Improved negative pressure machine

Abstract

The utility model discloses an improved negative pressure machine which comprises a base, an electric control cabinet is arranged at the top of the base, an access door is arranged on the electric control cabinet, a side door is arranged on the side of the access door, and the improved negative pressure machine is characterized in that a first rotating shaft used for being rotationally connected with the electric control cabinet is arranged on the side door, and a driven wheel is coaxially arranged at the top of the first rotating shaft; the access door is provided with a second rotating shaft used for being rotationally connected with the electric control cabinet, and the top of the second rotating shaft is coaxially provided with a second gear. A third rotating shaft is further rotationally arranged on the electric control cabinet, a first gear and a driving wheel are coaxially arranged at the top of the third rotating shaft, the first gear is meshed with the second gear, and a belt is arranged between the driving wheel and the driven wheel in a transmission and sleeving mode; a fixing mechanism is also arranged between the access door and the side door; through the device, the side door can be opened along with the access door, the operation convenience is improved, the preparation time before overhaul is shortened, time and labor are saved, and the overhaul efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum negative pressure machines, and in particular relates to an improved negative pressure machine. Background Art

[0002] The vacuum negative pressure unit is composed of a vacuum pump, a PLC control box, a gas storage tank, a gas-water separator and a filter. The medical vacuum negative pressure unit mainly uses negative pressure to suction and remove saliva, blood and sputum from patients in hospital operating rooms, ICUs and inpatient beds to assist medical staff in treating patients. The vacuum negative pressure unit has the characteristics of compact structure, easy installation and strong applicability.

[0003] The existing patent with announcement number CN219228218U is specifically a medical vacuum negative pressure unit with good heat dissipation effect, which is equipped with an electric control cabinet, a side door, an inspection door, a handle, a traction rod, a slider, a through hole, etc. When inspecting, first open the inspection door, and then pull the movable bar upward after the inspection door is fully opened. Under the action of the traction rod, the two sliders approach each other. The two sliders approaching each other will drive the two plug rods to approach each other until the plug rods are completely separated from the through hole on the side door, thereby releasing the limit of the plug rod on the side door, and finally opening the side door to complete the preparation before inspection.

[0004] Before inspecting the electric control cabinet, maintenance personnel need to open the inspection door first, and after the inspection door is fully opened, pull the movable bar upward to release the limit of the side door by the plug rod, and then pull the handle to open the side door to complete the preparation before inspection. However, the side door can only be opened after the inspection door is fully opened and the plug rod releases the limit of the side door. The side door cannot be opened during the opening of the inspection door. The whole operation is not convenient, which increases the workload of maintenance personnel and greatly increases the preparation time before inspection. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an improved negative pressure machine, through which the side door can be opened together with the inspection door, thereby improving the convenience of operation, reducing the preparation time before maintenance, saving time and labor, and improving maintenance efficiency.

[0006] In order to solve this technical problem, the utility model adopts the following technical solutions:

[0007] An improved negative pressure machine comprises a base, an electric control cabinet is arranged on the top of the base, an inspection door is provided on the electric control cabinet, a side door is provided on the side of the inspection door, a first rotating shaft for rotationally connected to the electric control cabinet is provided on the side door, a driven wheel is coaxially provided on the top of the first rotating shaft; a second rotating shaft for rotationally connected to the electric control cabinet is provided on the inspection door, a second gear is coaxially provided on the top of the second rotating shaft; a third rotating shaft is also rotatably provided on the electric control cabinet, a first gear and a driving wheel are coaxially provided on the top of the third rotating shaft, the first gear is meshed with the second gear, a belt is transmitted between the driving wheel and the driven wheel; a fixing mechanism is also provided between the inspection door and the side door.

[0008] Preferably, the fixing mechanism comprises a handle, and a plurality of slide bars are arranged on one side of the handle; a plurality of slide grooves are opened transversely toward the inside of the inspection door on the side surface of the inspection door in the same plane as the side door, and the slide grooves correspond to the slide bars one by one; a limit block is fixed at the inner end of the slide bar, and the limit block is slidably connected with the slide groove, and a limit groove for limiting the limit block is arranged on the inner side of the slide groove; a spring is sleeved on the outer side of the slide bar, and one end of the spring is fixed to the limit block, and the other end is fixed to the inner wall of the slide groove;

[0009] A plurality of card blocks are arranged on the same side of the handle and the slide bar, and a plurality of card slots are opened on the side door, and the card slots correspond to and are plugged with the card blocks one by one.

[0010] Further preferably, the spring is always in a compressed state.

[0011] Further preferably, the plurality of sliding bars are parallel and longitudinally aligned.

[0012] Further preferably, the inspection door is provided with two slide grooves, and the inspection door is also provided with a yield groove between the two slide grooves for facilitating gripping of the handle.

[0013] Further preferably, the inner side of each of the slide grooves is provided with a corresponding limit groove for setting a limit block.

[0014] Further preferably, a clamping block is provided on the upper and lower sides of the handle respectively, and an upper and lower clamping groove corresponding to the clamping block is opened on the side door.

[0015] Preferably, a motor is further provided on the top of the electric control cabinet, and the output shaft of the motor is connected to the third rotating shaft, and the operation of the motor drives the third rotating shaft to rotate.

[0016] Preferably, a vacuum pump and a vacuum tank are also provided on the top of the base, and a connecting pipe is connected between the vacuum pump and the vacuum tank for connecting the vacuum pump and the vacuum tank.

[0017] Further preferably, the vacuum tank is also provided with an external pipe for connecting the vacuum tank with an external device.

[0018] The positive effects of the present utility model are as follows:

[0019] When maintenance personnel open the maintenance door, the side door will be automatically opened, and there is no need to open the side door separately in this operation. On the premise of ensuring sufficient light inside the electric control cabinet, the workload of maintenance personnel and the preparation time before maintenance are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure diagram of Embodiment 1 of the present utility model;

[0021] Figure 2 is the present utility model Figure 1 partial enlarged schematic diagram at A in;

[0022] Figure 3 is the present utility model Figure 1 partial enlarged schematic diagram at B in;

[0023] Figure 4 is the present utility model Figure 1 partial enlarged schematic diagram at C in;

[0024] Figure 5 is the present utility model Figure 1 exploded structure schematic diagram at C in;

[0025] Figure 6 is the present utility model Figure 1 sectional view at C in;

[0026] Figure 7 is the schematic diagram of the opening structure of the side door and the maintenance door of the present utility model;

[0027] Figure 8 is a schematic three-dimensional structure diagram of Embodiment 2 of the present utility model;

[0028] Figure 9 is the present utility model Figure 8 partial enlarged schematic diagram at D in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0030] As Figures 1-7As shown, the technical solution adopted by the utility model is as follows: an improved negative pressure machine, comprising a base 1, a vacuum pump 2, a vacuum tank 4 and an electric control cabinet 6 are fixedly installed on the top of the base 1, wherein a connecting pipe 3 is arranged between the vacuum pump 2 and the vacuum tank 4. An external pipe 5 is arranged on the vacuum tank 4, and the pipe opening of the external pipe 5 not connected to the vacuum tank 4 is used to communicate with an external device (not shown in the figure).

[0031] Two adjacent sides of the electric control cabinet 6 are provided with openings. A first rotating shaft 12 and a second rotating shaft 15 are provided in the electric control cabinet 6 for rotation in the vertical direction. A side door 7 is fixedly provided on the outer surface of the first rotating shaft 12, and an inspection door 8 is fixedly provided on the outer surface of the second rotating shaft 15. The side door 7 and the inspection door 8 are rotated to block the two openings of the electric control cabinet 6.

[0032] The top of the first rotating shaft 12 rotates through the top of the electric control cabinet 6 and is coaxially fixed with a driven wheel 11. The top of the second rotating shaft 15 rotates through the top of the electric control cabinet 6 and is coaxially fixed with a second gear 14. The top of the electric control cabinet 6 rotates the third rotating shaft 16 in the vertical direction, and a driving wheel 17 and a first gear 13 are fixedly sleeved on the outer surface of the third rotating shaft 16. A belt 10 is sleeved between the driving wheel 17 and the driven wheel 11, and the first gear 13 and the second gear 14 are meshed and always kept in meshing state.

[0033] A fixing mechanism is provided between the side door 7 and the inspection door 8, and the fixing mechanism includes a handle 9. A clearance groove 18 and two slide grooves 23 are provided on one side of the inspection door 8, and the two slide grooves 23 are symmetrically arranged about the clearance groove 18. In addition, two limit grooves are provided in the inspection door 8, and the two limit grooves correspond to and are connected with the two slide grooves 23 one by one, and a limit block 25 is slidably provided in each limit groove, and the limit block 25 slides with the corresponding slide groove 23 in a limited manner.

[0034] Two slide bars 20 are fixedly arranged on the handle 9, and the two slide bars 20 correspond to the two slide grooves 23 one by one. The end of each slide bar 20 away from the handle 9 slides through the corresponding slide groove 23 and is fixedly connected to the limit block 25 in the limit groove connected to the corresponding slide groove 23. A spring 21 is sleeved on the outer surface of each slide bar 20, one end of each spring 21 is fixedly connected to the limit block 25 connected to the sleeved slide bar 20, and the other end of each spring 21 is fixedly connected to the inspection door 8.

[0035] Two card slots 22 are provided at the upper and lower parts of the side door 7, and two card blocks 19 are fixedly provided at the upper and lower parts of the handle 9. The two card blocks 19 correspond to the two card slots 22 one by one, and each card block 19 is engaged and matched with the corresponding card slot 22.

[0036] Working principle of Embodiment 1: During use, the vacuum tank 4 is connected to an external device through the external connecting pipe 5. The opening and closing of the vacuum pump 2 are controlled by the electric control cabinet 6, thereby controlling the overall operation of the negative pressure machine. When the vacuum pump 2 is turned on, the inside of the vacuum tank 4 is in a negative pressure environment through the connecting pipe 3. When the vacuum pump 2 is turned off, the air pressure in the vacuum tank 4 is in a normal state.

[0037] When maintenance is required for the electric control cabinet 6, pull the handle 9 outward along the central axis of the sliding rod 20. The handle 9 drives the limiting block 25 to slide synchronously in the limiting groove through the sliding rod 20. During this process, the sliding groove 23 restricts the sliding of the limiting block 25 to prevent the limiting block 25 from detaching from the maintenance door 8. And the spring 21 is always in a compressed state, and the compression deformation amount of the spring 21 gradually increases as the pulling progresses. At the same time, pulling the handle 9 drives the clamping block 19 to slide synchronously in the clamping groove 22, causing the clamping block 19 to gradually disengage from the clamping groove 22. When the clamping block 19 is completely disengaged from the clamping with the clamping groove 22, the fixing between the maintenance door 8 and the side door 7 is released.

[0038] Subsequently, pull the handle 9 to drive the maintenance door 8 to rotate around the central axis of the second rotating shaft 15 in a direction away from the inside of the electric control cabinet 6. The rotation of the maintenance door 8 drives the rotation of the second rotating shaft 15, and the rotation of the second rotating shaft 15 drives the first gear 13 to rotate through the second gear 14. The first gear 13 drives the driving wheel 17 to rotate through the third rotating shaft 16, and the driving wheel 17 drives the driven wheel 11 to rotate through the belt 10, thereby driving the side door 7 to rotate around the central axis of the first rotating shaft 12 in a direction away from the inside of the electric control cabinet 6 through the first rotating shaft 12. Finally, the side door 7 and the maintenance door 8 are opened. Embodiment 2

[0039] Such as Figure 8 and Figure 9 shown, the difference between this Embodiment 2 and Embodiment 1 is that: a motor 24 is fixedly embedded at the top of the electric control cabinet 6, and the output shaft of the motor 24 is fixedly connected to the bottom of the third rotating shaft 16.

[0040] Working principle of Embodiment 2: When maintenance is required for the electric control cabinet 6. Start the motor 24, and the output shaft of the motor 24 drives the third rotating shaft 16 to rotate, and the third rotating shaft 16 drives the first gear 13 and the driving wheel 17 to rotate synchronously.

[0041] The first gear 13 drives the second rotating shaft 15 to rotate through the second gear 14, and the rotation of the second rotating shaft 15 drives the maintenance door 8 to rotate around the central axis of the second rotating shaft 15 in a direction away from the inside of the electric control cabinet 6. The driving wheel 17 drives the driven wheel 11 to rotate through the belt 10, and the driven wheel 11 drives the side door 7 to rotate around the central axis of the first rotating shaft 12 in a direction away from the inside of the electric control cabinet 6 through the first rotating shaft 12. Finally, the side door 7 and the maintenance door 8 are opened.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An improved negative pressure machine, comprising a base (1), an electric control cabinet (6) is provided on the top of the base (1), an inspection door (8) is provided on the electric control cabinet (6), and a side door (7) is provided next to the inspection door (8), characterized in that: The side door (7) is provided with a first rotating shaft (12) for rotationally connecting with the electric control cabinet (6), and a driven wheel (11) is coaxially arranged on the top of the first rotating shaft (12); the inspection door (8) is provided with a second rotating shaft (15) for rotationally connecting with the electric control cabinet (6), and a second gear (14) is coaxially arranged on the top of the second rotating shaft (15); the electric control cabinet (6) is also rotatably provided with a third rotating shaft (16), and a first gear (13) and a driving wheel (17) are coaxially arranged on the top of the third rotating shaft (16), the first gear (13) is meshed with the second gear (14), and a belt (10) is arranged between the driving wheel (17) and the driven wheel (11); a fixing mechanism is also provided between the inspection door (8) and the side door (7).

2. The improved negative pressure machine according to claim 1, characterized in that: The fixing mechanism comprises a handle (9), and a plurality of slide bars (20) are arranged on one side of the handle (9); a plurality of slide grooves (23) are transversely opened on the side surface of the inspection door (8) in the same plane as the side door (7) and facing the inside of the inspection door (8), and the slide grooves (23) correspond to the slide bars (20) one by one; a limit block (25) is fixed on the inner end of the slide bar (20), and the limit block (25) is slidably connected to the slide groove (23), and a limit groove for limiting the limit block (25) is arranged on the inner side of the slide groove (23); a spring (21) is sleeved on the outer side of the slide bar (20), and one end of the spring (21) is fixed to the limit block (25), and the other end is fixed to the inner wall of the slide groove (23); A plurality of card blocks (19) are provided on the handle (9) on the same side as the slide bar (20), and a plurality of card slots (22) are provided on the side door (7), and the card slots (22) correspond to and are plugged into the card blocks (19) one by one.

3. The improved negative pressure machine according to claim 2, characterized in that: The spring (21) is always in a compressed state.

4. The improved negative pressure machine according to claim 2, characterized in that: The plurality of sliding bars (20) are parallel and longitudinally aligned.

5. The improved negative pressure machine according to claim 4, characterized in that: The inspection door (8) is provided with two slide grooves (23), and the inspection door (8) is also provided with a clearance groove (18) between the two slide grooves (23) for facilitating gripping of the handle (9).

6. The improved negative pressure machine according to claim 2, characterized in that: The inner side of each of the slide grooves (23) is provided with a corresponding limit groove for arranging a limit block (25).

7. The improved negative pressure machine according to claim 2, characterized in that: A clamping block (19) is provided on the upper and lower sides of the handle (9), respectively, and two upper and lower clamping grooves (22) corresponding to the clamping blocks (19) are provided on the side door (7).

8. The improved negative pressure machine according to claim 1, characterized in that: A motor (24) is also provided on the top of the electric control cabinet (6); an output shaft of the motor (24) is connected to the third rotating shaft (16); the operation of the motor (24) drives the third rotating shaft (16) to rotate.

9. The improved negative pressure machine according to any one of claims 1 to 8, characterized in that: A vacuum pump (2) and a vacuum tank (4) are also provided on the top of the base (1), and a connecting pipe (3) is connected between the vacuum pump (2) and the vacuum tank (4) for connecting the vacuum pump (2) and the vacuum tank (4).

10. The improved negative pressure machine according to claim 9, characterized in that: The vacuum tank (4) is also provided with an external pipe (5) for connecting the vacuum tank (4) with an external device.

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