Micro-infusion pump lock closing detection device

Abstract

The utility model discloses a micro infusion pump lock closing detection device which comprises a locking assembly and a detection assembly, the locking assembly is installed at one corner of the bottom of an infusion pump shell, the detection assembly is arranged above the locking assembly, and the detection assembly detects opening and closing of the locking assembly; the locking assembly comprises a mounting base, a lock cylinder, a lock hook, a limiting shaft and a baffle, the bottom of the mounting base is fixedly connected with the shell, the lock cylinder penetrates through the infusion pump shell and the mounting base to be connected with the lock hook, the lock cylinder is of a cam structure to drive the lock hook to move up and down to achieve locking or unlocking, and the limiting shaft is arranged on the lock cylinder and limits the rotating angle of the lock cylinder. The detection assembly detects the position of the end of the limiting shaft. The utility model has the beneficial effects of reasonable structure, convenience in locking, suitability for fixation between shells, and capability of sending out an alarm signal if the fixation is not in place.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, specifically to a micro-infusion pump lock closure detection device. Background Technology

[0002] The basic purpose of an insulin pump in an infusion pump is to mimic the secretory function of the pancreas, continuously injecting insulin subcutaneously into the user according to the dose required by the body, maintaining stable blood sugar throughout the day, and thus achieving the goal of controlling diabetes.

[0003] In some models of micro-infusion devices, the housing is divided into two parts with a locking device in between. Operations such as changing the reservoir are performed by opening one half of the housing. Current technology uses clips for securing the device. The drawback of this design is that when the user clips the housing, it often fails to fully engage, leading to the user mistakenly believing the housing is securely fixed. This can result in the reservoir falling out during use, rendering the device unusable.

[0004] The existing snap-fit ​​fixing method makes a "click" sound after it is fully snapped in place. This is not a clear indication for some elderly people with hearing loss or in noisy environments, and many users cannot be sure whether the shell is fixed in place. Utility Model Content

[0005] To address the aforementioned issues, the present invention aims to provide a micro-infusion pump lock closure detection device with a reasonable structure, convenient locking, suitable for fixing between housings, and capable of issuing an alarm signal if the fixing is not in place.

[0006] According to one aspect of the present invention, a micro-infusion pump lock-off detection device is provided, comprising: a lock-off component and a detection component, wherein the lock-off component is installed at one corner of the bottom of the infusion pump housing, and the detection component is disposed above the lock-off component, and the detection component detects the opening and closing of the lock-off component;

[0007] The locking assembly includes a mounting base, a lock cylinder, a lock hook, a limiting shaft, and a baffle. The bottom of the mounting base is fixedly connected to the housing. The lock cylinder passes through the pump housing and connects to the mounting base and lock hook. The lock cylinder drives the lock hook to move up and down to lock or unlock. A limiting shaft is provided on the lock cylinder to limit the rotation angle of the lock cylinder. A detection component detects the position of the end of the limiting shaft. The detection component detects whether the locking assembly is locked. In the locked state, the baffle of the limiting shaft interferes with the light from the detection component, triggering a signal to the main board, thus obtaining a locking signal.

[0008] In some embodiments, the mounting base includes: a base, a U-shaped base, a first mounting hole, and a second mounting hole. The U-shaped base is vertically fixed to the base. The first mounting hole is provided on one end face of the U-shaped base, and the second mounting hole is provided on the other end of the U-shaped base. The axial direction of the first mounting hole is perpendicular to the axial direction of the second mounting hole. The lock cylinder passes through the first mounting hole and connects to the lock hook. The base and U-shaped base facilitate the installation of the lock cylinder, lock hook, limit shaft, and baffle, as well as the installation with the housing.

[0009] In some embodiments, a first limiting groove and a second limiting groove are provided on the top of the U-shaped seat, and the first limiting groove and the second limiting groove are symmetrically arranged. The position of the limiting shaft is defined by the first limiting groove and the second limiting groove, thereby limiting the rotation angle of the lock cylinder.

[0010] In some embodiments, the lock cylinder includes a drive end, a cam, and a connecting shaft. The outer diameter of the drive end is larger than the outer diameter of the cam, and the outer diameter of the cam is larger than the outer diameter of the connecting shaft. The cam engages with a first mounting hole. The drive end and the cam are coaxially arranged, and the central axis of the connecting shaft is not on the same straight line as the central axis of the cam. By eccentrically aligning the connecting shaft, when the drive end rotates, the connecting shaft moves up and down along the center of the drive end, ultimately achieving the up and down movement of the lock hook.

[0011] In some embodiments, a third mounting hole is provided on the outer wall of the cam, and a limiting shaft is inserted into the third mounting hole. The limiting shaft contacts the first limiting groove and the second limiting groove to limit the rotation angle of the lock cylinder. The first limiting groove and the second limiting groove limit the position of the limiting shaft, thereby limiting the rotation angle of the lock cylinder.

[0012] In some embodiments, a fourth mounting hole is provided above the locking hook, through which a connecting shaft passes and drives the lower part of the locking hook to move up and down.

[0013] In some implementations, the baffle is bolted to a second mounting hole, and the baffle defines the end of the connecting shaft.

[0014] In some implementations, the detection component is an infrared sensor. The detection component is aligned above the second limiting groove, and the limiting shaft interferes with the detection component when it is in the second limiting groove. By interfering with the infrared sensor when the limiting shaft is in the locked position, a trigger signal is sent to the main board, resulting in a locked sensing signal. If no signal is detected, an alarm signal is triggered to notify the user.

[0015] This invention features a reasonable structure, convenient locking, suitability for fixing between housings, and an alarm signal if the fixing is incomplete. The invention uses a detection component to check if the locking component is locked. In the locked state, the baffle of the limiting shaft interferes with the light from the detection component, triggering a signal to the main board, resulting in a locking signal. The base and U-shaped seat facilitate the installation of the lock cylinder, lock hook, limiting shaft, and baffle, as well as its installation with the housing. The first and second limiting grooves limit the position of the limiting shaft, thereby limiting the rotation angle of the lock cylinder. An eccentrically set connecting shaft moves up and down along the center of the drive end when the drive end rotates, ultimately moving the lock hook up and down. When the limiting shaft is in the locked position, it interferes with the infrared sensor, triggering a signal to the main board, resulting in a locking signal. If no signal is detected, an alarm signal is triggered to inform the user. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a micro-infusion pump lock closure detection device according to the present invention;

[0017] Figure 2 This is an exploded view of the locking component of a micro-infusion pump lock closure detection device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the mounting base for a micro-infusion pump lock closure detection device according to the present invention;

[0019] Figure 4 This is a schematic diagram of the lock core of a micro-infusion pump lock closure detection device according to the present invention;

[0020] Figure 5 This is a schematic diagram of the locking hook of a micro-infusion pump lock closure detection device according to the present invention. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the terms according to the specific circumstances.

[0023] like Figure 1 As shown, the micro-infusion pump lock closure detection device of this utility model includes: a locking component 1 and a detection component 2. The locking component 1 is installed at one corner of the bottom of the infusion pump housing 3, and the detection component 2 is located above the locking component 1. The detection component 2 detects the opening and closing of the locking component 1.

[0024] like Figure 2 As shown, the locking assembly 1 includes: a mounting base 11, a lock cylinder 12, a lock hook 13, a limiting shaft 14, and a baffle 15. The bottom of the mounting base 11 is fixedly connected to the housing 3. The lock cylinder 12 passes through the infusion pump housing 3 and is connected to the mounting base 11 and the lock hook 13. The lock cylinder 12 drives the lock hook 13 to move up and down to lock or unlock. The limiting shaft 14 is provided on the lock cylinder 12, which limits the rotation angle of the lock cylinder 12. The detection assembly 2 detects the position of the end of the limiting shaft 14. The detection assembly 2 detects whether the locking assembly 1 is locked. In the locked state, the baffle 15 of the limiting shaft 14 interferes with the light from the detection assembly 2, triggering a signal to the main board, thus obtaining a locking signal.

[0025] like Figure 3 As shown, the mounting base 11 includes: a base 111, a U-shaped base 112, a first mounting hole 113, and a second mounting hole 114. The U-shaped base 112 is vertically fixed on the base 111. The first mounting hole 113 is provided on one end face of the U-shaped base 112, and the second mounting hole 114 is provided on the other end of the U-shaped base 112. The axial direction of the first mounting hole 113 is perpendicular to the axial direction of the second mounting hole 114. The lock cylinder 12 passes through the first mounting hole 113 and connects to the lock hook 13. The base 111 and the U-shaped base 112 facilitate the installation of the lock cylinder 12, the lock hook 13, the limiting shaft 14, and the baffle 15, as well as the installation with the housing 3.

[0026] The top of the U-shaped base 112 is provided with a first limiting groove 115 and a second limiting groove 116, which are symmetrically arranged. The first limiting groove 115 and the second limiting groove 116 limit the position of the limiting shaft 14, thereby limiting the rotation angle of the lock cylinder 12. In practice, the rotation angle of the lock cylinder 12 can be controlled by setting the depth of the first limiting groove 115 and the second limiting groove 116.

[0027] like Figure 4As shown, the lock cylinder 12 includes a drive end 121, a cam 122, and a connecting shaft 123. The outer diameter of the drive end 121 is larger than the outer diameter of the cam 122, and the outer diameter of the cam 122 is larger than the outer diameter of the connecting shaft 123. The cam 122 engages with the first mounting hole 113. The drive end 121 and the cam 122 are coaxially arranged, and the central axis of the connecting shaft 123 is not on the same straight line as the central axis of the cam 122. By eccentrically aligning the connecting shaft 123, it moves up and down along the center of the drive end 121 when the drive end 121 rotates, ultimately achieving the up and down movement of the lock hook 13.

[0028] In practical implementation, to prevent the outer wall of the drive end 121 from being too smooth and inconvenient to exert force when loosening from the locked state, a drive block with a rectangular or hexagonal cross-section is set at the end of the drive end 121. Locking is achieved by rotating the drive block with a tool that matches it. Of course, the drive block should not protrude from the end of the drive end 121 to prevent snagging and inconvenience in use.

[0029] A third mounting hole 124 is provided on the outer wall of the cam 122. The limiting shaft 14 is inserted into the third mounting hole 124, and the limiting shaft 14 contacts the first limiting groove 115 and the second limiting groove 116 to limit the rotation angle of the lock cylinder 12. The position of the limiting shaft 14 is limited by the first limiting groove 115 and the second limiting groove 116, thereby limiting the rotation angle of the lock cylinder 12.

[0030] like Figure 5 As shown, a fourth mounting hole 131 is provided above the lock hook 13, and a connecting shaft 123 passes through the fourth mounting hole 131. The connecting shaft 123 drives the lower part of the lock hook 13 to move up and down. By rotating the lock cylinder 12, the lock hook 13 moves up and down, thereby fixing or loosening the bottom support part that needs to be fixed through the bottom of the lock hook 13.

[0031] The baffle 15 is connected to the second mounting hole 114 by bolts, and the baffle 15 defines the end of the connecting shaft 123.

[0032] The detection component 2 is an infrared sensor. The detection component 2 is aligned above the second limiting groove 116. When the limiting shaft 14 is located in the second limiting groove 116, it interferes with the detection component 2. By interfering with the infrared sensor when the limiting shaft 14 is in the locked position, a trigger signal is sent to the main board to obtain a locked sensing signal. If no signal is detected, an alarm signal will be triggered to notify the user.

[0033] In the locked state, the limiting shaft 14 is in contact with the second limiting groove 116, and the infrared sensor is directly facing the limiting shaft 14. The limiting shaft 14 interferes with and blocks the infrared light emitted by the infrared sensor. The infrared sensor feeds back the signal to the main board of the infusion device, receiving a locking signal. Conversely, if the limiting shaft 14 is far from the second limiting groove 116, the limiting shaft 14 will not interfere with and block the infrared light emitted by the infrared sensor. The main board of the infusion device will not receive a signal from the infrared sensor but will still determine that it is not locked and will trigger an alarm signal to notify the user. The user can deactivate the alarm by re-locking the device.

[0034] The above descriptions are merely some embodiments of this utility model. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A micro-infusion pump lock closure detection device, characterized in that, include: A locking assembly and a detection assembly are provided. The locking assembly is installed at one corner of the bottom of the infusion pump housing, and the detection assembly is located above the locking assembly. The detection assembly detects the opening and closing of the locking assembly. The locking assembly includes: a mounting base, a lock cylinder, a lock hook, a limiting shaft, and a baffle. The bottom of the mounting base is fixedly connected to the housing. The lock cylinder passes through the pump housing and is connected to the mounting base and the lock hook. The lock cylinder drives the lock hook to move up and down to lock or unlock. A limiting shaft is provided on the lock cylinder, which limits the rotation angle of the lock cylinder. The detection assembly detects the position of the end of the limiting shaft.

2. The micro-infusion pump lock closure detection device according to claim 1, characterized in that, The mounting base includes: a base, a U-shaped base, a first mounting hole, and a second mounting hole. The U-shaped base is vertically fixed on the base. The first mounting hole is provided on one end face of the U-shaped base, and the second mounting hole is provided on the other end of the U-shaped base. The axial direction of the first mounting hole is perpendicular to the axial direction of the second mounting hole. The lock cylinder passes through the first mounting hole and is connected to the lock hook.

3. The micro-infusion pump lock closure detection device according to claim 2, characterized in that, The top of the U-shaped seat is provided with a first limiting groove and a second limiting groove, which are symmetrically arranged.

4. The micro-infusion pump lock closure detection device according to claim 3, characterized in that, The lock cylinder includes a drive end, a cam, and a connecting shaft. The outer diameter of the drive end is larger than the outer diameter of the cam, the outer diameter of the cam is larger than the outer diameter of the connecting shaft, the cam engages with a first mounting hole, the drive end is coaxial with the cam, and the central axis of the connecting shaft is not on the same straight line as the central axis of the cam.

5. The micro-infusion pump lock closure detection device according to claim 4, characterized in that, The outer wall of the cam is provided with a third mounting hole, and the limiting shaft is inserted into the third mounting hole. The limiting shaft contacts the first limiting groove and the second limiting groove to limit the rotation angle of the lock cylinder.

6. The micro-infusion pump lock-off detection device according to claim 5, characterized in that, A fourth mounting hole is provided above the locking hook, and the connecting shaft passes through the fourth mounting hole, driving the lower part of the locking hook to move up and down.

7. The micro-infusion pump lock closure detection device according to claim 6, characterized in that, The baffle is connected to the second mounting hole by bolts, and the baffle defines the end of the connecting shaft.

8. The micro-infusion pump lock closure detection device according to claim 7, characterized in that, The detection component is an infrared sensor. The detection component is aligned above the second limiting groove. When the limiting shaft is located in the second limiting groove, it interferes with the detection component.

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