Return Device

Abstract

The present invention relates to a retractor, comprising an operating member and a pushing member. One end of the operating member has an operating portion, and the end of the operating member away from the operating portion has at least two supporting arms arranged opposite to each other, with a gap formed between the supporting arms. The pushing member is arranged at the gap between the supporting arms, and is used to push the internal organs. During clinical surgery, the end of the retractor away from the operating portion is placed into the patient's body, so that the pushing member contacts the internal organs in the body. The operating member is pushed toward the abdominal cavity, and under the action of external force, the pushing member can push the internal organs from the chest cavity to the abdominal cavity. The internal organs are returned from the chest cavity to the abdominal cavity by the pushing member arranged between the supporting arms, and the internal organs will not be clamped during the process of pushing the internal organs, so that damage to the internal organs can be avoided. In addition, the retractor has a simple structure and is easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a reducer. Background Art

[0002] Diaphragmatic hernia refers to a congenital developmental defect of the diaphragm, which causes the spleen, colon, kidneys and other abdominal visceral organs to enter the chest cavity through the defect in the diaphragm, thereby compressing the lungs and causing partial or complete atelectasis. Common types of diaphragmatic hernia are posterolateral diaphragmatic hernia and retrosternal hernia. During clinical surgery, laparoscopic minimally invasive surgery is usually used, assisted by the use of surgical instruments, and the abdominal visceral organs are returned from the chest cavity to the abdominal cavity through surgical instruments. However, in the process of returning the internal organs to the abdominal cavity, surgical instruments can easily damage the abdominal visceral organs. Summary of the invention

[0003] Based on this, it is necessary to provide a reductor that can avoid damaging internal organs.

[0004] A reducer, comprising:

[0005] An operating member, wherein one end of the operating member has an operating portion, and one end of the operating member away from the operating portion has at least two supporting arms arranged opposite to each other, with a gap formed between the supporting arms; and

[0006] The pushing member is arranged at the interval between the supporting arms and is used for pushing the internal organs.

[0007] In one embodiment, the pushing member is a flexible body, and the flexible body is transversely arranged at an end of the support arm away from the operating portion.

[0008] In one embodiment, the pushing member is a film.

[0009] In one embodiment, the receiver also includes a shell and an adjustment component for adjusting the spacing between the support arms, the shell is sleeved on the operating member, and the shell is provided with at least two gear holes; the adjustment component includes a connecting member, one end of the connecting member is connected to the operating member, and the other end of the connecting member is provided with a gear portion.

[0010] In one of the embodiments, the return device further includes a pressing component for pushing the shift portion, and the pressing component is disposed in the shift hole.

[0011] In one embodiment, the pressing assembly includes a sleeve, a pressure rod, a locking piece, an elastic piece and a push rod, the inner wall of the sleeve is provided with a plurality of first guide ribs, guide grooves are formed between the first guide ribs, and the ends of the first guide ribs have tooth grooves; the pressure rod is arranged in the sleeve, the outer wall of the pressure rod is provided with a second guide rib adapted to the guide groove, and the end of the pressure rod has meshing teeth; the outer wall of the locking piece is provided with a third guide rib, and the end of the third guide rib has a bevel tooth adapted to the tooth groove and the meshing teeth; one end of the push rod is pressed against the locking piece; one end of the elastic piece is abutted against the push rod, and the other end is abutted against the inner wall of the gear hole.

[0012] In one embodiment, the support arm is an arc-shaped arm, wherein two of the arc-shaped arms are arranged back to back.

[0013] In one embodiment, the operating member includes a first operating rod and a hollow second operating rod, and the first operating rod is movably disposed in a channel of the second operating rod.

[0014] In one embodiment, a sliding groove is provided at one end of the first operating rod away from the operating portion, and a plurality of limiting grooves are provided on the inner side wall of the second operating rod at intervals along the axial direction of the second operating rod;

[0015] The return device also includes at least two magnetic suction members and at least two magnetic limiting members, wherein the limiting members are slidably arranged in the slide groove, and the ends of the two limiting members with the same polarity are arranged opposite to each other, and the magnetic suction member is arranged between two adjacent limiting members.

[0016] In one embodiment, the magnetic attraction member includes an electromagnetic body and a coil, and the coil is arranged outside the electromagnetic body; the electromagnetic body is a U-shaped body, a part of the electromagnetic body is located in the slide groove, and the other part is located outside the slide groove.

[0017] During clinical surgery, the above-mentioned reducer is placed into the patient's body at one end away from the operating part, so that the pushing member contacts the internal organs in the body. The operating member is pushed toward the abdominal cavity, and under the action of external force, the pushing member can push the internal organs from the chest cavity to the abdominal cavity. In traditional diaphragmatic hernia surgery, surgical forceps are usually used to clamp the internal organs and return the internal organs from the chest cavity to the abdominal cavity; however, the surgical forceps are relatively hard, and the surgical forceps will clamp the internal organs in the process of pushing the internal organs, which can easily damage the internal organs. Compared with surgical forceps, this solution returns the internal organs from the chest cavity to the abdominal cavity through a pushing member provided between the support arms, and will not clamp the internal organs in the process of pushing the internal organs, which can avoid damage to the internal organs. In addition, the reducer has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a reducer according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A side view of the operating member of the reducer shown;

[0022] Figure 3 for Figure 2 A cross-sectional view of the operating member of the reducer shown along AA;

[0023] Figure 4 for Figure 1 An exploded view of the structure of the pressing assembly of the receptacle shown;

[0024] Figure 5 for Figure 4 A cross-sectional view of the sleeve of the reducer is shown.

[0025] Figure Number:

[0026] 10. operating member, 11. operating part, 12. supporting arm, 13. first operating rod, 131. sliding groove, 14. second operating rod, 141. limiting groove, 15. limiting member, 16. magnetic member, 20. pushing member, 30. shell, 31. gear hole, 40. adjusting component, 41. connecting member, 411. gear part, 50. pressing component, 51. sleeve, 511. first guide rib, 512. guide groove, 513. tooth groove, 52. pressure rod, 521. second guide rib, 522. meshing tooth, 53. locking member, 531. third guide rib, 532. bevel tooth, 54. elastic member, 55. push rod. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] See also Figure 1 , Figure 1 The schematic diagram of the structure of the reductor in one embodiment of the present invention is shown. The reductor provided in one embodiment of the present invention comprises an operating member 10 and a pushing member 20. One end of the operating member 10 has an operating portion 11, and one end of the operating member 10 away from the operating portion 11 has at least two supporting arms 12 arranged opposite to each other, with a gap formed between the supporting arms 12. The pushing member 20 is arranged at the gap between the supporting arms 12, and is used to push the internal organs.

[0029] During clinical surgery, the above-mentioned retractor is placed into the patient's body at one end away from the operating part 11, so that the pushing member 20 contacts the internal organs in the body. The operating member 10 is pushed toward the abdominal cavity, and under the action of external force, the pushing member 20 can push the internal organs from the chest cavity to the abdominal cavity. In traditional diaphragmatic hernia surgery, surgical forceps are usually used to clamp the internal organs and return the internal organs from the chest cavity to the abdominal cavity; however, the surgical forceps are relatively hard, and the surgical forceps will clamp the internal organs in the process of pushing the internal organs, which can easily damage the internal organs. Compared with surgical forceps, this solution returns the internal organs from the chest cavity to the abdominal cavity through the pushing member 20 provided between the support arms 12, and will not clamp the internal organs in the process of pushing the internal organs, which can avoid damage to the internal organs. In addition, the retractor has a simple structure and is easy to operate.

[0030] It should be noted that the interval between the support arms 12 refers to a certain distance between the support arms 12. Specifically in this embodiment, the interval between the support arms 12 refers to the two support arms 12 being arranged opposite to each other in an open state.

[0031] In one embodiment, the pusher 20 is a flexible body, and the flexible body is transversely arranged at the end of the support arm 12. It should be noted that, since the pusher 20 is a flexible body, under the action of external force, the pusher 20 can undergo a certain deformation. It is understandable that the transverse arrangement means that the sides of the pusher 20 are respectively connected to the support arm 12, so that the pusher 20 has a side with a larger area opposite to the internal organs. In clinical surgery, surgical forceps are usually used to push the internal organs back into the abdominal cavity. Since the hardness of the surgical forceps is high, and the surgical forceps will clamp the internal organs in the process of pushing the internal organs, it is easy to damage the internal organs. In this embodiment, a flexible pusher 20 is used to push the internal organs back into the abdominal cavity, which can avoid damaging the internal organs. In addition, since the pusher 20 is a flexible body, the interval between the support arms 12 can be adjusted to be suitable for returning different internal organs.

[0032] Optionally, the pusher 20 is a film. The film is arranged at the interval between the support arms 12, and both sides of the film are connected to the support arms 12. Since the pusher 20 is a film, the contact area between the film and the internal organs is large compared to surgical forceps, and the film is relatively soft, which can avoid damaging the internal organs. In addition, since the pusher 20 is a film, the film is relatively soft, so the interval size between the support arms 12 can be flexibly adjusted to accommodate different internal organs. Of course, in other embodiments, the pusher 20 can also be a flexible net, a corrugated telescopic plate, etc.

[0033] In one embodiment, see Figure 1 and Figure 2 , Figure 1 FIG. 2 shows a schematic diagram of the structure of a reducer in an embodiment of the present invention. Figure 2The side view of the operating member of the retractor according to one embodiment of the present invention is shown. The retractor further includes a housing 30 and an adjusting assembly 40 for adjusting the spacing between the support arms 12. The housing 30 is sleeved on the operating member 10, and the housing 30 is provided with at least two gear holes 31. The adjusting assembly 40 includes a connecting member 41, one end of the connecting member 41 is connected to the operating member 10, and the other end of the connecting member 41 is provided with a gear portion 411. It should be understood that there are at least two gear holes 31, and the gear holes 31 are arranged at intervals along the axial direction of the housing 30. When the retractor is used, the operating member 10 is pulled, and the support arm 12 moves to the side close to the housing 30, so that part of the structure of the support arm 12 is accommodated in the housing 30, so that the spacing between the support arms 12 becomes smaller, so that it is suitable for retracting different internal organs. Of course, the operating member 10 can also be pushed to move part of the support arm 12 accommodated in the housing 30 to the side away from the housing 30, so that the spacing between the support arms 12 becomes larger, so that it is suitable for retracting different internal organs. In the process of pushing or pulling the operating member 10, the connecting member 41 moves with the operating member 10. When the operating member 10 moves to the position of the shift hole 31, the shift portion 411 is inserted and engaged in the shift hole 31, so that the operating member 10 cannot move, and the pushing member 20 can be used to return the internal organs from the chest cavity to the abdominal cavity. When the interval between the support arms 12 needs to be adjusted again, the shift portion 411 is withdrawn from the shift hole 31, so that the operating member 10 can be moved to accommodate different internal organs.

[0034] It should be noted that under the action of external force, the support arms 12 can be deformed and moved closer to each other, so that the interval between the support arms 12 can be adjusted. Of course, in other embodiments, the support arms 12 can also be movably connected, and under the action of external force, the support arms 12 can be opened or closed.

[0035] In one embodiment, see Figure 1 , Figure 1 The schematic diagram of the structure of the return device in one embodiment of the present invention is shown. The return device also includes a pressing component 50 for pushing the shift portion 411, and the pressing component 50 is arranged in the shift hole 31. It should be noted that the pressing component 50 is movably arranged in the shift hole 31. Since the pressing component 50 is arranged in the shift hole 31, by pressing the pressing component 50, the pressing component 50 can push the shift portion 411 to move into the shell 30, so that the shift portion 411 exits the shift hole 31, so that the operating member 10 can be pushed according to actual needs, which is more convenient to use.

[0036] In one embodiment, see Figure 1 , Figure 4 and Figure 5 , Figure 1 FIG. 2 shows a schematic diagram of the structure of a reducer in an embodiment of the present invention. Figure 4 Shows Figure 1 The structural exploded view of the pressing assembly of the receptacle shown, Figure 5 Shows Figure 4 The sectional view of the sleeve of the retractor shown in FIG. 5 is a diagram of a press assembly 50. The press assembly 50 includes a sleeve 51, a pressure rod 52, a locking member 53, an elastic member 54 and a push rod 55. The inner wall of the sleeve 51 is provided with a plurality of first guide ribs 511, a guide groove 512 is formed between two adjacent first guide ribs 511, and the end of the first guide rib 511 has a tooth groove 513. The pressure rod 52 is movably arranged in the sleeve 51, and the outer wall of the pressure rod 52 is provided with a second guide rib 521 adapted to the guide groove 512, and the end of the pressure rod 52 has a meshing tooth 522. The outer wall of the locking member 53 is provided with a third guide rib 531, and the end of the third guide rib 531 has a bevel tooth 532 adapted to the tooth groove 513 and the meshing tooth 522. One end of the push rod 55 is pressed against the locking member 53. One end of the elastic member 54 is abutted against the push rod 55, and the other end is abutted against the inner wall of the gear hole 31. It should be noted that when no external force acts on the pressing assembly 50, the meshing teeth 522 of the pressing rod 52 partially mesh with the bevel teeth 532 of the locking member 53. When the shift portion 411 needs to be pushed out of the shift hole 31, the pressing rod 52 is pressed, and the second guide rib 521 of the pressing rod 52 moves along the guide groove 512 toward the side close to the elastic member 54, and the pressing rod 52 drives the locking member 53 and the push rod 55 to move toward the side close to the elastic member 54, at which time the elastic member 54 is in a compressed state. When the pressing rod 52 moves to a certain position, the meshing teeth 522 of the pressing rod 52 are fully meshed with the bevel teeth 532 of the locking member 53. After the external force acting on the pressing rod 52 is removed, the pressing rod 52 and the locking member 53 move to the side away from the elastic member 54 under the action of the elastic member 54, and the inclined teeth 532 of the locking member 53 press against the tooth groove 513 of the sleeve 51, so that the shift portion 411 can be pushed out of the shift hole 31 through the push rod 55. After the shift portion 411 is pushed out of the shift hole 31, the pressing rod 52 is pressed again, and under the cooperation of the meshing teeth 522 of the pressing rod 52 and the inclined teeth 532 of the locking member 53, the locking member 53 rotates, and the third guide rib 531 of the locking member 53 moves along the guide groove 512 to the side away from the elastic member 54, so as to drive the push rod 55 to retract, so that the shift portion 411 can be inserted and stuck in the shift hole 31.

[0037] In one embodiment, see Figure 1 and Figure 2 , Figure 1 FIG. 2 shows a schematic diagram of the structure of a reducer in an embodiment of the present invention. Figure 2A side view of the operating member of the retractor in one embodiment of the present invention is shown. The support arm 12 is an arc-shaped arm, wherein the two arc-shaped arms are arranged in a back-to-back manner. It should be noted that the arc-shaped arms arranged in a back-to-back manner refer to the support arm 12 being bent toward a side away from the other support arm 12 arranged opposite thereto. Since the support arm 12 is an arc-shaped arm, and the two arc-shaped arms are arranged in a back-to-back manner, the support arm 12 can be prevented from damaging the internal organs; and the arc-shaped arms arranged in a back-to-back manner can better support the pusher 20, which is conducive to pushing the internal organs and has a better use effect.

[0038] In one embodiment, see Figure 1 and Figure 3 , Figure 1 FIG. 2 shows a schematic diagram of the structure of a reducer in an embodiment of the present invention. Figure 3 Shows Figure 2 The operating member 10 includes a first operating rod 13 and a hollow second operating rod 14, wherein the first operating rod 13 is movably disposed in the second operating rod 14. During clinical surgery, the first operating rod 13 is adjusted according to different positions of the internal organs, for example, the first operating rod 13 is moved toward a side close to the second operating rod 14, or the first operating rod 13 is moved toward a side away from the second operating rod 14, so as to adjust the length of the operating member 10, thereby being suitable for returning the internal organs at different positions from the chest cavity to the abdominal cavity, and being more flexible to use.

[0039] In one embodiment, see Figure 1 and Figure 3 , Figure 1 FIG. 2 shows a schematic diagram of the structure of a reducer in an embodiment of the present invention. Figure 3 Shows Figure 2The operating member of the reducer shown is a cross-sectional view along AA. A slide groove 131 is provided at one end of the first operating rod 13 away from the operating portion 11, and a plurality of limit grooves 141 are provided on the inner side wall of the second operating rod 14 along the axial direction of the second operating rod 14. The reducer also includes at least two magnetic members 16 and at least two magnetic limit members 15, the limit members 15 are slidably arranged in the slide groove 131, and the ends of the two limit members 15 with the same polarity are arranged relative to each other. The magnetic member 16 is arranged between two adjacent limit members 15. It should be noted that since the ends of the two limit members 15 with the same polarity are arranged relative to each other, when the magnetic member 16 is not energized, there is a repulsive force between the limit members 15, so that the limit member 15 is stuck in the limit groove 141, and the first operating rod 13 and the second operating rod 14 remain relatively motionless. When the magnetic element 16 is energized, under the action of the magnetic force generated by the magnetic element 16, the limiting element 15 moves toward the side close to the magnetic element 16, and the limiting element 15 disengages from the limiting groove 141, thereby driving the first operating rod 13 to move toward or away from the side of the second operating rod 14, thereby adjusting the length of the operating element 10 to be suitable for returning internal organs in different positions from the chest cavity to the abdominal cavity, which is more flexible to use.

[0040] Of course, in other embodiments, the first operating rod 13 is provided with an external thread at one end away from the operating part 11, and the second operating rod 14 is provided with an internal thread on the inner wall close to the first operating rod 13. The first operating rod 13 and the second operating rod 14 are connected by the internal and external threads, and the length of the operating member 10 can be adjusted by cooperating with the external thread of the first operating rod 13 and the internal thread of the second operating rod 14, so as to be suitable for returning internal organs in different positions from the chest cavity to the abdominal cavity, which is more flexible to use.

[0041] In one embodiment, the magnetic attraction member 16 includes an electromagnetic body and a coil, and the coil is disposed outside the electromagnetic body. When the coil is energized, the electromagnetic body generates a magnetic attraction force, and under the action of the magnetic attraction force, the limit member 15 is attracted to move toward the side close to the magnetic attraction member 16, so that the limit member 15 is separated from the limit slot 141, and the length of the operating member 10 is adjusted. When the coil is not energized, the electromagnetic body does not generate a magnetic attraction force. Since the ends of the two limit members 15 with the same polarity are arranged relative to each other, the limit members 15 are stuck in the limit slot 141, and the first operating rod 13 and the second operating rod 14 remain relatively motionless.

[0042] Further, see Figure 3 , Figure 3 Shows Figure 2The operating part of the reducer is shown in a cross-sectional view along AA. The electromagnetic body is a U-shaped structure, a part of the electromagnetic body is located in the slide slot 131, and the other part is located outside the slide slot 131. It should be noted that the ends of the U-shaped electromagnetic body with stronger magnetism are respectively facing the limiter 15. Since the electromagnetic body is a U-shaped structure, and the two ends of the electromagnetic body are respectively located in the slide slot 131 and outside the slide slot 131, the electromagnetic interference between the magnetic suction parts 16 can be reduced.

[0043] In one embodiment, the first operating rod 13 and the second operating rod 14 are non-magnetic rods. Optionally, the first operating rod 13 and the second operating rod 14 can be plastic rods, copper rods, stainless steel rods, etc. Since the first operating rod 13 and the second operating rod 14 are non-magnetic rods, the first operating rod 13 and the second operating rod 14 can be prevented from being magnetized.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A reducer, characterized in that: The reducer comprises: An operating member, wherein one end of the operating member has an operating portion, and one end of the operating member away from the operating portion has at least two supporting arms arranged opposite to each other, with a gap formed between the supporting arms, and the supporting arms are arc-shaped arms, wherein two of the arc-shaped arms are arranged in back-to-back relationship; and A pushing member, arranged at the interval between the support arms, for pushing the internal organs, wherein the pushing member is a flexible body, and the flexible body is transversely arranged at one end of the support arm away from the operating part; A housing and an adjustment assembly for adjusting the spacing between the support arms, wherein the housing is sleeved on the operating member and is provided with at least two gear holes; the adjustment assembly comprises a connecting member, one end of which is connected to the operating member, and the other end of which is provided with a gear portion; A pressing assembly, which is used to push the gear part, and is arranged in the gear hole. The pressing assembly includes a sleeve, a pressure rod, a locking piece, an elastic piece and a push rod. The inner wall of the sleeve is provided with a plurality of first guide ribs, guide grooves are formed between the first guide ribs, and the ends of the first guide ribs have tooth grooves; the pressure rod is arranged in the sleeve, and the outer wall of the pressure rod is provided with a second guide rib matched with the guide groove, and the end of the pressure rod has meshing teeth; the outer wall of the locking piece is provided with a third guide rib, and the end of the third guide rib has a bevel tooth matched with the tooth groove and the meshing teeth; one end of the push rod is pressed against the locking piece; one end of the elastic piece is abutted against the push rod, and the other end is abutted against the inner wall of the gear hole.

2. The receptacle according to claim 1, characterized in that: The pushing member is a film.

3. The receptacle according to claim 1, characterized in that: The pushing member is a flexible net.

4. The receptacle according to claim 1, characterized in that: The pushing member is a corrugated telescopic plate.

5. The receptacle according to any one of claims 1 to 4, characterized in that: The operating member comprises a first operating rod and a hollow second operating rod, wherein the first operating rod is movably arranged in a channel of the second operating rod.

6. The receptacle according to claim 5, characterized in that: A sliding groove is provided at one end of the first operating rod away from the operating portion, and a plurality of limiting grooves are provided on the inner side wall of the second operating rod at intervals along the axial direction of the second operating rod; The return device also includes at least two magnetic suction members and at least two magnetic limiting members, wherein the limiting members are slidably arranged in the slide groove, and the ends of the two limiting members with the same polarity are arranged opposite to each other, and the magnetic suction member is arranged between two adjacent limiting members.

7. The receptacle according to claim 6, characterized in that: The magnetic attraction component includes an electromagnetic body and a coil, and the coil is arranged outside the electromagnetic body.

8. The receptacle according to claim 7, characterized in that: The electromagnetic body is a U-shaped body, a part of the electromagnetic body is located in the slide slot, and the other part is located outside the slide slot.

9. The receptacle according to claim 5, characterized in that: The first operating rod and the second operating rod are non-magnetic rods.

10. The receptacle according to claim 5, characterized in that: An end of the first operating rod away from the operating portion is provided with an external thread, and an inner wall of the second operating rod close to the first operating rod is provided with an internal thread, and the first operating rod and the second operating rod are connected via the external thread and the internal thread.

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