Explosion-proof electric actuator

Abstract

The utility model discloses an explosion -proof electric actuator relates to electric actuator technical field, including electric actuator main part, install the casing of electric actuator main part outside and assemble the mounting bolt on the casing still include: set up on the bearing positioning unit and detection alarm unit of casing, bearing positioning unit includes the carrier plate, horizontal slide bar, cross slide, strip frame board, support block and positioning screw, and the carrier plate installs in the casing one side surface, detection alarm unit includes the stopper, support spring, abutting plate, support column, adjusting screw, press switch and buzzer, and the stopper fixed setting is in strip frame board bottom, and support spring fixed setting is in the top surface of stopper and extends to strip frame board outside, in the utility model, after positioning screw rotation enters the positioning hole of carrier plate side, and strip frame board and detection alarm unit follow whole fixed, and the equipment is convenient to operate mounting bolt to adjust the positioning of detection alarm unit.

Description

Technical Field

[0001] This utility model relates to the field of electric actuator technology, and in particular to an explosion-proof electric actuator. Background Technology

[0002] An electric actuator is a drive device that provides linear or rotary motion. It utilizes a driving energy source and operates under the influence of a control signal. The actuator uses liquid, gas, electricity, or other energy sources and converts them into driving force through a motor, cylinder, or other device. Electric actuators contain position sensors, torque sensors, electrode protection devices, logic control devices, digital communication modules, and PID control modules, all enclosed in a compact housing. Because the electrically powered devices or modules inside the housing generate heat during operation, and non-electrical devices or modules also generate heat during transmission, and the transmission process also causes vibration, the actuator requires a high-quality housing. Since existing actuators lack detection and protection components for bolt movement in explosion-proof applications, and bolts are critical components for maintaining the integrity of the actuator, there is room for improvement.

[0003] Publication number CN222479601U discloses an explosion-proof electric actuator, aiming to address the problem that some actuators lack detection and protection components for bolt movement during explosion-proof processes, while bolts are crucial components for maintaining the integrity of the actuator, leaving room for improvement. The key technical points are: an explosion-proof electric actuator includes a mechanism body and a protective device mounted on the mechanism body. The protective device contains a detection component, which houses the bolt assembling the mechanism body and the protective device. The detection component includes a fixed rod and a sliding rod slidably connected to the fixed rod, with the end of the sliding rod away from the fixed rod abutting against the outer wall of the bolt. This explosion-proof electric actuator can provide early warning of bolts within the mechanism body, quickly triggering an alarm and notifying personnel if a bolt is found to be loose or moving. This allows personnel to promptly address the issue and prevent damage to the mechanism body.

[0004] While the above-mentioned solution can trigger an explosion-proof alarm by moving the bolt, the bolt movement detection component's excessive contact with the bolt can hinder the disassembly and assembly of the housing. Furthermore, the fixed alarm distance of the detection component's movement is limited by the applicable electric actuator and the size of the housing. Therefore, we propose an explosion-proof electric actuator. Utility Model Content

[0005] The main purpose of this utility model is to provide an explosion-proof electric actuator. By setting up a bearing positioning unit and a detection alarm unit, it solves the problems that the bolt movement detection component is too tight in contact with the bolt, which will hinder the disassembly and assembly of the housing, and that the fixed alarm distance of the detection component is applicable to electric actuators and housing size limitations.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: an explosion-proof electric actuator, including an electric actuator body, a housing installed outside the electric actuator body and mounting bolts assembled on the housing, and further including: a bearing positioning unit and a detection alarm unit disposed on the housing;

[0007] The bearing positioning unit includes a carrier plate, a transverse slide bar, a transverse slider, a strip frame plate, a support block, and a positioning screw. The carrier plate is installed on one side surface of the housing. Two strip grooves are symmetrically opened on the side of the carrier plate. The transverse slide bar is fixedly installed in the strip groove. The transverse slider is movably sleeved on the outer circumferential surface of the transverse slide bar. The strip frame plate is fixedly installed on the end face of the transverse slider. A positioning hole is opened on the side of the carrier plate. The support block is fixedly installed on the middle side wall of the carrier plate. The positioning screw is threadedly connected to the support block and extends movably into the positioning hole.

[0008] The detection alarm unit includes a stop block, a support spring, a contact plate, a support column, an adjusting screw, a push-button switch, and a buzzer. The stop block is fixedly installed at the bottom end of the strip frame plate. The support spring is fixedly installed on the top surface of the stop block and extends to the outside of the strip frame plate. The contact plate is fixedly installed at the top of the support spring and located below the mounting bolt. The support column is fixedly installed on the bottom surface of the contact plate and located inside the support spring. The adjusting screw is threadedly connected to the bottom surface of the stop block and extends to the inside of the support spring. The push-button switch is installed at the top of the adjusting screw and located below the support column. The buzzer is installed at the corner of the bottom surface of the stop block.

[0009] Preferably, the transverse slide bar and the transverse slider are arranged in a one-to-one correspondence with the strip groove.

[0010] Preferably, the positioning screw and the transverse slide are arranged perpendicular to each other.

[0011] Preferably, the adjusting screw and the support column are located on the same vertical central axis.

[0012] Preferably, the adjusting screw and the positioning screw are arranged perpendicular to each other.

[0013] Preferably, the support column and the transverse slide bar are arranged perpendicular to each other.

[0014] Compared with the prior art, the explosion-proof electric actuator of this utility model has the following advantages:

[0015] 1. In this utility model, by setting a bearing positioning unit, after the carrier plate is installed on the housing, the detection alarm unit on the strip frame plate will move to the bottom of the mounting bolt. When the bolt is operated to disassemble and install the housing, the horizontal slider can slide and move on the horizontal slide rod in the strip groove to help the strip frame plate and the detection alarm unit move as a whole to avoid the mounting bolt. When the strip frame plate moves to the center of the side of the carrier plate, the positioning screw is rotated on the support block on the middle side wall of the carrier plate. After the positioning screw rotates into the positioning hole on the side of the carrier plate, the strip frame plate and the detection alarm unit are fixed as a whole. The equipment can flexibly and conveniently adjust the positioning of the detection alarm unit and operate the mounting bolt.

[0016] 2. In this utility model, by setting up a detection alarm unit, a support spring fixedly installed on the top surface of the stop block and extending to the outside of the strip frame plate can help the abutment plate to fit tightly against the mounting bolts. An adjusting screw threadedly connected to the bottom surface of the stop block and extending to the inside of the support spring is held and rotated. A push switch installed at the top of the adjusting screw adjusts the distance between itself and the support column. When the mounting bolts fall off and move, causing the abutment plate to move down, the support column fixedly installed on the bottom surface of the abutment plate and located inside the support spring can press down the push switch to activate the buzzer alarm. Rotating the adjusting screw can help the push switch move up and down to match the support columns of different heights. The equipment's detection alarm unit has flexible movement and alarm distance adjustment and a wide range of applications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof electric actuator according to the present invention;

[0019] Figure 2 This is a front view structural diagram of an explosion-proof electric actuator according to the present invention;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0022] Figure 5 This is a side view of the structure of an explosion-proof electric actuator according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Main body of the electric actuator;

[0025] 2. Shell;

[0026] 3. Install bolts;

[0027] 4. Bearing and positioning unit; 401. Carrier plate; 402. Transverse slide bar; 403. Transverse slider; 404. Strip frame plate; 405. Support block; 406. Positioning screw;

[0028] 5. Detection and alarm unit; 501. Stop block; 502. Support spring; 503. Abutment plate; 504. Support column; 505. Adjusting screw; 506. Press switch; 507. Buzzer. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0032] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, an explosion-proof electric actuator includes an electric actuator body 1, a housing 2 installed outside the electric actuator body 1, and mounting bolts 3 assembled on the housing 2. It also includes a load-bearing positioning unit 4 and a detection alarm unit 5 disposed on the housing 2.

[0033] The bearing positioning unit 4 includes a carrier plate 401, a transverse slide bar 402, a transverse slider 403, a strip frame plate 404, a support block 405, and a positioning screw 406. The carrier plate 401 is installed on one side surface of the housing 2. Two strip grooves are symmetrically opened on the side of the carrier plate 401. The transverse slide bar 402 is fixedly installed in the strip groove. The transverse slider 403 is movably sleeved on the outer circumferential surface of the transverse slide bar 402. The strip frame plate 404 is fixedly installed on the end face of the transverse slider 403. A positioning hole is opened on the side of the carrier plate 401. The support block 405 is fixedly installed on the middle side wall of the carrier plate 401. The positioning screw 406 is threadedly connected to the support block 405 and extends movably into the positioning hole.

[0034] The detection alarm unit 5 includes a stop block 501, a support spring 502, an abutment plate 503, a support column 504, an adjusting screw 505, a push switch 506, and a buzzer 507. The stop block 501 is fixedly installed at the bottom of the strip frame plate 404. The support spring 502 is fixedly installed on the top surface of the stop block 501 and extends to the outside of the strip frame plate 404. The abutment plate 503 is fixedly installed on the top of the support spring 502 and located below the mounting bolt 3. The support column 504 is fixedly installed on the bottom surface of the abutment plate 503 and located inside the support spring 502. The adjusting screw 505 is threadedly connected to the bottom surface of the stop block 501 and extends to the inside of the support spring 502. The push switch 506 is installed on the top of the adjusting screw 505 and located below the support column 504. The buzzer 507 is installed at the corner of the bottom surface of the stop block 501.

[0035] Furthermore, the transverse slide bar 402 and the transverse slider 403 are arranged in a one-to-one correspondence with the strip groove.

[0036] Furthermore, the positioning screw 406 and the transverse slide bar 402 are arranged perpendicularly to each other.

[0037] Furthermore, the adjusting screw 505 and the support column 504 are located on the same vertical central axis.

[0038] The positioning unit 4 enables the device to flexibly and conveniently adjust the positioning of the detection and alarm unit 5, and to install the bolts 3. Example

[0039] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, an explosion-proof electric actuator includes an electric actuator body 1, a housing 2 installed outside the electric actuator body 1, and mounting bolts 3 assembled on the housing 2. It also includes a load-bearing positioning unit 4 and a detection alarm unit 5 disposed on the housing 2.

[0040] The bearing positioning unit 4 includes a carrier plate 401, a transverse slide bar 402, a transverse slider 403, a strip frame plate 404, a support block 405, and a positioning screw 406. The carrier plate 401 is installed on one side surface of the housing 2. Two strip grooves are symmetrically opened on the side of the carrier plate 401. The transverse slide bar 402 is fixedly installed in the strip groove. The transverse slider 403 is movably sleeved on the outer circumferential surface of the transverse slide bar 402. The strip frame plate 404 is fixedly installed on the end face of the transverse slider 403. A positioning hole is opened on the side of the carrier plate 401. The support block 405 is fixedly installed on the middle side wall of the carrier plate 401. The positioning screw 406 is threadedly connected to the support block 405 and extends movably into the positioning hole.

[0041] The detection alarm unit 5 includes a stop block 501, a support spring 502, an abutment plate 503, a support column 504, an adjusting screw 505, a push switch 506, and a buzzer 507. The stop block 501 is fixedly installed at the bottom of the strip frame plate 404. The support spring 502 is fixedly installed on the top surface of the stop block 501 and extends to the outside of the strip frame plate 404. The abutment plate 503 is fixedly installed on the top of the support spring 502 and located below the mounting bolt 3. The support column 504 is fixedly installed on the bottom surface of the abutment plate 503 and located inside the support spring 502. The adjusting screw 505 is threadedly connected to the bottom surface of the stop block 501 and extends to the inside of the support spring 502. The push switch 506 is installed on the top of the adjusting screw 505 and located below the support column 504. The buzzer 507 is installed at the corner of the bottom surface of the stop block 501.

[0042] Furthermore, the adjusting screw 505 and the support column 504 are located on the same vertical central axis.

[0043] Furthermore, the adjusting screw 505 and the positioning screw 406 are set perpendicular to each other.

[0044] Furthermore, the support column 504 and the transverse slide bar 402 are arranged perpendicular to each other.

[0045] The detection alarm unit 5 allows for flexible adjustment of the alarm distance and wide applicability.

[0046] The working principle of this utility model is as follows:

[0047] After the carrier plate 401 is installed onto the housing 2, the detection alarm unit 5 on the strip frame plate 404 moves to below the mounting bolt 3. When the housing 2 is disassembled by operating the bolt, the transverse slider 403 slides and moves along the transverse slide rod 402 in the strip groove to help the strip frame plate 404 and the detection alarm unit 5 move together to avoid the mounting bolt 3. When the strip frame plate 404 moves to the center of the side of the carrier plate 401, the positioning screw 406 is rotated and installed on the support block 405 on the middle side wall of the carrier plate 401. After the positioning screw 406 rotates into the positioning hole on the side of the carrier plate 401, the strip frame plate 404 and the detection alarm unit 5 are fixed together and fixedly installed on the top surface of the stop block 501 and extending... The support spring 502 extending to the outside of the strip frame plate 404 helps the abutment plate 503 to fit tightly against the mounting bolt 3. It holds and rotates the adjusting screw 505, which is threadedly connected to the bottom surface of the stop block 501 and extends to the inside of the support spring 502. The push switch 506 installed at the top of the adjusting screw 505 adjusts the distance between itself and the support column 504 accordingly. When the mounting bolt 3 falls off and moves, causing the abutment plate 503 to move down, the support column 504, which is fixed on the bottom surface of the abutment plate 503 and located inside the support spring 502, presses down the push switch 506 to work with the buzzer 507 to sound an alarm. Rotating the adjusting screw 505 can help the push switch 506 to rise and fall to match the support column 504 at different heights.

[0048] 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof electric actuator, comprising an electric actuator body (1), a housing (2) mounted outside the electric actuator body (1), and mounting bolts (3) assembled on the housing (2), characterized in that, Also includes: The bearing positioning unit (4) and the detection alarm unit (5) are installed on the housing (2); The bearing positioning unit (4) includes a carrier plate (401), a transverse slide bar (402), a transverse slider (403), a strip frame plate (404), a support block (405), and a positioning screw (406). The carrier plate (401) is installed on one side surface of the housing (2). Two strip grooves are symmetrically opened on the side of the carrier plate (401). The transverse slide bar (402) is fixedly installed in the strip groove. The transverse slider (403) is movably sleeved on the outer circumferential surface of the transverse slide bar (402). The strip frame plate (404) is fixedly installed on the end face of the transverse slider (403). A positioning hole is opened on the side of the carrier plate (401). The support block (405) is fixedly installed on the middle side wall of the carrier plate (401). The positioning screw (406) is threadedly connected to the support block (405) and extends movably into the positioning hole. The detection alarm unit (5) includes a stop block (501), a support spring (502), a stop plate (503), a support column (504), an adjusting screw (505), a push switch (506), and a buzzer (507). The stop block (501) is fixedly installed at the bottom of the strip frame plate (404). The support spring (502) is fixedly installed on the top surface of the stop block (501) and extends to the outside of the strip frame plate (404). The stop plate (503) is fixedly installed on the support spring. (502) The top of the support column (504) is located below the mounting bolt (3). The support column (504) is fixedly installed on the bottom surface of the abutment plate (503) and located inside the support spring (502). The adjusting screw (505) is threadedly connected to the bottom surface of the stop block (501) and extends to the inside of the support spring (502). The push switch (506) is installed at the top of the adjusting screw (505) and located below the support column (504). The buzzer (507) is installed at the corner of the bottom surface of the stop block (501).

2. The explosion-proof electric actuator according to claim 1, characterized in that: The transverse slide bar (402) and the transverse slider (403) are arranged in a one-to-one correspondence with the strip groove.

3. The explosion-proof electric actuator according to claim 1, characterized in that: The positioning screw (406) and the transverse slide bar (402) are arranged perpendicular to each other.

4. The explosion-proof electric actuator according to claim 1, characterized in that: The adjusting screw (505) and the support column (504) are located on the same vertical central axis.

5. The explosion-proof electric actuator according to claim 1, characterized in that: The adjusting screw (505) and the positioning screw (406) are set perpendicular to each other.

6. The explosion-proof electric actuator according to claim 1, characterized in that: The support column (504) and the transverse slide bar (402) are arranged perpendicular to each other.

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