Micro elliptical gear flow sensor

Abstract

The utility model discloses a micro elliptical gear flow sensor, and belongs to the technical field of elliptical gear flow sensors. The tiny elliptical gear flow sensor has the advantages of being easy and convenient to disassemble, improving maintenance efficiency, reducing maintenance cost and reducing damage risks, when the two tiny elliptical gears need to be disassembled for maintenance and replacement, the two anti-skid rings are rotated, so that the threaded rod connected through the connecting ring is driven to rotate, and therefore the two tiny elliptical gears can be disassembled conveniently. According to the device, the threaded rod faces upwards and does not abut against the four limiting clamping blades, so that the four limiting clamping blades cancel limiting clamping of the positioning rod, then a user can disassemble the positioning rod and the tiny elliptical gear, and compared with traditional design, the device greatly simplifies the disassembly process, reduces the operation complexity and improves the disassembly efficiency. And the time required by repair and maintenance is obviously reduced, and the dependence on professional techniques and tools in the maintenance process is also reduced, so that the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of elliptical gear flow sensor, specifically relating to a miniature elliptical gear flow sensor. Background Technology

[0002] An elliptical gear flow sensor is a device for measuring fluid flow rate. It uses two meshing elliptical gears to measure the volume of fluid flowing through the sensor. As the fluid flows, it drives the gears to rotate; the number of rotations is proportional to the volume of fluid passing through. The sensor calculates the fluid flow rate based on the number of gear rotations. This sensor is typically used to measure high-viscosity liquids and features high accuracy and good repeatability.

[0003] Existing micro elliptical gear flow sensors often suffer from limitations in their structural design, making disassembly of the elliptical gears extremely cumbersome. This not only increases operational complexity but also causes significant inconvenience in daily maintenance and upkeep. Over extended periods of use, sensor components may wear down or require cleaning, but the difficulty of disassembly often leads to excessively long repair times, impacting the normal operating efficiency of the equipment and potentially causing a decrease in the accuracy of the detection data. These drawbacks result in substantial maintenance pressure and costs for users. Therefore, a micro elliptical gear flow sensor is proposed to address these issues. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a miniature elliptical gear flow sensor, which has the advantages of easy disassembly, improved maintenance efficiency, reduced maintenance costs, and reduced risk of damage.

[0005] To achieve the above objectives, this utility model provides a micro elliptical gear flow sensor, including a micro elliptical gear flow sensor body;

[0006] The micro elliptical gear flow sensor body has a cavity and two sets of limiting engagement components are assembled inside the cavity.

[0007] The limiting engagement assembly includes a circular seat, a base plate is mounted on the lower bottom wall of the circular seat, four limiting leaflets are mounted around the upper surface of the base plate, and the upper ends of the four limiting leaflets are all arc-shaped. An installation ring is mounted on the upper end of the circular seat, and a threaded rod is threadedly connected to the inner wall of the installation ring. The threaded rod has a through hole and a groove at its lower end. The arc-shaped upper ends of the four limiting leaflets abut against the groove at the lower end of the threaded rod. A connecting ring is mounted on the lower end of the threaded rod and is sleeved on the outside of the circular seat. The lower end of the connecting ring extends through the lower end surface of the micro elliptical gear flow sensor body.

[0008] A positioning rod is provided between the four limiting leaflets and the positioning rod passes through the threaded rod through hole. A small elliptical gear is assembled on the outside of the positioning rod.

[0009] As a further improvement of this utility model, the two micro elliptical gears are meshed together and a deep groove ball bearing is fitted at the connection between the micro elliptical gears and the positioning rod.

[0010] As a further improvement of this utility model, anti-slip rings are fitted on the outer side of the lower ends of both connecting rings.

[0011] As a further improvement of this utility model, the inner wall of the lower end of the ring seat is equipped with four locking blocks in a circumferential manner, and the outer side of the chassis is provided with four locking slots in a circumferential manner, with the four locking blocks respectively engaging in the four locking slots.

[0012] As a further improvement of this utility model, both of the connecting rings are fitted with sealing rings at the lower end face of the micro elliptical gear flow sensor body.

[0013] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0014] This utility model discloses a miniature elliptical gear flow sensor. Through the interlocking of components within two sets of limiting engagement assemblies, when the two miniature elliptical gears need to be disassembled for maintenance or replacement, rotating the two anti-slip rings causes the threaded rod connected by the connecting ring to rotate, causing the threaded rod to move upwards and release its contact with the four limiting leaflets. This releases the limiting leaflets from their clamping position on the positioning rod, allowing the user to disassemble the positioning rod and the miniature elliptical gears. Compared to traditional designs, this device greatly simplifies the disassembly process, reduces operational complexity, significantly reduces the time required for maintenance and repair, and reduces reliance on specialized techniques and tools during maintenance, thereby reducing maintenance costs. Because the disassembly and installation process is simpler, it is less likely to damage other components of the miniature elliptical gear flow sensor body, reducing the risk of equipment damage due to improper operation during maintenance and ensuring the long-term reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0016] Figure 2 This is a top view diagram of the overall disassembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall installation structure of this utility model from below;

[0018] Figure 4This is a schematic diagram of the installation structure of the limiting engagement component, positioning rod, and micro elliptical gear of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation structure of the limiting engagement component of this utility model;

[0020] Figure 6 This is a schematic diagram of the installation cross-sectional structure of the limiting engagement component of this utility model;

[0021] Figure 7 This is a schematic diagram of the disassembly cross-sectional structure of the limiting and engaging component of this utility model.

[0022] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Miniature elliptical gear flow sensor body; 2. Limiting engagement assembly; 20. Circular seat; 201. Locking block; 21. Chassis; 22. Limiting locking leaf; 23. Mounting ring; 24. Threaded rod; 25. Connecting ring; 26. Anti-slip ring; 3. Positioning rod; 31. Deep groove ball bearing; 4. Miniature elliptical gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Depend on Figure 1-7 A miniature elliptical gear flow sensor is provided, comprising a miniature elliptical gear flow sensor body 1.

[0026] The body 1 of the miniature elliptical gear flow sensor has a cavity and two sets of limiting engagement components 2 are assembled inside the cavity;

[0027] The limiting engagement assembly 2 includes a circular seat 20. A base 21 is mounted on the bottom wall of the lower end of the circular seat 20. Four limiting leaf blades 22 are mounted around the upper end of the base 21, and each of the four limiting leaf blades 22 has an arc surface at its upper end. An installation ring 23 is mounted on the upper end of the circular seat 20. A threaded rod 24 is connected to the inner wall of the installation ring 23 by threaded engagement. The threaded rod 24 has a through hole and a groove at its lower end. The arc surfaces at the upper ends of the four limiting leaf blades 22 abut against the groove at the lower end of the threaded rod 24. A connecting ring 25 is mounted on the lower end of the threaded rod 24 and is sleeved on the outside of the circular seat 20. The lower end of the connecting ring 25 extends through the lower end surface of the micro elliptical gear flow sensor body 1.

[0028] A positioning rod 3 is provided between the four limiting leaf 22 and passes through the through hole of the threaded rod 24. A small elliptical gear 4 is assembled on the outside of the positioning rod 3.

[0029] In this embodiment, through the mutual cooperation between the components within the two sets of limiting engagement assemblies 2, when it is necessary to disassemble the two micro elliptical gears 4 for maintenance and replacement, the two anti-slip rings 26 are rotated, thereby driving the threaded rod 24 connected by the connecting ring 25 to rotate, causing the threaded rod 24 to move upward and cancel its contact with the four limiting leaflets 22, thus causing the four limiting leaflets 22 to release their limiting clamping on the positioning rod 3. Subsequently, the user can disassemble the positioning rod 3 and the micro elliptical gears 4. Compared with the traditional design, this device greatly simplifies the disassembly process, reduces the complexity of operation, significantly reduces the time required for maintenance and repair, and also reduces the dependence on professional technology and tools during maintenance, thereby reducing maintenance costs. Because the disassembly and installation process is simpler, it is less likely to damage other components of the micro elliptical gear flow sensor body 1, reducing the risk of equipment damage due to improper operation during maintenance and ensuring the long-term reliability of the equipment.

[0030] Specifically, refer to Figure 1-2 Two tiny elliptical gears 4 are meshed together, and a deep groove ball bearing 31 is fitted at the connection between the tiny elliptical gears 4 and the positioning rod 3.

[0031] In this embodiment, by installing a deep groove ball bearing 31 at the connection between the micro elliptical gear 4 and the positioning rod 3, the micro elliptical gear 4 can rotate more smoothly, thus improving the overall stability.

[0032] Specifically, refer to Figure 1-5 Both connecting rings 25 have anti-slip rings 26 fitted on the outer side of their lower ends.

[0033] In this embodiment, by installing an anti-slip ring 26 on the lower outer side of the connecting ring 25, the user can easily rotate the connecting ring 25, improving operability.

[0034] Specifically, refer to Figure 1-7 The inner wall of the lower end of the ring seat 20 is equipped with four locking blocks 201 in a circumferential manner, and the outer side of the chassis 21 is provided with four locking slots in a circumferential manner, with the four locking blocks 201 respectively engaging in the four locking slots.

[0035] In this embodiment, the four locking blocks 201 are respectively engaged in the four slots of the chassis 21, thereby limiting the chassis 21.

[0036] Specifically, refer to Figure 1-3 Both connecting rings 25 are fitted with sealing rings at the lower end face of the micro elliptical gear flow sensor body 1.

[0037] In this embodiment, the sealing ring provided at the micro elliptical gear flow sensor body 1 through the connecting ring 25 is made of polytetrafluoroethylene low-friction material. This material has excellent wear resistance and low friction characteristics, which can reduce the resistance when the connecting ring 25 rotates and also play a waterproof role.

[0038] The present invention relates to a miniature elliptical gear flow sensor:

[0039] In actual use, when the user needs to disassemble the two micro elliptical gears 4, by rotating the two anti-slip rings 26, the threaded rod 24 connected by the connecting ring 25 is rotated, causing the threaded rod 24 to move upward and release its resistance to the four limiting leaf clips 22. This causes the four limiting leaf clips 22 to release their limiting clamping of the positioning rod 3, allowing the user to disassemble the positioning rod 3 and the micro elliptical gears 4. Conversely, when installing the micro elliptical gears 4, the positioning rod 3 is passed through the threaded rod 24 and inserted between the four limiting leaf clips 22. By rotating the anti-slip rings 26 in the opposite direction, the threaded rod 24 is rotated, causing the threaded rod 24 to move downward and gradually press the four limiting leaf clips 22. This causes the four limiting leaf clips 22 to center and clamp the outer wall of the positioning rod 3, thus completing the installation and fixing of the micro elliptical gears 4.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A micro elliptical gear flow sensor, comprising a micro elliptical gear flow sensor body (1), characterized in that: The micro elliptical gear flow sensor body (1) has a cavity and two sets of limiting clamping assemblies (2) are installed in the cavity; The limiting clamping assembly (2) comprises a circular seat (20), the lower end of the bottom wall of the circular seat (20) is provided with a bottom disc (21), the upper end surface of the bottom disc (21) is provided with four limiting clamping leaves (22) in a ring shape, the upper end of each limiting clamping leaf (22) has an arc surface, the upper end of the circular seat (20) is provided with a mounting ring (23), the inner wall of the mounting ring (23) is connected with a threaded rod (24) through thread engagement, the threaded rod (24) has a through hole and is provided with a groove at the lower end, the upper end arc surface of each limiting clamping leaf (22) abuts against the lower end groove of the threaded rod (24), the lower end of the threaded rod (24) is provided with a connecting ring (25) which is sleeved outside the circular seat (20), and the lower end of the connecting ring (25) extends through the lower end surface of the micro elliptical gear flow sensor body (1). A positioning rod (3) is arranged between the four limiting clamping leaves (22) and passes through the through hole of the threaded rod (24), and the outer portion of the positioning rod (3) is provided with a micro elliptical gear (4).

2. The micro-oval gear flow sensor of claim 1, wherein, The two micro elliptical gears (4) are connected in meshing mode, and a deep groove ball bearing (31) is arranged at the connection between the micro elliptical gear (4) and the positioning rod (3).

3. The micro-oval gear flow sensor of claim 1, wherein, The lower end of each connecting ring (25) is sleeved with an anti-skid ring (26) outside.

4. The micro-oval gear flow sensor of claim 1, wherein, The lower end inner wall of the circular seat (20) is provided with four clamping blocks (201) in a ring shape, the outer portion of the bottom disc (21) is provided with four clamping grooves in a ring shape, and the four clamping blocks (201) are clamped in the four clamping grooves, respectively.

5. The micro-oval gear flow sensor of claim 1, wherein, The two connecting rings (25) are provided with sealing rings at the lower end surfaces of the micro elliptical gear flow sensor body (1).

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