CN219439259U - Drag hook device - Google Patents

Abstract

The utility model provides a retractor, which relates to the technical field of medical appliances and comprises: a mounting base plate; the top end surface of the mounting bottom plate is fixedly connected with a mounting column in the middle; a limiting frame is fixedly connected with the bottom end surface of the mounting bottom plate in the middle; the limit frame is of a U-shaped block structure; a support column is connected in the inner slide of the mounting column; the top end surface of the support column is fixedly connected with a connecting arm; the front part of the connecting arm is provided with a swinging arm; the front end surface of the swing arm is fixedly connected with a mounting frame; two sliding seats are symmetrically and slidably connected in the mounting frame. Pulling the control shifting ring makes the control shifting ring extrude the swing plate to enable the fixed plug block to separate from the fixed clamping groove, so that medical staff can quickly take down the mounting plate to clean the drag hook head, and the problem that medical staff also needs to clean and disinfect the telescopic rod and the fixing frame fixed with the drag hook head in the process of cleaning and disinfecting the drag hook head is solved.

Description

Drag hook device

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a retractor.

Background

Medical personnel pull open and fix patient's incision in order to the convenience when carrying out the hepatobiliary surgery, medical personnel can use the retractor to make things convenient for medical personnel to pull back patient's incision and also not hinder medical personnel to run through patient's hepatobiliary condition simultaneously, current retractor comprises mount, telescopic link and drag hook head usually, fixes the position of drag hook head through the mount in-process of using, then with the incision skin contact of drag hook head and patient and adjust the incision of patient through the position of telescopic link to the drag hook head and pull open.

For example: the utility model discloses a liver and gall surgery retractor with the application number of CN202022681224.7, which comprises a fixed ring, a retractor and a pull rod, wherein movable grooves are symmetrically formed in the retractor, the pull rod is positioned in the movable grooves, a limiting block is fixedly arranged on the outer surface of the pull rod, a spring is sleeved on one side of the outer surface of the pull rod, which is positioned on the limiting block, and a fixed seat is fixedly arranged on the top end of the pull rod on the outer ring surface of the fixed ring; through light pulling handle, make it drive the pull rod and move to the outside, the organ around the usable drag hook pulls open, will support the pole again and run through the fixing base, and the inside of its bottom through-hole is fixed, thereby realize the drag hook and pull open the back fixed, more be convenient for medical personnel freely operate and observe, utilize a plurality of holes to fix simultaneously, adapt to different pulling distances, avoid tension to be violent, cause secondary damage, can adjust by oneself more actual demand, the operation is more convenient, the practical effect is stronger.

However, for the traditional retractor, after the retractor is used, medical staff usually needs to clean and disinfect the retractor after the retractor is used, but the retractor head of the traditional retractor is usually fixedly connected with the telescopic rod, and in the process of cleaning and disinfecting the retractor head, the medical staff also needs to clean and disinfect the telescopic rod and the fixing frame which are fixed with the retractor head, so that the operation is complex, and the labor intensity of staff is high.

Disclosure of Invention

In view of the above, the utility model provides a retractor which is provided with a mounting plate which is convenient for medical staff to quickly take down a retractor head, after the retractor is used, the medical staff only needs to pull a control shifting ring to enable the control shifting ring to slide in an auxiliary frame and extrude an auxiliary spring, a conical groove on the inner side of the control shifting ring can extrude a swinging plate along with the sliding of the control shifting ring, the swinging plate swings in the auxiliary frame and stretches a reset spring, a fixed insert block is separated from a fixed clamping groove along with the swinging of the swinging plate, at the moment, the medical staff can quickly take down the mounting plate to clean the retractor head, the operation is simple and quick, the use is more convenient, and the labor intensity of the medical staff is effectively reduced.

The utility model provides a retractor, which comprises: a mounting base plate; the top end surface of the mounting bottom plate is fixedly connected with a mounting column in the middle; a limiting frame is fixedly connected with the bottom end surface of the mounting bottom plate in the middle; the limit frame is of a U-shaped block structure; a support column is connected in the inner slide of the mounting column; the top end surface of the support column is fixedly connected with a connecting arm; the front part of the connecting arm is provided with a swinging arm; the front end surface of the swing arm is fixedly connected with a mounting frame; two sliding seats are symmetrically and slidingly connected in the mounting frame; an auxiliary frame is fixedly connected with the inner sides of the two sliding seats in the middle; the inner sides of the two auxiliary frames are provided with a mounting plate; the bottom end surfaces of the two mounting plates are fixedly connected with a hook head.

Optionally, a limiting clamping plate is slidably connected to the limiting frame; the bottom end surface of the limiting clamp plate is fixedly connected with a feed screw; the feeding screw is in threaded connection with the bottom end surface of the limiting frame in the middle; the lower part of the feed screw is fixedly connected with an operation handle.

Optionally, a control screw is rotatably connected to the rear part of the top end surface of the mounting bottom plate; the bottom end surface of the support column is fixedly connected with a lifting seat; the rear part of the lifting seat is fixedly connected with a lifting frame in the middle; an auxiliary chute is arranged at the center of the rear part of the mounting column; the lifting frame is connected in the auxiliary chute in a sliding way; the rear part of the lifting frame is connected with the outside of the control screw rod in a threaded way.

Optionally, the front part of the connecting arm is rotatably connected with a fixed rotating shaft; the swing arm is fixedly connected to the outside of the fixed rotating shaft; four guide sliding grooves are formed in the fixed rotating shaft in an annular array shape; a guide sliding plate is connected in a sliding way in the four guide sliding grooves; the bottom end surface of the guide sliding plate is fixedly connected with a supporting spring in the middle; the tail end of the supporting spring is fixedly connected to the bottom end surface of the fixed rotating shaft; an auxiliary rotating shaft is fixedly connected to the top end surface of the guide sliding plate; the front part of the top end face of the connecting arm is provided with a group of fixed slots in an annular array shape; the upper part of the auxiliary rotating shaft is fixedly connected with a connecting plate; two fixed inserted bars are symmetrically arranged on the bottom end surface of the connecting plate; the two fixed inserting rods are inserted into the fixed slots.

Optionally, a group of limiting latches are fixedly connected to the top end surfaces of the two sliding seats; the two groups of limit latches are of wedge-shaped tooth structures; two limiting clamping plates are connected in the top end surface of the mounting frame in a sliding manner; the two limiting clamping plates are rectangular block structures with wedge-shaped bottoms; the two limiting clamping plates are respectively inserted into the two groups of limiting clamping teeth; the top end surfaces of the two limiting clamping plates are fixedly connected with an auxiliary plate; the bottom end surfaces of the two auxiliary plates are symmetrically and fixedly connected with a group of connecting springs; the end of two sets of connecting springs is all fixed connection at the terminal surface of mounting bracket.

Optionally, a group of swinging plates are rotatably connected in an annular array in the two auxiliary frames; a group of fixed inserting blocks are fixedly connected to the outer sides of the two groups of swinging plates; a group of fixing clamping grooves are formed in the upper parts of the two mounting plates in an annular array shape; the two groups of fixed inserting blocks are respectively inserted into the two groups of fixed clamping grooves; the outer sides of the front parts of the two groups of swing plates are fixedly connected with a group of return springs; the tail ends of the two groups of reset springs are respectively and fixedly connected in the two auxiliary frames; a control shifting ring is connected in the two auxiliary frames in a sliding way; the inner sides of the two control shifting rings are provided with a conical groove; the conical grooves on the inner sides of the two control shifting rings are respectively contacted with the outer parts of the two groups of swinging plates; the outer sides of the two control shifting rings are fixedly connected with a group of auxiliary springs; the tail ends of the two groups of auxiliary springs are respectively and fixedly connected in the two auxiliary frames.

Advantageous effects

The utility model is convenient for medical staff to take down the hook head to carry out independent cleaning and disinfection on the groove head in the using process, does not need to carry out cleaning and disinfection on the whole retractor, has simple and quick operation, is more convenient to use, effectively reduces the labor intensity of the medical staff, can facilitate the medical staff to pull open and fix the incision of a patient, is more convenient to operate, and effectively improves the practicability of the retractor.

In addition, after the retractor is used, medical staff only needs to pull the control shifting ring to enable the control shifting ring to slide in the auxiliary frame and extrude the auxiliary spring, the conical groove on the inner side of the control shifting ring can extrude the swinging plate along with the sliding control shifting ring of the control shifting ring, the swinging plate swings in the auxiliary frame and stretches the reset spring, the fixed plug blocks are separated from the fixed clamping groove along with the swinging of the swinging plate, at the moment, the medical staff can quickly take down the mounting plate to clean the retractor head, the operation is simple and quick, the use is more convenient, and the labor intensity of the medical staff is effectively reduced.

In addition, when pulling out the abdominal wall of patient, medical personnel only need to stimulate the sliding seat and can make spacing latch extrusion spacing cardboard make spacing cardboard slip and extrusion coupling spring in the mounting bracket along with the removal of sliding seat, make the hook head pull open patient by the skin that cuts along with the removal of sliding seat, only need loosen the sliding seat when patient's incision pulls open to the limit, because spacing latch is one-way meshing with the spacing cardboard of wedge bottom, consequently can carry out the locking fixed to the position of sliding seat through the cooperation of spacing latch and spacing cardboard, make notched position unable pull back the hook head to the normal position, make things convenient for medical personnel to pull open and fix patient's incision, convenient operation is swift.

In addition, medical personnel can make supplementary pivot through pulling supplementary pivot slide in fixed pivot, can make the direction slide along the direction spout and tensile support spring provide the direction for supplementary pivot at the gliding in-process of supplementary pivot, can make fixed inserted bar break away from fixed slot at the gliding in-process of supplementary pivot, and medical personnel can rotate fixed pivot this moment, drive the swing arm through the rotation of fixed pivot and swing, make things convenient for medical personnel to adjust the angle of drag hook ware, the effectual practicality that improves the drag hook ware.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings of the embodiments will be briefly described below.

In the drawings:

FIG. 1 is a schematic diagram of an axial structure of the present utility model.

Fig. 2 is a schematic diagram of the rear-view isometric structure of the present utility model.

Fig. 3 is a schematic cross-sectional view of the connecting arm of the present utility model.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 at a in accordance with the present utility model.

Fig. 5 is a schematic diagram of the axial structure of the mounting frame of the present utility model.

Fig. 6 is an enlarged schematic view of the structure of fig. 5B according to the present utility model.

Fig. 7 is a schematic cross-sectional view of the auxiliary frame of the present utility model.

Fig. 8 is an enlarged schematic view of the structure of fig. 7 at C according to the present utility model.

List of reference numerals

1. A mounting base plate; 101. a limiting frame; 102. limiting clamping plates; 103. a feed screw; 104. a mounting column; 105. an auxiliary chute; 106. a lifting seat; 107. a control screw; 108. a lifting frame; 109. a support column; 110. a connecting arm; 111. fixing the rotating shaft; 112. a guide chute; 113. a guide slide plate; 114. a support spring; 115. an auxiliary rotating shaft; 116. a fixed slot; 117. a connecting plate; 118. fixing the inserted link; 119. a swing arm; 120. a mounting frame; 121. a sliding seat; 122. limiting latch teeth; 123. a limiting clamping plate; 124. an auxiliary plate; 125. a connecting spring; 126. an auxiliary frame; 127. a swinging plate; 128. fixing the insert block; 129. controlling a shifting ring; 130. an auxiliary spring; 131. a mounting plate; 132. a fixing slot; 133. a return spring; 134. a hook head.

Detailed Description

In order to make the objects, aspects and advantages of the technical solution of the present utility model more clear, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiment of the present utility model. Unless otherwise indicated, terms used herein have the meaning common in the art. Like reference numerals in the drawings denote like parts.

Examples: please refer to fig. 1 to 8:

the utility model provides a retractor, comprising: a mounting base plate 1;

a mounting column 104 is fixedly connected with the top end surface of the mounting bottom plate 1 in the middle; a limiting frame 101 is fixedly connected with the bottom end surface of the mounting bottom plate 1 in the middle; the limiting frame 101 is of a U-shaped block structure; a support column 109 is connected to the inner slide of the mounting column 104; a connecting arm 110 is fixedly connected to the top end surface of the supporting column 109; the front part of the connecting arm 110 is provided with a swing arm 119; the front end surface of the swing arm 119 is fixedly connected with a mounting frame 120; two sliding seats 121 are symmetrically and slidably connected in the mounting frame 120; an auxiliary frame 126 is fixedly connected to the inner sides of the two sliding seats 121 in the middle; a mounting plate 131 is arranged on the inner sides of the two auxiliary frames 126; a hook head 134 is fixedly connected to the bottom end surfaces of the two mounting plates 131.

In addition, according to the embodiment of the present utility model, as shown in fig. 1 and 2, a limiting clamp plate 102 is slidably connected to the limiting frame 101; the bottom end surface of the limiting clamp plate 102 is fixedly connected with a feed screw 103; the feed screw 103 is in threaded connection with the bottom end surface of the limit frame 101 in the middle; the lower part fixedly connected with operation handle of feed screw 103 to when using the drag hook ware in the hepatobiliary surgery in-process, medical personnel can place the drag hook ware to the edge of operating table through spacing 101, rotate operation handle messenger operation handle and drive feed screw 103 and rotate afterwards, drive limiting splint 102 and slide in spacing 101 through the rotation of feed screw 103, fix the drag hook ware on the edge of operating table through gliding limiting splint 102, make things convenient for the follow-up use to the drag hook ware of medical personnel.

Further, according to the embodiment of the present utility model, as shown in fig. 1 and 2, a control screw 107 is rotatably connected to the rear portion of the top end face of the mounting base plate 1; the bottom end surface of the supporting column 109 is fixedly connected with a lifting seat 106; a lifting frame 108 is fixedly connected to the rear part of the lifting seat 106 in the middle; an auxiliary chute 105 is arranged at the center of the rear part of the mounting column 104; the lifting frame 108 is slidably connected in the auxiliary chute 105; the rear portion threaded connection of crane 108 is in the outside of control screw 107 to at the in-process that the drag hook ware used, make control screw 107 drive crane 108 through rotating control screw 107 and slide in supplementary spout 105, drive lifting seat 106 through the slip of crane 108 and slide in erection column 104, drive support column 109 through the slip of lifting seat 106 and lift in erection column 104, make things convenient for medical personnel to adjust the height of drag hook ware according to the patient's size, easy operation is swift, and it is more convenient to use.

Further, according to the embodiment of the present utility model, as shown in fig. 3 and 4, a fixed rotation shaft 111 is rotatably coupled to the front portion of the connection arm 110; the swing arm 119 is fixedly connected to the outside of the fixed rotating shaft 111; four guide sliding grooves 112 are formed in the fixed rotating shaft 111 in an annular array shape; a guide sliding plate 113 is connected in a sliding way in the four guide sliding grooves 112; the bottom end surface of the guide sliding plate 113 is fixedly connected with a supporting spring 114 in the middle; the end of the supporting spring 114 is fixedly connected to the bottom end surface of the fixed rotating shaft 111; an auxiliary rotating shaft 115 is fixedly connected to the top end surface of the guide sliding plate 113; the front part of the top end of the connecting arm 110 is provided with a group of fixing slots 116 in an annular array shape; a connection plate 117 is fixedly connected to the upper part of the auxiliary rotating shaft 115; two fixed inserted bars 118 are symmetrically arranged on the bottom end surface of the connecting plate 117; two fixed inserted bars 118 are all pegged graft in fixed slot 116 to at the in-process that the retractor used, medical personnel can stimulate supplementary pivot 115 and make supplementary pivot 115 slide in fixed pivot 111, can make direction slide 113 slide and extension support spring 114 provide the direction for supplementary pivot 115 along direction spout 112 at the gliding in-process of supplementary pivot 115, can make fixed inserted bar 118 break away from fixed slot 116 at the gliding in-process of supplementary pivot 115, and medical personnel can rotate fixed pivot 111 this moment, drive swing arm 119 through the rotation of fixed pivot 111 and swing, make things convenient for medical personnel to adjust the angle of retractor, the effectual practicality that improves the retractor.

In addition, according to the embodiment of the present utility model, as shown in fig. 5 and 6, a set of limiting latches 122 are fixedly connected to the top end surfaces of the two sliding seats 121; both sets of limiting latches 122 are wedge-shaped teeth; two limiting clamping plates 123 are connected in the top end surface of the mounting frame 120 in a sliding manner; the two limiting clamping plates 123 are rectangular block structures with wedge-shaped bottoms; the two limiting clamping plates 123 are respectively inserted into the two groups of limiting clamping teeth 122; the top end surfaces of the two limiting clamping plates 123 are fixedly connected with an auxiliary plate 124; a group of connecting springs 125 are symmetrically and fixedly connected to the bottom end surfaces of the two auxiliary plates 124; the end of two sets of coupling springs 125 is all fixed connection at the top face of mounting bracket 120 to when drawing open patient's abdominal wall, medical personnel only need pull slide holder 121 and can make spacing latch 122 extrusion spacing cardboard 123 make spacing cardboard 123 slide and extrusion coupling springs 125 in mounting bracket 120 along with the removal of slide holder 121, make drag hook head 134 pull open patient's incised skin along with the removal of slide holder 121, only need unclamp slide holder 121 when patient's incision pulls open to the limit, because spacing latch 122 is the unidirectional engagement with wedge-shaped spacing cardboard 123 in the bottom, consequently, can carry out the locking fixed to the position of slide holder 121 through the cooperation of spacing latch 122 and spacing cardboard 123, make notched position unable pull back to the normal position with drag hook head 134, make things convenient for medical personnel to pull open and fix patient's incision, convenient for operation is swift.

In addition, according to the embodiment of the present utility model, as shown in fig. 7 and 8, a group of swing plates 127 are rotatably connected in an annular array in each of the two auxiliary frames 126; a group of fixed inserting blocks 128 are fixedly connected to the outer sides of the two groups of swinging plates 127; a group of fixing clamping grooves 132 are formed in the upper parts of the two mounting plates 131 in an annular array shape; the two groups of fixed plug blocks 128 are respectively inserted into the two groups of fixed clamping grooves 132; a group of return springs 133 are fixedly connected to the outer sides of the front portions of the two groups of swing plates 127; the tail ends of the two groups of return springs 133 are fixedly connected in the two auxiliary frames 126 respectively; a control dial ring 129 is slidably connected to both auxiliary frames 126; a conical groove is formed on the inner sides of the two control shifting rings 129; the conical grooves on the inner sides of the two control dials 129 are respectively contacted with the outer parts of the two groups of swing plates 127; a group of auxiliary springs 130 are fixedly connected to the outer sides of the two control dials 129; the end of two sets of auxiliary springs 130 is fixed connection respectively in two auxiliary frames 126 to after the retractor is used, medical personnel only need to pull control shifting ring 129 and make control shifting ring 129 slide and extrude auxiliary springs 130 in auxiliary frame 126, along with the inboard conical slot of control shifting ring 129 can extrude swinging plate 127, make swinging plate 127 swing and tensile reset spring 133 in auxiliary frame 126, along with the swing of swinging plate 127 makes fixed insert 128 break away from in fixed draw-in groove 132, at this moment medical personnel can take off mounting panel 131 fast and clear up drag hook head 134, easy operation is swift, and it is more convenient to use, has effectually reduced medical personnel's intensity of labour.

Specific use and action of the embodiment:

in the using process of the utility model, when the retractor is used in the hepatobiliary surgery process, medical staff can place the retractor at the edge of an operating table through the limit frame 101, then rotate the operating handle to drive the feed screw 103 to rotate, drive the limit clamping plate 102 to slide in the limit frame 101 through the rotation of the feed screw 103, fix the retractor at the edge of the operating table through the sliding limit clamping plate 102, facilitate the subsequent use of the retractor by the medical staff, in the using process of the retractor, drive the lifting frame 108 to slide in the auxiliary sliding groove 105 through the rotation of the control screw 107, drive the lifting seat 106 to slide in the mounting column 104 through the sliding of the lifting frame 108, drive the supporting column 109 to lift in the mounting column 104 through the sliding of the lifting seat 106, the height of the retractor is conveniently adjusted by medical staff according to the body shape of a patient, the operation is simple and quick, the use is more convenient, the medical staff can pull the auxiliary rotating shaft 115 to enable the auxiliary rotating shaft 115 to slide in the fixed rotating shaft 111, the guide sliding plate 113 can slide along the guide sliding groove 112 and stretch the supporting spring 114 to provide guide for the auxiliary rotating shaft 115 in the sliding process of the auxiliary rotating shaft 115, the fixed inserting rod 118 can be separated from the fixed inserting groove 116 in the sliding process of the auxiliary rotating shaft 115, at the moment, the medical staff can rotate the fixed rotating shaft 111, the swing arm 119 is driven to swing through the rotation of the fixed rotating shaft 111, the angle of the retractor is conveniently adjusted by the medical staff, the practicality of the retractor is effectively improved, when the abdomen wall of the patient is pulled open, the medical staff only need pull sliding seat 121 along with the removal of sliding seat 121 can make spacing latch 122 extrude spacing cardboard 123 and make spacing cardboard 123 slide and extrude connecting spring 125 in mounting bracket 120, along with the removal of sliding seat 121 make drag hook head 134 draw open patient's skin by cutting, only need unclamp sliding seat 121 when patient's incision pulls open to the limit, because spacing latch 122 is wedge-shaped spacing cardboard 123 with the bottom for one-way meshing, consequently, can carry out the locking fixed to the position of sliding seat 121 through spacing latch 122 and spacing cardboard 123's cooperation, make notched position unable pull back hook head 134 to the normal position, make things convenient for medical staff to pull open and fix patient's incision, convenient operation is swift, after the drag hook ware uses to accomplish, medical staff only need pulling control shifting ring 129 makes control shifting ring 129 slide and extrude auxiliary spring 130 in auxiliary frame 126, along with the inboard conical slot of control shifting ring 129 can extrude swing plate 127, make swing plate 127 swing and extension reset spring 133 in auxiliary frame 126, along with swing plate 127 makes swing block make fixed plug 132 break away from fixed slot 128 to draw hook head 134 to take out of patient's incision, medical staff's incision can be more convenient for use, medical staff's operation is swift, medical staff's convenient for use, and has reduced the operation is easy to use, and has reduced the medical staff's operation is convenient.

Claims (6)

1. A retractor, comprising: a mounting base plate (1); the top end surface of the mounting bottom plate (1) is fixedly connected with a mounting column (104) in the middle; a limiting frame (101) is fixedly connected with the bottom end surface of the mounting bottom plate (1) in the middle; the limit frame (101) is of a U-shaped block structure; a supporting column (109) is connected in the inner sliding way of the mounting column (104); the top end surface of the supporting column (109) is fixedly connected with a connecting arm (110); the front part of the connecting arm (110) is provided with a swinging arm (119); the front end surface of the swing arm (119) is fixedly connected with a mounting frame (120); two sliding seats (121) are symmetrically and slidably connected in the mounting frame (120); an auxiliary frame (126) is fixedly connected to the inner sides of the two sliding seats (121) in the middle; the inner sides of the two auxiliary frames (126) are respectively provided with a mounting plate (131); the bottom end surfaces of the two mounting plates (131) are fixedly connected with a hook head (134).

2. A retractor according to claim 1, wherein: a limiting clamping plate (102) is connected in a sliding manner in the limiting frame (101); the bottom end surface of the limiting clamp plate (102) is fixedly connected with a feed screw (103); the feeding screw (103) is in threaded connection with the bottom end surface of the limiting frame (101) in the middle; an operation handle is fixedly connected to the lower part of the feed screw (103).

3. A retractor according to claim 1, wherein: a control screw (107) is rotatably connected to the rear part of the top end surface of the mounting bottom plate (1); the bottom end surface of the supporting column (109) is fixedly connected with a lifting seat (106); the rear part of the lifting seat (106) is fixedly connected with a lifting frame (108) in the middle; an auxiliary chute (105) is arranged at the center of the rear part of the mounting column (104); the lifting frame (108) is connected in the auxiliary chute (105) in a sliding way; the rear part of the lifting frame (108) is connected with the outside of the control screw rod (107) in a threaded way.

4. A retractor according to claim 1, wherein: the front part of the connecting arm (110) is rotatably connected with a fixed rotating shaft (111); the swing arm (119) is fixedly connected to the outside of the fixed rotating shaft (111); four guide sliding grooves (112) are formed in the fixed rotating shaft (111) in an annular array shape; a guide sliding plate (113) is connected in a sliding way in the four guide sliding grooves (112); the bottom end surface of the guide sliding plate (113) is fixedly connected with a supporting spring (114) in the middle; the tail end of the supporting spring (114) is fixedly connected with the bottom end surface of the fixed rotating shaft (111); an auxiliary rotating shaft (115) is fixedly connected to the top end surface of the guide sliding plate (113); the front part of the top end face of the connecting arm (110) is provided with a group of fixed slots (116) in an annular array shape; the upper part of the auxiliary rotating shaft (115) is fixedly connected with a connecting plate (117); two fixed inserted bars (118) are symmetrically arranged on the bottom end surface of the connecting plate (117); the two fixed inserting rods (118) are inserted into the fixed inserting grooves (116).

5. A retractor according to claim 1, wherein: a group of limiting latches (122) are fixedly connected to the top end surfaces of the two sliding seats (121); both groups of limiting latches (122) are of wedge-shaped tooth structures; two limiting clamping plates (123) are connected in the top end surface of the mounting frame (120) in a sliding manner; the two limiting clamping plates (123) are rectangular block structures with wedge-shaped bottoms; the two limiting clamping plates (123) are respectively inserted into the two groups of limiting clamping teeth (122); the top end surfaces of the two limiting clamping plates (123) are fixedly connected with an auxiliary plate (124); a group of connecting springs (125) are symmetrically and fixedly connected to the bottom end surfaces of the two auxiliary plates (124); the tail ends of the two groups of connecting springs (125) are fixedly connected to the top end surface of the mounting frame (120).

6. A retractor according to claim 1, wherein: a group of swinging plates (127) are rotatably connected in an annular array in the two auxiliary frames (126); a group of fixed inserting blocks (128) are fixedly connected to the outer sides of the two groups of swinging plates (127); a group of fixed clamping grooves (132) are formed in the upper parts of the two mounting plates (131) in an annular array shape; the two groups of fixed inserting blocks (128) are respectively inserted into the two groups of fixed clamping grooves (132); the outer sides of the front parts of the two groups of swing plates (127) are fixedly connected with a group of return springs (133); the tail ends of the two groups of reset springs (133) are respectively and fixedly connected in the two auxiliary frames (126); a control shifting ring (129) is connected in the two auxiliary frames (126) in a sliding way; the inner sides of the two control shifting rings (129) are provided with a conical groove; the conical grooves on the inner sides of the two control shifting rings (129) are respectively contacted with the outer parts of the two groups of swinging plates (127); the outer sides of the two control shifting rings (129) are fixedly connected with a group of auxiliary springs (130); the tail ends of the two groups of auxiliary springs (130) are respectively and fixedly connected in the two auxiliary frames (126).