Infusion pump door spindle damping mechanism
By designing nested connection and damping structures on the infusion pump door shaft, the problem of traditional pump doors requiring handheld is solved, stable rotation and noise reduction are achieved, and user experience is improved.
Patent Information
- Application Number
- CN202421003170.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The traditional infusion pump door has no door shaft damping mechanism. After opening the door, you need to hold it by hand to prevent the door from opening automatically, resulting in poor noise and poor user experience.
A gate shaft damping mechanism of the infusion pump is designed, and the rotation and limiting structure is formed through nested connected rotary shafts, hinges, positioning pins, shaft centers, concave wheels, cams and damping plates to prevent the pump body door from gravity. Automatically and quickly open, increasing rotation stability and damping effect.
It effectively prevents the pump body door from being damaged due to excessively rapid automatic rotation of gravity, reduces noise, improves user experience, ensures the stable rotation and positioning of the pump body door, and enhances the stability and safety of the overall structure.
Smart Images
Figure CN222207595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of an infusion pump door shaft, in particular to an infusion pump door shaft damping mechanism. Background Art
[0002] When in use, the infusion pump door shaft is used to control the speed and amount of drugs or liquids entering the patient's body during the medical process, and cooperates with the corresponding motor, pump body, delivery tube and control unit to form a working effect, thereby effectively controlling the infusion speed and infusion volume. However, there are still some problems when using the existing infusion pump door shaft.
[0003] In the prior art, the “liquid pump switch door structure” in the authorization disclosure (announcement) number: CN219681339U is provided with a door rear shell, a door buckle seat is fixed at the upper edge of the door rear shell, a door buckle pin is fixed on the inner side of the door buckle seat, and a door buckle pin sleeve is sleeved on the outer side of the door buckle pin; including: a groove is opened at the central axis of the door rear shell, and a door axis pin sleeve is fixed at the lower edge of the door rear shell, a door axis pin is arranged on the inner side of the door axis pin sleeve, and a door front shell is fixedly sleeved on the outer side of the door axis pin; a door front plate is fixed to the side of the door front shell by bolts, a door buckle hand piece is embedded in the interior of the door front shell, and the door buckle hand piece is connected to the door front shell by the door buckle hand pin, and a fixing block is fixed on the surface of the door front plate;
[0004] During the operation of the above-mentioned device, when the door of the infusion pump is opened and closed, the stop and infusion effects of the infusion tube can be controlled by opening and closing, without the need to use other additional control structures, thereby improving the convenience of operation. The traditional pump door has no door shaft damping mechanism. After opening the door, the pump door needs to be held by hand, otherwise the door will open quickly under the action of its own gravity. The gravity of the door causes the door to rebound, which will produce certain noise and give the user a poor experience. Utility Model Content
[0005] The purpose of the utility model is to provide an infusion pump door shaft damping mechanism to solve the problem that the traditional pump door has no door shaft damping mechanism proposed in the above background technology. After opening the door, it is necessary to hold the pump door with hands, otherwise the door will open quickly under the action of its own gravity. The gravity of the door causes the door to rebound, which will produce certain noise and give the user a poor user experience.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an infusion pump door shaft damping mechanism is provided with a pump body door that is easy to flip;
[0007] It comprises: a rotating shaft, which is nested and connected to the inner surface of the pump body door, and a hinge is nested and connected to the outer surface of the rotating shaft, and the outer surface of the hinge is assembled with the pump body main shell, and a positioning pin is installed on the outer surface of the pump body door;
[0008] The shaft is nested and connected to the outer surface of the positioning pin, and a positioning ring is installed on the outer surface of the shaft, and a connecting rod is installed on the other side of the outer surface of the positioning ring, and a concave wheel is penetrated and connected to the outer surface of the connecting rod;
[0009] The limit blocks are installed on both sides of the outer surface of the concave wheel, and a hinge is installed on the right side of the outer surface of the concave wheel, and the inner surface of the concave wheel is limitedly connected with a cam, and a limit groove is opened on the inner surface of the cam, and a connecting rod is connected through the inner surface limit of the limit groove, and a protrusion is installed on the rear side of the outer surface of the cam, and the protrusion is cross-connected with the limit block.
[0010] Preferably, the pump body door forms a rotating structure with the pump body main shell through a rotating shaft and a hinge, and the hinge and the pump body main shell form a limited nesting structure, and the pump body door is embedded in the outer surface of the positioning pin.
[0011] The above structure facilitates stable nesting and a rotation setting during use, thereby controlling the normal rotation setting of the pump door, and cooperating with the damping rotation structure of the hinge connection to prevent damage to the pump door due to excessively fast rotation due to gravity when the pump door is automatically opened.
[0012] Preferably, the axis forms a limited nested structure with the pump body door through the positioning pin, and the axis, the positioning ring and the connecting rod continuously form an integrated structure, and the rear side of the outer surface of the connecting rod is in a "U" shape.
[0013] Through the above structure, a stable integrated structure can be formed during use, which is convenient for connecting the hinge and the pump body door, and the cross-sectional structure setting of the connection is convenient for forming a stable nested engagement and positioning for the cam.
[0014] Preferably, the concave wheel is embedded and installed on the left side of the outer surface of the hinge, and the hinge forms a through-rotating structure with the axis through the concave wheel, the connecting rod, and the axis, and the limit block is symmetrically arranged about the front side of the outer surface of the concave wheel. At the same time, the concave wheel forms an angle positioning rotating structure with the cam through the limit block and the protrusion, and the cam forms a limiting through-structure with the connecting rod through the limit groove.
[0015] Through the above structure, the overall assembly between the concave wheel and the hinge during use can improve the stability of use and prevent breakage. The concave wheels on which the limit blocks are installed successively form an alternating arrangement with the cams on which the protrusions are installed, thereby effectively controlling the rotation angle between the pump body door and the pump body main shell, and forming friction to control the rotation of the pump body door.
[0016] Preferably, the outer surface of the cam is fitted with a damping plate, and the outer front side of the damping plate is fitted with a gasket, and the inner surfaces of the damping plate and the gasket are penetrated by a connecting rod, and the front end of the outer surface of the connecting rod is threadedly assembled with a nut.
[0017] The above structure facilitates the continuous assembly of components in a stable manner during use, and forms a threaded locking arrangement to control the elastic pressure between the damping sheets and control the damping effect between the cam and the concave wheel.
[0018] Preferably, the damping plate and the connecting rod form a through structure, and the front and rear sides of the outer surface of the damping plate are respectively fitted with the outer surfaces of the gasket and the cam, and the connecting rod and the nut form a threaded locking structure, and the cross-sectional shape of the outer surface of the damping plate is a curved structure.
[0019] The above structure facilitates stable control of the damping effect during use, and forms stable control in coordination with the elasticity of the assembled damping sheet.
[0020] Compared with the prior art, the beneficial effects of the utility model are:
[0021] 1. The infusion pump door shaft damping mechanism is provided with a pump housing body that is easy to position and use. The pump door is effectively assembled by installing hinges and rotating shafts, and a corresponding axis is installed at the pump door to control the rotation angle of the pump door and prevent the pump body from being damaged by excessive rotation speed during rotation. The axis is connected to the hinge through the use of a connecting rod, so as to cooperate with the use of a concave wheel and a cam to control the angular positioning stability of the pump door after rotation;
[0022] 2. The damping mechanism of the door shaft of the infusion pump is provided with a cam for limited use, and cooperates with the limit groove opened on it to effectively engage and position on the connecting rod assembled on the axis, thereby controlling the rotation of the pump door to drive the cam on the axis to form an angle positioning with the concave wheel, and the elastic squeezing of the damping plate by the nut installed on the connecting rod, effectively controlling the damping force between the cam and the concave wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the pump door of the utility model;
[0024] Figure 2 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the pump body door of the utility model;
[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the half-section of the axis of the utility model;
[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the concave wheel of the utility model;
[0027] Figure 5 It is a semi-sectioned three-dimensional structural schematic diagram of the cam of the utility model.
[0028] In the figure: 1, pump body door; 2, rotating shaft; 3, hinge; 4, pump body main shell; 5, positioning pin; 6, axis; 7, positioning ring; 8, connecting rod; 9, concave wheel; 10, limit block; 11, cam; 12, limit groove; 13, protrusion; 14, damping plate; 15, gasket; 16, nut. DETAILED DESCRIPTION
[0029] 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.
[0030] See also Figure 1-Figure 5 , the utility model provides a technical solution: an infusion pump door shaft damping mechanism, a pump body door 1 that is easy to flip;
[0031] It includes: a rotating shaft 2, which is nested and connected to the inner surface of the pump body door 1, and a hinge 3 is nested and connected to the outer surface of the rotating shaft 2, and a pump body main shell 4 is assembled on the outer surface of the hinge 3, and a positioning pin 5 is installed on the outer surface of the pump body door 1;
[0032] The pump door 1 forms a rotating structure with the pump main shell 4 through the rotating shaft 2 and the hinge 3, and the hinge 3 and the pump main shell 4 form a limited nesting structure, and the pump door 1 and the outer surface of the positioning pin 5 are embedded and installed.
[0033] When in use, the door hook in the control pump body main shell 4 is disengaged from the door catch stroke member to adjust, thereby controlling the locked pump body door 1 to be out of position, and the pump body door 1 will rotate between the hinge 3 connected by the rotating shaft 2 and the pump body main shell 4 through the action of gravity, and during the rotation process, the positioning pin 5 assembled with the pump body door 1 will drive the shaft 6 assembled with the positioning pin 5 to form a simultaneous rotation, thereby controlling the rotation between the shaft 6 and the hinge 3;
[0034] The shaft 6 is nested and connected to the outer surface of the positioning pin 5, and a positioning ring 7 is installed on the outer surface of the shaft 6, and a connecting rod 8 is installed on the other side of the outer surface of the positioning ring 7, and a concave wheel 9 is penetrated and connected to the outer surface of the connecting rod 8;
[0035] The limit blocks 10 are installed on both sides of the outer surface of the concave wheel 9, and the hinge 3 is installed on the right side of the outer surface of the concave wheel 9, and the inner surface of the concave wheel 9 is limitedly connected with a cam 11, and the inner surface of the cam 11 is provided with a limit groove 12, and the inner surface of the limit groove 12 is limitedly connected with a connecting rod 8, and a protrusion 13 is installed on the rear side of the outer surface of the cam 11, and the protrusion 13 is cross-connected with the limit block 10.
[0036] The axis 6 forms a limited nested structure with the pump body door 1 through the positioning pin 5, and the axis 6, the positioning ring 7 and the connecting rod 8 continuously form an integrated structure, and the rear side of the outer surface of the connecting rod 8 is in a "U" shape.
[0037] The concave wheel 9 is embedded in the left side of the outer surface of the hinge 3, and the hinge 3 forms a through-rotation structure with the axis 6 through the concave wheel 9 and the connecting rod 8, and the limit block 10 is symmetrically arranged about the front side of the outer surface of the concave wheel 9. At the same time, the concave wheel 9 forms an angle positioning rotation structure with the cam 11 through the limit block 10 and the protrusion 13, and the cam 11 forms a limiting through-structure with the connecting rod 8 through the limit groove 12.
[0038] The outer surface of the cam 11 is fitted with a damping plate 14, and the outer front side of the damping plate 14 is fitted with a gasket 15, and the inner surfaces of the damping plate 14 and the gasket 15 are penetrated and connected with a connecting rod 8, and the outer front end of the connecting rod 8 is threadedly assembled with a nut 16.
[0039] The damping plate 14 and the connecting rod 8 form a through structure, and the front and rear sides of the outer surface of the damping plate 14 are respectively in contact with the outer surfaces of the gasket 15 and the cam 11, and the connecting rod 8 and the nut 16 form a threaded locking structure. At the same time, the cross-sectional shape of the outer surface of the damping plate 14 is a curved structure.
[0040] When the axis 6 rotates during use, the locating ring 7 installed thereon will be connected to the side of the concave wheel 9 installed on the hinge 3, and the limiting block 10 assembled with the concave wheel 9 will form a through connection with the connecting rod 8 assembled with the axis 6, and control the rotation between the connecting rod 8 and the concave wheel 9, and the connecting rod 8 will form a limited through setting with the outer surface of the connecting rod 8 through the limiting groove 12 opened by the cam 11, and control the convex block 13 on the cam 11 to form a synchronous rotation, and control the convex block 13 to form a rotation on the inner surface of the concave wheel 9, and the limiting block 10 assembled with the concave wheel 9 An alternating assembly is formed to control the deflection angle between the protrusion 13 and the cam wheel 9, thereby controlling the angle between the pump body door 1 and the pump body main shell 4, and then continuously assembling the relatively arranged damping plates 14 on the outside of the cam 11, and passing the damping plates 14 through the connecting rod 8, and threading the nut 16 on the end of the outer surface of the connecting rod 8, so as to lock the damping plate 14 and control the elasticity of the outer surface of the damping plate 14, thereby controlling the friction between the cam 11 and the cam wheel 9, thereby controlling the rapid rotation of the pump body door 1 when it is opened to cause damage.
[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A damping mechanism for the door shaft of an infusion pump, with a pump body door (1) that is easy to flip; It is characterized in that include: The rotating shaft (2) is nested and connected to the inner surface of the pump body door (1), and the outer surface of the rotating shaft (2) is nested and connected to a hinge (3), and the outer surface of the hinge (3) is assembled with a pump body main shell (4), and the outer surface of the pump body door (1) is installed with a positioning pin (5); The shaft (6) is nested and connected to the outer surface of the positioning pin (5), and a positioning ring (7) is installed on the outer surface of the shaft (6), and a connecting rod (8) is installed on the other side of the outer surface of the positioning ring (7), and a concave wheel (9) is penetrated and connected to the outer surface of the connecting rod (8); The limit blocks (10) are installed on both sides of the outer surface of the cam wheel (9), and a hinge (3) is installed on the right side of the outer surface of the cam wheel (9), and the inner surface of the cam wheel (9) is limitedly connected with a cam (11), and a limit groove (12) is provided on the inner surface of the cam (11), and a connecting rod (8) is connected to the inner surface of the limit groove (12), and a protrusion (13) is installed on the rear side of the outer surface of the cam (11), and the protrusion (13) is cross-connected with the limit block (10).
2. The infusion pump door shaft damping mechanism according to claim 1, characterized in that: The pump body door (1) forms a rotating structure with the pump body main shell (4) through a rotating shaft (2) and a hinge (3), and the hinge (3) and the pump body main shell (4) form a limited nesting structure, and the pump body door (1) and the outer surface of the positioning pin (5) are embedded and installed.
3. The infusion pump door shaft damping mechanism according to claim 1, characterized in that: The shaft (6) forms a limited nested structure with the pump body door (1) through the positioning pin (5), and the shaft (6) continuously forms an integrated structure with the positioning ring (7) and the connecting rod (8), and the rear side of the outer surface of the connecting rod (8) is in a "U"-shaped structure.
4. The infusion pump door shaft damping mechanism according to claim 1, characterized in that: The concave wheel (9) is embedded and installed on the left side of the outer surface of the hinge (3), and the hinge (3) forms a through-rotation structure with the axis (6) through the concave wheel (9) and the connecting rod (8), and the limiting block (10) is symmetrically arranged with respect to the front side of the outer surface of the concave wheel (9). At the same time, the concave wheel (9) forms an angle positioning rotation structure with the cam (11) through the limiting block (10) and the convex block (13), and the cam (11) forms a through-positioning structure with the connecting rod (8) through the limiting groove (12).
5. The infusion pump door shaft damping mechanism according to claim 1, characterized in that: The outer surface of the cam (11) is fitted with a damping plate (14), and the outer front side of the damping plate (14) is fitted with a gasket (15), and the inner surfaces of the damping plate (14) and the gasket (15) are penetrated and connected with a connecting rod (8), and the front end of the outer surface of the connecting rod (8) is threadedly assembled with a nut (16).
6. The infusion pump door shaft damping mechanism according to claim 5, characterized in that: The damping plate (14) and the connecting rod (8) form a through structure, and the front and rear sides of the outer surface of the damping plate (14) are respectively in contact with the outer surfaces of the gasket (15) and the cam (11), and the connecting rod (8) and the nut (16) form a threaded locking structure. At the same time, the cross-sectional shape of the outer surface of the damping plate (14) is a curved structure.