Infusion pump front shell assembly and infusion equipment

Abstract

The utility model discloses an infusion pump front shell assembly which comprises an inner panel and a door assembly installed in front of the inner panel, the door assembly comprises a door plate, a self-locking hook, a reset piece and a key, the self-locking hook is installed behind the door plate, a self-locking shaft is arranged at the corresponding position of the front face of the inner panel, the reset piece pushes the self-locking hook to get close to and hook the self-locking shaft, and the key is embedded into the door plate. The rear end face of the key is provided with a first slope, the front end face of the self-locking hook is provided with a matched second slope, and the key is pressed to push the self-locking hook to be separated from and away from the self-locking shaft. When the door is closed, the self-locking hook is hooked with the self-locking shaft under the assistance of the reset piece to lock the door assembly, and when the door is opened, the key is pressed down, the self-locking hook is pushed to be separated from the self-locking shaft through the two inclined plane structures, and the door assembly is unlocked. Locking and unlocking of the door assembly are achieved through the key, the self-locking hook and the self-locking shaft, the structure is simple, cost is low, occupied space is saved, and maintenance is convenient and fast. The utility model further discloses infusion equipment comprising the infusion pump front shell assembly.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an infusion pump front housing assembly. Furthermore, this utility model also relates to an infusion device including the aforementioned infusion pump front housing assembly. Background Technology

[0002] An infusion pump is an instrument that can accurately control the number of infusion drops or the infusion flow rate, ensuring that the medication can enter the patient's body at a uniform speed, with accurate dosage and safe delivery. It is also an intelligent infusion device, where the infusion rate is not affected by the patient's back pressure or the operator's actions. The infusion is accurate and reliable, which helps reduce the intensity of clinical nursing work and improves the accuracy, safety, and quality of care.

[0003] The infusion pump has a front housing assembly. An operating interface is located at one end of the front housing assembly, and an inner panel is located at the other end. A door assembly is located in front of the inner panel, and the inner panel is opened and closed by opening and closing the door assembly. In existing technologies, the opening and closing structure of the door assembly mostly uses a lever handle or gear transmission. The lever handle method uses the lever principle; the longer the handle, the less effort required. This method requires a compromise in handle length—as short as possible without making the door too difficult to open and close—and even then, it still takes up a lot of space. The gear transmission method uses a drive component connected to a moving gear to transmit force to the door opening and closing mechanism, causing it to lock or unlock, thus closing or opening the door. This gear transmission method is structurally complex, costly to manufacture, and inconvenient for subsequent maintenance.

[0004] Therefore, how to provide a simple and space-saving infusion pump front housing assembly is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an infusion pump front housing assembly that uses a self-locking hook and a self-locking shaft to open and lock the door assembly, resulting in a simple structure and space-saving design. Another purpose of this invention is to provide an infusion device including the aforementioned infusion pump front housing assembly.

[0006] To solve the above-mentioned technical problems, this utility model provides an infusion pump front housing assembly, including an inner panel and a door assembly installed in front of the inner panel. The door assembly includes a door panel, a self-locking hook, a reset member, and a button. The self-locking hook is installed behind the door panel, and a self-locking shaft is provided at a corresponding position on the front of the inner panel. The reset member pushes the self-locking hook closer to and hooks the self-locking shaft. The button is embedded in the door panel. The rear end face of the button is provided with a first inclined surface, and the front end face of the self-locking hook is provided with a matching second inclined surface. Pressing the button pushes the self-locking hook to disengage and move away from the self-locking shaft.

[0007] Preferably, the door panel is provided with a sliding groove, the extension direction of the sliding groove is parallel to the door panel, the extension direction of the self-locking shaft is parallel to the inner panel, and the extension direction of the sliding groove is perpendicular to the extension direction of the self-locking shaft, and the self-locking hook can move linearly along the sliding groove.

[0008] Preferably, a groove is provided in the middle of the forward side of the self-locking hook, and the self-locking shaft can be inserted into the groove. A guide slope is provided at the rear end of the forward side of the self-locking hook, and the second slope is inclined to the forward side of the self-locking hook. Pressing the case pushes the self-locking hook to move to the backward side.

[0009] Preferably, the key includes a keycap and a key post mounted on the rear end of the keycap, the first inclined surface is disposed on the rear end face of the key post, and the first inclined surface is inclined toward the retracting side of the self-locking hook.

[0010] Preferably, the reset component includes a mounting base and a reset spring. The mounting base is fixedly installed on the back of the door panel. The mounting base has a mounting groove on the side facing the self-locking hook. One end of the reset spring is inserted into the mounting groove, and the other end of the reset spring abuts against the retracting side of the self-locking hook to push the self-locking hook to move forward.

[0011] Preferably, the inner panel is hinged to one side of the door panel via a door hinge.

[0012] Preferably, an automatic door opening mechanism is installed behind the door panel. After the self-locking hook disengages from the self-locking shaft, the automatic door opening mechanism pushes the door panel away from the inner panel.

[0013] Preferably, the automatic door opening mechanism includes a guide plate and a buffer spring, one end of the buffer spring is installed in the limiting groove behind the door panel, and the other end of the buffer spring abuts against the front of the guide plate.

[0014] Preferably, a guide post is provided behind the door panel, the guide post is inserted into a guide hole on the door panel, and the guide plate is connected to the back of the door panel by equal-height screws.

[0015] This utility model provides an infusion device, including the infusion pump front housing assembly as described in any one of the above.

[0016] This utility model provides a front housing assembly for an infusion pump, including an inner panel and a door assembly installed in front of the inner panel. The door assembly includes a door panel, a self-locking hook, a reset member, and a button. The self-locking hook is installed behind the door panel, and a self-locking shaft is provided at a corresponding position on the front of the inner panel. The reset member pushes the self-locking hook closer to and hooks the self-locking shaft. The button is embedded in the door panel. A first inclined surface is provided on the rear end face of the button, and a matching second inclined surface is provided on the front end face of the self-locking hook. Pressing the button pushes the self-locking hook to disengage and move away from the self-locking shaft.

[0017] When closing the door, the door panel approaches the inner panel, causing the self-locking hook to approach the self-locking shaft. After the door panel is fully closed, the self-locking hook engages the self-locking shaft with the assistance of the reset component, locking the door assembly. When opening the door, pressing the button pushes the self-locking hook away from the self-locking shaft through two inclined structures, unlocking the door assembly. This locking and unlocking mechanism, using a button, self-locking hook, and self-locking shaft, is simple in structure, low in cost, space-saving, and convenient and quick to maintain.

[0018] This utility model also provides an infusion device including the above-mentioned infusion pump front housing assembly. Since the above-mentioned infusion pump front housing assembly has the above-mentioned technical effects, the above-mentioned infusion device should also have the same technical effects, which will not be described in detail here. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the open state structure of a specific embodiment of the infusion pump front housing assembly provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the closed state structure of a specific embodiment of the infusion pump front housing assembly provided by this utility model.

[0021] Figure 3 An exploded structural diagram of one specific embodiment of the infusion pump front housing assembly provided by this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of a specific embodiment of the infusion pump front housing assembly provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the inner panel structure in a specific embodiment of the infusion pump front housing assembly provided by this utility model.

[0024] Figure 6 This is an exploded view of the door assembly in one specific embodiment of the infusion pump front housing assembly provided by this utility model.

[0025] The components include: inner panel 1, self-locking shaft 11, door assembly 2, door panel 21, self-locking hook 22, button 23, mounting base 24, return spring 25, door hinge 26, guide plate 27, buffer spring 28, limit groove 29, guide post 210, and equalizing screw 211. Detailed Implementation

[0026] The core of this invention is to provide an infusion pump front housing assembly, which uses a self-locking hook and a self-locking shaft to achieve the opening and locking of the door component, resulting in a simple structure and space-saving design. Another core aspect of this invention is to provide an infusion device including the aforementioned infusion pump front housing assembly.

[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please refer to Figures 1 to 6 , Figure 1 This is a schematic diagram of the open state structure of a specific embodiment of the infusion pump front housing assembly provided by this utility model. Figure 2 This is a schematic diagram of the closed state structure of a specific embodiment of the infusion pump front housing assembly provided by this utility model. Figure 3 An exploded structural diagram of one specific embodiment of the infusion pump front housing assembly provided by this utility model; Figure 4 This is a cross-sectional schematic diagram of a specific embodiment of the infusion pump front housing assembly provided by this utility model; Figure 5 This is a schematic diagram of the inner panel structure in a specific embodiment of the infusion pump front housing assembly provided by this utility model. Figure 6 This is an exploded view of the door assembly in one specific embodiment of the infusion pump front housing assembly provided by this utility model.

[0029] This utility model provides a front housing assembly for an infusion pump. One end of the front housing assembly has an operating interface, and the other end has an inner panel. The front housing assembly includes an inner panel 1 and a door assembly 2 installed in front of the inner panel 1. The front and rear positions of each component are defined according to the positional relationship between the inner panel 1 and the door assembly 2. The end closer to the inner panel 1 is the rear end, and the end closer to the door assembly 2 is the front end. The door assembly 2 includes a door panel 21, a self-locking hook 22, a reset component, and a button 23. The self-locking hook 22 is installed behind the door panel 21. A self-locking shaft 11 is located at a corresponding position on the front of the inner panel 1. The reset component is also installed behind the door panel 21 and close to the self-locking hook 22. The reset component can push the self-locking hook 22 closer to and hook onto the self-locking shaft 11. The button 23 is embedded in the door panel 21. The rear end face of the button 23 has a first inclined surface, and the front end face of the self-locking hook 22 has a matching second inclined surface. Pressing the button 23 pushes the self-locking hook 22 away from the self-locking shaft 11.

[0030] When closing the door, the door panel 21 moves closer to the inner panel 1, causing the self-locking hook 22 to move closer to the self-locking shaft 11. After the door panel 21 is closed, the self-locking hook 22 aligns with the self-locking shaft 11. At this time, under the push of the reset component, the self-locking hook 22 hooks the self-locking shaft 11, thus locking the door assembly 2. When opening the door, pressing the button 23 pushes the self-locking hook 22 through the two inclined structures. The self-locking hook 22 pushes the reset component in the opposite direction and disengages from the self-locking shaft 11, thus unlocking the door assembly 2, and the door panel 21 can then be opened. The locking and unlocking of the door assembly 2 is achieved through the button 23, the self-locking hook 22, and the self-locking shaft 11. The structure is simple, low-cost, space-saving, and easy and quick to maintain.

[0031] Specifically, to facilitate the smooth movement of the self-locking hook 22, a groove is provided on the door panel 21. The front end of the self-locking hook 22 is embedded in the groove. The extension direction of the groove is parallel to the door panel 21, and the extension direction of the self-locking shaft 11 is parallel to the inner panel 1. The extension direction of the groove is perpendicular to the extension direction of the self-locking shaft 11. The self-locking hook 22 can move linearly along the groove. When the door panel 21 and the inner panel 11 are closed, the self-locking hook 22 moves linearly within the groove, approaching or moving away from the self-locking shaft 11, i.e., approaching or moving away from the side wall of the self-locking shaft 11, facilitating hooking and unlocking. A mounting groove can be provided at a corresponding position on the inner panel 1, with the self-locking shaft 11 located within the mounting groove. When the door panel 21 and the inner panel 11 are closed, the self-locking hook 22 will simultaneously insert into the mounting groove. Specifically, the groove extends longitudinally along the door panel 21, and the self-locking shaft 11 extends laterally along the inner panel 1. The layout of each component can also be adjusted according to the situation, all within the protection scope of this utility model.

[0032] In the infusion pump front housing assembly provided in this specific embodiment of the utility model, the self-locking hook 22 has a forward side and a backward side on both sides of the door panel 21 in the longitudinal direction. The forward side has a groove in the middle. When the door panel 21 is closed with the inner panel 11, the groove faces the self-locking shaft 11, so that the self-locking shaft 11 can be locked into the groove. The rear end of the forward side of the self-locking hook 22 has a guide slope. As the door panel 21 approaches the inner panel 11, the self-locking shaft 11 is located on the backward side of the self-locking hook 22. The guide slope first contacts the self-locking shaft 11, assisting in pushing the self-locking hook 22 to move to the backward side, so that the self-locking shaft 11 is located on the forward side of the self-locking hook 22. As the door panel 21 continues to approach, the self-locking shaft 11 aligns with the groove. The reset member then pushes the self-locking hook 22 to move to the forward side, and the self-locking shaft 11 is locked into the groove, thus achieving locking.

[0033] The button 23 includes a keycap and a keypost mounted on the rear end of the keycap. The keycap has anti-disengagement hooks on both sides. A first inclined surface is located on the rear end face of the keypost, tilting towards the retracting side of the self-locking hook 22, and a second inclined surface tilting towards the advancing side of the self-locking hook 22. Pressing the button pushes the self-locking hook 22 to move backward. To unlock, pressing the button 23, combined with the action of the first and second inclined surfaces, pushes the self-locking hook 22 to move backward, disengaging the self-locking shaft 11 from the groove, thus unlocking the device.

[0034] Preferably, the reset component includes a mounting base 24 and a reset spring 25. The mounting base 24 is fixedly installed on the back of the door panel 21. The mounting base 24 has a mounting groove on the side facing the self-locking hook 22. One end of the reset spring 25 is inserted into the mounting groove, and the other end of the reset spring 25 abuts against the retracting side of the self-locking hook 22. A protrusion can be provided at an appropriate position on the retracting side of the self-locking hook 22 to limit the end of the reset spring 25 so as to push the self-locking hook 22 to move forward.

[0035] One side of the door panel 21 is hinged to the inner panel 1 via the door hinge 26, and a pivot seat is provided on the side of the door panel 21 and the corresponding position of the inner panel 1 to stably connect the door hinge 26. Of course, other connection methods can also be used.

[0036] Based on the infusion pump front housing assembly provided in the above specific embodiments, an automatic door opening mechanism is installed behind the door panel 21. After the self-locking hook 22 disengages from the self-locking shaft 11, the automatic door opening mechanism pushes the door panel 21 away from the inner panel 1.

[0037] Specifically, the automatic door opening mechanism includes a guide plate 27 and a buffer spring 28. A limit groove 29 is provided behind the door panel 21. One end of the buffer spring 28 is installed in the limit groove 29, and the other end of the buffer spring 28 abuts against the front of the guide plate 27. Specifically, two buffer springs 28 can be provided, which are arranged diagonally.

[0038] Furthermore, a guide post 210 is provided behind the door panel 21. The guide post 210 is inserted into the guide hole on the door panel 21 to limit the movement of the guide plate 27, ensuring that the guide plate 27 moves in a direction perpendicular to the door panel 21. The guide plate 27 is connected to the back of the door panel 21 by equalizing screws 211, ensuring that the guide plate 27 will not detach from the door panel 21 and also allowing the guide plate 27 a certain range of motion. The buffer spring 28 serves both to buffer the guide plate 27 and to prevent the equalizing screws 211 from loosening. The equalizing screws 211, through the consistency of their screw height, ensure that the guide plate 27 is parallel to the door panel 21 after installation. The equal thread height on both sides of the equalizing screws 211 can transmit shear force more evenly, reduce stress concentration at the overlap, and make the connection more secure. Under the elastic force of the buffer spring 28, the guide plate 27 is raised higher than the door panel 21. When door assembly 2 is closed, guide plate 27 and inner panel 1 are tightly fitted together and exert force on each other. When the groove at the bottom of self-locking hook 22 is completely disengaged from self-locking shaft 11, door panel 21 will instantly spring open under the force between guide plate 27 and inner panel 1. That is, when door panel 21 and inner panel 1 are fastened together, buffer spring 28 is compressed, and the rear end face of guide plate 27 is in close contact with inner panel 1. When door panel 21 is unlocked, door panel 21 will instantly spring open under the force between guide plate 27 and inner panel 1.

[0039] When door assembly 2 is in the open state, and door panel 21 is driven, door assembly 2 will rotate around door hinge 26. The guide ramp of self-locking hook 22 will preferentially contact self-locking shaft 11. At this time, self-locking hook 22 will be subjected to reaction force from self-locking shaft 11. As the movement continues, self-locking hook 22 will compress return spring 25 and move backward until the guide ramp of self-locking hook 22 is completely disengaged from self-locking shaft 11. After disengagement, self-locking hook 22 will move forward rapidly under the elastic force of return spring 25, causing the groove of self-locking hook 22 to firmly hook self-locking shaft 11. Thus, the infusion pump door assembly 2 is closed.

[0040] When the door assembly 2 is in the closed state, when the driving force presses the button 23, the self-locking hook 22 will compress the return spring 25 and move backward until the groove of the self-locking hook 22 is completely disengaged from the self-locking shaft 11. As the guide plate 27 is lifted to a height higher than the door panel 21 under the elastic force of the buffer spring 28, the guide plate 27 and the inner panel 1 are tightly fitted together and exert force on each other. When they are disengaged, the door assembly 2 will instantly spring open under the action of the mutual force, thereby realizing the opening of the infusion pump door assembly 2.

[0041] In addition to the aforementioned infusion pump front housing assembly, this utility model also provides an infusion device including the aforementioned infusion pump front housing assembly. For the structure of other parts of the infusion device, please refer to the prior art, which will not be repeated here.

[0042] The infusion pump front housing assembly and infusion device provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An infusion pump front housing assembly, comprising an inner panel (1) and a door assembly (2) mounted in front of the inner panel (1), characterized in that, The door assembly (2) includes a door panel (21), a self-locking hook (22), a reset member, and a button (23). The self-locking hook (22) is installed behind the door panel (21). A self-locking shaft (11) is provided at a corresponding position on the front of the inner panel (1). The reset member pushes the self-locking hook (22) closer to and hooks the self-locking shaft (11). The button (23) is embedded in the door panel (21). A first inclined surface is provided on the rear end face of the button (23). A second inclined surface is provided on the front end face of the self-locking hook (22). Pressing the button (23) pushes the self-locking hook (22) to disengage and move away from the self-locking shaft (11).

2. The infusion pump front housing assembly according to claim 1, characterized in that, The door panel (21) is provided with a sliding groove, the extension direction of the sliding groove is parallel to the door panel (21), the extension direction of the self-locking shaft (11) is parallel to the inner panel (1), and the extension direction of the sliding groove is perpendicular to the extension direction of the self-locking shaft (11). The self-locking hook (22) can move linearly along the sliding groove.

3. The infusion pump front housing assembly according to claim 2, characterized in that, The self-locking hook (22) has a groove in the middle of its forward side, and the self-locking shaft (11) can be inserted into the groove. The self-locking hook (22) has a guide slope at its rear end. The second slope is inclined to the forward side of the self-locking hook (22). Pressing the button pushes the self-locking hook (22) to move backward.

4. The infusion pump front housing assembly according to claim 3, characterized in that, The button (23) includes a keycap and a key post installed at the rear end of the keycap. The first inclined surface is disposed on the rear end face of the key post and is inclined toward the retracting side of the self-locking hook (22).

5. The infusion pump front housing assembly according to claim 4, characterized in that, The reset component includes a mounting base (24) and a reset spring (25). The mounting base (24) is fixedly installed behind the door panel (21). The mounting base (24) has a mounting groove on the side facing the self-locking hook (22). One end of the reset spring (25) is inserted into the mounting groove, and the other end of the reset spring (25) abuts against the retracted side of the self-locking hook (22) to push the self-locking hook (22) to move forward.

6. The infusion pump front housing assembly according to claim 1, characterized in that, The inner panel (1) is hinged to one side of the door panel (21) via a door hinge (26).

7. The infusion pump front housing assembly according to any one of claims 1 to 6, characterized in that, An automatic door opening mechanism is installed behind the door panel (21). After the self-locking hook (22) disengages from the self-locking shaft (11), the automatic door opening mechanism pushes the door panel (21) away from the inner panel (1).

8. The infusion pump front housing assembly according to claim 7, characterized in that, The automatic door opening mechanism includes a guide plate (27) and a buffer spring (28). One end of the buffer spring (28) is installed in the limiting groove (29) behind the door panel (21), and the other end of the buffer spring (28) abuts against the front of the guide plate (27).

9. The infusion pump front housing assembly according to claim 8, characterized in that, A guide post (210) is provided behind the door panel (21). The guide post (210) is inserted into the guide hole on the door panel (21). The guide plate (27) is connected to the back of the door panel (21) by equal height screws (211).

10. An infusion device, characterized in that, Includes the infusion pump front housing assembly as described in any one of claims 1 to 9.

Images