A peristaltic pump device for recycling lubricating oil of a hose

Abstract

The utility model discloses a kind of peristaltic pump devices of hose lubricating oil recycling. Main structure includes base, hose, pump head, gyro wheel assembly and oil scraping component, base is equipped with hose on top, complete circle structure is formed by the upper semicircular arc portion formed by hose and the lower semicircular arc portion formed by base main body, the central arrangement of complete circle structure has rotatable pump head, gyro wheel assembly and oil scraping component are provided on the outer periphery of pump head, after gyro wheel assembly and oil scraping component, the inner periphery of complete circle structure is connected with the outer periphery of pump head. The utility model is simple in structure, high in reliability, easy to manufacture, and the material of whole body is easy to select, material cost and processing cost are low, the use amount of hose lubricating oil can be reduced, the service life of hose is prolonged, the frequency of smearing lubricating oil is reduced, hose friction noise is reduced, and it can be applied to various traditional peristaltic pumps.

Description

Technical Field

[0001] This utility model belongs to the field of pump structure design, and specifically relates to a peristaltic pump device for circulating lubricating oil in a hose. Background Technology

[0002] A peristaltic pump uses rollers that intermittently rotate and roll on a hose, squeezing the hose to form a closed chamber, thus propelling the fluid forward. However, after each squeeze, the rollers push the lubricating oil on the hose to both the liquid end and the inlet end, causing a continuous reduction in lubricating oil. This reduction in lubricating oil between the hose and the rollers leads to a shorter hose life and increased noise.

[0003] Existing solutions for reduced lubricating oil in peristaltic pumps mainly involve frequently adding lubricating oil and replacing hoses, but these methods are complex, inconvenient, and can easily cause hose breakage and interruption of operation.

[0004] Currently, there is a lack of an economical and effective device to alleviate the reduction of lubricating oil in peristaltic pump hoses. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a peristaltic pump device for circulating lubricating oil in a hose. This invention utilizes a spring, scraper, base, hose, pump head, and rollers to circulate the lubricating oil in the hose, effectively reducing the frequency of lubricating oil additions, extending hose lifespan, and reducing hose friction noise.

[0006] The technical solution adopted by this utility model to solve its technical problem is: The main structure of this utility model includes a hose, a pump head, and a roller assembly, as well as a base, a roller assembly, and an oil scraping assembly. The hose is mounted on the base, and the upper semi-circular part formed by the hose and the lower semi-circular part formed by the base body form a complete circular structure. A rotatable pump head is arranged in the center of the complete circular structure. The roller assembly and the oil scraping assembly are arranged on the outer periphery of the pump head. The roller assembly and the oil scraping assembly are connected to the inner periphery of the complete circular structure under the drive of the pump head to rotate.

[0007] The base has symmetrical vertical holes at both ends, the radius of which is the same as that of the hose, and the vertical holes are used to pass the hose through.

[0008] The device includes multiple roller assemblies and multiple oil scraping assemblies, which are arranged alternately and sequentially around the pump head in a circumferential direction. The outer circumference of the pump head is supported and connected to the inner circumference of the complete circular structure through the roller assemblies or oil scraping assemblies, so that the pump head is supported at the center of the complete circular structure.

[0009] The roller assembly includes a connecting rod and a roller. The connecting rod is arranged radially, with its inner end fixed to the outer circumferential surface of the pump head and its outer end hinged to a roller for squeezing and rolling into the hose.

[0010] The oil scraping assembly includes a spring and an oil scraper blade. The spring is arranged radially, with its inner end fixed to the outer circumferential surface of the pump head and its outer end fixedly connected to the oil scraper blade.

[0011] The upper surface of the base is designed as a simulated arc tube with the same shape and size as the hose, and the surface of the simulated arc tube of the base and the surface of the hose are complementary to the oil scraper.

[0012] The radius of the arc of the base's imitation arc tube is the same as the bending radius of the hose, r=50mm~100mm; the radius of the surface of the base's imitation arc tube is the same as the outer diameter of the hose.

[0013] The scraper blade mainly consists of two wedges and a cylinder. The cylinder is arranged radially, with a spring fixedly connected to its inner end and two wedges connected to its outer end. Each wedge is a prism with an isosceles right-angled triangle cross-section. One end of the wedge is fixedly connected to the cylinder, and the other end has a semi-circular arc hole that matches the hose, for fitting and connecting with the inner circumference of the complete circular structure. The two wedges are symmetrically arranged side by side on both sides with their respective isosceles right-angled triangle cross-sections. One base angle of the cross-section of the isosceles right-angled triangle of each of the two wedges is fixedly connected as a connection point, which is fixedly connected to the cylinder. Furthermore, one side of the cross-section of the isosceles right-angled triangle of each of the two wedges is on the same straight line.

[0014] The scraper blades of the multiple scraper assemblies are all arranged in the direction of rotation of the pump head.

[0015] The scraper blade has a pointed hole at the junction of the semi-circular arc holes at the bottom of each of the two wedges. The pointed hole is used to retain lubricating oil.

[0016] The scraper blade and base are made of stainless steel or plastic.

[0017] The beneficial effects of this utility model are as follows: This invention utilizes a spring, scraper, base, hose, pump head, and roller to recycle lubricating oil, effectively reducing the frequency of lubricating oil additions and extending the service life of the hose.

[0018] This utility model has a simple structure, high reliability, and is easy to manufacture. The materials used are easy to select, resulting in low material and processing costs. It can reduce the amount of lubricating oil used, extend the service life of the hose, and reduce the number of times lubricating oil needs to be applied, making it highly valuable for promotion. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the device of this utility model; Figure 2 This is a front view of the base proposed in this utility model; Figure 3This is a side view of the oil scraping assembly proposed in this utility model; Figure 4 This is a half-side view of the oil scraping component proposed in this utility model; Figure 5 This is a top view of the oil scraping component proposed in this utility model; Figure 6 This is an axial view of the oil scraping assembly proposed in this utility model; Figure 7 This is a cross-sectional view of the base proposed in this utility model.

[0020] In the diagram: 1. Spring; 2. Scraper blade; 3. Base; 4. Hose; 5. Pump head; 6. Roller. Detailed Implementation

[0021] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0022] This utility model protects a peristaltic pump device for recycling lubricating oil in a hose, with the research object being the recycling of lubricating oil in the peristaltic pump hose.

[0023] like Figure 1 As shown, the structure also includes a base 3, a roller assembly, and an oil scraping assembly. The base 3 is fixedly installed, and a hose 4 is mounted on the base 3. The two ends of the hose 4 are the liquid inlet and the liquid outlet, respectively. The upper semi-circular part formed by the hose 4 and the lower semi-circular part formed by the main body of the base 3 together form a complete circular structure. A rotatable pump head 5 is arranged in the center of the complete circular structure. The roller assembly and the oil scraping assembly are arranged on the outer periphery of the pump head 5. The roller assembly and the oil scraping assembly are in contact with the inner periphery of the complete circular structure under the drive of the pump head 5 to rotate.

[0024] The base 3 is formed by opening a semi-circular groove in the middle of the original cuboid structure, and the whole is a complete circle with a lower semi-circular arc.

[0025] like Figure 1 and Figure 2 As shown, vertical holes are symmetrically opened at both ends of the base 3. The radius of the holes is the same as the radius of the hose 4, R=2.5mm~15mm. The vertical holes are used to pass through the hose 4. The hose 4 is arranged with vertical holes extending downwards at both ends. The upper part between the two ends of the hose 4 is located on the base 3 and forms the upper semicircular arc of a complete circle.

[0026] like Figure 1 As shown, the device includes multiple roller assemblies and multiple oil scraping assemblies. The multiple roller assemblies and multiple oil scraping assemblies are arranged alternately and sequentially around the pump head 5 in the circumferential direction, so that the outer periphery of the pump head 5 is supported and connected to the inner periphery of the complete circular structure through the roller assemblies or oil scraping assemblies, so that the pump head 5 is supported at the center of the complete circular structure.

[0027] The pump head 5 is connected to an external rotary drive source, which rotates to drive the outer roller assembly and the oil scraper assembly to rotate. The roller assembly provides support and guidance, and the oil scraper assembly scrapes the lubricating oil onto the hose 4.

[0028] like Figure 1 As shown, the roller assembly includes a connecting rod and a roller 6. The connecting rod is arranged radially along the pump head 5. The inner end of the connecting rod is fixed to the outer circumferential surface of the pump head 5, and one end of the roller 6 is hinged to the outer end. The other end of the roller 6 is used to roll and connect with the inner circumferential surface of the complete circular structure. The roller 6 is used to squeeze and roll into the hose 4.

[0029] like Figure 1 As shown, the oil scraping assembly includes a spring 1 and an oil scraper 2. The spring 1 is arranged radially along the pump head 5 and is connected between the pump head 5 and the oil scraper 2. The connection method can be welding or gluing. The inner end of the spring 1 is fixed to the outer circumferential surface of the pump head 5, and the outer end of the spring 1 is fixedly connected to one end of the oil scraper 2. The other end of the oil scraper 2 is used to contact and connect with the inner circumferential surface of the complete circular structure.

[0030] The hose 4 passes through two holes in the base 3 to provide a path for the lubricating oil from the outlet to the inlet. The scraper 2 is located between the hose 4 and the pump head 5 to evenly apply the lubricating oil to the hose 4.

[0031] The spring 1 is connected to the pump head 5 and the scraper blade 2 at both ends, respectively, to control the scraper blade to keep close to the hose 4 and the base 3, so as to ensure that the scraper blade 1 can keep close to the hose 4 and the base 3 at all times when rotating.

[0032] The outer surface of the hose 4 is covered with lubricating oil. The lubricating oil is used to lubricate the contact between the roller 6 of the roller assembly and the hose 4. The pump head 5 drives the outer peripheral roller assembly and the oil scraping assembly to rotate synchronously. The rotation of the roller 6 of the roller assembly will squeeze the hose 4, pushing the liquid in the hose 4 in the direction of rotation to form a peristaltic operation.

[0033] like Figure 2 and Figure 7 As shown, the upper surface of the base 3 is machined into a pseudo-arc tube with the same shape and size as the hose 4. The surface of the pseudo-arc tube of the base 3 and the surface of the hose 4 are complementary to the oil scraper 2.

[0034] The radius of the arc of the imitation arc tube of the base 3 is the same as the bending radius of the hose 4 in the peristaltic pump, r=50mm~100mm; the radius of the surface of the imitation arc tube of the base 3 is the same as the outer diameter of the hose 4.

[0035] like Figure 1 and Figures 3-5 As shown, the scraper blade 2 is mainly composed of two wedges and a cylinder. The cylinder is arranged radially along the pump head 5. The inner end of the cylinder is fixedly connected to the outer end of the spring 1, and the outer end of the cylinder is connected to the two wedges.

[0036] like Figure 3 and Figure 4 As shown, each wedge is a prism with an isosceles right-angled triangle cross-section. One end of the wedge is fixedly connected to the cylinder, and the other end has a semi-circular arc hole that matches the hose 4. The radius of the hole is the same as the radius of the hose 4, R=2.5mm~15mm, which is used to tightly fit and connect with the inner circumference of the complete circular structure.

[0037] like Figure 5 As shown, two wedges are arranged symmetrically on both sides with their respective isosceles right-angled triangle cross sections. The two wedges are located on both sides of the hose 4. The symmetry plane between the two wedges coincides with the central symmetry plane of the complete circular structure. One base angle of the cross section of the isosceles right-angled triangle of each of the two wedges is fixedly connected as the connection point. The connection point is fixedly connected to the cylinder, and one side of the cross section of the isosceles right-angled triangle of each of the two wedges is on the same straight line.

[0038] The leg length of the isosceles right triangle is l = 2.5mm~15mm, and the total length of the wedge and cylinder of the oil scraper 2 is L = 50mm~100mm.

[0039] The scraper blades 2 of multiple scraper components are all arranged facing the direction of rotation and forward movement of the pump head 5, that is, the hypotenuse of the two wedge-shaped isosceles right triangles of the scraper blade 2 is arranged facing the direction of rotation and forward movement of the pump head 5.

[0040] like Figure 6 As shown, the oil scraper 2 has a pointed hole at the junction of the semi-circular arc holes at the bottom of each of the two wedges. The pointed hole is used to retain lubricating oil.

[0041] In practice, two tangent lines are set at the 75-degree angle of the bottom edge arc. The intersection of the two tangent lines and the semicircular arc hole form a pointed hole, with the intersection of the two tangent lines serving as the apex of the pointed hole. That is, viewed axially, the pointed hole is formed by two symmetrically arranged tangent lines that are tangent to the semicircular arc hole and then enclosed by the arc of the semicircular arc hole. The central angle occupied by the pointed hole is 50 degrees, with 25-degree angles on each side.

[0042] In practice, the two wedges of the scraper blade 2 are at a 45-degree angle, which can concentrate the lubricating oil on both sides of the scraper blade 2 towards the center of the scraper blade 2; the bottom of the scraper blade 2 is shaped with a semi-circular arc hole and a pointed hole, wherein the radius of the semi-circular arc hole is the same as the radius of the hose 4, and the pointed hole is tangent to the semi-circular arc hole. When the scraper blade 2 passes through the hose 4, a pointed hole is left in the center of the scraper blade 2 and the hose 4, and the pointed hole forms a certain gap. The lubricating oil 2 stays in the center of the hose 4 through the gap of the pointed hole.

[0043] The base 3 is tangent to the hose 4 on both sides, and the two are smoothly connected. The top is completely complementary to the scraper blade 2, and the scraper blade 2 will not leave any lubricating oil when it passes over the base.

[0044] This utility model relates to a spring-loaded connection between a scraper blade and a peristaltic pump head, with a base installed between two flexible hoses. When the peristaltic pump head rotates, when the scraper blade 2 reaches the inlet end of the hose 4, the spring is compressed, and the gap between the scraper blade 2 and the hose 4 leaves lubricating oil on the surface of the hose 4. When the scraper blade 2 reaches the outlet end of the hose 4, the spring gradually extends, and the scraper blade 2 presses tightly against the base, transporting the lubricating oil from the outlet end along the base to the inlet end, repeating the above process.

[0045] The working process of this utility model is as follows: When in use, the pump head 5 rotates. When the scraper blade 2 is located between the hose 4 and the pump head 5, the scraper blade 2 collects the lubricating oil on both sides of the hose 4 as it rotates. The lubricating oil remains in the center of the hose 4 through the gap of the pointed hole. When the scraper blade 2 is located between the base 3 and the pump head 5, the scraper blade 2 transports excess lubricating oil from the outlet end of the hose 4 to the inlet end of the hose 4 for the next cycle.

[0046] This invention can be applied to various traditional peristaltic pumps. It features a simple structure, high reliability, ease of manufacture, readily available materials, low material and processing costs, and can reduce the amount of lubricating oil used in the hoses, extend hose lifespan, reduce the frequency of lubrication application, and decrease hose friction noise. Therefore, it has significant potential for widespread application.

[0047] The above embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A peristaltic pump device for circulating lubricating oil through a hose, mainly comprising a hose (4), a pump head (5), and a roller assembly, characterized in that: It also includes a base (3), a roller assembly and an oil scraper assembly. A hose (4) is mounted on the base (3). The upper semicircular part formed by the hose (4) and the lower semicircular part formed by the main body of the base (3) form a complete circular structure. A rotatable pump head (5) is arranged in the center of the complete circular structure. A roller assembly and an oil scraper assembly are arranged on the outer periphery of the pump head (5). The roller assembly and the oil scraper assembly are connected to the inner periphery of the complete circular structure under the drive of the pump head (5) to rotate.

2. The peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 1, characterized in that: The base (3) has vertical holes symmetrically opened at both ends. The radius of the holes is the same as the radius of the hose (4). The vertical holes are used to pass through the hose (4).

3. The peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 1, characterized in that: The device includes multiple roller assemblies and multiple oil scraping assemblies, which are arranged alternately and sequentially around the pump head (5) in the circumferential direction, so that the outer circumference of the pump head (5) is supported and connected to the inner circumference of the complete circular structure through the roller assemblies or oil scraping assemblies, so that the pump head (5) is supported at the center of the complete circular structure.

4. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 1, characterized in that: The roller assembly includes a connecting rod and a roller (6). The connecting rod is arranged radially, with its inner end fixed to the outer circumferential surface of the pump head (5) and its outer end hinged to a roller (6). The roller (6) is used to squeeze and roll into the hose (4).

5. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 1, characterized in that: The oil scraping assembly includes a spring (1) and an oil scraper (2). The spring (1) is arranged radially, with the inner end of the spring (1) fixed to the outer circumferential surface of the pump head (5) and the outer end of the spring (1) fixedly connected to the oil scraper (2).

6. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 1, characterized in that: The upper surface of the base (3) is set as a pseudo-arc tube with the same shape and size as the hose (4), and the surface of the pseudo-arc tube of the base (3) and the surface of the hose (4) are complementary to the oil scraper (2).

7. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 5, characterized in that: The radius of the arc of the imitation arc tube of the base (3) is the same as the bending radius of the hose (4), r=50mm~100mm; the radius of the surface of the imitation arc tube of the base (3) is the same as the outer diameter of the hose (4).

8. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 5, characterized in that: The scraper blade (2) is mainly composed of two wedges and a cylinder. The cylinder is arranged radially, and the inner end of the cylinder is fixedly connected to a spring (1). The outer end of the cylinder is connected to two wedges. Each wedge is a column with an isosceles right triangle cross section. One end of the wedge is fixedly connected to the cylinder, and the other end is opened with a semi-circular arc hole that matches the hose (4) for connecting with the inner circumference of the complete circular structure. The two wedges are arranged symmetrically on both sides with their respective isosceles right triangle cross sections. One base angle of the cross section of the isosceles right triangle of each of the two wedges is fixedly connected as the connection point. The connection point is fixedly connected to the cylinder, and one side of the cross section of the isosceles right triangle of each of the two wedges is on the same straight line.

9. A peristaltic pump device for circulating lubricating oil in a flexible hose according to claim 8, characterized in that: The scraper blades (2) of the multiple scraper assemblies are all arranged in the direction of rotation of the pump head (5).

10. A peristaltic pump device for circulating lubricating oil in a hose according to claim 8, characterized in that: The scraper blade (2) has a pointed hole at the junction of the semi-circular arc holes at the bottom of the two wedges. The pointed hole is used to retain lubricating oil.

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