Auxiliary device for maintaining PLC (Programmable Logic Controller)

Abstract

The utility model relates to the technical field of PLC controllers, in particular to an auxiliary device for maintenance of a PLC controller, which comprises a device body, a stable mounting mechanism is arranged on the surface of each fixing block, a clamping anti-loosening mechanism is arranged on the inner wall of each U-shaped frame, and a high-applicability mechanism is arranged on the surface of each fixing groove and the surface of each sliding block. According to the auxiliary device, when the auxiliary device is used, the device body can be stably installed at a designated position, the phenomenon that the maintenance effect of the PLC is affected due to displacement of the auxiliary device in the using process is avoided, the applicability of the auxiliary device in the using process is greatly improved, and the practicability of the auxiliary device in the using process is further improved; and when the auxiliary device is used, the PLC can be stably clamped in the U-shaped frame, so that the auxiliary device is more convenient and smoother during maintenance of the PLC.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC controllers, in particular to an auxiliary device for repairing PLC controllers. Background Art

[0002] A programmable logic controller is a digital electronic device with a microprocessor. It is a digital logic controller used for automated control. It can load control instructions into the memory for storage and execution at any time. The programmable controller is composed of an internal CPU, instruction and data memory, input and output units, power supply modules, etc. When repairing a PLC controller, an auxiliary device for repairing the PLC controller is required.

[0003] First, the auxiliary device needs to be installed on the device body when in use, and the existing auxiliary device is not stable enough during installation, which makes it impossible to stably install the device body in the specified position when the auxiliary device is in use, which easily causes the auxiliary device to be displaced during use and affects the maintenance effect of the PLC controller; secondly, since the sizes of PLC controllers are different, the existing auxiliary devices are usually unable to repair PLC controllers of different sizes when in use, which greatly reduces the applicability of the auxiliary device when in use, and further reduces the practicality of the auxiliary device when in use; thirdly, the auxiliary device needs to clamp the PLC controller to prevent it from loosening when in use, and the existing auxiliary device needs to be further improved in its anti-loosening performance for clamping the PLC controller, which makes it inconvenient and not smooth for the auxiliary device to repair the PLC controller. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary device for repairing a PLC controller, so as to solve the problems proposed in the above background technology that the auxiliary device is not stable enough during installation, cannot repair PLC controllers of different sizes, and the anti-loosening performance of clamping the PLC controller needs to be further improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for PLC controller maintenance, comprising a device body, a control button is installed on the surface of the device body, a mobile frame is arranged on the surface at the top position of the device body, the mobile frame and the surface of the device body are slidably matched with each other, a U-shaped frame is arranged on the surface of the mobile frame, a fixed groove is opened inside the device body, the bottom of the mobile frame extends to the inside of the fixed groove and is installed with a sliding block, the sliding block and the inner wall of the fixed groove are slidably matched with each other, the surfaces on both sides of the device body are installed with fixed blocks, the surface of the device body is provided with a handle body, the surface of the fixed block is provided with a stable installation mechanism, the interior of the stable installation mechanism includes a push-pull rod, a stable suction cup and a stable installation part, the inner wall of the U-shaped frame is provided with a clamping and anti-loosening mechanism, the interior of the clamping and anti-loosening mechanism includes a clamping plate, an anti-slide plate and a clamping and anti-loosening part, the surface of the fixed groove and the sliding block are provided with a high-applicability mechanism, and the interior of the high-applicability mechanism includes a mounting stud, a connecting frame, a rotating ball and a connecting plate.

[0006] Preferably, the U-shaped frame and the surface of the movable frame plate are rotatably matched with each other, and a connecting rod is installed on the surface at the center position of the U-shaped frame, one end of the connecting rod passes through the movable frame plate and extends to the outside of the movable frame plate, the connecting rod and the inner wall of the movable frame plate are rotatably matched with each other, and the surface of the connecting rod is threadedly connected with a fastening bolt, one end of the fastening bolt passes through the connecting rod and is threadedly fastened to the surface of the movable frame plate.

[0007] Preferably, the clamping and anti-loosening portion is arranged on the inner wall of the U-shaped frame, and the clamping and anti-loosening portion is composed of a fixed cylinder, a guide groove, an electric push rod and a movable column. The inner wall of the U-shaped frame is installed with a fixed cylinder, one end of the fixed cylinder extends to the outside of the U-shaped frame, and a movable column is arranged inside the fixed cylinder. The inner wall of the fixed cylinder is provided with a guide groove, and the guide groove and the surface of the movable column are slidably matched with each other.

[0008] Preferably, an electric push rod is installed inside the fixed cylinder, the input end of the electric push rod is electrically connected to the output end of the control button, the output end of the electric push rod is fixed to the surface of the moving column, one end of the moving column extends to the bottom of the fixed cylinder, a clamping plate is installed on the surface of the moving column, and an anti-skid plate is installed on the surface at the bottom of the clamping plate for preventing the PLC controller from slipping.

[0009] Preferably, a connecting plate is installed on the surface at the bottom of the sliding block, and the surface of the connecting plate is provided with rotating balls at equal intervals. The rotating balls and the surface of the connecting plate rotate with each other, and the rotating balls contact the inner wall of the fixed groove.

[0010] Preferably, a connecting frame is installed on the surface of the sliding block, one end of the connecting frame is fixed to the surface of the handle body, the surface of the handle body is threadedly connected with a mounting stud for fixing the handle body to the surface of the device body, one end of the mounting stud passes through the handle body and is threadedly fastened to the surface of the device body.

[0011] Preferably, the stable mounting portion is arranged on the surface of the fixed block, and the stable mounting portion is composed of a groove body, an arc-shaped groove, an arc-shaped clamp and a stretch spring. A push-pull rod is arranged on the surface of the fixed block, and a groove body is opened inside the fixed block. A stable suction cup is arranged inside the groove body, and one end of the push-pull rod extends to the interior of the groove body and is fixed to the surface of the stable suction cup, and the push-pull rod and the inner wall of the fixed block slide together.

[0012] Preferably, the surface of the push-pull rod is provided with a groove, and an arc-shaped clip is arranged inside the groove, the arc-shaped clip and the inner wall of the groove are slidably matched with each other, the inner wall of the fixed block is provided with an arc-shaped groove, the arc-shaped groove and the surface of the arc-shaped clip are clipped and matched with each other, the surface of the arc-shaped clip is installed with an extension spring, and one end of the extension spring is fixed to the inner wall of the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the auxiliary device for repairing the PLC controller not only enables the device body to be stably installed at a designated position when the auxiliary device is used, avoiding the phenomenon that the auxiliary device is displaced during use and affects the repair effect of the PLC controller, so that the applicability of the auxiliary device when used is greatly improved, and the practicality of the auxiliary device when used is further improved, but also enables the auxiliary device to stably clamp the PLC controller inside the U-shaped frame when used, so that the auxiliary device is more convenient and smooth when repairing the PLC controller;

[0014] 1. By providing a stable installation mechanism, the user pushes the push-pull rod downward, so that the push-pull rod slides on the inner wall of the fixed block, so that the push-pull rod drives the stable suction cup to slide inside the groove body. At this time, the arc-shaped clamp is driven to move under the elastic force of the extension spring inside the groove, so that the arc-shaped clamp is clamped to the inside of the corresponding arc-shaped clamping groove. Under the clamping action of the arc-shaped clamp and the arc-shaped clamping groove, the stable suction cup is fixed inside the groove body, so that the stable suction cup moves to fit with the surface of the placement surface. Under the action of the stable suction cup, the stability of the device body during installation is improved, and the function of the auxiliary device to stably install the device body is realized, so that the device body can be stably installed in the specified position when the auxiliary device is used, avoiding the phenomenon that the auxiliary device is displaced during use and affects the maintenance effect of the PLC controller;

[0015] 2. By providing a high-applicability mechanism, the user adjusts the distance between the U-shaped frames according to the size of the PLC controller to be repaired. At this time, the user loosens the mounting studs on the surface of the handle body, and then pulls the handle body, so that the handle body drives the connecting frame to slide inside the fixed groove. At this time, the connecting frame drives the sliding block to slide inside the fixed groove, and the sliding block drives the connecting plate to slide inside the fixed groove. At this time, the rotating ball rotates on the surface of the connecting plate, and under the action of the rotating ball, the connecting plate moves more labor-saving and quickly inside the fixed groove. When the sliding block moves, the sliding block drives the moving frame plate to slide on the surface of the device body, and drives the U-shaped frame to move under the action of the moving frame plate, so as to adjust the distance between the U-shaped frames. After the adjustment is completed, the user tightens the mounting studs on the surface of the handle body to fix the moving frame plate and the U-shaped frame on the surface of the device body, thereby realizing the function of the auxiliary device to repair PLC controllers of different sizes, thereby greatly improving the applicability of the auxiliary device when used, and further improving the practicality of the auxiliary device when used;

[0016] 3. A clamping and anti-loosening mechanism is provided to control the operation of the electric push rod inside the fixed cylinder, and the moving column is driven to move inside the fixed cylinder under the action of the electric push rod. At this time, the moving column slides inside the guide groove. When the moving column moves, the moving column drives the clamping plate and the anti-slide plate to move downward until they are in contact with the surface of the PLC controller. Under the joint action of the clamping plate and the anti-slide plate, the PLC controller is clamped inside the U-shaped frame to avoid displacement of the PLC controller, thereby realizing the function of the auxiliary device to clamp and prevent the PLC controller from loosening, so that the auxiliary device can stably clamp the PLC controller inside the U-shaped frame when in use, making it more convenient and smoother to use the auxiliary device to repair the PLC controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 An enlarged structural diagram of the stable mounting mechanism;

[0020] Figure 4 For the utility model Figure 2 An enlarged structural diagram of the middle clamping anti-loosening mechanism;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the high-applicability mechanism of the utility model.

[0022] In the figure: 1. Device body; 101. Control button; 102. Moving frame; 103. U-shaped frame; 104. Fixed groove; 105. Connecting rod; 106. Fastening bolt; 107. Handle body; 108. Fixed block; 109. Sliding block; 2. Clamping and anti-loosening mechanism; 201. Clamping plate; 202. Anti-slide plate; 203. Clamping and anti-loosening part; 2031. Fixed cylinder; 2032. Guide groove; 2033. Electric push rod; 2034. Moving column; 3. High applicability mechanism; 301. Mounting stud; 302. Connecting frame; 303. Rotating ball; 304. Connecting plate; 4. Stable installation mechanism; 401. Push-pull rod; 402. Stable suction cup; 403. Stable installation part; 4031. Slot body; 4032. Arc-shaped slot; 4033. Arc-shaped clamp; 4034. Extension spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] The utility model provides a structure of an auxiliary device for PLC controller maintenance. Figure 1 and Figure 2 As shown, it includes a device body 1, a control button 101 is installed on the surface of the device body 1, and the model of the control button 101 can be selected from the LA series. A movable frame 102 is arranged on the surface at the top position of the device body 1, and the movable frame 102 and the surface of the device body 1 are slidably matched with each other. A U-shaped frame 103 is arranged on the surface of the movable frame 102, and the U-shaped frame 103 and the surface of the movable frame 102 are rotatably matched with each other. A connecting rod 105 is installed on the surface at the center position of the U-shaped frame 103, and one end of the connecting rod 105 passes through the movable frame 102 and extends to the outside of the movable frame 102 The connecting rod 105 and the inner wall of the movable frame 102 are rotatably matched with each other, and the surface of the connecting rod 105 is threadedly connected with a fastening bolt 106, one end of the fastening bolt 106 passes through the connecting rod 105 and is threadedly fastened with the surface of the movable frame 102, and a fixing groove 104 is opened inside the device body 1. The bottom of the movable frame 102 extends to the inside of the fixing groove 104 and is installed with a sliding block 109. The sliding block 109 and the inner wall of the fixing groove 104 are slidably matched with each other, and the surfaces of both sides of the device body 1 are installed with fixing blocks 108, and the surface of the device body 1 is provided with a handle body 107.

[0025] Furthermore, if Figure 2 and Figure 3As shown, the surface of the fixed block 108 is provided with a stable installation mechanism 4, and the interior of the stable installation mechanism 4 includes a push-pull rod 401, a stable suction cup 402 and a stable installation portion 403, and the stable installation portion 403 is arranged on the surface of the fixed block 108. The stable installation portion 403 is composed of a groove body 4031, an arc-shaped groove 4032, an arc-shaped clamp 4033 and a stretch spring 4034. The surface of the fixed block 108 is provided with a push-pull rod 401, and the interior of the fixed block 108 is provided with a groove body 4031, and the interior of the groove body 4031 is provided with a stable suction cup 402. One end of the push-pull rod 401 extends to The interior of the groove body 4031 is fixed to the surface of the stabilizing suction cup 402, the push-pull rod 401 and the inner wall of the fixed block 108 slide together, the surface of the push-pull rod 401 is provided with a groove, and the interior of the groove is provided with an arc-shaped clip 4033, the arc-shaped clip 4033 and the inner wall of the groove slide together, the inner wall of the fixed block 108 is provided with an arc-shaped groove 4032, the arc-shaped groove 4032 and the surface of the arc-shaped clip 4033 are snap-fitted with each other, the surface of the arc-shaped clip 4033 is installed with an extension spring 4034, one end of the extension spring 4034 is fixed to the inner wall of the groove.

[0026] During implementation, the stabilizing suction cup 402 in a normal state is away from the surface of the placement location. When the user needs to install the device body 1, at this time, the user pushes the push-pull rod 401 downward, so that the push-pull rod 401 slides on the inner wall of the fixed block 108, so that the push-pull rod 401 drives the stabilizing suction cup 402 to slide inside the groove body 4031. At this time, under the elastic force of the extension spring 4034 inside the groove, the arc-shaped clamp 4033 is driven to move, so that the arc-shaped clamp 4033 is clamped to the inside of the corresponding arc-shaped clamping groove 4032. Under the clamping action of the arc-shaped clamp 4033 and the arc-shaped clamping groove 4032, the stabilizing suction cup 402 is fixed inside the groove body 4031, so that the stabilizing suction cup 402 moves to fit with the surface of the placement surface. Under the action of the stabilizing suction cup 402, the stability of the device body 1 during installation is improved, so as to realize the function of the auxiliary device to stabilize the installation of the device body 1.

[0027] Furthermore, if Figure 2 and Figure 4As shown, the inner wall of the U-shaped frame 103 is provided with a clamping anti-loosening mechanism 2, and the interior of the clamping anti-loosening mechanism 2 includes a clamping plate 201, an anti-slide plate 202 and a clamping anti-loosening portion 203, and the clamping anti-loosening portion 203 is arranged on the inner wall of the U-shaped frame 103. The clamping anti-loosening portion 203 is composed of a fixed cylinder 2031, a guide groove 2032, an electric push rod 2033 and a moving column 2034. The inner wall of the U-shaped frame 103 is installed with a fixed cylinder 2031, one end of the fixed cylinder 2031 extends to the outside of the U-shaped frame 103, and the interior of the fixed cylinder 2031 is provided with a moving column 2034. The inner wall of the fixed cylinder 2031 is provided with a guide groove 2032. The guide groove 2032 and the surface of the moving column 2034 slide with each other, and an electric push rod 2033 is installed inside the fixed cylinder 2031. The model of the electric push rod 2033 can be selected from the DG series. The input end of the electric push rod 2033 is electrically connected to the output end of the control button 101, and the output end of the electric push rod 2033 is fixed to the surface of the moving column 2034. One end of the moving column 2034 extends to the bottom of the fixed cylinder 2031. A clamping plate 201 is installed on the surface of the moving column 2034, and an anti-slip plate 202 is installed at the surface at the bottom position of the clamping plate 201 for preventing the PLC controller from slipping.

[0028] During implementation, the electric push rod 2033 inside the fixed cylinder 2031 is controlled to work, and the movable column 2034 is driven to move inside the fixed cylinder 2031 under the action of the electric push rod 2033. At this time, the movable column 2034 slides inside the guide groove 2032. When the movable column 2034 moves, the movable column 2034 drives the clamping plate 201 and the anti-slide plate 202 to move downward until they are in contact with the surface of the PLC controller. Under the joint action of the clamping plate 201 and the anti-slide plate 202, the PLC controller is clamped inside the U-shaped frame 103 to avoid displacement of the PLC controller, so as to realize the function of the auxiliary device to clamp and prevent the PLC controller from loosening.

[0029] Furthermore, if Figure 2 and Figure 5As shown, the surfaces of the fixed groove 104 and the sliding block 109 are both provided with a high-applicability mechanism 3, the interior of the high-applicability mechanism 3 includes a mounting stud 301, a connecting frame 302, a rotating ball 303 and a connecting plate 304, the surface at the bottom position of the sliding block 109 is installed with a connecting plate 304, the surface of the connecting plate 304 is provided with rotating balls 303 at equal intervals, the rotating balls 303 and the surfaces of the connecting plates 304 rotate with each other, the rotating balls 303 contact the inner wall of the fixed groove 104, the surface of the sliding block 109 is installed with a connecting frame 302, one end of the connecting frame 302 is fixed to the surface of the handle body 107, the surface of the handle body 107 is threadedly connected with a mounting stud 301 for fixing the handle body 107 on the surface of the device body 1, one end of the mounting stud 301 passes through the handle body 107 and is threadedly fastened with the surface of the device body 1.

[0030] During the implementation, the user adjusts the distance between the U-shaped frames 103 according to the size of the PLC controller to be repaired. At this time, the user loosens the mounting studs 301 on the surface of the handle body 107, and then pulls the handle body 107, so that the handle body 107 drives the connecting frame 302 to slide inside the fixed groove 104. At this time, the connecting frame 302 drives the sliding block 109 to slide inside the fixed groove 104, and the sliding block 109 drives the connecting plate 304 to slide inside the fixed groove 104. At this time, the rotating ball 303 rotates on the surface of the connecting plate 304, and the rotating ball 303 rotates on the surface of the connecting plate 304. Under the action of 303, the connecting plate 304 can move inside the fixed groove 104 more labor-saving and quickly. When the sliding block 109 moves, the sliding block 109 drives the movable frame 102 to slide on the surface of the device body 1. Under the action of the movable frame 102, the U-shaped frame 103 is driven to move, and the distance between the U-shaped frames 103 is adjusted. After the adjustment is completed, the user tightens the mounting studs 301 on the surface of the handle body 107 to fix the movable frame 102 and the U-shaped frame 103 on the surface of the device body 1, so as to realize the function of the auxiliary device to repair PLC controllers of different sizes.

[0031] Working principle: When in use, first place the device body 1 at the designated position, then, the stabilizing suction cup 402 in the normal state is away from the surface of the placement position, when the user needs to install the device body 1, at this time, the user pushes the push-pull rod 401 downward, so that the push-pull rod 401 slides on the inner wall of the fixed block 108, so that the push-pull rod 401 drives the stabilizing suction cup 402 to slide inside the groove body 4031, at this time, the arc-shaped clamp 4033 is driven to move under the elastic force of the extension spring 4034 inside the groove, so that the arc-shaped clamp 4033 is clamped to the corresponding arc-shaped clamping groove 4 032, the stabilizing suction cup 402 is fixed inside the groove body 4031 under the clamping action of the arc-shaped clamping piece 4033 and the arc-shaped clamping groove 4032, so that the stabilizing suction cup 402 moves to fit with the surface of the placement surface, and the stability of the device body 1 during installation is improved under the action of the stabilizing suction cup 402, so as to realize the function of the auxiliary device to stabilize the device body 1, so that the device body 1 can be stably installed in the designated position when the auxiliary device is used, avoiding the phenomenon that the auxiliary device is displaced during use and affects the maintenance effect of the PLC controller.

[0032] Subsequently, the user adjusts the distance between the U-shaped frames 103 according to the size of the PLC controller to be repaired. At this time, the user loosens the mounting studs 301 on the surface of the handle body 107, and then pulls the handle body 107, so that the handle body 107 drives the connecting frame 302 to slide inside the fixed groove 104. At this time, the connecting frame 302 drives the sliding block 109 to slide inside the fixed groove 104, and the sliding block 109 drives the connecting plate 304 to slide inside the fixed groove 104. At this time, the rotating ball 303 rotates on the surface of the connecting plate 304, and under the action of the rotating ball 303, the connecting plate 304 is moved in the fixed groove. The internal movement of 104 is more labor-saving and quick. When the sliding block 109 moves, the sliding block 109 drives the movable frame 102 to slide on the surface of the device body 1. Under the action of the movable frame 102, the U-shaped frame 103 is driven to move, and the distance between the U-shaped frames 103 is adjusted. After the adjustment is completed, the user tightens the mounting studs 301 on the surface of the handle body 107 to fix the movable frame 102 and the U-shaped frame 103 on the surface of the device body 1, so as to realize the function of the auxiliary device to repair PLC controllers of different sizes, thereby greatly improving the applicability of the auxiliary device when used, and further improving the practicality of the auxiliary device when used.

[0033] Subsequently, the user places the PLC controller to be repaired between the U-shaped frames 103, and then the user operates the control button 101, so that the control button 101 controls the electric push rod 2033 inside the fixed cylinder 2031 to work, and under the action of the electric push rod 2033, the moving column 2034 is driven to move inside the fixed cylinder 2031. At this time, the moving column 2034 slides inside the guide groove 2032. When the moving column 2034 moves, the moving column 2034 drives the clamping plate 201 and the anti-slide plate 202 to move downward until they are in contact with the surface of the PLC controller. Under the joint action of the clamping plate 201 and the anti-slide plate 202, the PLC controller is clamped inside the U-shaped frame 103 to avoid displacement of the PLC controller, so as to realize the function of the auxiliary device to clamp and prevent the PLC controller from loosening, so that the auxiliary device can stably clamp the PLC controller inside the U-shaped frame 103 when used, making it more convenient and smooth for the auxiliary device to repair the PLC controller, and finally completing the use of the auxiliary device.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An auxiliary device for PLC controller maintenance, comprising a device body (1), characterized in that: A control button (101) is installed on the surface of the device body (1); a movable frame (102) is installed on the surface at the top position of the device body (1); the movable frame (102) and the surface of the device body (1) are slidably matched with each other; a U-shaped frame (103) is installed on the surface of the movable frame (102); a fixing groove (104) is opened inside the device body (1); the bottom of the movable frame (102) extends to the inside of the fixing groove (104) and is installed with a sliding block (109); the sliding block (109) and the inner wall of the fixing groove (104) are slidably matched with each other; the surfaces on both sides of the device body (1) are installed with fixing blocks (108); the surface of the device body (1) is provided with a pull The hand body (107) and the surfaces of the fixed block (108) are both provided with a stable installation mechanism (4), the interior of the stable installation mechanism (4) includes a push-pull rod (401), a stable suction cup (402) and a stable installation part (403), the inner wall of the U-shaped frame (103) is provided with a clamping and anti-loosening mechanism (2), the interior of the clamping and anti-loosening mechanism (2) includes a clamping plate (201), an anti-slide plate (202) and a clamping and anti-loosening part (203), the surfaces of the fixed groove (104) and the sliding block (109) are both provided with a high-applicability mechanism (3), the interior of the high-applicability mechanism (3) includes a mounting stud (301), a connecting frame (302), a rotating ball (303) and a connecting plate (304).

2. The auxiliary device for PLC controller maintenance according to claim 1, characterized in that: The U-shaped frame (103) and the surface of the movable frame plate (102) are rotatably matched with each other. A connecting rod (105) is installed on the surface at the center position of the U-shaped frame (103). One end of the connecting rod (105) passes through the movable frame plate (102) and extends to the outside of the movable frame plate (102). The connecting rod (105) and the inner wall of the movable frame plate (102) are rotatably matched with each other. The surface of the connecting rod (105) is threadedly connected with a fastening bolt (106). One end of the fastening bolt (106) passes through the connecting rod (105) and is threadedly fastened to the surface of the movable frame plate (102).

3. The auxiliary device for PLC controller maintenance according to claim 1, characterized in that: The clamping and anti-loosening portion (203) is arranged on the inner wall of the U-shaped frame (103), and the clamping and anti-loosening portion (203) is composed of a fixed cylinder (2031), a guide groove (2032), an electric push rod (2033) and a movable column (2034). The inner wall of the U-shaped frame (103) is installed with a fixed cylinder (2031), one end of the fixed cylinder (2031) extends to the outside of the U-shaped frame (103), and the interior of the fixed cylinder (2031) is provided with a movable column (2034). The inner wall of the fixed cylinder (2031) is provided with a guide groove (2032), and the surfaces of the guide groove (2032) and the movable column (2034) are slidably matched with each other.

4. The auxiliary device for PLC controller maintenance according to claim 3 is characterized in that: An electric push rod (2033) is installed inside the fixed cylinder (2031), the input end of the electric push rod (2033) is electrically connected to the output end of the control button (101), the output end of the electric push rod (2033) is fixed to the surface of a moving column (2034), one end of the moving column (2034) extends to the bottom of the fixed cylinder (2031), a clamping plate (201) is installed on the surface of the moving column (2034), and an anti-slip plate (202) for preventing the PLC controller from slipping is installed on the surface at the bottom position of the clamping plate (201).

5. The auxiliary device for PLC controller maintenance according to claim 1, characterized in that: A connecting plate (304) is installed on the surface at the bottom of the sliding block (109), and rotating balls (303) are arranged at equal intervals on the surface of the connecting plate (304). The rotating balls (303) and the surface of the connecting plate (304) rotate with each other, and the rotating balls (303) are in contact with the inner wall of the fixing groove (104).

6. The auxiliary device for PLC controller maintenance according to claim 1, characterized in that: A connecting frame (302) is installed on the surface of the sliding block (109), one end of the connecting frame (302) is fixed to the surface of the handle body (107), and the surface of the handle body (107) is threadedly connected with a mounting stud (301) for fixing the handle body (107) to the surface of the device body (1), and one end of the mounting stud (301) passes through the handle body (107) and is threadedly fastened to the surface of the device body (1).

7. The auxiliary device for PLC controller maintenance according to claim 1, characterized in that: The stable mounting portion (403) is arranged on the surface of the fixed block (108), and the stable mounting portion (403) is composed of a groove body (4031), an arc-shaped groove (4032), an arc-shaped clamping piece (4033) and a stretching spring (4034). A push-pull rod (401) is arranged on the surface of the fixed block (108), and a groove body (4031) is opened inside the fixed block (108). A stable suction cup (402) is arranged inside the groove body (4031), and one end of the push-pull rod (401) extends to the inside of the groove body (4031) and is fixed to the surface of the stable suction cup (402), and the push-pull rod (401) and the inner wall of the fixed block (108) are slidably matched with each other.

8. The auxiliary device for PLC controller maintenance according to claim 7, characterized in that: The push-pull rod (401) is provided with a groove on its surface, and an arc-shaped clamp (4033) is arranged inside the groove, and the arc-shaped clamp (4033) and the inner wall of the groove are slidably matched with each other. The inner wall of the fixed block (108) is provided with an arc-shaped clamping groove (4032), and the arc-shaped clamping groove (4032) and the surface of the arc-shaped clamp (4033) are clamped and matched with each other. The surface of the arc-shaped clamp (4033) is installed with an extension spring (4034), and one end of the extension spring (4034) is fixed to the inner wall of the groove.

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