QV periscope battery placement structure

Abstract

The utility model discloses a QV periscope battery placing structure, including mounting bracket and buffer frame, the top outer wall of mounting bracket is installed with buffer frame, and buffer frame extends to the outside of mounting bracket, the top of mounting bracket is installed with mounting bush, the surface of buffer frame is equipped with buffer bush, the outside of mounting bracket of buffer frame one side is provided with rear casing, the outer wall of rear casing is installed with front casing, the surface of buffer frame of buffer bush top is equipped with left fixed sleeve. The utility model not only has realized that battery placing structure is convenient and stable to the placement of battery, has made the positive and negative pole of battery and the positive and negative pole of QV periscope elastic close contact conveniently, has reduced the problem of QV periscope power failure, and has made the convenient patrol of QV periscope to pipeline, has made the convenient shooting capture of QV periscope in the situation inside pipeline, has made the position of the detection of QV periscope to pipeline inside of inclined type adjustment.

Description

Technical Field

[0001] This utility model relates to the field of battery placement structure technology, specifically a QV periscope battery placement structure. Background Technology

[0002] The QV periscope is an imaging device used for rapid pipeline inspection. It allows you to quickly survey the internal conditions of pipelines using a high-definition camera and a powerful light source, without the need for personnel to enter the pipeline. The battery placement structure of the QV periscope may vary depending on the manufacturer's design and product model, but the core objectives are the same: to ensure stable power supply, convenient installation and removal, safe use, and adaptability to complex operating environments.

[0003] For example, the QV periscope for pipeline inspection disclosed in the authorization announcement number CN216083272U includes a telescopic rod, a lens, and a protective box with an open end on the outside of the lens. One end of the telescopic rod is connected to the protective box. The top of the protective box has grooves at both ends, and tempered transparent glass is inserted into the grooves. A protective component is provided on the outside of the lens, and the protective component is connected to the protective box through a sliding component.

[0004] Although it achieves the goal of protecting the lens from environmental influences during its forward movement by using a protective box, and then using a motor to drive the slide rail to move, allowing the lens to come out of the protective box for inspection, it also allows the lens to be observed through tempered transparent glass first, and then determines whether the conditions for extending the lens are met, thus further protecting the lens.

[0005] However, the existing battery placement structure does not solve the problem that it is generally not conducive to convenient and stable placement of batteries during use, makes it difficult to achieve elastic and tight contact between the positive and negative terminals of the battery and the positive and negative terminals of the QV periscope, and makes it difficult to tilt and adjust the position of the QV periscope for internal pipe inspection. This seriously affects the convenience of using the battery placement structure, greatly impacts its safety, and causes great inconvenience to users. Utility Model Content

[0006] The purpose of this utility model is to provide a battery placement structure for a QV periscope, so as to solve the problems mentioned in the background art that the battery placement structure is not convenient for convenient and stable placement of the battery, not convenient for elastic and tight contact between the positive and negative terminals of the battery and the positive and negative terminals of the QV periscope, and not convenient for tilting and adjusting the position of the QV periscope for internal pipe detection.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a QV periscope battery placement structure, including a mounting frame and a buffer frame. A buffer frame is mounted on the top outer wall of the mounting frame, extending beyond the mounting frame. A mounting sleeve is mounted on the top of the mounting frame. A buffer sleeve is fitted onto the surface of the buffer frame. A rear housing is provided outside the mounting frame on one side of the buffer frame. A front housing is mounted on the outer wall of the rear housing. A left fixing sleeve is fitted onto the surface of the buffer frame above the buffer sleeve. A right fixing sleeve is fitted onto the surface of the buffer frame on one side of the left fixing sleeve. A left drive shaft is movably mounted inside the left fixing sleeve, extending into the rear housing and connected to it. A right drive shaft is movably mounted inside the right fixing sleeve, extending into the rear housing and connected to it. A sealing strip is installed on the outer wall of the rear housing on the right drive shaft side. A battery mounting shell is installed on the outer wall of the rear housing on the side away from the front housing. A battery fixing component is installed inside the battery mounting shell. A battery body is slidably installed inside the battery fixing component, and the battery body extends to the outside of the battery fixing component. A positioning spring is installed inside the battery fixing component on the side of the battery body. A metal spring is provided inside the battery fixing component on the side of the positioning spring. One end of the positioning spring is connected to the battery fixing component, and the other end of the positioning spring is connected to the metal spring. Input positive and negative terminals are installed on the outer wall of the metal spring. Output positive and negative terminals are installed on the outer wall of the battery body. A battery cover plate slides on the outer wall of the battery mounting shell on the side of the battery body. A sealing ring is fitted on the surface of the battery cover plate, and the sealing ring is slidably connected to the battery mounting shell.

[0008] Preferably, a camera is installed inside the rear housing on one side of the sealing strip, and the camera extends into the interior of the front housing.

[0009] Preferably, the camera is symmetrically equipped with high beam lights at its top, and the high beam lights extend into the interior of the front housing.

[0010] Preferably, the outer wall of the camera is equipped with three sets of equally spaced low beam lights, and the low beam lights extend into the interior of the front housing.

[0011] Preferably, a laser rangefinder is installed inside the rear housing below the camera, and the laser rangefinder extends into the interior of the front housing.

[0012] Preferably, a wireless transmission module is installed on the outer wall of the rear housing above the battery mounting housing.

[0013] Preferably, a driven gear is fitted on the surface of the left drive shaft near the rear housing, and a power motor is installed inside the rear housing above the driven gear.

[0014] Preferably, the output end of the power motor is equipped with a drive gear, and the drive gear meshes with the driven gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the battery placement structure not only realizes the convenient and stable placement of the battery, but also facilitates the elastic and tight contact between the positive and negative terminals of the battery and the positive and negative terminals of the QV periscope, reducing the problem of power failure of the QV periscope. In addition, it facilitates convenient inspection of the pipeline by the QV periscope, facilitates convenient shooting and capturing of the situation inside the pipeline by the QV periscope, and facilitates tilting adjustment of the position of the QV periscope for inspection inside the pipeline. (1) By manually placing the battery body inside the battery fixing part on one side of the battery mounting shell, the positioning spring elastically drives the metal spring to move, so as to facilitate the adjustment of the internal space of the battery mounting shell. At the same time, it is convenient for the input positive and negative poles on the surface of the metal spring to make close contact with the output positive and negative poles on the surface of the battery body, so as to improve the connection effect between the battery body and the battery fixing part and reduce the risk of power failure. After the battery body is installed, the battery body is pressed by the battery cover plate, so that the battery mounting shell becomes a sealed cavity under the cooperation of the battery cover plate and the sealing ring, preventing liquid from entering and causing damage to the battery body. It is convenient to wrap the battery body with the battery mounting shell, so as to better protect the battery body and the equipment body. The battery placement structure makes it convenient and stable to place the battery, facilitates the elastic close contact between the positive and negative poles of the battery and the positive and negative poles of the QV periscope, reduces the problem of power failure of the QV periscope, facilitates convenient wrapping and installation of the battery in the QV periscope, and facilitates convenient protection of the motor. (2) Connect the mounting sleeve to the external telescopic rod. Place the front housing and the left fixed sleeve inside the pipe through the external telescopic rod. The buffer sleeve and buffer frame buffer and dampen the rear housing and the front housing to prevent damage to the power motor, camera, low beam lamp, and laser rangefinder caused by vibration. The sealing strip makes the rear housing and the front housing a sealed cavity to prevent liquid from entering and damaging the power motor, camera, high beam lamp, low beam lamp, and laser rangefinder. Manually use an external handheld tablet or host to control the camera to open through the wireless transmission module, so as to facilitate the transmission of the video signal captured by the camera inside the pipe to the external handheld tablet or host through the wireless transmission module. When the visibility inside the pipe is low, manually use an external handheld tablet or host to control the high beam lamp or low beam lamp to open through the wireless transmission module, so as to facilitate the camera to clearly capture the situation inside the pipe. When it is necessary to measure the width of the crack or the size of the blockage inside the pipe, manually use an external handheld tablet or host to control the laser rangefinder to open through the wireless transmission module, so as to facilitate the laser rangefinder to measure the pipe. The width of cracks or the size of blockages inside the pipe are measured using a laser rangefinder. The data signal detected by the laser rangefinder is transmitted wirelessly to an external handheld tablet or host, allowing staff to assess the condition inside the pipe. When the camera's position needs adjustment, the manual handheld tablet or host uses the wireless transmission module to control the motor. The motor drives the drive gear, which in turn drives the driven gear, which in turn drives the left drive shaft. The left drive shaft then drives the rear housing, while the right drive shaft provides support for the rear housing. This allows the rear housing to rotate the front housing, camera, high beam, low beam, and laser rangefinder, facilitating easy imaging and capture of the pipe's interior. The battery provides power to the camera, high beam, low beam, laser rangefinder, and motor, enabling convenient pipe inspection using the QV periscope. This facilitates easy imaging and capture of the pipe's interior, allows for tilting adjustments to the QV periscope's position, and increases the inspection range. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the rear shell of this utility model; Figure 4 This is a three-dimensional structural diagram of the battery cover plate of this utility model; Figure 5 This is a three-dimensional structural diagram of the metal spring of this utility model; Figure 6 This is a three-dimensional structural diagram of the battery body of this utility model; Figure 7 This is a three-dimensional structural diagram of the sealing ring of this utility model; Figure 8 This is a three-dimensional structural diagram of the battery mounting shell of this utility model. Figure 9 This is a three-dimensional structural diagram of the power motor of this utility model; Figure 10 This is a three-dimensional structural diagram of the camera of this utility model; Figure 11 This is a three-dimensional structural diagram of the high beam headlight of this utility model.

[0017] In the diagram: 1. Mounting bracket; 2. Buffer bracket; 3. Mounting sleeve; 4. Buffer sleeve; 5. Rear housing; 6. Front housing; 7. Left fixing sleeve; 8. Right fixing sleeve; 9. Left drive shaft; 10. Right drive shaft; 11. Sealing strip; 12. Battery fixing component; 13. Battery body; 14. Positioning spring; 15. Metal spring; 16. Input positive and negative terminals; 17. Output positive and negative terminals; 18. Battery cover plate; 19. Sealing ring; 20. Camera; 21. High beam headlight; 22. Low beam headlight; 23. Laser rangefinder; 24. Wireless transmission module; 25. Power motor; 26. Drive gear; 27. Driven gear; 28. Battery mounting shell. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Please see Figure 1-11This utility model provides an embodiment of a QV periscope battery placement structure, including a mounting frame 1 and a buffer frame 2. The buffer frame 2 is installed on the top outer wall of the mounting frame 1 and extends to the outside of the mounting frame 1. A mounting sleeve 3 is installed at the top of the mounting frame 1. A buffer sleeve 4 is fitted on the surface of the buffer frame 2. A rear housing 5 is provided on the outside of the mounting frame 1 on one side of the buffer frame 2. A front housing 6 is installed on the outer wall of the rear housing 5. A left fixing sleeve 7 is fitted on the surface of the buffer frame 2 above the buffer sleeve 4. A right fixing sleeve 8 is fitted on the surface of the buffer frame 2 on one side of the left fixing sleeve 7. A left drive shaft 9 is movably installed inside the left fixing sleeve 7 and extends into the interior of the rear housing 5 and is connected to the rear housing 5. A right drive shaft 10 is movably installed inside the right fixing sleeve 8 and extends into the interior of the rear housing 5 and is connected to the rear housing 5. A buffer sleeve 4 is installed on the outer wall of the rear housing 5 on one side of the right drive shaft 10. A sealing strip 11 is installed. A battery mounting shell 28 is installed on the outer wall of the rear shell 5 away from the front shell 6. A battery fixing member 12 is installed inside the battery mounting shell 28. A battery body 13 is slidably installed inside the battery fixing member 12 and extends to the outside of the battery fixing member 12. A positioning spring 14 is installed inside the battery fixing member 12 on one side of the battery body 13. A metal spring 15 is provided inside the battery fixing member 12 on one side of the positioning spring 14. One end of the positioning spring 14 is connected to the battery fixing member 12, and the other end of the positioning spring 14 is connected to the metal spring 15. Input positive and negative terminals 16 are installed on the outer wall of the metal spring 15. Output positive and negative terminals 17 are installed on the outer wall of the battery body 13. A battery cover 18 is slidably installed on the outer wall of the battery mounting shell 28 on one side of the battery body 13. A sealing ring 19 is fitted on the surface of the battery cover 18 and is slidably connected to the battery mounting shell 28. When the battery body 13 needs to be installed, it is manually placed inside the battery fixing member 12 on one side of the battery mounting shell 28. The battery fixing member 12 provides sliding support for the battery body 13. Under the compression of the positioning spring 14 inside the battery fixing member 12 by the battery body 13, and supported by the positioning spring 14 by the battery fixing member 12, the positioning spring 14 elastically drives the metal spring 15 to move, so as to facilitate the adjustment of the internal space of the battery mounting shell 28. At the same time, it facilitates the tight contact between the input positive and negative terminals 16 on the surface of the metal spring 15 and the output positive and negative terminals 17 on the surface of the battery body 13, thereby improving the connection effect between the battery body 13 and the battery fixing member 12 and reducing the likelihood of power outages. The problem is that after the battery body 13 is installed, the battery body 13 is manually pressed down by the battery cover plate 18. This makes it easier for the battery mounting shell 28 to become a sealed cavity with the cooperation of the battery cover plate 18 and the sealing ring 19, so as to prevent liquid from entering and causing damage to the battery body 13. This also makes it easier to wrap the battery body 13 with the battery mounting shell 28, so as to better protect the battery body 13 and the equipment body. This achieves convenient and stable placement of the battery by the battery placement structure, facilitates the elastic and tight contact between the positive and negative terminals of the battery and the positive and negative terminals of the QV periscope, reduces the problem of power failure of the QV periscope, facilitates convenient wrapping and installation of the battery for the QV periscope, and facilitates convenient protection of the motor. A camera 20 is installed inside the rear housing 5 on one side of the sealing strip 11, and the camera 20 extends into the interior of the front housing 6. A high beam 21 is symmetrically installed on the top of the camera 20, and the high beam 21 extends into the interior of the front housing 6. Three sets of low beam 22 with equal spacing are installed on the outer wall of the camera 20, and the low beam 22 extends into the interior of the front housing 6. A laser rangefinder 23 is installed inside the rear housing 5 below the camera 20, and the laser rangefinder 23 extends into the interior of the front housing 6. A wireless transmission module 24 is installed on the outer wall of the rear housing 5 above the battery mounting housing 28. A driven gear 27 is fitted on the surface of the left drive shaft 9 near the rear housing 5. A power motor 25 is installed inside the rear housing 5 above the driven gear 27. A drive gear 26 is installed at the output end of the power motor 25, and the drive gear 26 meshes with the driven gear 27. When the QV periscope is needed to inspect the pipeline, the mounting sleeve 3 is connected to the external telescopic rod. The front housing 6 and the left fixed sleeve 7 are placed inside the pipeline via the external telescopic rod. The buffer sleeve 4 and the buffer frame 2 buffer and dampen the rear housing 5 and the front housing 6, preventing damage to the motor 25, camera 20, low beam headlight 22, and laser rangefinder 23 from vibration. The sealing strip 11 creates a sealed cavity between the rear housing 5 and the front housing 6, preventing liquid from entering and damaging the motor 25, camera 20, high beam headlight 21, low beam headlight 22, and laser rangefinder 23. The camera 20 can be opened manually using an external handheld tablet or the main unit via the wireless transmission module 24. The video signal captured inside the pipe is transmitted to an external handheld tablet or host via the wireless transmission module 24. When visibility inside the pipe is low, the operator uses the external handheld tablet or host to control the high beam 21 or low beam 22 via the wireless transmission module 24 to illuminate the inside of the pipe, allowing the camera 20 to clearly capture the situation inside. When it is necessary to measure the width of cracks or the size of blockages inside the pipe, the operator uses the external handheld tablet or host to control the laser rangefinder 23 via the wireless transmission module 24 to measure the width of cracks or the size of blockages inside the pipe. The data signal detected by the laser rangefinder 23 is then wirelessly transmitted. Module 24 sends data to an external handheld tablet or host, allowing staff to assess the internal conditions of the pipeline. When the position of the camera 20 needs adjustment, the manual handheld tablet or host uses the wireless transmission module 24 to control the motor 25 to open. Supported by the rear housing 5, the motor 25 drives the drive gear 26 to rotate. With the meshing of the drive gear 26 and driven gear 27, the drive gear 26 drives the driven gear 27 to rotate, which in turn drives the left drive shaft 9 to rotate. The left drive shaft 9 then drives the rear housing 5 to rotate. Supported by the buffer frame 2 on the left fixed sleeve 7, the left fixed sleeve 7 provides movable support for the left drive shaft 9. The buffer frame 2 also supports the right fixed sleeve 8... With the support of the right fixed sleeve 8, the right drive shaft 10 is movably supported, and the right drive shaft 10 is movably supported, which facilitates the rear housing 5 to drive the front housing 6, camera 20, high beam 21, low beam 22, and laser rangefinder 23 to rotate. This facilitates the camera 20 to easily photograph and capture the inside of the pipeline. The battery body 13 provides power to the camera 20, high beam 21, low beam 22, laser rangefinder 23, and power motor 25, enabling convenient inspection of the pipeline by the QV periscope. This facilitates the easy photographing and capture of the situation inside the pipeline by the QV periscope, and allows for tilting adjustment of the QV periscope's position for detecting the inside of the pipeline, thus increasing the range of the QV periscope's inspection of the inside of the pipeline.

[0020] In this embodiment, the battery body 13 is first manually placed inside the battery fixing member 12 on one side of the battery mounting shell 28. The positioning spring 14 elastically drives the metal spring 15 to move, facilitating the adjustment of the internal space of the battery mounting shell 28. Simultaneously, this ensures tight contact between the input positive and negative terminals 16 on the surface of the metal spring 15 and the output positive and negative terminals 17 on the surface of the battery body 13, improving the connection between the battery body 13 and the battery fixing member 12 and reducing the likelihood of power outages. After the battery body 13 is installed, it is manually pressed down using the battery cover 18. This, combined with the sealing ring 19, creates a sealed cavity inside the battery mounting shell 28, preventing liquid from entering and causing damage to the battery body 13. To prevent damage to battery 13, the battery housing 28 is used to enclose the battery body 13, providing better protection for both the battery body 13 and the device body. The housing 3 is connected to an external telescopic rod, which places the front housing 6 and left fixed sleeve 7 inside the pipe. The buffer sleeve 4 and buffer frame 2 cushion and dampen the rear housing 5 and front housing 6, preventing damage to the motor 25, camera 20, low beam headlight 22, and laser rangefinder 23 from vibration. The sealing strip 11 creates a sealed cavity between the rear housing 5 and front housing 6, preventing liquid from entering and damaging the motor 25, camera 20, high beam headlight 21, low beam headlight 22, and laser rangefinder 23. The device is manually controlled via an external handheld tablet or main unit using the wireless transmission module 24. Camera 20 is turned on to facilitate the transmission of video signals captured inside the pipe via wireless transmission module 24 to an external handheld tablet or host. When visibility inside the pipe is low, the operator can use the external handheld tablet or host to control the high beam 21 or low beam 22 via wireless transmission module 24 to illuminate the inside of the pipe, allowing camera 20 to clearly capture the situation inside. When it is necessary to measure the width of cracks or the size of blockages inside the pipe, the operator can use the external handheld tablet or host to control the laser rangefinder 23 via wireless transmission module 24 to measure the width of cracks or the size of blockages inside the pipe. The data signal detected by the laser rangefinder 23 is then transmitted... The data is transmitted wirelessly to an external handheld tablet or host computer via the wireless transmission module 24, allowing staff to assess the internal conditions of the pipeline. When the camera 20 needs to be adjusted, the external handheld tablet or host computer uses the wireless transmission module 24 to control the motor 25 to open. The motor 25 drives the drive gear 26 to rotate, which in turn drives the driven gear 27. The driven gear 27 then drives the left drive shaft 9, which in turn drives the rear housing 5. The right drive shaft 10 provides support for the rear housing 5, facilitating the rotation of the front housing 6, camera 20, high beam 21, low beam 22, and laser rangefinder 23. This allows the camera 20 to easily capture images of the pipeline's interior.The battery unit 13 supplies power to the camera 20, high beam 21, low beam 22, laser rangefinder 23, and motor 25, thus enabling the battery placement structure to function properly.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A battery placement structure for a QV periscope, characterized in that: Includes a mounting bracket (1) and a buffer bracket (2). The buffer bracket (2) is mounted on the top outer wall of the mounting bracket (1) and extends to the outside of the mounting bracket (1). A mounting sleeve (3) is mounted on the top of the mounting bracket (1). A buffer sleeve (4) is fitted on the surface of the buffer bracket (2). A rear housing (5) is provided on the outside of the mounting bracket (1) on one side of the buffer bracket (2). A front housing (6) is mounted on the outer wall of the rear housing (5). A left fixing sleeve (7) is fitted on the surface of the buffer bracket (2) above the buffer sleeve (4). 7) A right fixing sleeve (8) is fitted on the surface of the buffer frame (2) on one side. A left drive shaft (9) is movably installed inside the left fixing sleeve (7), and the left drive shaft (9) extends into the interior of the rear housing (5) and is connected to the rear housing (5). A right drive shaft (10) is movably installed inside the right fixing sleeve (8), and the right drive shaft (10) extends into the interior of the rear housing (5) and is connected to the rear housing (5). A sealing strip (11) is installed on the outer wall of the rear housing (5) on one side of the right drive shaft (10). A battery mounting shell (28) is installed on the outer wall of the rear housing (5) away from the front housing (6). A battery fixing member (12) is installed inside the battery mounting shell (28). A battery body (13) is slidably installed inside the battery fixing member (12), and the battery body (13) extends to the outside of the battery fixing member (12). A positioning spring (14) is installed inside the battery fixing member (12) on one side of the battery body (13). A metal spring (15) is provided inside the battery fixing member (12) on one side of the positioning spring (14). One end of the positioning spring (14) is connected to the battery fixing part (12), and the other end of the positioning spring (14) is connected to the metal spring (15). The metal spring (15) has input positive and negative terminals (16) installed on its outer wall. The battery body (13) has output positive and negative terminals (17) installed on its outer wall. A battery cover (18) slides on the outer wall of the battery mounting shell (28) on one side of the battery body (13). A sealing ring (19) is fitted on the surface of the battery cover (18), and the sealing ring (19) is slidably connected to the battery mounting shell (28).

2. The QV periscope battery placement structure according to claim 1, characterized in that: A camera (20) is installed inside the rear housing (5) on one side of the sealing strip (11), and the camera (20) extends into the interior of the front housing (6).

3. The QV periscope battery placement structure according to claim 2, characterized in that: The camera (20) is symmetrically equipped with high beam lights (21) at its top, and the high beam lights (21) extend into the interior of the front housing (6).

4. The QV periscope battery placement structure according to claim 2, characterized in that: The camera (20) has three sets of low beam lamps (22) installed on its outer wall at equal intervals, and the low beam lamps (22) extend into the interior of the front housing (6).

5. The QV periscope battery placement structure according to claim 2, characterized in that: A laser rangefinder (23) is installed inside the rear housing (5) below the camera (20), and the laser rangefinder (23) extends into the interior of the front housing (6).

6. The QV periscope battery placement structure according to claim 1, characterized in that: A wireless transmission module (24) is installed on the outer wall of the rear housing (5) above the battery mounting housing (28).

7. The QV periscope battery placement structure according to claim 1, characterized in that: The left drive shaft (9) has a driven gear (27) mounted on the surface near the rear housing (5), and a power motor (25) is installed inside the rear housing (5) above the driven gear (27).

8. The QV periscope battery placement structure according to claim 7, characterized in that: The output end of the power motor (25) is equipped with a drive gear (26), and the drive gear (26) meshes with the driven gear (27).

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