Adjustable angle travel actuator

Abstract

The utility model discloses an adjustable angle stroke executor relates to angle stroke executor technical field, including executor main part and clamping subassembly, is equipped with lifting assembly between executor main part and clamping subassembly, and lifting assembly is composed of gas collecting cylinder and telescopic pole column, and the gas collecting cylinder includes the fixed cylinder of open top fixed on clamping subassembly, and the bottom of fixed cylinder barrel is equipped with the gas injection nozzle, and the one -way valve is built -in in gas injection nozzle, the utility model discloses the setting through gas injection nozzle and rubber plug, utilizes the close adhesion characteristic of rubber plug and fixed cylinder inner wall, can divide the space below fixed cylinder inside into independent closed cavity. When executor main part passes through lifting assembly and clamping subassembly assembly connection factory, pre -pull executor main part makes rubber plug with telescopic pole column synchronous rise, the closed cavity space below rubber plug increases at this moment, and through gas injection nozzle, the gas of preset pressure is injected to the cavity, and with the help of the non -return action of one -way valve, ensure that the cavity pressure always keeps stable.

Description

Technical Field

[0001] This utility model relates to the field of angular stroke actuator technology, specifically to an adjustable angular stroke actuator. Background Technology

[0002] In the field of industrial control, electronic actuators for angular stroke control valves are used to receive control signals and convert them into displacement thrust or angular torque to achieve valve opening and closing control, which is of great significance to the stable operation of industrial processes. With the development of industrial automation, their application scenarios are becoming increasingly diverse, and the requirements for ease of installation and operational stability are constantly increasing.

[0003] The existing utility model patent, with publication number CN212056036U and titled "An Electronic Electric Actuator for an Angle-Stroke Control Valve," proposes a design comprising an actuator body, a lifting assembly, and a clamping assembly. The lifting assembly adjusts the actuator height to accommodate different valve installations, while the clamping assembly secures it to the pipeline. Specifically, the lifting assembly adjusts its height using a structure where a first support plate and a second support plate slide and engage, and fasteners lock the connection.

[0004] However, in actual use, it has been found that when the knob fasteners are released from the first and second support plates, if the operator is slightly negligent and fails to provide timely support and protection for the actuator body, the second support plate and the connected actuator body, due to the loss of the locking force provided by the fasteners, are very likely to move downwards rapidly under the influence of gravity. This could cause equipment collision damage due to the rapid fall of the actuator body, increasing maintenance costs and downtime risks. Utility Model Content

[0005] To solve the above-mentioned technical problems, an adjustable angular stroke actuator is provided, which solves the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable angular stroke actuator, comprising an actuator body and a clamping assembly distributed vertically, wherein a lifting assembly is provided between the actuator body and the clamping assembly;

[0007] The lifting assembly consists of an air collection cylinder and a telescopic rod.

[0008] The gas collecting cylinder includes a fixed cylinder with an open top that is fixed to the clamping assembly. The bottom of the fixed cylinder body is provided with an air injection nozzle, and the air injection nozzle has a built-in one-way valve.

[0009] The telescopic rod column includes a telescopic rod column that slides inside the top opening of the fixed cylinder. The top end of the telescopic rod column is fixedly connected to the actuator body. A rubber plug is tightly fitted to the bottom end of the telescopic rod column body. The outer wall of the rubber plug is tightly fitted to the inner wall of the fixed cylinder.

[0010] Preferably, the telescopic rod is provided with an exhaust channel, one end of which is connected to the interior of the fixed cylinder and the other end is connected to the external environment of the telescopic rod, and a pressure relief unit is provided inside the connection between the exhaust channel and the external environment.

[0011] Preferably, the exhaust channel includes a first venting channel erected inside the telescopic rod column, the bottom end of the first venting channel being connected to the interior of the fixed cylinder, and a second venting channel being provided at the top of the telescopic rod column body, the second venting channel being connected to the top of the first venting channel.

[0012] Preferably, the pressure relief unit includes a fixing ring fixed inside the vent of the second venting channel, and a sealing piece that abuts against one side of the fixing ring is also elastically slidably disposed inside the second venting channel.

[0013] Preferably, a connecting piece is also vertically fixed inside the second venting channel. The connecting piece is located on the side of the second venting channel away from the fixing ring, and a spring telescopic rod is connected between the connecting piece and the sealing piece.

[0014] Preferably, two slide rails are symmetrically fixed at the bottom of the fixed cylinder wall, and a shielding plate is slidably disposed between the two slide rails, the shielding plate corresponding to the air injection nozzle.

[0015] Preferably, a pressing block is provided on the inner side of the fixing ring to be fixed to the sealing piece.

[0016] Compared with the prior art, the advantages of this utility model are as follows: by setting up the air injection nozzle and the rubber plug, and utilizing the tight fit between the rubber plug and the inner wall of the fixed cylinder, the lower space inside the fixed cylinder can be divided into an independent closed cavity. When the actuator body is assembled and connected to the clamping assembly at the factory via the lifting assembly, the actuator body is pre-pulled up so that the rubber plug rises synchronously with the telescopic rod. At this time, the closed cavity space below the rubber plug increases accordingly. Gas at a preset pressure is injected into this cavity through the air injection nozzle, and the check valve ensures that the air pressure inside the cavity remains stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of one side of the lifting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the other side of the lifting assembly of this utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the lifting component of this utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point B.

[0023] The numbers on the map are:

[0024] 1. Actuator body; 2. Clamping assembly; 3. Fixed cylinder; 4. Telescopic rod column; 5. Rubber plug; 6. Air injection nozzle; 7. Air venting channel one; 8. Air venting channel two; 9. Fixed ring; 10. Sealing plate; 11. Pressing block; 12. Connecting plate; 13. Spring telescopic rod; 14. Slide rail; 15. Shielding plate. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] Reference Figure 1 As shown, an adjustable angular stroke actuator includes an actuator body 1 and a clamping assembly 2 distributed vertically, with a lifting assembly provided between the actuator body 1 and the clamping assembly 2.

[0027] Referring to the relevant content of the existing technology patent announcement number CN212056036U, entitled "An Electronic Electric Actuator for an Angle Stroke Control Valve", it can be seen that the actuator body 1 usually has the core function of driving the valve to rotate, and its structure may include a transmission component for outputting power and a corresponding control module; the clamping component 2 is generally composed of components such as clamping blocks that can cooperate with each other and screws for adjusting the distance between the clamping blocks, and the overall device is fixed by clamping the pipe with the clamping blocks.

[0028] As the actuator body 1 and clamping assembly 2 are already publicly available technical features, this case will not go into detail about their specific internal structure and conventional functions, but will only elaborate on the key improvement of this utility model - the lifting assembly between the actuator body 1 and the clamping assembly 2.

[0029] Example 1

[0030] Specifically, refer to Figure 2-6 As shown, it is worth noting that the lifting assembly consists of an air collection cylinder and a telescopic rod.

[0031] The gas collecting cylinder includes a fixed cylinder 3 with an open top that is fixed to the clamping assembly 2;

[0032] The telescopic rod column includes a telescopic rod column 4 that slides inside the top opening of the fixed cylinder 3, and the top end of the telescopic rod column 4 is fixedly connected to the actuator body 1;

[0033] The top of the wall of the fixed cylinder 3 is threaded with a locking stud that abuts against the body of the telescopic rod 4 (not shown in the figure).

[0034] With the fixed cylinder 3 and the telescopic rod 4, the telescopic rod 4 can slide stably along the fixed cylinder 3, so as to flexibly adjust the height of the actuator body 1; then, tighten the locking screw by turning the knob to make it press against the telescopic rod 4, so as to quickly fix the height of the actuator body 1, which is convenient and efficient.

[0035] Furthermore, referring to Figure 5 As shown, it is worth noting that the bottom of the fixed cylinder 3 is equipped with an air injection nozzle 6, which has a built-in one-way valve.

[0036] A rubber plug 5 is tightly fitted to the bottom end of the telescopic pole 4, and the outer wall of the rubber plug 5 is tightly fitted to the inner wall of the fixed cylinder 3.

[0037] By using the air injection nozzle 6 and the rubber plug 5, and taking advantage of the tight fit between the rubber plug 5 and the inner wall of the fixed cylinder 3, the lower space inside the fixed cylinder 3 can be divided into an independent closed cavity. When the actuator body 1 is assembled and connected to the clamping assembly 2 at the factory via the lifting assembly, the actuator body 1 is pre-pulled up so that the rubber plug 5 rises synchronously with the telescopic rod 4. At this time, the closed cavity space below the rubber plug 5 increases accordingly. Gas at a preset pressure is injected into this cavity through the air injection nozzle 6, and the check valve ensures that the air pressure inside the cavity remains stable.

[0038] In this way, in the factory condition, the telescopic rod 4 and the fixed cylinder 3 form a reliable pre-support through the gas pressure inside the cavity. This not only prevents the rubber plug 5 from sliding down arbitrarily due to bumps and shaking during transportation, ensuring structural stability, but also allows the gas pressure inside the cavity to work synergistically with the friction between the rubber plug 5 and the inner wall of the fixed cylinder 3 when the locking stud is released during subsequent on-site installation and adjustment. This provides stable damping for the descent of the actuator body 1, effectively suppressing its rapid descent due to gravity and significantly improving operational safety.

[0039] Example 2

[0040] Reference Figure 5 and Figure 6 As shown, it is worth noting that the telescopic rod 4 is provided with an exhaust channel. One end of the exhaust channel is connected to the inside of the fixed cylinder 3, and the other end is connected to the external environment of the telescopic rod 4. A pressure relief unit is provided inside the connection between the exhaust channel and the external environment.

[0041] The exhaust channel includes an exhaust channel 7 erected inside the telescopic rod 4. The bottom end of the exhaust channel 7 is connected to the inside of the fixed cylinder 3. An exhaust channel 8 is provided at the top of the telescopic rod 4. The exhaust channel 8 is connected to the top of the exhaust channel 7.

[0042] With the exhaust channel and pressure relief unit in place, during on-site installation and adjustment, pressing the pressure relief unit quickly opens the connection between the second venting channel 8 and the external environment of the telescopic rod 4, allowing the gas in the closed cavity inside the fixed cylinder 3 to be quickly discharged through the first venting channel 7 and the second venting channel 8. This breaks the original damping balance formed by the gas pressure and the friction of the rubber plug, allowing the actuator body 1 to be smoothly raised and lowered as needed to adapt to the connection of different valves.

[0043] Furthermore, referring to Figure 6 As shown, it is worth noting that the pressure relief unit includes a fixing ring 9 fixed in the discharge port of the second venting channel 8, and a sealing plate 10 that abuts against one side of the fixing ring 9 is also elastically slidably provided in the inner side of the second venting channel 8. A pressing block 11 that is fixed to the sealing plate 10 is provided in the inner side of the fixing ring 9.

[0044] A connecting piece 12 is also erected and fixed inside the second venting channel 8. The connecting piece 12 is located on the side of the second venting channel 8 away from the fixing ring 9. A spring telescopic rod 13 is connected between the connecting piece 12 and the sealing piece 10.

[0045] With the pressure relief unit in place, under normal conditions, the sealing plate 10 is pushed against the fixed ring 9 and tightly abuts against its side under the elastic action of the spring telescopic rod 13, which can seal the passage of the second venting channel 8 and ensure the stable air pressure in the sealed cavity of the fixed cylinder 3. When it is necessary to adjust the height of the actuator, pressing the pressing block 11 can drive the sealing plate 10 to move away from the fixed ring 9 against the elastic force of the spring telescopic rod 13, so that a gap is formed between the sealing plate 10 and the fixed ring 9. At this time, the passage between the second venting channel 8 and the external environment is quickly opened, and the gas in the fixed cylinder 3 can be discharged in sequence through the first venting channel 7, the second venting channel 8 and the gap, realizing rapid pressure relief. After releasing the pressing block, the elastic force of the spring telescopic rod 13 pushes the sealing plate 10 to reset and abut against the fixed ring 9 again, sealing the passage again and restoring the air pressure damping effect of the cavity.

[0046] Example 3

[0047] Reference Figure 3 and Figure 4 As shown, it is worth noting that two slide rails 14 are symmetrically fixed at the bottom of the fixed cylinder 3, and a shielding plate 15 is slidably installed between the two slide rails 14. The shielding plate 15 corresponds to the air injection nozzle 6.

[0048] With the slide rail 14 and the shielding plate 15, the slide rail 14 provides a stable sliding guide for the shielding plate 15, so that the shielding plate 15 can be accurately aligned with the air inlet nozzle 6. When leaving the factory or during non-inflating operations, the shielding plate 15 is slid to the position of the air inlet nozzle 6 to form a physical shield for the air inlet nozzle 6, which can effectively prevent dust and impurities from entering the air inlet nozzle 6 and the closed cavity inside the fixed cylinder 3, and avoid impurities from affecting the sealing performance of the one-way valve and blocking the air passage. When it is necessary to inflate or depressurize through the air inlet nozzle 6, the shielding plate 15 is slid away to expose the air inlet nozzle 6 for convenient operation.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable angular stroke actuator, comprising an actuator body (1) and a clamping assembly (2) distributed vertically, characterized in that, A lifting assembly is provided between the actuator body (1) and the clamping assembly (2); The lifting assembly consists of an air collection cylinder and a telescopic rod. The gas collecting cylinder includes a fixed cylinder (3) with an open top fixed to the clamping assembly (2), and an air injection nozzle (6) is provided at the bottom of the fixed cylinder (3). The air injection nozzle (6) has a built-in one-way valve. The telescopic rod column includes a telescopic rod column (4) that slides inside the top opening of the fixed cylinder (3). The top end of the telescopic rod column (4) is fixedly connected to the actuator body (1). A rubber plug (5) is tightly fitted to the bottom end of the telescopic rod column (4). The outer wall of the rubber plug (5) is tightly fitted to the inner wall of the fixed cylinder (3).

2. An adjustable angular stroke actuator according to claim 1, characterized in that, The telescopic rod (4) is provided with an exhaust channel. One end of the exhaust channel is connected to the interior of the fixed cylinder (3), and the other end is connected to the external environment of the telescopic rod (4). A pressure relief unit is provided inside the connection between the exhaust channel and the external environment.

3. An adjustable angular stroke actuator according to claim 2, characterized in that, The exhaust channel includes an exhaust channel one (7) erected inside the telescopic rod (4), the bottom end of the exhaust channel one (7) being connected to the inside of the fixed cylinder (3), and an exhaust channel two (8) being opened at the top of the telescopic rod (4), the exhaust channel two (8) being connected to the top of the exhaust channel one (7).

4. An adjustable angular stroke actuator according to claim 3, characterized in that, The pressure relief unit includes a fixing ring (9) fixed inside the discharge port of the second venting channel (8), and a sealing piece (10) that abuts against one side of the fixing ring (9) is also elastically slidably provided in the inner side of the second venting channel (8).

5. An adjustable angular stroke actuator according to claim 4, characterized in that, A connecting piece (12) is also erected and fixed inside the second venting channel (8). The connecting piece (12) is located on the side of the second venting channel (8) away from the fixing ring (9). A spring telescopic rod (13) is connected between the connecting piece (12) and the sealing piece (10).

6. An adjustable angular stroke actuator according to claim 1, characterized in that, The bottom of the fixed cylinder (3) is symmetrically fixed with two slide rails (14), and a shielding plate (15) is slidably provided between the two slide rails (14). The shielding plate (15) corresponds to the air injection nozzle (6).

7. An adjustable angular stroke actuator according to claim 4, characterized in that, The inner side of the fixing ring (9) is provided with a pressing block (11) that is fixed to the sealing piece (10).

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