Field medical waste collection device

Abstract

The present application relates to the technical field of field equipment, especially to a field medical excretion collecting device. The present application comprises a matching support cavity, a portable handle fixed on the top of the matching support cavity, and an excretion collecting mechanism arranged on the inner side of the matching support cavity. Through the structural design of the excretion collecting mechanism and the portable handle, the present device can collect the excretion of patients with infectious diseases, disinfect the excretion in time, cover the matching support cavity after the collection is completed, and be convenient to carry and move through the portable handle during use, thereby increasing the convenience of use, adapting to the field environment, and through the structural design of the auxiliary sealing mechanism and the carrying limiting mechanism, the present device can heat-seal the excretion collecting bag, press and butt the buckling butt strips on both sides of the excretion collecting bag, form two-seal protection, and increase the firmness and safety of the sealing.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of field medical equipment, in particular to a field medical excretion collection device. BACKGROUND

[0002] At present, the field infectious disease medical institution is a special team in the mobile medical service detachment. The characteristics of infectious diseases make the general mobile medical service detachment medical treatment platform mainly for war injury treatment unable to be applied to infectious disease medical institutions. The field infectious disease medical institution is deployed as a campaign support force on the battlefield, and the main task is to quickly judge the type of infectious disease and report it, and to provide specialized treatment for infectious disease patients who stay in the institution;

[0003] The excreta of infectious disease patients may contain pathogens, so the excreta need to be treated in time after the patient excretes, and therefore an excretion collection device is needed. The research and application of the excretion collection device play an important role in the field of military medicine. In complex military operations or wild survival environment, the maintenance of sanitary conditions is crucial for maintaining the health and combat effectiveness of soldiers;

[0004] However, in the prior art, a special toilet is usually used for infectious disease patients. Since the pathogens in the excreta fall into the toilet bowl in the wild environment, it is not convenient to quickly collect and treat the excreta, which may pollute the surrounding air and affect the health of others. Therefore, a field medical excretion collection device is proposed. SUMMARY

[0005] The present application aims to provide a field medical excretion collection device to solve the problems raised in the background.

[0006] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0007] A field medical excretion collection device, comprising a matching support cavity and a portable handle fixed on the top of the matching support cavity, the inner side of the matching support cavity is equipped with an excretion collection mechanism, the excretion collection mechanism is used for collecting the excreta of patients, the excretion collection mechanism comprises a sliding slot, a sealing plate and an excretion collection bag, the two sides of the matching support cavity are provided with sliding slots, the inner side of the sliding slot is slidably connected with a sealing plate, and the inner side of the matching support cavity is equipped with an excretion collection bag.

[0008] Preferably, the excretion collecting mechanism further comprises a micro motor, a mounting side plate and a bidirectional threaded rod, one end of the inner side of the sliding channel is fixedly provided with the mounting side plate, one side of one of the mounting side plates is fixedly provided with the micro motor, a bidirectional threaded rod is rotatably connected between the two sliding channels, the two ends of the bidirectional threaded rod are oppositely threaded, the output end of the micro motor is fixedly connected with the bidirectional threaded rod through one of the mounting side plates, and the sealing plates are threadedly connected with the bidirectional threaded rod.

[0009] Preferably, an adhesive strip is arranged at the top edge of the excretion collecting bag, the adhesive strip is adhered to the inner side of the matching support cavity, and a plurality of buckling butt joint strips are fixedly arranged on the two sides of the excretion collecting bag.

[0010] Preferably, a back plate is inserted into one end of the matching support cavity, one side of the back plate is fixedly provided with a bearing plate, a storage groove is formed in the top of the bearing plate, and the bottom of the excretion collecting bag is located at the inner side of the storage groove.

[0011] Preferably, the inner side of the matching support cavity is further provided with an auxiliary sealing mechanism, the auxiliary sealing mechanism comprises a force applying piece and a butt joint piece, one end of the top of the matching support cavity is rotatably connected with a vertical shaft rod, the top of the vertical shaft rod is fixedly provided with a rotating disc, the bottom of the vertical shaft rod is provided with the force applying piece, and the inner side of the force applying piece is provided with the butt joint piece.

[0012] Preferably, the force applying piece comprises a flat conical frustum, a swing adjusting arm, a roller mounting shell, a carrying positioning rod, a fixed head and a first connecting spring, the bottom of the vertical shaft rod is fixedly provided with the flat conical frustum, the two sides of the top of the inner side of the matching support cavity are fixedly provided with the carrying positioning rod, the bottom of the carrying positioning rod is rotatably connected with the swing adjusting arm, one end of the swing adjusting arm is fixedly provided with the roller mounting shell, the inner side of the roller mounting shell is rotatably connected with a roller, the roller is in contact with the flat conical frustum, the top of the swing adjusting arm and the position close to the roller mounting shell are fixedly provided with the fixed head, and a first connecting spring is fixedly arranged between the two fixed heads.

[0013] Preferably, the butt joint piece comprises a horizontal guide rail, a force applying rod, a force transmission L-shaped rod and a sealing electric heating strip, one end of the swing adjusting arm away from the roller mounting shell is rotatably connected with the force applying rod, the bottom of one end of the force applying rod is rotatably connected with the force transmission L-shaped rod, the bottom of the force transmission L-shaped rod is slidably connected with the horizontal guide rail, one end of the horizontal guide rail is fixedly connected with the inner side of the matching support cavity, and the top of the force transmission L-shaped rod is fixedly provided with the sealing electric heating strip.

[0014] Preferably, a carrying limiting mechanism is arranged between the matching support cavity and the rotating disc, and the carrying limiting mechanism is used for limiting the rotation of the rotating disc.

[0015] Preferably, the mounting limiting mechanism comprises an anti-dropping rod, a peripheral fixing ring, a second connecting spring and limiting holes, the top of the rotating disc is slidably connected with the anti-dropping rod, the outer side of the anti-dropping rod is fixedly connected with the peripheral fixing ring, the top of the peripheral fixing ring is fixedly connected with the second connecting spring, the top of the second connecting spring is fixed with the rotating disc, the peripheral fixing ring is sleeved on the outer side of the anti-dropping rod, and the top of the matching support cavity is provided with two limiting holes corresponding in position to the anti-dropping rod, and the limiting holes are slidably connected with the anti-dropping rod.

[0016] It can be seen without doubt that the above technical solutions of the present application can certainly solve the technical problems to be solved by the present application.

[0017] Meanwhile, through the above technical solutions, the present application has at least the following beneficial effects:

[0018] 1. Through the structural design of the excretion collecting mechanism and the portable handle, the device can collect the excrement of the infectious disease patient, and can also disinfect the excrement in time, and can cover the matching support cavity when the collection is completed, and can be carried and moved through the portable handle during use, thereby increasing the convenience of use and being suitable for the field environment.

[0019] 2. Through the structural design of the auxiliary sealing mechanism and the mounting limiting mechanism, the device can heat-seal the excretion collecting bag, and can press and connect the buckling butt joint strips on both sides of the excretion collecting bag, thereby forming two sealing protections, and increasing the firmness and safety of the sealing. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic view of the present application;

[0022] Figure 2 is a sectional structural schematic view of the matching support cavity of the present application;

[0023] Figure 3 is a connecting structural schematic view of the matching support cavity and the sliding through slot of the present application;

[0024] Figure 4 is a connecting structural schematic view of the excretion collecting bag and the adhesive strip of the present application;

[0025] Figure 5The schematic view of the connecting structure of the matching support cavity and the back plate of the present application;

[0026] Figure 6 The schematic view of the connecting structure of the vertical shaft and the flat conical circular truncated cone of the present application;

[0027] Figure 7 The schematic view of the connecting structure of the rotating wheel disc and the vertical shaft of the present application;

[0028] Figure 8 The schematic view of the connecting structure of the anti-dropping rod and the limiting hole of the present application.

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] In the drawings, 1 is a matching support cavity, 2 is a portable handle, 3 is a sliding through slot, 4 is a micro motor, 5 is a mounting side plate, 6 is a bidirectional threaded rod, 7 is a sealing plate, 8 is a drainage collection bag, 9 is an adhesive strip, 10 is a buckling butt joint strip, 11 is a back plate, 12 is a bearing plate, 13 is a storage groove, 14 is a rotating wheel disc, 15 is a vertical shaft, 16 is a flat conical circular truncated cone, 17 is a swing adjusting arm, 18 is a roller mounting shell, 19 is a carrying positioning rod, 20 is a fixed head, 21 is a first connecting spring, 22 is a horizontal guide rail, 23 is a force applying rod, 24 is a force transmission L-shaped rod, 25 is a sealing electric heating strip, 26 is an anti-dropping rod, 27 is a peripheral fixing ring, 28 is a second connecting spring, and 29 is a limiting hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0032] Example 1

[0033] Reference Figures 1-6 A field medical drainage collection device, comprising a matching support cavity 1, and a portable handle 2 fixed on the top of the matching support cavity 1, the inner side of the matching support cavity 1 is equipped with a drainage collection mechanism, the drainage collection mechanism is used for collecting the excrement of a patient, the drainage collection mechanism comprises a sliding through slot 3, a sealing plate 7 and a drainage collection bag 8, the two sides of the matching support cavity 1 are both provided with the sliding through slot 3, the inner side of the sliding through slot 3 is both slidably and sealingly connected with the sealing plate 7, and the inner side of the matching support cavity 1 is equipped with the drainage collection bag 8, the drainage collection bag 8 contains a disinfectant, so as to facilitate disinfection of the excrement in the drainage collection bag 8.

[0034] The excretion collecting mechanism further comprises a micro motor 4, a mounting side plate 5 and a bidirectional threaded rod 6, one end of the inner side of the sliding channel 3 is fixed with the mounting side plate 5, one side of one of the mounting side plates 5 is fixed with the micro motor 4, a bidirectional threaded rod 6 is rotatably connected between the two sliding channels 3, the two ends of the bidirectional threaded rod 6 are oppositely threaded, the output end of the micro motor 4 is fixed with the bidirectional threaded rod 6 through one of the mounting side plates 5, and the sealing plates 7 are threadedly connected with the bidirectional threaded rod 6. When the micro motor 4 is turned on, the output end of the micro motor 4 drives the bidirectional threaded rod 6 to rotate, so that the two sealing plates 7 move along the inner side of the sliding channel 3 towards each other, so that the top of the matching support cavity 1 is closed.

[0035] The top edge of the excretion collecting bag 8 is provided with an adhesive strip 9, the adhesive strip 9 is adhered to the inner side of the matching support cavity 1, and a plurality of buckling butt strips 10 are uniformly fixed on the two sides of the excretion collecting bag 8. The buckling butt strip 10 is a structure commonly used in plastic bags and will not be described here.

[0036] One end of the matching support cavity 1 is inserted with a back plate 11, one side of the back plate 11 is fixed with a bearing plate 12, the top of the bearing plate 12 is provided with a storage groove 13, and the bottom of the excretion collecting bag 8 is located on the inner side of the storage groove 13. Through the cooperation of the bearing plate 12 and the storage groove 13, the excretion collecting bag 8 can be conveniently carried during the process of collecting excretion, so as to prevent the adhesive strip 9 from being separated from the matching support cavity 1.

[0037] The inner side of the matching support cavity 1 is further provided with an auxiliary sealing mechanism, the auxiliary sealing mechanism comprises a force applying member and a butt joint member, one end of the top of the matching support cavity 1 is rotatably connected with a vertical shaft 15, the top of the vertical shaft 15 is fixed with a rotating disc 14, the bottom of the vertical shaft 15 is provided with the force applying member, and the inner side of the force applying member is provided with the butt joint member.

[0038] The force applying member comprises a flat conical frustum 16, a swing adjusting arm 17, a roller mounting shell 18, a carrying positioning rod 19, a fixed head 20 and a first connecting spring 21, the bottom of the vertical shaft 15 is fixed with the flat conical frustum 16, the two sides of the top of the inner side of the matching support cavity 1 are fixed with the carrying positioning rod 19, the bottom of the carrying positioning rod 19 is rotatably connected with the swing adjusting arm 17, one end of the swing adjusting arm 17 is fixed with the roller mounting shell 18, the inner side of the roller mounting shell 18 is rotatably connected with a roller, the roller is in contact with the flat conical frustum 16, the top of the swing adjusting arm 17 and the position close to the roller mounting shell 18 are fixed with the fixed head 20, a first connecting spring 21 is fixed between the two fixed heads 20, the two sides of the flat conical frustum 16 are protruding, and the cross section of the flat conical frustum 16 is oval.

[0039] The docking components include a horizontal guide rail 22, a force-applying rod 23, a force-transmitting L-shaped rod 24, and a sealing heating strip 25. The end of the swing adjustment arm 17 furthest from the roller mounting housing 18 is rotatably connected to the force-applying rod 23. The bottom of one end of the force-applying rod 23 is rotatably connected to the force-transmitting L-shaped rod 24. The bottom of the force-transmitting L-shaped rod 24 is slidably connected to the horizontal guide rail 22. One end of the horizontal guide rail 22 is fixed to the inside of the mating support cavity 1. The top of the force-transmitting L-shaped rod 24 is fixed to the sealing heating strip 25. The specific structure and communication principle of the sealing heating strip 25 are existing mature technologies and will not be elaborated here. The horizontal guide rail 22 facilitates the guidance of the movement of the force-transmitting L-shaped rod 24.

[0040] Example 2

[0041] Further optimizations to Example 1, specifically, such as... Figures 7-8 As shown, a mounting restriction mechanism is installed between the support cavity 1 and the rotating disk 14. The mounting restriction mechanism is used to limit the rotation of the rotating disk 14.

[0042] The restraining mechanism includes an anti-detachment rod 26, an outer fixing ring 27, a second connecting spring 28, and limiting holes 29. The anti-detachment rod 26 is slidably connected to the top of the rotating wheel 14. The outer fixing ring 27 is fixed to the outside of the anti-detachment rod 26, and the second connecting spring 28 is fixed to the top of the outer fixing ring 27. The top of the second connecting spring 28 is fixed to the rotating wheel 14. The outer fixing ring 27 is sleeved on the outside of the anti-detachment rod 26. Two limiting holes 29 corresponding to the positions of the anti-detachment rod 26 are opened on the top of the supporting cavity 1. The limiting holes 29 are slidably connected to the anti-detachment rod 26. The two limiting holes 29 are connected by a vertical shaft 1. With 5 as the center and an arc of 90°, in the initial state, the protrusions on both sides of the flat conical frustum 16 correspond to the position of one of the limiting holes 29. When the two sealing heating strips 25 heat-melt the excretion collection bag 8, the protrusions on both sides of the flat conical frustum 16 correspond to the position of the other limiting hole 29. When rotating the vertical shaft 15, the anti-detachment rod 26 is pulled upward first, so that the outer fixing ring 27 compresses the second connecting spring 28 to retract. After the vertical shaft 15 is rotated to the designated position, the anti-detachment rod 26 is released, so that the anti-detachment rod 26 is inserted into the corresponding limiting hole 29, forming a rotation limit on the vertical shaft 15.

[0043] In summary:

[0044] This invention addresses the technical problem of using dedicated toilets for patients with infectious diseases in the wild. However, in such environments, pathogens from excrement fall into the toilet bowl, making rapid and centralized treatment difficult and potentially polluting the surrounding air and affecting the health of others. The invention employs the technical solutions described in the above embodiments. Furthermore, the implementation process of these technical solutions is as follows:

[0045] The electrical elements in the device are all prior art, and the model is only one of them. As long as the electrical elements can achieve the purpose in the device, they can be used. All electrical components in the device and their corresponding power sources are connected by wires, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should be referred to in the working principle. The working order of each electrical component is completed, and the detailed connection method is a well-known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0046] In use, the micro motor 4 is turned on, the output end of the micro motor 4 drives the two-way threaded rod 6 to rotate, so that the two sealing plates 7 move along the inner side of the sliding groove 3 to the direction away from each other, so that the top of the matching support cavity 1 is opened, and then the patient sits on the matching support cavity 1 to excrete, and the excrement falls into the excretion collection bag 8. Since the bottom of the excretion collection bag 8 is located in the storage groove 13, the bearing plate 12 supports the bottom of the excretion collection bag 8, preventing the adhesive strip 9 from separating from the matching support cavity 1.

[0047] After excretion, the output end of the micro motor 4 is reversed to rotate, so that the two sealing plates 7 close the top of the matching support cavity 1, and then the rotating wheel disc 14 is rotated, so that the vertical shaft rod 15 drives the flat conical frustum 16 to rotate. At this time, the two side protrusions of the flat conical frustum 16 push the rollers inside the roller mounting shell 18, so that the swing adjusting arm 17 rotates along the bottom of the lapping positioning rod 19, and the first connecting spring 21 is stretched to produce deformation, that is, the two swing adjusting arms 17 can rotate in opposite directions. Because the swing adjusting arm 17 is rotationally connected with the force applying rod 23, the force applying rod 23 is rotationally connected with the force transmission L-shaped rod 24, the force transmission L-shaped rod 24 is slidingly connected with the horizontal guide rail 22, and the force transmission L-shaped rod 24 is fixed with the sealing electric heating strip 25, so that the two sealing electric heating strips 25 can move towards each other. Until the two sealing electric heating strips 25 heat-seal the position above the buckling butt joint strip 10 on the excretion collection bag 8, and simultaneously clamp the corresponding buckling butt joint strip 10, forming a double seal, and the adhesive strip 9 is torn off from the inner side of the matching support cavity 1 under the push of the two sealing electric heating strips 25.

[0048] Finally, the back plate 11 is separated from the matching support cavity 1, and at this time the excretion collection bag 8 in the storage groove 13 is taken out for centralized collection. After the excrement is collected, it can be sterilized by heat treatment and radiation sterilization to kill the pathogens carried in the excrement.

[0049] Through the above settings, the technical problems can be solved, and the following technical effects can be achieved:

[0050] 1. The application is convenient for collecting excreta of infectious disease patients, and can disinfect the excreta in time, and can cover the supporting cavity 1 when the collection is completed, and can be conveniently carried and moved through the portable handle during use, thereby increasing the convenience of use and being suitable for field environment.

[0051] 2. The application is convenient for collecting excreta of infectious disease patients, and can disinfect the excreta in time, and can cover the supporting cavity 1 when the collection is completed, and can be conveniently carried and moved through the portable handle during use, thereby increasing the convenience of use and being suitable for field environment.

[0052] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "linking", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Obviously, the above-described embodiments are only a part of the embodiments of the present application, and are not all the embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A field medical waste collection device, comprising: The utility model provides a portable urine collection device, including cooperation support cavity (1) and portable handle (2) fixed in cooperation support cavity (1) top, the inside of cooperation support cavity (1) is equipped with excretion collection mechanism, and the excretion collection mechanism is used for collecting the excretion of patient, and the excretion collection mechanism includes sliding through slot (3), sealing plate (7) and excretion collection bag (8), both sides of cooperation support cavity (1) are provided with sliding through slot (3), the inside of sliding through slot (3) is slidably connected with sealing plate (7), and the inside of cooperation support cavity (1) is equipped with excretion collection bag (8), the inside of cooperation support cavity (1) is also equipped with auxiliary sealing mechanism, and the auxiliary sealing mechanism includes force applying piece and butt joint, one end of cooperation support cavity (1) top is rotatably connected with vertical shaft rod (15), and the top of vertical shaft rod (15) is fixed with rotary wheel disc (14), and the bottom of vertical shaft rod (15) is equipped with force applying piece, and the inside of force applying piece is equipped with butt joint, and the force applying piece includes flat conical frustum (16), swing adjusting arm (17), gyro wheel installation shell (18), carries positioning rod (19), fixed head (20) and first connecting spring (21), the bottom of vertical shaft rod (15) is fixed with flat conical frustum (16), both sides of cooperation support cavity (1) inside top are fixed with carries positioning rod (19), and the bottom of carries positioning rod (19) is rotatably connected with swing adjusting arm (17), and one end of swing adjusting arm (17) is fixed with gyro wheel installation shell (18), and the inside of gyro wheel installation shell (18) is rotatably connected with gyro wheel, and gyro wheel is in contact with flat conical frustum (16), and the top of swing adjusting arm (17) and the position close to gyro wheel installation shell (18) are fixed with fixed head (20), and the first connecting spring (21) is fixed between two fixed head (20), and the butt joint includes horizontal guide (22), force applying rod (23), power transmission L type rod (24) and sealing electric heating strip (25), and one end of swing adjusting arm (17) away from gyro wheel installation shell (18) is rotatably connected with force applying rod (23), and the bottom of force applying rod (23) one end is rotatably connected with power transmission L type rod (24), and the bottom of power transmission L type rod (24) is slidably connected with horizontal guide (22), and one end of horizontal guide (22) is fixed with the inside of cooperation support cavity (1), and the top of power transmission L type rod (24) is fixed with sealing electric heating strip (25).

2. The field medical excretion collection device of claim 1, wherein, The excretion collecting mechanism further comprises a micro motor (4), a mounting side plate (5) and a bidirectional threaded rod (6), one end of the inner side of the sliding through slot (3) is fixed with the mounting side plate (5), one side of one of the mounting side plates (5) is fixed with the micro motor (4), a bidirectional threaded rod (6) is rotatably connected between the two sliding through slots (3), the two ends of the bidirectional threaded rod (6) are oppositely threaded, the output end of the micro motor (4) penetrates one of the mounting side plates (5) and is fixed with the bidirectional threaded rod (6), and the sealing plates (7) are in threaded connection with the bidirectional threaded rod (6).

3. The field medical waste collection device of claim 1, wherein, The top edge of the excretion collecting bag (8) is provided with an adhesive strip (9), the adhesive strip (9) is adhered to the inner side of the matching support cavity (1), and a plurality of buckling butt strips (10) are fixedly arranged on the two sides of the excretion collecting bag (8).

4. The field medical waste collection device of claim 3, wherein, One end of the matching support cavity (1) is inserted with a back plate (11), one side of the back plate (11) is fixed with a bearing plate (12), the top of the bearing plate (12) is provided with a storage groove (13), and the bottom of the excretion collecting bag (8) is located on the inner side of the storage groove (13).

5. The field medical waste collection device of claim 1, wherein, The matching support cavity (1) and the rotating wheel disc (14) are assembled with a carrying limiting mechanism, and the carrying limiting mechanism is used for limiting the rotation of the rotating wheel disc (14).

6. The field medical waste collection device of claim 5, wherein, The carrying limiting mechanism comprises an anti-dropping rod (26), an outer peripheral fixing ring (27), a second connecting spring (28) and a limiting hole (29), the top of the rotating wheel disc (14) is slidably connected with the anti-dropping rod (26), the outer side of the anti-dropping rod (26) is fixed with the outer peripheral fixing ring (27), the top of the outer peripheral fixing ring (27) is fixed with the second connecting spring (28), the top of the second connecting spring (28) is fixed with the rotating wheel disc (14), the outer peripheral fixing ring (27) is sleeved on the outer side of the anti-dropping rod (26), the top of the matching support cavity (1) is provided with two limiting holes (29) corresponding to the position of the anti-dropping rod (26), and the limiting holes (29) are slidably connected with the anti-dropping rod (26).

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