CN210293685U - Injection pump transmission lead screw and meshing arm meshing detection device - Google Patents
Injection pump transmission lead screw and meshing arm meshing detection device Download PDFInfo
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- CN210293685U CN210293685U CN201921300539.3U CN201921300539U CN210293685U CN 210293685 U CN210293685 U CN 210293685U CN 201921300539 U CN201921300539 U CN 201921300539U CN 210293685 U CN210293685 U CN 210293685U
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- arm
- frame body
- meshing
- engagement
- screw rod
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Abstract
The utility model provides a syringe pump transmission lead screw and meshing arm meshing detection device, which comprises a frame body, a transmission component, a lead screw, a slide seat, a meshing arm component, a double-layer loop bar-shaped resistor and a detection circuit; the frame body is a middle cavity, and the left side and the right side of the frame body are provided with mounting frames of mounting plates; the upper end of the frame body is also horizontally provided with a sliding column, and the left end and the right end of the sliding column are respectively fixedly arranged on the mounting plate; a bottom plate is horizontally arranged at the bottom end of the frame body, a guide rail is arranged on the bottom plate, and a double-layer loop strip-shaped resistor is arranged on the bottom plate on one side of the guide rail; a transmission assembly is fixedly arranged on the left mounting plate of the frame body; the engagement arm assembly comprises an engagement arm, a marble and a spring; the bottom of the marble is attached to a double-layer loop strip resistor; the detection circuit is electrically connected with the double-layer loop strip-shaped resistor. The utility model discloses an engagement detection device, whether it can simple effectual detection transmission lead screw and mesh arm mesh gets rid of the risk that the syringe pump did not annotate the liquid and bring.
Description
Technical Field
The utility model belongs to the technical field of the syringe pump, a syringe pump transmission lead screw and meshing arm meshing detection device is related to.
Background
At present, in the detection of whether the constant-speed injection pump is meshed with the transmission screw rod or not, grating detection, optical coupler detection and other modes are mainly adopted.
And (4) a grating detection mode. The grating detection mode is formed by an LED and a grating ruler, the key point is low cost, and the defects are that the LED and the grating are very accurate in installation requirement, the production process is difficult to control in reproduction, position deviation is easily caused in the use process, false alarms are easily generated by slight installation accuracy change of the LED and the grating ruler, and the normal operation of a machine is influenced, so that the injection of medicines into a patient is delayed, and the risk of delayed treatment is caused.
The optical coupler detection key points are simple to install and low in cost. The optical coupler has the advantages that the meshing arm and the transmission screw rod can be triggered to stop the optical coupler only when the distance between the meshing arm and the transmission screw rod is large, the optical coupler is difficult to detect when the screw rod and the meshing arm are not meshed in practical application, and the risk of undetected detection exists.
To above-mentioned detection device installation technology requirement height, installation inconvenience, have factors such as detection hidden danger, the syringe pump transmission lead screw of this application and meshing arm meshing detection device has fully embodied advantages such as the installation is simple, installation space is little, the installation is convenient, low price data acquisition is simple.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a syringe pump transmission lead screw and meshing arm meshing detection device, whether it can simple effectual detection transmission lead screw and meshing arm mesh, get rid of the syringe pump and do not annotate the risk that the liquid brought.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a device for detecting the engagement of a transmission screw rod and an engagement arm of an injection pump comprises a frame body, a transmission assembly, a screw rod, a sliding seat, an engagement arm assembly and a double-layer loop strip-shaped resistor;
the frame body is a middle cavity, and the left side and the right side of the frame body are provided with mounting frames of mounting plates; the upper end of the frame body is also horizontally provided with a sliding column, and the left end and the right end of the sliding column are respectively fixedly arranged on the mounting plate; a bottom plate is horizontally arranged at the bottom end of the frame body, a guide rail is arranged on the bottom plate, and a double-layer loop strip-shaped resistor is arranged on the bottom plate on one side of the guide rail;
a transmission assembly is fixedly arranged on the left mounting plate of the frame body and comprises a motor and a gear set, the output end of the motor is connected with the gear set, and the output end of the gear set is connected with the left end of a horizontally arranged screw rod; the motor drives the screw rod to rotate through the transmission of the gear set;
an engaging arm component is sleeved on the screw rod and is engaged with the screw rod; the right end of the meshing arm component is fixedly connected with a sliding seat, and the upper end and the lower end of the sliding seat are respectively sleeved on the sliding column and the guide rail;
the engagement arm assembly comprises an engagement arm, a marble and a spring; a concave cavity is formed in the bottom of the meshing arm, and a spring and a marble are sequentially arranged in the concave cavity from top to bottom; the marble is embedded in the cavity and can roll in the cavity without separating from the cavity.
The bottom of the marble is attached to the double-layer loop strip-shaped resistor. The double-layer loop strip resistor comprises a silver-plated conducting layer on the upper layer and a resistance carbon film coating on the lower layer, and a gap is formed between the silver-plated conducting layer and the resistance carbon film coating.
Preferably, the right end of the sliding seat is connected with a horizontally arranged push rod. In use, the plunger is coupled to the syringe plunger.
Preferably, the upper end of the meshing arm is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod and meshed with the screw rod.
Preferably, the marble is a round steel ball.
The motor drives the screw rod to rotate through the gear set, the screw rod rotates to drive the meshing arm to slide left and right, and the meshing arm drives the sliding seat and the push rod to slide left and right.
The detection principle is as follows: when the engaging arm is disengaged from the screw rod, the marble at the bottom of the engaging arm is disengaged from the double-layer loop strip-shaped resistor.
When the screw rod is completely meshed with the meshing arm, the top end of the steel ball extrudes the double-layer loop resistor to enable the upper silver-plated conductive layer to be in contact with the lower resistance carbon film coating to form conductive communication, and when the transmission screw rod of the injection pump is separated from the meshing arm, the top end of the steel ball cannot extrude the resistance carbon film coating, and the upper coating and the lower coating are separated.
For example: when a 5V DC voltage is applied to the double-layer loop resistor R, sampling is performed from the upper layer side of R1. When the transmission screw rod of the injection pump is completely meshed with the meshing arm, the bottom end of the steel ball extrudes the double-layer loop resistor, so that the upper silver-plated conductive layer is in contact with the lower resistance carbon film coating to form conductive communication, and then the coating on the R1 can read the level. When the transmission screw rod and the engaging arm of the injection pump are completely separated, the top end of the steel ball no longer presses the double-layer loop resistor, so that the upper silver-plated conductive layer is separated from the lower resistance carbon film coating, and the coating on the R1 cannot read the level. Whether the transmission screw rod of the injection pump is meshed with the meshing arm can be judged by reading the level, and once the abnormity is found in the injection, the alarm is given, so that a nurse can find and handle the abnormity in time, and the medical accident is avoided.
The device for detecting the engagement of the transmission screw rod and the engagement arm of the injection pump is mainly applied as follows: after the device is additionally arranged on the constant-speed injection pump, the injection pump can detect whether the transmission part is separated from the transmission part in real time in the injection process, and the risk caused by no liquid injection due to the fact that the engagement arm and the transmission screw rod are not engaged in the injection process is prevented.
The utility model has the advantages that:
the device has the advantages of simple installation, small installation space, convenient installation, low price, simple data acquisition and the like;
whether its simple effectual detection transmission lead screw meshes with the meshing arm, gets rid of the risk that the syringe pump did not annotate the liquid and bring.
Drawings
Fig. 1 is a schematic structural view of the engagement detection device for the transmission screw rod and the engagement arm of the injection pump of the present invention;
fig. 2 is a front view of the engagement detection device for the transmission screw rod and the engagement arm of the syringe pump of the present invention;
FIG. 3 is a schematic diagram of the connection of an engagement arm assembly to a double loop strip resistor;
fig. 4 is a partially enlarged view of fig. 1.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-4, a syringe pump transmission screw rod and engagement arm engagement detection device comprises a frame body 1, a transmission assembly 2, a screw rod 3, a sliding seat 4, an engagement arm assembly 5, a double-layer loop strip resistor 6 and a detection circuit;
the frame body 1 is an installation frame with a middle cavity and installation plates 12 arranged on the left side and the right side; a sliding column 11 is horizontally arranged at the upper end of the frame body 1, and the left end and the right end of the sliding column 11 are respectively fixedly arranged on the mounting plate 12; a bottom plate 13 is horizontally arranged at the bottom end of the frame body 1, a guide rail 14 is arranged on the bottom plate 13, and a double-layer loop strip-shaped resistor 6 is arranged on the bottom plate 13 on one side of the guide rail 14;
a transmission assembly 2 is fixedly arranged on a left mounting plate 12 of the frame body 1, the transmission assembly 2 comprises a motor 21 and a gear set 22, an output shaft of the motor 21 is connected with the gear set 22, and an output end of the gear set 22 is connected with the left end of a horizontally arranged screw rod 3; the screw rod 3 is horizontally arranged in the cavity of the frame body 1; the motor 21 drives the screw rod 3 to rotate through the transmission of the gear set 22;
an engaging arm component 5 is sleeved on the screw rod 3, and the engaging arm component 5 is engaged with the screw rod 3; the right end of the meshing arm component 5 is fixedly connected with a sliding seat 4, and the upper end and the lower end of the sliding seat 4 are respectively sleeved on a sliding column 11 and a guide rail 14;
the engagement arm assembly 5 comprises an engagement arm 51, a marble 52 and a spring; a concave cavity is arranged at the bottom of the engaging arm 51, and a spring and a marble 52 are sequentially arranged in the concave cavity from top to bottom; the ball 52 is embedded within the cavity and can roll within the cavity without disengaging from the cavity.
The bottom of the marble 52 is attached to the double-layer loop strip resistor 6. The double-layer loop strip resistor 6 comprises a silver-plated conductive layer on the upper layer and a resistance carbon film coating on the lower layer, and a gap is formed between the silver-plated conductive layer and the resistance carbon film coating.
The detection circuit is electrically connected with the double-layer loop strip-shaped resistor 6, the detection circuit is printed on the printed circuit board 8, and the printed circuit board 8 is fixedly arranged on the frame body 1.
Preferably, the right end of the sliding seat 4 is connected with a horizontally arranged push rod 7. In use, the plunger 7 is connected to a syringe plunger.
Preferably, the upper end of the engaging arm 51 is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod 3 and is engaged with the screw rod 3.
Preferably, the marble 52 is a round steel ball.
The motor 21 drives the screw rod 3 to rotate through the gear set 22, the screw rod 3 rotates to drive the meshing arm 51 to slide left and right, and the meshing arm 51 drives the sliding seat 4 and the push rod 7 to slide left and right.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. The utility model provides a syringe pump transmission lead screw and meshing arm meshing detection device which characterized in that: the device comprises a frame body, a transmission assembly, a screw rod, a sliding seat, a meshing arm assembly, a double-layer loop strip-shaped resistor and a detection circuit;
the frame body is a middle cavity, and the left side and the right side of the frame body are provided with mounting frames of mounting plates; the upper end of the frame body is also horizontally provided with a sliding column, and the left end and the right end of the sliding column are respectively fixedly arranged on the mounting plate; a bottom plate is horizontally arranged at the bottom end of the frame body, a guide rail is arranged on the bottom plate, and a double-layer loop strip-shaped resistor is arranged on the bottom plate on one side of the guide rail;
a transmission assembly is fixedly arranged on the left mounting plate of the frame body;
the transmission assembly comprises a motor and a gear set, the output end of the motor is connected with the gear set, and the output end of the gear set is connected with the left end of the horizontally arranged screw rod; the motor drives the screw rod to rotate through the transmission of the gear set;
an engaging arm component is sleeved on the screw rod and is engaged with the screw rod;
the right end of the meshing arm component is fixedly connected with a sliding seat, and the upper end and the lower end of the sliding seat are respectively sleeved on the sliding column and the guide rail;
the engagement arm assembly comprises an engagement arm, a marble and a spring; a concave cavity is formed in the bottom of the meshing arm, and a spring and a marble are sequentially arranged in the concave cavity from top to bottom; the marble is embedded in the concave cavity and can roll in the concave cavity;
the bottom of the marble is attached to a double-layer loop strip resistor;
the detection circuit is electrically connected with the double-layer loop strip-shaped resistor.
2. The syringe pump drive screw and engagement arm engagement detection device of claim 1, wherein: the double-layer loop strip resistor comprises a silver-plated conducting layer on the upper layer and a resistance carbon film coating on the lower layer, and a gap is formed between the silver-plated conducting layer and the resistance carbon film coating.
3. The syringe pump drive screw and engagement arm engagement detection device of claim 2, wherein: the right end of the sliding seat is connected with a push rod which is horizontally arranged.
4. The syringe pump drive screw and engagement arm engagement detection device according to any one of claims 1 to 3, wherein: the upper end of the meshing arm is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod and meshed with the screw rod.
5. The syringe pump drive screw and engagement arm engagement detection device of claim 4, wherein: the detection circuit is printed on a printed circuit board, and the printed circuit board is fixedly arranged on the frame body.
6. The syringe pump drive screw and engagement arm engagement detection device of claim 5, wherein: the marble is a round steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921300539.3U CN210293685U (en) | 2019-08-12 | 2019-08-12 | Injection pump transmission lead screw and meshing arm meshing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921300539.3U CN210293685U (en) | 2019-08-12 | 2019-08-12 | Injection pump transmission lead screw and meshing arm meshing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293685U true CN210293685U (en) | 2020-04-10 |
Family
ID=70062619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921300539.3U Expired - Fee Related CN210293685U (en) | 2019-08-12 | 2019-08-12 | Injection pump transmission lead screw and meshing arm meshing detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210293685U (en) |
-
2019
- 2019-08-12 CN CN201921300539.3U patent/CN210293685U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 Termination date: 20200812 |