CN211584538U - Medical roller press pump adopting bevel-tooth lead screw adjusting structure - Google Patents
Medical roller press pump adopting bevel-tooth lead screw adjusting structure Download PDFInfo
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- CN211584538U CN211584538U CN201921859809.4U CN201921859809U CN211584538U CN 211584538 U CN211584538 U CN 211584538U CN 201921859809 U CN201921859809 U CN 201921859809U CN 211584538 U CN211584538 U CN 211584538U
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- rotating shaft
- screw rod
- knob
- rolling
- main rotating
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Abstract
The utility model discloses a medical roller pump adopting an umbrella-tooth lead screw adjusting structure, which comprises a horseshoe-shaped pump shell, a main rotating shaft, a roller pressing block, an adjusting knob, a knob shaft and a transmission lead screw; the main rotating shaft is arranged in the horseshoe-shaped pump shell, the rolling pressing blocks are two in number, and the two rolling pressing blocks are symmetrically embedded in the main rotating shaft; the transmission screw rod is transversely arranged in the main rotating shaft, and two ends of the transmission screw rod are respectively in threaded fit with the thread sleeves of the rolling blocks; the adjusting knob is positioned at the top of the main rotating shaft and connected with the top of the knob shaft, the bottom of the knob shaft is in transmission fit with the transmission screw rod through a pair of bevel gears, the knob shaft drives the transmission screw rod to rotate through the bevel gears, and then the compression amount of the rolling block on the infusion hose is adjusted, so that stepless adjustment is realized, and the adjustment precision is enlarged.
Description
Technical Field
The utility model belongs to the technical field of medical device, concretely relates to adopt medical roller pump of bevel gear lead screw adjustment structure.
Background
The roller pump is adopted to convey and collect blood and has the advantages of simple operation, low cost and the like, so the roller pump is widely applied to blood pump systems of medical instruments such as a blood recovery machine, an extracorporeal circulation machine, hemodialysis and the like.
The rolling blocks of the rolling pump in China are adjustable in a stepped mode before, and the accurate adjustment of blood flow is seriously influenced, so that the realization of stepless adjustment of the pressing blocks is a technical problem which is urgently needed to be broken through.
At present, although some foreign roller pumps realize stepless regulation, the screw rod/screw rod is used for driving the roller pressing block, and then the compression amount of the roller pressing block on the infusion hose is regulated, so that the flow is regulated. But still has disadvantages:
1. the method is practiced by rubbing the lead screw with the thumb, so that great effort is required for the thumb, and the method is difficult to finish if a perfusionist is thin and small.
2. The lead screw is directly twisted, so that the rotating amplitude of the lead screw is large, and the adjusting precision of the rolling block is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a medical roller pump who adopts bevel gear lead screw adjustment structure.
The utility model discloses a realize through following technical scheme:
a medical roller pump adopting an umbrella-tooth lead screw adjusting structure comprises a horseshoe-shaped pump shell, a main rotating shaft, a roller pressing block, an adjusting knob, a knob shaft and a transmission lead screw;
the main rotating shaft is arranged in the horseshoe-shaped pump shell, the rolling pressing blocks are two in number, and the two rolling pressing blocks are symmetrically embedded in the main rotating shaft; the rolling block consists of a rolling wheel, a rotating shaft, an installation block, a thread sleeve and a bolt, the installation block is slidably installed in the main rotating shaft, the rolling wheel is sleeved on the rotating shaft through a bearing, the rotating shaft is vertically installed on the outer side of the installation block, the thread sleeve is transversely embedded in the installation block, and the thread sleeve and the installation block are fixed through the bolt;
the transmission screw rod is transversely arranged in the main rotating shaft, and two ends of the transmission screw rod are respectively in threaded fit with the thread sleeves of the rolling blocks; the screw threads at the two ends of the transmission screw rod are reverse, and when the transmission screw rod rotates, the two screw sleeves can be driven to synchronously move inwards or outwards;
the adjusting knob is positioned at the top of the main rotating shaft and connected with the top of the knob shaft, the knob shaft is vertically installed with the transmission screw rod, the bottom of the knob shaft is provided with a first bevel gear, the transmission screw rod is provided with a second bevel gear, and the first bevel gear at the bottom of the knob shaft is meshed with the second bevel gear on the transmission screw rod.
In above-mentioned technical scheme, be provided with the deflector roll on main pivot outer wall, the deflector roll radially sets up along main pivot, and the deflector roll divide into two-layer from top to bottom, and every layer is along a plurality of deflector rolls of main pivot circumference equidistant arrangement.
In the technical scheme, the horseshoe-shaped pump shell is also provided with a pump end cover, and the pump end cover is hinged to the horseshoe-shaped pump shell and can be opened and closed.
In the technical scheme, the hoof opening side of the horseshoe-shaped pump shell is provided with the infusion hose inlet and the infusion hose outlet, and when the horseshoe-shaped pump shell is used, the infusion hose penetrates through the inlet and then penetrates out of the outlet along the inner wall of the horseshoe-shaped pump shell.
In the above technical scheme, a transmission chain wheel or a gear is installed at the bottom of the main rotating shaft and is used for being connected with the driving motor.
In the above technical scheme, the mounting hole for mounting the thread bush is formed in the inner side of the mounting block, and the thread bush is mounted in the mounting hole.
In the technical scheme, the rotating shaft is a hollow shaft, so that the blood pump can be continuously rotated by hands of a person through the crank when the blood pump is unpowered.
The utility model discloses an advantage and beneficial effect do:
1. the utility model discloses an adjustment mode of adjust knob rotation type, adjust knob has covered the naked part of regulation rotating device, prevents that the foreign matter from getting into and causing the damage.
2. The utility model discloses drive the knob axle by adjust knob, the knob axle passes through the bevel gear drive transmission lead screw and rotates, and then adjusts the compression capacity of rolling the briquetting to the infusion hose, has not only realized infinitely variable control, has enlarged the precision of regulation moreover.
3. The utility model discloses a diameter of adjust knob is a lot bigger than the diameter of traditional dish of rubbing with the hands to the effect of lever increases, makes any operating personnel all can easily accomplish the operation.
Drawings
Fig. 1 is a schematic perspective view of the medical roller pump of the present invention.
Fig. 2 is a plan view of the medical roller pump of the present invention.
Fig. 3 is a sectional view of the medical roller pump of the present invention.
Fig. 4 is a sectional view of the medical roller pump of the present invention.
Wherein:
1: horseshoe-shaped pump case, 2: main rotating shaft, 3: rolling and pressing block, 4: adjusting knob, 5: knob shaft, 6: transmission screw rod, 7: drive sprocket, 8: guide rollers, 9: pump end cap, 31: rolling wheel, 32: rotating shaft, 33: mounting block, 34: thread bushing, 35: bolt, 51: first bevel gear, 61: a second bevel gear.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Example one
A medical roller pump adopting an umbrella-tooth lead screw adjusting structure comprises a horseshoe-shaped pump shell 1, a main rotating shaft 2, a rolling block 3, an adjusting knob 4, a knob shaft 5 and a transmission lead screw 6.
An inlet a and an outlet b of the transfusion hose are arranged on one side of the hoof opening of the horseshoe-shaped pump shell, and when the transfusion hose is used, the transfusion hose c penetrates through the inlet a and then penetrates out of the outlet b along the inner wall of the horseshoe-shaped pump shell.
The main rotating shaft 2 is arranged in the horseshoe-shaped pump shell 1, and a transmission chain wheel 7 or a gear is arranged at the bottom of the main rotating shaft and is used for being connected with a driving motor.
The rolling pressing blocks 3 are two in number, and the two rolling pressing blocks 3 are symmetrically embedded in the main rotating shaft 2. The rolling block 3 is composed of a rolling wheel 31, a rotating shaft 32 (the rotating shaft 32 is a hollow shaft), an installation block 33, a thread bushing 34 and a bolt 35, the installation block 33 is slidably installed in the main rotating shaft (two corresponding installation cavities are arranged on the main rotating shaft and used for installation), the rolling wheel 31 is sleeved on the rotating shaft 32 through a bearing 36, the rotating shaft 32 is vertically installed on the outer side of the installation block 33, the thread bushing 34 is transversely embedded in the installation block 33 (an installation hole for installing the thread bushing is formed in the inner side of the installation block 33, the thread bushing 34 is installed in the installation hole), and the thread bushing 34 and the installation block 33 are fixed through the bolt 35.
The transmission screw rod 6 is transversely arranged in the main rotating shaft 2, and two ends of the transmission screw rod 6 are respectively in threaded fit with the screw sleeve 34 of the rolling block; the threads on the two ends of the drive screw are reversed, and when the drive screw rotates, the two thread sleeves 34 can be driven to synchronously move inwards or outwards.
The adjusting knob 4 is positioned at the top of the main rotating shaft 2, the adjusting knob 4 is connected with the top of the knob shaft 5, the knob shaft 5 is vertically installed with the transmission screw rod 6, the first bevel gear 51 is arranged at the bottom of the knob shaft 4, the second bevel gear 61 is arranged on the transmission screw rod 6, the first bevel gear 51 at the bottom of the knob shaft is meshed with the second bevel gear 61 on the transmission screw rod, the driving of the adjusting knob, the knob shaft, the transmission screw rod and the rolling block is realized, and further the flow of the rolling pump is adjusted.
Example two
On the basis of the first embodiment, furthermore, the guide rollers 8 are arranged on the outer wall of the main rotating shaft, the guide rollers are radially arranged along the main rotating shaft and are divided into an upper layer and a lower layer, 4 guide rollers are arranged on each layer at equal intervals along the circumference of the main rotating shaft, during operation, the infusion hose is positioned between the upper layer and the lower layer of guide rollers, the infusion hose is erected to a preset position through the guide rollers, and the rolling column is not allowed to press the infusion pipeline out of the pump head.
EXAMPLE III
On the basis of the first embodiment, a pump end cover 9 is further arranged on the horseshoe-shaped pump shell, and the pump end cover is hinged to the horseshoe-shaped pump shell and can be opened and closed to prevent foreign matters from entering and damaging the pump end cover.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (7)
1. The utility model provides an adopt bevel gear lead screw to adjust medical roller press pump of structure which characterized in that: comprises a horseshoe-shaped pump shell, a main rotating shaft, a rolling block, an adjusting knob, a knob shaft and a transmission screw rod;
the main rotating shaft is arranged in the horseshoe-shaped pump shell, the rolling pressing blocks are two in number, and the two rolling pressing blocks are symmetrically embedded in the main rotating shaft; the rolling block consists of a rolling wheel, a rotating shaft, an installation block, a thread sleeve and a bolt, the installation block is slidably installed in the main rotating shaft, the rolling wheel is sleeved on the rotating shaft through a bearing, the rotating shaft is vertically installed on the outer side of the installation block, the thread sleeve is transversely embedded in the installation block, and the thread sleeve and the installation block are fixed through the bolt;
the transmission screw rod is transversely arranged in the main rotating shaft, and two ends of the transmission screw rod are respectively in threaded fit with the thread sleeves of the rolling blocks; the screw threads at the two ends of the transmission screw rod are reverse, and when the transmission screw rod rotates, the two screw sleeves can be driven to synchronously move inwards or outwards;
the adjusting knob is positioned at the top of the main rotating shaft and connected with the top of the knob shaft, the knob shaft is vertically installed with the transmission screw rod, the bottom of the knob shaft is provided with a first bevel gear, the transmission screw rod is provided with a second bevel gear, and the first bevel gear at the bottom of the knob shaft is meshed with the second bevel gear on the transmission screw rod.
2. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: be provided with the deflector roll on main pivot outer wall, the deflector roll radially sets up along main pivot, and the deflector roll divide into two-layer from top to bottom, and every layer is along a plurality of deflector rolls of main pivot circumference equidistant arrangement.
3. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: a pump end cover is further arranged on the horseshoe-shaped pump shell, and the pump end cover is hinged to the horseshoe-shaped pump shell and can be opened and closed.
4. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: when the U-shaped pump shell is used, the infusion hose penetrates through the inlet and then penetrates out of the outlet along the inner wall of the U-shaped pump shell.
5. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: and a transmission chain wheel or a gear is arranged at the bottom of the main rotating shaft and is used for being connected with a driving motor.
6. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: the inner side of the mounting block is provided with a mounting hole for mounting a thread sleeve, and the thread sleeve is mounted in the mounting hole.
7. The medical roller press pump adopting the bevel lead screw adjusting structure as claimed in claim 1, wherein: the rotating shaft is a hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859809.4U CN211584538U (en) | 2019-10-31 | 2019-10-31 | Medical roller press pump adopting bevel-tooth lead screw adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859809.4U CN211584538U (en) | 2019-10-31 | 2019-10-31 | Medical roller press pump adopting bevel-tooth lead screw adjusting structure |
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| Publication Number | Publication Date |
|---|---|
| CN211584538U true CN211584538U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921859809.4U Active CN211584538U (en) | 2019-10-31 | 2019-10-31 | Medical roller press pump adopting bevel-tooth lead screw adjusting structure |
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| CN (1) | CN211584538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189557A (en) * | 2023-09-18 | 2023-12-08 | 江苏赛腾医疗科技有限公司 | Rolling pump adjusting device with self-locking mechanism and rolling pump |
| CN117189559A (en) * | 2023-10-09 | 2023-12-08 | 江苏赛腾医疗科技有限公司 | Nonlinear adjusting device of rolling pump and rolling pump |
-
2019
- 2019-10-31 CN CN201921859809.4U patent/CN211584538U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189557A (en) * | 2023-09-18 | 2023-12-08 | 江苏赛腾医疗科技有限公司 | Rolling pump adjusting device with self-locking mechanism and rolling pump |
| CN117189557B (en) * | 2023-09-18 | 2024-04-26 | 上海赛腾源研医疗科技有限公司 | Rolling pump adjusting device with self-locking mechanism and rolling pump |
| CN117189559A (en) * | 2023-10-09 | 2023-12-08 | 江苏赛腾医疗科技有限公司 | Nonlinear adjusting device of rolling pump and rolling pump |
| CN117189559B (en) * | 2023-10-09 | 2024-04-12 | 上海赛腾源研医疗科技有限公司 | Nonlinear adjusting device of rolling pump and rolling pump |
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