Special oil taking tool for substation equipment

By designing the limiting mechanism and connection mechanism in the special oil extraction tool for substation equipment, the problem of unstable use of the device and inconvenient rotation of the rotating rod is solved, and the stable use and convenient operation of the device is achieved.

CN119804034AInactive Publication Date: 2025-04-11AKSU POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER
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Patent Information

Application Number
CN202510060100.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-04-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing oil extraction tools for special oil extraction tools for substation equipment lack a limiting mechanism, which leads to unstable use of the device and the rotating lever being inconvenient to rotate, affecting the convenience of use.

Method used

An oil extraction tool including a housing, a connecting tube, a support seat, a rotating rod and a limiting mechanism is designed. The limiting mechanism realizes the limit of the device through the cooperation of the suction cup and the screw; the connecting mechanism realizes the convenient rotation of the rotating rod through the cooperation of the slide chute, slider and pull block.

Benefits of technology

Through the design of the limiting mechanism, the device is used stably, avoiding the unstable problem caused by the infinite position; through the design of the connecting mechanism, the rotating lever is easy to rotate, improving the convenience of the device.

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Abstract

The invention discloses a transformer substation equipment special oil extraction tool which comprises a shell, a connecting pipe is arranged in the shell, a supporting seat is arranged in the shell, a first sealing ring is arranged on the outer side of the supporting seat and makes contact with the shell, a rotating rod is arranged in the supporting seat, and a second sealing ring is arranged on the outer side of the rotating rod. A threaded block is fixedly connected to the lower end of the rotating rod, a threaded groove is formed in the shell, the threaded block is connected to the interior of the threaded groove through threads, a connecting block is fixedly connected to the lower end of the threaded block, and a second sealing ring is fixedly connected to the outer side of the threaded block. The invention relates to an oil taking tool special for substation equipment. The oil taking tool has the advantages of being stable in use and convenient to use.
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Description

Technical Field

[0001] The invention belongs to the technical field of oil extraction tools, and in particular relates to a special oil extraction tool for transformer substation equipment. Background Art

[0002] The oil extraction tool for substation equipment can extract the oil in the substation equipment. These tools usually have the characteristics of corrosion resistance, wear resistance and high temperature resistance to ensure that they can be used for a long time in harsh working environments. For example, the invention patent application with the authorization announcement number CN103376215B discloses a sampling tool for substation oil filling equipment, the front end of the sampling tool is a hollow cylindrical structure, the rear end is an L-shaped guide tube, the cross section of the guide tube is circular, wherein the upper inlet of the L-shaped guide tube is connected to the rear end bottom of the hollow cylindrical structure, the lower outlet of the L-shaped guide tube is connected to the sampling bottle, the hollow cylindrical structure includes an adsorption area at the front end and a buffer zone at the rear end, wherein the port of the adsorption area is an oil drain valve interface, the oil drain valve interface is set to an oblique structure from the upper left to the lower right, and a circle of magnets is evenly arranged around the oil drain valve interface; an opening is set at the upper part of the buffer zone near the oil drain valve interface, and the upper part of the opening is covered with an observation window; the L-shaped guide tube includes an upper vertical tube and a lower horizontal tube, wherein the end of the horizontal tube is a sampling bottle interface for connecting the sampling bottle. In the prior art, before the device is used, the device has no limiting mechanism, and the device is inconvenient to be limited, resulting in instability in the use of the device. Moreover, when the device is used, the rotating rod is inside the device, which makes it difficult to rotate the rotating rod on the device, making the device inconvenient to use. Therefore, it is necessary to improve the prior art. Summary of the invention

[0003] The purpose of the present invention is to provide a special oil extraction tool for substation equipment in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0004] In order to solve the above problems, the present invention provides a technical solution:

[0005] A special oil extraction tool for substation equipment comprises a shell, a connecting pipe is arranged inside the shell, a support seat is arranged inside the shell, a first sealing ring is arranged on the outer side of the support seat, the first sealing ring contacts with the shell, a rotating rod is arranged inside the support seat, the lower end of the rotating rod is fixedly connected with a threaded block, a threaded groove is opened inside the shell, a threaded block is connected inside the threaded groove through a thread, the lower end of the threaded block is fixedly connected with the connecting block, the outer side of the threaded block is fixedly connected with a second sealing ring, the second sealing ring contacts with the shell, a first spring is arranged on the outer side of the rotating rod, one end of the first spring is fixedly connected with the support seat, the other end of the first spring is fixedly connected with the threaded block, the upper end of the rotating rod is fixedly connected with the fixing block, a connecting mechanism is arranged on the outer side of the fixing block, and a limiting mechanism is arranged on the outer side of the shell.

[0006] The top end of the sliding plate is fixedly connected to the sliding plate, and the upper end of the sliding plate is fixedly connected to the sliding plate. The upper end of the sliding plate is fixedly connected to the pulling block, and the upper end of the sliding block is fixedly connected to the pulling block. The upper end of the connecting seat is slidably connected to the sliding block. The sliding plate is slidably connected to the inside of the sliding plate, and a guide rod is provided on the outside of the guide rod. The guide rod is fixedly connected to the connecting seat. A slot is provided in the sliding plate, and the upper end of the connecting seat is fixedly connected to a connecting rod, and the upper end of the connecting rod is fixedly connected to the connecting plate. The upper end of the connecting plate is fixedly connected to a rotating ring, and the sliding block is slidably connected to the connecting seat. By pulling the slider to move to the specified position, then moving the connecting seat and the slider and other components to the specified position on the fixed block, and then moving the slider to the specified position in the slide groove, the connecting seat and other components are limited, and then the connecting rod and other components are rotated. The rotation of the connecting rod drives the rotating rod and other components to rotate, so that the rotating rod on the device is easy to rotate, making the device easy to use.

[0007] Preferably, one end of the second spring is fixedly connected to a sliding plate, and the other end of the second spring is fixedly connected to a connecting seat. By designing the second spring, the sliding plate has an elastic effect.

[0008] Preferably, an elastic card block is clamped inside the clamping slot, and the elastic card block is fixedly connected to the guide rod. By designing the elastic card block, the sliding plate can be limited.

[0009] Preferably, a telescopic sleeve is fixedly connected to the interior of the connecting seat, and a sliding plate is arranged inside the telescopic sleeve. The design of the telescopic sleeve can prevent dust from entering the connecting seat.

[0010] Preferably, the limiting mechanism comprises a fixing plate, the outer side of the shell is fixedly connected to a fixing plate, the interior of the fixing plate is fixedly connected to a cylinder, the outer side of the cylinder is fixedly connected to a suction cup, the interior of the cylinder is connected to a screw by a thread, the interior of the cylinder is provided with an air outlet, the interior of the air outlet is fixedly connected to a filter screen, the outer side of the screw is rotatably connected to an annular sleeve, the interior of the screw is provided with an annular groove, the interior of the annular groove is slidably connected to an insertion rod, the interior of the annular sleeve contacts with the insertion rod, the outer side of the insertion rod is fixedly connected to the fixing sleeve, the fixing sleeve contacts with the annular sleeve, the interior of the fixing sleeve is provided with a groove, the interior of the groove is slidably connected to a card block, the interior of the card block is slidably connected to a guide rod, an elastic sponge is provided on the outer side of the guide rod, the guide rod is fixedly connected to the annular sleeve, the annular sleeve is slidably connected to the card block, the lower end of the annular sleeve is fixedly connected to a piston, and the piston is slidably connected to the cylinder. After the device moves to the specified position, the piston moves upward. The piston moves upward to discharge the gas in the suction cup from the outlet, thereby causing the suction cup to generate negative pressure, which in turn causes the suction cup to adhere to the outside of the substation equipment, thereby limiting the device and making the device stable to use.

[0011] Preferably, the upper end of the screw is fixedly connected with a rotating block, and the upper end of the rotating block is fixedly connected with a handle. By designing the handle, the screw and other components can be driven to rotate.

[0012] Preferably, one end of the elastic sponge is fixedly connected to a clamping block, and the other end of the elastic sponge is fixedly connected to an annular sleeve. The elastic sponge is designed so that the clamping block has an elastic effect.

[0013] The beneficial effects of the present invention are as follows: the present invention relates to a special oil extraction tool for substation equipment, which has the characteristics of stable use and easy use of the device. In specific use, compared with the prior art, it has the following two beneficial effects:

[0014] Firstly, by designing components such as a fixed plate, a cylinder, a suction cup, a screw, a rotating block and a handle, after the device moves to a specified position, the piston moves upward, and the piston moves upward to discharge the gas in the suction cup from the air outlet, thereby causing the suction cup to generate negative pressure, and then the suction cup sucks the outside of the substation equipment, thereby limiting the device and making the device stable to use.

[0015] Secondly, by designing components such as slide grooves, sliders, connecting seats, sliding plates, sliding blocks and pull blocks, the slider is pulled to the specified position, and then the connecting seat and the slider and other components are moved to the specified position on the fixed block, and then the slider is moved to the specified position in the slide groove, so that the connecting seat and other components are limited, and then the connecting rod and other components are rotated. The rotation of the connecting rod drives the rotating rod and other components to rotate, so that the rotating rod on the device is easy to rotate, making the device easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A partial structural cutaway stereogram;

[0019] Figure 3 For the present invention Figure 1 A front cross-sectional view of

[0020] Figure 4 For the present invention Figure 3 A magnified view of;

[0021] Figure 5 For the present invention Figure 3 An enlarged view of the connection seat;

[0022] Figure 6 For the present invention Figure 5 The enlarged view of point B;

[0023] Figure 7 For the present invention Figure 2 Magnified view of the cylinder;

[0024] Figure 8 For the present invention Figure 7 Enlarged view of point C.

[0025] In the figure: 1, housing; 2, connecting pipe; 3, supporting seat; 4, first sealing ring; 5, rotating rod; 6, thread block; 7, thread groove; 8, second sealing ring; 9, connecting block; 10, first spring; 11, fixing block; 12, connecting mechanism; 121, sliding groove; 122, sliding block; 123, connecting seat; 124, sliding plate; 125, sliding block; 126, pulling block; 127, guide rod; 128, second spring; 129, card slot; 1210, elastic card block; 1211, telescopic sleeve; 1 212, connecting rod; 1213, connecting plate; 1214, rotating ring; 13, limiting mechanism; 131, fixing plate; 132, cylinder; 133, suction cup; 134, screw; 135, rotating block; 136, handle; 137, air outlet; 138, filter; 139, annular sleeve; 1310, annular groove; 1311, insertion rod; 1312, fixing sleeve; 1313, groove; 1314, block; 1315, guide rod; 1316, elastic sponge; 1317, piston. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 8As shown, this specific implementation adopts the following technical solutions:

[0027] Example:

[0028] A special oil extraction tool for substation equipment comprises a shell 1, a connecting pipe 2 is arranged inside the shell 1, a support seat 3 is arranged inside the shell 1, a first sealing ring 4 is arranged on the outer side of the support seat 3, the first sealing ring 4 is in contact with the shell 1, a rotating rod 5 is arranged inside the support seat 3, a threaded block 6 is fixedly connected to the lower end of the rotating rod 5, a thread groove 7 is opened inside the shell 1, a threaded block 6 is connected to the inside of the thread groove 7 by threading, a connecting block 9 is fixedly connected to the lower end of the threaded block 6, a second sealing ring 8 is fixedly connected to the outer side of the threaded block 6, the second sealing ring 8 is in contact with the shell 1, a first spring 10 is arranged on the outer side of the rotating rod 5, one end of the first spring 10 is fixedly connected to the support seat 3, the other end of the first spring 10 is fixedly connected to the threaded block 6, the upper end of the rotating rod 5 is fixedly connected to the fixed block 11, a connecting mechanism 12 is arranged on the outer side of the fixed block 11, and a limiting mechanism 13 is arranged on the outer side of the shell 1.

[0029] The connecting mechanism 12 includes a slide groove 121, the interior of the fixed block 11 is provided with a slide groove 121, the interior of the slide groove 121 is slidably connected with a slider 122, the end of the slider 122 away from the slide groove 121 is fixedly connected with a sliding plate 124, the outer side of the fixed block 11 contacts with a connecting seat 123, the interior of the connecting seat 123 is slidably connected with a sliding plate 124, the upper end of the sliding plate 124 is fixedly connected with a sliding block 125, the upper end of the sliding block 125 is fixedly connected with a pull block 126, the upper end of the connecting seat 123 is fixedly connected with a pull block 126, and the upper end of the connecting seat 123 is fixedly connected with a pull block 126. The sliding plate 124 is slidably connected to a sliding block 125, the interior of the sliding plate 124 is slidably connected to a guide rod 127, a second spring 128 is arranged on the outside of the guide rod 127, one end of the second spring 128 is fixedly connected to the sliding plate 124, the other end of the second spring 128 is fixedly connected to the connecting seat 123, the second spring 128 is designed so that the sliding plate 124 has an elastic force, the guide rod 127 is fixedly connected to the connecting seat 123, a card slot 129 is provided inside the sliding plate 124, and an elastic card slot 129 is clamped inside the card slot The elastic block 1210 is fixedly connected to the guide rod 127. By designing the elastic block 1210, the sliding plate 124 can be limited. The interior of the connecting seat 123 is fixedly connected with a telescopic sleeve 1211. The interior of the telescopic sleeve 1211 is provided with a sliding plate 124. By designing the telescopic sleeve 1211, dust can be prevented from entering the connecting seat 123. The upper end of the connecting seat 123 is fixedly connected with a connecting rod 1212. The upper end of the connecting rod 1212 is fixedly connected with a connecting plate 1213. The upper end of the connecting plate 1213 is fixedly connected with a connecting rod 1212. The end is fixedly connected with a rotating ring 1214, and the slider 122 is slidably connected with the connecting seat 123. By pulling the slider 122 to move to the specified position, and then moving the connecting seat 123 and the slider 122 and other components to the specified position on the fixed block 11, and then moving the slider 122 to the specified position in the slide groove 121, so that the connecting seat 123 and other components are limited, and then the connecting rod 1212 and other components are rotated. The rotation of the connecting rod 1212 drives the rotating rod 5 and other components to rotate, so that the rotating rod 5 on the device is easy to rotate, making the device easy to use.

[0030] The limiting mechanism 13 includes a fixing plate 131, the outer side of the shell 1 is fixedly connected with the fixing plate 131, the inner side of the fixing plate 131 is fixedly connected with a cylinder 132, the outer side of the cylinder 132 is fixedly connected with a suction cup 133, the inner side of the cylinder 132 is connected with a screw 134 through a thread, the upper end of the screw 134 is fixedly connected with a rotating block 135, the upper end of the rotating block 135 is fixedly connected with a handle 136, and the handle 136 can be designed to drive the screw 134 and other components to rotate, and the cylinder An air outlet 137 is provided inside the screw 132, a filter screen 138 is fixedly connected inside the air outlet 137, an annular sleeve 139 is rotatably connected to the outer side of the screw 134, an annular groove 1310 is provided inside the screw 134, an insertion rod 1311 is slidably connected inside the annular groove 1310, the annular sleeve 139 contacts the insertion rod 1311, a fixing sleeve 1312 is fixedly connected to the outer side of the insertion rod 1311, the fixing sleeve 1312 contacts the annular sleeve 139, and the fixing sleeve 1312 contacts the annular sleeve 139. 2 is provided with a groove 1313, the groove 1313 is slidably connected with a block 1314, the block 1314 is slidably connected with a guide rod 1315, an elastic sponge 1316 is provided on the outside of the guide rod 1315, one end of the elastic sponge 1316 is fixedly connected with the block 1314, and the other end of the elastic sponge 1316 is fixedly connected with an annular sleeve 139. By designing the elastic sponge 1316, the block 1314 has an elastic effect, and the guide rod 1315 and the annular sleeve 139 are fixedly connected. 39 is fixedly connected, the annular sleeve 139 is slidably connected to the block 1314, the lower end of the annular sleeve 139 is fixedly connected with a piston 1317, the piston 1317 is slidably connected to the cylinder 132, after the device moves to the specified position, the piston 1317 is moved upward, and the piston 1317 moves upward to discharge the gas in the suction cup 133 from the air outlet 137, thereby causing the suction cup 133 to generate negative pressure, thereby causing the suction cup 133 to absorb the outside of the substation equipment, thereby limiting the device and making the device stable in use.

[0031] The use state of the present invention is as follows: the device is applicable to devices of different sizes and specifications, and the first sealing ring 4 and the second sealing ring 8 of the device are used to seal the gap to prevent the insulating oil of the equipment from leaking therefrom. The device can control the oil intake and reduce the leakage of the insulating oil. It is light and convenient, easy to carry, and does not have a complex structure.

[0032] When the device needs to be limited, the shell 1 is inserted into the designated position in the substation equipment, so that the suction cup 133 contacts the outside of the substation equipment, and then the handle 136 is opened. The handle 136 rotates to drive the rotating block 135 to rotate, and the rotating block 135 rotates to drive the screw 134 to rotate. The screw 134 rotates and makes a threaded motion with the cylinder 132, so that the screw 134 is relatively displaced. The rotation of the screw 134 drives the insertion rod 1311 and the annular sleeve 139 and other components to move upward. The annular sleeve 139 moves upward to drive the piston 1317 to move upward. The piston 1317 moves upward to discharge the gas in the suction cup 133 from the gas outlet 137, so that the suction cup 133 generates negative pressure, so that the suction cup 133 sucks the outside of the substation equipment, so that the device is limited, and the device is stable in use.

[0033] When the device is in use, the pull block 126 is pulled to move in the direction away from the connecting rod 1212, the movement of the pull block 126 drives the sliding block 125 to move, the movement of the sliding block 125 drives the sliding plate 124 to move, the movement of the sliding plate 124 drives the card slot 129 and the slider 122 to move, the movement of the sliding plate 124 causes the telescopic sleeve 1211 to retract, when the sliding plate 124 moves, the second spring 128 is compressed, the card slot 129 moves and is misaligned with the elastic card block 1210, thereby causing the elastic card block 1210 to deform, the card slot 129 moves and separates from the elastic card block 1210, after the slider 122 moves to the specified position, the moving rotating ring 1214 moves toward the fixed block 11, the moving rotating ring 1214 drives the connecting plate 1213 to move, the connecting plate 1213 drives the connecting rod 1212 to move, the connecting rod 1212 drives the connecting seat 123 to move, and the connecting seat The movement of 123 drives the slider 122 and other components to move. After the connecting seat 123 moves to the specified position on the fixed block 11, the pull block 126 is released, and the elastic force of the second spring 128 pushes the sliding plate 124 to move. The sliding plate 124 moves and drives the slider 122 and the card slot 129 and other components to move. After the slider 122 moves into the slide slot 121, the card slot 129 is engaged with the elastic card block 1210, and then the rotating ring 1214 is rotated. The rotation of the rotating ring 1214 drives the connecting plate 1213 to rotate. The rotation of the connecting plate 1213 drives the connecting rod 1212 to rotate. The rotation of the connecting rod 1212 drives the connecting seat 123 to rotate. The rotation of the connecting seat 123 drives the slider 122 and other components to rotate. The rotation of the slider 122 drives the fixed block 11 to rotate. The rotation of the fixed block 11 drives the rotating rod 5 to rotate, thereby making the rotating rod 5 on the device easy to rotate, making the device easy to use.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A special oil extraction tool for substation equipment, comprising a housing (1), characterized in that: A connecting pipe (2) is arranged inside the shell (1), a support seat (3) is arranged inside the shell (1), a first sealing ring (4) is arranged on the outer side of the support seat (3), the first sealing ring (4) is in contact with the shell (1), a rotating rod (5) is arranged inside the support seat (3), a threaded block (6) is fixedly connected to the lower end of the rotating rod (5), a thread groove (7) is provided inside the shell (1), the threaded block (6) is connected to the inside of the thread groove (7) via a thread, and the lower end of the threaded block (6) is fixedly connected to the connecting block ( 9), a second sealing ring (8) is fixedly connected to the outer side of the threaded block (6), the second sealing ring (8) is in contact with the housing (1), a first spring (10) is arranged on the outer side of the rotating rod (5), one end of the first spring (10) is fixedly connected to the support seat (3), the other end of the first spring (10) is fixedly connected to the threaded block (6), the upper end of the rotating rod (5) is fixedly connected to a fixed block (11), a connecting mechanism (12) is arranged on the outer side of the fixed block (11), and a limiting mechanism (13) is arranged on the outer side of the housing (1).

2. A special oil extraction tool for substation equipment according to claim 1, characterized in that: The connecting mechanism (12) comprises a slide groove (121), the interior of the fixed block (11) is provided with a slide groove (121), the interior of the slide groove (121) is slidably connected to a slider (122), one end of the slider (122) away from the slide groove (121) is fixedly connected to a sliding plate (124), the outer side of the fixed block (11) contacts a connecting seat (123), the interior of the connecting seat (123) is slidably connected to a sliding plate (124), the upper end of the sliding plate (124) is fixedly connected to a sliding block (125), the upper end of the sliding block (125) is fixedly connected to a pulling block (126), and the upper end of the connecting seat (123) is fixedly connected to a pull block (126). A sliding block (125) is slidably connected, a guide rod (127) is slidably connected inside the sliding plate (124), a second spring (128) is arranged on the outside of the guide rod (127), the guide rod (127) is fixedly connected to the connecting seat (123), a slot (129) is provided inside the sliding plate (124), the upper end of the connecting seat (123) is fixedly connected to a connecting rod (1212), the upper end of the connecting rod (1212) is fixedly connected to a connecting plate (1213), the upper end of the connecting plate (1213) is fixedly connected to a rotating ring (1214), and the slider (122) is slidably connected to the connecting seat (123).

3. A special oil extraction tool for substation equipment according to claim 2, characterized in that: One end of the second spring (128) is fixedly connected to the sliding plate (124), and the other end of the second spring (128) is fixedly connected to the connecting seat (123).

4. The special oil extraction tool for substation equipment according to claim 2, characterized in that: An elastic clamping block (1210) is clamped inside the clamping slot (129), and the elastic clamping block (1210) is fixedly connected to the guide rod (127).

5. The oil extraction tool for substation equipment according to claim 2, characterized in that: A telescopic sleeve (1211) is fixedly connected to the interior of the connecting seat (123), and a sliding plate (124) is arranged inside the telescopic sleeve (1211).

6. The oil extraction tool for substation equipment according to claim 1, characterized in that: The limiting mechanism (13) comprises a fixing plate (131), the fixing plate (131) is fixedly connected to the outer side of the shell (1), the fixing plate (131) is fixedly connected to the inside of the fixing plate (131), the outer side of the cylinder (132) is fixedly connected to the suction cup (133), the inside of the cylinder (132) is threadedly connected to a screw rod (134), the inside of the cylinder (132) is provided with an air outlet (137), the inside of the air outlet (137) is fixedly connected to a filter screen (138), the outer side of the screw rod (134) is rotatably connected to an annular sleeve (139), the inside of the screw rod (134) is provided with an annular groove (1310), the inside of the annular groove (1310) is slidably connected to an insertion rod (1311), and the inside of the annular sleeve (139) is in contact with the inner side of the annular sleeve (139). A plug rod (1311) is provided, the outer side of the plug rod (1311) is fixedly connected to a fixed sleeve (1312), the fixed sleeve (1312) is in contact with an annular sleeve (139), a groove (1313) is provided inside the fixed sleeve (1312), a clamping block (1314) is slidably connected inside the groove (1313), a guide rod (1315) is slidably connected inside the clamping block (1314), an elastic sponge (1316) is provided on the outer side of the guide rod (1315), the guide rod (1315) is fixedly connected to the annular sleeve (139), the annular sleeve (139) is slidably connected to the clamping block (1314), a piston (1317) is fixedly connected to the lower end of the annular sleeve (139), and the piston (1317) is slidably connected to the cylinder (132).

7. The special oil extraction tool for substation equipment according to claim 6, characterized in that: The upper end of the screw rod (134) is fixedly connected to a rotating block (135), and the upper end of the rotating block (135) is fixedly connected to a handle (136).

8. The special oil extraction tool for substation equipment according to claim 6, characterized in that: One end of the elastic sponge (1316) is fixedly connected to a clamping block (1314), and the other end of the elastic sponge (1316) is fixedly connected to an annular sleeve (139).

Citation Information

Patent Citations

  • A sampling tool for oil filling equipment in a substation

    CN103376215B