Valve actuator with detachable fixing frame

Abstract

The utility model relates to a valve actuator with a detachable fixing frame, which comprises a valve body, the top of the valve body is fixedly connected with a mounting seat, the top of the mounting seat is provided with an actuator body, the mounting seat is internally provided with a fixing frame assembly, the fixing frame assembly comprises a supporting disc, the supporting disc is arranged on the top of the mounting seat, and the fixing frame assembly is arranged on the supporting disc. And four connecting columns are annularly and fixedly mounted at the bottom of the supporting disc. According to the valve actuator with the detachable fixing frame, the fixing frame assembly is arranged, a supporting disc is firstly arranged above a mounting base, four connecting columns at the bottom are inserted into the mounting base, and a rotating shaft is in linkage through a bevel gear assembly, a hollow rotating rod, a disc and a movable rod; the inserting strip is pushed to be precisely inserted into the connecting column inserting groove through guiding and firmly clamped through the reset spring (the rotating shaft is disassembled and reversely rotated), the threaded hole and the threaded groove are aligned after preliminary fixation, the fastening bolt is screwed in for further reinforcement, and the arrangement is rapid in connection and higher in precision and safety.

Description

Technical Field

[0001] This utility model relates to the field of valve actuator technology, specifically a valve actuator with a detachable fixed frame. Background Technology

[0002] Actuators can be classified into three main categories according to their energy source: pneumatic, hydraulic, and electric. Pneumatic actuators use compressed air as their energy source and are characterized by simple structure, reliable and stable operation, large output thrust, convenient maintenance, fire and explosion protection, and low price. Therefore, they are widely used in chemical, papermaking, and oil refining production processes. They can be easily used with passive instruments. Valve actuators are generally installed on valves using a mounting bracket.

[0003] A search revealed, for example, a valve actuator with a detachable mounting bracket provided by Chinese Utility Model Patent Publication No. CN221780099U. This device, through the setting of a mounting bracket structure, allows for the pressing down of the second mounting plate when disassembly is required. During this process, the locking tongue moves to the bottom of the slider. After the second mounting plate is released, the mounting groove squeezes the second mounting plate to spring back, and the locking tongue drives the slider to move upward. After the slider contacts the limiting semi-circle, the locking tongue, under the action of the guide groove on the bottom surface of the slider, smoothly passes over the slider and the limiting semi-circle to complete the unlocking.

[0004] However, this device has the following drawbacks: First, the locking structure is not stable enough, relying solely on the spring force of the second spring for engagement, which can easily loosen under long-term vibration, leading to unstable connection; Second, the installation positioning accuracy is low, with the alignment of the fixed column and the second slide groove relying entirely on manual visual inspection, lacking a guide positioning structure, making it prone to misalignment during installation, resulting in the locking tongue not being able to accurately engage and limit the semi-circle. Furthermore, existing technologies often use multiple sets of bolts to fix the locking connection, which, although providing a stable connection, results in low connection efficiency due to the cumbersome guide alignment. Therefore, a valve actuator with a detachable fixed frame is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a valve actuator with a detachable fixed frame that features a spring-loaded initial positioning and provides guidance for bolted connections, followed by secondary bolt tightening to improve connection stability and prevent loosening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve actuator with a detachable fixing frame, comprising a valve body, a mounting base fixedly connected to the top of the valve body, an actuator body disposed on the top of the mounting base, and a fixing frame assembly disposed inside the mounting base;

[0007] The mounting bracket assembly includes a support plate disposed on the top of the mounting base. Four connecting columns are fixedly mounted in a ring at the bottom of the support plate. A rotating shaft is movably mounted on the inner wall of the mounting base. A driving bevel gear is fixedly mounted at the end of the rotating shaft. A driven bevel gear meshes with the top of the driving bevel gear. A hollow rotating rod is fixedly mounted in the middle of the driven bevel gear. A disc is fixedly mounted on the surface of the hollow rotating rod. Four connecting blocks are fixedly mounted in a ring on the outer wall of the disc. Movable rods are rotatably mounted on the surfaces of the four connecting blocks. Inserts are rotatably mounted on the side of each of the four movable rods away from the connecting blocks. A vertical plate is fixedly mounted on the bottom wall of the mounting base. A return spring is fixedly mounted on the surface of the vertical plate. A connecting rod is fixedly mounted on the side of the return spring away from the vertical plate.

[0008] Furthermore, a number of support columns are fixedly installed at the bottom of the actuator body, and a transmission rod is fixedly installed at the center of the bottom of the actuator body.

[0009] Furthermore, a support plate is fixedly connected to the bottom of several of the support columns, and the hollow rotating rod is rotatably mounted on the bottom wall of the mounting base via a bearing.

[0010] Furthermore, the connecting post has a slot inside, and the insert is adapted to the slot.

[0011] Furthermore, the bottom wall of the mounting base is provided with a slide rail, and the connecting rod is slidably installed with the bottom wall of the mounting base through the slide rail, and an insert is fixedly installed on the top of the connecting rod.

[0012] Furthermore, fastening plates are fixedly installed on both the left and right sides of the support plate, and fastening bolts are threadedly connected inside the two fastening plates. The top wall of the mounting base is provided with a threaded groove, and the fastening bolts are adapted to the threaded groove. The transmission rod extends through the hollow rotating rod inside the support plate and the mounting base to the interior of the valve body.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This valve actuator with a detachable mounting bracket, through the mounting bracket assembly, allows for easy operation. First, the support plate is placed above the mounting base, allowing the four connecting posts at the bottom to be inserted into the mounting base. Rotating the rotating shaft, through the linkage of the bevel gear assembly, hollow rotating rod, disc, and movable rod, pushes the insert bar through the guide to precisely insert into the connecting post slot and securely engage with the return spring (disassembly and reversal of the rotating shaft can be achieved). After initial fixation, the threaded hole aligns with the threaded groove, and the fastening bolt is screwed in for further reinforcement. This setup offers quick connection, higher accuracy and safety, and strong practicality. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a front view of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the mounting base of this utility model;

[0018] Figure 4 This is a top view of the disk and its connecting structure of the present invention;

[0019] Figure 5 This is a perspective view of the connection between the disc and the support column of this utility model.

[0020] In the diagram: 1. Valve body; 2. Mounting base; 3. Actuator body; 4. Support column; 5. Transmission rod; 6. Fixing frame assembly; 601. Support plate; 602. Connecting column; 603. Rotating shaft; 604. Driving bevel gear; 605. Driven bevel gear; 606. Hollow rotating rod; 607. Disc; 608. Connecting block; 609. Movable rod; 610. Insert bar; 611. Vertical plate; 612. Return spring; 613. Connecting rod; 614. Fastening plate; 615. Fastening bolt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 In this embodiment, a valve actuator with a detachable fixing frame includes a valve body 1, a mounting base 2 is fixedly connected to the top of the valve body 1, an actuator body 3 is provided on the top of the mounting base 2, and a fixing frame assembly 6 is provided inside the mounting base 2.

[0023] The mounting bracket assembly 6 includes a support plate 601, which is located on the top of the mounting base 2. Four connecting columns 602 are fixedly installed in a ring at the bottom of the support plate 601. A rotating shaft 603 is movably installed on the inner wall of the mounting base 2. A driving bevel gear 604 is fixedly installed at the end of the rotating shaft 603. A driven bevel gear 605 meshes with the top of the driving bevel gear 604. A hollow rotating rod 606 is fixedly installed in the middle of the driven bevel gear 605. A disc 607 is fixedly installed on the surface of the hollow rotating rod 606. Four connecting blocks 608 are fixedly installed in a ring on the outer wall of the disc 607. Movable rods 609 are rotatably installed on the surface of each of the four connecting blocks 608. Inserts 610 are rotatably installed on the side of each of the four movable rods 609 away from the connecting blocks 608. A vertical plate 611 is fixedly installed on the bottom wall of the mounting base 2. A return spring 612 is fixedly installed on the surface of the vertical plate 611. A connecting rod 613 is fixedly installed on the side of the return spring 612 away from the vertical plate 611.

[0024] like Figure 1 and Figure 2 As shown, by setting the support column 4, the actuator body 3 can be supported above the valve body 1. By setting the transmission rod 5, and by setting the top and bottom walls of the support plate 601 and the hollow rotating rod 606, mounting holes are provided for the transmission rod 5 to pass through. The transmission rod 5 passes through the support plate 601 and the hollow rotating rod 606, extends into the interior of the valve body 1, and connects with the valve core inside the valve body 1. Its setting and function are the same as "transmission rod 5" in the comparative document, and will not be described in detail here.

[0025] like Figure 3 As shown, by opening a slide rail on the bottom wall of the mounting base 2, not only can the connecting rod 613 be moved stably, but the insert 610 fixed to the connecting rod 613 can also be precisely inserted into the slot inside the connecting post 602, preventing connection failure due to misalignment.

[0026] It should be noted that components such as the heat dissipation holes and control box on the actuator body 3 have already been disclosed in the prior art and are therefore considered prior art, so they will not be described again.

[0027] When implementing this procedure, please follow these steps:

[0028] 1) First, place the support plate 601 connected to the support column 4 on top of the mounting base 2, and at the same time insert the four connecting columns 602 at the bottom of the support plate 601 into the mounting base 2 to complete the initial alignment and placement;

[0029] 2) Then rotate the rotating shaft 603, which in turn drives the driving bevel gear 604 and the driven bevel gear 605 to rotate in sequence. The driven bevel gear 605 drives the hollow rotating rod 606 and the disc 607 to rotate synchronously. The disc 607 drives the four movable rods 609 to rotate outward, pushing the four inserts 610 to be guided by the slide rail and the connecting rod 613 to be accurately inserted into the slots inside the connecting post 602. The elastic force of the return spring 612 ensures that the inserts 610 are firmly connected to the slots.

[0030] 3) After the support plate 601 and the mounting base 2 are initially fixed, the threaded hole on the fastening plate 614 connected to the support plate 601 is automatically aligned with the threaded groove inside the mounting base 2, reducing the time for manual alignment of the threaded hole, thereby screwing the fastening bolt 615 into the threaded hole and the threaded groove, realizing further fastening and alignment of the support plate 601 and the mounting base 2, and improving the connection stability.

[0031] 4) Finally, if disassembly is required, rotate the shaft 603 in the opposite direction. Through the linkage of the bevel gear, hollow rotating rod 606, disc 607 and movable rod 609, the insert 610 will be disengaged from the slot of the connecting post 602, and the support plate 601 can be removed to complete the disassembly.

[0032] In summary, this valve actuator with a detachable mounting bracket, through the mounting bracket assembly 6, allows for quick and precise operation. First, the support plate 601 is placed above the mounting base 2, allowing the four connecting posts 602 at the bottom to be inserted into the mounting base 2. Rotating the rotating shaft 603, through the bevel gear assembly, hollow rotating rod 606, disc 607, and movable rod 609, pushes the insert 610 through a guide to precisely insert into the slot of the connecting post 602, where it is securely engaged by the return spring 612 (this can be achieved by disassembling and rotating the rotating shaft 603 in the opposite direction). After initial fixation, the threaded hole aligns with the threaded groove, and the fastening bolt 615 is screwed in for further reinforcement. This setup offers quick connection, higher precision and safety, and strong practicality.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 valve actuator with a detachable mounting bracket, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected to a mounting base (2), the top of the mounting base (2) is provided with an actuator body (3), and the inside of the mounting base (2) is provided with a fixing frame assembly (6). The fixing frame assembly (6) includes a support plate (601), which is disposed on the top of the mounting base (2). Four connecting columns (602) are fixedly installed in a ring at the bottom of the support plate (601). A rotating shaft (603) is movably installed on the inner wall of the mounting base (2). A driving bevel gear (604) is fixedly installed at the end of the rotating shaft (603). A driven bevel gear (605) meshes with the top of the driving bevel gear (604). A hollow rotating rod (606) is fixedly installed in the middle of the driven bevel gear (605). The surface of the hollow rotating rod (606) A disc (607) is fixedly installed. Four connecting blocks (608) are fixedly installed in a ring on the outer wall of the disc (607). Movable rods (609) are rotatably installed on the surface of each of the four connecting blocks (608). Inserts (610) are rotatably installed on the side of each of the four movable rods (609) away from the connecting blocks (608). A vertical plate (611) is fixedly installed on the bottom wall of the mounting base (2). A return spring (612) is fixedly installed on the surface of the vertical plate (611). A connecting rod (613) is fixedly installed on the side of the return spring (612) away from the vertical plate (611).

2. A valve actuator of the removable mounting type according to claim 1, characterized in that: The actuator body (3) has several support columns (4) fixedly installed at its bottom, and a transmission rod (5) is fixedly installed at the center of the bottom of the actuator body (3).

3. A valve actuator of the removable mounting type according to claim 2, characterized in that: A support plate (601) is fixedly connected to the bottom of several of the support columns (4), and the hollow rotating rod (606) is rotatably mounted on the bottom wall of the mounting base (2) through a bearing.

4. A valve actuator with a detachable fixed frame according to claim 1, characterized in that: The connecting post (602) has a slot inside, and the insert (610) is adapted to the slot.

5. The valve actuator of claim 1, wherein: The bottom wall of the mounting base (2) is provided with a slide rail, and the connecting rod (613) is slidably installed on the bottom wall of the mounting base (2) through the slide rail. The top of the connecting rod (613) is fixedly installed with an insert (610).

6. The valve actuator of claim 1, wherein: Fastening plates (614) are fixedly installed on both the left and right sides of the support plate (601). Fastening bolts (615) are threadedly connected inside the two fastening plates (614). The top wall of the mounting base (2) is provided with a threaded groove. The fastening bolts (615) are adapted to the threaded groove. The transmission rod (5) extends through the hollow rotating rod (606) inside the support plate (601) and the mounting base (2) to the inside of the valve body (1).

Images