Auxiliary welding device for gas-insulated switchgear shell

Abstract

The utility model belongs to the technical field of gas-insulated switchgears, and particularly relates to a gas-insulated switchgear shell welding auxiliary device which comprises a welding auxiliary device body composed of a first positioning assembly and a second positioning assembly, the first positioning assembly comprises a first base, and a first locking block seat is fixedly arranged on one side of the first base; a first locking groove and a second locking groove are formed in the lock handle, a first locking block is fixedly arranged on one side of the first locking block seat, the first locking block comprises a first protruding part matched with the second locking groove for locking, the second positioning assembly comprises a second base, a second locking block seat is fixedly arranged on one side of the second base, and a second locking block is fixedly arranged on the second locking block seat. And the second lock block comprises a second convex part which is locked with the first lock groove in a matched manner and a pushing part which is used for pushing the lock handle to rotate to complete positioning and locking, so that relative displacement caused by welding operation is effectively avoided, the welding precision is improved, the reject ratio of the gas-insulated switchgear is greatly reduced, and the production efficiency and the economic benefit of an enterprise are improved.

Description

Technical Field

[0001] This utility model belongs to the field of gas-insulated cabinet technology, specifically a welding auxiliary device for gas-insulated cabinet shells. Background Technology

[0002] Gas-insulated switchgear is an indoor AC high-voltage gas-insulated metal-enclosed switchgear. The entire cabinet combines air insulation with sulfur hexafluoride gas compartments, making it both compact and expandable. It is suitable for power distribution automation. With the continuous standardization of the State Grid, the control of the distance between the two cabinets when expanding gas-insulated switchgear is becoming more and more stringent in order to effectively reduce various safety hazards.

[0003] Currently manufactured gas-insulated cabinets are made entirely according to standards, which theoretically allows for effective control of the expansion distance between two cabinets. However, during the welding process, issues such as welding techniques or external vibrations and forces often result in weld scars that affect the expansion distance between the two cabinets, ultimately leading to a consistently high failure rate and significant safety hazards. Therefore, an auxiliary device for welding the gas-insulated cabinet shell is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing gas-insulated switchgear and solve the problem that weld scars caused by welding techniques or external vibrations affect the expansion distance between the two switchgear bodies, resulting in a consistently high failure rate and significant safety hazards, an auxiliary welding device for gas-insulated switchgear shells is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The gas-insulating cabinet shell welding auxiliary device of this utility model includes a welding auxiliary device body composed of a first positioning component and a second positioning component. The first positioning component and the second positioning component are respectively assembled on one side of the side plate and the inner wall of the shell, and are arranged opposite to each other. The first positioning component includes a first base, a first locking block seat is fixedly provided on one side of the first base, a fixing plate is fixedly provided on one side of the first locking block seat, and a locking handle is rotatably provided on the fixing plate through a rotating rod. The locking handle has a first locking groove and a second locking groove. A first locking block is fixedly provided on one side of the first locking block seat. The first locking block includes a first protrusion that cooperates with the second locking groove for locking. The second positioning component includes a second base, a second locking block seat is fixedly provided on one side of the second base, a second locking block is fixedly provided on the second locking block seat, and the second locking block includes a second protrusion that cooperates with the first locking groove for locking, and a pushing part for pushing the locking handle to rotate to complete the positioning and locking.

[0006] Preferably, a first protruding strip is fixedly provided on the inner wall of the housing, and a second protruding strip is fixedly provided on the side plate. The first and second protruding strips are respectively provided with a first mounting groove and a second mounting groove for installing the second positioning component and the first positioning component. The number of the first mounting groove and the second mounting groove are the same and they are arranged in a one-to-one correspondence. A first fixing magnet and a second fixing magnet are respectively fixedly provided on one side of the first base and the second base, and the shape and size of the two magnets are adapted to the second mounting groove and the first mounting groove, respectively.

[0007] Preferably, a third magnet is fixedly provided on the first locking block.

[0008] Preferably, one end of the lock handle is a counterweight.

[0009] The beneficial effects of this utility model are:

[0010] This utility model provides an auxiliary device for welding the shell of a gas-insulated cabinet. Through the cooperation of the first positioning component and the second positioning component, the shell and side plate of the gas-insulated cabinet can be accurately positioned before welding. Even if there is external vibration or other external force interference during the welding process, it can ensure that the shell and side plate maintain a relatively stable positional relationship, effectively avoiding relative displacement caused by welding operations, thereby improving welding accuracy. It helps to control the formation position and size of subsequent weld spatters, preventing uneven or excessive weld spatter thickness deviations from causing changes in the cabinet spacing and adversely affecting the expansion spacing between the two cabinets. This ensures that the cabinet spacing meets the standard requirements, greatly reducing the defect rate of gas-insulated cabinets, making the gas-insulated cabinet production process more stable and reliable, reducing the number of products that need to be reworked or scrapped due to welding defects, and improving the production efficiency and economic benefits of enterprises. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a perspective view of the welding auxiliary device body in the unlocked state in this utility model;

[0013] Figure 2 This is a perspective view of the welding auxiliary device body in the locked state in this utility model;

[0014] Figure 3 This is a top sectional view of the shell and side panels;

[0015] Figure 4 This is a three-dimensional structural diagram of the gas-filled cabinet;

[0016] Legend:

[0017] 1. Welding auxiliary device body; 01. First positioning component; 011. First base; 012. First lock block seat; 013. Fixing plate; 014. Lock handle; 0141. First lock groove; 0142. Second lock groove; 0143. Counterweight; 015. First lock block; 0151. First protrusion; 02. Second positioning component; 021. Second base; 022. Second lock block seat; 023. Second lock block; 0231. Second protrusion; 0232. Pushing part; 2. Gas cabinet; 201. Shell; 202. Side plate; 3. Second protrusion; 301. Second mounting groove; 4. First protrusion; 401. First mounting groove; 5. First fixing magnet; 6. Second fixing magnet; 7. Third magnet. Detailed Implementation

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1-4The present invention discloses a welding auxiliary device for a gas-insulated cabinet shell, comprising a welding auxiliary device body 1 composed of a first positioning component 01 and a second positioning component 02. The first positioning component 01 and the second positioning component 02 are respectively assembled on one side of the side plate 202 and the inner wall of the shell 201, and are arranged opposite to each other. The first positioning component 01 includes a first base 011, a first locking block seat 012 is fixedly disposed on one side of the first base 011, and a fixing plate 013 is fixedly disposed on one side of the first locking block seat 012. A locking handle 014 is rotatably disposed on the fixing plate 013 via a rotating rod. The lock handle 014 has a first lock groove 0141 and a second lock groove 0142. A first lock block 015 is fixedly disposed on one side of the first lock block seat 012. The first lock block 015 includes a first protrusion 0151 that engages with the second lock groove 0142 for locking. The second positioning assembly 02 includes a second base 021. A second lock block seat 022 is fixedly disposed on one side of the second base 021. A second lock block 023 is fixedly disposed on the second lock block seat 022. The second lock block 023 includes a second protrusion 0231 that engages with the first lock groove 0141 for locking, and a mechanism for pushing the lock handle. 014 rotates to complete the positioning and locking of the push part 0232; during operation, when fixing the side plate 202 to the housing 201, during the installation process, the first positioning component 01 is installed on the side plate 202, and the second positioning component 02 is installed on the inner wall of the housing 201. The welding auxiliary device body 1 is evenly and oppositely distributed in the gas chamber 2 to ensure uniform force distribution. When the side plate 202 and the housing 201 are welded together, the side plate 202 is moved closer to the housing 201. At this time, the push part 0232 of the second positioning component 02 will push the locking handle 014 of the first positioning component 01 to rotate, and the first locking block 015... A protrusion 0151 engages with the second locking groove 0142 of the lock handle 014 for locking, while the second protrusion 0231 of the second locking block 023 engages with the first locking groove 0141 of the lock handle 014 for locking. This achieves precise positioning and locking of the side plate 202 and the housing 201. Through the mutual engagement and locking of the first positioning component 01 and the second positioning component 02, the side plate and the housing can be precisely positioned, effectively preventing relative displacement of the side plate and the housing due to external forces during the welding process. This improves welding accuracy, reduces dimensional deviations and tilting problems caused by welding, and thus improves the product quality of the gas-filled cabinet, while significantly increasing the yield rate.

[0021] Furthermore, a first protruding strip 4 is fixedly provided on the inner wall of the housing 201, and a second protruding strip 3 is fixedly provided on the side plate 202. The first protruding strip 4 and the second protruding strip 3 are respectively provided with a first mounting groove 401 and a second mounting groove 301 for installing the second positioning component 02 and the first positioning component 01. The number of first mounting grooves 401 and second mounting grooves 301 is the same and they are arranged in a one-to-one correspondence. A first fixing magnet 5 and a second fixing magnet 6 are fixedly provided on one side of the first base 011 and the second base 021, respectively, and their shapes and sizes are adapted to the second mounting groove 301 and the first mounting groove 401, respectively. During operation, when installing the first positioning component 01 and the second positioning component 02, the first positioning component 01 is installed using… The first fixed magnet 5 and the second fixed magnet 6 magnetically attract the second mounting groove 301 and the first mounting groove 401 respectively, fixing the first positioning component 01 and the second positioning component 02 to their corresponding positions on the side plate 202 and the housing 201. The first protrusion 4 and the second protrusion 3, as well as the corresponding mounting grooves, provide a stable mounting base for the positioning components. After the side plate 202 and the housing 201 are completed and the subsequent welding work is finished, the welding auxiliary device body 1 can be disassembled to continue the installation work of other gas cabinets 2. The positioning components can be installed and disassembled conveniently and quickly through magnetic attraction, while ensuring the stability of the positioning components during use, ensuring the reliability of their positioning function, and reducing installation time and installation errors.

[0022] Furthermore, a third magnet 7 is fixedly provided on the first locking block 015. During operation, when the lock handle 014 is not rotated to the locking position, it needs to be kept in the unlocked state. The third magnet 7 on the first locking block 015 will generate a magnetic attraction with the lock handle 014 to prevent the lock handle 014 from rotating at the wrong time due to external force, which would affect the subsequent normal locking. The setting of the third magnet 7 enhances the locking reliability of the lock handle 014.

[0023] Furthermore, one end of the lock handle 014 is a counterweight 0143. During operation, the counterweight 0143 of the lock handle 014 utilizes gravity to facilitate the rotation of the lock handle 014 during installation. This allows the lock handle 014 to rotate more smoothly to the locking position when pushed by the pusher 0232. The design of the counterweight 0143 optimizes the rotation of the lock handle, ensuring smooth locking of the positioning component. This reduces installation difficulties and inaccurate positioning caused by inflexible lock handle rotation, thereby improving installation efficiency and positioning accuracy.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above shows and describes the basic principles, main features and 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 merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A welding auxiliary device for gas-insulated cabinet shells, characterized in that: The welding auxiliary device body (1) includes a first positioning component (01) and a second positioning component (02). The first positioning component (01) and the second positioning component (02) are respectively assembled on one side of the side plate (202) and the inner wall of the housing (201), and are arranged opposite to each other. The first positioning component (01) includes a first base (011). A first locking block seat (012) is fixedly provided on one side of the first base (011). A fixing plate (013) is fixedly provided on one side of the first locking block seat (012). A locking handle (014) is rotatably provided on the fixing plate (013) via a rotating rod. A first locking groove (0141) and a second lock are provided on the locking handle (014). The groove (0142) has a first locking block (015) fixedly disposed on one side of the first locking block seat (012). The first locking block (015) includes a first protrusion (0151) that engages with the second locking groove (0142) for locking. The second positioning component (02) includes a second base (021). A second locking block seat (022) is fixedly disposed on one side of the second base (021). A second locking block (023) is fixedly disposed on the second locking block seat (022). The second locking block (023) includes a second protrusion (0231) that engages with the first locking groove (0141) for locking. A pusher (0232) is used to push the lock handle (014) to rotate to complete the positioning and locking.

2. The auxiliary device for welding gas-insulated cabinet shells according to claim 1, characterized in that: A first protruding strip (4) is fixedly provided on the inner wall of the housing (201), and a second protruding strip (3) is fixedly provided on the side plate (202). The first protruding strip (4) and the second protruding strip (3) are respectively provided with a first mounting groove (401) and a second mounting groove (301) for installing the second positioning component (02) and the first positioning component (01). The number of the first mounting groove (401) and the second mounting groove (301) are the same and they are arranged in a one-to-one correspondence. A first fixing magnet (5) and a second fixing magnet (6) are respectively fixedly provided on one side of the first base (011) and the second base (021), and the shape and size of the two are adapted to the second mounting groove (301) and the first mounting groove (401).

3. The auxiliary device for welding gas-insulated cabinet shells according to claim 1, characterized in that: A third magnet (7) is fixedly installed on the first locking block (015).

4. The auxiliary device for welding gas-insulated cabinet shells according to claim 1, characterized in that: One end of the lock handle (014) is a counterweight (0143).

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