Endoscope wire harness with built-in rigid adjustment

Abstract

The invention discloses an endoscope wire harness with built-in rigid adjustment. The endoscope wire harness comprises a wire harness insulating layer, a thermosetting interlayer and a heating body, a first adjusting assembly, a second adjusting assembly and a corrugated pipe are arranged in the thermosetting interlayer; each of the first adjusting assembly and the second adjusting assembly comprises an adjusting seat, a piston, an elastic piece, a supporting block and two electrodes; the adjusting seat is provided with an air cavity; the piston is movably arranged in the air cavity; the supporting block is in transmission connection with the piston; the elastic piece is arranged between the piston and the adjusting seat; the two electrodes slidably sleeve the two heating bodies in a one-to-one correspondence manner; the rigidity of the first adjusting assembly is greater than that of the second adjusting assembly; the air cavities between the two adjusting assemblies are communicated; the first adjusting assembly is provided with an electric control locking assembly. An adjusting seat of the second adjusting assembly is provided with two conducting rings; a wire core penetrates through the thermosetting interlayer along the axis of the thermosetting interlayer; the wire core is provided with two conductive layers; the flexible adjustment and reliable locking of the rigidity of the wire harness are realized, and the use reliability and the service life of endoscope equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harnesses, in particular to an endoscope wire harness with built-in rigidity adjustment. Background Art

[0002] Existing endoscope harnesses need to have flexible rigidity adjustment capabilities when the equipment is frequently moved or switched between different usage scenarios to avoid damage to the internal wire core due to excessive bending and stretching.

[0003] However, the rigidity of existing endoscope harnesses is mostly fixed, and it is difficult to adjust the rigidity according to the actual operation of the endoscope equipment and the environment in which it is located, resulting in inflexible use of the structure and reduced reliability of the endoscope equipment. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings mentioned above and provide an endoscope harness with built-in rigidity adjustment, which realizes flexible adjustment and reliable locking of the harness rigidity, improves the controllability of the harness, and adapts to the use in different medical scenarios, thereby helping to avoid the damage of the internal wire core due to excessive bending and stretching of the harness, and helps to improve the reliability and service life of the endoscope equipment.

[0005] To achieve the above object, the specific solutions of the present invention are as follows:

[0006] An endoscope wire harness with built-in rigidity adjustment comprises a wire harness insulation layer, a heat-hardening interlayer arranged in the wire harness insulation layer, and two heating elements arranged oppositely in the heat-hardening interlayer;

[0007] A first adjusting component, a second adjusting component and a bellows connected between the first adjusting component and the second adjusting component are provided in the heat-hardened interlayer;

[0008] The first adjustment assembly and the second adjustment assembly each include an adjustment seat, a piston, an elastic member, a support block, and two electrodes; the adjustment seat is provided with an air cavity; the piston is movably disposed in the air cavity; the support block is movably disposed through the adjustment seat and is transmission-connected to the piston; the elastic member is disposed between the piston and the adjustment seat; the two electrodes are disposed opposite to the adjustment seat and are electrically connected, and are slidably sleeved on the two heating elements in a one-to-one correspondence;

[0009] The elastic member of the first adjustment assembly has a greater stiffness than the elastic member of the second adjustment assembly; the air cavity of the first adjustment assembly is connected to the air cavity of the second adjustment assembly; the first adjustment assembly is provided with an electrically controlled locking assembly electrically connected to the two electrodes and used to unlockably lock the piston; the adjustment seat of the second adjustment assembly is also provided with two conductive rings electrically connected to the two electrodes in a one-to-one correspondence;

[0010] A wire core is passed through the heat-hardened interlayer along its axis; and two conductive layers corresponding to and electrically coupled with two conductive rings are arranged on the outer peripheral wall of the wire core.

[0011] Optionally, the air cavity of the first adjusting component is connected to the air cavity of the second adjusting component through a spiral air tube; the spiral air tube is wound around the outer circumference of the bellows.

[0012] Optionally, the first adjustment assembly and the second adjustment assembly also include a driving block provided on the piston; the driving block is transmission-connected to the supporting block.

[0013] Optionally, the driving block is provided with a first inclined surface; and the supporting block is provided with a second inclined surface in sliding contact with the first inclined surface.

[0014] Optionally, the two supporting blocks are arranged opposite to each other on the adjustment seat; and the two driving blocks are arranged opposite to each other on the piston.

[0015] Optionally, a reset elastic member is connected between the support block and the adjustment seat.

[0016] Optionally, the electronically controlled locking assembly includes a permanent magnetic pin, a tension spring and an electromagnet; the piston of the first adjusting assembly is provided with a receiving hole; the permanent magnetic pin is slidably arranged in the receiving hole; the tension spring is arranged between the hole wall of the receiving hole and the permanent magnetic pin, so that the permanent magnetic pin is accommodated in the receiving hole; the electromagnet is arranged on the adjusting seat; the electromagnet is electrically connected to the two electrodes of the first adjusting assembly; the adjusting seat of the first adjusting assembly is provided with a locking hole; when the electromagnet is energized, the electromagnet generates a magnetic attraction force on the permanent magnetic pin, so that the permanent magnetic pin can overcome the action of the tension spring, extend out of the receiving hole and then be inserted into the locking hole.

[0017] Optionally, a pneumatic component is provided at the end of the wiring harness insulation layer; the pneumatic component includes a first telescopic air tube and a second telescopic air tube arranged coaxially; the first telescopic air tube is located in the second telescopic air tube; the first telescopic air tube is connected to the bellows; the second telescopic air tube is connected to the air cavity of the first adjustment component.

[0018] Optionally, the pneumatic component also includes a valve body and a valve core; the valve body is provided with an air chamber; the valve core is rotatably arranged in the air chamber; the valve core is provided with an air inlet valve and an exhaust valve; one end of the first telescopic air tube and one end of the second telescopic air tube are both connected to the valve body; the other end of the first telescopic air tube is fixedly penetrated into the adjustment seat of the first adjustment component and is connected to the bellows; the other end of the second telescopic air tube is fixedly penetrated into the adjustment seat of the first adjustment component and is connected to the air cavity of the first adjustment component; the valve body extends with an air nozzle connected to the air chamber.

[0019] Optionally, a rotating portion is provided in the middle of the valve core; the rotating portion moves through the valve body and then extends out of the valve body.

[0020] The beneficial effects of the present invention are: by arranging a bellows, a first adjustment component and a second adjustment component in the heat-hardened interlayer, thereby utilizing the stiffness difference of the elastic parts between the first adjustment component and the second adjustment component, and cooperating with the electronically controlled locking component, it is possible to flexibly control the position and length of the bellows in the heat-hardened interlayer, and utilize the locking conditions of the first adjustment component and the second adjustment component at different air pressure values, thereby achieving flexible adjustment and reliable locking of the wiring harness rigidity, improving the controllability of the wiring harness, and adapting to the use in different medical scenarios, thereby helping to avoid the phenomenon of internal wire core damage due to excessive bending and stretching of the wiring harness, and helping to improve the reliability and service life of the endoscopic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0023] Figure 3 yes Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 4 yes Figure 1 A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 5 is a cross-sectional schematic diagram of the present invention after the positions of the first adjustment component and the second adjustment component are adjusted;

[0026] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point D in the middle;

[0027] Figure 7 yes Figure 5 A partial enlarged schematic diagram of point E in the middle;

[0028] Figure 8 It is a partial structural schematic diagram of the present invention;

[0029] Figure 9 is a cross-sectional schematic diagram of the first adjustment component of the present invention;

[0030] Figure 10 is a cross-sectional schematic diagram of the first adjustment component of the present invention from another perspective;

[0031] Figure 11 is a cross-sectional schematic diagram of the second adjustment assembly of the present invention;

[0032] Figure 12 is a cross-sectional schematic diagram of the second adjustment assembly of the present invention from another perspective;

[0033] Explanation of the reference numerals: 10, wiring harness insulation layer; 20, heat-hardening interlayer; 30, heating element; 41, first adjustment seat; 411, first air cavity; 412, locking hole; 42, first piston; 43, first elastic member; 44, first support block; 45, first electrode; 461, permanent magnet pin; 462, tension spring; 463, electromagnet; 47, first driving block; 48, first reset elastic member; 51, second adjustment seat; 511, second air cavity; Cavity; 52, second piston; 53, second elastic member; 54, second supporting block; 55, second electrode; 56, conductive ring; 57, second driving block; 58, second reset elastic member; 60, bellows; 70, wire core; 80, spiral air tube; 91, valve body; 911, air chamber; 912, air nozzle; 92, valve core; 921, rotating part; 93, first telescopic air tube; 94, second telescopic air tube; 95, intake valve; 96, exhaust valve. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0035] like Figures 1 to 12 As shown, the embodiment of the invention describes an endoscope harness with built-in rigidity adjustment, comprising a harness insulation layer 10, a thermosetting interlayer 20 and a heating element 30; the thermosetting interlayer 20 is coaxially arranged in the harness insulation layer 10; the thermosetting interlayer 20 can be made of a shape memory polymer (polyurethane, epoxy resin), a thermotropic liquid crystal polymer, a thermoplastic elastomer (styrene, polyolefin, polyester, etc.) or a nano-composite material (such as nanoclay, carbon nanotube, nano-silica, etc.); two heating elements 30 are relatively arranged on the inner wall of the thermosetting interlayer 20; the heating element 30 is preferably made of a metal material with uniform resistivity, such as a nickel-chromium alloy.

[0036] A first adjustment component, a second adjustment component and a bellows 60 connected between the first adjustment component and the second adjustment component are provided in the heat-hardened interlayer 20 ; the first adjustment component, the second adjustment component and the bellows 60 constitute a rigid adjustment section.

[0037] like Figure 2 、 Figure 6 、 Figures 8 to 10As shown, the first adjustment assembly includes a first adjustment seat 41, a first piston 42, a first elastic member 43, a first support block 44 and two first electrodes 45; the first adjustment seat 41 is provided with a first air cavity 411; the first piston 42 is movably arranged in the first air cavity 411; the first elastic member 43 is connected between the first adjustment seat 41 and the first piston 42; the first support block 44 is movably arranged through the first adjustment seat 41 and is transmission-connected to the first piston 42; the two first electrodes 45 are arranged relative to the first adjustment seat 41 and are electrically connected, and the two first electrodes 45 are slidably sleeved on the two heating elements 30 in a one-to-one correspondence; the first electrodes 45 are in sliding electrical contact with the heating elements 30; the first electrodes 45 are made of a metal material with good electrical conductivity and wear resistance; preferably, the shape of the first electrode 45 is adapted to the shape of the heating element 30 to ensure that the first electrode 45 and the heating element 30 always maintain good electrical conductivity during the movement of the first electrode 45. The first adjustment assembly also includes an electrically controlled locking assembly electrically connected to the two first electrodes 45; the electrically controlled locking assembly is used to unlockably lock the piston.

[0038] like Figure 3 、 Figure 7 、 Figure 8 、 Figure 11 and Figure 12 As shown, the second adjustment assembly includes a second adjustment seat 51, a second piston 52, a second elastic member 53, a second support block 54 and two second electrodes 55; the second adjustment seat 51 is provided with a second air cavity 511 connected to the first air cavity 411; the second piston 52 is movably arranged in the second air cavity 511; the second elastic member 53 is connected between the second adjustment seat 51 and the second piston 52; the stiffness of the second elastic member 53 is less than the stiffness of the first elastic member 43; the second support block 54 is movably passed through the second adjustment seat 51 and is transmission-connected to the second piston 52; the two second electrodes 55 are relatively arranged on the second adjustment seat 51 and are electrically connected, and the two second electrodes 55 are slidingly sleeved on the two heating elements 30 in a one-to-one manner; the second electrode 55 is in sliding electrical contact with the heating element 30; the second electrode 55 is made of a metal material with good electrical conductivity and wear resistance; preferably, the shape of the second electrode 55 is adapted to the shape of the heating element 30 to ensure that the second electrode 55 and the heating element 30 always maintain good electrical conductivity during the movement of the second electrode 55. The second adjustment seat 51 is further provided with two conductive rings 56 that are electrically connected in a one-to-one correspondence with the two second electrodes 55. The first elastic member 43 is a first spring; the second elastic member 53 is a second spring.

[0039] like Figure 1 、 Figure 5 and Figure 8As shown, a wire core 70 extends through the heat-hardened interlayer 20 along its axis. The wire core 70 flexibly extends through the first and second adjustment components. The outer wall of the wire core 70 is provided with two conductive layers electrically coupled to the two conductive rings 56 in a one-to-one correspondence. In actual use, the conductive layers are connected to the positive and negative poles of an external power source, respectively.

[0040] In order to facilitate the explanation of the present invention, this embodiment takes the center line of the wiring harness as an example and divides the wiring harness into upper and lower halves for explanation; initially, the rigidity adjustment section is placed in a position symmetrical to the center line of the wiring harness.

[0041] Specifically, if the rigidity adjustment section is required to be located in the lower half of the wiring harness, gas is first introduced into the bellows 60 to increase the air pressure in the bellows 60 and extend it to both sides, thereby driving the first adjustment assembly and the second adjustment assembly to move synchronously along the axial direction of the wire core 70. When the bellows 60 is stretched to a certain length, gas with a pressure of P1 is introduced into the first air cavity 411 and the second air cavity 511. Since the stiffness of the second spring is less than that of the first spring, the second piston 52 overcomes the elastic force of the second spring under the action of the air pressure and slides to push the second support block 54 out, so that the second support block 54 is tightly against the inner wall of the heat-hardened interlayer 20, thereby completing the locking of the second adjustment assembly.

[0042] Then a certain amount of gas in the bellows 60 is extracted to shorten the bellows 60. Since the position of the second adjusting component is fixed, the bellows 60 drives the first adjusting component to move closer to the second adjusting component until the first adjusting component moves to the appropriate position. Then, gas with a pressure of P2 is introduced into the first air cavity 411 and the second air cavity 511 again, and P2 is greater than P1. At this time, the first piston 42 overcomes the elastic force of the first spring under the action of the air pressure and slides and pushes the first support block 44 to extend, so that the first support block 44 is tightly against the inner wall of the heat-hardened interlayer 20, that is, the locking of the first adjusted component is completed. Since P2 is greater than P1, the second piston 52 still keeps the second support block 54 in the extended state under the action of the air pressure; the two conductive layers are connected to the external power supply. Since the two conductive layers are connected to the two conductive layers, The rings 56 are electrically connected one by one, and the two conductive rings 56 are electrically connected to the two second electrodes 55 one by one, thereby forming an electric circuit between the two conductive layers, the two conductive rings 56, the two second electrodes 55, the two heating elements 30 and the two first electrodes 45. The current of the electric circuit is controlled to be I1. At this time, the electric control locking component is energized to lock and fix the first piston 42, so that the first piston 42 remains in the current position, that is, the first support block 44 remains in the extended state, so that the first adjustment component is completely locked. At the same time, the electric circuit causes the heating element 30 between the first electrode 45 and the second electrode 55 to be energized and generate heat, so that the heat-hardening interlayer 20 corresponding to the part of the heating element 30 is heat-hardened, thereby achieving rigidity adjustment of the corresponding part of the endoscope harness;

[0043] If the rigid adjustment section needs to continue to move downward, the current of the energized circuit is reduced from I1 to I2. At this time, the electronically controlled locking assembly still keeps locking the first piston 42, so that the position of the first adjustment assembly is fixed. Then the air pressure in the first air chamber 411 and the second air chamber 511 is reduced to below P1. At this time, the second spring pushes the second piston 52 to reset, and the second support block 54 is retracted, so that the second adjustment assembly is in a free state. Then, gas is introduced into the bellows 60, so that the bellows 60 drives the second adjustment assembly to move downward. After the second adjustment assembly moves down to its full position, gas with a pressure of P1 is introduced into the first air chamber 411 and the second air chamber 511, so that the second support block 54 extends, and the second adjustment assembly is in a free state. Position locking, then the two conductive layers are disconnected from the external power supply, and the electric control locking component releases the lock on the first piston 42 after power is cut off. At this time, the first adjusting component is in a free state, and then a certain amount of gas in the bellows 60 is extracted to shorten the bellows 60. Since the position of the second adjusting component is fixed, the bellows 60 drives the first adjusting component toward the second adjusting component until the first adjusting component moves to the appropriate position. Gas with a pressure of P2 is again introduced into the first air cavity 411 and the second air cavity 511, so that the position of the first adjusting component is fixed. When the power circuit is turned on and the power current is I1, the corresponding part of the heat-hardened interlayer 20 is heat-hardened, thereby realizing the downward movement of the rigid adjustment section.

[0044] If the rigidity adjustment section is required to be located in the upper half of the wiring harness, gas is introduced into the bellows 60 to extend the bellows 60 until the first adjustment component moves up to a suitable position, and gas with a pressure of P2 is introduced into the first air cavity 411 and the second air cavity 511. At this time, the first support block 44 and the second support block 54 are extended under the action of the first piston 42 and the second piston 52 respectively, so that the positions of the first adjustment component and the second adjustment component are fixed, and then the power circuit is turned on with a power current of I2, so that the electric control locking component is energized, the position of the first piston 42 is locked, and then the first air cavity 411 is locked. The air pressure in the second air cavity 511 drops to below P2. At this time, the second adjustment component is in a free state. Then, a certain amount of air in the bellows 60 is extracted to shorten the bellows 60. Since the position of the first adjustment component is fixed, the bellows 60 drives the second adjustment component toward the first adjustment component until the second adjustment component moves to a suitable position. Then, air with a pressure of P1 is introduced into the first air cavity 411 and the second air cavity 511 again, so that the position of the second adjustment component is fixed. Then, the current of the energized circuit is adjusted to I1, thereby achieving the rigidity adjustment of the corresponding part of the endoscope harness. Figure 5 As shown;

[0045] If the rigid adjustment section needs to continue to move upward, the power circuit is de-energized, the electrically controlled locking assembly releases the lock on the first piston 42, and at the same time, gas with a pressure of P1 is introduced into the first air chamber 411 and the second air chamber 511. At this time, the first adjustment assembly is in a free state, and the position of the second adjustment assembly is fixed. Then, gas is introduced into the bellows 60, so that the bellows 60 drives the first adjustment assembly to move upward to a suitable position. Then, gas with a pressure of P2 is introduced into the first air chamber 411 and the second air chamber 511, so that the position of the first adjustment assembly is fixed. At this time, the power circuit can be connected, the current is I2, and the electrically controlled locking assembly locks the first piston 42 , so that the position of the first adjusting component remains fixed, and then the air pressure in the first air cavity 411 and the second air cavity 511 is reduced to below P2, so that the second adjusting component is in a free state, and then a certain amount of gas in the bellows 60 is extracted to shorten the bellows 60. Since the position of the first adjusting component is fixed, the bellows 60 drives the second adjusting component toward the first adjusting component until the second adjusting component moves to the appropriate position, and then the gas with a pressure of P1 is introduced into the first air cavity 411 and the second air cavity 511 again, so that the position of the second adjusting component is fixed, and then the current of the energized circuit is adjusted to I1, thereby realizing the upward movement of the rigid adjustment section.

[0046] This embodiment arranges a bellows 60, a first adjustment component and a second adjustment component in the heat-hardening interlayer 20, thereby utilizing the stiffness difference between the first spring and the second spring, and cooperating with the electrically controlled locking component to achieve flexible control of the position and length of the bellows 60 in the heat-hardening interlayer 20, and utilizing the locking conditions of the first adjustment component and the second adjustment component at different air pressure values, thereby achieving flexible adjustment and reliable locking of the wiring harness rigidity, improving the controllability of the wiring harness, and adapting to the use in different medical scenarios, thereby helping to avoid the damage of the internal wire core 70 due to excessive bending and stretching of the wiring harness, and helping to improve the reliability and service life of the endoscopic equipment.

[0047] like Figures 1 to 3 As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment, the first air cavity 411 and the second air cavity 511 are connected via a spiral air tube 80; the spiral air tube 80 is wound around the outer circumference of the bellows 60. In this way, the ductility of the spiral air tube 80 is utilized to adapt to the change in the spacing between the first adjustment component and the second adjustment component, thereby ensuring that the first air cavity 411 and the second air cavity 511 are always connected.

[0048] like Figure 9 and Figure 11As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment of this embodiment, the first adjustment assembly further includes a first drive block 47 provided on the first piston 42; the first drive block 47 is transmission-connected to the first support block 44; the second adjustment assembly further includes a second drive block 57 provided on the second piston 52; the second drive block 57 is transmission-connected to the second support block 54. In this way, when the first piston 42 moves under the action of gas pressure, the first piston 42 drives the first drive block 47 to move, and the first drive block 47 drives the first support block 44 to move, thereby achieving a fixed position of the first adjustment assembly; similarly, when the second piston 52 moves under the action of gas pressure, the second piston 52 drives the second drive block 57 to move, and the second drive block 57 drives the second support block 54 to move, thereby achieving a fixed position of the second adjustment assembly.

[0049] like Figure 9 and Figure 11 As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment of this embodiment, the first drive block 47 and the second drive block 57 are both provided with a first inclined surface; the first support block 44 and the second support block 54 are both provided with a second inclined surface that slides in contact with the first inclined surface. In this way, the wedge-shaped fit between the first and second inclined surfaces is utilized to enable the first drive block 47, through the fit between the first and second inclined surfaces, to drive the first support block 44 to extend until the first support block 44 abuts against the inner wall of the heat-hardened interlayer 20, thereby fixing the position of the first adjustment component; similarly, the second drive block 57, through the fit between the first and second inclined surfaces, drives the second support block 54 to extend until the second support block 54 abuts against the inner wall of the heat-hardened interlayer 20, thereby fixing the position of the second adjustment component.

[0050] like Figure 9 and Figure 11 As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment of this embodiment, two first support blocks 44 are disposed oppositely on the first adjustment seat 41; two first drive blocks 47 are disposed oppositely on the first piston 42; two second support blocks 54 are disposed oppositely on the second adjustment seat 51; and two second drive blocks 57 are disposed oppositely on the second piston 52. In this embodiment, by providing two first support blocks 44 and two second support blocks 54, the position fixation of the first adjustment assembly and the second adjustment assembly is made more reliable and secure.

[0051] like Figure 9 and Figure 11As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment of this embodiment, a first return elastic member 48 is connected between the first support block 44 and the first adjustment seat 41; a second return elastic member 58 is connected between the second support block 54 and the second adjustment seat 51; the first return elastic member 48 is a first return spring; and the second return elastic member 58 is a second return spring. Thus, when the first spring pushes the first piston 42 to return, the first return spring pushes the first support block 44 inward to return, thereby freeing the first adjustment assembly. Similarly, when the second spring pushes the second piston 52 to return, the second return spring pushes the second support block 54 inward to return, thereby freeing the second adjustment assembly.

[0052] like Figure 10 As shown, the endoscope wiring harness with built-in rigidity adjustment of this embodiment, in some embodiments, the electrically controlled locking assembly includes a permanent magnetic pin 461, a tension spring 462 and an electromagnet 463; the first piston 42 is provided with a receiving hole; the permanent magnetic pin 461 is slidably arranged in the receiving hole; the tension spring 462 is arranged between the hole wall of the receiving hole and the permanent magnetic pin 461, so that the permanent magnetic pin 461 is accommodated in the receiving hole; the electromagnet 463 is arranged on the first adjustment seat 41; the electromagnet 463 is electrically connected to the two first electrodes 45; the first adjustment seat 41 is provided with a locking hole 412; when the electromagnet 463 is energized, the electromagnet 463 generates a magnetic attraction force on the permanent magnetic pin 461, so that the permanent magnetic pin 461 can overcome the action of the tension spring 462 and extend out of the receiving hole and then be inserted into the locking hole 412. Specifically, when the air pressure in the first air cavity 411 and the second air cavity 511 is P2, the first piston 42 overcomes the elastic force of the first spring and slides to push the first support block 44 out. At this time, the permanent magnetic pin 461 corresponds to the position of the locking hole 412. At this time, if the power circuit is connected, the two first electrodes 45 energize the electromagnet 463, and the electromagnet 463 generates a magnetic attraction force on the permanent magnetic pin 461, so that the permanent magnetic pin 461 overcomes the action of the tension spring 462 and extends toward the locking hole 412 until the permanent magnetic pin 461 is inserted into the lock. The first piston 42 is locked in the stop hole 412, thereby keeping the first support in the extended state, so that the position of the first adjustment component remains fixed, which facilitates the position adjustment of the entire rigid adjustment section; when the power circuit is disconnected, the electromagnet 463 is de-energized, and the electromagnet 463 does not generate a magnetic attraction force on the permanent magnetic pin 461. At this time, the tension spring 462 drives the permanent magnetic pin 461 to move out of the locking hole 412, thereby unlocking the first piston 42 to facilitate the movement of the position of the first adjustment component.

[0053] like Figure 1 、 Figure 4 and Figure 5As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment of this embodiment, a pneumatic assembly is provided at the end of the harness insulation layer 10; the pneumatic assembly includes a valve body 91 and a valve core 92, and a first telescopic air tube 93 and a second telescopic air tube 94 arranged coaxially; the first telescopic air tube 93 is located within the second telescopic air tube 94; the first telescopic air tube 93 is communicated with the bellows 60; and the second telescopic air tube 94 is communicated with the first air cavity 411;

[0054] The valve body 91 is provided with an air chamber 911; the valve core 92 is rotatably arranged in the air chamber 911; the valve core 92 is provided with an air inlet valve 95 and an exhaust valve 96; one end of the first telescopic air tube 93 and one end of the second telescopic air tube 94 are both connected to the valve body 91; the other end of the first telescopic air tube 93 is fixedly penetrated into the first adjustment seat 41 and is connected to the bellows 60; the other end of the second telescopic air tube 94 is fixedly connected to the first adjustment seat 41 and is connected to the first air cavity 411; the valve body 91 extends with an air nozzle 912 that is connected to the air chamber 911.

[0055] Specifically, when the bellows 60 needs to be extended, the valve core 92 is rotated to make the position of the air inlet valve 95 correspond to the position of the first telescopic air tube 93. At this time, air is pumped into the air chamber 911 through the air nozzle 912, the air inlet valve 95 is opened, and the air enters the first telescopic air tube 93, and then enters the bellows 60 through the first telescopic air tube 93, thereby extending the bellows 60. When the bellows 60 needs to be shortened, the valve core 92 is rotated to make the position of the exhaust valve 96 correspond to the position of the first telescopic air tube 93, and then the air chamber 911 is evacuated, so that the exhaust valve 96 opens, and the gas in the bellows 60 enters the air chamber 911 through the first telescopic air tube 93 and is then discharged, thereby reducing the air pressure in the bellows 60 and shortening the bellows 60.

[0056] When the position of the second adjustment assembly needs to be fixed, the air inlet valve 95 is aligned with the position of the second telescopic air tube 94. At this time, air is pumped into the air chamber 911 through the air nozzle 912. The air inlet valve 95 is opened, and the air enters the second telescopic air tube 94 and then enters the first air cavity 411 through the second telescopic air tube 94. Part of the air enters the second air cavity 511 through the spiral air tube 80, thereby increasing the air pressure in the first air cavity 411 and the second air cavity 511 to P1, so that the second support block 54 extends. When the second adjustment assembly needs to be restored to a free state, the valve core 92 is rotated to align the position of the exhaust valve 96 with the second telescopic air tube 94. Then, the air in the air chamber 911 is evacuated, so that the exhaust valve 96 opens, and the air in the second air cavity 511 enters the first air cavity 411 through the spiral air tube 80. The air in the first air cavity 411 is discharged into the air chamber 911 through the second telescopic air tube 94, thereby reducing the air pressure in the second air cavity 511 to below P1, so that the second support block 54 retracts.

[0057] Similarly, when the position of the first adjustment component needs to be fixed, the air inlet valve 95 is aligned with the position of the second telescopic air tube 94. At this time, air is pumped into the air chamber 911 through the air nozzle 912, the air inlet valve 95 is opened, and the air enters the second telescopic air tube 94, and then enters the first air cavity 411 through the second telescopic air tube 94. Part of the air enters the second air cavity 511 through the spiral air tube 80, thereby increasing the air pressure in the first air cavity 411 and the second air cavity 511 to P2, so that the first support block 44 is extended. When an adjusting component returns to a free state, the valve core 92 is rotated so that the exhaust valve 96 corresponds to the position of the second telescopic air tube 94, and then the air chamber 911 is evacuated to open the exhaust valve 96. The gas in the second air cavity 511 enters the first air cavity 411 through the spiral air tube 80, and the gas in the first air cavity 411 is discharged into the air chamber 911 through the second telescopic air tube 94, thereby reducing the air pressure in the first air cavity 411 to below P2. When the electronically controlled locking component is not powered on, the first support block 44 retracts.

[0058] like Figure 4 As shown, in some embodiments of the endoscope harness with built-in rigidity adjustment, a rotating portion 921 is provided in the middle of the valve core 92; the rotating portion 921 is movable through the valve body 91 and then extends outside the valve body 91. The provision of the rotating portion 921 in this embodiment facilitates the user's rotation operation to switch the positions of the intake valve 95 and the exhaust valve 96.

[0059] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. An endoscope harness with built-in rigidity adjustment, characterized in that: It includes a wire harness insulation layer, a heat-hardening interlayer arranged in the wire harness insulation layer, and two heating elements arranged oppositely in the heat-hardening interlayer; A first adjusting component, a second adjusting component and a bellows connected between the first adjusting component and the second adjusting component are provided in the heat-hardened interlayer; The first adjustment assembly and the second adjustment assembly each include an adjustment seat, a piston, an elastic member, a support block and two electrodes; the adjustment seat is provided with an air cavity; The piston is movably arranged in the air cavity; the support block is movably arranged through the adjustment seat and is transmission-connected to the piston; the elastic member is arranged between the piston and the adjustment seat; two electrodes are arranged opposite to each other on the adjustment seat and are electrically connected, and are slidingly sleeved on the two heating elements in a one-to-one corresponding manner; The elastic member of the first adjustment assembly has a greater stiffness than the elastic member of the second adjustment assembly; the air cavity of the first adjustment assembly is connected to the air cavity of the second adjustment assembly; the first adjustment assembly is provided with an electrically controlled locking assembly electrically connected to the two electrodes and used to unlockably lock the piston; the adjustment seat of the second adjustment assembly is also provided with two conductive rings electrically connected to the two electrodes in a one-to-one correspondence; A wire core is passed through the heat-hardened interlayer along its axis; and two conductive layers corresponding to and electrically coupled with two conductive rings are arranged on the outer peripheral wall of the wire core.

2. The endoscope harness with built-in rigidity adjustment according to claim 1, characterized in that: The air cavity of the first regulating component is communicated with the air cavity of the second regulating component through a spiral air pipe; the spiral air pipe is wound around the outer circumference of the corrugated pipe.

3. The endoscope harness with built-in rigidity adjustment according to claim 1, characterized in that: The first adjustment assembly and the second adjustment assembly also include a driving block provided on the piston; the driving block is in transmission connection with the supporting block.

4. The endoscope harness with built-in rigidity adjustment according to claim 3, characterized in that: The driving block is provided with a first inclined surface; the supporting block is provided with a second inclined surface which is in sliding contact with the first inclined surface.

5. The endoscope harness with built-in rigidity adjustment according to claim 3, characterized in that: The two supporting blocks are arranged on the adjusting seat opposite to each other; and the two driving blocks are arranged on the piston opposite to each other.

6. The endoscope harness with built-in rigidity adjustment according to claim 5, characterized in that: A reset elastic piece is connected between the supporting block and the adjusting seat.

7. The endoscope harness with built-in rigidity adjustment according to claim 1, characterized in that: The electric-controlled locking assembly includes a permanent magnetic pin, a tension spring and an electromagnet; the piston of the first adjusting assembly is provided with a receiving hole; the permanent magnetic pin is slidably arranged in the receiving hole; the tension spring is arranged between the hole wall of the receiving hole and the permanent magnetic pin, so that the permanent magnetic pin is accommodated in the receiving hole; the electromagnet is arranged on the adjusting seat; the electromagnet is electrically connected to the two electrodes of the first adjusting assembly; the adjusting seat of the first adjusting assembly is provided with a locking hole; when the electromagnet is energized, the electromagnet generates a magnetic attraction force on the permanent magnetic pin, so that the permanent magnetic pin can overcome the action of the tension spring and extend out of the receiving hole and then be inserted into the locking hole.

8. An endoscope harness with built-in rigidity adjustment according to any one of claims 1 to 7, characterized in that: A pneumatic assembly is provided at the end of the wiring harness insulation layer; the pneumatic assembly includes a first telescopic air tube and a second telescopic air tube arranged coaxially; the first telescopic air tube is located in the second telescopic air tube; the first telescopic air tube is connected to the corrugated tube; the second telescopic air tube is connected to the air cavity of the first adjustment assembly.

9. The endoscope harness with built-in rigidity adjustment according to claim 8, characterized in that: The pneumatic component also includes a valve body and a valve core; the valve body is provided with an air chamber; the valve core is rotatably arranged in the air chamber; the valve core is provided with an air inlet valve and an exhaust valve; one end of the first telescopic air tube and one end of the second telescopic air tube are both connected to the valve body; the other end of the first telescopic air tube is fixedly penetrated into the adjustment seat of the first adjustment component and is connected to the bellows; the other end of the second telescopic air tube is fixedly penetrated into the adjustment seat of the first adjustment component and is connected to the air cavity of the first adjustment component; the valve body extends with an air nozzle connected to the air chamber.

10. The endoscope harness with built-in rigidity adjustment according to claim 9, characterized in that: A rotating part is provided in the middle of the valve core; the rotating part movably penetrates the valve body and then extends out of the valve body.

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