A multi-directional reaming device for a rubber sheath of an automobile wiring harness

Abstract

The application relates to the technical field of rubber sheath reaming, in particular to a multi-directional reaming device for rubber sheaths of automobile wire harnesses, which comprises a reaming pushing mechanism, a hole depth control mechanism arranged in the reaming pushing mechanism and a hole direction adjusting mechanism arranged on the reaming pushing mechanism; the reaming pushing mechanism comprises a pressure-resistant guide pipe, and a through hole is arranged in the pressure-resistant guide pipe; the pressure-resistant guide pipe is arranged, a hole direction adjusting mechanism is arranged outside the pressure-resistant guide pipe, the hole direction adjusting mechanism is extruded by a nut on a threaded section in the pressure-resistant guide pipe and extends outward after the nut is adjusted, at this time, two hole pressing end heads symmetrically distributed can perform a reaming operation on a selected part of the rubber sheath, when a core rod pushes two pull rods to extend and side flips the two hole pressing end heads, the hole pressing end heads can quickly and conveniently exit from a deformation chamber of the sheath after reaming.

Description

Technical Field

[0001] This invention relates to the field of rubber sheath enlargement technology, specifically a multi-directional enlargement device for rubber sheaths used in automotive wiring harnesses. Background Technology

[0002] Pre-installation of automotive wiring harnesses requires the protection of rubber sheaths. Due to the high compressive strength of rubber sheaths, a hole-expanding device is needed to adjust the rubber sheaths installed on the wiring harness. After applying pressure to the selected part of the sheath using the hole-expanding device, the expanded sheath can be easily and quickly installed on the automotive wiring harness.

[0003] Currently, the expansion components in automotive wiring harness enlargement devices have certain defects in actual use. Due to the fixed angle of the enlargement end, the sheath after enlargement will hinder the disengagement of the expansion component during the enlargement process. At the same time, the enlargement depth inside the sheath is also relatively constant, making it inconvenient to adapt the sheath to wiring harnesses with different degrees of expansion.

[0004] In view of this, a multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A multi-directional hole-expanding device for rubber sheaths used in automotive wiring harnesses includes a hole-expanding and pushing mechanism, a hole depth adjustment mechanism disposed within the hole-expanding and pushing mechanism, and a hole direction adjustment mechanism disposed on the hole-expanding and pushing mechanism. The hole-expanding and pushing mechanism includes a pressure-resistant guide tube, and a through hole is opened inside the pressure-resistant guide tube. A core rod and a first pull rod and a second pull rod are movably installed at the inner end of the core rod and are stacked together. The hole direction adjustment mechanism includes a pressure-increasing sleeve disposed on the threaded section of the pressure-resistant guide tube, a first support movably installed at one end of the pressure-increasing sleeve, and a second support movably installed at the other end of the pressure-increasing sleeve. Clamps are provided at both ends of the first support and the second support away from the pressure-increasing sleeve. A base is disposed inside the clamps, and a pressing end is installed on the threaded section of the base.

[0008] In a preferred embodiment, the present invention may be further configured such that: the hole depth adjustment mechanism includes a base disposed outside the pressure-resistant conduit, a locking bolt installed in a screw hole inside the base, and two sets of slide table assemblies movably installed in two slide tracks on the base;

[0009] The slide assembly includes a slider, an end rod mounted at one end of the slider, a second spring disposed outside the end rod, and a guide rod disposed inside the slider;

[0010] A lever is movably mounted on one side of the slider, and a slide bar is provided at the other end of the lever. An extended screw is movably mounted inside the slide bar, and a reinforcing ring is provided on the threaded section of the extended screw, and the reinforcing ring is installed on the outer end of the pressure-resistant conduit.

[0011] A limit frame is installed on the other side of the outside of the slider.

[0012] In a preferred embodiment, the present invention may be further configured such that: the hole-expanding and advancing mechanism further includes two sliding columns fixedly installed at the outer end of the pressure-resistant guide tube, a ring rail movably installed outside the two sliding columns, and a handle sleeve installed at the inner end of the ring rail;

[0013] The threaded section of the pressure-resistant conduit is provided with a nut and a first spring, and the first spring is adapted to bear pressure between the inner end of the pressure-resistant conduit and the nut.

[0014] In a preferred embodiment, the present invention can be further configured such that the sliding column is composed of a T-shaped column and an arc-shaped slider, and the arc-shaped slider is adapted to be snapped into the inner side of the ring rail.

[0015] In a preferred embodiment, the present invention can be further configured such that: hexagonal threaded sleeves are provided in the end plates on both sides of the reinforcing ring pad, and the hexagonal threaded sleeves are installed on the threaded section of the extended screw.

[0016] In a preferred embodiment, the present invention can be further configured such that: the outer wall of the pressure-resistant conduit is provided with two symmetrically distributed limiting grooves, and the two slide bars are adapted to be installed in the two limiting grooves;

[0017] The slider has an overall U-shaped structure.

[0018] In a preferred embodiment, the present invention can be further configured such that: the base is composed of a stabilizing pad and two L-shaped support plates, and the L-shaped support plates are provided with horizontal holes;

[0019] The end of the end rod away from the slider is adapted to pass through the horizontal hole in the L-shaped support plate.

[0020] In a preferred embodiment, the present invention can be further configured such that: a U-shaped groove is provided inside the limiting frame, and a vertical axis is provided at the end of the U-shaped groove away from the slider;

[0021] The first support frame has an elliptical pad in the middle, and the vertical shaft is movably installed in the groove inside the elliptical pad.

[0022] In a preferred embodiment, the present invention can be further configured such that: the outer surface of the pressing end is provided with an anti-slip coating, and both ends of the pressing end are provided with inclined grooves.

[0023] In a preferred embodiment, the present invention can be further configured such that: threaded recesses are provided at both ends of the base, and a clamping piece is installed on the side of the base away from the pressure hole end, and the two clamping pieces are respectively installed in the first pull rod and the second pull rod.

[0024] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0025] 1. This invention provides a pressure-resistant conduit with an external hole-direction adjustment mechanism. As the nut on the internal thread section of the pressure-resistant conduit is adjusted, the hole-direction adjustment mechanism is pushed outward by the nut. At this time, the two symmetrically distributed pressure hole ends can enlarge the selected part of the rubber sheath. When the core rod pushes the two pull rods to extend and adjusts the two pressure hole ends to the side, the pressure hole ends can be quickly and easily removed from the deformation chamber of the sheath after enlargement.

[0026] 2. The present invention provides a hole depth adjustment mechanism on the outside of the pressure-resistant conduit. As the selected extended screw rotates and pushes the slide bar, the lever arm connected to the slide bar can apply a thrust to one of the slide assembly components. Finally, the limiting frame installed on the slide assembly can adjust the center of one of the supports by tilting it to the side, thereby ensuring that the pressure hole end can gradually adjust the depth of the selected part of the sheath.

[0027] 3. The present invention uses the handle sleeve and ring rail as the rotating platform of the hole enlarging device. As the pressing end extends outward and expands the sheath, the two pressing ends in the expanded position will rotate along the selected part of the sheath. Ultimately, it can ensure that the device can be forced to rotate after being adapted to an electric expansion mechanism, so as to improve the roundness of the hole enlarging part of the sheath. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0029] Figure 2 This is a bottom view diagram of the present invention;

[0030] Figure 3 This is an exploded view of the hole orientation adjustment mechanism of the present invention;

[0031] Figure 4 This is a schematic diagram of the hole-expanding propulsion mechanism of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle;

[0034] Figure 7 This is an exploded view of the hole depth control mechanism of the present invention;

[0035] Figure 8 For the present invention Figure 7 Enlarged diagram of point C in the middle.

[0036] Figure label:

[0037] 100. Hole-reducing and propulsion mechanism; 110. Handle sleeve; 120. Ring rail; 130. Pressure-resistant guide tube; 140. Sliding column; 150. First spring; 160. Nut; 170. Core rod; 180. First pull rod; 190. Second pull rod;

[0038] 200. Hole depth adjustment mechanism; 210. Reinforcing ring washer; 220. Extended screw; 230. Sliding bar; 240. Lever arm; 250. Base; 260. Locking bolt; 270. Slide assembly; 271. Slider; 272. Guide rod; 273. End rod; 274. Second spring; 280. Limiting bracket;

[0039] 300. Hole orientation adjustment mechanism; 310. Pressure boosting sleeve; 320. First support frame; 330. Second support frame; 340. Clamp; 350. Base; 360. Pressing end. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0041] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0042] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses.

[0043] Example 1:

[0044] Combination Figures 1 to 8 As shown, the present invention provides a multi-directional hole-expanding device for rubber sheaths used in automotive wiring harnesses, comprising a hole-expanding and pushing mechanism 100, a hole depth control mechanism 200 disposed within the hole-expanding and pushing mechanism 100, and a hole orientation adjustment mechanism 300 disposed on the hole-expanding and pushing mechanism 100. The hole-expanding and pushing mechanism 100 provides a support platform for the reaction force of hole-expanding of the rubber sheath, the hole depth control mechanism 200 provides a progressive platform for the hole-expanding depth of the hole orientation adjustment mechanism 300, and the hole orientation adjustment mechanism 300 is used to perform rounded hole expansion on selected parts of the rubber sheath.

[0045] The hole-expanding propulsion mechanism 100 includes a pressure-resistant conduit 130, and the inside of the pressure-resistant conduit 130 is provided with a through hole. A core rod 170 and a first pull rod 180 and a second pull rod 190 are movably installed in the through hole and are stacked on the inner end of the core rod 170.

[0046] The orifice adjustment mechanism 300 includes a pressure-boosting sleeve 310 disposed on the threaded section of the pressure-resistant conduit 130, a first support 320 movably mounted on one end of the pressure-boosting sleeve 310, and a second support 330 movably mounted on the other end of the pressure-boosting sleeve 310.

[0047] Both ends of the first support 320 and the second support 330 away from the pressure sleeve 310 are provided with clamps 340, and a base 350 is provided inside the clamps 340. A pressure hole end 360 is installed on the threaded section of the base 350.

[0048] The outer surface of the punch end 360 is provided with an anti-slip coating, and both ends of the punch end 360 are provided with inclined grooves.

[0049] Both ends of the base 350 are provided with threaded recesses, and a clamping plate is installed on the side of the base 350 away from the pressing end 360. The two clamping plates are respectively installed in the first pull rod 180 and the second pull rod 190.

[0050] When the pressure-increasing sleeve 310 is pressurized and moves laterally along the threaded section of the pressure-resistant conduit 130, the first support 320 and the second support 330, which are movably mounted on the pressure-increasing sleeve 310, will push the combined clamp 340, base 350 and pressure hole end 360. At this time, the two pressure hole ends 360, which are equidistantly expanded under relative pressure, can perform constant pressure expansion treatment on the selected part of the rubber sheath. After the sheath is expanded, according to the expansion requirements of the remaining parts of the sheath, the core rod 170 is forcibly extended. At this time, the first pull rod 180 and the second pull rod 190, which are movably mounted on the inner end of the core rod 170, will adjust the two pressure hole ends 360 by tilting. When the two pressure hole ends 360 become loose due to the traction of the first pull rod 180 and the second pull rod 190, the loosened two pressure hole ends 360 can quickly disengage from the expansion part of the rubber sheath.

[0051] Example 2:

[0052] Combination Figures 3 to 4 As shown, based on Embodiment 1, the hole enlarging and propulsion mechanism 100 further includes two sliding columns 140 fixedly installed at the outer end of the pressure-resistant guide tube 130, a ring rail 120 movably installed outside the two sliding columns 140, and a handle sleeve 110 installed at the inner end of the ring rail 120.

[0053] The threaded section of the pressure-resistant conduit 130 is provided with a nut 160 and a first spring 150, and the first spring 150 is adapted to bear pressure between the inner end of the pressure-resistant conduit 130 and the nut 160.

[0054] The sliding column 140 consists of a T-shaped column and an arc-shaped slider, and the arc-shaped slider is adapted to be snapped into the inner side of the ring rail 120.

[0055] The outer wall of the pressure-resistant conduit 130 is provided with two symmetrically distributed limiting grooves, and two sliding strips 230 are adapted to be installed in the two limiting grooves;

[0056] The slider 230 has an overall U-shaped structure.

[0057] When the two pressure-hole ends 360 are compressed and expand outward, the two expanded pressure-hole ends 360 can squeeze the rubber sheath. As the selected part of the sheath is squeezed until the hole is enlarged, according to the needs of the enlarged hole part of the sheath, the pressure-resistant guide tube 130 can drive the two pressure-hole ends 360 to perform circumferential enlargement treatment along the selected part of the sheath by forced rotation.

[0058] Example 3:

[0059] Combination Figures 3 to 8 As shown, in the above embodiment, the hole depth adjustment mechanism 200 includes a base 250 disposed outside the pressure-resistant guide tube 130, a locking bolt 260 installed in the screw hole inside the base 250, and two sets of slide table assemblies 270 movably installed in two slide tracks of the base 250.

[0060] Preferably, after the locking bolt 260 is tightened clockwise, the pressed base 250 will be fixed on the threaded section of the pressure-resistant conduit 130. When it is necessary to further increase the width of the two pressure hole ends 360, the locking bolt 260 can be loosened until the base 250 moves closer to the first spring 150 along the threaded section of the pressure-resistant conduit 130.

[0061] The slide assembly 270 includes a slider 271, an end rod 273 mounted on one end of the slider 271, a second spring 274 disposed outside the end rod 273, and a guide rod 272 disposed inside the slider 271.

[0062] A lever 240 is movably mounted on one side of the slider 271. A slide bar 230 is provided at the other end of the lever 240. An extended screw 220 is movably mounted inside the slide bar 230. A reinforcing ring washer 210 is provided on the threaded section of the extended screw 220, and the reinforcing ring washer 210 is installed on the outer end of the pressure-resistant conduit 130.

[0063] A limit bracket 280 is installed on the other side of the outside of the slider 271;

[0064] Hexagonal threaded sleeves are provided inside the end plates on both sides of the reinforcing ring washer 210, and the hexagonal threaded sleeves are installed on the threaded section of the extended screw 220;

[0065] The base 250 consists of a stabilizing pad and two L-shaped support plates, and the L-shaped support plates have horizontal holes.

[0066] The end of the end rod 273 away from the slider 271 is adapted to pass through the transverse hole in the L-shaped support plate;

[0067] The limit frame 280 has a U-shaped groove inside, and a vertical shaft is provided at the end of the U-shaped groove away from the slider 271;

[0068] An elliptical pad is provided in the middle of the first support 320, and the vertical shaft is movably installed in the groove inside the elliptical pad.

[0069] When the slide bar 230 moves toward the base 250 along the limiting groove on the outer wall of the pressure-resistant conduit 130, the slider 271 will expand outward. When one or two selected sliders 271 are pushed outward, the lateral center of the first support 320 and the second support 330, which are constrained by the vertical axis and subjected to pressure, can be adjusted. This allows the two pressure hole ends 360 to perform gradual hole depth processing on the selected part of the rubber sheath, so as to improve the rubber sheath after gradual hole expansion to adapt and encapsulate bundles of different thicknesses after bundling.

[0070] The working principle and usage process of this invention: The pre-adjustment nut 160 is rotated counterclockwise. At this time, the nut 160 will move closer to the base 250 along the threaded section of the pressure-resistant conduit 130. At this time, the first spring 150, which loses pressure, will push the pressure-boosting sleeve 310 to move laterally along the threaded section of the pressure-resistant conduit 130. The first support 320 and the second support 330, which are movably installed on the pressure-boosting sleeve 310, will be compressed and drive the combined clamp 340, base 350 and pressure hole end 360 to move closer together in the center until the two pressure hole ends 360 are contracted to the minimum state.

[0071] Next, the user needs to control the handle sleeve 110 and manipulate the two pressing end heads 360 to deliver them toward the end of the rubber sleeve to be enlarged until the two pressing end heads 360 are inside the rubber sleeve. Then, the nut 160 can be controlled to rotate clockwise again. The nut 160 will push the pressure sleeve 310 to move closer to the first spring 150. At this time, the first support 320 and the second support 330 expand outward in an outward V-shape under the limiting constraints of the two limiting frames 280. Finally, the combined clamp 340, base 350 and pressing end heads 360 can apply pressure to the part of the rubber sleeve to be enlarged. As the pressure gradually increases, the selected part of the sleeve can be enlarged outward.

[0072] After the selected part of the sheath is enlarged, the extension of the first pull rod 180 and the second pull rod 190 is adjusted by controlling the extension and retraction of the core rod 170. At this time, the two symmetrically distributed pressing end heads 360 will flip sideways along the axis of the clamp 340. The two pressing end heads 360 can then apply pressure to the enlarged part of the sheath until the enlarged part of the sheath is further enlarged and rounded, so that the pressing end heads 360 can be quickly withdrawn from the enlarged part of the sheath.

[0073] When the enlargement depth and range of a certain part of the rubber sheath need to be adjusted, one of the extension screws 220 can be adjusted. At this time, the extension screw 220 extends along the inside of the reinforcing ring pad 210 and pushes the slide bar 230 to reciprocate. The other end of the slide bar 230 will apply a compressive force to the lever arm 240. Finally, one of the slide table assemblies 270 will extend outward along the slide rail at one end of the base 250. At this time, the slide table assembly 270, after extending and moving outward, can cooperate with the limit frame 280 to adjust the rotation center of the first support 320 or the second support 330, thereby realizing the enlargement treatment of the rubber sheath at various points with varying depths, and the hole position can also be selected for multi-directional expansion operation.

[0074] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-directional hole-expanding device for rubber sheaths used in automotive wiring harnesses, comprising a hole-expanding and pushing mechanism (100), characterized in that, It also includes a hole depth control mechanism (200) disposed in the hole expansion propulsion mechanism (100) and a hole orientation adjustment mechanism (300) disposed on the hole expansion propulsion mechanism (100). The hole-expanding propulsion mechanism (100) includes a pressure-resistant conduit (130), and the pressure-resistant conduit (130) has a through hole inside. A core rod (170) and a first pull rod (180) and a second pull rod (190) are movably installed in the through hole and are stacked on the inner end of the core rod (170). The hole depth adjustment mechanism (200) includes a base (250) disposed outside the pressure-resistant guide tube (130), a locking bolt (260) installed in the screw hole inside the base (250), and two sets of slide table assemblies (270) movably installed in two slides of the base (250). The slide assembly (270) includes a slider (271), an end rod (273) mounted on one end of the slider (271), a second spring (274) disposed outside the end rod (273), and a guide rod (272) disposed inside the slider (271). A lever arm (240) is movably mounted on one side of the slider (271), and a slide bar (230) is provided at the other end of the lever arm (240). An extended screw (220) is movably mounted inside the slide bar (230). A reinforcing ring washer (210) is provided on the threaded section of the extended screw (220), and the reinforcing ring washer (210) is installed on the outer end of the pressure-resistant conduit (130). A limit frame (280) is installed on the other side of the outside of the slider (271); The outer wall of the pressure-resistant conduit (130) is provided with two symmetrically distributed limiting grooves, and the two slide bars (230) are adapted to be installed in the two limiting grooves; The slider (230) has an overall U-shaped structure; The hole direction adjustment mechanism (300) includes a pressure-increasing sleeve (310) disposed on the threaded section of the pressure-resistant conduit (130), a first support (320) movably installed at one end of the pressure-increasing sleeve (310), and a second support (330) movably installed at the other end of the pressure-increasing sleeve (310). Both ends of the first support (320) and the second support (330) away from the pressure sleeve (310) are provided with clamps (340), and a base (350) is provided inside the clamps (340). A pressure hole end (360) is installed on the threaded section of the base (350). Both ends of the base (350) are provided with threaded recesses, and a clamp is installed on the side of the base (350) away from the pressure hole end (360). The two clamps are respectively installed in the first pull rod (180) and the second pull rod (190).

2. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 1, characterized in that, The hole-expanding propulsion mechanism (100) also includes two sliding columns (140) fixedly installed at the outer end of the pressure-resistant guide tube (130), a ring rail (120) movably installed outside the two sliding columns (140), and a handle sleeve (110) installed at the inner end of the ring rail (120). The threaded section of the pressure-resistant conduit (130) is provided with a nut (160) and a first spring (150), and the first spring (150) is adapted to bear pressure between the inner end of the pressure-resistant conduit (130) and the nut (160).

3. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 2, characterized in that, The sliding column (140) is composed of a T-shaped column and an arc-shaped slider, and the arc-shaped slider is adapted to be snapped into the inner side of the ring rail (120).

4. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 1, characterized in that, Hexagonal threaded sleeves are provided in the end plates on both sides of the reinforcing ring gasket (210), and the hexagonal threaded sleeves are installed on the threaded section of the extended screw (220).

5. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 1, characterized in that, The base (250) consists of a stabilizing pad and two L-shaped support plates, and the L-shaped support plates have horizontal holes. The end of the end rod (273) away from the slider (271) is adapted to pass through the transverse hole in the L-shaped support plate.

6. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 1, characterized in that, The limiting frame (280) has a U-shaped groove inside, and a vertical shaft is provided at the end of the U-shaped groove away from the slider (271); The first support (320) has an elliptical pad in the middle, and the vertical axis is movably installed in the groove inside the elliptical pad.

7. The multi-directional hole-expanding device for rubber sheaths of automotive wiring harnesses according to claim 1, characterized in that, The outer surface of the puncture end (360) is provided with an anti-slip coating, and both ends of the puncture end (360) are provided with inclined grooves.

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