A wheel frame structure and a peristaltic pump head

Abstract

This utility model provides a wheel frame structure, including a pair of wheel frame plates arranged parallel to each other front and rear. Multiple rollers are mounted on the wheel frame plates, with both ends of each roller fixed to the front and rear wheel frame plates respectively. An elastic abutment is provided between one or both ends of each roller and the wheel frame plate. This elastic abutment presses against the roller, reducing noise generated by roller collision and vibration. The elastic abutment also provides axial flexible support, allowing the roller to undergo slight elastic deformation upon impact, thereby absorbing vibration energy. Furthermore, the parallel arrangement of the front and rear wheel frame plates forms a stable frame structure, which, together with the elastic abutment, achieves three-dimensional vibration suppression, creatively solving the noise problem of wheel frame structures. This utility model also provides a peristaltic pump head with corresponding noise reduction characteristics.

Description

Technical Field

[0001] This utility model relates to the field of fluid pumping technology, and in particular to a wheel frame structure and a peristaltic pump head. Background Technology

[0002] A peristaltic pump is a positive displacement pump that uses rotating or reciprocating rollers (or pressure blocks) to compress a flexible tubing, thus directing the flow of fluid within the tubing. Peristaltic pumps are ideal for conveying sensitive, corrosive, or high-purity fluids due to their pollution-free operation, high precision, and ease of maintenance. Their core components typically include a pump head, roller frame, and tubing.

[0003] Peristaltic pumps may generate mechanical noise during operation, affecting the working environment or equipment lifespan. This is primarily due to an imbalance in the roller frame (rotor). Furthermore, traditional peristaltic pumps typically use rigid fixing between the rollers and the frame plate (e.g., bolted or interference fit). During high-speed rotation, even slight imbalances can cause high-frequency collisions between the rollers and the hose or frame, producing a "clicking" noise. To address this issue, this application proposes a novel technical solution to significantly reduce the operating noise of peristaltic pumps and extend their service life. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a wheel frame structure and a peristaltic pump head, and the technical solution adopted is as follows:

[0005] A wheel frame structure includes a pair of wheel frame plates arranged in parallel front to back, with a plurality of rollers provided on the wheel frame plates, the two ends of the rollers being fixed to the wheel frame plates arranged in front to back respectively; and an elastic abutment is provided between one or both ends of the rollers and the wheel frame plates.

[0006] According to an embodiment of the present invention, in a wheel frame structure, the elastic abutting part is a spring, and the spring abuts against the end of the roller.

[0007] According to an embodiment of the present utility model, the roller is a cylinder with a hollow inner core, and multiple roller fixing shafts are fixed on one of the roller frame plates. The roller fixing shafts pass through the inner core of the roller and are fixed to the roller frame plate on the other side. The spring is fitted onto the roller fixing shaft.

[0008] According to an embodiment of the present utility model, a wheel frame structure is provided on one wheel frame plate with a rotating shaft hole and on the other wheel frame plate with a rotating shaft fixing seat.

[0009] A peristaltic pump head includes the wheel frame structure described in any one of the above; it also includes a drive motor and a hose.

[0010] The peristaltic pump head according to an embodiment of the present invention further includes a fixed chamber plate, a fixed chamber is provided at the front end of the fixed chamber plate, the wheel frame structure is fitted inside the fixed chamber and can rotate freely in a controlled manner inside the fixed chamber, the hose is provided on the wheel frame structure, and the fluid inlet end and fluid outlet end of the hose are exposed outside the fixed chamber; the drive motor is fixed to the rear end of the fixed chamber plate.

[0011] According to the peristaltic pump head of this utility model embodiment, the motor shaft of the drive motor passes through the fixed chamber plate and is fixed on the rotating shaft hole, and the end of the motor shaft is fixed on the rotating shaft fixing seat.

[0012] According to an embodiment of the present invention, a fixed chamber cover is fixedly connected to the front end of the fixed chamber of the peristaltic pump head.

[0013] According to an embodiment of the present invention, the peristaltic pump head is provided with a fixed rod seat on the fixed compartment plate, a fixed rod sleeve is provided on the outer periphery of the fixed compartment cover, a fixed rod is provided on the fixed rod sleeve, and the fixed rod passes through the fixed rod sleeve and is locked into the fixed rod seat.

[0014] According to an embodiment of the present invention, the peristaltic pump head has a top ring integrally formed on the top of the fixed compartment cover, and the top ring has a reinforcing rib integrally extended outward, and the reinforcing rib is connected by a fixing rod sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention provides a wheel frame structure with an elastic abutment between the roller end and the wheel frame plate. The elastic abutment presses against the roller, reducing noise generated by roller collision and vibration. Simultaneously, the elastic abutment provides axial flexible support, allowing the roller to undergo slight elastic deformation upon impact, thereby absorbing vibration energy. Furthermore, the parallel arrangement of the front and rear wheel frame plates forms a stable frame structure, which, together with the elastic abutment, achieves three-dimensional vibration suppression, creatively solving the noise problem of wheel frame structures. This invention also provides a peristaltic pump head with corresponding noise reduction characteristics. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a perspective view of some embodiments of the peristaltic pump head of this utility model. Figure 1 ;

[0019] Figure 2 This is a perspective view of some embodiments of the peristaltic pump head of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of some embodiments of the peristaltic pump head in this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the structure of some embodiments of the peristaltic pump head in this utility model. Figure 2 ;

[0022] Figure 5 This is a perspective view of some embodiments of the wheel frame structure in this utility model.

[0023] Explanation of key component symbols:

[0024] 10. Wheel frame plate; 20. Roller; 30. Spring; 40. Roller fixing shaft; 50. Rotating shaft hole; 60. Rotating shaft fixing seat; 70. Hose; 80. Drive motor; 90. Fixing compartment plate; 91. Fixing rod seat; 100. Fixing compartment; 110. Fixing compartment cover; 111. Fixing rod sleeve; 112. Top ring; 113. Reinforcing rib; 120. Fixing rod. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0026] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0027] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0028] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0029] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0030] This utility model provides a wheel frame structure, such as Figure 3 , 4 As shown in Figure 5, the device includes a pair of wheel frame plates 10 arranged in parallel front to back. Multiple rollers 20 are provided on the wheel frame plates 10, and the two ends of the rollers 20 are respectively fixed to the wheel frame plates 10 arranged in front to back. An elastic abutment is provided between one or both ends of the rollers 20 and the wheel frame plates 10.

[0031] In traditional peristaltic pumps, the roller 20 and wheel frame plate 10 are usually rigidly fixed (e.g., bolted or interference fit). During high-speed rotation, even a small imbalance can cause the roller 20 to collide with the hose 70 or wheel frame plate 10 at high frequency, generating a "clicking" noise. This invention provides an elastic abutment between the end of the roller 20 and the wheel frame plate 10. The elastic abutment holds the roller 20 in place, reducing the noise generated by the roller 20's collision and vibration. The elastic abutment also provides axial flexible support, allowing the roller 20 to undergo a small elastic deformation (approximately 0.1–0.3 mm) when subjected to impact, thereby absorbing vibration energy. Furthermore, the parallel arrangement of the front and rear wheel frame plates 10 forms a stable frame structure, which, together with the elastic abutment, can achieve three-dimensional vibration suppression, creatively solving the problem of noise generated by the wheel frame structure.

[0032] In one embodiment of this utility model, such as Figure 3 , 4 As shown in Figure 5, the elastic abutment is a spring 30, which abuts against the end of the roller 20.

[0033] In one embodiment of this utility model, such as Figure 3 , 4 As shown in Figure 5, the roller 20 is a cylinder with a hollow inner core. Multiple roller fixing shafts 40 are fixed on one of the wheel frame plates 10. The roller fixing shafts 40 pass through the inner core of the roller 40 and are fixed to the other wheel frame plate 10. The spring 30 is fitted onto the roller fixing shafts 40. According to the above scheme, the fixing of the roller 20 and the installation of the spring 30 are effectively achieved.

[0034] In one embodiment of this utility model, such as Figure 3 , 4As shown in Figure 5, a rotating shaft hole 50 is provided on one of the wheel frame plates 10, and a rotating shaft fixing seat 60 is provided on the other wheel frame plate 10.

[0035] A peristaltic pump head, such as Figure 1 , 2 As shown in Figures 3 and 4, it includes the aforementioned wheel frame structure; it also includes a drive motor 80 and a hose 70.

[0036] In one embodiment of this utility model, such as Figure 1 , 2 As shown in Figures 3 and 4, the system also includes a fixed chamber plate 90, a fixed chamber 100 is provided at the front end of the fixed chamber plate 90, the wheel frame structure is fitted inside the fixed chamber 100 and can rotate freely in a controlled manner within the fixed chamber 100, the hose 70 is provided on the wheel frame structure, and the fluid inlet end and fluid outlet end of the hose 70 are exposed outside the fixed chamber 100; a fixed chamber cover 110 is fixedly connected to the front end of the fixed chamber 100; the drive motor 80 is fixed to the rear end of the fixed chamber plate 90, the motor shaft of the drive motor 80 passes through the fixed chamber plate 90 and is fixed on the rotating shaft hole 20, and the end of the motor shaft is fixed on the rotating shaft fixing seat 60.

[0037] This embodiment uses a fixed chamber for encapsulation, and the closed structure can absorb the vibration noise of the wheel frame. While retaining the advantages of elastic noise reduction, it significantly improves the environmental adaptability, maintenance convenience and long-term operational stability of the peristaltic pump.

[0038] In one embodiment of this utility model, such as Figure 1 , 2 As shown in Figures 3 and 4, a fixing rod seat 91 is provided on the fixing compartment plate 90, and a fixing rod sleeve 111 is provided on the outer periphery of the fixing compartment cover 110. A fixing rod 120 is provided on the fixing rod sleeve 111, and the fixing rod 120 passes through the fixing rod sleeve 111 and is locked into the fixing rod seat 91.

[0039] To further strengthen the connection between the fixed cover 110 and the fixed rod sleeve 111, in one embodiment of this utility model, such as Figure 1 , 2 As shown in Figures 3 and 4, a top ring 112 is integrally formed on the top of the fixed compartment cover 110, and a reinforcing rib 113 extends outward from the top ring 112. The reinforcing rib 113 is connected to the fixed rod sleeve.

[0040] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A wheel frame structure, characterized in that, It includes a pair of wheel frame plates (10) arranged in parallel front to back, and a plurality of rollers (20) are provided on the wheel frame plates (10). The two ends of the rollers (20) are respectively fixed to the wheel frame plates (10) arranged in front to back; and an elastic abutment is provided between one or both ends of the rollers (20) and the wheel frame plates (10).

2. The wheel frame structure according to claim 1, characterized in that, The elastic abutment is a spring (30), which abuts against the end of the roller (20).

3. The wheel frame structure according to claim 2, characterized in that, The roller (20) is a cylinder with a hollow inner core. Multiple roller fixing shafts (40) are fixed on one of the wheel frame plates (10). The roller fixing shafts (40) pass through the inner core of the roller (20) and are fixed on the wheel frame plate (10) on the other side. The spring (30) is fitted onto the roller fixing shafts (40).

4. A wheel frame structure according to claim 3, characterized in that, A rotating shaft hole (50) is provided on one of the wheel frame plates (10), and a rotating shaft fixing seat (60) is provided on the other wheel frame plate (10).

5. A peristaltic pump head, characterized in that, It includes the wheel frame structure as described in any one of claims 1 to 4; it also includes a drive motor (80) and a hose (70).

6. A peristaltic pump head according to claim 5, characterized in that, It also includes a fixed chamber plate (90), a fixed chamber (100) is provided at the front end of the fixed chamber plate (90), the wheel frame structure is fitted inside the fixed chamber (100) and can be freely rotated in a controlled manner inside the fixed chamber (100), the hose (70) is provided on the wheel frame structure, and the fluid inlet end and fluid outlet end of the hose (70) are provided to be exposed outside the fixed chamber (100); the drive motor (80) is fixed to the rear end of the fixed chamber plate (90).

7. A peristaltic pump head according to claim 6, characterized in that, The motor shaft of the drive motor (80) passes through the fixed chamber plate (90) and is fixed on the rotating shaft hole (50), and the end of the motor shaft is fixed on the rotating shaft fixing seat (60).

8. A peristaltic pump head according to claim 7, characterized in that, A fixed compartment cover (110) is fixedly connected to the front end of the fixed compartment (100).

9. A peristaltic pump head according to claim 8, characterized in that, A fixing rod seat (91) is provided on the fixing compartment plate (90), and a fixing rod sleeve (111) is provided on the outer periphery of the fixing compartment cover (110). A fixing rod (120) is provided on the fixing rod sleeve (111), and the fixing rod (120) passes through the fixing rod sleeve (111) and is locked into the fixing rod seat (91).

10. A peristaltic pump head according to claim 9, characterized in that, A top ring (112) is integrally formed on the top of the fixed compartment cover (110), and a reinforcing rib (113) extends outward from the top ring (112) and is connected to the fixed rod sleeve (111).

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