Infusion pump automatic door opening mechanism

Abstract

The utility model discloses an automatic door opening mechanism for an infusion pump, comprising a housing, the outer side of the housing is connected to a door front housing through a connecting shaft, and a door rear housing is fixedly installed on the inner side of the door front housing, and a door hook is fixedly installed on the outer side of the door rear housing, a fixed bracket is also fixedly installed on the inner side of the housing, and a door opening motor is fixedly installed on the inner side of the fixed bracket, and a gear is fixedly connected to the output end of the door opening motor, a door buckle travel bar is also slidably connected to the inner side of the housing, and a fixing piece is fixedly installed on one side end of the door buckle travel bar, and a door switch screw is rotatably installed on the fixing piece, and a rack is threadedly connected to the outer side of the door switch screw. The automatic door opening mechanism for an infusion pump can open the door automatically, and the door body can be buffered and rotated during the door opening process to avoid collision, and manual control can also be used to reduce the operation failure rate.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion pumps, in particular to an automatic door opening mechanism for an infusion pump. Background Art

[0002] Traditional infusion pumps need to be opened manually, and the pump door needs to be held by hand after opening, otherwise the pump door will directly hit the desktop. This way of opening the door is relatively noisy, and because the pump door and screen are designed independently, the pump door occupies a certain space, so the traditional infusion pump screen is small, the overall visual effect is poor, and the waterproof level is not high (IP34). In order to improve the user experience, an integrated touch screen pump door is made to achieve easy door opening.

[0003] In the prior art, there is a novel infusion pump hatch switch mechanism with publication number CN208073195U, which includes a front cover, a decorative plate, and a rear cover. A hook fixing plate is provided in the front cover, a positioning pin is provided on the hook fixing plate, a sliding groove is provided on the hook plate, the positioning pin matches the inner side of the sliding groove, a spring is provided between the rear of the hook plate and the hook fixing plate, two hooks parallel to each other are provided on the hook plate, which match the door panel fixing shaft provided on the rear cover, the end of the toggle switch is connected to the hook plate through a connecting shaft, and the middle section of the toggle switch is provided with a toggle switch rotating shaft fixed on the front cover. The hatch switch can be arranged parallel to the infusion direction of the infusion pump, providing space for the design of the control panel, easy for users to operate and highly reliable, but it cannot realize automatic door opening when in use, and the door body after opening is prone to hit foreign objects due to gravity during the rotation process, which has certain use defects. Utility Model Content

[0004] The utility model aims to provide an automatic door opening mechanism for an infusion pump, so as to solve the problem that the infusion pumps on the market currently have difficulty in automatically opening their doors, as mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic door opening mechanism of an infusion pump, comprising a shell, the outer side of the shell is connected to a door front shell through a connecting shaft, and the inner side of the door front shell is fixedly installed with a door rear shell, and the outer side of the door rear shell is fixedly installed with a door hook, the inner side of the shell is also fixedly installed with a fixed bracket, and the inner side of the fixed bracket is fixedly installed with a door opening motor, and the output end of the door opening motor is fixedly connected with a gear, the inner side of the shell is also slidably connected with a door buckle travel bar, and one side end of the door buckle travel bar is fixedly installed with a fixing piece, and a door opening and closing screw is rotatably installed on the fixing piece, and the outer side of the door opening and closing screw is threadedly connected with a rack.

[0006] Preferably, the door front shell is rotatably connected to the shell body via a connecting shaft, and the connecting shaft is a damping shaft, and the rotation angle of the door front shell is 78°.

[0007] By adopting the above technical solution, the door front shell can effectively slow down the inertia of opening the door when opening and closing, thereby preventing the door from rebounding due to gravity after opening the door.

[0008] Preferably, the door hooks are evenly arranged on the inner side of the door rear shell, and the door buckle travel bar is evenly provided with card slots, and the positions of the card slots and the door hooks are correspondingly arranged, and the card slots and the door hooks constitute a card-engaging limiting structure.

[0009] By adopting the above technical solution, when the rear shell of the door is rotated and closed, the door hook will engage with the card slot, thereby locking the device door.

[0010] Preferably, the gear and the rack are meshingly connected, and the rack and the door buckle travel bar are arranged in parallel.

[0011] By adopting the above technical solution, the door opening motor is started, thereby driving the gear and rack to engage and connect, so that the rack drives the door buckle travel bar to adjust and move synchronously, thereby releasing the limit on the door hook and realizing automatic door opening.

[0012] Preferably, the door-opening and closing screw and the rack are threadedly connected, and the screw head end of the door-opening and closing screw passes through the shell.

[0013] By adopting the above technical solution, the user can rotate the door opening and closing screw so that the door opening and closing screw is screwed into the rack under the action of the threaded connection, thereby driving the door buckle travel bar to move and realize manual door opening.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the automatic door opening mechanism of the infusion pump can open the door automatically, and the door body can be buffered and rotated during the door opening process to avoid collision. At the same time, manual control can be adopted to reduce the operation failure rate. The specific contents are as follows:

[0015] 1. A connecting shaft, a door opening motor and a door buckle travel bar are provided. When the door opening motor is started, the door opening motor drives the gear to rotate, and the gear drives the rack to move through meshing. At the same time, the rack drives the door buckle travel bar to slide and adjust synchronously, so that the card slot and door hook on the door buckle travel bar are disengaged, so that the door body rotates and opens automatically, and the connecting shaft can play a buffering role to avoid collision when the door body rotates;

[0016] 2. A door opening and closing screw and a rack are provided. When the door needs to be opened manually, a tool is used to rotate the door opening and closing screw at the same time, so that the door opening and closing screw is screwed in the direction of the rack, thereby driving the door buckle travel bar to move synchronously through the fixing part, and then the card slot on the door buckle travel bar is disengaged from the door hook, realizing convenient manual door opening and reducing the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the front door shell and the rear door shell of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the door buckle travel bar of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the door buckle travel bar and the rack of the utility model;

[0021] Figure 5 It is a schematic diagram of the split structure of the door buckle travel bar and rack of the utility model.

[0022] In the figure: 1. Shell; 2. Connecting shaft; 3. Door front shell; 4. Door rear shell; 5. Door hook; 6. Fixed bracket; 7. Door opening motor; 8. Gear; 9. Door buckle travel bar; 901, Slot; 10. Fixing piece; 11. Door opening and closing screw; 12. Rack. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: an automatic door opening mechanism of an infusion pump, comprising a shell 1, the outer side of the shell 1 is connected with a door front shell 3 through a connecting shaft 2, and the inner side of the door front shell 3 is fixedly installed with a door rear shell 4, and the outer side of the door rear shell 4 is fixedly installed with a door hook 5, the inner side of the shell 1 is also fixedly installed with a fixing bracket 6, and the inner side of the fixing bracket 6 is fixedly installed with a door opening motor 7, and the output end of the door opening motor 7 is fixedly connected with a gear 8, the inner side of the shell 1 is also slidably connected with a door buckle travel bar 9, and one side end of the door buckle travel bar 9 is fixedly installed with a fixing piece 10, and a door opening and closing screw 11 is rotatably installed on the fixing piece 10, and the outer side of the door opening and closing screw 11 is threadedly connected with a rack 12.

[0025] The front shell 3 is rotatably connected to the housing 1 through the connecting shaft 2, and the connecting shaft 2 is a damping shaft, and the rotation angle of the front shell 3 is 78°. The door hook 5 is evenly arranged on the inner side of the rear shell 4, and the door buckle travel bar 9 is evenly provided with a card slot 901, and the position of the card slot 901 and the door hook 5 is correspondingly arranged, and the card slot 901 and the door hook 5 constitute a card-engaging limit structure. The gear 8 is meshed with the rack 12, and the rack 12 and the door buckle travel bar 9 are arranged in parallel.

[0026] like Figure 1-Figure 5 As shown, when it is necessary to open the door, the door opening motor 7 is started, so that the door opening motor 7 drives the gear 8 at its output end to rotate, so that the gear 8 and the rack 12 mesh, thereby driving the rack 12 to slide. At this time, the rack 12 will drive the door buckle travel bar 9 to slide through the fixing part 10 and the door opening and closing screw 11, thereby causing the door hook 5 and the door buckle travel bar 9 to disengage. At this time, the door front shell 3 and the door rear shell 4 will rotate and open under the elastic force of the pressure head spring, and the connecting shaft 2 adopts a damping shaft structure, which can buffer the door front shell 3 and the door rear shell 4, and can effectively slow down the inertia of opening the door to prevent the door from rebounding due to gravity after opening the door. At the same time, it also increases the product life and improves the user experience. Then, when it is necessary to close the door, the door front shell 3 and the door rear shell 4 are rotated to reset, and then the door opening motor 7 is controlled to drive the gear 8 to reverse, thereby driving the door buckle travel bar 9 to reset, so that the door buckle travel bar 9 and the door hook 5 are engaged again.

[0027] The door-opening screw rod 11 and the rack 12 are threadedly connected, and the screw head end of the door-opening screw rod 11 passes through the housing 1. Figure 3-Figure 5 As shown, when the door needs to be opened manually, a tool is used to rotate the door-opening screw 11 so that the door-opening screw 11 and the rack 12 are threadedly connected. At this time, the door-opening screw 11 will be screwed in the direction of the rack 12, so that the door-opening screw 11 drives the door buckle travel bar 9 to move and adjust through the fixing part 10, thereby releasing the limit of the door hook 5 and the slot 901, and the front door shell 3 and the rear door shell 4 can be opened automatically.

[0028] In summary, when using the automatic door opening mechanism of the infusion pump, first Figure 1-Figure 5 As shown, when the door needs to be opened, the door opening motor 7 is started, so that it can adjust the position of the door buckle travel bar 9 through the transmission action of the gear 8 and the rack 12, release the limit of the door buckle travel bar 9 and the door hook 5, so that the door front shell 3 and the door rear shell 4 can rotate bufferingly to complete the automatic door opening. When the door needs to be opened manually, the tool is used to rotate the door opening and closing screw 11. At this time, the door opening and closing screw 11 will drive the door buckle travel bar 9 to move, thereby completing the limit release of the door buckle travel bar 9 and the door hook 5, thereby completing the manual door opening.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic door opening mechanism for an infusion pump, comprising a housing (1), the outer side of the housing (1) being connected to a door front housing (3) via a connecting shaft (2), a door rear housing (4) being fixedly mounted on the inner side of the door front housing (3), and a door hook (5) being fixedly mounted on the outer side of the door rear housing (4), characterized in that: A fixing bracket (6) is fixedly mounted on the inner side of the shell (1), and a door opening motor (7) is fixedly mounted on the inner side of the fixing bracket (6), and a gear (8) is fixedly connected to the output end of the door opening motor (7), and a door catch travel bar (9) is slidably connected to the inner side of the shell (1), and a fixing piece (10) is fixedly mounted on one end of the door catch travel bar (9), and a door opening and closing screw rod (11) is rotatably mounted on the fixing piece (10), and a rack (12) is threadedly connected to the outer side of the door opening and closing screw rod (11).

2. The automatic door opening mechanism of the infusion pump according to claim 1, characterized in that: The door front shell (3) is rotatably connected to the housing (1) via a connecting shaft (2), the connecting shaft (2) is a damping shaft, and the rotation angle of the door front shell (3) is 78°.

3. The automatic door opening mechanism of the infusion pump according to claim 1, characterized in that: The door hooks (5) are evenly arranged on the inner side of the door rear shell (4), and the door buckle travel bar (9) is evenly provided with card slots (901), and the positions of the card slots (901) and the door hooks (5) are correspondingly arranged, and the card slots (901) and the door hooks (5) constitute a card-engaging limiting structure.

4. The automatic door opening mechanism of the infusion pump according to claim 1, characterized in that: The gear (8) and the rack (12) are meshed and connected, and the rack (12) and the door buckle travel bar (9) are arranged in parallel.

5. The automatic door opening mechanism of the infusion pump according to claim 1, characterized in that: The door-opening and closing screw rod (11) and the rack (12) are threadedly connected, and the screw head end of the door-opening and closing screw rod (11) passes through the housing (1).

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