CN219558292U

CN219558292U - Medical infusion support

Info

Publication number: CN219558292U
Application number: CN202320293659.5U
Authority: CN
Inventors: 李楠; 鲁静; 毛爱军; 范博士; 杨玉晶; 陈璐; 刘娜; 徐磊; 周少华; 东海
Original assignee: 6th Medical Center of PLA General Hospital
Current assignee: 6th Medical Center of PLA General Hospital
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-08-22
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to the technical field of medical appliances, in particular to a medical infusion support, which comprises a base, wherein a telescopic rod is arranged on the base, and the top of the telescopic rod is provided with a mounting disc; the mounting plate is fixedly provided with a first supporting rod, the first supporting rod is horizontally arranged, and the mounting plate is positioned in the middle of the first supporting rod; first hooks are respectively hung on the first support rod and positioned on two sides of the mounting plate at intervals; the mounting plate is provided with second support rods in a rotating mode and positioned on two sides of the first support rods respectively, and a first elastic clamping assembly is arranged between the second support rods and the mounting plate; the first elastic clamping assembly controls the second supporting rod to rotate to a set angle, and a plurality of second hooks are hung on the lower side of the second supporting rod at intervals. When the infusion is performed, the angle of the second supporting rod can be adjusted, so that the medical staff and patients can conveniently move, and the infusion requirements of more patients can be met.

Description

Medical infusion support

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a medical infusion support.

Background

In a transfusion room of a hospital, a transfusion stand is generally arranged, a patient infuses in the transfusion room, and a transfusion bottle or a transfusion bag used in the transfusion process is hung on the transfusion stand.

The existing infusion support comprises a base, a support rod on the upper side of the base, and an infusion bag or an infusion bottle hung on the top of the support rod. The existing infusion support is generally that one infusion support corresponds to one patient serving as or adjacent to two seats. Therefore, in order to reduce the quantity of infusion support, there is the support frame that the top is the cross among the prior art, and hoist and mount a plurality of couples under the cross support frame, and then can satisfy many patients and use.

However, in the conventional cross-shaped infusion support, the cross-shaped support frame at the top is fixed in the using or moving process, so that when the number of patients in infusion is small, the infusion support occupies a large space, and inconvenience is brought to the patients and doctors to a certain extent. Meanwhile, when the number of the transfusion persons is large, the cross-shaped supporting frames cannot adjust the positions of the transfusion bottles, so that mutual influence can occur during transfusion.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the medical infusion support, when in infusion, the angle of the second support rod can be adjusted, thereby being convenient for medical staff and patients to move and meeting the infusion demands of more patients.

(II) technical scheme

In order to achieve the above purpose, the embodiment of the utility model provides a medical infusion support, which comprises a base, wherein a telescopic rod is arranged on the base, and the top of the telescopic rod is provided with a mounting plate; the mounting plate is fixedly provided with a first supporting rod, the first supporting rod is horizontally arranged, and the mounting plate is positioned in the middle of the first supporting rod; first hooks are respectively hung on the first support rod and positioned on two sides of the mounting plate at intervals; the mounting plate is provided with second support rods in a rotating mode and positioned on two sides of the first support rods respectively, and a first elastic clamping assembly is arranged between the second support rods and the mounting plate; the first elastic clamping assembly controls the second supporting rod to rotate to a set angle, and a plurality of second hooks are hung on the lower side of the second supporting rod at intervals.

Preferably, a connecting shaft is arranged between the second supporting rod and the mounting plate; a plurality of first limiting holes are formed in the upper side of the mounting plate at equal-angle intervals by taking the connecting shaft as a circle center; a first mounting hole is formed in one side, close to the mounting disc, of the second support rod; the distance between the first mounting hole and the connecting shaft is equal to the distance between the first limiting hole and the connecting shaft; the diameter of the first mounting hole is larger than that of the first limiting hole; the first elastic clamping assembly comprises a sliding block which is connected in the first mounting hole in a sliding way, a first compression spring is arranged in the first mounting hole, one end of the first compression spring is abutted to the bottom of the first mounting hole, and the other end of the first compression spring is abutted to the sliding block; one end of the sliding block, which is far away from the first compression spring, is fixed with a first spherical surface, the area of the sliding block is larger than that of the first limiting hole, and the maximum diameter of the first spherical surface is smaller than or equal to that of the first limiting hole.

Preferably, the end part of the first support rod and/or the second support rod far away from the mounting disc is slidably provided with a third support rod, the lower side of the third support rod is provided with a mounting bin, the mounting bin is provided with a plurality of third hooks along the length direction of the third support rod at intervals, the third hooks are rotatably arranged in the mounting bin, and the third hooks can rotate in or out of the mounting bin.

Preferably, a sliding hole is formed in one end, far away from the mounting disc, of the first support rod and/or the second support rod, and the third support rod is slidably connected in the sliding hole; the third support rod is provided with a plurality of second elastic clamping assemblies at intervals, and the second elastic clamping assemblies can elastically limit the sliding of the third support rod.

Preferably, a second mounting hole is formed in the third supporting rod, the second mounting hole is located at one side of the mounting bin, the second elastic clamping assembly comprises a limiting ring which is connected to the outer end of the second mounting hole in a threaded mode, a limiting column is arranged in the second mounting hole in a sliding mode, one end of the limiting column penetrates out of the limiting ring, a second spherical surface is arranged at one end of the limiting column, and the other end of the limiting column is located in the second mounting hole; a sliding ring is fixed in the middle of the limiting column, is positioned in the second mounting hole and can slide in the second mounting hole; the limiting post is sleeved with a second compression spring, and the second compression spring is positioned at one side of the sliding ring far away from the limiting ring; the second compression spring is in a compression state, one end of the second compression spring is abutted against the bottom of the second mounting hole, and the other end of the second compression spring is abutted against the sliding ring; when the sliding ring is abutted with the limiting ring, all or part of the second spherical surface protrudes out of the limiting ring; the inner wall of the sliding connection hole is provided with a second limiting hole, and when the third support rod slides in the sliding connection hole, the second spherical surface can enter or slide out of the second limiting hole.

Preferably, a third clamping assembly is arranged in the installation bin, and when the third hook rotates to enter the installation bin, the third clamping assembly elastically clamps the third hook.

Preferably, the third clamping assembly comprises a first supporting block and a second supporting block which are arranged at intervals, and the first supporting block and the second supporting block are positioned in the installation bin and at one side of the installation bin, which is close to the installation disc; one end of the third hook is rotationally connected between the first supporting block and the second supporting block, the other end of the third hook is in a circular hook shape, and friction force exists between the first supporting block, the second supporting block and the third hook; when the third hook is buckled in the installation bin, one side of the circular hook-shaped opening faces to the bottom of the installation bin.

Preferably, the telescopic rod comprises a sleeve fixedly connected with the base, a sleeve rod is slidably connected with the sleeve, and one end, far away from the base, of the sleeve is connected with the mounting plate; the sleeve is rotationally connected with a locking knob, and the sleeve rod can be abutted against the locking knob when the locking knob is screwed.

Preferably, a storage box is arranged on one side of the sleeve away from the locking knob.

(III) beneficial effects

The utility model provides a medical infusion support which comprises a base, a telescopic rod on the upper side of the base, a first supporting rod on the top, a second supporting rod with an adjustable angle and a telescopic third supporting rod. When the infusion is carried out, the angle of the second support rod can be adjusted, the length of the third support rod can be adjusted, the occupied area of the infusion support can be adjusted on the whole, when the number of people for infusion is small, the angle of the second support rod and the angle of the first support rod can be adjusted to be small, the occupied area of the second support rod can be reduced, and medical staff and patients can move conveniently. When the number of infusion people increases, the angles of the first support rod and the second support rod can be increased, and meanwhile, the length of the third support rod is prolonged, so that the infusion requirements of more patients are met.

Drawings

FIG. 1 is a schematic view of a medical infusion support according to the present utility model;

FIG. 2 is a top view of a medical infusion support of the utility model;

FIG. 3 is a cross-sectional view of a protruding first resilient clip assembly of a medical infusion support of the utility model;

FIG. 4 is a schematic view showing the connection of the first support rod and the third support rod protruding from the medical infusion support;

FIG. 5 is an enlarged view of the structure A of FIG. 4 in a medical infusion support of the utility model;

FIG. 6 is an end view of a second resilient clip assembly of the present utility model protruding from a medical fluid delivery stand;

fig. 7 is a side view of a medical infusion support of the utility model.

The reference numerals in the drawings:

100. a base; 200. a telescopic rod; 210. a sleeve; 220. a loop bar; 230. a locking knob; 300. a mounting plate; 310. a first limiting hole; 400. a first support bar; 410. a first hook; 420. a slip joint hole; 430. a second limiting hole; 500. a second support bar; 510. a connecting shaft; 520. a first mounting hole; 530. the first elastic clamping assembly; 531. a slide block; 532. a first compression spring; 533. a first spherical surface; 600. a third support bar; 610. a mounting bin; 620. a third hook; 630. a second mounting hole; 640. the second elastic clamping assembly; 641. a limiting ring; 642. a limit column; 643. a second spherical surface; 644. a slip ring; 645. a second compression spring; 650. the third clamping assembly; 651. a first support block; 652. a second support block; 700. and a storage box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The utility model provides a medical infusion support, referring to fig. 1-7, which comprises a base 100, wherein a telescopic rod 200 is arranged on the base 100, and the top of the telescopic rod 200 is provided with a mounting plate 300; the mounting plate 300 is fixedly provided with a first support rod 400, the first support rod 400 is horizontally arranged, and the mounting plate 300 is positioned in the middle of the first support rod 400; first hooks 410 are respectively hung on the first support rod 400 at intervals on two sides of the mounting plate 300. The mounting plate 300 is rotatably provided with a second support rod 500 at two sides of the first support rod 400, and a first elastic clamping assembly 530 is arranged between the second support rod 500 and the mounting plate 300. The first elastic clamping assembly 530 controls the second supporting rod 500 to rotate to a set angle, and a plurality of second hooks are hung at intervals on the lower side of the second supporting rod 500. In use, the infusion bottle may be hung using the first hook 410 hung at the lower side of the first support bar 400, and at the same time, the infusion bottle may be hung using the second hook at the lower side of the second support bar 500. And in the use process, the angle between the second supporting rod 500 and the first supporting rod 400 can be adjusted, so that the transfusion or movement of patients and medical staff is facilitated.

Specifically, a connection shaft 510 is provided between the second support bar 500 and the mounting plate 300; a plurality of first limiting holes 310 are formed on the upper side of the mounting plate 300 at equal angular intervals around the connecting shaft 510. A first mounting hole 520 is formed in one side of the second support bar 500, which is close to the mounting plate 300; the distance between the first mounting hole 520 and the connection shaft 510 is equal to the distance between the first limiting hole 310 and the connection shaft 510; the first mounting hole 520 has a diameter greater than the diameter of the first limiting hole 310.

The first elastic clamping assembly 530 comprises a sliding block 531 which is slidably connected in the first mounting hole 520, a first compression spring 532 is arranged in the first mounting hole 520, one end of the first compression spring 532 is abutted to the bottom of the first mounting hole 520, and the other end of the first compression spring 532 is abutted to the sliding block 531; the end of the slider 531 away from the first compression spring 532 is fixed with a first spherical surface 533, the area of the slider 531 is larger than the area of the first limiting hole 310, and the maximum diameter of the first spherical surface 533 is smaller than or equal to the diameter of the first limiting hole 310. Wherein, the first mounting hole 520 is not separated from the mounting plate 300 when the second supporting bar 500 rotates, so the slider 531 can be held in the first mounting hole 520.

Through the first elastic clamping assembly 530 that sets up, when rotating second bracing piece 500, first elastic clamping assembly 530 moves together, and when the position reached certain first spacing hole 310, slider 531 in the first mounting hole 520 outwards removes under the effect of first compression spring 532 for in the first spherical face 533 enters into first mounting hole 520. At this time, the slider 531 is not separated from the first mounting hole 520. At this time, the position of the second supporting bar 500 is relatively stable when no external force is applied. When the position of the second supporting bar 500 is continuously adjusted, the first spherical surface 533 may be re-inserted into the first mounting hole 520 by the external force when the external force is applied.

The end part of the first support bar 400 and/or the second support bar 500, which is far away from the mounting plate 300, is slidably provided with a third support bar 600, the lower side of the third support bar 600 is provided with a mounting bin 610, the mounting bin 610 is provided with a plurality of third hooks 620 at intervals along the length direction of the third support bar 600, the third hooks 620 are rotatably arranged in the mounting bin 610, and the third hooks 620 can rotate into or out of the mounting bin 610. Through the third support bar 600 that sets up, when the infusion number is less, can be with in the first support bar 400 or the second support bar 500 of third support bar 600 withdrawal, when the infusion number is more, can pull out third support bar 600, use the third couple 620 in the installation storehouse 610 to hang infusion bottle infusion to satisfy more patient's infusion demand.

The first support rod 400 and/or the second support rod 500 is/are provided with a sliding hole 420 at one end far away from the mounting plate 300, and the third support rod 600 is/are slidably connected in the sliding hole 420; the third support rod 600 is provided with a plurality of second elastic clamping assemblies 640 at intervals, and the second elastic clamping assemblies 640 can elastically limit the sliding of the third support rod 600. Through the second elastic clamping assembly 640, after the third support rod 600 is moved, the third support rod 600 can be elastically limited, so that the third support rod is kept relatively stable.

The third supporting bar 600 is provided with a second mounting hole 630, and the second mounting hole 630 is located at one side of the mounting bin 610. The second elastic clamping assembly 640 comprises a limiting ring 641 which is connected to the outer end of the second mounting hole 630 in a threaded manner, a limiting column 642 is slidably arranged in the second mounting hole 630, one end of the limiting column 642 penetrates out of the limiting ring 641, a second spherical surface 643 is arranged, and the other end of the limiting column 642 is positioned in the second mounting hole 630. A sliding ring 644 is fixed at the middle part of the limiting post 642, and the sliding ring 644 is positioned in the second mounting hole 630 and can slide in the second mounting hole 630. The limiting post 642 is sleeved with a second compression spring 645, and the second compression spring 645 is positioned at one side of the sliding ring 644 away from the limiting ring 641; the second compression spring 645 is in a compressed state, one end of which is abutted against the bottom of the second mounting hole 630, and the other end of which is abutted against the sliding ring 644; when the slide ring 644 abuts against the stopper ring 641, the second spherical surface 643 protrudes wholly or partly from the stopper ring 641.

The inner wall of the sliding hole 420 is provided with a second limiting hole 430, and when the third support rod 600 slides in the sliding hole 420, the second spherical surface 643 can enter or slide out of the second limiting hole 430. When entering the second limiting hole 430, the third supporting bar 600 may have a limiting effect to a certain extent.

The third clamping assembly 650 is disposed in the mounting bin 610, and when the third hook 620 rotates into the mounting bin 610, the third clamping assembly 650 elastically clamps the third hook. By providing a third snap-in assembly 650, the third hook 620 can be retained within the mounting pocket 610 when the third hook 620 is not in use. The third supporting bar 600 is conveniently introduced into or slid out of the sliding contact hole 420.

The third clamping assembly 650 includes a first supporting block 651 and a second supporting block 652 arranged at intervals, wherein the first supporting block 651 and the second supporting block 652 are positioned in the mounting bin 610 and positioned at one side of the mounting bin 610 close to the mounting disc 300; one end of the third hook 620 is rotatably connected between the first supporting block 651 and the second supporting block 652, the other end is in a circular hook shape, and friction exists between the first supporting block 651, the second supporting block 652 and the third hook 620. When the third hook 620 rotates into the installation bin 610, the first supporting block 651 and the second supporting block 652 can support them so as to keep them stable.

When the third hook 620 is fastened in the mounting bin 610, one side of the opening of the circular hook faces the bottom of the mounting bin 610. After use, if the third support rod 600 needs to be slid into the sliding hole 420, since the opening side of the round hook faces the bottom of the installation cabin 610, if the third hook 620 is not retracted during the sliding process, the third hook 620 will not be clamped with the outer end of the sliding hole 420, and will enter the installation cabin 610 under the action of the end face of the sliding hole 420.

The telescopic rod 200 comprises a sleeve 210 fixedly connected with the base 100, a sleeve 220 is slidably connected with the sleeve 210, and one end of the sleeve 210 far away from the base 100 is connected with a mounting plate 300; the sleeve 210 is rotatably connected with a locking knob 230, and the locking knob 230 can abut against the sleeve 220 when screwed. The sleeve 210 is provided with a storage box 700 on a side remote from the locking knob 230.

The utility model provides a medical infusion support, which comprises a base 100, a telescopic rod 200 arranged on the upper side of the base 100, a first support rod 400 arranged on the top, a second support rod 500 with adjustable angle and a telescopic third support rod 600. When the infusion is performed, the angle of the second supporting rod 500 can be adjusted, meanwhile, the length of the third supporting rod 600 can be adjusted, and then the occupied area of the infusion support can be adjusted on the whole, when the number of people for infusion is small, the angle of the second supporting rod 500 and the angle of the first supporting rod 400 can be adjusted to be small, the occupied area of the second supporting rod is reduced, and medical staff and patients can move conveniently. When the number of infusion persons increases, the angle of the first support bar 400 and the second support bar 500 may be increased while the length of the third support bar 600 is lengthened to meet the infusion demands of more patients.

In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "rear," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A medical infusion support, which is characterized in that: the telescopic device comprises a base (100), wherein a telescopic rod (200) is arranged on the base (100), and a mounting disc (300) is arranged at the top of the telescopic rod (200);

a first supporting rod (400) is fixedly arranged on the mounting plate (300), the first supporting rod (400) is horizontally arranged, and the mounting plate (300) is positioned in the middle of the first supporting rod (400); first hooks (410) are respectively hung on the first support rod (400) and positioned at two sides of the mounting plate (300) at intervals;

the mounting plate (300) is provided with second support rods (500) in a rotating mode on two sides of the first support rods (400), and a first elastic clamping assembly (530) is arranged between the second support rods (500) and the mounting plate (300);

the first elastic clamping assembly (530) controls the second supporting rod (500) to rotate to a set angle, and a plurality of second hooks are hung on the lower side of the second supporting rod (500) at intervals.

2. A medical infusion support according to claim 1, wherein: a connecting shaft (510) is arranged between the second supporting rod (500) and the mounting plate (300); a plurality of first limiting holes (310) are formed in the upper side of the mounting plate (300) at equal angle intervals by taking the connecting shaft (510) as a circle center;

a first mounting hole (520) is formed in one side, close to the mounting disc (300), of the second support rod (500); the distance between the first mounting hole (520) and the connecting shaft (510) is equal to the distance between the first limiting hole (310) and the connecting shaft (510); the first mounting hole (520) diameter is greater than the first limiting hole (310) diameter;

the first elastic clamping assembly (530) comprises a sliding block (531) which is slidably connected in the first mounting hole (520), a first compression spring (532) is arranged in the first mounting hole (520), one end of the first compression spring (532) is abutted to the bottom of the first mounting hole (520), and the other end of the first compression spring is abutted to the sliding block (531); one end of the sliding block (531) far away from the first compression spring (532) is fixed with a first spherical surface (533), the area of the sliding block (531) is larger than the area of the first limiting hole (310), and the maximum diameter of the first spherical surface (533) is smaller than or equal to the diameter of the first limiting hole (310).

3. A medical infusion support according to claim 1, wherein: the end part of the first support rod (400) and/or the second support rod (500) far away from the mounting disc (300) is slidably provided with a third support rod (600), the lower side of the third support rod (600) is provided with a mounting bin (610), the mounting bin (610) is provided with a plurality of hooks along the length direction of the third support rod (600), the mounting bin (610) is rotationally provided with a third hook (620), and the third hook (620) can rotate in or out of the mounting bin (610).

4. A medical infusion support according to claim 3, wherein: a sliding hole (420) is formed in one end, far away from the mounting disc (300), of the first support rod (400) and/or the second support rod (500), and the third support rod (600) is slidably connected in the sliding hole (420); a plurality of second elastic clamping assemblies (640) are arranged on the third support rod (600) at intervals, and the second elastic clamping assemblies (640) can elastically limit sliding of the third support rod (600).

5. The medical infusion support of claim 4, wherein: a second mounting hole (630) is formed in the third supporting rod (600), the second mounting hole (630) is positioned at one side of the mounting bin (610),

the second elastic clamping assembly (640) comprises a limiting ring (641) which is connected to the outer end of the second mounting hole (630) in a threaded mode, a limiting column (642) is arranged in the second mounting hole (630) in a sliding mode, one end of the limiting column (642) penetrates out of the limiting ring (641), a second spherical surface (643) is arranged at one end of the limiting column (642) penetrating out of the limiting ring (641), and the other end of the limiting column is located in the second mounting hole (630);

a sliding ring (644) is fixed in the middle of the limiting column (642), and the sliding ring (644) is positioned in the second mounting hole (630) and can slide in the second mounting hole (630);

a second compression spring (645) is sleeved on the limiting column (642), and the second compression spring (645) is positioned on one side, far away from the limiting ring (641), of the sliding ring (644); the second compression spring (645) is in a compressed state, one end of the second compression spring is abutted against the bottom of the second mounting hole (630), and the other end of the second compression spring is abutted against the sliding ring (644); when the sliding ring (644) is abutted against the limiting ring (641), the second spherical surface (643) protrudes the limiting ring (641) completely or partially;

the inner wall of the sliding connection hole (420) is provided with a second limiting hole (430), and when the third support rod (600) slides in the sliding connection hole (420), the second spherical surface (643) can enter or slide out of the second limiting hole (430).

6. A medical infusion support according to claim 3, wherein: and a third clamping assembly (650) is arranged in the installation bin (610), and when the third hook (620) rotates into the installation bin (610), the third clamping assembly (650) elastically clamps the installation bin.

7. The medical infusion support of claim 6, wherein: the third clamping assembly (650) comprises a first supporting block (651) and a second supporting block (652) which are arranged at intervals, wherein the first supporting block (651) and the second supporting block (652) are positioned in the mounting bin (610) and are positioned on one side, close to the mounting disc (300), of the mounting bin (610); one end of the third hook (620) is rotatably connected between the first supporting block (651) and the second supporting block (652), the other end of the third hook is in a circular hook shape, and friction force exists between the first supporting block (651), the second supporting block (652) and the third hook (620);

when the third hook (620) is buckled in the installation bin (610), one side of the circular hook-shaped opening faces to the bottom of the installation bin (610).

8. A medical infusion support according to claim 1, wherein: the telescopic rod (200) comprises a sleeve (210) fixedly connected with the base (100), a sleeve rod (220) is connected in a sliding manner in the sleeve (210), and one end, far away from the base (100), of the sleeve (210) is connected with the mounting disc (300); the sleeve (210) is rotatably connected with a locking knob (230), and the locking knob (230) can abut against the sleeve rod (220) when screwed.

9. A medical infusion support according to claim 8, wherein: a storage box (700) is arranged on one side of the sleeve (210) away from the locking knob (230).