Multi-channel card type peristaltic pump capable of integrally releasing pump pipe in non-working state

Abstract

The invention discloses a multi-channel card type peristaltic pump capable of integrally releasing a pump pipe in a non-working state. The multi-channel card type peristaltic pump solves the problems that the service life of the pump pipe is short, the pump pipe is not easy to replace, and the pressure of the pump pipe is freely adjusted. The two ends of the synchronous disc assembly are arranged on the front support and the rear support respectively, the coupler is in power connection with the end, penetrating through the rear support, of the synchronous disc assembly, the multiple clamping piece assemblies are sequentially arranged above the synchronous disc assembly in the axial direction of the synchronous disc assembly, and one ends of the multiple clamping piece assemblies are movably clamped to one side of the U-shaped frame of the pump head support. A releasing assembly is movably arranged at the other end of each card assembly, one end of the releasing assembly penetrates through all the card assemblies, the other end of the releasing assembly penetrates through the rear support and then is in power connection with a steering engine arranged on the outer side of the rear support, the steering engine controls the rotating angle of the releasing assembly, and opening and closing between the card assemblies and the synchronous disc assembly are adjusted; the invention is widely applied to the field of peristaltic pumps.

Description

Technical Field

[0001] The invention relates to the field of peristaltic pumps, in particular to a multi-channel card-type peristaltic pump capable of releasing pump tubes as a whole in a non-working state. Background Art

[0002] Peristaltic pumps pump fluids by alternately squeezing and releasing the pump's flexible delivery hose. As the rollers roll over the pump tubing, they compress the tubing and create negative pressure, allowing more fluid to enter. During operation, at least one roller will hold the pump tubing in place, so it has a self-locking shutoff function. The rollers are turned directly by a motor or gearbox, similar to pinching a hose between two fingers. As the fingers move, negative pressure is created in the tube, allowing the fluid to flow.

[0003] The existing pump tube is in a squeezed state even when it is not working. Long-term non-working state will cause the same part of the pump tube to be squeezed for a long time. Since the pump tube cannot quickly restore its physical properties, there will be accuracy deviations when it is used again and the aging and damage of the pump tube will be accelerated, which will seriously affect the stability and service life of the fluid transmission pipeline system.

[0004] In addition, most of the existing pump tubes are in a closed shell. As a wearing part of the peristaltic pump, the pump body needs to be disassembled when the pump tube is replaced, which is inefficient. Currently, there are only a few quick-release structures that can open the pump body, which need to be disassembled manually, and the pressure of the pump tube cannot be adjusted at will, which brings inconvenience to the use of the peristaltic pump. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-channel card-type peristaltic pump which can release the pump tube as a whole in a non-working state in order to solve the problems of short service life of the pump tube, difficulty in replacing the pump tube and free adjustment of the pump tube pressure.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-channel card-type peristaltic pump that can release the pump tube as a whole in a non-working state, comprising a steering gear, a coupling, a front support, a rear support, a card assembly, a release assembly, a synchronous disk assembly and a pump head bracket, the two ends of the U-shaped pump head bracket are respectively provided with a front support and a rear support, the two ends of the synchronous disk assembly are respectively arranged on the front support and the rear support, the coupling is dynamically connected to one end of the synchronous disk assembly that passes through the rear support, and the synchronous disk assembly is driven to rotate by a power component dynamically connected to the coupling, a plurality of the card assemblies are sequentially arranged above the synchronous disk assembly along the axial direction of the synchronous disk assembly, and one end of the plurality of the card assemblies are movably clamped on one side of the U-shaped frame of the pump head bracket, the other end of the card assembly is movably provided with a release assembly, one end of the release assembly passes through all the card assembly arrangements, and the other end of the release assembly passes through the rear support and is dynamically connected to the steering gear arranged on the outside of the rear support, the steering gear controls the rotation angle of the release assembly to adjust the opening and closing between the card assembly and the synchronous disk assembly.

[0007] Furthermore, the structure of the card assembly includes a card body, a track groove, a spring, a hand screw, a lever, a lever shaft, a track groove shaft and a buckle, one end of the semicircular track groove is movably set at one end of the card body through the track groove shaft, a hand screw is set between the other end of the card body and the corresponding end of the track groove, and a spring is set between the hand screw and the track groove, the spring is sleeved on the hand screw, one end of the lever in a columnar shape is movably set in a corresponding groove on the upper side of the track groove, and the columnar end of the lever is movably set on the card body through the lever shaft, the interval between the track groove and the synchronization disk assembly is adjusted by manually rotating the lever, the card body is integrally provided with a buckle at one end of the lever, the buckle can be movably clamped on the U-shaped frame of the pump head bracket, and the end of the card body away from the buckle is provided with a slot matching the release assembly.

[0008] Furthermore, the structure of the release assembly includes a rotating shaft, a card arm, a rotating arm, a connecting rod, a connecting screw and a fastening nut. The card arm and the rotating shaft are arranged in parallel. Both ends of the card arm and the rotating shaft are provided with a rotating arm and a connecting rod. One end of the two rotating arms is respectively mounted on the two ends of the rotating shaft, and the other end of the rotating arm is aligned with the lower end of the connecting rod and is fixed together in series through a connecting screw and a fastening nut. The upper ends of the two connecting rods are respectively mounted on the two ends of the rotating shaft.

[0009] Furthermore, both ends of the rotating shaft are located on the outside of the connecting rod and are equipped with sliders, and the inner sides of the front support and the rear support are provided with slots corresponding to the positions of the sliders, and the sliders can constrain the card arms to move up and down in the slots of the front support and the rear support.

[0010] Furthermore, a limiting pin is provided on the side surface of one end of the card body away from the buckle, and the limiting pin is used to limit the position of the track groove after being subjected to force.

[0011] Furthermore, two ends of the limit pin are respectively inserted into two adjacent card components.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention drives the release assembly to rotate and open the pump body to replace the pump tube through the servo engine, and the pump tube pressure can be freely adjusted by using a hand screw. Moreover, when the pump body is in a non-working state, the pump tube pressure can be released by rotating the lever, thereby effectively extending the service life of the pump tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the explosion structure of the present invention.

[0016] Figure 4 It is a schematic diagram of the working state of the present invention.

[0017] Figure 5 It is a schematic diagram of the non-working state of the present invention.

[0018] Figure 6 It is a schematic diagram of the working state of the release component in the present invention.

[0019] Figure 7 It is a schematic diagram of the non-working state of the release component in the present invention.

[0020] Figure 8 It is a schematic diagram of the explosion structure of the release component in the present invention.

[0021] Fig. 9 It is a structural schematic diagram of the card assembly in the present invention.

[0022] In the figure: 1. Servo; 2. Coupling; 3. Front support; 4. Rear support; 5. Card assembly; 51. Card body; 52. Track groove; 53. Spring; 54. Thumb screw; 55. Lever; 56. Lever shaft; 57. Track groove shaft; 58. Buckle; 59. Limit pin; 6. Release assembly; 61. Rotating shaft; 62. Card arm; 63. Rotating arm; 64. Connecting rod; 65. Connecting screw; 66. Fastening nut; 67. Slider; 7. Synchronous disk assembly; 8. Pump head bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figures 1 to 9As shown, a multi-channel card-type peristaltic pump that can release the pump tube as a whole in a non-working state includes a steering gear 1, a coupling 2, a front support 3, a rear support 4, a card assembly 5, a release assembly 6, a synchronous disk assembly 7 and a pump head bracket 8. The two ends of the U-shaped pump head bracket 8 are respectively provided with a front support 3 and a rear support 4, and the two ends of the synchronous disk assembly 7 are respectively arranged on the front support 3 and the rear support 4. The coupling 2 is dynamically connected to one end of the synchronous disk assembly 7 that passes through the rear support 4, and the synchronous disk assembly 7 is driven to rotate by a power component dynamically connected to the coupling 2. A plurality of the card assemblies 5 are sequentially arranged above the synchronous disk assembly 7 along the axial direction of the synchronous disk assembly 7. The structure of the card assembly 5 includes a card body 51, a track groove 52, a spring 53, a hand screw 54, a lever 55, a lever shaft 56, a track groove shaft 57 and a buckle 58, which are semicircular. One end of the track groove 52 is movably set at one end of the card body 51 through the track groove shaft 57, and a hand screw 54 is set between the other end of the card body 51 and the corresponding end of the track groove 52, and a spring 53 is set between the hand screw 54 and the track groove 52, and the spring 53 is sleeved on the hand screw 54, and one end of the columnar end of the lever 55 is movably set in the corresponding groove on the upper side of the track groove 52, and the columnar end of the lever 55 is movably set on the card body 51 through the lever shaft 56, and the interval between the track groove 52 and the synchronization disk assembly 7 is adjusted by manually rotating the lever 55. The card body 51 is integrally provided with a buckle 58 at one end of the lever 55, and the buckle 58 can be movably connected to the U-shaped frame of the pump head bracket 8, and the end of the card body 51 away from the buckle 58 is provided with a slot matching the release assembly 6. A limit pin 59 is provided on the side surface of one end of the card body 51 away from the buckle 58 . The limit pin 59 is used to limit the position of the track groove 52 after being stressed. Both ends of the limit pin 59 are respectively inserted into two adjacent card components 5 .One end of the plurality of card assemblies 5 is movably connected to one side of the U-shaped frame of the pump head bracket 8, and the other end of the card assembly 5 is movably provided with a release assembly 6, and the structure of the release assembly 6 includes a rotating shaft 61, a card arm 62, a rotating arm 63, a connecting rod 64, a connecting screw 65 and a fastening nut 66, the card arm 62 and the rotating shaft 61 are arranged in parallel, and the two ends of the card arm 62 and the rotating shaft 61 are provided with a rotating arm 63 and a connecting rod 64, one end of the two rotating arms 63 is respectively sleeved on the two ends of the rotating shaft 61, and the other end of the rotating arm 63 is aligned with the lower end of the connecting rod 64 and is connected in series and fixed by a connecting screw 65 and a fastening nut 66. The two ends of the connecting rod 64 are fixed together, and the upper ends of the two connecting rods 64 are respectively mounted on the two ends of the rotating shaft 61. One end of the release assembly 6 passes through all the card assemblies 5, and the other end of the release assembly 6 passes through the rear support 4 and is connected to the power of the servo 1 arranged on the outside of the rear support 4. The rotation angle of the release assembly 6 is controlled by the servo 1 to adjust the opening and closing between the card assembly 5 and the synchronization disk assembly 7. The two ends of the rotating shaft 61 are located on the outside of the connecting rod 64 and are mounted with sliders 67. The inner sides of the front support 3 and the rear support 4 are provided with notches corresponding to the positions of the sliders 67. The sliders 67 can constrain the card arms 62 to move up and down in the notches of the front support 3 and the rear support 4.

[0025] The working state of the card assembly 5 in the present invention is briefly described as follows: 1. The card assembly 5 is fixed to the pump head bracket 8 through the buckle 59 on the card body 51. The buckle 59 rotates along the lever shaft 56 through the lever 55 to drive the buckle 59 to move along the track groove shaft 57 and self-lock, thereby realizing the assembly and disassembly of the card assembly 5 on the pump head.

[0026] 2. After the card assembly 5 is installed into the pump tube and fixed to the pump head, the position can be adjusted by hand-tightening the screw 54 so that the compression distance of the spring 53 changes to obtain the force value required for pump tubes of different materials and sizes.

[0027] 3. The limit pin 59 is used to limit the position of the track groove 52 after being subjected to force.

[0028] The working of the release component 6 in the present invention is briefly described as follows: 1. The rotating shaft 61 and the rotating arm 63 are fixedly connected and connected to the connecting rod 64, the card arm 62, and the slider 67. The rotating shaft 61 rotates to drive the rotating arm 63, the connecting rod 64, the slider 67, and the card arm 62 to move synchronously.

[0029] Among them, the slider 67 constrains the card arm 62 to move up and down in the grooves on the front support 3 and the rear support 3 of the pump head. The rotation angle is sequenced and controlled by the servo 1 at the rear end of the pump head, and the connecting rod 64, the rotating shaft 61 and the card arm 62 form a self-locking angle.

[0030] 2. The card assembly 5 and the pump tube are in the pump head. When in working state, the release assembly 6 rotates to the closed state (self-locking) and the pump head works. When not in working state, the servo 1 rotates and drives the release assembly 6 to open the card assembly 5, so that the pump tube remains in a free state, thereby effectively extending the service life of the pump tube and avoiding the transmission accuracy problem caused by the long-term compression deformation of the pump tube.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state, characterized in that: The invention comprises a steering gear (1), a coupling (2), a front support (3), a rear support (4), a card assembly (5), a release assembly (6), a synchronous disk assembly (7) and a pump head bracket (8), wherein the two ends of the U-shaped pump head bracket (8) are respectively provided with a front support (3) and a rear support (4), and the two ends of the synchronous disk assembly (7) are respectively provided on the front support (3) and the rear support (4), and the coupling (2) is connected to one end of the synchronous disk assembly (7) penetrating the rear support (4), and the synchronous disk assembly (7) is driven to rotate by a power component connected to the coupling (2), and a plurality of the card assemblies (5) are connected along the The axial direction of the synchronous disk assembly (7) is sequentially arranged above the synchronous disk assembly (7), and one end of each of the plurality of card assemblies (5) is movably connected to one side of the U-shaped frame of the pump head bracket (8), and the other end of the card assembly (5) is movably provided with a release assembly (6), one end of the release assembly (6) passes through all the card assemblies (5), and the other end of the release assembly (6) passes through the rear support (4) and is connected to a steering gear (1) arranged outside the rear support (4) through power, and the rotation angle of the release assembly (6) is controlled by the steering gear (1) to adjust the opening and closing between the card assembly (5) and the synchronous disk assembly (7).

2. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state according to claim 1, characterized in that: The structure of the card assembly (5) comprises a card body (51), a track groove (52), a spring (53), a hand screw (54), a lever (55), a lever shaft (56), a track groove shaft (57) and a buckle (58); one end of the semicircular track groove (52) is movably arranged at one end of the card body (51) via the track groove shaft (57); a hand screw (54) is arranged between the other end of the card body (51) and the corresponding end of the track groove (52); and a spring (53) is arranged between the hand screw (54) and the track groove (52); the spring (53) is sleeved on the hand screw (54). The lever (55) has a columnar end portion which is movably arranged in a corresponding groove on the upper side of the track groove (52), and the columnar end portion of the lever (55) is movably arranged on the card body (51) via a lever shaft (56). The interval between the track groove (52) and the synchronous disk assembly (7) is adjusted by manually rotating the lever (55). A buckle (58) is integrally arranged at one end of the lever (55), and the buckle (58) can be movably clamped on a U-shaped frame of a pump head bracket (8). A clamping groove which cooperates with the release assembly (6) is arranged at an end of the card body (51) away from the buckle (58).

3. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state according to claim 1, characterized in that: The structure of the release assembly (6) comprises a rotating shaft (61), a card arm (62), a rotating arm (63), a connecting rod (64), a connecting screw (65) and a fastening nut (66). The card arm (62) and the rotating shaft (61) are arranged in parallel. The rotating arms (63) and the connecting rod (64) are arranged at both ends of the card arm (62) and the rotating shaft (61). One end of the two rotating arms (63) is respectively sleeved on the two ends of the rotating shaft (61). The other end of the rotating arm (63) is aligned with the lower end of the connecting rod (64) and then connected and fixed together in series through the connecting screw (65) and the fastening nut (66). The upper ends of the two connecting rods (64) are respectively sleeved on the two ends of the rotating shaft (61).

4. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state according to claim 3, characterized in that: Both ends of the rotating shaft (61) are located outside the connecting rod (64) and are provided with sliding blocks (67). The inner sides of the front support (3) and the rear support (4) are provided with notches at positions corresponding to the sliding blocks (67). The sliding blocks (67) can constrain the card arm (62) to move up and down in the notches of the front support (3) and the rear support (4).

5. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state according to claim 3, characterized in that: A limiting pin (59) is provided on the side surface of one end of the card body (51) away from the buckle (58), and the limiting pin (59) is used to limit the position of the track groove (52) after being subjected to force.

6. A multi-channel card-type peristaltic pump capable of releasing the pump tube as a whole in a non-working state according to claim 5, characterized in that: Both ends of the limiting pin (59) are respectively inserted into two adjacent card components (5).

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