CN205503441U - Tube pump - Google Patents

Abstract

The utility model provides a can prevent rotary part and manage the tube pump who drops, tube pump includes: the base that has a tip open -ended tube -shape portion, pipe along the surface form inner peripheral surface configuration of the cylinder of the tube -shape portion of base, rotary part, it disposes with the inner peripheral surface in the tube -shape portion of base with one heart, the roller, it can be supported by rotary part with rotating, yi bian push the border inner peripheral surface rotation of elasticity pipe between this roller and inner peripheral surface, the lid, its open -ended mode detachably with the tube -shape portion of closed base installs in the base, and drive unit, it carries out rotary driving to rotary part, and in this structure, the lid has a tube -shape portion with the tube -shape portion gomphosis of base, and the tube -shape portion of base and the tube -shape portion of lid are partly at least separately to be formed to the non - cylindricly, in the tube -shape portion of base, is formed with first block portion at the relative face of tube -shape portion with the lid, with first block portion block when being formed with in the tube -shape portion gomphosis with the base in the tube -shape portion of lid, stop the second block portion that the gomphosis breaks away from.

Description

Tube pump

Technical field

This utility model relates to tube pump.

Background technology

Known have by being that arc-shaped is joined by the inner peripheral surface being shaped generally as cylinder planar along housing The elastic tube put extrudes while making roller rotate along inner peripheral surface and carry between inner peripheral surface and roller The tube pump (patent documentation 1) of the liquid in elastic tube.

Tube pump described in patent documentation 1 includes dismounting the pump unit in driver element.Pump Unit is the structure being assembled with pipe and rotary part in the enclosure.Outside driver element is formed and houses The columned recess of the cylindric one end of shell.List is driven when being injected by the one end of shell During the recess of unit, the drive shaft prominent from the center of the bottom surface of recess and the rotation housed in the enclosure Rotation member links.In this condition, by shell when the forward direction of drive shaft rotates, shell The engagement pawl prominent to inner circumferential from opening of the engagement pawl that outwards week is prominent from front end and recess Engaging, pump unit is fixed on driver element.And, when shell is rotated to reverse directions Fix and be released from.

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2010-196538 publication

Utility model content

Utility model is wanted to solve the technical problem that

In patent documentation 1, in order to shell is arranged on driver element, need to carry out shell The action injecting the recess of driver element and the action the two action making shell rotate.Therefore, In the case of forgetting rotational shell and rotate insufficient in the case of, there is shell by halves It is fixed on the probability of pedestal.In the case of shell is the most fully fixed on pedestal, outside existing The problem that shell comes off from pedestal together with rotary part and/or pipe.

This utility model completes in view of the above circumstances, and its object is to offer can prevent Spin-ended rotation member and the tube pump come off of pipe.

For solving the technical scheme of technical problem

According to an embodiment of the present utility model, tube pump includes: have one end opening The pedestal of cylindrical portion；The elasticity configured along the inner peripheral surface of the cylinder planar of the cylindrical portion of said base Pipe；The rotary part configured with one heart with above-mentioned inner peripheral surface in the cylindrical portion of said base；Roller, It is rotatably supported by above-mentioned rotary part, extrudes between this roller and above-mentioned inner peripheral surface This inner peripheral surface of above-mentioned elastic tube one edge rotates；Lid, it is to close the cylindrical portion of said base The mode of above-mentioned opening is removably mountable to this pedestal；Rotate with to above-mentioned rotary part The driver element driven, above-mentioned lid has the cylindrical portion chimeric with the cylindrical portion of said base, on The cylindrical portion of the cylindrical portion and above-mentioned lid of stating pedestal is formed as non-cylindrical the most at least partially, In the cylindrical portion of said base, it is formed with the first engaging in the face relative with the cylindrical portion of above-mentioned lid Portion, the cylindrical portion at above-mentioned lid is formed with the second holding section, this second holding section with above-mentioned base The cylindrical portion of seat engages with above-mentioned first holding section when being fitted together to, and stops this chimeric disengaging.

Additionally, according to an embodiment of the present utility model, such as, above-mentioned first holding section Being engaging protuberance with the one in above-mentioned second holding section, another one is chimeric with this engaging protuberance Engaging recessed part.

Additionally, according to an embodiment of the present utility model, such as, above-mentioned lid and above-mentioned base The cylindrical portion of at least one of seat is configured to: in above-mentioned first holding section and above-mentioned second holding section When engaging or engaging release, based on elastic deformation above-mentioned carry out engaging near move diametrically Dynamic.

Additionally, according to an embodiment of the present utility model, such as, the tubular of said base Portion, the part that is formed with the first holding section be tabular, in the week of above-mentioned flat part Two ends, direction are formed with breach.

Additionally, according to an embodiment of the present utility model, such as, at the cylinder of said base Shape portion, is formed with the guiding guiding this lid in the axial direction in the face relative with the cylindrical portion of above-mentioned lid Portion, in the cylindrical portion of above-mentioned lid, the face relative with the cylindrical portion of said base be formed with on That states guide part engaging is directed to portion.

Additionally, according to an embodiment of the present utility model, such as, above-mentioned lid has a pair Above-mentioned first holding section, above-mentioned a pair first holding sections are configured to the rotation of above-mentioned rotary part Axle is clipped in the middle.

The effect of utility model

According to the structure of an embodiment of the present utility model, only by rotary part and/or pipe Lid presses under the state being housed in shell pedestal, and lid is just fixed on pedestal.Therefore, rotation The assembling of rotation member and pipe becomes easy, and can prevent the de-of rotary part and pipe by lid Fall.

Accompanying drawing explanation

Fig. 1 is the outside drawing of the tube pump of embodiment of the present utility model.

Fig. 2 is the outside drawing of the tube pump of embodiment of the present utility model.

Fig. 3 is the exploded view of the tube pump of embodiment of the present utility model.

Fig. 4 is the side cross-sectional view of the tube pump of embodiment of the present utility model.

Fig. 5 is the outside drawing of the lid of embodiment of the present utility model.

Fig. 6 is the outside drawing of the pedestal of embodiment of the present utility model.

The explanation of reference

100 tube pumps

102 driver elements

103 pedestals

105 lids

106 rotary parts

107 pipes.

Detailed description of the invention

Hereinafter, referring to the drawings embodiment of the present utility model is illustrated.Following description The tube pump of embodiment of the present utility model is general infusion pump, adds at cleaning device, food The various devices such as frock is put, various analytical equipment, armarium, chemical devices are for liquid Conveying.Additionally, the tube pump of embodiment of the present utility model is used not only for the conveying of liquid And can be used in transfer of gas.

Fig. 1 and Fig. 2 is the outside drawing of the tube pump 100 representing embodiment of the present utility model. Axonometric chart when Fig. 1 is in terms of face side, axonometric chart when Fig. 2 is in terms of rear side.Fig. 3 It it is the exploded perspective view of tube pump 100.Fig. 4 is the side cross-sectional view of tube pump 100.Fig. 5 is lid 105 In terms of rear side time outside drawing.Fig. 6 be pedestal 103 in terms of face side time outside drawing.

It addition, in the following description, by the depth direction of tube pump 100/fore-and-aft direction (Fig. 3 In, the direction gone down to the left from upper right) it is referred to as X-direction, by width/left and right directions (figure In 3, the direction gone down to the right from upper left) it is referred to as Y direction, by short transverse/above-below direction (in Fig. 3, the direction gone from bottom to top) is referred to as Z-direction.

As it is shown in figure 1, tube pump 100 include driver element 102, pedestal 103, rotary part 106, Pipe 107 and lid 105.Pedestal 103, lid 105 and rotary part 106 are by resin formation.Pipe 107 Formed by synthetic rubber elastomeric material, there is elasticity.

Additionally, the driver element 102 of present embodiment includes electromotor 102a and by electromotor The decelerator 102b that the moment of torsion of 102a amplifies.Motor 102a across distance member 102d by spiral shell Bolt is fixed on decelerator 102b.From not shown supply unit, motor 102a supply is driven electricity Power.The rotary motion of drive shaft 102c of electromotor 102a is decelerated device 102b and slows down, and it is turned round Square is exaggerated.Rotary motion after moment of torsion is exaggerated is transferred to pump unit by drive shaft 124 104。

Pedestal 103 to X-axis just has flat bottom 131 and the circumference from bottom 131 The sidewall 132 that direction vertically highlights.Utilize many at the back side (X-axis negative direction side) of bottom 131 Individual bolt is fixed with decelerator 102b.Additionally, the central authorities in bottom 131 are provided with and are formed Hole 134 through on direction of principal axis, the drive shaft 124 of driver element 102 passes.

Pedestal 103 has the blank part surrounded by bottom 131 and sidewall 132.Pedestal 103 Face side (X-axis positive direction side) becomes the inside (that is, blank part) of pedestal 103 with outside The opening of connection.In the inside of pedestal 103, by opening, rotary part 106 and pipe are installed 107.Additionally, the lid 105 that this opening can be installed and unload is closed.

The part in the face of the inner side of the sidewall 132 of pedestal 103 is the inner peripheral surface on the face of cylinder 103a.Pipe 107 is configured to substantially arc-shaped along this inner peripheral surface 103a.Additionally, at pipe 107 Two ends are provided with the shaft coupling 108 for linking with outside pipe arrangement.Rotary part 106 is at pedestal Configure with one heart with inner peripheral surface 103a in 103.

As shown in Figure 3,4, rotary part 106 includes the framework 160 of spool-like and rotatable The pair of rolls 167 that ground is supported by framework 160.Framework 160 have cylindrical shape main part 161, Pair of flanges portion 158,159 and prominent to peripheral direction from the direction of principal axis two ends of main part 161 Link the pair of rolls support shaft 165 of flange part 158 and flange part 159.The back of the body at flange part 159 Face (face of X-axis negative direction side) is formed with linking part 170.

Pair of rolls support shaft 165 around main part 161 with at equal intervals (i.e. at main part 161 Concentric circular cylinder on) configuration.Roller support shaft 165 is inserted on the central shaft of roller 167 formation Through hole, rotatably support stick 167.

A part for roller 167 is outside compared with framework 160 (flange part 158, flange part 159) All sides highlight.As shown in Figure 4, pipe 107 by roller 167 and pedestal 103 inner peripheral surface 103a Clip, be extruded into the degree that the internal face of pipe 107 is close to.(squeeze at the place that is extruded of pipe 107 Splenium) fluid (liquid or gas) in sealed tube.When rotary part 106 rotates, pipe 107 Press section move to the direction of rotation of rotary part 106, thus, the fluid in pipe 107 to The direction of rotation of rotary part 106 moves.

As shown in Figure 4, the central part in the bottom 151 of lid 105 is formed with axle sleeve 511.At axle The axle 512 of set 511 insertion rotary part 106.Thus, on the direction of principal axis of rotary part 106 End side (flange part 158 side) is supported as rotating by axle sleeve 511.

Linking part 170 links with drive shaft 124.As it is shown on figure 3, drive shaft 124 is transversal Face is the most criss-cross splined shaft.Additionally, linking part 170 has houses drive shaft 124 Criss-cross hole.Thus, linking part 170 is linked by spline coupling with drive shaft 124. Link by linking part 170 with drive shaft 124, it is possible to by the drive shaft of driver element 102 The rotary motion of 124 is transferred to rotary part 106 by linking part 170.

Then, the installation and taking off to lid illustrates.

As it is shown in figure 5, lid 105 includes: have the bottom of the substantially spherical crown shape of mild curvature 151；The substantially cylindric sidewall prominent to X-axis negative direction with the circumference from bottom 151 152.The recess to X-axis positive direction side depression is formed by bottom this 151 and sidewall 152.Sidewall In 152, the end 153 of downside is non-cylindrical, has smooth tabular in the present embodiment. Multiple holding section 120 it is formed with in the side of the inner side of sidewall 152.Holding section 120 is at least formed Having two, these two holding sections 120 configure in the way of clipping the rotary shaft of rotary part.Respectively Inside side, holding section 120 highlights, and has the longer shape that the side of the inner side along lid 105 extends Shape.Additionally, the direction of the extension of each holding section 120 is orthogonal with X-direction.Holding section 120 It is formed at the substantially cylindric part of sidewall 152 and the both sides of the part 153 of tabular.

As shown in Figure 6, in the sidewall 132 of pedestal 103, cover 105 sides (X-axis positive direction side) End 132a have substantially cylindric.In the 132a of end, part 132b of downside is not rounded Tubular, has smooth tabular in the present embodiment.Circumferential direction in part 132b of downside Both ends be formed with the breach being not provided with sidewall 132.Pipe 107 is through this breach.At end The outer peripheral face of portion 132a is formed with multiple slot 130.Slot 130 at least formed with two, These two slots 130 configure in the way of clipping the rotary shaft of rotary part.Each slot 130 There is the groove shape to inner side depression, there is the longer shape of the outer peripheral face extension along end 132a Shape.Additionally, the direction that each slot 130 extends is orthogonal with X-direction.Each slot 130 It is formed at the substantially cylindric part of end 132a and the both sides of part 132b of tabular.

Outside the cross section of the inwall (that is, the recess of lid 105) of sidewall 152 is with end 132a The cross section of wall has same shape.Additionally, the external diameter of end 132a is set to compare side Wall 152 to be formed without the internal diameter at holding section 120 slightly smaller and be formed with engaging than sidewall 152 Internal diameter at portion 120 is big.Therefore, when the sidewall 152 of lid 105 is covered at pedestal 103 During the 132a of end, in end 132a is embedded into sidewall 152 until holding section 120 and pedestal 103 X-axis negative direction side end interference till, both are almost without overlapping with gap.When Further pedestal 103 is pressed into lid 105 under the state interferenceed with pedestal 103 in holding section 120 Time, the resistance being subject to from pedestal 103 due to holding section 120, there is elastic deformation in pedestal 105 Internal diameter is expanded.Thus, holding section 120 is to advance to outside the end 132 of pedestal 103 The mode of side face moves.When being pressed into by lid 105 in this state, holding section 120 is at end 132a Move to the position being provided with slot 130 on outer peripheral face.So, want due to lid 105 Holding section 120 is made to enter in slot 130 from the power of the state restoration of elastic deformation, both Engaging.As a result of which it is, lid 105 can not be retreated in the X-axis direction relative to pedestal 103.This Outward, the cross section of sidewall 152 and end 132a is non-cylindrical.Therefore, at end 132a Embed the state in sidewall 152, lid 105 relative to pedestal 103 around X-direction not Can rotate.Thus, lid 105 is prevented from the disengaging of the Qian He of pedestal 103, and lid 105 is consolidated It is scheduled on pedestal 103.

By lid 105 in the case of pedestal 103 takes off, by the end of the downside in bottom 151 The step difference 154 formed between the end 153 of portion and sidewall 152 is dragged to X-axis positive direction layback. Due to the power of this pulling, lid 105 generation elastic deformation is so that internal diameter expands, at pedestal 103 The holding section 120 that formed, the end 153 of downside and the end 132b in the downside of pedestal 103 The engaging of the slot 130 formed is released from.Thus, advance in the holding section 120 of end 153 To the outer peripheral face of end 132b, compared with slot 130 at X-axis positive direction side.By Under this state, whole lid 105 is dragged to X-axis positive direction layback, it is possible to by pedestal 103 from pedestal 103 take off.

Additionally, as it is shown in figure 5, be formed along X in the side of the inner side of the sidewall 152 of lid 105 Multiple guiding groove 152a that direction of principal axis extends.Additionally, as shown in Figure 6, outside pedestal 103 The face of side is formed with the multiple guide protrusion 103b extended along X-direction.Guiding groove 152a's Forming position is corresponding with guide protrusion 103b, when lid 105 is arranged on pedestal 103, is drawing Corresponding guide protrusion 103b is housed in guide groove 152a.Thereby, it is possible to prevent from covering 105 and pedestal The dislocation of the circumferential direction of 103.

So, at the tube pump of present embodiment, it is possible to by lid 105 is pressed to pedestal 103 Shirtsleeve operation so that lid 105 generation elastic deformations, holding section 120 and slot 130 Engaging, is fixed on pedestal 103 by lid 105.Do not fixed therefore, it is possible to suppression becomes lid 105 In the state of pedestal 103, prevent from covering 105, rotary part 106, pipe 107 take off from pedestal 103 Fall.

Additionally, at the tube pump 100 of present embodiment, it is possible to by the end (step by lid 105 Differ from 154) shirtsleeve operation that pulls to opposite side (X-axis positive direction side) so that lid 105 There is the engaging in elastic deformation and engagement release portion 120 and slot 130,105 will be covered from base Seat 103 takes off.In such manner, it is possible to carry out covering 105 in the peace of pedestal 103 by shirtsleeve operation Filling and take off, therefore the maintenance of tube pump 100 becomes easy.

Being more than the explanation of embodiment of the present utility model, this utility model is not limited to The structure of the embodiment stated, and can carry out in the range of the thought of its technology various respectively The deformation of sample.

Such as, in the above-described embodiment so that lid 105 generation elastic deformation, holding section 120 engage or engagement release with slot 130, but this utility model is not limited to this knot Structure.Pedestal 103 can also be made to occur elastic deformation to make holding section by replacing lid 105 120 engage or engagement release with slot 130.In this case, at holding section 120 and card Closing groove 130 to engage or during engagement release, pedestal 103 occurs elastic deformation that external diameter is narrowed. Or, it is also possible to by make to cover 105 and pedestal 103 both sides occur elastic deformation to make card Conjunction portion 120 engages or engagement release with slot 130.

Claims (6)

1. a tube pump, it is characterised in that including:

There is the pedestal of the cylindrical portion of one end opening；

The elastic tube configured along the inner peripheral surface of the cylinder planar of the cylindrical portion of described pedestal；

The rotary part configured with one heart with described inner peripheral surface in the cylindrical portion of described pedestal；

Roller, it is rotatably supported by described rotary part, between this roller and described inner peripheral surface Rotate while extruding this inner peripheral surface of described elastic tube one edge；

Lid, it is detachably arranged in the way of closing the described opening of the cylindrical portion of described pedestal In this pedestal；With

Carry out described rotary part rotating the driver element driven,

Described lid has the cylindrical portion chimeric with the cylindrical portion of described pedestal,

The cylindrical portion of described pedestal and the cylindrical portion of described lid are formed as not rounded the most at least partially Tubular,

In the cylindrical portion of described pedestal, it is formed with first in the face relative with the cylindrical portion of described lid Holding section,

Cylindrical portion at described lid is formed with the second holding section, this second holding section with described base The cylindrical portion of seat engages with described first holding section when being fitted together to, and stops this chimeric disengaging.

2. tube pump as claimed in claim 1, it is characterised in that:

One in described first holding section and described second holding section is engaging protuberance, another one For the engaging recessed part chimeric with this engaging protuberance.

3. tube pump as claimed in claim 2, it is characterised in that:

The cylindrical portion of at least one of described lid and described pedestal is configured to: engage described first When portion engages with described second holding section or engage releasing, block described based on elastic deformation The vicinity closed is moved diametrically.

4. tube pump as claimed in claim 3, it is characterised in that:

The cylindrical portion of described pedestal, the part that is formed with the first holding section be tabular,

It is formed with breach at the circumferential direction two ends of described flat part.

5. the tube pump as described in any one in Claims 1 to 4, it is characterised in that:

In the cylindrical portion of described pedestal, it is formed at axle in the face relative with the cylindrical portion of described lid Boot up the guide part of this lid,

In the cylindrical portion of described lid, it is formed and institute in the face relative with the cylindrical portion of described pedestal That states guide part engaging is directed to portion.

6. the tube pump as described in any one in claims 1 to 3, it is characterised in that:

Described lid has the first holding section described in a pair,

The pair of first holding section is configured to be clipped in the middle the rotary shaft of described rotary part.