Rod conveying restraint device

Abstract

The present invention relates to a device for dynamically constraining the movement of a rod body, specifically a rod body conveying restraint device, comprising a scissor-fork mechanism, a restraint, a base and a rod body isolation sleeve, wherein both ends of the scissor-fork mechanism are connected to the base and can be extended and retracted forward and backward with the movement of the rod body (relative movement of the base), the restraint on the scissor-fork mechanism can dynamically constrain the rod body, and the rod body isolation sleeve on the rod body can achieve dynamic isolation. The present invention can effectively ensure the axial movement of the rod body, protect the rod body from buckling, enable the proximal force and displacement to be accurately and effectively transmitted to the distal end, facilitate the isolation of the rod body from the conveying restraint device itself, so as to avoid contamination from the rod body, reduce the need for disinfection, and facilitate the installation and disassembly of the rod body.

Description

Technical Field

[0001] The invention relates to a device for dynamically constraining the movement of a rod, in particular to a rod conveying constraint device, which can be used in the fields of medical equipment, robots, etc. Background Art

[0002] The rod body is relatively common. It may be a hard rigid body or a flexible body. It may have various types of cross-sectional shapes. It may be a solid structure or a hollow or multi-cavity structure. When the rod body is moving axially or rotating around the axis, if the main body lacks constraints, the rod body is prone to bending and deformation, which in turn affects the movement of the rod body or the transmission of force from the proximal end to the distal end. In the field of medical devices and robots, endoscopes, sheaths, puncture needles and other rod-body instruments are inserted into the human body and interact with human tissues under the guidance of medical images to perform minimally invasive diagnosis and treatment of diseases. They have the advantages of less trauma, accurate positioning, rapid onset and fewer complications. The rod body will be subject to certain resistance during the interventional delivery process, which can easily cause the rod body to deform, resulting in inaccurate transmission of movement and force, failure to achieve the expected action, and even causing internal damage to the rod body. Therefore, a constraint device is needed to constrain the delivered rod body.

[0003] The restraint device can dynamically restrain the rod during transportation to ensure that it does not bend and deform, and to ensure that the force and displacement at the proximal end can be accurately and effectively transmitted to the distal end. In addition, in the context of medical and robotic applications, the rod needs to be isolated to avoid a larger range of contamination of the external restraint or power device. In terms of ease of use, it is required that the rod and the restraint device can be quickly docked and detached. In the prior art, the rod is inserted into the restraint device as a whole without effective isolation, which increases the risk of infection control, and the installation and disassembly are also more cumbersome. In summary, the restraint device should meet the requirements of good force and displacement transmission performance, strong stability, light weight, easy disassembly and assembly, and convenient disinfection. Summary of the invention

[0004] In order to meet the use requirements of the restraint device, the purpose of the present invention is to provide a rod conveying restraint device, which ensures that the rod can only move axially and is not easily deformed by resistance, thereby protecting the rod from damage.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] The present invention comprises a scissors-fork mechanism, a restraining member, a base and a rod body isolation sleeve, wherein the scissors-fork mechanism comprises a scissors-fork unit and a gear scissors-fork plate, the scissors-fork unit is a plurality of units hinged in series, the scissors-fork units located at the front and rear ends are hinged with gear scissors-fork plates; the gear scissors-fork plates located at the front and rear ends are both installed with a base, the base and the scissors-fork mechanism are both installed with laterally openable restraining members, the outer cover of the transported rod body is provided with a rod body isolation sleeve, the transported rod body with the rod body isolation sleeve passes through each of the restraining members, and the rod body isolation sleeve is clamped by each of the restraining members; the scissors-fork unit is an "X"-shaped unit, namely comprising a scissors-fork bar and a scissors-fork plate, the upper and lower parts of the scissors-fork plate are respectively hinged with parallel scissors-fork bars whose horizontal plane projections overlap, the horizontal plane projections of the scissors-fork bars and the scissors-fork plates are in an "X" shape, and the scissors-fork units other than the scissors-fork units located at the front and rear ends are in an "X" shape. The two ends of the bar are respectively hinged to the scissors plates in the adjacent scissors-fork units, the two ends of the scissors plates in the remaining scissors-fork units except the scissors-fork units located at the front and rear ends are respectively hinged to the scissors bars in the adjacent scissors-fork units, one end of the scissors bar in the scissors-fork units located at the front and rear ends is hinged to the scissors plate in the adjacent scissors-fork unit, one end of the scissors plate in the scissors-fork units located at the front and rear ends is hinged to the scissors bar in the adjacent scissors-fork unit, the other end of the scissors bar and the other end of the scissors plate in the scissors-fork units located at the front and rear ends are respectively hinged with gear scissors plates, which are meshed with the gears on the gear scissors plates hinged to the scissors bars in the scissors-fork units located at the front and rear ends and the gears on the gear scissors plates hinged to the scissors plates in the scissors-fork units located at the front and rear ends; the relative movement of the base causes the scissors mechanism and the various constraints installed on the scissors mechanism to perform telescopic movement, constraining the transported rod body to move only along the axial direction.

[0007] Wherein: each of the scissor units is an "XX"-shaped unit composed of two mutually parallel "X"-shaped units, and the ends of the scissor plates in the two "X"-shaped units are hinged by a connecting frame; the gear scissor plates hinged to the "XX"-shaped units at the front and rear ends are two groups, each group consists of two parallel to each other, one end of the two gear scissor plates in each group is hinged to the scissor units at the front and rear ends, and the gear arranged at the other end is meshed with the gears arranged on the two gear scissor plates of the other group.

[0008] Both ends of the scissor plate are "U" shaped, and both ends of the "U" shaped opening and both ends of the scissor bar are provided with hinge holes for hinge connection with adjacent scissor units, and the middle of the scissor bar and the scissor plate are provided with middle holes.

[0009] The gear scissors plate is in the shape of an "I" character, and the ends of the "I" character that face outwards are non-gear ends and have hinge holes, which are hinged to the scissors units connected in series at the front and rear ends. The gears are provided at the ends of the "I" character that face inwards, and each gear is provided with a gear middle hole for hinged connection with the restraint member.

[0010] The restraining member includes a flap, a base and a limiting column A, one side of the flap is hinged to one side of the base, the other side of the flap is provided with a protrusion, the other side of the base is provided with a slot corresponding to the protrusion, and the protrusion is snapped into the slot when the restraining member is closed; the opposite surfaces of the flap and the base are provided with arc grooves, and the two arc grooves form cylindrical grooves for accommodating the transported rod body and the rod body isolation sleeve when the restraining member is closed; the bottom of the base of the restraining member installed on the scissors-fork unit is provided with a limiting column A hinged to the scissors-fork bar and the scissors-fork plate, and the bottom of the base of the restraining member installed on the base is provided with a limiting column A hinged to the gear scissors-fork plate, and the limiting column A hinged to the gear scissors-fork plate is plugged into the base.

[0011] The protrusion is located at the lower part of the other side of the flip cover, and the upper part of the other side of the flip cover is provided with a handle which provides a force point for pulling open the flip cover.

[0012] The base includes an upper base and a lower base, the upper base is installed in the middle of the gear shear plate, the lower base is installed below the gear shear plate, the upper part of the upper base is plugged into the restraint installed on the base, and the lower part of the upper base is plugged into the lower base.

[0013] The gear scissors plate is in the shape of an "I" character, and a hinge hole is opened at the outward end of the upper and lower sides of the "I" shape, and the gear is arranged at the inward end; an upper base is installed between the inward ends of the upper and lower sides of the "I" shape of the gear scissors plate which are respectively hinged to the other end of the scissors bar in the scissors unit at the front and rear ends and the other end of the scissors plate, and the upper surface of the upper base is opened with limiting holes A which are equal to the number of gears arranged at the inward end of the "I" shape of the gear scissors plate which are respectively hinged to the other end of the scissors bar in the scissors unit at the front and rear ends and the other end of the scissors plate, and the lower surface of the upper base is opened with The other end of the scissors bar and the other end of the scissors plate in the scissors-fork units located at the front and rear ends are respectively hinged to the gear scissors. The upper surface of the lower base is provided with limit columns B, which are equal to the number of the limit holes B and correspond to each other. Each of the limit columns B is passed through by the gear set at the inner end of the "I"-shaped lower edge of the gear scissors plate, which is respectively hinged to the other end of the scissors bar and the other end of the scissors plate in the scissors-fork units located at the front and rear ends, and then inserted into the corresponding limit hole B. The bottom plate of the lower base is provided with mounting holes for connection.

[0014] The rod body isolation sleeve is a strip-shaped cylinder. The portion of the rod body isolation sleeve clamped by the constraint member cannot be deformed, and the portion not clamped by the constraint member dynamically expands and contracts with the movement of the scissor-type mechanism, thereby dynamically isolating the transported rod body from the constraint member.

[0015] The advantages and positive effects of the present invention are:

[0016] 1. The present invention can dynamically constrain the delivery of the rod body, ensuring that the rod body can only move axially and is not easily deformed when encountering resistance, thereby protecting the rod body from damage, so that the force and displacement of the proximal end can be accurately and effectively transmitted to the distal end.

[0017] 2. The present invention facilitates the isolation of the rod body from the transport restraint device itself, thereby preventing the transport restraint device from being contaminated and reducing the disinfection range.

[0018] 3. The present invention facilitates installation and disassembly of the rod body, and in particular, allows for lateral installation and disassembly relative to the restraining device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the scissor-type fork mechanism of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the "X"-shaped unit of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the "XX"-shaped unit of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure after a plurality of "XX"-shaped units are combined in the present invention;

[0024] Figure 6 It is a structural cross-sectional view of the restraining member of the present invention;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention after the rod body isolation sleeve and the rod body are removed;

[0026] Figure 8 It is a structural schematic diagram of the rod body isolation sleeve of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the upper base of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the lower base of the present invention;

[0029] Among them: 1 is a scissor mechanism, 2 is a restraining member, 3 is a base, 4 is a rod isolation sleeve, 5 is a scissor unit, 6 is a gear scissor plate, 7 is a scissor bar, 8 is a scissor plate, 9 is an I-shaped frame, 10 is a flip cover, 11 is a base, 12 is a protrusion, 13 is a rectangular groove, 14 is a handle, 15 is an upper base, 16 is a lower base, 17 is a limit column A, 18 is an arc groove, 19 is a middle hole, 20 is a gear middle hole, 21 is a limit hole A, 22 is a limit hole B, 23 is a limit column B, 24 is a mounting hole, and 25 is a gear. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, the present invention includes a scissors-fork mechanism 1, a restraining member 2, a base 3 and a rod isolation sleeve 4, wherein the scissors-fork mechanism 1 includes a scissors-fork unit 5 and a gear scissors-fork plate 6, the scissors-fork unit 5 is a plurality of units hinged in series, the scissors-fork units 5 located at the front and rear ends are hinged with the gear scissors-fork plates 6; the gear scissors-fork plates 6 located at the front and rear ends are both installed with a base 3, the base 3 and the scissors-fork mechanism 1 are both installed with a laterally openable restraining member 2, a rod isolation sleeve 4 is provided outside the transported rod body, the transported rod body with the rod isolation sleeve 4 passes through each restraining member 2, and the rod isolation sleeve 4 is clamped by each restraining member 2.

[0032] The scissor unit 5 is an "X"-shaped unit, that is, it includes a scissor bar 7 and a scissor plate 8. The upper and lower parts of the scissor plate 8 are respectively hinged with parallel scissor bars 7 whose horizontal projections overlap. The projections of the scissor bars 7 and the scissor plates 8 on the horizontal plane are in an "X" shape. The two ends of the scissor bars 7 in the remaining scissor units 5 except the scissor units 5 at the front and rear ends are respectively hinged with the scissor plates 8 in the adjacent scissor units 5. The two ends of the scissor plates 8 in the remaining scissor units 5 except the scissor units 5 at the front and rear ends are respectively hinged with the adjacent scissor units. The scissor bar 7 in the element 5 is hinged, one end of the scissor bar 7 in the scissor unit 5 at the front and rear ends is hinged to the scissor plate 8 in the adjacent scissor unit 5, one end of the scissor plate 8 in the scissor unit 5 at the front and rear ends is hinged to the scissor bar 7 in the adjacent scissor unit 5, the other end of the scissor bar 7 in the scissor unit 5 at the front and rear ends and the other end of the scissor plate 8 are respectively hinged to the gear scissor plate 6, and the gear 25 on the gear scissor plate 6 hinged to the scissor bar 7 is meshed with the gear 25 on the gear scissor plate 6 hinged to the scissor plate 8. Figures 1 to 5As shown, each scissor unit 5 of this embodiment is an "XX"-shaped unit composed of two mutually parallel "X"-shaped units, that is, one scissor unit 5 has two parallel scissor plates 8, and each scissor plate 8 has a middle hole 19 in the middle position of the upper part and the middle position of the lower part; there are four scissor bars 7, two of which form a group, and a middle hole 19 is opened in the middle of each scissor bar 4. The two scissor bars 7 in a group are parallel to each other, and are hinged to the upper and lower sides of a scissor block 8 through the middle hole 19, and the projections on the horizontal plane overlap; the scissor bars 7 hinged above the two scissor plates 8 are parallel to each other, and the scissor bars 7 hinged below the two scissor plates 8 are parallel to each other. Both ends of the scissor plates 8 of this embodiment are "U"-shaped, and both ends of the "U"-shaped opening and the two ends of the scissor bars 7 are opened with hinge holes for hinge connection with adjacent scissor units 5. The ends of the scissor plates 8 in the two "X"-shaped units are hinged by a connecting frame. The connecting frame in this embodiment is an I-shaped frame 9, which is located in the "U"-shaped opening at each end of the two scissor plates 8. The four ends of the upper and lower sides of the I-shaped frame are respectively hinged to the hinge holes of the "U"-shaped openings of the two scissor plates 8 and the hinge holes of the scissor strips 7 at the same end. The gear scissor plates 6 hinged by the "XX"-shaped units at the front and rear ends of this embodiment are in two groups, and each group consists of two parallel to each other; the gear scissor plates 6 of this embodiment are in the shape of an "I" character, and the ends of the "I"-shaped upper and lower edges facing outwards are non-gear ends and have hinge holes, which are hinged to the ends of the two scissor bars 7 of the "XX"-shaped units in the scissor units 5 connected in series at the front and rear ends and the ends of the two scissor plates 8 of the "XX"-shaped units, and the ends of the "I"-shaped upper and lower edges facing inwards are provided with gears 25. There are a total of eight gears 25 on the two groups of four gear scissor plates 6, four on the upper and lower sides, and the upper two gears 25 on the two gear scissor plates 6 of each group are meshed with the upper two gears 25 on the two gear scissor plates 6 of the other group, and the lower two gears 25 on the two gear scissor plates 6 of each group are meshed with the lower two gears 25 on the two gear scissor plates 6 of the other group, and each gear 25 is provided with a gear middle hole 20 for hinged connection with the constraint member 2.

[0033] like Figures 1 to 6As shown, the restraining member 2 of this embodiment includes a flap 10, a base 11 and a limiting column A17. One side of the flap 10 is hinged to one side of the base 11. A protrusion 12 is provided at the lower part of the other side of the flap 10. A slot corresponding to the protrusion 12 is provided at the other side of the base 11 (the slot in this embodiment is a rectangular slot 13). The protrusion 12 is buckled in the slot when the restraining member 2 is closed to form an overall closure. A handle 14 is provided at the upper part of the other side of the flap 10, which can provide a force point for pulling open the flap 10, facilitating the rapid installation and removal of the rod body. The opposite surfaces of the flap 10 and the base 11 are both provided with arc grooves 18. The two arc grooves 18 form cylindrical grooves for accommodating the transported rod body and the rod body isolation sleeve 4 when the restraining member 2 is closed. Two limit columns A17 are hinged to the scissor bars 7 and scissor plates 8 in the "XX"-shaped unit at the bottom of the base 11 of the constraint part 2 installed on the scissor unit 5, and the limit columns A17 are hinged to the middle holes 19 on the scissor bars 7 and the scissor plates 8; four limit columns A17 are hinged to the gear middle holes 20 opened on the four gears 25 located at the upper part of the two sets of gear scissor plates 6 at the bottom of the base 11 of the constraint part 2 installed on the base 3.

[0034] The base 3 includes an upper base 15 and a lower base 16. The upper base 15 is installed in the middle of the gear shear plate 6, and the lower base 16 is installed below the gear shear plate 6. The upper part of the upper base 15 is plugged into the restraining member 2 installed on the base 3, and the lower part of the upper base 15 is plugged into the lower base 16. Figures 1 to 7 and Fig. 9 , Fig.10As shown, in this embodiment, an upper base 15 is installed between the inward ends of the "I"-shaped upper and lower edges of the gear scissors plate 6 which are respectively hinged to the other end of the scissors bar 7 of the "XX"-shaped unit in the scissors unit 5 located at the front and rear ends and the other end of the scissors plate 8. Specifically, the upper base 15 of this embodiment is installed between the upper four gears 25 and the lower four gears 25, and the upper surface of the upper base 15 is provided with limiting holes A21 equal to the number of gears 25 set at the inward end of the "I"-shaped upper edge of the gear scissors plate 6 which are respectively hinged to the other end of the scissors bar 7 of the "XX"-shaped unit in the scissors unit 5 located at the front and rear ends and the other end of the scissors plate 8. That is to say, a total of four gears 25 are set at the inward end of the "I"-shaped upper edge of the four gear scissors plates 6, and four limiting holes A21 are correspondingly opened on the upper surface of the upper base 15. The lower surface of the upper base 15 is provided with limiting holes B22 equal to the number of gears 25 provided at the inner end of the "I"-shaped lower edge of the gear scissor plate 6, which are respectively hinged to the other end of the scissor bar 7 of the "XX"-shaped unit in the scissor unit 5 at the front and rear ends and the other end of the scissor plate 8. In other words, a total of four gears 25 are provided at the inner end of the "I"-shaped lower edge of the four gear scissor plates 6, and four limiting holes B22 are correspondingly provided on the lower surface of the upper base 15. The four limiting columns A17 provided at the lower part of the base 11 of the constraint 2 installed on the base 3 pass through the gear middle holes 20 provided on the four gears 25 located at the upper part, and then are inserted into the four limiting holes A21 provided on the upper surface of the upper base 15, and are constrained by friction. The upper surface of the lower base 16 of the present embodiment is provided with limit posts B23, which are equal in number and correspond to the limit holes B22, that is, there are four limit posts B23, and each limit post B23 is respectively passed through the gear middle hole 20 opened on the four gears 25 arranged at the inner end of the "I"-shaped lower side of the gear scissor plate 6, which are respectively hinged to the other end of the scissor bar 7 of the "XX"-shaped unit in the scissor unit 5 at the front and rear ends and the other end of the scissor plate 8, and then inserted into the corresponding four limit holes B22 on the upper base 15, and constrained by friction. The bottom plate of the lower base 16 is provided with a mounting hole 24 for connection with other devices. The relative movement of the rod body and the base 3 causes the scissor mechanism 1 and the restraining members 2 installed on the scissor mechanism 1 to perform telescopic movement, constraining the transported rod body to move only in the axial direction.

[0035] like Figure 1 , Figure 7 and Fig.10 As shown, the rod body isolation sleeve 4 of this embodiment is a strip-shaped cylinder, which can be a strip-shaped cylindrical plastic film or a plastic bellows; the portion of the rod body isolation sleeve 4 clamped by the constraint part 2 cannot be deformed, and the portion not clamped by the constraint part 2 dynamically expands and contracts with the movement of the scissor-type mechanism 1, thereby dynamically isolating the transported rod body from the constraint part 2. At the same time, after the operation, only the rod body isolation sleeve 4 needs to be disinfected, and there is no need for large-scale disinfection, which provides convenience for disinfection work.

[0036] The working principle of the present invention is:

[0037] The rod body moves relative to the base 3 at both ends, and the gears 25 in the two sets of gear shear plates 6 at each end mesh with each other, and the gear shear plates 6 drive the "XX"-shaped units in each scissor unit 5 to extend and retract, and at the same time drive each constraint 2 to perform telescopic movement. The part of the rod body isolation sleeve 4 clamped by the constraint 2 cannot be deformed, and the part not clamped can be dynamically extended and retracted with the movement of the "XX"-shaped unit, dynamically constraining the transportation of the rod body, so that the transported rod body can only move axially and is not easily deformed by resistance, protecting the rod body from damage, and meeting the requirements of good force and displacement transmission performance, strong stability, light weight, and convenient installation and disinfection.

[0038] The "XX"-shaped unit in the scissors-type unit 5 can make the axial center lines of each constraint part 2 (i.e., the axial center lines of the rod body) collinear and parallel to the vertical symmetry plane of the conveying constraint device; combined with the gear scissors-type plate 6 meshing at both ends, the axial center lines of each constraint part 2 can be collinear and located on the vertical symmetry plane of the conveying constraint device.

[0039] The present invention is applicable to rods of soft and hard materials, solid, hollow or multi-cavity structures.

Claims

1. A rod conveying restraint device, characterized in that: The invention comprises a scissor mechanism (1), a restraining member (2), a base (3) and a rod body isolation sleeve (4), wherein the scissor mechanism (1) comprises a scissor unit (5) and a gear scissor plate (6), the scissor unit (5) is a plurality of scissor units (5) which are hinged in series, and the scissor units (5) located at the front and rear ends are hinged with the gear scissor plates (6); the gear scissor plates (6) located at the front and rear ends are both installed with a base (3), and the base (3) and the scissor mechanism (1) are both installed with a restraining member (2) which can be opened laterally; the rod body to be transported is provided with a rod body isolation sleeve (4), and the rod body is provided with the restraining member (2) which can be opened laterally; The rod body to be transported of the rod body isolation sleeve (4) passes through each of the restraining members (2), and the rod body isolation sleeve (4) is clamped by each of the restraining members (2); the scissor-fork unit (5) is an "X"-shaped unit, that is, it includes a scissor-fork bar (7) and a scissor-fork plate (8), and the upper and lower parts of the scissor-fork plate (8) are respectively hinged with parallel scissor-fork bars (7) whose horizontal plane projections overlap, and the projections of the scissor-fork bars (7) and the scissor-fork plate (8) on the horizontal plane are in an "X" shape. Except for the scissor-fork units (5) located at the front and rear ends, the two ends of the scissor-fork bars (7) in the remaining scissor-fork units (5) are The two ends of the scissor plates (8) in the scissor units (5) other than the scissor units (5) at the front and rear ends are respectively hinged to the scissor bars (7) in the adjacent scissor units (5); one end of the scissor bars (7) in the scissor units (5) at the front and rear ends is hinged to the scissor plates (8) in the adjacent scissor units (5); one end of the scissor plates (8) in the scissor units (5) at the front and rear ends is hinged to the scissor bars (7) in the adjacent scissor units (5); the scissor units (5) at the front and rear ends are respectively hinged to the scissor bars (7) in the adjacent scissor units (5); ) and the other end of the scissor bar (7) and the other end of the scissor plate (8) are respectively hinged with a gear scissor plate (6), which meshes with the gear (25) on the gear scissor plate (6) hinged with the scissor bar (7) in the scissor unit (5) located at the front and rear ends and the gear (25) on the gear scissor plate (6) hinged with the scissor plate (8) in the scissor unit (5) located at the front and rear ends; the relative movement of the base (3) causes the scissor mechanism (1) and each constraint member (2) installed on the scissor mechanism (1) to perform telescopic movement, thereby constraining the transported rod body to move only in the axial direction; The restraining member (2) comprises a flip cover (10), a base (11) and a limiting column A (17); one side of the flip cover (10) is hinged to one side of the base (11); the other side of the flip cover (10) is provided with a protrusion (12); the other side of the base (11) is provided with a slot corresponding to the protrusion (12); the protrusion (12) is snapped into the slot when the restraining member (2) is closed; the opposing surfaces of the flip cover (10) and the base (11) are both provided with arc grooves (18); the two arc grooves (18) are arranged at the sides thereof; When the restraining member (2) is closed, a cylindrical groove is formed to accommodate the rod body and the rod body isolation sleeve (4) to be transported; the bottom of the base (11) of the restraining member (2) installed on the scissor unit (5) is provided with a limit column A (17) hinged to the scissor bar (7) and the scissor plate (8); the bottom of the base (11) of the restraining member (2) installed on the base (3) is provided with a limit column A (17) hinged to the gear scissor plate (6); the limit column A (17) hinged to the gear scissor plate (6) is plugged into the base (3).

2. The rod conveying restraint device according to claim 1, characterized in that: Each of the scissor units (5) is an "XX"-shaped unit composed of two mutually parallel "X"-shaped units, and the ends of the scissor plates (8) in the two "X"-shaped units are hinged via a connecting frame; the gear scissor plates (6) hinged to the "XX"-shaped units at the front and rear ends are two groups, each group is two mutually parallel, one end of the two gear scissor plates (6) in each group is hinged to the scissor units (5) at the front and rear ends, and the gear (25) arranged at the other end is meshed with the gear (25) arranged on the two gear scissor plates (6) of the other group.

3. The rod conveying restraint device according to claim 1 or 2, characterized in that: Both ends of the scissor plate (8) are in a "U" shape, and both ends of the "U"-shaped opening and both ends of the scissor bar (7) are provided with hinge holes for hinge connection with adjacent scissor units (5), and the middle of the scissor bar (7) and the scissor plate (8) are provided with a middle hole (19).

4. The rod conveying restraint device according to claim 1 or 2, characterized in that: The gear scissor plate (6) is in the shape of an "I" character, and the ends of the "I" character facing outwards are non-gear ends and have hinge holes, and are hingedly connected to the scissor units (5) connected in series at the front and rear ends. The ends of the "I" character facing inwards are provided with the gears (25), and each gear (25) is provided with a gear middle hole (20) for hinged connection with the restraining member (2).

5. The rod conveying restraint device according to claim 1, characterized in that: The protrusion (12) is located at the lower part of the other side of the flip cover (10), and the upper part of the other side of the flip cover (10) is provided with a handle (14) that provides a force point for pulling open the flip cover (10).

6. The rod conveying restraint device according to claim 1, characterized in that: The base (3) comprises an upper base (15) and a lower base (16); the upper base (15) is installed in the middle of the gear shear plate (6); the lower base (16) is installed below the gear shear plate (6); the upper part of the upper base (15) is plugged into a restraining member (2) installed on the base (3); and the lower part of the upper base (15) is plugged into the lower base (16).

7. The rod conveying restraint device according to claim 6, characterized in that: The gear scissor plate (6) is in the shape of an "I" character, and a hinge hole is formed at one end of the "I" character facing outward, and the gear (25) is provided at the other end facing inward. An upper base (15) is installed between the ends of the "I" character of the gear scissor plate (6) that are respectively hinged to the other end of the scissor bar (7) in the scissor unit (5) at the front and rear ends and the other end of the scissor plate (8). The upper surface of the upper base (15) is provided with a number of limit holes A (21) that is equal to the number of gears (25) provided at the other end of the "I" character of the gear scissor plate (6) that are respectively hinged to the other end of the scissor bar (7) in the scissor unit (5) at the front and rear ends and the other end of the scissor plate (8). The lower surface of the upper base (15) is provided with a number of limit holes A (21) that is equal to the number of gears (25) provided at the other end of the "I" character of the gear scissor plate (6) that are respectively hinged to the other end of the scissor bar (7) in the scissor unit (5) at the front and rear ends. The other end of the scissor bar (7) in the scissor unit (5) and the other end of the scissor plate (8) are respectively hinged to the gear scissor plate (6) with an "I" shape and an inner end thereof, and the number of limit holes B (22) is equal to the number of gears (25) arranged at the inner end of the "I" shape lower edge of the gear scissor plate (6); the upper surface of the lower base (16) is provided with limit columns B (23) with an equal number of limit holes B (22) and corresponding to each other; each limit column B (23) is respectively passed through by a gear (25) arranged at the inner end of the "I" shape lower edge of the gear scissor plate (6) with an "I" shape and an inner end thereof, and then inserted into the corresponding limit hole B (22); the bottom plate of the lower base (16) is provided with a mounting hole (24) for connection.

8. The rod conveying restraint device according to claim 1, characterized in that: The rod body isolation sleeve (4) is a strip-shaped cylinder; the portion of the rod body isolation sleeve (4) clamped by the constraint member (2) cannot be deformed, and the portion not clamped by the constraint member (2) dynamically expands and contracts with the movement of the scissor-type mechanism (1), thereby achieving dynamic isolation between the transported rod body and the constraint member (2).

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