unidirectionally slidably connected with the main shell; when the shielding cable is subjected to a pulling force along the axial direction of itself, the pushing unit pushes the push ring to slide along the axial direction of the shielding cable towards the opposite direction of the pulling force; the sliding of the push ring drives the first abutting ring to slide towards the opposite direction of the pulling force.

6. An electrical engineering connector according to claim 5, characterised in that, The pushing unit comprises a sealing ring and a pushing plate, the sealing ring is coaxially arranged on the outside of the shielding cable, and the pushing plate abuts against the push ring; when the shielding cable is subjected to a pulling force along the axial direction of itself, the sealing ring slides along the axial direction of the shielding cable towards the same direction of the pulling force, so that the pushing plate rotates around the radial direction of the shielding cable and pushes the push ring to slide along the axial direction of the shielding cable towards the opposite direction of the pulling force.

7. An electrical engineering connector according to claim 6, characterised in that, The sealing ring comprises a rigid part and a flexible part, the rigid part and the flexible part are fixedly connected, and the rigid part is movably connected with the pushing plate; when the shielding cable is subjected to a pulling force along the axial direction of itself, the rigid part slides along the axial direction of the shielding cable towards the same direction of the pulling force and drives the pushing plate to rotate; and the flexible part is used for reducing the abrasion of the shielding cable caused by the sliding of the flexible part along the axial direction of the shielding cable.

8. The electrical engineering connector of claim 5, wherein, The first compression mechanism further comprises a spring, one end of the spring is fixedly connected with the first abutting ring, the other end of the spring is fixedly connected with the push ring, and the spring is used for buffering the sliding of the push ring.

9. The electrical engineering connector of claim 7, wherein, Further comprising a compression shell and a mounting ring, the compression shell is coaxially movably connected with the main shell, and the mounting ring is coaxially arranged between the compression shell and the flexible part; rotating the compression shell makes the compression shell slide along the axial direction of the shielded cable, and then the mounting ring pushes the flexible part to slide along the radial direction of the shielded cable.

10. The electrical engineering connector of claim 1, wherein, Further comprising a second compression mechanism, the second compression mechanism comprises a second abutting ring and a rotating ring, the second abutting ring is axially movably connected with the inner wall of the main shell, the rotating ring is coaxially movably connected with the main shell, the rotating ring is connected with the fixed shell, and the fixed shell abuts against the second abutting ring; rotating the rotating ring makes the fixed shell push the second abutting ring to slide along the axial direction of the shielded cable.

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