CN214660753U - Double-wear-resistant pump sheet structure and infusion pump - Google Patents
Double-wear-resistant pump sheet structure and infusion pump Download PDFInfo
- Publication number
- CN214660753U CN214660753U CN202120823633.8U CN202120823633U CN214660753U CN 214660753 U CN214660753 U CN 214660753U CN 202120823633 U CN202120823633 U CN 202120823633U CN 214660753 U CN214660753 U CN 214660753U
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- CN
- China
- Prior art keywords
- sheet body
- wear
- pump
- driving
- dual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 title claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 8
- 238000010276 construction Methods 0.000 claims 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The utility model discloses a two wear-resisting pump piece structures and transfer pump, including the pump piece, the pump piece includes drive end and work end, the drive end is provided with the drive hole that is used for holding drive cam, the drive hole respectively is provided with a wear-resisting structure, two in one side that is close to the work end and keeps away from the one side of work end wear-resisting structure symmetry sets up. The utility model discloses a contact position in pump piece work end both sides all sets up wear-resisting structure, and compared unilateral wear-resisting structure among the prior art, further improved the wearability of pump piece, guaranteed the long-term of pump piece precision.
Description
Technical Field
The utility model relates to an transfer pump technical field especially relates to a two wear-resisting pump piece structures and transfer pump.
Background
The infusion pump adopts the working principle that the telescopic motion of the pump piece is utilized to generate extrusion force acting on an infusion tube to convey liquid medicine, the telescopic motion of the pump piece is generated by the action of a cam, the pump piece is driven to stretch and retract by the radial size change of the cam when the cam rotates, the pump piece is generally made of plastic materials, so the contact position of the pump piece and the cam can generate the abrasion condition under the reciprocating motion friction, the preset track of the pump piece is further influenced, the conveying precision of the liquid medicine is further influenced, and the service life of the infusion pump is shortened, in order to solve the problem, the utility model patent specification with the publication number of CN205235074U discloses an infusion pump piece assembly, the abrasion problem of the pump piece is solved by adding an abrasion-resistant structure on the pump piece, but the abrasion-resistant structure is only arranged on one side with larger stress of the pump piece, while the other side is under smaller stress, but the abrasion condition can also occur, the accuracy of the structure is affected and improvements are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point, provide a two wear-resisting pump piece structures and transfer pump to effectively solve the weak point that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a two wear-resisting pump piece structures, includes the pump piece, the pump piece includes drive end and work end, the drive end is provided with the drive hole that is used for holding the drive cam, the drive hole respectively is provided with a wear-resisting structure, two in one side that is close to the work end and keeps away from the one side of work end the wear-resisting structure symmetry sets up.
Furthermore, the wear-resistant structure comprises a first sheet body and a second sheet body which are oppositely arranged, the first sheet body and the second sheet body are connected through a third sheet body, the first sheet body is attached to the inner wall of the driving hole, the third sheet body is attached to the end face of the driving end, and the driving end is provided with an installation groove into which the second sheet body can be inserted;
the first sheet body and the second sheet body are connected with the driving end in a clamping mode.
Furthermore, the end parts of the first sheet body and the second sheet body are respectively provided with a first clamping part and a second clamping part, and the driving end is respectively provided with a first clamping groove and a second clamping groove in cooperation with the first clamping part and the second clamping part.
Further, the first clamping portion and the second clamping portion are formed by bending the end portions of the first sheet body and the second sheet body inwards respectively.
Furthermore, the mounting groove is internally provided with a supporting body at a position corresponding to the middle part of the driving hole, and the second sheet body is provided with a position yielding part matched with the supporting body.
Further, the driving end is provided with a first groove portion matched with the first sheet body.
Further, the surface of the first sheet body is level with the inner wall of the driving hole.
Further, the driving end is provided with a second groove portion in cooperation with the third sheet body.
Furthermore, the surface of the third sheet body is level with the end face of the driving end.
An infusion pump comprises the double-wear-resistant pump sheet structure.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses a contact position in pump piece work end both sides all sets up wear-resisting structure, and compared unilateral wear-resisting structure among the prior art, further improved the wearability of pump piece, guaranteed the long-term of pump piece precision.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a partial enlarged view of the portion A in FIG. 1
FIG. 3 is a schematic structural view of the wear-resistant structure shown in FIG. 2;
fig. 4 is a schematic perspective view of a second embodiment of the present invention;
FIG. 5 is a partial enlarged view of the portion B in FIG. 4;
FIG. 6 is a schematic structural view of the wear-resistant structure of FIG. 5;
fig. 7 is a schematic view of a wear-resistant structure according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
fig. 9 is a front view of the embodiment of the present invention;
FIG. 10 is a sectional view taken along line D-D of FIG. 9;
FIG. 11 is an enlarged view of a portion of FIG. 10 at E;
fig. 12 is a partial enlarged view of fig. 10 at F.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 12, the double wear-resistant pump blade structure according to this embodiment includes a pump blade 100, the pump blade 100 includes a driving end 110 and a working end 120, the driving end 110 is provided with a driving hole 111 for accommodating a driving cam, the driving hole 111 is provided with a wear-resistant structure 200 at each of one side close to the working end 120 and one side far away from the working end 120, the wear-resistant structures 200 at the two positions are symmetrically arranged, the position where the wear-resistant structure 200 is arranged is a position where the driving cam contacts with the inside of the driving hole 111, and the wear-resistant structures are arranged at both contact positions of the two sides.
As shown in fig. 7-8, the wear-resistant structure 200 includes a first blade 201 and a second blade 202 disposed opposite to each other, the first blade 201 and the second blade 202 are connected by a third blade 203, in a specific embodiment, the first blade 201 and the second blade 202 are disposed in parallel, the third blade 203 is disposed perpendicular to the first blade 201 and the second blade 202, in another specific embodiment, a small included angle is formed between the first blade 201 and the second blade 202, an end of the first blade 201 and an end of the second blade 202 close to the third blade 203 are farther away, and an end of the first blade and an end of the second blade far away from the third blade 203 are closer, so that a better clamping and fixing effect can be achieved with a working end during installation.
The first sheet 201, the second sheet 202 and the third sheet 203 can be formed by bending a single metal sheet, which is convenient for manufacturing and has high strength.
As shown in fig. 11-12, the first sheet body 201 is attached to the inner wall of the driving hole 111, the first sheet body 201 is contacted with the driving cam by replacing the driving end 110 made of plastic material, so as to prevent friction loss, and further prolong the service life of the pump sheet, the third sheet body 203 is attached to the end surface of the driving end 110, the driving end 110 is provided with an installation groove 112 for the second sheet body 202 to be inserted into, and the height of the installation groove 112 is greater than the thickness of the second sheet body 202.
As shown in fig. 8, 11 and 12, the first sheet 201 and the second sheet 202 are respectively provided with a first clamping portion 2011 and a second clamping portion 2021 at end portions of the first sheet 201 and the second sheet 202, the drive end 110 is respectively provided with a first clamping groove 113 and a second clamping groove 114 in cooperation with the first clamping portion 2011 and the second clamping portion 2021, and preferably, the first clamping portion 2011 and the second clamping portion 2021 are formed by bending end portions of the first sheet 201 and the second sheet 202 inward.
The mounting groove 112 is internally provided with a support body 115 at a position corresponding to the middle of the driving hole 111, the second sheet body 202 is provided with a yielding part 2022 in cooperation with the support body 115, and by arranging the support body 115, a completely hollow structure at a stressed part of the driving end 110 can be avoided, so that the strength and stability of the structure of the stressed part of the driving end 110 are ensured.
The driving end 110 is provided with a first groove 116 matching with the first sheet 201, and the surface of the first sheet 201 is flush with the inner wall of the driving hole 111.
The driving end 110 is provided with a second groove 117 matched with the third sheet body 203, and the surface of the third sheet body 203 is flush with the end surface of the driving end 110.
An infusion pump comprises the double-wear-resistant pump sheet structure.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a two wear-resisting pump piece structures, includes the pump piece, the pump piece includes drive end and work end, the drive end is provided with the drive hole that is used for holding drive cam, its characterized in that: the driving hole is respectively provided with a wear-resistant structure at one side close to the working end and one side far away from the working end, and the wear-resistant structures at the two positions are symmetrically arranged.
2. A dual wear pump blade construction as claimed in claim 1, wherein: the wear-resistant structure comprises a first sheet body and a second sheet body which are oppositely arranged, the first sheet body and the second sheet body are connected through a third sheet body, the first sheet body is attached to the inner wall of the driving hole, the third sheet body is attached to the end face of the driving end, and the driving end is provided with an installation groove into which the second sheet body can be inserted;
the first sheet body and the second sheet body are connected with the driving end in a clamping mode.
3. A dual wear pump vane arrangement as claimed in claim 2, wherein: the end parts of the first sheet body and the second sheet body are respectively provided with a first clamping part and a second clamping part, and the driving end is respectively provided with a first clamping groove and a second clamping groove in cooperation with the first clamping part and the second clamping part.
4. A dual wear pump blade construction as claimed in claim 3, wherein: the first clamping part and the second clamping part are formed by bending the end parts of the first sheet body and the second sheet body inwards respectively.
5. A dual wear pump vane arrangement as claimed in claim 2, wherein: the mounting groove is internally provided with a supporting body at a position corresponding to the middle part of the driving hole, and the second sheet body is provided with a position yielding part matched with the supporting body.
6. A dual wear pump vane arrangement as claimed in claim 2, wherein: the driving end is provided with a first groove portion in a matched mode with the first sheet body.
7. A dual wear pump blade construction as claimed in claim 6, wherein: the surface of the first sheet body is level with the inner wall of the driving hole.
8. A dual wear pump vane arrangement as claimed in claim 2, wherein: the driving end is provided with a second groove portion in cooperation with the third sheet body.
9. A dual wear pump blade construction as claimed in claim 8, wherein: the surface of the third sheet body is level with the end face of the driving end.
10. An infusion pump, characterized in that: comprising a double wear resistant pump blade construction according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823633.8U CN214660753U (en) | 2021-04-21 | 2021-04-21 | Double-wear-resistant pump sheet structure and infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823633.8U CN214660753U (en) | 2021-04-21 | 2021-04-21 | Double-wear-resistant pump sheet structure and infusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214660753U true CN214660753U (en) | 2021-11-09 |
Family
ID=78465270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120823633.8U Expired - Fee Related CN214660753U (en) | 2021-04-21 | 2021-04-21 | Double-wear-resistant pump sheet structure and infusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214660753U (en) |
-
2021
- 2021-04-21 CN CN202120823633.8U patent/CN214660753U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |