CN211343301U - Clamping device of peristaltic pump head and peristaltic pump head - Google Patents

Abstract

The utility model discloses a card device and peristaltic pump head of peristaltic pump head, this card device includes: the card main body, the swing rod and the pressure adjusting assembly; the bottom of the card main body is provided with a hose groove matched with the roller assembly, and one end of the card main body is provided with a first connecting part; the swing rod is arranged at the other end of the card main body through a swing rod shaft, and the swing rod shaft penetrates through a guide hole in the card main body; the bottom of the swing rod is provided with a second connecting part; the pressure adjusting assembly is rotatably connected with the top of the swing rod through a rotating shaft; the bottom end of the pressure adjusting assembly is abutted against the prefabricated groove on the card main body; and rotating the top end of the pressure adjusting assembly to adjust the acting force between the bottom end of the pressure adjusting assembly and the prefabricated groove to form self-locking. The clamping device is simple in structure, is applied to a multi-channel peristaltic pump, and can achieve the purpose of conveniently and continuously adjusting the pressing force of the hose while achieving convenient assembly and disassembly.

Description

Clamping device of peristaltic pump head and peristaltic pump head

Technical Field

The utility model relates to a peristaltic pump technical field especially relates to a card device and peristaltic pump head of peristaltic pump head.

Background

A peristaltic pump is a special volumetric pump, mainly used for dispensing or conveying fluids. It can be widely used in pharmaceutical, food and chemical industries. When the peristaltic pump head works, the roller rotates, a section of pump pipe between two rollers forms a pillow-shaped fluid, and the fluid is pumped by alternately extruding and releasing an elastic conveying hose of the pump; the volume of the pillow influences the flow; the rotation speed of the roller also affects the flow rate.

The multi-channel pump head is widely used because of its easy replacement and hose fixation.

In the current market, a multi-channel card type pump head mainly has three structural forms.

The first form:

as shown in fig. 1, the multi-channel type pump head of the prior art generally includes front and rear support plates connected to each other by a support rod, a card shaft and a square bar, a non-base circular gear 102 (some designs using an elastic member instead of the gear), and a roller assembly, a hose groove 103 formed below the card body 101 to be fitted to the roller assembly, a rigid engaging portion 105 engaged with the card shaft and an elastic engaging portion 104 engaged with the square bar at both ends of the card body 101. The gear 102 is arranged on the card body 101 through a gear shaft, the outer peripheral surface of the gear 102 is in a cam structure, gear teeth are arranged along the axial direction of the outer peripheral surface, the gear 102 is matched with a pressing part with a hose groove 103 below the card body, and the pressing part can be pressed downwards through rotating a handle 106 on the gear 103, so that the roller assembly is pressed. In the process of pressing the roller assembly, the elastic clamping part 104 hooks the square bar tightly, so that the purpose of installing the card body 101 on the front and rear supporting plates is achieved, when the hose is replaced or the card body 101 is disassembled, the elastic clamping part 104 needs to be pressed to be separated from the square bar, and the card body 101 can be disassembled.

The multichannel pump head utilizes the principle of a non-base circular gear to adjust the pressure pipe gap, when the card body is detached, the gear cannot be rotated in the opposite direction to detach the card from the pump head body, and the card body can only be detached by pressing the elastic clamping part, so that the detachment is very inconvenient.

The second form:

as shown in fig. 2, a card body 201 arranged between the front support plate and the rear support plate, the bottom of the card body is provided with a hose groove 207 matched with the roller assembly, and one end of the card body is connected with a card shaft (202, card shaft groove);

the swing rod 205 is arranged on one side of the card body through a swing rod shaft, the swing rod shaft penetrates through a guide hole in the card body, the guide hole is provided with a vertical guide hole and an inclined guide hole which forms an obtuse angle with the vertical guide hole and extends outwards, and the bottom of the swing rod is provided with a clamping groove 206 which is clamped with the square bar;

the cam 204 is arranged on the swing rod through a cam shaft, one end of the cam is provided with a handle, and the cam is abutted to the cam matching surface of the card main body;

the stop block 203 is arranged on the card main body, is provided with a guide surface which is matched with the cam and guides the cam outwards, and is provided with a limit column for limiting the rotation angle of the cam, and the limit column is in limit fit with the handle.

This multichannel type pump head relies on the gear on the cam curved surface and the gear meshing on the card main part, though practice easily adorn, the hose packing force is adjustable, but the scheduling problem of regulated pressure discontinuity.

The third form:

as shown in fig. 3, the multi-channel split pressure block 301 of the pump head is fixed to the mounting plate 304 of the pump head by a rotating shaft 302, and the pressure adjustment assembly 303 with an elastic structure is fixed to the mounting plate 304 of the pump head by the other side of the rotating shaft. The pressing block and the pressure adjusting assembly are fixedly connected with the mounting plate and cannot be detached. In the use process, the pressure adjusting assembly 303 is opened, the pressure block 301 is opened, the peristaltic pump hose is clamped between the pressure block 301 and the pump head roller assembly 305 and fixed on the pipe clamp groove 306, then the pressure block 301 is closed, the pressure adjusting assembly 303 is locked, and the pump head starts to work.

This multichannel pump head has realized the regulation to the continuous pressure of peristaltic pump hose through the pressure regulation assembly of taking elastic construction, but, briquetting and pressure regulation assembly separation, and fix respectively on the mounting panel, can not dismantle, and when the pump head was installed at a certain fixed position, the user dress card or change the hose just very inconvenient. Because the pressing block and the pressure adjusting assembly are arranged on the bottom plate in a single-arm structure, after the hose is clamped in the pump head, the reaction force generated by each pressing block on the fulcrum of the single-arm structure is unbalanced, so that the pump head is unstable in work, and the expansion capacity of the number of the channels is limited by the single-arm structure and cannot be expanded randomly.

SUMMERY OF THE UTILITY MODEL

In view of the problem that above-mentioned three kinds of multichannel pump head cards and multichannel briquetting pump head exist, provided the utility model discloses so as to provide a card device and the peristaltic pump head of a peristaltic pump head that overcomes above-mentioned problem or solve above-mentioned problem at least partially, realize the purpose convenient, the continuous adjustment hose packing force when realizing being convenient for install and remove.

In a first aspect, an embodiment of the present invention provides a clamping device for a pump head of a peristaltic pump, including:

the card comprises a card body, a first connecting part and a guide hole, wherein one end of the card body is provided with the first connecting part, and the other end of the card body is provided with the guide hole; the guide hole is provided with a vertical guide area and an inclined guide area which forms an obtuse angle with the vertical guide area and extends outwards;

the swing rod is arranged at the other end of the card main body through a swing rod shaft, and the swing rod shaft penetrates through the guide hole; the bottom of the swing rod is provided with a second connecting part;

the pressure adjusting assembly is rotatably connected with the top of the oscillating bar through a rotating shaft; the bottom end of the pressure adjusting assembly is abutted against the prefabricated groove on the card main body; and rotating the top end of the pressure adjusting assembly to adjust the acting force between the bottom end of the pressure adjusting assembly and the prefabricated groove to form self-locking.

Furthermore, the pressure adjusting assembly comprises a shell with openings at two ends, a locking screw, an elastic component and a thimble;

the inner wall of the shell is provided with threads;

the locking screw is in threaded connection with the shell; the elastic assembly and the ejector pin are sequentially arranged in the shell from top to bottom and are located below the locking screw.

Further, the elastic component is a compression spring or an elastic rubber mat.

Furthermore, the first connecting part is a clamping groove with an opening at one side and is concave inwards;

or the first connecting part is a through hole.

Furthermore, the second connecting part is a clamping groove which is opened at one side and is concave inwards.

In a second aspect, the present invention provides a peristaltic pump head, including: the peristaltic pump comprises a front supporting plate, a rear supporting plate, a roller assembly mechanism, a first fixing component, a second fixing component and one or more clamping piece devices of the peristaltic pump head in any one of the embodiments;

wherein: the roller assembly mechanism, the first fixing component, the second fixing component and the card device are all positioned between the front supporting plate and the rear supporting plate;

the roller assembly mechanism, the first fixing component and the second fixing component are connected with the front supporting plate and the rear supporting plate;

one end of a card main body in the card device is rotationally connected or clamped with the first fixing component; the other end is clamped with the second fixing component.

Further, the first fixing component is a connecting shaft or a connecting plate with a clamping table.

Further, the second fixing component is a connecting plate with a clamping table.

The embodiment of the utility model provides an above-mentioned technical scheme's beneficial effect includes at least:

the embodiment of the utility model provides a pair of card device of peristaltic pump head, include: the card comprises a card body, wherein the bottom of the card body is provided with a hose groove matched with a roller assembly, one end of the card body is provided with a first connecting part, and the other end of the card body is provided with a guide hole; the guide hole is provided with a vertical guide area and an inclined guide area which forms an obtuse angle with the vertical guide area and extends outwards; the swing rod is arranged at the other end of the card main body through a swing rod shaft, and the swing rod shaft penetrates through the guide hole; the bottom of the swing rod is provided with a second connecting part; the pressure adjusting assembly is rotatably connected with the top of the oscillating bar through a rotating shaft; the bottom end of the pressure adjusting assembly is abutted against the prefabricated groove on the card main body; and rotating the top end of the pressure adjusting assembly to adjust the acting force between the bottom end of the pressure adjusting assembly and the prefabricated groove to form self-locking. The clamping device is simple in structure, is applied to a multi-channel peristaltic pump, and can achieve the purpose of conveniently and continuously adjusting the pressing force of the hose while achieving convenient assembly and disassembly.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a prior art multi-channel pump head;

FIG. 2 is a schematic view of yet another multi-channel type pump head of the prior art;

FIG. 3 is a schematic view of another multi-channel type pump head of the prior art;

fig. 4 is an exploded view of a card device of a peristaltic pump head according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating an open state of a clamping device of a pump head of a peristaltic pump according to an embodiment of the present invention;

fig. 6 is a schematic view of a closed state of a clamping device of a pump head of a peristaltic pump according to an embodiment of the present invention;

fig. 7 is a schematic view of a closed state of another card device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a pressure adjustment assembly according to an embodiment of the present invention;

fig. 9 is an exploded view of a pump head of a peristaltic pump according to an embodiment of the present invention;

FIG. 10 is a side view of a pump head of a peristaltic pump according to an embodiment of the present invention;

fig. 11 is a perspective view of a pump head of a peristaltic pump according to an embodiment of the present invention;

fig. 12 is another perspective view of a pump head of a peristaltic pump according to an embodiment of the present invention;

fig. 13 is an internal structure view of a pump head of a peristaltic pump according to an embodiment of the present invention;

in the figure: 1-a card body; 2-oscillating bar; 3-a pressure regulation assembly; 4-front supporting plate; 5-a rear supporting plate; 6-roller assembly mechanism; 7-a first fixation assembly; 8-a second fixation assembly; 11-a first connection; 12-a pilot hole; 21-a swing rod shaft; 22-a second connection; 31-a rotating shaft; 32-a housing; 33-locking screws; 34-a resilient component; 35-ejector pin.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The embodiment of the utility model provides a card device of peristaltic pump head, the following description combines the figure to describe.

In the embodiment of the present invention, as shown in fig. 4-7, a clamping device for a pump head of a peristaltic pump is provided, which includes: the card comprises a card main body 1, a swing rod 2 and a pressure adjusting assembly 3;

the bottom of the card body 1 is provided with a hose groove (not shown) adapted to the roller assembly, and one end of the hose groove is provided with a first connecting portion 11, through which the card device can be mounted on the pump head assembly. The other end has a guide hole 12, and the guide hole 12 has a vertical guide section and an inclined guide section extending to the outside at an obtuse angle to the vertical guide section.

The swing rod 2 is arranged at the other end of the card main body 1 through a swing rod shaft 21, and the swing rod shaft 21 penetrates through the guide hole 12; when the rocker 2 is rotated, i.e. opens or closes the card means, the rocker shaft 21 slides in the region of the guide hole 12. The bottom of the rocker 2 has a second connecting portion 22, and this second connecting portion 22 is also used for fixed mounting on the pump head assembly.

A pressure adjusting assembly 3 is mounted at the top of the swing rod 2 through a rotating shaft 31, and is in an open state as shown in fig. 5; when closed, as shown in fig. 6, the bottom end of the pressure regulating assembly 3 abuts against a pre-groove (not shown) in the card body 1; when the pressure adjusting assembly 3 is rotated, the acting force between the bottom end of the pressure adjusting assembly 3 and the prefabricated groove can be adjusted, and then the acting force is transmitted to the card body 1 to form self-locking; the pressure of the hose can be conveniently and continuously adjusted.

As shown in fig. 8, the pressure regulating assembly 3 includes a housing 32 with two open ends, a locking screw 33, an elastic component 34 and a thimble 35;

which transmits the pressure to the card body 1 through the locking screw 33, the elastic member 34 and, in turn, the ejector pin 35. The elastic element 34 may be a compression spring or an elastic rubber pad, and may be any other elastic element capable of restoring its original shape after the force is removed, which is not limited in the embodiment of the disclosure.

For example, when the locking screw 33 of the pressure adjustment assembly 3 is rotated counterclockwise, the thimble 35 is pushed into the preset groove of the card body 1, and the shaped guide hole 12 of the card body 1 can be pressed downward into the hose under the constraint of the rocker shaft 21, and the proper pressing force on the hose is realized by the compression force of the compression spring. Clockwise rotation this pressure adjustment assembly 3, thimble 35 rotation break away from card main part 1, and is rotatory through pivot 31, pushes away pendulum rod 2 from card body 1 simultaneously, and then realizes taking out and installing the convenience of card device.

Further, the first connecting portion 11 may be a concave slot with an opening on one side, as shown in fig. 4-7, where fig. 4-6 are U-shaped slots, which can be connected to a connecting shaft of the pump head assembly to be assembled; the clamping pin shown in fig. 7 can be clamped on a connecting plate to be assembled on the pump head assembly, and a clamping table matched with the clamping pin is arranged on the connecting plate.

The first connecting portion 11 may be a through hole penetrating through a connecting shaft to be assembled to the pump head assembly, as long as it can be fixed to the pump head assembly and can realize rotation of the connected components.

Further, also the above-described second connection portion 22 may adopt a card slot structure as the first connection portion 11.

The utility model provides a card device of peristaltic pump head when it is used in peristaltic pump head, can conveniently dismantle and install the card main part to through the pressure adjustment assembly, can realize adjusting the pressure to the hose continuously, convenient operation improves work efficiency.

The utility model discloses still provide a peristaltic pump head, refer to fig. 9-13 and show, include: the peristaltic pump comprises a front supporting plate 4, a rear supporting plate 5, a roller assembly mechanism 6, a first fixing component 7, a second fixing component 8 and one or more clamping devices of the peristaltic pump head as the embodiment; this peristaltic pump head is equipped with the back backup pad and does the support, compares the single armed structure, and the atress is more stable.

Wherein: the roller assembly mechanism 6, the first fixing component 7, the second fixing component 8 and the clamping device are all positioned between the front supporting plate 4 and the rear supporting plate 5 and are installed in an adaptive mode. The roller assembly mechanism 6, the first fixing component 7 and the second fixing component 8 are connected with the front supporting plate 4 and the rear supporting plate 5.

The first fixing component 7 is detachably connected with the first connecting part 11; when the first connecting part 11 is a U-shaped clamping groove, the first fixing component 7 is a connecting shaft connected between the front supporting plate 4 and the rear supporting plate 5; the card device is clamped on the connecting shaft through the U-shaped clamping groove. Referring to fig. 13, when the first connecting portion 11 is a clip, the first fixing element 7 is a connecting plate having a clip platform.

When the first connecting portion 11 is a through hole, it can be inserted into the connecting shaft, and when the other end of the card body 1 rotates through the swing rod 2, the card body 1 is rotatably connected with the connecting shaft.

Referring to fig. 13, the second fixing element 8 is detachably connected to the second connecting portion 22, and when the second connecting portion 22 is a clamping pin, the second fixing element 8 is a connecting plate or a square bar having a clamping platform. The connecting plate or square bar is connected between the front support plate 4 and the rear support plate 5.

In this embodiment, after the card device of the above embodiment is mounted on the peristaltic pump head:

when the peristaltic pump head is replaced with the hose, the pressure adjusting assembly can be rotated firstly, the pressure of the pressure adjusting assembly on the card main body is relieved, then the swing rod is pulled, and the connection between the swing rod and the second fixing piece is opened; the card device is convenient to detach.

After the peristaltic pump head is replaced with the hose, the swing rod is pulled at first and clamped with the second fixing piece, and then the hose can be continuously adjusted in pressure by rotating the pressure adjusting assembly.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A card apparatus for a pump head of a peristaltic pump, comprising:

the card comprises a card body (1), wherein one end of the card body (1) is provided with a first connecting part (11), and the other end of the card body is provided with a guide hole (12); the guide hole (12) is provided with a vertical guide area and an inclined guide area which forms an obtuse angle with the vertical guide area and extends outwards;

the swing rod (2) is arranged at the other end of the card main body (1) through a swing rod shaft (21), and the swing rod shaft (21) penetrates through the guide hole (12); the bottom of the swing rod (2) is provided with a second connecting part (22);

the pressure adjusting assembly (3) is rotatably connected with the top of the swing rod (2) through a rotating shaft (31); the bottom end of the pressure adjusting assembly (3) is abutted with a prefabricated groove on the card body (1); and rotating the top end of the pressure adjusting assembly (3) to adjust the acting force between the bottom end of the pressure adjusting assembly (3) and the prefabricated groove to form self-locking.

2. The clamping device of the pump head of the peristaltic pump as claimed in claim 1, wherein the pressure regulating assembly (3) comprises a shell (32) with two open ends, a locking screw (33), an elastic component (34) and a thimble (35);

the inner wall of the shell (32) is provided with threads;

the locking screw (33) is in threaded connection with the shell (32); the elastic component (34) and the thimble (35) are sequentially arranged in the shell (32) from top to bottom and are positioned below the locking screw (33).

3. A clip assembly for a pump head of a peristaltic pump as claimed in claim 2, wherein said resilient member (34) is a compression spring or a resilient rubber pad.

4. The clamping device of the pump head of the peristaltic pump as claimed in claim 1, wherein the first connecting portion (11) is a clamping groove which is open at one side and is concave;

or the first connecting part (11) is a through hole.

5. A clip means of a peristaltic pump head as claimed in any one of claims 1 to 4, wherein said second connecting portion (22) is a slot open at one side and recessed.

6. A peristaltic pump head, comprising: a front supporting plate (4), a rear supporting plate (5), a roller assembly mechanism (6), a first fixing component (7), a second fixing component (8) and one or more clamping device of the peristaltic pump head as claimed in any one of claims 1 to 5;

wherein: the roller assembly mechanism (6), the first fixing component (7), the second fixing component (8) and the clamping device are all positioned between the front supporting plate (4) and the rear supporting plate (5);

the roller assembly mechanism (6), the first fixing component (7) and the second fixing component (8) are connected with the front supporting plate (4) and the rear supporting plate (5);

one end of a card body (1) in the card device is rotationally connected or clamped with the first fixing component (7); the other end is clamped with the second fixing component (8).

7. A peristaltic pump head as claimed in claim 6, wherein said first fixing means (7) is a connecting shaft or a plate with a blocking means.

8. A peristaltic pump head as claimed in claim 6, wherein said second fixing member (8) is a web having a catch.

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