Dressing change treatment trolley

Abstract

The invention belongs to the field of dressing change vehicles, and particularly discloses a dressing change treatment vehicle which comprises a moving vehicle, a treading self-locking height adjusting mechanism, a medicine groove basket, a variable dimension type treatment table and a self-disinfection storage bucket. According to the situation that the dressing change treatment vehicle is large in occupied space and inconvenient to store, a spatial dimension change mode is adopted, and the multiple technical effects that the dressing change treatment vehicle is large in occupied space, inconvenient to store and capable of preventing pollution of drugs are effectively achieved through a multiple embedded telescopic movement mode; according to the situation that the height of the dressing change treatment vehicle cannot be adjusted, and the waist pressure of medical staff is increased, the technical effect that the height of the dressing change treatment vehicle is flexibly adjusted is achieved in a stepping self-locking type lifting mode, and the dressing change treatment vehicle is perfectly matched with the medical staff of different heights.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medicine changing trolleys, and particularly relates to a medicine changing treatment trolley. BACKGROUND

[0002] The existing medicine changing trolley occupies a large space and is inconvenient to store and place, and the medicines placed thereon are not shielded and are easily contaminated, which easily causes cross infection, increases the risk of article contamination and patient infection, and the garbage in the medicine changing process cannot be timely disinfected; and the height cannot be adjusted, which increases the waist and back pressure of the operator during the medicine changing process, and increases the probability of waist and back pain and other discomforts of the medical staff. SUMMARY

[0003] In view of the above problems, the medicine changing treatment trolley is provided to overcome the defects of the prior art, and the space dimension change is adopted to effectively solve the problems of large space occupation, inconvenient storage and medicine contamination prevention of the medicine changing treatment trolley; the height adjustment mechanism is adopted to achieve the technical effect of flexible height adjustment of the medicine changing treatment trolley, and the height adjustment mechanism is perfectly suitable for medical staff of different heights.

[0004] The technical scheme adopted by the application is as follows: the medicine changing treatment trolley comprises a mobile trolley, a treading self-locking height adjustment mechanism, a medicine groove basket, a variable dimension treatment table and a self-disinfecting storage barrel, the treading self-locking height adjustment mechanism is arranged on the mobile trolley, the medicine groove basket is arranged on the treading self-locking height adjustment mechanism, the variable dimension treatment table is arranged on the medicine groove basket, and the self-disinfecting storage barrel is arranged on the medicine groove basket; the variable dimension treatment table comprises a contamination prevention limiting guide plate, a contamination prevention supporting plate, a nested guide assembly and a treatment bracket, the contamination prevention limiting guide plate is arranged on the medicine groove basket, the nested guide assembly is arranged on the medicine groove basket, the contamination prevention supporting plate is connected with the nested guide assembly, and the treatment bracket is clamped and slidably arranged on the contamination prevention supporting plate.

[0005] Further, the nested guide assembly comprises a guide frame, a hinged rod, a linkage plate and a pulling rod, the guide frame is arranged on the medicine groove basket, one end of the hinged rod is hinged to the contamination prevention supporting plate, one end of the linkage plate is hinged to the other end of the hinged rod, the hinged rod is provided with four groups, the linkage plate is provided with two groups, the linkage plate is clamped and slidably arranged in the guide frame, and the two linkage plates are connected through the pulling rod.

[0006] As a preferred, the guide frame comprises a fixed frame and a nested frame, the fixed frame is arranged on the medicine groove basket, the fixed frame is provided with a clamping groove, the nested frame is clamped and slidably arranged in the clamping groove, and one end of the nested frame is provided with a baffle.

[0007] Furthermore, the linkage plate has notches at both ends of one side wall, and rollers are provided at the notches. The two rollers have different diameters. One of the rollers with a larger diameter is engaged and rotated in the fixed frame, and the other of the rollers with a smaller diameter is engaged and rotated in the fitting frame.

[0008] The anti-fouling limiting guide plate is provided with an anti-fouling covering limiting groove. The hinge joints of the two hinge rods and the anti-fouling support plate are provided with guide wheels. The guide wheels are movably disposed in the anti-fouling covering limiting groove. The anti-fouling limiting guide plate is provided with a telescopic cavity. The telescopic cavity is provided with a telescopic plate. The upper wall of the telescopic plate is provided with a protruding plate.

[0009] Furthermore, the anti-fouling support plate is provided with a movable groove, and the treatment bracket is engaged and slidably disposed in the movable groove.

[0010] As a further preferred embodiment of the present invention, the self-disinfecting storage bucket includes a fixed support ring, a storage bucket, a rotating cover, and a self-triggered disinfection component. The fixed support ring is disposed on the medicine tray, the storage bucket is disposed on the fixed support ring, the rotating cover is rotatably disposed in the storage bucket, and the self-triggered disinfection component is disposed on the storage bucket.

[0011] Furthermore, the self-triggered disinfection component includes a trigger post, a trigger plate, a return spring, a fixing rod, and a disinfectant spray cylinder. A trigger cavity is provided in the side wall of the storage bucket. One end of the return spring is located at the bottom of the side wall of the trigger cavity. The trigger plate is connected to the other end of the return spring. The trigger post passes through the trigger cavity and is connected to the trigger plate. The trigger post is telescopically movable within the storage bucket. The fixing rod is located on the upper wall of the storage bucket. The disinfectant spray cylinder is located on the fixing rod. A sealing port is provided on the side wall of the disinfectant spray cylinder. The trigger plate telescopically seals within the disinfectant spray cylinder, controlling the release of disinfectant from the spray cylinder.

[0012] The self-locking height adjustment mechanism includes a fixed cylinder, a lifting column, a pedal drive component, and a limiting lock component. The fixed cylinder is mounted on a mobile vehicle, the lifting column is telescopically mounted within the fixed cylinder, the pedal drive component is mounted on the fixed cylinder, and the limiting lock component is mounted on the fixed cylinder. The lifting column has lifting teeth and locking teeth. The pedal drive component includes a pedal fixing plate, a lifting drive clamp, a connecting plate, a linkage rod, a fixed plate frame, and a pedal. The pedal fixing plate is mounted on the side wall of the fixed cylinder, the connecting plate is rotatably mounted on the pedal fixing plate, the lifting drive clamp is hinged to one end of the connecting plate, the side wall of the fixed cylinder has a lifting groove, the lifting drive clamp engages with the lifting teeth through the lifting groove, one end of the linkage rod is hinged to the other end of the connecting plate, the fixed plate frame is mounted on the outer side wall of the fixed cylinder, the pedal is rotatably mounted on the fixed plate frame, the pedal has a linkage groove, the other end of the linkage rod is rotatably mounted in the linkage groove, and a reset counterweight is mounted on the side wall of the pedal.

[0013] Furthermore, the limiting and locking component includes a limiting fixing plate, a locking plate, and a pressure hammer. The limiting fixing plate is disposed on the outer wall of the fixing cylinder, the locking plate is rotatably disposed on the limiting fixing plate, the side wall of the fixing cylinder is provided with a locking groove, the locking plate is engaged with the locking teeth through the locking groove, and the pressure hammer is disposed on the side wall of the locking plate.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: This solution provides a dressing change cart. Addressing the issue of large footprint and inconvenient storage of dressing change carts, a spatial dimension change method is adopted. Through multiple embedded telescopic movement mechanisms, the multiple technical challenges of large footprint, inconvenient storage, and drug contamination prevention are effectively solved. Furthermore, considering the issue of non-adjustable height of the dressing change cart leading to increased lumbar pressure on medical staff, a foot-operated self-locking lifting mechanism is used to achieve flexible height adjustment of the dressing change cart, perfectly adapting to medical staff of different heights. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a dressing change treatment vehicle proposed in this invention; Figure 2 This is a left view of a dressing change treatment cart proposed in this invention; Figure 3 This is a front view of a dressing change treatment vehicle proposed in this invention; Figure 4 This is a schematic diagram of the structure of a variable-dimensional treatment table; Figure 5 This is a schematic diagram of a portion of the structure of a variable-dimensional treatment table. Figure 6 This is a schematic diagram of the guide frame structure; Figure 7 This is a structural diagram of the anti-fouling support plate; Figure 8 A schematic diagram of the anti-fouling limiting guide plate; Figure 9 This is a structural diagram of a self-disinfecting storage bucket; Figure 10 A cross-sectional view of a self-sterilizing storage container; Figure 11 This is a schematic diagram of a self-locking height adjustment mechanism.

[0016] The components include: 1. Mobile cart; 2. Step-locking height adjustment mechanism; 3. Medicine basket; 4. Variable-dimensional treatment table; 5. Self-disinfecting storage bin; 6. Anti-fouling limiting guide plate; 7. Anti-fouling support plate; 8. Interlocking guide assembly; 9. Treatment bracket; 10. Guide frame; 11. Hinge rod; 12. Linkage plate; 13. Pull rod; 14. Fixed frame; 15. Interlocking frame; 16. Engaging groove; 17. Baffle; 18. Notch; 19. Roller; 20. Anti-fouling covering limiting groove; 21. Guide wheel; 22. Telescopic cavity; 23. Telescopic plate; 24. Protruding plate; 25. Moving groove; 26. Fixed support ring; 27. Storage bin; 28. 29. Rotating cover, 30. Self-triggered disinfection component, 31. Trigger column, 32. Trigger plate, 33. Return spring, 34. Fixing rod, 35. Disinfectant spray cylinder, 36. Trigger chamber, 37. Sealing port, 38. Fixing cylinder, 39. Lifting column, 40. Step-on drive component, 41. Limit locking component, 42. Lifting tooth, 43. Locking tooth, 44. Step-on fixing plate, 45. Lifting drive clamp, 46. Connecting plate, 47. Linkage rod, 48. Fixing plate frame, 49. Step pedal, 50. Lifting groove, 51. Linkage groove, 52. Return weight, 53. Limit fixing plate, 54. Locking clamp, 55. Pressure hammer, 56. Locking groove.

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] like Figure 1 As shown, the present invention provides a dressing change treatment cart, including a mobile cart 1, a foot-operated self-locking height adjustment mechanism 2, a medicine basket 3, a variable-dimensional treatment table 4, and a self-disinfecting storage bucket 5. The foot-operated self-locking height adjustment mechanism 2 is mounted on the mobile cart 1, the medicine basket 3 is mounted on the foot-operated self-locking height adjustment mechanism 2, the variable-dimensional treatment table 4 is mounted on the medicine basket 3, and the self-disinfecting storage bucket 5 is mounted on the medicine basket 3.

[0021] like Figure 1 , Figure 2 , Figure 11 As shown, the self-locking height adjustment mechanism 2 includes a fixed cylinder 37, a lifting column 38, a pedal drive component 39, and a limiting lock component 40. The fixed cylinder 37 is mounted on the mobile vehicle 1. The lifting column 38 is telescopically mounted within the fixed cylinder 37. The pedal drive component 39 is mounted on the fixed cylinder 37, and the limiting lock component 40 is mounted on the fixed cylinder 37. The lifting column 38 is provided with lifting teeth 41 and locking teeth 42. The pedal drive component 39 includes a pedal fixing plate 43, a lifting drive clamp 44, a connecting plate 45, a linkage rod 46, a fixing plate frame 47, and a pedal 48. The pedal fixing plate 43 is mounted on the side wall of the fixed cylinder 37. The connecting plate 45 is rotatably mounted on the pedal fixing plate 43. The lifting drive clamp 44 is hinged to one end of the connecting plate 45. The side wall of the fixed cylinder 37 is provided with a lifting groove 49. The drive clamp 44 is engaged with the lifting tooth 41 through the lifting groove 49. One end of the linkage rod 46 is hinged to the other end of the connecting plate 45. The fixed plate frame 47 is located on the outer wall of the fixed cylinder 37. The pedal 48 is rotatably mounted on the fixed plate frame 47. The pedal 48 is provided with a linkage groove 50. The other end of the linkage rod 46 is rotatably mounted in the linkage groove 50. The side wall of the pedal 48 is provided with a reset hammer 51. The limiting locking component 40 includes a limiting fixing plate 52, a locking plate 53, and a pressure hammer 54. The limiting fixing plate 52 is located on the outer wall of the fixed cylinder 37. The locking plate 53 is rotatably mounted on the limiting fixing plate 52. The side wall of the fixed cylinder 37 is provided with a locking groove 55. The locking plate 53 is engaged with the locking tooth 42 through the locking groove 55. The pressure hammer 54 is located on the side wall of the locking plate 53.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 ,Figure 6 , Figure 7 , Figure 8 As shown, the variable-dimensional treatment table 4 includes a contamination-proof limiting guide plate 6, a contamination-proof support plate 7, a fitting guide assembly 8, and a treatment bracket 9. The contamination-proof limiting guide plate 6 is mounted on the medicine basket 3, the fitting guide assembly 8 is mounted on the medicine basket 3, the contamination-proof support plate 7 is connected to the fitting guide assembly 8, and the treatment bracket 9 is engaged and slidably mounted on the contamination-proof support plate 7. The fitting guide assembly 8 includes a guide frame 10, a hinge rod 11, a linkage plate 12, and a pull rod 13. The guide frame 10 is mounted on the medicine basket 3. One end of the hinge rod 11 is hinged to the contamination-proof support plate 7, and one end of the linkage plate 12 is hinged to the other end of the hinge rod 11. There are four sets of hinge rods 11 and two sets of linkage plates 12. The linkage plates 12 are engaged and slidably mounted in the guide frame 10, and the two linkage plates 12 are connected by the pull rod 13. The guide frame 10 includes a fixed frame 14 and a fitting frame 15. The fixed frame 14 is mounted on the medicine basket 3. The fixed frame 14 has a locking groove 16, and the fitting frame 15 is slidably engaged in the locking groove 16. One end of the fitting frame 15 has a baffle 17. The two ends of one side wall of the linkage plate 12 have notches 18, and rollers 19 are provided at the notches 18. The two rollers 19 have different diameters. One roller 19 with a larger diameter is engaged and rotated in the fixed frame 14, and the other roller 19 with a smaller diameter is engaged and rotated in the fitting frame 15. The anti-fouling limiting guide plate 6 has an anti-fouling covering limiting groove 20. The hinge of the two hinge rods 11 and the anti-fouling support plate 7 has a guide wheel 21. The guide wheel 21 is movably disposed in the anti-fouling covering limiting groove 20. The anti-fouling limiting guide plate 6 has a telescopic cavity 22. The telescopic cavity 22 has a telescopic plate 23. The upper wall of the telescopic plate 23 has a protruding plate 24. The anti-fouling support plate 7 has a moving groove 25, and the treatment bracket 9 is engaged and slidably disposed in the moving groove 25.

[0023] like Figure 1 , Figure 7 , Figure 9 , Figure 10As shown, the self-disinfecting storage bucket 5 includes a fixed support ring 26, a storage bucket 27, a rotating cover 28, and a self-triggered disinfection component 29. The fixed support ring 26 is mounted on the medicine basket 3, the storage bucket 27 is mounted on the fixed support ring 26, the rotating cover 28 is rotatably mounted in the storage bucket 27, and the self-triggered disinfection component 29 is mounted on the storage bucket 27. The self-triggered disinfection component 29 includes a trigger post 30, a trigger plate 31, a return spring 32, a fixing rod 33, and a disinfectant spray nozzle 34. A trigger cavity 35 is provided in the side wall of the storage bucket 27 for resetting... One end of the spring 32 is located at the bottom of the side wall of the trigger chamber 35. The trigger plate 31 is connected to the other end of the reset spring 32. The trigger post 30 passes through the trigger chamber 35 and is connected to the trigger plate 31. The trigger post 30 is telescopically movably located in the storage bucket 27. The fixing rod 33 is located on the upper wall of the storage bucket 27. The disinfectant spraying cylinder 34 is located on the fixing rod 33. The side wall of the disinfectant spraying cylinder 34 is provided with a sealing port 36. The trigger plate 31 telescopically seals the disinfectant spraying cylinder 34 to control the release of disinfectant in the disinfectant spraying cylinder 34.

[0024] In practical use, the medicines and tools used for treatment are placed in the medicine tray 3. Initially, the anti-fouling support plate 7 covers the medicine tray 3, effectively preventing contamination of the medicines and tools. When it is necessary to change the dressing for the patient, the medical staff can step on the pedal 48 according to their own height. The pedal 48 rotates, causing the linkage rod 46 to rotate and move downward. The movement of the linkage rod 46 causes the connecting plate 45 to move. The movement of the connecting plate 45 causes the lifting drive latch 44 to move. The lifting drive latch 44 pushes the lifting gear 41 to move upward. The upward movement of the lifting gear 41 causes the lifting column 38 to move upward. At this time, the locking plate 53 slightly rotates and disengages from the locking as the lifting column 38 moves upward. When the foot pedal 48 is released, the foot pedal 48 resets under the action of the reset hammer 51. At this time, the locking plate 53, under the action of the pressure hammer 54, locks the locking tooth 42, preventing the lifting column 38 from sliding down. This achieves the technical effect of flexible height adjustment of the dressing change treatment cart, and can perfectly match medical staff of different heights, reducing the pressure on the lower back of medical staff. After the height adjustment is completed, push the pull rod 13. The pull rod 13 pushes the linkage plate 12 and moves along the guide frame 10 through the roller 19. The small diameter roller 19 pushes the baffle 17 to move. The movement of the baffle 17 drives the fitting frame 15 to move along the fixed frame 14. The large diameter roller... 19 moves along the fixed frame 14, the linkage plate 12 moves, driving the hinge rod 11 to move, the hinge rod 11 moves, driving the guide wheel 21 to move, the guide wheel 21 gradually moves out of the anti-fouling cover limiting groove 20, and pushes the convex plate 24 to move, the convex plate 24 moves, driving the telescopic plate 23 to move along the telescopic cavity 22, and then driving the anti-fouling support plate 7 to move out from above the medicine basket 3, so that the treatment bracket 9 can move along the moving groove 25 for further adjustment of the dressing change position. Dressing treatment is performed through the treatment bracket 9. Through the dimensional change of spatial connection, the technical effect of saving the space occupied by the dressing treatment cart is achieved. The replaced medicines can be immediately thrown into the storage bin 27. In the initial state, the rotating cover 28 is horizontal. When the replaced medicine falls onto the rotating cover 28, the rotating cover 28 is pressed and rotates, opening the storage bucket 27. At the same time, the rotating cover 28 presses the trigger pin 30 into the trigger cavity 35. The movement of the trigger pin 30 drives the trigger plate 31 to move. At this time, the reset spring 32 contracts, and the trigger plate 31 moves away from the disinfectant spraying cylinder 34 through the sealing port 36. At this time, the disinfectant in the disinfectant spraying cylinder 34 is sprayed out, automatically disinfecting the replaced medicine and effectively preventing cross-infection. After disinfection, the structure can be reset. The above is the specific working process of this invention. This step can be repeated for the next use.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the foregoing and its equivalents.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dressing change treatment cart, characterized in that: The device includes a mobile cart (1), a foot-operated self-locking height adjustment mechanism (2), a medicine basket (3), a variable-dimensional treatment table (4), and a self-disinfecting storage bucket (5). The foot-operated self-locking height adjustment mechanism (2) is located on the mobile cart (1), the medicine basket (3) is located on the foot-operated self-locking height adjustment mechanism (2), the variable-dimensional treatment table (4) is located on the medicine basket (3), and the self-disinfecting storage bucket (5) is located on the medicine basket (3). The variable-dimensional treatment table (4) includes a contamination-proof limiting guide plate (6), a contamination-proof support plate (7), a fitting guide component (8), and a treatment bracket (9). The contamination-proof limiting guide plate (6) is located on the medicine basket (3), the fitting guide component (8) is located on the medicine basket (3), the contamination-proof support plate (7) is connected to the fitting guide component (8), and the treatment bracket (9) is engaged and slidably located on the contamination-proof support plate (7).

2. The dressing change treatment cart according to claim 1, characterized in that: The interlocking guide assembly (8) includes a guide frame (10), a hinge rod (11), a linkage plate (12), and a pull rod (13). The guide frame (10) is mounted on the medicine trough basket (3). One end of the hinge rod (11) is hinged to the anti-fouling support plate (7). One end of the linkage plate (12) is hinged to the other end of the hinge rod (11). There are four sets of hinge rods (11) and two sets of linkage plates (12). The linkage plates (12) are engaged and slidably mounted in the guide frame (10). The two linkage plates (12) are connected by the pull rod (13).

3. The dressing change treatment cart according to claim 2, characterized in that: The guide frame (10) includes a fixed frame (14) and a fitting frame (15). The fixed frame (14) is located on the medicine basket (3). The fixed frame (14) has a locking groove (16). The fitting frame (15) is slidably fitted in the locking groove (16). One end of the fitting frame (15) has a baffle (17).

4. The dressing change treatment cart according to claim 3, characterized in that: The linkage plate (12) has notches (18) at both ends of one side wall, and rollers (19) are provided at the notches (18). The two rollers (19) have different diameters. One of the rollers (19) with a larger diameter is engaged and rotated in the fixed frame (14), and the other of the rollers (19) with a smaller diameter is engaged and rotated in the fitting frame (15).

5. The dressing change treatment cart according to claim 4, characterized in that: The anti-fouling limiting guide plate (6) is provided with an anti-fouling covering limiting groove (20), wherein the hinge joints of the two hinge rods (11) and the anti-fouling support plate (7) are provided with guide wheels (21), the guide wheels (21) are movably disposed in the anti-fouling covering limiting groove (20), the anti-fouling limiting guide plate (6) is provided with a telescopic cavity (22), the telescopic cavity (22) is provided with a telescopic plate (23), and the upper wall of the telescopic plate (23) is provided with a protruding plate (24).

6. The dressing change treatment cart according to claim 5, characterized in that: The anti-fouling support plate (7) is provided with a movable groove (25), and the treatment bracket (9) is engaged and slidably disposed in the movable groove (25).

7. A dressing change treatment cart according to claim 6, characterized in that: The self-disinfecting storage bin (5) includes a fixed support ring (26), a storage bin (27), a rotating cover (28), and a self-triggered disinfection component (29). The fixed support ring (26) is located on the medicine basket (3), the storage bin (27) is located on the fixed support ring (26), the rotating cover (28) is rotatably located in the storage bin (27), and the self-triggered disinfection component (29) is located on the storage bin (27).

8. A dressing change treatment cart according to claim 7, characterized in that: The self-triggered disinfection component (29) includes a trigger post (30), a trigger plate (31), a reset spring (32), a fixing rod (33), and a disinfectant spraying cylinder (34). The storage bucket (27) has a trigger cavity (35) in its side wall. One end of the reset spring (32) is located at the bottom of the side wall of the trigger cavity (35). The trigger plate (31) is connected to the other end of the reset spring (32). The trigger post (30) passes through the trigger cavity (35) and is connected to the trigger plate (31). The trigger post (30) is telescopically movable in the storage bucket (27). The fixing rod (33) is located on the upper wall of the storage bucket (27). The disinfectant spraying cylinder (34) is located on the fixing rod (33). The side wall of the disinfectant spraying cylinder (34) has a sealing port (36). The trigger plate (31) telescopically seals the disinfectant spraying cylinder (34).

9. A dressing change treatment cart according to claim 8, characterized in that: The self-locking height adjustment mechanism (2) includes a fixed cylinder (37), a lifting column (38), a pedal drive component (39), and a limiting locking component (40). The fixed cylinder (37) is mounted on the mobile vehicle (1). The lifting column (38) is telescopically mounted in the fixed cylinder (37). The pedal drive component (39) is mounted on the fixed cylinder (37). The limiting locking component (40) is mounted on the fixed cylinder (37). The lifting column (38) is provided with lifting teeth (41) and locking teeth (42). The pedal drive component (39) includes a pedal fixing plate (43), a lifting drive clamp (44), a connecting plate (45), a linkage rod (46), a fixing plate frame (47), and a pedal (48). The pedal fixing plate (43) is mounted on the fixed cylinder (37). On the side wall, the connecting plate (45) is rotatably mounted on the foot pedal fixing plate (43). The lifting drive clamp (44) is hinged to one end of the connecting plate (45). The side wall of the fixing cylinder (37) is provided with a lifting groove (49). The lifting drive clamp (44) is engaged with the lifting tooth (41) through the lifting groove (49). One end of the linkage rod (46) is hinged to the other end of the connecting plate (45). The fixing plate frame (47) is mounted on the outer side wall of the fixing cylinder (37). The foot pedal (48) is rotatably mounted on the fixing plate frame (47). The foot pedal (48) is provided with a linkage groove (50). The other end of the linkage rod (46) is rotatably mounted in the linkage groove (50). The side wall of the foot pedal (48) is provided with a reset weight (51).

10. A dressing change treatment cart according to claim 9, characterized in that: The limiting locking component (40) includes a limiting fixing plate (52), a locking plate (53), and a pressure hammer (54). The limiting fixing plate (52) is located on the outer wall of the fixing cylinder (37). The locking plate (53) is rotatably located on the limiting fixing plate (52). The side wall of the fixing cylinder (37) is provided with a locking groove (55). The locking plate (53) is engaged with the locking teeth (42) through the locking groove (55). The pressure hammer (54) is located on the side wall of the locking plate (53).

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