CN210068446U - Peristaltic pump with spring switch - Google Patents
Peristaltic pump with spring switch Download PDFInfo
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- CN210068446U CN210068446U CN201920677375.XU CN201920677375U CN210068446U CN 210068446 U CN210068446 U CN 210068446U CN 201920677375 U CN201920677375 U CN 201920677375U CN 210068446 U CN210068446 U CN 210068446U
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- sliding block
- upper sliding
- spring switch
- pump
- rotating shaft
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Abstract
The utility model discloses a peristaltic pump with a spring switch, which comprises a pump shell, a roller component, an elastic hose and a stepping motor, wherein the pump shell comprises an upper slide block and a fixed seat, and the joint of the fixed seat and the upper slide block is provided with a hose inlet and a hose outlet; the upper sliding block slides up and down relative to the fixed seat; and a spring switch for controlling the upper sliding block to slide up and down is arranged on the upper sliding block, and when the upper sliding block moves to an upper limit position or a lower limit position, the pump shell is completely closed or opened, and the spring switch is locked. Peristaltic pump with spring switch, spring switch not only has switch function, still has the locking function when opening and closing, avoids the pump case to open automatically and closes, be convenient for when the pump case is opened maintain with change peristaltic pump inner structure, the peristaltic pump is difficult loose when the pump case is closed, anti falling ability reinforce.
Description
Technical Field
The utility model relates to a fluid pump technical field especially relates to a peristaltic pump with spring switch.
Background
A peristaltic pump is a positive displacement pump, primarily used for the delivery and dispensing of fluids. The pump head mainly comprises a pump shell, a roller assembly, an elastic hose and other components. When the peristaltic pump shell works, the roller rotates to continuously extrude the elastic hose, so that the purpose of conveying fluid is achieved. In order to install the elastic hose conveniently, the pump shell is usually made into a split structure, the pump shell structure consisting of the upper sliding block and the fixed seat is small in size and attractive in appearance, and is widely applied to the field of medical treatment, the upper sliding block slides up and down under the action of the eccentric wheel to achieve the effect of closing and opening the pump shell, the eccentric wheel is located inside the pump shell, whether the pump shell is completely closed can be determined only by a mark beside a rotating handle located outside the pump shell, errors easily exist in marking and visual observation, the phenomenon that the pump shell is not closed in place easily occurs, the eccentric wheel easily slips, the upper sliding block is automatically opened, the eccentric wheel is easily rotated due to shaking of the peristaltic pump, the upper sliding block is opened, and therefore an additional fixing structure is needed to fix the rotating shaft, the.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the peristaltic pump among the prior art and have the pump case to close not in place, cause the technical problem of automatic opening easily, the utility model provides a peristaltic pump that is equipped with spring switch solves above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is: a peristaltic pump with a spring switch, comprising: the pump comprises a pump shell, a pump body and a pump body, wherein the pump shell comprises an upper sliding block and a fixed seat, and a hose inlet and a hose outlet are arranged at the joint of the fixed seat and the upper sliding block; the roller assembly is positioned in the pump shell, and a hose channel is arranged between the roller assembly and the upper sliding block; an elastic hose entering the pump housing from the hose inlet and extending out of the pump housing from the hose outlet after passing through the hose passage; the stepping motor is positioned outside the pump shell, the shell of the stepping motor is fixedly connected with the fixed seat, and the output shaft of the stepping motor is connected with the roller component; the upper sliding block slides up and down relative to the fixed seat; and a spring switch for controlling the upper sliding block to slide up and down is arranged on the upper sliding block, and when the upper sliding block moves to an upper limit position or a lower limit position, the pump shell is completely closed or opened, and the spring switch is locked.
If the upper sliding block is positioned at the upper half part of the fixed seat, the pump shell is closed when the upper sliding block moves to the lower limit position, and if the upper sliding block is positioned at the lower half part of the fixed seat, the pump shell is closed when the upper sliding block moves to the upper limit position; the spring switch not only has a switch function, but also has a locking function when being opened and closed, so that the pump shell is prevented from being automatically opened and closed, the internal structure of the peristaltic pump is convenient to maintain and replace when the pump shell is opened, the peristaltic pump is not easy to loosen when the pump shell is closed, and the anti-falling capability is strong.
Further, the spring switch includes: the side wall of the rotating shaft is provided with a cutting surface, and the rotating shaft penetrates through the upper sliding block and is connected with the upper sliding block in a rotating mode; the eccentric wheel is fixed at one end of the rotating shaft and positioned on the inner side of the upper sliding block, and the eccentric wheel extends into the fixed seat; the rotating handle is fixed at the other end of the rotating shaft and is positioned on the outer side of the upper sliding block; one end of the special-shaped spring is fixed with the upper sliding block, the other end of the special-shaped spring is clamped on the rotating shaft, and the rotating shaft rotates in the special-shaped spring; the point of the edge of the eccentric wheel farthest from the center of the rotating shaft is a point a, and a connecting line of the point a and the center of the rotating shaft is vertical to the cutting surface; the special-shaped spring can be clamped on the cutting surface. When the special-shaped spring is clamped on the cutting surface, the spring switch is in a locking state; when the profile spring leaves the cutting surface, the spring switch is in an operating state.
The rotating handle is rotated to enable the point a to continuously extrude the two opposite side walls of the limiting groove, so that the upper sliding block can slide up and down, and the effect of continuously opening and closing the pump shell is achieved.
Further, the special-shaped spring comprises a connecting portion, a circular ring sleeving portion and a U-shaped clamping portion, the circular ring sleeving portion and the U-shaped clamping portion are located at two ends of the connecting portion, the circular ring sleeving portion and the upper sliding block are fixedly sleeved, and the U-shaped clamping portion is clamped on the rotating shaft.
Preferably, the cutting surface is a plane cut perpendicular to the axial direction of the rotating shaft.
Preferably, the number of the cutting surfaces is two, and the two cutting surfaces are symmetrically arranged relative to the center of the rotating shaft.
Preferably, a limit groove is formed in the side face, opposite to the upper sliding block, of the fixing seat, and the eccentric wheel is located in the limit groove.
Preferably, a fixing column is arranged on the inner side of the upper sliding block, and the circular ring sleeving part is sleeved on the fixing column and is fixed through screw extrusion.
Furthermore, the fixed seat comprises a base and a base, the base is positioned below the upper sliding block, and the hose inlet and the hose outlet are positioned at the connecting part of the upper sliding block and the base; one side of the base is fixedly connected with the base and the upper sliding block, and the other side of the base is fixedly connected with the stepping motor.
Further, the roller assembly comprises an I-shaped roller support, a plurality of mandrels are arranged on the periphery of the roller support in an array mode, each mandrel is sleeved with a roller, and an output shaft of the stepping motor is connected with the center of the roller support.
Further, be equipped with the track groove on the base, the other slip strip that is equipped with in track groove, go up the slider surface be equipped with to the slide bar that the track groove stretches out, the slide bar through the slip card with the slip strip is connected, and follows the slip strip reciprocates.
Preferably, the two ends of the roller bracket are respectively sleeved and connected with the wall surface of the fixing seat, and a bearing is arranged at the joint.
The utility model has the advantages that:
(1) peristaltic pump with spring switch, spring switch not only has switch function, still has the locking function when opening and closing, avoids the pump case to open automatically and closes, be convenient for when the pump case is opened maintain with change peristaltic pump inner structure, the peristaltic pump is difficult loose when the pump case is closed, anti falling ability reinforce.
(2) Peristaltic pump with spring switch, when the top shoe was opened or was closed and accomplish, can send "click" sound or user's rotatory axis of rotation and have the insensitive, need not to be through observing closing and opening on the top shoe and mark the discernment, the on-off state is more accurate, avoids producing the automatic phenomenon of opening of top shoe.
(3) Peristaltic pump, when the pump case is in closed or when opening the state completely, dysmorphism spring card is located on the cutting face, need have the effect of external force to enable the axis of rotation and continue to rotate this moment to can avoid the eccentric wheel to rotate, can not take off because of rocking of peristaltic pump and take off, anti falling ability reinforce, whole life improves.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a perspective view of an embodiment of a peristaltic pump with a spring switch according to the present invention (the flexible tube is not shown);
FIG. 2 is a rear view of an embodiment of the peristaltic pump with spring switch of the present invention (the flexible hose is not shown);
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of a pump housing closed state of an embodiment of the peristaltic pump with a spring switch of the present invention (the flexible tube is not shown);
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 7 is a schematic view of an embodiment of a peristaltic pump with a spring switch according to the present invention, with the pump housing open (flexible hose not shown);
FIG. 8 is a cross-sectional view taken along line D-D of FIG. 7;
FIG. 9 is a schematic diagram of a spring switch of an embodiment of the peristaltic pump with a spring switch of the present invention;
FIG. 10 is a side view of a spring switch of an embodiment of the peristaltic pump with a spring switch of the present invention;
FIG. 11 is a sectional view taken along line E-E of FIG. 10;
fig. 12 is a schematic view of the installation structure of the spring switch on the upper sliding cover in the peristaltic pump with the spring switch according to the present invention;
FIG. 13 is a sectional view taken along line F-F of FIG. 12;
fig. 14 is a schematic structural view of a roller assembly of an embodiment of the peristaltic pump with spring switch according to the present invention.
In the figure, 1, a rotating shaft, 1-1, a cutting surface, 2, an eccentric wheel, 3, a rotating handle, 4, a special-shaped spring, 4-1, a connecting part, 4-2, a circular ring sleeving part, 4-3, a U-shaped clamping part, 5, an upper sliding block, 6, a base, 7, a base, 8, a hose inlet, 9, a hose outlet, 10, a roller component, 10-1, a roller bracket, 10-2, a mandrel, 10-3, a roller, 11, a hose channel, 12, an elastic hose, 13, a stepping motor, 14, a fixed column, 15, a limiting groove, 16, a spring switch, 17, a track groove, 18, a sliding strip, 19, a sliding rod, 20, a sliding clamping piece, 21, a screw, 22 and a bearing.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 9 to 13, the spring switch 16 has the following structure: the cutting device comprises a rotating shaft 1, wherein the side wall of the rotating shaft 1 is provided with a cutting surface 1-1, and the rotating shaft 1 penetrates through an upper sliding block 5 and is rotatably connected with the upper sliding block 5; the eccentric wheel 2 is circular in cross section, is fixed at one end of the rotating shaft 1 and is positioned on the inner side of the upper sliding block 5, and the eccentric wheel 2 extends into the fixed seat; a rotating handle 3 fixed at the other end of the rotating shaft 1 in a threaded connection mode and positioned outside the upper sliding block 5; one end of the special-shaped spring 4 is fixed with the upper sliding block 5, the other end of the special-shaped spring 4 is clamped on the rotating shaft 1, and the rotating shaft 1 rotates in the special-shaped spring 4; the point of the edge of the eccentric wheel 2 farthest from the center of the rotating shaft 1 is a point a, and a connecting line of the point a and the center of the rotating shaft 1 is vertical to the cutting surface 1-1; the special-shaped spring 4 can be clamped on the cutting surface 1-1. When the special-shaped spring 4 is clamped on the cutting surface 1-1, the spring switch 16 is in a locking state; when the shaped spring 4 leaves the cutting surface 1-1, the spring switch 16 is in an operating state. The running state refers to that the rotating shaft 1 is in the process of rotating, and the locking state refers to that the rotating shaft 1 stops rotating.
The cutting surface 1-1 is a front and back through surface cut out from the side wall of the rotating shaft 1, and can be a plane or a curved surface, the joint of the cutting surface 1-1 and the circumferential side wall of the rotating shaft 1 is provided with an edge, when the special-shaped spring 4 enters or leaves the cutting surface 1-1, a 'click' sound can be given out, a user can determine whether the rotating shaft 1 is locked in place according to the sound, or the locking in place is judged according to the click feeling generated at the moment that the special-shaped spring 4 enters the cutting surface 1-1, and when the locking is finished, the special-shaped spring 4 is clamped on the cutting surface 1-1, the rotating shaft 1 can be continuously rotated only by external force, the rotating shaft 1 is in a locking state, further, the rotation of the eccentric wheel 2 can be avoided, and.
The rotating handle 3 is rotated to enable the point a to continuously extrude the two opposite side walls of the limiting groove 15, so that the upper sliding block 5 moves up and down, and the effect of continuously opening and closing the pump shell is achieved. When the point a is contacted with the lower side wall of the limit groove 15, the special-shaped spring 4 is clamped on the cutting surface 1-1, and the pump shell is in an opening and locking state (shown in figure 8); when the point a contacts with the side wall of the limit groove 15, the special-shaped spring 4 is clamped on the cutting surface 1-1, and the pump shell is in a closed locking state (shown in figure 6).
As shown in fig. 11, the structure of the shaped spring 4 is: the connecting shaft comprises a connecting portion 4-1, a ring sleeving portion 4-2 and a U-shaped clamping portion 4-3, wherein the ring sleeving portion 4-2 and the U-shaped clamping portion 4-3 are located at two ends of the connecting portion 4-1, the ring sleeving portion 4-2 is fixedly sleeved with an upper sliding block 5, and the U-shaped clamping portion 4-3 is clamped on a rotating shaft 1. The circular ring structure outside the circular ring sleeving part 4-2 can increase the contact area and ensure the fixation to be firm; the U-shaped clamping portion 4-3 can avoid blocking the rotation of the rotating shaft 1 when the rotating shaft 1 is clamped. The connecting portion 4-1 is preferably a straight rod, occupied space is reduced, when the rotating shaft 1 rotates, the U-shaped clamping portion 4-3 is in contact with the side wall of the rotating shaft 1, in order to enable clamping to be more stable when fixing is completed, the bending mode of the U-shaped clamping portion 4-3 is preferably the same as that of the cutting face 1-1, namely the U-shaped clamping portion 4-3 is continuously in contact with the cutting face 1-1 when clamped on the cutting face 1-1, preferably, the cutting face 1-1 is a plane which is cut in the direction perpendicular to the axis of the rotating shaft 1, and the special-shaped spring 4 is perpendicular to the axis of the rotating shaft 1.
Preferably, two cutting surfaces 1-1 are arranged, the two cutting surfaces 1-1 are symmetrically arranged relative to the center of the rotating shaft 1, and both arms of the U-shaped clamping portion 4-3 are clamped in the cutting surfaces 1-1, so that the locking effect is better.
In embodiment 2, on the basis of embodiment 1, a limit groove 15 (as shown in fig. 5 and 8) is disposed on a side surface of the fixing seat opposite to the upper sliding block 5, the eccentric wheel 2 is located in the limit groove 15, the limit groove 15 is a rectangular frame structure, and when the eccentric wheel 2 rotates, only upper and lower side walls of the limit groove 15 are pressed.
The preferable fixing mode of the special-shaped spring 4 and the upper sliding block 5 is that as shown in fig. 13, a fixing column 14 is arranged on the inner side of the upper sliding block 5, and the annular sleeving part 4-2 is sleeved on the fixing column 14 and is extruded and fixed through a screw 21.
In order to ensure that the upper sliding block 5 always slides along the vertical direction of the surface of the base 7, as shown in fig. 2, 3 and 5, preferably, a rail groove 17 is arranged on the base 7, a sliding strip 18 is arranged beside the rail groove 17, a sliding rod 19 extending towards the rail groove 17 is arranged on the surface of the upper sliding block 5, the sliding rod 19 is connected with the sliding strip 18 through a sliding card 20, the sliding card 20 is fixed with the sliding rod 19, the sliding card 20 is attached to the sliding strip 18 and moves up and down along the sliding strip 18, and the sliding card 20 ensures that the upper sliding block 5 is always connected with the base 7.
The specific structure of the roller assembly 10 is as follows: as shown in figure 14, the device comprises an I-shaped roller support 10-1, a plurality of mandrels 10-2 are arranged on the periphery of the roller support 10-1 in a circumferential array mode, a roller 10-3 is sleeved on each mandrel 10-2, and an output shaft of a stepping motor 13 is connected with the center of the roller support 10-1. The stepping motor 13 drives the roller bracket 10-1 to rotate, the rollers 10-3 on the roller bracket 10-1 rotate around the center of the roller bracket 10-1 to sequentially extrude the elastic hoses 12 to realize fluid conveying, and each roller 10-3 can rotate around the mandrel 10-2 to avoid hard friction with the hoses.
In order to avoid the rolling wheel assembly 10 from shaking, as shown in fig. 3, preferably, two ends of the rolling wheel bracket 10-1 are respectively sleeved and connected with the wall surface of the fixing seat, and a bearing 22 is disposed at the connection position.
In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A peristaltic pump with a spring switch, comprising:
the pump comprises a pump shell, wherein the pump shell comprises an upper sliding block (5) and a fixed seat, and a hose inlet (8) and a hose outlet (9) are arranged at the joint of the fixed seat and the upper sliding block (5);
a roller assembly (10) positioned inside the pump shell, wherein a hose channel (11) is arranged between the roller assembly (10) and the upper sliding block (5);
an elastic hose (12) entering the pump housing from the hose inlet (8) and extending out of the pump housing from the hose outlet (9) after passing through the hose passage (11);
the stepping motor (13) is positioned outside the pump shell, the shell of the stepping motor (13) is fixedly connected with the fixed seat, and the output shaft of the stepping motor (13) is connected with the roller assembly (10);
the upper sliding block (5) slides up and down relative to the fixed seat; and a spring switch (16) for controlling the upper sliding block (5) to slide up and down is arranged on the upper sliding block (5), when the upper sliding block (5) moves to an upper limit position or a lower limit position, the pump shell is completely closed or opened, and the spring switch (16) is locked.
2. Peristaltic pump equipped with a spring switch, according to claim 1, characterized in that said spring switch (16) comprises:
the side wall of the rotating shaft (1) is provided with a cutting surface (1-1), and the rotating shaft (1) penetrates through the upper sliding block (5) and is rotatably connected with the upper sliding block (5);
the eccentric wheel (2) is fixed at one end of the rotating shaft (1) and is positioned on the inner side of the upper sliding block (5), and the eccentric wheel (2) extends into the fixed seat;
the rotating handle (3) is fixed at the other end of the rotating shaft (1) and is positioned on the outer side of the upper sliding block (5);
one end of the special-shaped spring (4) is fixed with the upper sliding block (5), the other end of the special-shaped spring (4) is clamped on the rotating shaft (1), and the rotating shaft (1) rotates in the special-shaped spring (4);
the point of the edge of the eccentric wheel (2) farthest from the center of the rotating shaft (1) is a point a, and a connecting line of the point a and the center of the rotating shaft (1) is vertical to the cutting surface (1-1); the special-shaped spring (4) can be clamped on the cutting surface (1-1).
3. A peristaltic pump with a spring switch as set forth in claim 2, wherein: the special-shaped spring (4) comprises a connecting portion (4-1), a circular ring sleeving portion (4-2) and a U-shaped clamping portion (4-3), the circular ring sleeving portion (4-2) and the U-shaped clamping portion (4-3) are located at two ends of the connecting portion (4-1), the circular ring sleeving portion (4-2) is fixedly sleeved with an upper sliding block (5), and the U-shaped clamping portion (4-3) is clamped on the rotating shaft (1).
4. A peristaltic pump with a spring switch as set forth in claim 2, wherein: the cutting surface (1-1) is a plane which is perpendicular to the axial direction of the rotating shaft (1) for cutting.
5. A peristaltic pump with a spring switch as set forth in claim 2, wherein: two cutting surfaces (1-1) are arranged, and the two cutting surfaces (1-1) are symmetrically arranged relative to the center of the rotating shaft (1).
6. A peristaltic pump with a spring switch as set forth in claim 2, wherein: and a limiting groove (15) is formed in the side face, opposite to the upper sliding block (5), of the fixing seat, and the eccentric wheel (2) is located in the limiting groove (15).
7. A peristaltic pump with a spring switch as set forth in claim 3, wherein: a fixing column (14) is arranged on the inner side of the upper sliding block (5), and the circular ring sleeving part (4-2) is sleeved on the fixing column (14) and is extruded and fixed through a screw (21).
8. A peristaltic pump with a spring switch as set forth in claim 2, wherein: the fixed seat comprises a base (6) and a base (7), the base (6) is positioned below the upper sliding block (5), and the hose inlet (8) and the hose outlet (9) are positioned at the connecting part of the upper sliding block (5) and the base (6); base (7) one side simultaneously with base (6) and top shoe (5) fixed connection, the opposite side with step motor (13) fixed connection.
9. A peristaltic pump with a spring switch as set forth in claim 1, wherein: the roller assembly (10) comprises an I-shaped roller support (10-1), a plurality of mandrels (10-2) are arranged on the periphery of the roller support (10-1) in a circumferential array mode, a roller (10-3) is sleeved on each mandrel (10-2), and an output shaft of a stepping motor (13) is connected with the center of the roller support (10-1).
10. A peristaltic pump with a spring switch as set forth in claim 8, wherein: be equipped with track groove (17) on base (7), the other slip strip (18) that is equipped with of track groove (17), slider (5) surface is equipped with to slide bar (19) that track groove (17) stretches out, slide bar (19) through slip card (20) with slip strip (18) are connected, and follow slip strip (18) reciprocate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920677375.XU CN210068446U (en) | 2019-05-13 | 2019-05-13 | Peristaltic pump with spring switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920677375.XU CN210068446U (en) | 2019-05-13 | 2019-05-13 | Peristaltic pump with spring switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068446U true CN210068446U (en) | 2020-02-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920677375.XU Active CN210068446U (en) | 2019-05-13 | 2019-05-13 | Peristaltic pump with spring switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068446U (en) |
Cited By (1)
| 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 |
-
2019
- 2019-05-13 CN CN201920677375.XU patent/CN210068446U/en active Active
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 |
| 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 |
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