Angle adjustable retractor holder

Abstract

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to an angle-adjustable retractor support. The present application aims at the problem that the retractor support is a fixed structure after being assembled and installed on a hospital bed, and cannot be further adjusted, thus being not applicable to patients with different fatness levels and having poor universality. The present application provides an angle-adjustable retractor support, which comprises a mounting rod and a support. The mounting rod is fixedly connected to a fastener. The support encloses a surgical area. A plurality of retractor ends are connected to the support, and the other ends extend to the surgical area. The support is rotatably connected to the mounting rod through a rotation control assembly. One end of the rotation control assembly is connected to the mounting rod, and the other end is connected to the support. The present application realizes the rotatable connection between the mounting rod and the support through the rotation control assembly. After the retractor support is installed on a hospital bed as a whole, the support can still rotate, thereby meeting the needs of patients with different fatness levels and expanding the applicable scenarios.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to an angle-adjustable retractor support. BACKGROUND

[0002] The surgical retractor is used for multi-directional traction of lesions and surrounding tissues to form a space convenient for surgery. The surgical retractor is fixed and supported by a retractor support. However, the retractor support in the prior art is a fixed structure after assembly and installation on a hospital bed, and cannot be further adjusted, which cannot be applied to patients with different degrees of fatness and has poor universality.

[0003] For example, a surgical retractor structure for hepatobiliary surgery is disclosed in a Chinese patent application for invention [application number: 202210402005.1]. The invention patent application comprises two arc-shaped supports, the end portions of the supports are welded with connecting plates, the inside of the connecting plates is welded and fixed with sleeve rods, the inside of the sleeve rods between the two supports is provided with a spacing adjustment rod; the end portion of the sleeve rod is further connected with a foot rod through a rotating shaft, the outside of the foot rod is fixed with a foot support, and the foot support is connected with a fixing clamp through a foot support rotating shaft; the outside of the support is fixedly installed with a plurality of support plates, the support plates are connected with support rods through support plate rotating shafts, the end portion outside of the support rods is installed with telescopic rods, and the telescopic rods are fixed with retractor hooks through telescopic rod bolts.

[0004] The invention patent application has the advantages of quick assembly and fixation of the retractor, good stability, multi-directional traction operation without affecting the operation of medical workers, but the above problems are still not solved. SUMMARY

[0005] The purpose of the present application is to provide an angle-adjustable retractor support applicable to patients with different degrees of fatness.

[0006] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0007] An angle-adjustable retractor support comprises a mounting rod and a support, the mounting rod is fixedly connected to a fastener, the support encloses a surgical area, a plurality of retractor hooks are connected to the support at one end and extend to the surgical area at the other end, the support is rotatably connected to the mounting rod through a rotating control assembly, one end of the rotating control assembly is connected to the mounting rod, and the other end is connected to the support.

[0008] In the above angle-adjustable retractor support, the rotating control assembly comprises a plurality of rotating connection assemblies, the rotating connection assembly comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is fixedly connected to the support, the other end is fixedly connected with a rotating disc, one end of the second connecting piece is fixedly connected to the second connecting piece, and the other end is rotatably connected to the rotating disc.

[0009] In the angle-adjustable drag hook support, a gear control assembly is further arranged on the rotating connecting assembly, the gear control assembly comprises a gear slot arranged on the side of the rotating disc and extending towards the center of the rotating disc and a gear block movable along the axial line of the mounting rod, and the gear block is embedded into the gear slot or separated from the gear slot by moving the gear block.

[0010] In the angle-adjustable drag hook support, the gear control assembly further comprises a driving block in contact with the gear block, a driving rod fixedly connected to the side of the driving block, one end of the driving rod extending to the outside of the second connecting piece through a driving groove arranged on the side of the second connecting piece, and a gear spring connected to the end of the driving block away from the gear block, the other end of the gear spring being fixedly connected to the second connecting piece or the mounting rod.

[0011] In the angle-adjustable drag hook support, a pressing assembly is further arranged on the rotating connecting assembly, the pressing assembly comprises a handle and a pressing rod fixedly connected, a threaded rod fixedly connected to the end of the pressing rod away from the handle, the threaded rod penetrating through the rotating disc through the center of the rotating disc and being threadedly connected to the second connecting piece at the end, and the pressing rod being moved along the axial line of the threaded rod and being arranged on the side of the rotating disc by rotating the handle.

[0012] In the angle-adjustable drag hook support, the support comprises a left support and a right support arranged oppositely, the left support comprises a plurality of tube sleeves, one end of the drag hook being connected to the tube sleeves, and the tube sleeves being connected through a connecting structure.

[0013] In the angle-adjustable drag hook support, the left support comprises a first tube sleeve and a second tube sleeve, the first tube sleeve and the second tube sleeve being connected through a connecting structure, one end of the first tube sleeve away from the second tube sleeve being connected to the rotating control assembly through the connecting structure, and one end of the second tube sleeve away from the first tube sleeve being connected to the rotating control assembly through the connecting structure.

[0014] In the angle-adjustable drag hook support, the connecting structure comprises a first limiting base and a first connecting column fixedly connected, a second connecting column fixedly connected to one end of the first connecting column away from the first limiting base, the outer diameter of the second connecting column being smaller than the outer diameter of the first connecting column, the connecting structure further comprising a left joint fixedly connected to the first tube sleeve and a right joint fixedly connected to the second tube sleeve, a first connecting part fixedly connected to the left joint, a second connecting part fixedly connected to the right joint, the first connecting part and the second connecting part being located in opposite positions, and the first connecting part and the second connecting part being locked to each other through the first connecting column.

[0015] In the angle-adjustable drag hook support, the second connecting part is provided with a connecting groove, and both sides of the connecting groove are provided with through holes penetrating through the second connecting part, the through holes are communicated with the connecting groove, one end of the first connecting part extends into the connecting groove, and the first connecting part is provided with a through slot penetrating through the first connecting part, one end of the through slot is communicated with an opening, the connecting column is embedded in the through hole or the through slot, and the minimum width of the opening is greater than the outer diameter of the second connecting column and smaller than the outer diameter of the first connecting column.

[0016] In the angle-adjustable drag hook support, the second connecting column is fixedly or detachably connected with a second limiting base at the end away from the first connecting column, a return spring is sleeved on the second connecting column, one end of the return spring is pressed on the second limiting base, and the other end is pressed on the outer side of the second connecting part.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. The present application realizes the rotary connection between the mounting rod and the support by rotating the control assembly, and after the drag hook support is mounted on the operating bed as a whole, the support can still rotate, thereby meeting the needs of patients with different degrees of fatness and expanding the applicable scenarios.

[0019] 2. The present application is provided with a gear control assembly on at least one rotary connecting assembly, and the angle through which the support rotates relative to the mounting rod can be controlled more accurately by selecting the gear through the gear control assembly.

[0020] 3. The present application is provided with a gear slot, a gear block and a driving rod and the like structure on only one side of the rotary connecting assembly, so that when the angle needs to be adjusted, only the driving rod on one side needs to be pressed, which is more convenient to adjust than the two sides being provided at the same time, and the operator can realize the relevant operation with one hand.

[0021] 4. The present application provides a novel structure, and the first connecting column and the second connecting column with different outer diameters are provided, and the sliding connection structure is used to realize locking when cooperating with the first connecting column and to realize detachability when cooperating with the second connecting column, thereby greatly simplifying the original installation process.

[0022] 5. The first connecting column of the present application has a circular cross section, so that when the first connecting column is embedded in the through slot to realize the mutual connection of the first connecting part and the second connecting part, the first connecting part and the second connecting part can still relatively rotate, that is, the first pipe sleeve and the second pipe sleeve can also be adjusted in opening size through rotation, so that the drag hook support can be adapted to operating beds with different widths, thereby expanding the applicable scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the present application;

[0024] Figure 2 This is a structural schematic diagram of a portion of the present invention;

[0025] Figure 3 This is an exploded view of the rotation control component with a gear control component.

[0026] Figure 4 This is a cross-sectional view of the rotation control assembly without the gear control assembly;

[0027] Figure 5 This is a structural diagram of a portion of the connecting structure;

[0028] Figure 6 This is an exploded view of a portion of the connecting structure;

[0029] Figure 7 This is an exploded view of the connection structure;

[0030] In the diagram: 1. Mounting rod; 2. Bracket; 3. Fastener; 4. Surgical area; 5. Retractor; 21. Left bracket; 22. Right bracket; 23. First sleeve; 24. Second sleeve; 100. Connecting structure; 101. First limiting base; 102. First connecting post; 103. Second connecting post; 104. Second limiting base; 105. Return spring; 106. Connecting platform; 107. Left connector; 108. Right connector; 109. First connecting part; 110. Second connecting part; 110. Connecting recess. Groove 111, through hole 112, through slot 113, opening 114, rotation control assembly 200, rotation connection assembly 201, gear control assembly 202, first connector 203, second connector 204, rotating disk 205, gear slot 206, gear block 207, drive block 208, drive rod 209, drive groove 210, gear spring 211, clamping assembly 212, handle 213, clamping rod 214, threaded rod 215. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown, an angle-adjustable hook bracket includes a mounting rod 1 and a bracket 2. The mounting rod 1 is fixedly connected to a fastener 3. The bracket 2 encloses a surgical area 4. Several hooks 5 are connected at one end to the bracket 2 and at the other end to the surgical area 4. The bracket 2 is rotatably connected to the mounting rod 1 through a rotation control component 200. One end of the rotation control component 200 is connected to the mounting rod 1, and the other end is connected to the bracket 2.

[0033] The present application, when in use, fixes the mounting rod 1 to the side of the operating bed through the fastener 3, and the bracket 2 is across from the top of the operating bed. After the installation is completed, the bracket 2 can be rotated relative to the mounting rod 1 through the rotation control assembly 200. Therefore, the present application realizes the rotation connection between the mounting rod 1 and the bracket 2 through the rotation control assembly 200, and after the whole retractor bracket is installed on the operating bed, the bracket can still be rotated, so as to adapt to the needs of patients with different fatness and expand the applicable scenarios.

[0034] As shown in Figure 2 , the rotation control assembly 200 includes a plurality of rotation connection assemblies 201, which are located between the mounting rod 1 and the bracket 2, and the mounting rod 1 is rotationally connected with the bracket 2 through the rotation connection assembly 201. At least one rotation connection assembly 201 is provided with a gear control assembly 202.

[0035] In use, the angle corresponding to each rotation of a gear is set through the gear control assembly 202, so as to more accurately determine the angle of rotation of the bracket 2 relative to the mounting rod 1. Therefore, the present application is provided with the gear control assembly 202 on at least one rotation connection assembly 201, and the angle of rotation of the bracket 2 relative to the mounting rod 1 can be more accurately controlled through the gear selection of the gear control assembly 202. Preferably, each gear in the present application corresponds to a rotation of 20 degrees of the bracket 2.

[0036] As shown in Figure 2 and Figure 3 , the rotation connection assembly 201 includes a first connecting piece 203 and a second connecting piece 204, one end of the first connecting piece 203 is fixedly connected with the bracket 2, and the other end is fixedly connected with a rotating disc 205, one end of the second connecting piece 204 is fixedly connected with the second connecting piece 204, and the other end is rotationally connected with the rotating disc 205, one end of the gear control assembly 202 is located in the mounting rod 1 or the second connecting piece 204, and the other end extends to the side of the rotating disc 205.

[0037] Specifically, the gear control assembly 202 includes a gear slot 206 arranged on the side of the rotating disc 205 and extending towards the center of the rotating disc 205, and a gear block 207 which can move along the axial line of the mounting rod 1. Moving the gear block 207 can make the gear block 207 fit into the gear slot 206 or come out of the gear slot 206.

[0038] In use, external force is applied to the bracket 2 to make the bracket 2 rotate, and the first connecting piece 203 and the rotating disc 205 are driven to rotate by the bracket 2. When it is rotated to the corresponding gear, the gear block 207 is fitted in the gear slot 206, and the rotating disc 205 is locked, so that the bracket 2 maintains the angle of rotation.

[0039] Preferably, the gear slot 206 and the gear block 207 are both triangular in cross section. The triangular shape makes the cooperation between the gear slot 206 and the gear block 207 more stable, preventing the bracket 2 from deviating after being rotated to the corresponding angle.

[0040] As shown in the figure, the gear slot 206 is provided with two groups, each group having a plurality of gear slots 206, and the gear slots 206 of each group are arranged in sequence along the edge of the rotating disc 205 and the distance between adjacent two gear slots 206 is equal. This facilitates setting the angle of the bracket 2 rotated corresponding to each gear slot 206. Figure 3

[0041] Preferably, the two groups of gear slots 206 are symmetrically arranged along the center line of the rotating disc 205. This avoids the need to distinguish the front and back of the rotating disc 205 during installation, facilitating installation and avoiding the possibility of installation errors.

[0042] As shown in the figure, the gear control assembly 202 further comprises a driving block 208 fitted with the gear block 207, the driving block 208 is fixedly connected with a driving rod 209 on the side surface, one end of the driving rod 209 extends to the outside of the second connecting piece 204 through a driving groove 210 provided on the side surface of the second connecting piece 204. The end of the driving block 208 away from the gear block 207 is connected with a gear spring 211, the other end of the gear spring 211 is fixedly connected on the second connecting piece 204 or the mounting rod 1. Figure 3 In use, when rotated to the corresponding gear, the gear block 207 is fitted into the gear slot 206 under the pushing of the gear spring 211. When it is needed to rotate again, the driving rod 209 is pressed so that the gear spring 211 is compressed, and at this time the gear block 207 is out of the gear slot 206. Moreover, in the present application, the rotating connection assembly 201 on one side is provided with the gear control assembly 202, and the rotating connection assembly 201 on the other side is not provided with the gear control assembly 202. In this way, the gear slot 206, the gear block 207 and the driving rod 209 and other structures are only arranged on the rotating connection assembly 201 on one side, so that when the angle needs to be adjusted, only the driving rod 209 on one side needs to be pressed, which is more convenient for adjustment compared with the simultaneous arrangement on both sides, and the operator can realize the related operation with one hand.

[0043] As shown in the figure, the rotating connection assembly 201 is further provided with a pressing assembly 212, and the rotating pressing assembly 212 can make the pressing assembly 212 press to the side surface of the rotating disc 205. The pressing assembly 212 can press the rotating disc 205, and together with the gear control assembly 202 to ensure that the bracket 2 does not deviate after being rotated to the corresponding gear.

[0044] Figure 4

[0045] ​​​Specifically, the pressing assembly 212 comprises a fixedly connected handle 213 and a pressing rod 214, one end of the pressing rod 214 away from the handle 213 is fixedly connected with a threaded rod 215, the threaded rod 215 penetrates through the rotating disc 205 through the center of the rotating disc 205 and is threadedly connected with the second connecting piece 204 at the end, rotating the handle 213 makes the pressing rod 214 move along the axial direction of the threaded rod 215 and press against the side of the rotating disc 205. Figure 3 As shown, the pressing rod 214 directly presses against the side of the rotating disc 205, which is more stable and reliable than the pressing mode that the pressing rod 214 indirectly presses against the rotating disc 205 by being arranged on the side of the second connecting piece 204.

[0046] As shown in the drawings, Figure 1 As shown, the support 2 comprises oppositely arranged left and right supports 21 and 22, the left support 21 comprises a plurality of tube sleeves, one end of the draw hook 5 is connected to the tube sleeve, and the tube sleeves are connected through the connecting structure 100. The left support 21 is composed of a first tube sleeve 23 and a second tube sleeve 24, the first tube sleeve 23 and the second tube sleeve 24 are connected through the connecting structure 100, one end of the first tube sleeve 23 away from the second tube sleeve 24 is connected with the rotating control assembly 200 through the connecting structure 100, and one end of the second tube sleeve 24 away from the first tube sleeve 23 is connected with the rotating control assembly 200 through the connecting structure 100.

[0047] The overall structure of the present application adopts a multi-section assembly mode, so that the sleeve and the sleeve, and the sleeve and the mounting rod 1 can be quickly disassembled, facilitating transportation and storage.

[0048] As shown in the drawings, Figure 5 And Figure 6 As shown, the connecting structure 100 comprises a fixedly connected first limiting base 101 and a first connecting column 102, further comprises a second connecting column 103 fixedly connected at one end of the first connecting column 102 away from the first limiting base 101, and the outer diameter of the second connecting column 103 is smaller than that of the first connecting column 102.

[0049] In use, the first connecting column 102 is used to connect the parts, and when switched to the second connecting column 103, the parts can be separated from each other. Therefore, the present application provides a novel structure, the first connecting column 102 and the second connecting column 103 with different outer diameters are provided, and the sliding connecting structure is used, when matched with the first connecting column 102, locking is realized, and when matched with the second connecting column 103, detachability is realized, so that the original installation process is greatly simplified.

[0050] Preferably, the second connecting column 103 is fixedly or detachably connected with a second limiting base 104 at one end away from the first connecting column 102. The second limiting base 104 realizes limiting from the other side, preventing the connecting structure from being pulled out from the other direction.

[0051] As Figure 5 shown, further comprising a reset spring 105 sleeved on the second connecting column 103, one end of the reset spring 105 is pressed on the second limiting base 104. The reset spring 105 can play an automatic reset role, and in the normal state, it is connected in the locking state through the first connecting column 102, when disassembling is needed, the reset spring 105 is contracted by pressing the second limiting base 104, so that the connection is switched to the second connecting column 103, thereby realizing disassembly.

[0052] Preferably, the axis of the reset spring 105 and the axis of the second connecting column 103 coincide with each other. In this way, the compression direction of the reset spring 105 and the moving direction of the connecting structure are in the same direction.

[0053] As Figure 5 shown, the first connecting column 102 and the second connecting column 103 are connected through the connecting table 106, the outer diameter of the connecting table 106 gradually decreases from the end close to the first connecting column 102 to the end close to the second connecting column 103, and the outer surface of the connecting table 106 is arc-shaped.

[0054] As Figure 3 shown, further comprising a left joint 107 and a right joint 108 respectively located on both sides of the connecting columns 102 and 103, the left joint 107 is fixedly connected to the first pipe sleeve 23, the right joint 108 is fixedly connected to the second pipe sleeve 24, the left joint 107 is fixedly connected with a first connecting part 109, the right joint 108 is fixedly connected with a second connecting part 110, the first connecting part 109 and the second connecting part 110 are located in opposite positions, and the first connecting part 109 and the second connecting part 110 are locked with each other through the first connecting column 102.

[0055] Specifically, the second connecting part 110 is provided with a connecting groove 111, and through holes 112 penetrating through the second connecting part 110 are arranged on both sides of the connecting groove 111, the through holes 112 are communicated with the connecting groove 111, one end of the first connecting part 109 extends into the connecting groove 111, and a through slot 113 penetrating through the first connecting part 109 is arranged on the first connecting part 109, one end of the through slot 113 is communicated with an opening 114, and the connecting columns 102 and 103 are embedded in the through holes 112 or the through slot 113.

[0056] In use, one end of the reset spring 105 abuts against the second limiting base 104, and the other end abuts against the bottom surface of the second connecting portion 110. At this time, the first connecting portion 109 and the second connecting portion 110 are connected by the first connecting column 102, and are in a locked state. When disassembly is needed, the second limiting base 104 is pressed so that the reset spring 105 is compressed. At this time, the first connecting portion 109 and the second connecting portion 110 are connected by the second connecting column 103, and are in a detachable state.

[0057] Preferably, the first connecting column 102 and the second connecting column 103 are both circular in cross section. The first connecting column 102 is circular in cross section, so that when the first connecting column 102 is embedded in the through slot 113 to connect the first connecting portion 109 and the second connecting portion 110, i.e. in the locked state, the first connecting portion 109 and the second connecting portion 110 can still rotate relative to each other, i.e. the first pipe sleeve 23 and the second pipe sleeve 24 can still be adjusted in size by rotation, so that the drag hook support can be adapted to surgical beds of different widths, expanding the applicable scenarios.

[0058] As shown in Figure 7 the axis of the through slot 113 is on the same straight line as the axis of the through hole 112.

[0059] As shown in Figure 7 the minimum width of the opening 114 is greater than the outer diameter of the second connecting column 103 and less than the outer diameter of the first connecting column 102. Such a hole size can simply and conveniently achieve the locked state of the first connecting portion 109 and the second connecting portion 110 when connected by the first connecting column 102, and the first connecting portion 109 can be pulled out through the opening 114 when connected by the second connecting column 103.

[0060] The working principle of the present application is as follows: Figure 7As shown, the connecting columns 102, 103 are pre-inserted into the through holes 112, one end of the reset spring 105 abuts against the second limiting base 104, and the other end abuts against the bottom surface of the second connecting part 110, the first connecting part 109 is inserted into the connecting groove 111, at this time, the first connecting part 109 and the second connecting part 110 are connected through the first connecting column 102, so that they are in the locked state, according to the width of the operating bed, the first sleeve 23 and the second sleeve 24 are rotated and adjusted to the appropriate opening, and then the mounting rod 1 is fixed to the side surface of the operating bed through the fastener 3. During the operation, according to the fatness of the patient, the bracket 2 is rotated to the appropriate angle. When disassembling after the operation is completed, the mounting rod 1 is separated from the fastener 3, the whole retractor bracket is disassembled, and then the second limiting base 104 is pressed so that the reset spring 105 is compressed, at this time, the first connecting part 109 and the second connecting part 110 are connected through the second connecting column 103, and the first connecting part 109 is slid along the lateral direction, at this time, the first connecting part 109 is slid out of the connecting groove 111 through the opening 114, and the disassembly is realized. Therefore, the mounting rod 1 and the bracket 2 are rotatably connected through the rotation control assembly 200, after the whole retractor bracket is installed on the operating bed, the bracket can still be rotated, so as to adapt to the needs of patients with different fatness and expand the applicable scenarios.

[0061] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

[0062] Although the terms mounting rod 1, bracket 2, fastener 3, operating area 4, retractor 5, left bracket 21, right bracket 22, first sleeve 23, second sleeve 24, connecting structure 100, first limiting base 101, first connecting column 102, second connecting column 103, second limiting base 104, reset spring 105, connecting table 106, left joint 107, right joint 108, first connecting part 109, second connecting part 110, connecting groove 111, through hole 112, through slot 113, opening 114, rotation control assembly 200, rotation connecting assembly 201, gear control assembly 202, first connecting piece 203, second connecting piece 204, rotating disc 205, gear slot 206, gear block 207, driving block 208, driving rod 209, driving groove 210, gear spring 211, pressing assembly 212, handle 213, pressing rod 214, threaded rod 215 are used more frequently in the text, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. An angle-adjustable retractor support, comprising a mounting rod (1) and a support (2), the mounting rod (1) being fixedly connected to a fastener (3), the support (2) enclosing a surgical area (4), a plurality of retractors (5) being connected at one end to the support (2) and extending toward the surgical area (4) at the other end, characterized in that: The support (2) is rotatably connected with the mounting rod (1) through a rotation control assembly (200), one end of the rotation control assembly (200) is connected with the mounting rod (1), and the other end is connected on the support (2); ​ The support (2) comprises oppositely arranged left and right supports (21) and (22), the left support (21) comprises a plurality of tube sleeves, one end of the draw hook (5) is connected on the tube sleeve, and the tube sleeves are connected through a connecting structure (100); The connecting structure (100) comprises a first limiting base (101) and a first connecting column (102) fixedly connected, one end of the first connecting column (102) away from the first limiting base (101) is fixedly connected with a second connecting column (103), the outer diameter of the second connecting column (103) is smaller than that of the first connecting column (102), the connecting structure (100) further comprises a left joint (107) fixedly connected on the first tube sleeve (23) and a right joint (108) fixedly connected on the second tube sleeve (24), the left joint (107) is fixedly connected with a first connecting part (109), the right joint (108) is fixedly connected with a second connecting part (110), the first connecting part (109) and the second connecting part (110) are located at opposite positions, and the first connecting part (109) and the second connecting part (110) are locked with each other through the first connecting column (102); One end of the second connecting column (103) away from the first connecting column (102) is fixedly or detachably connected with a second limiting base (104), a reset spring (105) is sleeved on the second connecting column (103), one end of the reset spring (105) is pressed on the second limiting base (104), and the other end is pressed on the outer side of the second connecting part (110); The second connecting part (110) is provided with a connecting groove (111) therein, penetrating holes (112) are formed in the two sides of the connecting groove (111), the penetrating holes (112) are communicated with the connecting groove (111), one end of the first connecting part (109) extends into the connecting groove (111), a through groove (113) penetrating the first connecting part (109) is formed in the first connecting part (109), one end of the through groove (113) is communicated with an opening (114), the connecting columns (102) and (103) are embedded in the penetrating holes (112) or the through groove (113), and the minimum width of the opening (114) is greater than the outer diameter of the second connecting column (103) and smaller than the outer diameter of the first connecting column (102).

2. The angle adjustable drag hook support of claim 1, wherein: The rotation control assembly (200) comprises a plurality of rotation connecting assemblies (201), the rotation connecting assembly (201) comprises a first connecting piece (203) and a second connecting piece (204), one end of the first connecting piece (203) is fixedly connected with the support (2), the other end is fixedly connected with a rotating disc (205), one end of the second connecting piece (204) is fixedly connected with the second connecting piece (204), and the other end is rotatably connected with the rotating disc (205).

3. The angle adjustable drag hook support of claim 2, wherein: The rotating connecting assembly (201) is further provided with a gear control assembly (202), the gear control assembly (202) comprises a gear slot (206) arranged on the side of the rotating disc (205) and extending to the center direction of the rotating disc (205), and a gear block (207) movable along the axial direction of the mounting rod (1), and the gear block (207) can be embedded into the gear slot (206) or separated from the gear slot (206).

4. The angle adjustable drag hook support of claim 3, wherein: The gear control assembly (202) further comprises a driving block (208) abutting the gear block (207), the side of the driving block (208) is fixedly connected with a driving rod (209), one end of the driving rod (209) extends to the outside of the second connecting piece (204) through a driving groove (210) arranged on the side of the second connecting piece (204), and the end of the driving block (208) away from the gear block (207) is connected with a gear spring (211), and the other end of the gear spring (211) is fixedly connected on the second connecting piece (204) or the mounting rod (1).

5. The angle adjustable drag hook support of claim 3, wherein: The rotating connecting assembly (201) is further provided with a pressing assembly (212), the pressing assembly (212) comprises a handle (213) and a pressing rod (214) fixedly connected, one end of the pressing rod (214) away from the handle (213) is fixedly connected with a threaded rod (215), the threaded rod (215) penetrates through the rotating disc (205) through the center of the rotating disc (205) and is threadedly connected with the second connecting piece (204) at the end, and rotating the handle (213) makes the pressing rod (214) move along the axial direction of the threaded rod (215) and press against the side of the rotating disc (205).

6. The angle adjustable drag hook support of claim 1, wherein: The left support (21) is composed of a first pipe sleeve (23) and a second pipe sleeve (24), the first pipe sleeve (23) and the second pipe sleeve (24) are connected through a connecting structure (100), one end of the first pipe sleeve (23) away from the second pipe sleeve (24) is connected with the rotating control assembly (200) through the connecting structure (100), and one end of the second pipe sleeve (24) away from the first pipe sleeve (23) is connected with the rotating control assembly (200) through the connecting structure (100).

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