CN114941619A - A kind of peristaltic pump with good rigidity and easy installation and assembling method thereof - Google Patents

Abstract

The invention relates to a peristaltic pump with good rigidity and easy installation and an assembling method thereof, and the peristaltic pump comprises a driving mechanism (10), a pump head cover plate (11), a pump body base (12), a roller assembly (13) and a hose device (14), wherein the driving mechanism (10) comprises a worm (101), a turbine (102) and a motor (103), and is characterized by further comprising a fixed shaft (15), two ends of the fixed shaft (15) are respectively fixed on the pump head cover plate (11) and the pump body base (12), and a first central through hole (131) which penetrates through the axial center of the roller assembly (13) is formed and can be relatively rotated and fixed. The invention not only ensures that the peristaltic pump has good rigidity and stable structure, but also ensures that the turbine has a flexibly rotating adjusting space in the installation process, and exactly solves the problem that the rotating meshing of the gear needs space adjustment when the turbine and the worm are installed.

Description

A kind of peristaltic pump with good rigidity and easy installation and assembling method thereof

technical field

The invention relates to a peristaltic pump structure device, in particular to a peristaltic pump easy-to-install structure suitable for automatic installation and an assembly structure and process method with higher rigidity, in particular to a peristaltic pump with good rigidity and easy-to-install and an assembly method thereof.

Background technique

The peristaltic pump has the advantages of simple structure, no pollution and high precision. It is widely used, especially in the recent automation of cleaning products, and the application effect of small peristaltic pumps is also quite significant. The core technology of the peristaltic pump principle is simple and the technology is relatively mature, so it is more to improve the rigidity and convenient installation of the overall structure design to improve the overall performance and production process of the small peristaltic pump.

With the increase of labor costs, automated production has been more and more applied, and the improvement of production technology occupies a considerable position in the market competition. It is necessary to consider the realization of automated production while improving product performance.

SUMMARY OF THE INVENTION

The object of the present invention provides a peristaltic pump with good rigidity and easy installation and an assembly method thereof, and the disclosed technical scheme is as follows:

A peristaltic pump that is rigid and easy to install, comprising a drive mechanism (10), a pump head cover plate (11), a pump body base (12), a roller assembly (13) and a hose device (14), the drive mechanism (10) comprises a worm (101), a turbine (102), a motor (103), and is characterized in that it further comprises a fixed shaft (15), and the two ends of the fixed shaft (15) are respectively fixed to the pump head cover plate (11) and the The pump body base (12) passes through the first central through hole (131) provided at the axial center position of the roller assembly (13), so as to be relatively rotatably fixed.

Wherein, the roller assembly (13) further comprises a second central through hole (132), and the transmission shaft (1021) of the turbine (102) of the driving mechanism (10) is fixed to the second central through hole for rotational transmission (132); the fixed shaft (15) passes through a third central through hole (1022) provided at the axial center position of the turbine (102) to form a relatively rotatable fixation; wherein the first central through hole (131) and the third central through hole (1022) is set to be adapted to the diameter of the fixed shaft (15), which is smaller than the second central through hole (132) is set to be adapted to the transmission shaft ( 1021) aperture. That is, the two sections of central through holes with different diameters provided at the axial center position of the roller device (13) are respectively adapted to be relatively rotatably adapted to the fixed shaft and radially rotated to be adapted to the turbine.

Further, the length of the second central through hole (132) on the roller assembly (13) for adapting to the transmission shaft (1021) of the turbine (102) is set as the central axis of the roller assembly (13). Between one-third and two-thirds of the overall height. That is, the transmission shaft (1021) only passes through half the length of the axial center position of the roller assembly (13), not only the transmission shaft (1021) and the roller assembly (13) can achieve a good rotation transmission and fixing effect, but also can achieve a Proper displacement adjustment.

Further, the length of the second central through hole (132) is equal to the length of the first central through hole (131) for fitting the fixed shaft (15).

Further, the drive mechanism (10) further comprises a limit plate (104), the limit plate (104) is configured to have a limit hole (1041) adapted to the end of the worm (101), and A support piece (1042) is arranged to be fixed against the inner wall of the pump head cover plate (11).

Further, the two sides of the limiting plate (104) are slidably fixed to the guide grooves (127) provided on the pump body base (12).

Further, the pump head cover plate (11) is also provided with a fixed guide shaft (114), which is fitted and buckled with the fixed guide shaft hole post (128) set in the pump body base (12). In the process of installing the integral peristaltic pump product, the cooperation of the fixed guide shaft (114) and the fixed guide shaft hole column (128) not only realizes the guiding function, but also makes the whole peristaltic pump product more stable and not easy to deform and has good rigidity.

The invention also discloses an assembly method of the peristaltic pump with high rigidity and easy installation, which is used for the production of the above-mentioned peristaltic pump with high rigidity and easy installation. The rotating space during meshing not only improves the overall rigidity of the peristaltic pump, but also realizes a more convenient installation method, especially suitable for automatic production processes. The specific installation method steps are as follows:

A1. Positioning the worm: Position the worm at the corresponding position of the pump body base;

B1. Motor fixation: install and fix the motor on the motor base of the pump body base in step A1, and the motor drive shaft passes through the motor shaft hole of the pump body base and matches the inner hole of the worm to rotate and drive and fix it;

A2. Roller device combination: the roller is installed on the roller bracket, and the roller cover is buckled to form the roller device. The drive shaft of the turbine is fixed through the second central through hole of the roller device, and the fixed shaft passes through the first central through hole of the roller device at the same time. After forming an integral roller device combination with the third central through hole of the turbine, the hose device fixes the periphery of the roller device combination;

B2. Pump head cover plate: one end of the fixed shaft of the roller device combination in step A2 can be relatively rotatably fixed to the pump head cover plate, and fixed to the other end of the turbine installation;

C. Overall combination: Combine the pump body base with the worm and motor assembled in step B1 and the pump head cover roller device assembled in step B2 for combined installation to form the whole peristaltic pump. During the installation process, the pump body The worm and motor in the base are fixed relative to the base of the pump body and do not rotate and move. During the installation, when the turbine and the worm are engaged, only the turbine in the pump head cover roller device combination is adjusted to rotate and fretting to realize the meshing of the gears. Because the motor shaft cannot rotate when the motor is not energized, it is impossible to adjust the rotation of the assembled worm to realize the engagement of the gears. The installation process of the present invention allows the turbine to have a flexible rotation adjustment space, which just solves the problem of the turbine and the When the worm is installed, the meshing rotation of the gear requires space adjustment.

Further, in the setting of the transmission shaft adaptation and installation of the turbine in the A2 step, the length of the transmission shaft is set to be between one-third and two-thirds of the total height of the central shaft of the roller device. Designed to be half the length of the overall height of the central shaft. That is, it is more suitable for the turbine to have a space that can be adjusted up and down without disengagement during the installation process, and realize flexible rotation adjustment.

Further, in the step A1, the worm is fixed in the base of the pump body, and a limit plate is used to engage and fix the slot provided at the position of the motor shaft hole of the base of the pump body. The limit plate presses the worm to prevent the worm from moving axially, which affects the installation and fixation of the entire drive device, especially the motor.

Further, in the overall assembly of the step C, the guide-type fixing is also performed by the cylindrical fixed guide shaft and the cylindrical fixed guide shaft hole post. The fixed guide shaft and the fixed guide shaft hole column are respectively arranged on the pump head cover and the pump body base. During the process of installing the whole peristaltic pump product, the fixed guide shaft and the fixed guide shaft hole column cooperate not only to realize the guiding function, but also to make The whole peristaltic pump product is more stable and not easy to deform and has good rigidity.

According to the above technical solutions, the present invention has the following beneficial effects: 1. The present invention is a peristaltic pump with good rigidity and easy installation and an assembling method thereof. A fixed shaft of the central axis type is arranged in the center of the pump body, and the turbine shaft is not used to directly support the fixed whole. Rotating structure, and fixing the rotating transmission shaft of the turbine only to part of the central through hole of the roller device, not only makes the peristaltic pump rigid and stable in structure, but also allows the turbine to have flexible rotation adjustment space during the installation process, which just solves the problem of the turbine. When installed with a worm, the meshing rotation of the gear requires space adjustment. 2. In the structure of the peristaltic pump of the present invention, the limit piece is used to limit and fix the worm, so that during the installation of the whole pump, the worm will not cause axial movement and affect the assembly of the product. 3. In the present invention, the guide, installation and fixation of the fixed guide shaft is also added, which not only realizes a good guiding effect during the assembly of the product, but also realizes a more stable and non-deformable fixed structure for the whole product, so that the entire peristaltic pump product Just better.

Description of drawings

Fig. 1 is the schematic diagram of the overall structure of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 2 is the schematic diagram of explosion decomposition of the peristaltic pump structure of the preferred embodiment of the present invention;

Fig. 3 is the pump body base structure schematic diagram of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 4 is the schematic diagram of the pump head cover plate structure of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 5 is the roller structure schematic diagram of the peristaltic pump of the preferred embodiment of the present invention;

6 is a schematic cross-sectional view of the overall structure A-A of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 7 is the assembly flow schematic diagram of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 8 is the driving mechanism schematic diagram of the peristaltic pump of the preferred embodiment of the present invention;

Fig. 9 is the installation exploded schematic diagram of the roller device of the peristaltic pump, the pump head cover plate and the central shaft of the preferred embodiment of the present invention;

Fig. 10 is the installation combination schematic diagram of the roller device of the peristaltic pump of the preferred embodiment of the present invention, the pump head cover plate and the central shaft;

FIG. 11 is a schematic structural diagram of the limiting plate of the peristaltic pump according to the preferred embodiment of the present invention.

In the figure,

Drive mechanism 10, worm 101, turbine 102, transmission shaft 1021, third central through hole 1022, motor 103, limit plate 104, limit hole 1041, support piece 1042;

The pump head cover 11, the first nozzle fixing groove 111, the first buckle 112, the first central shaft installation groove 113, and the fixed guide shaft 114;

Pump body base 12, motor seat 121, motor fastener 1211, motor shaft hole 1212, pump head housing 122, second central shaft mounting groove 123, second buckle 124, turbine worm seat 125, roller seat 126, guide groove 127. Fixed guide shaft hole 128, nozzle fixing clip hole 129;

The roller device 13, the first central through hole 131, the second central through hole 132, the roller 133, the roller bracket 134, and the roller cover 135;

Hose device 14, hose 141, first conduit opening 142, second conduit opening 143;

Fixed shaft 15.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 11 , a peristaltic pump that is rigid and easy to install includes a drive mechanism 10 , a pump head cover 11 , a pump body base 12 , a roller assembly 13 and a hose device 14 , and the drive mechanism 10 includes a worm 101 , turbine 102, motor 103, is characterized in that it also includes a fixed shaft 15, the two ends of the fixed shaft 15 are respectively fixed on the pump head cover plate 11 and the pump body base 12, passing through the first axial center position of the roller assembly 13. The central through hole 131 is formed to be relatively rotatable and fixed.

As shown in FIG. 6 , the roller assembly 13 further includes a second central through hole 132 , and the transmission shaft 1021 of the turbine 102 of the driving mechanism 10 is fixed in the second central through hole 132 for rotational transmission; the fixed shaft 15 passes through the shaft of the turbine 102 The third central through hole 1022 arranged in the center position is formed to be relatively rotatable and fixed; wherein the first central through hole 131 and the third central through hole 1022 are set to be adapted to the diameter of the fixed shaft 15 and smaller than the second central through hole 132 It is set to fit the bore of the transmission shaft 1021 of the turbine 102 . That is, the two sections of central through holes with different diameters provided at the axial center position of the roller device 13 are respectively adapted to be relatively rotatable to the fixed shaft and radially rotated to transmit to the turbine.

As shown in FIG. 6 , the length L2 of the second central through hole 132 on the roller assembly 13 for fitting the transmission shaft 1021 of the turbine 102 is set to be one third to three thirds of the total height of the central shaft of the roller assembly 13 between two and a half. That is, the transmission shaft 1021 only passes through half the length of the axial center position of the roller assembly 13, not only the transmission shaft 1021 and the roller assembly 13 can achieve good rotation transmission and fixation, but also a proper displacement adjustment can be achieved during installation. The length L2 of the second central through hole 132 is equal to the length L1 of the first central through hole 131 for fitting the fixed shaft 15 .

As shown in FIG. 2 and FIG. 8 , the driving mechanism 10 further includes a limiting plate 104 . The limiting plate 104 is configured to have a limiting hole 1041 that is adapted to the end of the worm 101 , and is configured to fit with the inner wall of the pump head cover plate 11 . The supporting pieces 1042 fixed against each other.

As shown in FIG. 11 , the two sides of the limiting plate 104 are slidably fixed to the guide grooves 127 provided on the base 12 of the pump body.

As shown in FIG. 3 and FIG. 4 , the pump head cover 11 is also provided with a fixed guide shaft 114 , which is fitted and buckled with the fixed guide shaft hole post 128 provided in the pump body base 12 . In the process of installing the whole peristaltic pump product, the cooperation of the fixed guide shaft 114 and the fixed guide shaft hole post 128 not only realizes the guiding function, but also makes the whole peristaltic pump product more stable and not easy to deform and has good rigidity.

As shown in FIG. 7 , the present invention also discloses an assembly method of a peristaltic pump with good rigidity and easy installation, which is used for the production of the peristaltic pump. By setting a fixed shaft inside the peristaltic pump, the rotating space is realized when the turbine worm is meshed during the installation process. , not only improves the overall rigidity of the peristaltic pump, but also realizes a more convenient installation method, especially suitable for automated production processes. The specific installation method steps are as follows:

A1. Positioning the worm: Position the worm at the corresponding position of the pump body base;

B1. Motor fixation: install and fix the motor on the motor base of the pump body base in step A1, and the motor drive shaft passes through the motor shaft hole of the pump body base and matches the inner hole of the worm to rotate and drive and fix it;

A2. Roller device combination: the roller is installed on the roller bracket, and the roller cover is buckled to form the roller device. The drive shaft of the turbine is fixed through the second central through hole of the roller device, and the fixed shaft passes through the first central through hole of the roller device at the same time. After forming an integral roller device combination with the third central through hole of the turbine, the hose device fixes the periphery of the roller device combination;

B2. Pump head cover plate: one end of the fixed shaft of the roller device combination in step A2 can be relatively rotatably fixed to the pump head cover plate, and fixed to the other end of the turbine installation;

D. Overall combination: Combine the pump body base with the worm and motor assembled in step B1 and the pump head cover roller device assembled in step B2 for combined installation to form the whole peristaltic pump. During the installation process, the pump body The worm and motor in the base are fixed relative to the base of the pump body and do not rotate and move. During the installation, when the turbine and the worm are engaged, only the turbine in the pump head cover roller device combination is adjusted to rotate and fretting to realize the meshing of the gears.

As shown in FIG. 8 , because the motor shaft cannot rotate when the motor 103 is not energized, and during the assembly process of the turbine 102 and the worm 101, the teeth need to be aligned and engaged, so the assembled worm cannot be adjusted to rotate To realize the engagement of the gears, the installation process of the present invention allows the turbine to have a flexible rotation adjustment space, which just solves the problem that the meshing rotation of the gears requires space adjustment when the turbine and the worm are installed.

As shown in Figure 6, in the setting of the transmission shaft of the turbine in the step A2, the length of the transmission shaft is set to be between one-third and two-thirds of the total height of the central shaft of the roller device. The design is half the length of the total height of the central shaft. That is, it is more suitable for the turbine to have a space that can be adjusted up and down without disengagement during the installation process, and realize flexible rotation adjustment.

As shown in Figures 7 and 8, in step A1, the worm is fixed in the base of the pump body, and a limit plate is used to snap and fix to the slot provided at the position of the motor shaft hole of the base of the pump body. The limit plate presses the worm to prevent the worm from moving axially, which affects the installation and fixation of the entire drive device, especially the motor.

As shown in FIG. 7 and FIG. 3 and FIG. 4 , in the overall assembly of step C, guided fixing is also performed by a cylindrical fixed guide shaft and a cylindrical fixed guide shaft hole post. The fixed guide shaft and the fixed guide shaft hole column are respectively arranged on the pump head cover and the pump body base. During the process of installing the whole peristaltic pump product, the fixed guide shaft and the fixed guide shaft hole column cooperate not only to realize the guiding function, but also to make The whole peristaltic pump product is more stable and not easy to deform and has good rigidity.

The above is one embodiment of the present invention. In addition, it should be noted that all equivalent or simple changes made according to the structures, features and principles described in the concept of this patent are included in the protection scope of this patent.

Claims (10)

1. The peristaltic pump with good rigidity and easy installation comprises a driving mechanism (10), a pump head cover plate (11), a pump body base (12), a roller assembly (13) and a hose device (14), wherein the driving mechanism (10) comprises a worm (101), a turbine (102) and a motor (103), and is characterized by further comprising a fixed shaft (15), two ends of the fixed shaft (15) are respectively fixed on the pump head cover plate (11) and the pump body base (12), and a first central through hole (131) which penetrates through the axial center of the roller assembly (13) is arranged to form relative rotation and fixation;

the roller assembly (13) further comprises a second section of central through hole (132), and a transmission shaft (1021) of a turbine (102) of the driving mechanism (10) is fixed on the second section of central through hole (132) in a rotating and transmitting manner; the fixed shaft (15) penetrates through a third central through hole (1022) arranged at the axial central position of the turbine (102) to form a relative rotation fixation; wherein the first central through hole (131) and the third central through hole (1022) are arranged to fit the aperture of the stationary shaft (15) smaller than the aperture of the second central through hole (132) arranged to fit the drive shaft (1021) of the turbine (102).

2. A peristaltic pump with good rigidity and ease of installation as claimed in claim 1, characterized in that the length of the second central through hole (132) of the roller assembly (13) for adapting the drive shaft (1021) of the turbine (102) is arranged to be between one third and two thirds of the total height of the central shaft of the roller assembly (13).

3. A peristaltic pump, rigid and easy to mount, according to claim 2, characterized in that said second central through hole (132) has a length equal to the length of said first central through hole (131) for fitting said fixed shaft (15).

4. A peristaltic pump with good rigidity and easy installation as claimed in claim 1, characterized in that said driving mechanism (10) further comprises a limiting plate (104), said limiting plate (104) is provided with a limiting hole (1041) adapted to the end of the worm (101), and a supporting plate (1042) fixed against the inner wall of the pump head cover plate (11).

5. A peristaltic pump with good rigidity and easy installation, as claimed in claim 4, characterized in that said plate (104) is fixed in sliding manner on its two sides to guide slots (127) provided on the base (12) of the pump body.

6. A peristaltic pump with high rigidity and easy installation as claimed in claim 1, wherein the pump head cover plate (11) further comprises a fixed guide shaft (114) adapted to be engaged with a fixed guide shaft hole pillar (128) provided in the pump body base (12).

7. An assembly method of a peristaltic pump with good rigidity and easy installation is used for producing and manufacturing the peristaltic pump with good rigidity and easy installation as claimed in any claim, and is characterized in that a fixed shaft is arranged in the peristaltic pump, and a space is rotated when a turbine and a worm are meshed in the installation process, so that the overall rigidity of the peristaltic pump is improved, a more convenient installation method is realized, and the assembly method is particularly suitable for an automatic production process, and comprises the following steps:

A1. positioning a worm: positioning the worm at a corresponding position of the pump body base;

B1. fixing a motor: the motor is fixedly installed on a motor base of the pump body base in the step A1, and a motor transmission shaft penetrates through a motor shaft hole of the pump body base and is matched with an inner hole of the worm to be rotationally fixed;

A2. the roller device combination: the roller is arranged on the roller bracket and buckled with the roller cover plate to form a roller device, a transmission shaft of the turbine penetrates through a second central through hole of the roller device to be fixed, the fixed shaft simultaneously penetrates through a first central through hole of the roller device and a third central through hole of the turbine to form an integral roller device combination, and the hose device fixes the periphery of the roller device combination;

B2. pump head apron: a step a2, in which one end of the fixed shaft of the roller device combination is fixed to the pump head cover plate in a relatively rotatable manner, and the other end of the fixed shaft is fixed to the other end on which the turbine is mounted;

C. integral combination: and (3) combining and installing the pump body base assembled with the worm and the motor in the step B1 and the pump head cover plate roller device assembly assembled in the step B2 to form a whole peristaltic pump, wherein in the installation process, the worm and the motor in the pump body base are fixed and do not rotate and move relative to the pump body base, and in the installation process, the worm and the worm are only adjusted to rotate and slightly move when being meshed, so that the meshing of gears is realized.

8. A method for assembling a peristaltic pump with good rigidity and easy installation as claimed in claim 7, wherein in the step A2, the length of the drive shaft is set to be between one third and two thirds of the total height of the central shaft of the roller device, and the optimal design is half of the total height of the central shaft.

9. The method for assembling a peristaltic pump with good rigidity and easy installation as claimed in claim 7, wherein in the step a1, the worm is fixed in the pump body base, and the limit plate is engaged with a slot provided at a motor shaft hole of the pump body base.

10. A method for assembling a peristaltic pump with good rigidity and easy installation as claimed in claim 5, wherein the step C is further performed by guiding and fixing a cylindrical fixed guide shaft and a cylindrical fixed guide shaft hole column in the integral assembly.

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