Visual fastener assembling and disassembling tool for narrow space

Abstract

The utility model relates to a visual fastener assembling and disassembling tool for a narrow space, which comprises a fixing part and a display device which are connected through a bent rod, an image acquisition module is arranged in the fixing part, and an acquired image is transmitted to the display device through a cable; the fixing part comprises a sleeve and a torque sensor, one end of the sleeve is provided with a first magnet, the other end of the sleeve is detachably connected with the torque sensor, an image acquisition module is arranged on a support connected with the torque sensor, and cables of the torque sensor and the image acquisition module penetrate through the bent rod to be connected with the display device. The part for fixing the fastener is stretched into a narrow space through the bent rod, an image of the fastener during mounting and dismounting is obtained and transmitted to the display device, the fixing part attracts the fastener through the magnet to avoid falling, the torque is obtained through the torque sensor during fastening, the problem that the sight line is blocked can be solved, and the display effect is improved. And the work efficiency during fastener loading and unloading is improved, and the situation that the fasteners accidentally fall into equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of substation operation and maintenance, in particular to a visual fastener loading and unloading tool for a narrow space. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] During maintenance work in narrow spaces such as power distribution cabinets, it is necessary to install and remove fasteners in narrow gaps. The narrow space makes it difficult to reach the sight and inconvenient to operate, making it difficult to complete the removal or installation work smoothly. At the same time, narrow spaces are often located inside equipment such as power distribution cabinets, and fasteners are easy to fall into the gaps of equipment, causing safety accidents. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a fastener visualization loading and unloading tool for a narrow space, which uses an L-shaped bent rod to insert the part that fixes the fastener into the narrow space, obtains images during the installation and removal of the fastener and transmits them to a display device, and the fixing part uses a magnet to temporarily clamp the fastener, and uses a torque sensor to obtain torque during the initial tightening, and transmits it to the display device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The first aspect of the utility model provides a fastener visual loading and unloading tool for a narrow space, comprising a fixing part and a display device connected by a bent rod, an image acquisition module is provided inside the fixing part, and the acquired image is transmitted to the display device via a cable;

[0007] The fixing part includes a sleeve and a torque sensor. A first magnet is provided at one end of the sleeve, and the other end is detachably connected to the torque sensor. An image acquisition module is provided on the bracket connected to the torque sensor. The cables of the torque sensor and the image acquisition module are both connected to the display device through the bent rod.

[0008] Furthermore, the bent rod is fixedly connected to the display device via an adapter, and a positioning plate is provided on the bent rod.

[0009] Furthermore, the bent rod is L-shaped, including an L-shaped core shaft and an insulating layer coaxially arranged on the outside.

[0010] Furthermore, the bracket includes a first bracket for fixing the torque sensor and a second bracket for fixing the image acquisition module, the two brackets are sleeved, and the second bracket is connected to the core shaft of the bending rod through the first bracket.

[0011] Furthermore, a nut placement position is provided at one end of the sleeve away from the torque sensor for accommodating a nut.

[0012] Furthermore, the first magnet is connected to the outer side of the circumference of the nut placement position for adsorbing the nut; the pressure cover is connected to the end of the sleeve for protecting the first magnet; and a protective cover is provided in the sleeve for protecting the image acquisition module.

[0013] Furthermore, outer surfaces of the first bracket, the second bracket and the torque sensor are covered with a first insulating layer.

[0014] Furthermore, outer surfaces of the sleeve, the first magnet and the gland are covered with a second insulating layer.

[0015] Furthermore, the detachable connection includes a bayonet pin arranged on the torque sensor, an elastic layer wrapped around the outer side of the bayonet pin, a hole corresponding to the position of the bayonet pin is provided on the end face of the sleeve, the sleeve is pushed onto the bayonet pin for installation, and the bayonet pin is fixed by interference fit with the corresponding hole on the sleeve, and the elastic layer is compressed when fixed; the sleeve is pulled to disengage the bayonet pin from the hole in the sleeve for disassembly.

[0016] Furthermore, it also has a screwdriver bit, the surface of which is covered with an insulating layer, one end of which has an interface for connecting to an electric, pneumatic, hydraulic or hand-held tool to transmit the power required to tighten the screw, and the other end is a tightening head, on which a second magnet is provided for adsorbing the screw.

[0017] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0018] 1. Use a bent rod to probe the part that fixes the fastener into a narrow space, obtain images during the installation and removal of the fastener and transmit them to the display device. The fixing part uses a magnet to absorb the fastener to prevent it from falling, and uses a torque sensor to obtain the torque during fastening and transmit it to the display device. This can improve the problem of obstructed vision during operation, improve work efficiency during fastener loading and unloading, and reduce the situation where fasteners accidentally fall into the equipment.

[0019] 2. The detachable connection structure between the sleeve and the torque sensor enables the sleeves of different sizes to be quickly replaced during on-site operations to cope with the disassembly and tightening of nuts of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 It is a schematic diagram of the structure of the fixing tool provided by the utility model;

[0022] Figure 2 It is a structural schematic diagram of the fixing part of the fixing tool provided by the utility model;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing part of the fixing tool provided by the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of a screwdriver bit that matches the fixing tool provided by the utility model.

[0025] Figure 1 Middle: 1 fixed part; 2 bending rod; 3 positioning plate; 4 adapter; 5 display device;

[0026] Figure 2-Figure 3 Middle: 101 first insulating layer; 102 gland; 103 first magnet; 104 sleeve; 105 shield; 106 torque sensor; 107 first bracket; 108 second bracket; 109 camera; 110 second insulating layer; 111 latch; 112 nut placement position; 201 rubber layer; 202 spindle;

[0027] Figure 4 Middle: 601 interface; 602 second magnet. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] As introduced in the background technology, when installing and removing fasteners in a small space, it is easy to be affected by the space, resulting in difficult sight and difficult operation. In addition, the small space is often located inside the equipment, and the fasteners are easy to fall into the equipment during operation, causing safety hazards.

[0032] Therefore, the following embodiment provides a fastener visualization loading and unloading tool for a narrow space, which uses an L-shaped bent rod to insert the part that fixes the fastener into the narrow space, obtains images during the installation and removal of the fastener and transmits them to a display device, and the fixing part uses a magnet to temporarily clamp the fastener, and uses a torque sensor to obtain torque during the initial tightening, and transmits it to the display device.

[0033] like Figure 1 As shown, a fastener visual loading and unloading tool for a narrow space includes a fixing part 1 and a display device 5 connected by a bending rod 2. An image acquisition module is provided inside the fixing part 1 to transmit the acquired image to the display device 5 via a cable.

[0034] The bending rod 2 and the display device 5 are fixedly connected via an adapter 4. The adapter 4 is made of insulating material to meet the insulation requirements of the power industry.

[0035] A positioning plate 3 is provided on the bending rod 2. During operation, the positioning plate 3 can be inserted into the corresponding groove according to the actual conditions of the working space, so as to avoid the reaction force of the tightening torque being directly transmitted to the hands of the staff.

[0036] The bent rod 2 is L-shaped, including an L-shaped core shaft 202 and an insulating layer coaxially arranged on the outside. The insulating layer of this embodiment is selected as an insulating rubber coating layer 201 to meet the insulation requirements of the power industry.

[0037] The display device 5 has components such as operating buttons, a display screen, a handle, and a battery, and is used to display the fastener image acquired by the image acquisition module in the fixing part 1 and the torque value transmitted by the torque sensor during tightening.

[0038] like Figure 2-Figure 3 As shown, the fixing part 1 includes a sleeve 104 and a torque sensor 106. A first magnet 103 is provided at one end of the sleeve 104, and the other end is detachably connected to the torque sensor 106. An image acquisition module is provided on the bracket connected to the torque sensor 106.

[0039] A nut placement position 112 is provided at one end of the sleeve 104 away from the torque sensor 106, which is used to accommodate the nut and fix the nut, and any one of 24-angle, 18-angle, 12-angle or 6-angle is adopted; the first magnet 103 is connected to the outer side of the circumference of the nut placement position 112 to provide magnetic force for magnetic adsorption of the nut to prevent it from falling into the equipment; the pressure cover 102 is connected to the end of the sleeve 104 to protect the magnet; the outer surfaces of the sleeve 104, the first magnet 103 and the pressure cover 102 are covered with a second insulating layer 110, and the second insulating layer is preferably made of rubber coating or insulating plastic to meet the insulation requirements of the power industry; a protective cover 105 is provided in the sleeve 104 to protect the image acquisition module, prevent the excessively long bolt part from touching the image acquisition module and causing damage, and prevent foreign matter and dust from falling on the lens of the image acquisition module; the protective cover is preferably made of transparent acrylic.

[0040] The bracket includes a first bracket 107 for fixing the torque sensor 106 and a second bracket 108 for fixing the image acquisition module. The two brackets are sleeved, and the second bracket 108 is connected to the core shaft 202 of the bending rod 2 through the first bracket 107.

[0041] The image acquisition module can be a camera 109 , which is encapsulated in the second bracket 108 with fixing glue; one end of the torque sensor 106 is fixedly connected to the first bracket 107 , and the other end is detachably connected to the sleeve 104 through a bayonet 111 .

[0042] Regarding the detachable connection, this embodiment uses four bayonet pins 111 for connection, and the bayonet pins 111 are fixedly connected to the torque sensor 106 to form a whole; the outer side of the bayonet pin 111 is wrapped with an elastic layer (for example, wrapped with rubber) to form a whole; four holes corresponding to the position of the bayonet pin 111 are provided on the end face of the sleeve 104, and the sleeve is installed on the bayonet pin by pushing the sleeve 104, and fixed by the interference fit between the bayonet pin and the corresponding holes on the sleeve, and the elastic layer is compressed when fixed.

[0043] The outer surfaces of the first bracket 107, the second bracket 108 and the torque sensor 106 are covered with a first insulating layer 101; the first insulating layer is preferably made of rubber coating or insulating plastic to meet the insulation requirements of the power industry.

[0044] Through the first insulating layer 101, the second insulating layer 110, the rubber coating layer 201 on the bent rod 2, the adapter 4 and the display device 5, the entire tool forms an insulator that meets the insulation requirements of the power industry.

[0045] The control cables and communication cables of the camera and torque sensor pass through the gap of the sleeve part, enter the L-shaped mandrel, and finally connect electrically with the display device; the camera image and the torque change curve during the installation and removal of screws can be displayed in real time on the display screen, providing a reference for the staff to tighten the screws. The camera has a lighting function, which is suitable for working in dark environments.

[0046] When in use, the L-shaped structure of the bent rod 2 is inserted into a narrow space, and the nut is tightened using the sleeve 104. During this process, images are acquired through the image acquisition module (camera 109), and the torque curve is acquired through the torque sensor 106. The image and torque curve are transmitted to the real device through a cable to realize the nut tightening or disassembly operation.

[0047] The sleeve 104 can fasten nuts of different specifications. The sleeve 104 has multiple groups according to the specifications of the nuts. When used to fasten nuts of different specifications, the sleeve 104 and the second insulating layer 110 are removed from the bayonet and replaced with a sleeve of corresponding specifications. The different specifications and sizes here refer to the different sizes of the nut placement position 112 at one end of the sleeve 104, while the size of the end of the sleeve 104 that is detachably connected to the torque sensor 106 is fixed.

[0048] In this embodiment, the visual fixing tool has a matching bit, and the corresponding bit is replaced according to different specifications and models of fasteners to tighten the screws.

[0049] like Figure 4 As shown, the surface of the screwdriver bit is covered with an insulating layer, one end of which is an interface 601 for connecting to an electric, pneumatic, hydraulic or hand-held tool and transmitting the power required to tighten the screw, and the other end is a tightening head, on which a second magnet 602 is provided for adsorbing the screw to prevent it from falling into the device.

[0050] There is no restriction on the structure of the tightening head, and multiple bits can be equipped according to actual needs. When tightening a cross-shaped screw, the tightening head is in the shape of a cross rod; when tightening a hexagon socket screw, the tightening head is in the shape of an outer hexagon rod; when tightening a hexagon nut, the tightening head is in the shape of a hexagon socket.

[0051] Take fixing hexagonal nuts as an example to explain the workflow:

[0052] The staff member holds the handle part of the display device in the visual fixing tool with one hand, finds the corresponding nut position through the camera, and installs the nut into the socket to fix it; with the other hand, he operates the corresponding tool through the screw bit to perform screw removal operations.

[0053] When installing screws, the worker holds the power tool in one hand and uses the screwdriver bit to carry the screw into the corresponding hole; with the other hand, he holds the handle of the visual fixing tool display device and puts the nut into the sleeve in advance to fix it through magnetic adsorption, and uses the camera to find the corresponding bolt position. After aligning the bolt, he operates the power tool to perform the installation work.

[0054] When installing or removing nuts or screws of other specifications and shapes, just replace the corresponding bit and socket.

[0055] The above-mentioned tool uses an L-shaped bent rod to insert the part that fixes the fastener into a narrow space, obtains images during the installation and removal of the fastener and transmits them to a display device. The fixing part uses a magnet to temporarily clamp the fastener, and uses a torque sensor to obtain the torque during fastening and transmit it to the display device. This can improve the operating experience, improve the work efficiency during the loading and unloading of fasteners, and reduce the situation where fasteners accidentally fall into the equipment.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A visual fastener loading and unloading tool for use in a narrow space, characterized in that: It includes a fixing part and a display device connected by a bent rod, wherein an image acquisition module is arranged inside the fixing part to transmit the acquired image to the display device via a cable; The fixing part includes a sleeve and a torque sensor. A first magnet is provided at one end of the sleeve, and the other end is detachably connected to the torque sensor. An image acquisition module is provided on the bracket connected to the torque sensor. The cables of the torque sensor and the image acquisition module are both connected to the display device through the bent rod.

2. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: The bending rod is fixedly connected to the display device via an adapter, and a positioning plate is provided on the bending rod.

3. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: The bent rod is L-shaped, and comprises an L-shaped core shaft and an insulating layer coaxially arranged on the outside.

4. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: The bracket comprises a first bracket for fixing the torque sensor and a second bracket for fixing the image acquisition module, the two brackets are sleeved, and the second bracket is connected to the core shaft of the bending rod through the first bracket.

5. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 4, characterized in that: The outer surfaces of the first bracket, the second bracket and the torque sensor are covered with a first insulating layer.

6. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: A nut placement position is provided at one end of the sleeve away from the torque sensor for accommodating a nut.

7. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: The first magnet is connected to the outer side of the circumference of the nut placement position for adsorbing the nut; the pressure cover is connected to the end of the sleeve for protecting the first magnet; a protective cover is arranged in the sleeve for protecting the image acquisition module.

8. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 7, characterized in that: The outer surfaces of the sleeve, the first magnet and the gland are covered with a second insulating layer.

9. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: The detachable connection includes a bayonet pin arranged on the torque sensor, an elastic layer wrapped around the outer side of the bayonet pin, a hole corresponding to the position of the bayonet pin is provided on the end face of the sleeve, the sleeve is pushed onto the bayonet pin for installation, and is fixed by interference fit between the bayonet pin and the corresponding hole on the sleeve, and the elastic layer is compressed when fixed; the sleeve is pulled to disengage the bayonet pin from the hole in the sleeve for disassembly.

10. A fastener visual loading and unloading tool for use in a narrow space as claimed in claim 1, characterized in that: It also has a screwdriver bit, the surface of which is covered with an insulating layer, one end of which has an interface for connecting with an electric, pneumatic, hydraulic or hand-held tool to transmit the power required for tightening the screw, and the other end is a tightening head, on which a second magnet is provided for adsorbing the screw.

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