Laser cleaning pipeline outer wall device

Abstract

The utility model discloses a pipeline outer wall laser cleaning device which comprises a mounting frame, a pipeline conveying device, a cleaning tank and a cleaning device, and a pipeline to be cleaned penetrates through the mounting frame; the pipeline conveying device is used for enabling the pipeline to move in the radial direction in the direction of the mounting frame. The multiple cleaning tanks are arranged on the mounting frame in an array mode. The cleaning device is used for derusting a to-be-cleaned pipeline; wherein the cleaning device comprises sliding seats, a sliding plate, a driving assembly and a laser generating assembly, the number and the position of the sliding seats correspond to the number and the position of the cleaning grooves, the sliding plate is installed on the sliding seats in a sliding mode, and the driving assembly is installed on the sliding seats; the pipeline cleaning device aims to solve the problem that the service life of a pipeline is affected due to the fact that the surface of the pipeline is damaged when the pipeline cleaning device is used for cleaning the pipeline in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, in particular to a device for laser cleaning the outer wall of a pipeline. Background Art

[0002] Pipeline cleaning refers to cleaning the pipeline to remove dirt, rust and sediment on the inner wall of the pipeline to restore the normal operation of the pipeline. Common pipeline cleaning methods include: chemical cleaning, high-pressure water jet cleaning and manual cleaning; using chemical agents to circulate the pipeline for cleaning, usually requires temporary modification of the pipeline to form a circulation system; chemical cleaning has the advantages of strong flexibility and thorough cleaning, but chemical agents are corrosive to the pipeline; when using high-pressure water jet cleaning, use a high-pressure water jet of more than 50MPa to remove the dirt on the inner wall of the pipeline and clean it.

[0003] The utility model patent with application number: CN202020695831.6 and publication number: CN212497164U (hereinafter referred to as "prior art 1") discloses a chemical engineering pipeline cleaning device, including a support shell, a support tube welded to the front end of the support shell; a rotating shell is axially connected to the rear side of the support shell; secondary telescopic rods are welded around the outer wall of the rotating shell, and a cleaning brush is installed on the end bolts of the secondary telescopic rods; a water spray cleaning end box structure is interspersed in the support shell; a mounting and driving support shell structure is installed on the front part of the outer wall of the support tube; supporting electric cylinders are supported on all sides of the outer wall of the mounting and driving support shell structure, and a pressure detection protection seat structure is installed on the output shaft bolts of the supporting electric cylinder; the supporting electric cylinder is electrically connected to a PLC.

[0004] The specification of prior art 1 discloses a chemical engineering pipeline cleaning device. When in use, the pipeline is cleaned and rusted by spraying water and rotating a brush. However, in actual application, cleaning the pipeline with a brush will damage the surface of the pipeline. After a long period of cleaning, the wall thickness of the pipeline will become thinner, affecting the service life of the pipeline. Summary of the invention

[0005] The utility model provides a laser pipeline outer wall cleaning device, which aims to solve the problem that the pipeline cleaning device in the prior art may damage the surface of the pipeline during the pipeline cleaning process, thereby affecting the service life of the pipeline.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A laser cleaning device for the outer wall of a pipeline comprises a mounting frame, a pipeline conveying device, a cleaning tank and a cleaning device, wherein the mounting frame is used to pass through the pipeline to be cleaned; the pipeline conveying device is used to make the pipeline move radially along the direction of the mounting frame; there are a plurality of cleaning tanks, and the plurality of cleaning tank arrays are arranged on the mounting frame; the cleaning device is used to remove rust from the pipeline to be cleaned;

[0008] Among them, the cleaning device includes a sliding seat, a slide plate, a driving assembly and a laser generating assembly. The number and position of the sliding seats correspond to the number and position of the cleaning tanks. The slide plate is slidably installed on the sliding seat, the driving assembly is installed on the sliding seat, and the laser generator is installed on the slide plate. The driving assembly is used to drive the laser generator and the slide plate to slide back and forth on the sliding seat; a plurality of laser generators are used to emit lasers and then pass through the cleaning tanks to fully cover the outer walls of the pipelines to be cleaned and remove rust from the pipelines to be cleaned.

[0009] Furthermore, the mounting frame includes a frame body and a cleaning cylinder, the frame bodies are arranged at both ends of the cleaning cylinder, and the cleaning groove is opened on the cleaning cylinder; a plurality of the cleaning devices are arranged in an array on the frame body.

[0010] Furthermore, the laser generating component includes a laser generator and a protective shell, a laser emission outlet is provided on the protective shell, the laser generator is installed inside the protective shell, and the laser generator is used to emit laser light through the laser emission outlet.

[0011] Furthermore, there are eight cleaning tanks, which are divided into two groups and arranged in an array on the cleaning cylinder. The cleaning tanks have an inclination angle with the axial direction of the cleaning cylinder. The number and position of the sliding seats correspond to the cleaning tanks. The sliding seats are also divided into two groups, and the two groups of sliding seats are respectively arranged on two frames.

[0012] Furthermore, the driving assembly includes a motor, a ball screw and a screw nut. The motor is installed on the sliding seat. The motor is connected to the ball screw and is used to drive the ball screw to rotate. The ball screw is rotatably installed on the sliding seat. The screw nut is fixedly installed under the sliding seat, and the screw nut and the ball screw cooperate with each other.

[0013] Furthermore, the slide plate is a U-shaped structure, a sliding area is formed between the slide plate of the U-shaped structure and the sliding seat, and the ball screw is rotatably installed inside the sliding area.

[0014] Furthermore, the motor is connected to the ball screw through a transmission mechanism, and the motor is used to drive the ball screw to rotate through the transmission mechanism.

[0015] Furthermore, the transmission mechanism includes a driving gear and a driven gear, the driving gear is mounted on the output shaft of the motor, the driven gear is mounted on the end of the ball screw, and the driving gear and the driven gear are meshed with each other.

[0016] Furthermore, a dust suction port is provided on the cleaning cylinder, and the dust suction port is connected to a vacuum cleaner.

[0017] Furthermore, a lifting device is also provided at the bottom of the frame body, and the lifting device includes a lifting frame, a support platform, an internally threaded sleeve, a bearing seat, a handwheel and a screw rod. The lifting frame is arranged at the bottom of the two frames, and the support platform is arranged below the lifting frame, and the lifting frame is slidably connected to the support platform; the internally threaded sleeve is installed below the support platform, one end of the screw rod is threadedly connected to the internally threaded sleeve, and the other end passes through the support platform and is rotatably connected to the bearing seat inside the support platform; the handwheel is rotatably installed on the internally threaded sleeve through a rotating rod, and an internally threaded bevel gear is also rotatably arranged in the internally threaded sleeve, and an active bevel gear is arranged on the rotating rod, and the active bevel gear and the internally threaded bevel gear are meshed with each other; a guide rod is also provided on the support platform, and the guide rod is slidably connected to the support platform, and the end of the guide rod is fixedly connected to the lifting frame.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model mainly includes a mounting frame, a pipeline conveying device, a cleaning tank and a cleaning device. The mounting frame is used to pass through the pipeline to be cleaned. In actual use, the staff first places the pipeline to be cleaned on the pipeline conveying device, and then drives the pipeline conveying device to convey the pipeline to be cleaned. In this process, the pipeline to be cleaned needs to pass through the mounting frame. At this time, the laser generating component is started. The laser generating component emits a laser through the cleaning tank and then shoots on the outer wall of the pipeline to be cleaned. Several laser generating components surround the pipeline to be cleaned. The lasers emitted by several laser generating components will cover the outer wall of the pipeline to be cleaned in all directions. Along with the transportation of the pipeline, the laser generating component cleans and removes rust from the entire pipeline. Finally, the cleaned pipeline passes through the mounting frame to complete the cleaning and rust removal of the pipeline to be cleaned. The advantage of this setting is that the laser is used to cover and remove rust from the pipeline, and no hard contact with the pipeline is required, which reduces damage to the pipeline and increases the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a side view of the utility model.

[0023] Figure 3 This is one of the partial cross-sectional views of the present utility model.

[0024] Figure 4 This is the second partial cross-sectional view of the present utility model.

[0025] In the figure, 101-mounting frame, 102-pipeline, 103-cleaning tank, 104-sliding seat, 105-slide plate, 106-frame, 107-cleaning cylinder, 108-laser generator, 109-protective shell, 110-motor, 111-ball screw, 112-screw nut, 113-driving gear, 114-driven gear, 115-dust suction port, 116-lifting frame, 117-support platform, 118-internal thread sleeve, 119-bearing seat, 120-handwheel, 121-screw, 122-internal thread bevel gear, 123-driving bevel gear, 124-guide rod. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the protection scope of the present invention.

[0027] See also Figure 1-Figure 4 As shown, this embodiment discloses a laser cleaning device for the outer wall of a pipeline 102, comprising a mounting frame 101, a pipeline 102 conveying device, a cleaning tank 103 and a cleaning device, wherein the mounting frame 101 is used to pass through the pipeline 102 to be cleaned; the pipeline 102 conveying device is used to make the pipeline 102 move radially along the direction of the mounting frame 101; there are a plurality of cleaning tanks 103, and the plurality of cleaning tanks 103 are arranged in an array on the mounting frame 101; the cleaning device is used to remove rust from the pipeline 102 to be cleaned;

[0028] The cleaning device includes a sliding seat 104, a slide plate 105, a driving component and a laser generating component. The number and position of the sliding seats 104 correspond to the number and position of the cleaning tanks 103. The slide plate 105 is slidably mounted on the sliding seat 104. The driving component is mounted on the sliding seat 104. The laser generator 108 is mounted on the slide plate 105. The driving component is used to drive the laser generator 108 and the slide plate 105 to slide back and forth on the sliding seat 104. The plurality of laser generators 108 are used to emit lasers and pass through the cleaning tanks 103 to fully cover the outer wall of the pipeline 102 to be cleaned and remove rust from the pipeline 102 to be cleaned.

[0029] The utility model mainly comprises a mounting frame 101, a pipeline 102 conveying device, a cleaning tank 103 and a cleaning device, wherein the mounting frame 101 is used to pass through the pipeline 102 to be cleaned; in actual use, the staff first places the pipeline 102 to be cleaned on the pipeline 102 conveying device, and then drives the pipeline 102 conveying device to convey the pipeline 102 to be cleaned. In this process, the pipeline 102 to be cleaned needs to pass through the mounting frame 101, at this time, the laser generating component is started, and the laser generating component emits a laser that passes through the cleaning tank 103 and then shoots on the outer wall of the pipeline 102 to be cleaned. A number of laser generating components surround the pipeline 102 to be cleaned, and the lasers emitted by the laser generating components fully cover the outer wall of the pipeline 102 to be cleaned. Along with the conveying of the pipeline 102, the laser generating component cleans and removes rust on the entire pipeline 102, and finally the cleaned pipeline 102 passes through the mounting frame 101, completing the cleaning and rust removal of the pipeline 102 to be cleaned. The advantage of such a configuration is that when the laser is used to cover and then remove rust from the pipeline 102 , no hard contact with the pipeline 102 is required, thus reducing damage to the pipeline 102 and increasing the service life of the pipeline 102 .

[0030] In some embodiments, the mounting frame 101 includes a frame body 106 and a cleaning cylinder 107 . The frame body 106 is disposed at both ends of the cleaning cylinder 107 . The cleaning tank 103 is opened on the cleaning cylinder 107 . A plurality of the cleaning devices are arranged in an array on the frame body 106 .

[0031] In actual use, there are two frames 106 , which are respectively installed on both sides of the cleaning cylinder 107 . The two frames 106 and the cleaning cylinder 107 form an integrated structure after installation; the frames 106 are used to install the cleaning device, and the pipeline 102 to be cleaned is used to pass through the cleaning cylinder 107 .

[0032] In some embodiments, the laser generating assembly includes a laser generator 108 and a protective shell 109. The protective shell 109 is provided with a laser emission outlet. The laser generator 108 is installed inside the protective shell 109. The laser generator 108 is used to emit laser light through the laser emission outlet.

[0033] In actual use, the protective shell 109 is used to protect the laser generator 108 , and the laser emission outlet is used to allow the laser to pass through the protective shell 109 .

[0034] In some embodiments, there are eight cleaning tanks 103, which are divided into two groups and arranged in an array on a cleaning cylinder 107. The cleaning tanks 103 and the axial direction of the cleaning cylinder 107 have an inclination angle. The number and position of the sliding seats 104 correspond to the cleaning tanks 103, and the plurality of sliding seats 104 are also divided into two groups. The two groups of sliding seats 104 are respectively arranged on two frames 106.

[0035] In actual use, four cleaning tanks 103 form a group, and the four cleaning tanks 103 correspond to four sliding seats 104, and the four sliding seats 104 are located at the four corners of the frame 106; after the four laser generators 108 corresponding to each group of cleaning tanks 103 pass through the inclined cleaning tanks 103, the light beams emitted by the four laser generators 108 can clean the rust stains on the outer surface of the pipeline 102 to be cleaned.

[0036] In some embodiments, the driving assembly includes a motor 110, a ball screw 111 and a screw nut 112. The motor 110 is installed on the sliding seat 104. The motor 110 is connected to the ball screw 111 and is used to drive the ball screw 111 to rotate. The ball screw 111 is rotatably installed on the sliding seat 104. The screw nut 112 is fixedly installed below the sliding seat 104, and the screw nut 112 cooperates with the ball screw 111.

[0037] In actual use, the motor 110 rotates to drive the ball screw 111 to rotate, and the ball screw 111 rotates to drive the screw nut 112 and the slide plate 105 to move on the sliding seat 104, thereby changing the distance between the laser generator 108 and the cleaning cylinder 107, in order to adapt to pipes 102 of different sizes.

[0038] In some embodiments, the slide plate 105 is a U-shaped structure, a sliding area is formed between the U-shaped slide plate 105 and the sliding seat 104, and the ball screw 111 is rotatably installed inside the sliding area.

[0039] In actual use, the U-shaped slide plate 105 forms a sliding area to provide space for the installation of the ball screw 111 .

[0040] In some embodiments, the motor 110 is connected to the ball screw 111 through a transmission mechanism, and the motor 110 is used to drive the ball screw 111 to rotate through the transmission mechanism. The use of the transmission mechanism can facilitate the sliding of the slide plate 105 to give way.

[0041] In some embodiments, the transmission mechanism includes a driving gear 113 and a driven gear 114 . The driving gear 113 is mounted on the output shaft of the motor 110 , and the driven gear 114 is fixedly mounted on the end of the ball screw 111 . The driving gear 113 and the driven gear 114 are meshed with each other.

[0042] In actual use, the motor 110 rotates to drive the driving gear 113 to rotate, and the driving gear 113 rotates to drive the driven gear 114 to rotate, thereby achieving the purpose of driving the ball screw 111 to rotate after the motor 110 rotates.

[0043] In some embodiments, a dust suction port 115 is provided on the cleaning cylinder 107, and the dust suction port 115 is connected to a vacuum cleaner.

[0044] In actual use, the purpose of providing the dust suction port 115 is to facilitate the absorption of the processed iron filings to prevent the iron filings from scattering and being inconvenient to clean up.

[0045] In some embodiments, a lifting device is further provided at the bottom of the frame 106, and the lifting device includes a lifting frame 116, a support platform 117, an internally threaded sleeve 118, a bearing seat 119, a hand wheel 120 and a screw 121. The lifting frame 116 is provided at the bottom of the two frames 106, and the support platform 117 is provided below the lifting frame 116, and the lifting frame 116 is slidably connected to the support platform 117; the internally threaded sleeve 118 is installed below the support platform 117, one end of the screw 121 is threadedly connected to the internally threaded sleeve 118, and the other end of the screw 121 is threadedly connected to the internally threaded sleeve 118. The end passes through the support platform 117 and is rotatably connected to the bearing seat 119 inside the support platform 117; the handwheel 120 is rotatably installed on the internal threaded sleeve 118 through a rotating rod, and an internal threaded bevel gear 122 is also rotatably arranged in the internal threaded sleeve 118, and an active bevel gear 123 is arranged on the rotating rod, and the active bevel gear 123 and the internal threaded bevel gear 122 are meshed with each other; a guide rod 124 is also arranged on the support platform 117, and the guide rod 124 is slidably connected to the support platform 117, and the end of the guide rod 124 is fixedly connected to the lifting frame 116.

[0046] In actual use, when the mounting frame 101 needs to be raised as a whole, the staff needs to rotate the hand wheel 120, and the hand wheel 120 rotates to drive the active bevel gear 123 to rotate, and the active bevel gear 123 rotates to drive the internal thread bevel gear 122 to rotate. Since the internal thread bevel gear 122 and the screw rod 121 are threadedly matched, the screw rod 121 will cause the lifting frame 116 to be raised as a whole due to the rotation of the internal thread bevel gear 122. After the lifting frame 116 is raised, the mounting frame 101 as a whole follows the lifting frame 116 to be raised as a whole, thus achieving the purpose of freely adjusting the height of the mounting frame 101. The advantage of such a setting is that it is easy to adapt to pipeline 102 conveying devices of different heights.

[0047] It should be noted that in this embodiment, the pipeline 102 conveying device uses existing technology, and the pipeline 102 conveying device is mainly used to move the pipeline 102 along the radial position of the mounting frame 101; this embodiment does not involve improvements to the pipeline 102 conveying device, which will not be described here one by one.

[0048] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0050] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cleaning device for the outer wall of a pipeline (102), characterized in that: include: A mounting frame (101), wherein the mounting frame (101) is used for passing a pipeline (102) to be cleaned; A pipeline (102) conveying device, the pipeline (102) conveying device is used to make the pipeline (102) move radially along the direction of the mounting frame (101); A cleaning tank (103), wherein there are a plurality of cleaning tanks (103), and the plurality of cleaning tanks (103) are arranged in an array on the mounting frame (101); A cleaning device, the cleaning device being used to remove rust from a pipeline (102) to be cleaned; The cleaning device comprises a sliding seat (104), a sliding plate (105), a driving assembly and a laser generating assembly. The number and position of the sliding seats (104) correspond to the number and position of the cleaning tanks (103). The sliding plate (105) is slidably mounted on the sliding seat (104). The driving assembly is mounted on the sliding seat (104). The laser generator (108) is mounted on the sliding plate (105). The driving assembly is used to drive the laser generator (108) and the sliding plate (105) to slide back and forth on the sliding seat (104). The plurality of laser generators (108) are used to emit lasers and then pass through the cleaning tanks (103) to fully cover the outer wall of the pipeline (102) to be cleaned and remove rust from the pipeline (102) to be cleaned.

2. A laser cleaning device for the outer wall of a pipeline (102) according to claim 1, characterized in that: The mounting frame (101) comprises a frame body (106) and a cleaning cylinder (107). The frame body (106) is disposed at both ends of the cleaning cylinder (107). The cleaning tank (103) is provided on the cleaning cylinder (107). A plurality of the cleaning devices are arranged in an array on the frame body (106).

3. A laser cleaning device for the outer wall of a pipeline (102) according to claim 1, characterized in that: The laser generating component comprises a laser generator (108) and a protective shell (109). The protective shell (109) is provided with a laser emission outlet. The laser generator (108) is installed inside the protective shell (109). The laser generator (108) is used to emit laser light through the laser emission outlet.

4. A laser cleaning device for the outer wall of a pipeline (102) according to claim 2, characterized in that: There are eight cleaning grooves (103), which are divided into two groups and arranged in an array on a cleaning cylinder (107). The cleaning grooves (103) and the axial direction of the cleaning cylinder (107) have an inclination angle. The number and position of the sliding seats (104) correspond to the cleaning grooves (103). The plurality of sliding seats (104) are also divided into two groups. The two groups of sliding seats (104) are respectively arranged on two frames (106).

5. The laser cleaning device for the outer wall of a pipeline (102) according to claim 1, characterized in that: The driving assembly comprises a motor (110), a ball screw (111) and a screw nut (112); the motor (110) is mounted on a sliding seat (104); the motor (110) is connected to the ball screw (111) and is used to drive the ball screw (111) to rotate; the ball screw (111) is rotatably mounted on the sliding seat (104); the screw nut (112) is fixedly mounted below the sliding seat (104); and the screw nut (112) and the ball screw (111) cooperate with each other.

6. A laser cleaning device for the outer wall of a pipeline (102) according to claim 5, characterized in that: The slide plate (105) is a U-shaped structure, a sliding area is formed between the slide plate (105) of the U-shaped structure and the sliding seat (104), and the ball screw (111) is rotatably installed inside the sliding area.

7. A laser cleaning device for the outer wall of a pipeline (102) according to claim 5, characterized in that: The motor (110) is connected to the ball screw (111) via a transmission mechanism, and the motor (110) is used to drive the ball screw (111) to rotate via the transmission mechanism.

8. A laser cleaning device for the outer wall of a pipeline (102) according to claim 7, characterized in that: The transmission mechanism comprises a driving gear (113) and a driven gear (114), wherein the driving gear (113) is mounted on the output shaft of the motor (110), and the driven gear (114) is mounted on the end of the ball screw (111), and the driving gear (113) and the driven gear (114) are meshed with each other.

9. The laser cleaning device for the outer wall of a pipeline (102) according to claim 2, characterized in that: The cleaning cylinder (107) is provided with a dust suction port (115), and the dust suction port (115) is connected to a dust collector.

10. The laser cleaning device for the outer wall of a pipeline (102) according to claim 1, characterized in that: A lifting device is also provided at the bottom of the frame (106), and the lifting device includes a lifting frame (116), a support platform (117), an internally threaded sleeve (118), a bearing seat (119), a hand wheel (120) and a screw rod (121). The lifting frame (116) is provided at the bottom of the two frames (106), the support platform (117) is provided below the lifting frame (116), and the lifting frame (116) and the support platform (117) are slidably connected; the internally threaded sleeve (118) is installed below the support platform (117), one end of the screw rod (121) is threadedly connected to the internally threaded sleeve (118), and the other end passes through the internally threaded sleeve (118). The support platform (117) is rotatably connected to a bearing seat (119) inside the support platform (117) at the rear; the hand wheel (120) is rotatably mounted on the internal thread sleeve (118) through a rotating rod; an internal thread bevel gear (122) is also rotatably arranged in the internal thread sleeve (118); an active bevel gear (123) is arranged on the rotating rod; the active bevel gear (123) and the internal thread bevel gear (122) are meshed with each other; a guide rod (124) is also arranged on the support platform (117); the guide rod (124) is slidably connected to the support platform (117); and the end of the guide rod (124) is fixedly connected to the lifting frame (116).

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