Bent line bundle passes through line sealing and fixing assembly, line bundle quick mounting module and electric actuator

Abstract

The utility model discloses a kind of bending wire harness wire passing sealing fixed components, wire harness quick-mounting module and electric actuator;Bending wire harness wire passing sealing fixed components include: wire passing seat, gland and annular sealing pad;Longitudinal through-hole is equipped on wire passing seat, transverse lower half clamping groove is equipped on wire passing seat, and first sealing groove is equipped on wire passing seat lower surface;Gland lower surface is equipped with transverse upper half clamping groove, and annular sealing pad upper portion is housed in first sealing groove, and annular sealing pad lower portion projects wire passing seat setting;Gland and wire passing seat are buckled up and down, and transverse upper half clamping groove, transverse lower half clamping groove, longitudinal through-hole and annular sealing pad inner hole four are commonly composed wire passing channel;Screw joint piece mounting hole is equipped on gland.Compared with prior art, the bending wire harness wire passing sealing fixed components of the utility model can accurately and stably limit wire harness at predetermined bending angle, and disassembly and assembly are convenient, applied to electric actuator, can guarantee effective sealing at wire harness wire passing place.

Description

Technical Field

[0001] This utility model belongs to the field of electric gripper technology, and particularly relates to a wire harness passing through a sealing and fixing assembly, a wire harness quick-installation module, and an electric actuator. Background Technology

[0002] In electric actuators, wiring harnesses are required to achieve functions such as power transmission and signal transmission. These harnesses consist of multiple wires integrated within an insulating jacket. One end of the harness is connected to the inside of the electric actuator, while the other end extends to the outside. The lead-out wiring harness within the electric actuator needs to be reliably secured and sealed to ensure the normal operation and electrical safety of the actuator.

[0003] In the prior art, the lead-out end of the electric actuator is pressed and fixed by a cylindrical annular rubber plug. The lead-out end of the electric actuator passes through the rubber plug and is tightened and fixed by the rubber plug. The rubber plug is snapped onto the housing of the electric actuator.

[0004] The shortcomings of existing technology are that when the wire harness needs to be bent for installation, the rubber plug of the elastic structure has a small limiting force, making it difficult to ensure that the wire harness is accurately positioned at the predetermined bending angle, and it is also difficult to ensure the stability of the wire harness position, thus failing to meet the accuracy and stability requirements of the wire harness bending angle.

[0005] Therefore, it is necessary to provide a new bending wire harness sealing and fixing assembly, a wire harness quick-installation module, and an electric actuator to solve the above-mentioned technical problems. Summary of the Invention

[0006] (a) Technical problems to be solved Based on this, the present invention provides a bending wire harness sealing and fixing component, a wire harness quick-installation module and an electric actuator, which aims to solve the technical problem that the existing solution of sealing and fixing the lead-out wire harness with rubber plugs cannot accurately and stably keep the wire harness at the preset bending angle.

[0007] (II) Technical Solution To solve the above-mentioned technical problems, this utility model proposes a wire harness sealing and fixing assembly, including: a wire guide seat, a pressure cap, and an annular sealing gasket; the wire guide seat has a longitudinal through hole, and the upper surface of the wire guide seat has a recessed transverse lower half groove, one side of the transverse lower half groove penetrates one side wall of the wire guide seat, and the other side of the transverse lower half groove communicates with the longitudinal through hole; the lower surface of the wire guide seat has a recessed first sealing groove opposite to the longitudinal through hole; the lower surface of the pressure cap has... A recessed upper transverse groove is provided at the position directly opposite the lower transverse groove, and one side of the upper transverse groove penetrates one side wall of the pressure cap; the upper part of the annular sealing gasket is received in the first sealing groove, and the lower part of the annular sealing gasket protrudes from the wire guide seat; the pressure cap and the wire guide seat are fastened together, and the upper transverse groove, the lower transverse groove, the longitudinal through hole and the inner hole of the annular sealing gasket together form a wire guide channel; the pressure cap is provided with a first threaded fitting mounting hole that penetrates through it and is used for threaded connectors to pass through.

[0008] Preferably, the wire guide is rectangular in shape, and each of the four corners of the wire guide is provided with a clearance notch; the pressure cover is rectangular in shape, and each of the four corners of the pressure cover is provided with a downwardly protruding connecting post; the shape of the connecting post matches the shape of the clearance notch, and the four connecting posts correspond one-to-one and extend into the four clearance notches; each connecting post is provided with a first screw mounting hole.

[0009] Preferably, the edge of the pressure cap is further provided with a separation and disassembly hole that runs through it and is offset from the lower transverse slot; the number of separation and disassembly holes is two, and the two separation and disassembly holes are respectively provided on two opposite edges of the pressure cap.

[0010] Preferably, the top of the connecting post is recessed to form a screw head receiving groove.

[0011] Preferably, the centers of the four first screw mounting holes are located at the four corners of the same square; the outer contour shape of the projection of the cover on the horizontal plane is a square M1, and the outer contour shape of the projection of the wire guide on the horizontal plane is a square M2 with notches at the four corners. The side lengths of the squares M1 and M2 are equal, and they are aligned vertically.

[0012] Preferably, the upper and lower transverse slots together form a cylindrical outlet hole, the longitudinal through hole is a cylindrical hole, and the inner hole of the annular sealing gasket is a cylindrical hole coaxially arranged with the longitudinal through hole. The axis of the outlet hole and the axis of the longitudinal through hole intersect and the included angle between them is the wire bending angle H, where H = 85°~105°.

[0013] Preferably, the cross-section of the connecting column is square, and the bending angle H of the line is 90°.

[0014] Preferably, both the gland and the wire guide are made of metal.

[0015] This utility model also discloses a quick-connect module for a wire harness, comprising: a multi-core wire harness, an internal connector and a lead-out connector respectively connected to both ends of the multi-core wire harness, and a bending wire harness passing and sealing fixing assembly as described above. The multi-core wire harness passes through the passing channel, and the inner wall of the annular sealing gasket is arranged to seal and surround the outer periphery of the multi-core wire harness. The pressure cap and the passing seat cooperate to press and fix the middle section of the multi-core wire harness. The connecting post and the clearance notch are interference fit or transition fit to achieve a fixed connection between the pressure cap and the passing seat.

[0016] This utility model also discloses an electric actuator, including a housing and a wire harness quick-connect module as described above. The housing has a receiving cavity formed therein, and a printed circuit board is disposed in the receiving cavity. A wire guide device mounting hole is provided through one side wall of the housing and communicates with the receiving cavity. The opening of the wire guide device mounting hole is provided with a recessed second sealing groove, and the lower part of the annular sealing gasket is received in the second sealing groove. The outer side wall of the housing is also provided with a second screw-fit mounting hole surrounding the wire guide device mounting hole and aligned with the first screw-fit mounting hole. The electric actuator also includes a connecting bolt passing through the first screw-fit mounting hole. The connecting bolt includes a bolt head, which is completely received in the bolt head receiving groove. The end of the connecting bolt away from the bolt head extends into and is fixed in the second screw-fit mounting hole to abut and fix the pressure cap to the outer side wall of the housing. The internal connector is plugged into the printed circuit board.

[0017] (III) Beneficial Effects Compared with the prior art, the bending wire harness sealing and fixing component of this utility model can accurately and firmly restrict the wire harness at a predetermined bending angle, and is easy to assemble and disassemble. When applied to electric actuators, it can ensure effective sealing at the wire harness passage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the bending wire harness sealing and fixing assembly of this utility model (including connecting bolts). Figure 2 This is a top view of the bending wire harness sealing and fixing assembly of this utility model; Figure 3 This is a cross-sectional schematic diagram of the bending wire harness sealing and fixing assembly of this utility model; Figure 4 Exploded view of the bending wire harness sealing and fixing assembly of this utility model Figure 1 ; Figure 5 Exploded view of the bending wire harness sealing and fixing assembly of this utility model Figure 2 ; Figure 6 This is a three-dimensional schematic diagram of the wire harness quick-installation module of this utility model; Figure 7 This is an exploded view of the wire harness quick-installation module of this utility model; Figure 8 This is a schematic diagram of the overall structure of the electric actuator of this utility model; Figure 9 This is a partial cross-sectional schematic diagram of the electric actuator of this utility model.

[0020] Explanation of reference numerals in the attached figures: 1000. Electric actuator; 100. Wire harness quick-connect module; 200. Housing; 300. Printed circuit board; 400. Connecting bolts; 101. Bending wire harness sealing and fixing assembly; 102. Multi-core wire harness; 103. Internal connector; 104. Lead-out connector; 1. Cable guide; 2. Cover; 3. Annular sealing gasket; 4. Cable passage; 11. Longitudinal through hole; 12. Lower transverse groove; 13. First sealing groove; 14. Avoidance notch; 21. Horizontal upper half slot; 22. First screw mounting hole; 23. Connecting post; 24. Separation and disassembly hole; 25. Screw head receiving groove; 201. Receiving cavity; 202. Wiring device mounting hole; 203. Second sealing groove; 204. Second screw mounting hole; 401. Bolt head. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] The following is in conjunction with the appendix Figure 1-9 The present invention will further describe the bending wire harness passage sealing and fixing assembly 101, the wire harness quick-connect module 100, and the electric actuator 1000. Since both the wire harness quick-connect module 100 and the electric actuator 1000 include the bending wire harness passage sealing and fixing assembly 101, the descriptions of each topic can be cross-referenced.

[0023] Please refer to this carefully. Figures 1-5 This utility model discloses a wire harness sealing and fixing assembly 101, comprising: a wire guide seat 1, a pressure cap 2, and an annular sealing gasket 3; the wire guide seat 1 has a longitudinal through hole 11 extending through it, and the upper surface of the wire guide seat 1 has a recessed transverse lower half-groove 12, one side of the transverse lower half-groove 12 penetrating one side wall of the wire guide seat 1, and the other side of the transverse lower half-groove 12 communicating with the longitudinal through hole 11; the lower surface of the wire guide seat 1 has a recessed first sealing groove 13 located opposite the longitudinal through hole 11; the lower surface of the pressure cap 2 is located opposite the transverse through hole 11. A recessed upper transverse groove 21 is provided at the position of the lower half groove 12, and one side of the upper transverse groove 21 penetrates one side wall of the pressure cover 2; the upper part of the annular sealing gasket 3 is housed in the first sealing groove 13, and the lower part of the annular sealing gasket 3 protrudes from the wire guide seat 1; the pressure cover 2 and the wire guide seat 1 are fastened together, and the upper transverse groove 21, the lower transverse groove 12, the longitudinal through hole 11 and the inner hole of the annular sealing gasket 3 together form the wire guide channel 4; the pressure cover 2 is provided with a first threaded fastener mounting hole 22 that penetrates through it and is used for threaded fasteners to pass through.

[0024] In this embodiment, the wire passage 4 serves as a constraint channel for the multi-core wire harness 102. The longitudinal through hole 11 and the transverse slots (upper transverse slot 21 and lower transverse slot 12) are arranged longitudinally and transversely, respectively. That is, the wire passage 4 is bent as a whole, which can meet the bending arrangement requirements of the multi-core wire harness 102. The first sealing groove 13 is used to position and accommodate the annular sealing gasket 3.

[0025] In use, first insert the annular sealing gasket 3 into the first sealing groove 13, then pass the multi-core wire harness 102 through the inner hole of the annular sealing gasket 3 and the longitudinal through hole 11 from bottom to top, bend the upper section of the multi-core wire harness 102 and press it into the lower transverse slot 12, then fasten the pressure cover 2 onto the wire guide seat 1, then extend the multi-core wire harness 102 into and connect it to the inside of the component to be fixed (housing 200), and use the connecting bolt 400 to pass through the first screw mounting hole 22 and lock the pressure cover 2 to the outer wall of the component to be fixed.

[0026] Compared with the prior art, the bending wire harness sealing and fixing assembly 101 of this utility model has the following beneficial effects.

[0027] (1) Easy to assemble and disassemble, and can achieve stable fixation of bent wire harnesses. The wire guide 1 and the pressure cover 2 in this utility model are separate structures that can be separated from top to bottom. With this structure, it is convenient to install the multi-core wire harness 102 on the one hand, and convenient to press and fix the pressure cover 2 on the other hand. After the pressure cover 2 is threadedly connected to the part to be fixed, it presses and fixes the wire guide 1 at the same time, which can ensure the stability of the pressure cover 2 and the wire guide 1 after installation, thus ensuring that the multi-core wire harness 102 is always accurately and stably constrained in the wire passage 4. In addition, during subsequent maintenance, the connecting bolt 400 can be removed, the wire guide 1 and the pressure cover 2 can be separated, and the parts can be maintained or replaced, which has the advantage of convenient assembly and disassembly.

[0028] (2) Applied to electric actuators, it can ensure effective sealing at the wire harness passage. In this utility model, the annular sealing gasket 3 is located at the bottom of the wire guide 1. When applied to an electric actuator, since the bottom of the wire guide 1 is in direct contact with the outer wall of the component to be fixed (housing 200), the annular sealing gasket 3 has two sealing effects: on the one hand, the annular sealing gasket 3 can seal the gap between the wire guide 1 and the multi-core wire harness 102, preventing external moisture from entering the receiving cavity 201 of the housing 200 through the transverse grooves (upper transverse groove 21 and lower transverse groove 12); on the other hand, the annular sealing gasket 3 can seal the gap between the junction of the wire guide 1 and the outer wall of the housing 200, preventing external moisture from entering the receiving cavity 201 of the housing 200 through this gap. This ensures effective sealing.

[0029] It should be noted that in this embodiment, directional terms such as "up" and "down" are all referenced. Figure 3 The orientation indicated is used only to describe the structure of the bent wire harness sealing and fixing component 101 and does not constitute a limitation on its structure. In actual use, the installation orientation of this component can be flexibly adjusted according to requirements, and other placement or installation solutions are still within the protection scope of this utility model.

[0030] According to a specific embodiment of this utility model, the wire guide 1 is rectangular in shape, and each of the four corners of the wire guide 1 is provided with a clearance notch 14; the pressure cover 2 is rectangular in shape, and each of the four corners of the pressure cover 2 is provided with a downward protruding connecting post 23; the shape of the connecting post 23 matches the shape of the clearance notch 14, and the four connecting posts 23 correspond one-to-one and extend into the four clearance notches 14; each connecting post 23 is provided with a first screw mounting hole 22.

[0031] In this embodiment, the connecting posts 23 serve two purposes: firstly, the connecting posts 23 located at the four corners can restrict the lateral displacement of the cable guide 1, thereby improving the stability after the pressure cap 2 and the cable guide 1 are engaged; secondly, the connecting posts 23 also form the first screw mounting holes 22, thus ensuring that there is no gap between the pressure cap 2 and the cable guide 1 after they are engaged, making full use of the space and structure, resulting in a high degree of structural integration. Furthermore, after the pressure cap 2 and the cable guide 1 are engaged, the four connecting posts 23 fit precisely into the corresponding clearance notches 14, ensuring that the overall structure formed after the pressure cap 2 and the cable guide 1 are engaged remains a rectangle with a flat outer surface, exhibiting good regularity.

[0032] According to a specific embodiment of the present invention, the edge of the pressure cap 2 is also provided with a separation and disassembly hole 24 that runs through it and is offset from the horizontal lower half slot 12; the number of separation and disassembly holes 24 is 2, and the 2 separation and disassembly holes 24 are respectively provided on two opposite edges of the pressure cap 2.

[0033] In this embodiment, the separation and disassembly hole 24 is used to improve the convenience of disassembly and assembly. If the cable guide 1 and the pressure cap 2 are tightly fitted, it is difficult to separate them by hand. By inserting a tool into the separation and disassembly hole 24, the cable guide 1 can be quickly knocked out. The provision of two separation and disassembly holes 24 facilitates the application of balanced force to the cable guide 1 by the tool, improving separation efficiency. The separation and disassembly holes 24 are staggered from the lower transverse slot 12, ensuring that the separation and disassembly holes 24 do not penetrate the lower transverse slot 12. This avoids damaging the sealing of the cable passage 4 and improves the mechanical properties of the pressure cap 2.

[0034] According to a specific embodiment of this utility model, the top of the connecting column 23 is lowered to form a screw head receiving groove 25.

[0035] In this embodiment, the screw head receiving groove 25 is used to receive the bolt head 401, so that after the bent wire harness passing through the sealing and fixing assembly 101 of this utility model is installed on the part to be fixed, the overall structure can still be a rectangle with a flat outer surface. And since the lower part of the connecting post 23 extends into the avoidance notch 14, it has sufficient length to meet the strength requirements of passing through the connecting bolt 400.

[0036] According to a specific embodiment of this utility model, the centers of the four first screw mounting holes 22 are respectively located at the four corners of the same square; the outer contour shape of the projection of the pressure cap 2 on the horizontal plane is a square M1 ( Figure 2 (Red frame in the middle) The outer contour of the projection of the line holder 1 onto the horizontal plane is a square M2 with notches at the four corners. Figure 2 (with a blue border in the middle), squares M1 and M2 have equal side lengths and are aligned vertically.

[0037] In this embodiment, since the centers of the four first screw mounting holes 22 are located at the four corners of the same square, the bending wire harness sealing and fixing assembly 101 of this utility model has four installation directions, with adjacent installation directions differing by 90°. In specific use, the orientation of the transverse slot can be adjusted by rotating the wire guide seat 1 as needed, thereby adjusting the orientation of the lead-out end of the multi-core wire harness 102, greatly expanding the applicability of the bending wire harness sealing and fixing assembly 101 of this utility model. Setting the pressure cap 2 and the wire guide seat 1 as a square aligned vertically can further improve the compactness of the structure and reduce the volume of the bending wire harness sealing and fixing assembly 101.

[0038] According to a specific embodiment of this utility model, the upper transverse slot 21 and the lower transverse slot 12 together form a cylindrical outlet hole, the longitudinal through hole 11 is a cylindrical hole, and the inner hole of the annular sealing gasket 3 is a cylindrical hole coaxially arranged with the longitudinal through hole 11. The axis of the outlet hole and the axis of the longitudinal through hole 11 intersect and the included angle between them is the wire bending angle H, where H = 85°~105°.

[0039] More specifically, the cross-section of the connecting column 23 is square, and the bending angle H of the line is 90°.

[0040] In this embodiment, the bending angle H is the bending angle of the multi-core wire harness 102. In specific implementations, the bending angle of the multi-core wire harness 102 can be set according to requirements. The bending angle is preferably 90°, which ensures that the outlet hole is horizontally positioned, minimizing the thickness of the wire guide 1 and the pressure cap 2, resulting in the smallest possible volume. When the bending angle is greater than or less than 90°, the outlet hole is inclined, requiring an appropriate increase in the thickness of the wire guide 1 and the pressure cap 2.

[0041] According to a specific embodiment of this utility model, both the pressure cap 2 and the wire guide 1 are made of metal.

[0042] In this embodiment, both the pressure cap 2 and the wire guide 1 are made of metal materials, which can minimize the volume of the pressure cap 2 and the wire guide 1 while ensuring that the strength of the pressure cap 2 and the wire guide 1 meets the requirements.

[0043] Please refer to this carefully. Figures 6-7 This utility model also discloses a quick-connect module 100 for a wire harness, including: a multi-core wire harness 102, an internal connector 103 and a lead-out connector 104 respectively connected to both ends of the multi-core wire harness 102, and a bending wire harness passing sealing and fixing assembly 101 as described in the above embodiment. The multi-core wire harness 102 passes through the passing channel 4, and the inner wall of the annular sealing gasket 3 is arranged to seal and surround the outer periphery of the multi-core wire harness 102. The pressure cap 2 and the passing seat 1 cooperate to press and fix the middle section of the multi-core wire harness 102. The connecting post 23 and the clearance notch 14 are interference fit or transition fit to realize the fixed connection between the pressure cap 2 and the passing seat 1.

[0044] In this embodiment, the internal connector 103 is used to directly connect to the printed circuit board 300 inside the electric actuator, and the lead-out connector 104 is used to connect to the external drive control module. Both are direct plug-in structures, which can achieve quick docking.

[0045] When assembling the quick-connect module 100, leave one connector (internal connector 103 or lead-out connector 104) uninstalled so that the multi-core wire harness 102 can pass through the wire passage 4. After the multi-core wire harness 102 is inserted, the annular sealing gasket 3 hugs the outer periphery of the multi-core wire harness 102. Then, snap the cover 2 and the wire pass 1 together. By using the tight fit between the connecting post 23 and the clearance notch 14, the cover 2 and the wire pass 1 can be quickly and securely locked together. Then, install the remaining uninstalled connectors. In this way, the multi-core wire harness 102, the internal connector 103, the lead-out connector 104, the annular sealing gasket 3, the cover 2, and the wire pass 1 form a stable pre-assembled body.

[0046] As can be seen from the above, the wire harness quick-installation module 100 of this utility model can be assembled, and after assembly, it can form a stable pre-installed main body, which is convenient for quick assembly onto the component to be fixed.

[0047] Please refer to this carefully. Figures 8-9 This utility model also discloses an electric actuator 1000, including a housing 200 and a wire harness quick-install module 100 as described in the above embodiments. The housing 200 has a receiving cavity 201 formed therein, and a printed circuit board 300 is disposed in the receiving cavity 201. A wire passing device mounting hole 202 is provided through it and communicating with the receiving cavity 201 on one side wall of the housing 200. The opening of the wire passing device mounting hole 202 is provided with a recessed second sealing groove 203, and the lower part of the annular sealing gasket 3 is received in the second sealing groove 203. The outer side wall of the housing 200 is also provided with a surrounding wire passing device mounting hole 202. The wire device mounting hole 202 is provided and the second screw mounting hole 204 is provided and aligned with the first screw mounting hole 22. The electric actuator 1000 also includes a connecting bolt 400 that passes through the first screw mounting hole 22. The connecting bolt 400 includes a bolt head 401, which is completely received in the screw head receiving groove 25. The end of the connecting bolt 400 away from the bolt head 401 extends into and is fixed in the second screw mounting hole 204 to abut and fix the pressure cover 2 to the outer wall of the housing 200. The internal connector 103 is plugged into the printed circuit board 300.

[0048] In this embodiment, the cable guide mounting hole 202 is used for the internal connector 103 to extend into. During installation, the housing 200 can be a split structure to facilitate manual insertion of the internal connector 103 onto the printed circuit board 300. During assembly, the wire harness quick-connect module 100 is taken, and the internal connector 103 in the wire harness quick-connect module 100 is inserted into the printed circuit board 300. The annular sealing gasket 3 is aligned and pressed into the second sealing groove 203. The first screw mounting hole 22 is aligned with the second screw mounting hole 204. The pressure cap 2 is then abutted and fixed to the outer wall of the housing 200 using connecting bolts 400, thus completing the installation.

[0049] The quick-installation module 100 for wiring harnesses is easy to install and effectively prevents water from entering the receiving cavity 201 through the wiring device mounting hole 202 or the outlet hole, thus avoiding any impact on the sealing performance of the electric actuator 1000 due to the multi-core wiring harness 102 passing through. This helps to improve the protection level of the electric actuator 1000.

[0050] It should be noted that the electric actuator 1000 uses a bending wire harness passing through sealing and fixing assembly 101. For its sealing effect, please refer to the description of the bending wire harness passing through sealing and fixing assembly 101, which will not be repeated here.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable 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; they can refer to the internal connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A bending wire harness sealing and fixing assembly, characterized in that, include: The device comprises a wire guide, a pressure cap, and an annular sealing gasket. The wire guide has a longitudinal through-hole and a recessed lower transverse groove on its upper surface. One side of the lower transverse groove penetrates one side wall of the wire guide, and the other side communicates with the longitudinal through-hole. A recessed first sealing groove is located on the lower surface of the wire guide opposite the longitudinal through-hole. A recessed upper transverse groove is located on the lower surface of the pressure cap opposite the lower transverse groove, and one side of the upper transverse groove penetrates one side wall of the pressure cap. The upper part of the annular sealing gasket is housed within the first sealing groove, and the lower part of the annular sealing gasket protrudes from the wire guide. The pressure cap and the wire guide are interlocked, and the upper transverse groove, the lower transverse groove, the longitudinal through-hole, and the inner hole of the annular sealing gasket together form a wire passage. The pressure cap has a first threaded fitting mounting hole through it for threaded connectors to pass through.

2. The bending wire harness sealing and fixing assembly according to claim 1, characterized in that, The cable guide is rectangular in shape, and each of the four corners of the cable guide has a clearance notch. The cover is rectangular in shape, and each of the four corners of the cover has a downward protruding connecting post. The shape of the connecting post matches the shape of the clearance notch, and the four connecting posts correspond one-to-one and extend into the four clearance notches. Each connecting post has a first screw mounting hole.

3. The bending wire harness sealing and fixing assembly according to claim 2, characterized in that, The edge of the cover is also provided with a separation and disassembly hole that runs through it and is offset from the lower horizontal slot; there are two separation and disassembly holes, and the two separation and disassembly holes are respectively provided on two opposite edges of the cover.

4. The bending wire harness sealing and fixing assembly according to claim 3, characterized in that, The top of the connecting post is lowered to form a screw head receiving groove.

5. The bending wire harness sealing and fixing assembly according to claim 4, characterized in that, The centers of the four first screw mounting holes are located at the four corners of the same square; the outer contour shape of the projection of the cover on the horizontal plane is a square M1, and the outer contour shape of the projection of the wire guide on the horizontal plane is a square M2 with notches at the four corners. The side lengths of the squares M1 and M2 are equal, and they are aligned vertically.

6. The bending wire harness sealing and fixing assembly according to claim 5, characterized in that, The upper and lower transverse slots together form a cylindrical outlet hole. The longitudinal through hole is a cylindrical hole, and the inner hole of the annular sealing gasket is a cylindrical hole coaxial with the longitudinal through hole. The axis of the outlet hole and the axis of the longitudinal through hole intersect, and the included angle between them is the wire bending angle H, where H = 85°~105°.

7. The bending wire harness sealing and fixing assembly according to claim 6, characterized in that, The cross-section of the connecting column is square, and the bending angle H of the line is 90°.

8. The bending wire harness sealing and fixing assembly according to any one of claims 1 to 7, characterized in that, Both the gland and the wire guide are made of metal.

9. A quick-installation module for a wire harness, characterized in that, include: The multi-core wire harness includes an internal connector and a lead-out connector respectively connected to both ends of the multi-core wire harness, and a bending wire harness sealing and fixing assembly as described in any one of claims 1 to 8. The multi-core wire harness passes through the wire passage, and the inner wall of the annular sealing gasket is arranged to seal and surround the outer periphery of the multi-core wire harness. The pressure cap and the wire guide seat cooperate to press and fix the middle section of the multi-core wire harness. The connection post and the clearance notch are interference fit or transition fit to achieve a fixed connection between the pressure cap and the wire guide seat.

10. An electric actuator, characterized in that, The device includes a housing and a wire harness quick-connect module as described in claim 9. The housing has a receiving cavity formed therein, and a printed circuit board is disposed in the receiving cavity. A wire guide device mounting hole is provided through one side wall of the housing and communicates with the receiving cavity. The opening of the wire guide device mounting hole has a recessed second sealing groove, and the lower part of the annular sealing gasket is received in the second sealing groove. The outer side wall of the housing also has a second screw-fit mounting hole arranged around the wire guide device mounting hole and aligned with the first screw-fit mounting hole. The electric actuator further includes a connecting bolt that passes through the first screw-fit mounting hole. The connecting bolt includes a bolt head that is completely received in a bolt head receiving groove. The end of the connecting bolt away from the bolt head extends into and is fixed in the second screw-fit mounting hole to abut and fix the gland to the outer side wall of the housing. The internal connector is plugged into the printed circuit board.

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