Traction transformer protection grounding box

Abstract

The utility model relates to the technical field of distribution boxes, and discloses a traction transformer protection grounding box, which comprises a box body, a box door, a plurality of mortise and tenon joint structures respectively connected between the box door and the box body, and a plurality of limiting components in one-to-one correspondence with the plurality of mortise and tenon joint structures, each limiting component comprises a sliding rod, each mortise and tenon joint structure comprises a tenon and a mortise opening, one end of the tenon is fixedly connected to the box door, and a groove is formed in the side wall of the tenon; the mortise opening is formed in the end, close to the box door, of the box body, the mortise opening and the tenon are mutually nested so that the box door and the box body can be tightly connected, the sliding rod is arranged on the side wall of the box body in a penetrating mode and extends into the mortise opening, one end of the sliding rod is located in the groove, and the outer diameter of the sliding rod is smaller than the inner diameter of the groove by 1-2 mm. During installation, the tenons only need to be inserted into the mortises to enable the tenons and the mortises to be nested with each other, and then the sliding rods are pushed into the grooves, so that the traction transformer has good sealing performance and stability, water hardly enters the box body, the service life of the traction transformer is prolonged, and the waterproof effect is improved while the traction transformer is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a traction transformer protection grounding box. Background Art

[0002] Traction transformers generally need to be protected when in use. Existing traction transformer protection boxes usually include a box body and a box door. The box door is connected to the box body by hinges. The box door is also provided with multiple bolts for closing the box door and the box body. When installing the above-mentioned protection box, it is necessary to rotate multiple bolts separately, which is a cumbersome process. In addition, the box door and the box body may not be completely sealed, and there may be gaps, resulting in poor waterproofing effect. Water may enter the box body through the gaps, thereby reducing the service life of the traction transformer. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a traction transformer protective grounding box, which can facilitate the installation of the box door and the box body while improving the waterproof effect.

[0004] The present invention provides a traction transformer protective grounding box, comprising: a box body, a box door, a plurality of mortise and tenon structures respectively connected between the box door and the box body, and a plurality of limiting components corresponding to the plurality of mortise and tenon structures, wherein the limiting components comprise a sliding rod, and the mortise and tenon structure comprises a tenon and a mortise, wherein one end of the tenon is fixedly connected to the box door, and a groove is provided on a side wall of the tenon; the mortise is provided at one end of the box body close to the box door, and the mortise and tenon are nested with each other so that the box door and the box body are tightly connected, the sliding rod is penetrated through the side wall of the box body and extends into the mortise, one end of the sliding rod is located in the groove, and the outer diameter of the sliding rod is 1-2 mm smaller than the inner diameter of the groove.

[0005] Optionally, the diameter of the box door is larger than the inner diameter of the box and smaller than the outer diameter of the box, a cavity is opened on the side wall of the box close to the groove, the sliding rod is located in the cavity, the sliding rod is slidably connected to the cavity, one end of the sliding rod extends out of the cavity and abuts against the bottom of the groove; the limiting component also includes: a first rack, a first gear, a second gear and a second rack, the first rack is fixedly connected to the end of the sliding rod away from the groove, and the tooth surface of the first rack faces downward; the first gear is rotatably connected to the side wall of the cavity, the first gear is meshed with the first rack; the second gear is fixedly connected to the first gear; the second rack is meshed with the second gear, the second rack is located in a direction perpendicular to the first rack, and one end of the second rack extends out of the box.

[0006] Optionally, the limiting component also includes: a first fixed block, a second fixed block and a spring, the first fixed block is fixedly connected to the cavity, the sliding rod is passed through the first fixed block and is slidably connected to the first fixed block; the second fixed block is fixed to the sliding rod, and the distance between the second fixed block and one end of the sliding rod near the groove is greater than the depth of the groove; the spring is arranged between the first fixed block and the second fixed block, the spring is sleeved on the sliding rod, one end of the spring is connected to the first fixed block, and the other end of the spring is connected to the second fixed block.

[0007] Optionally, an end of the tenon away from the door has an inclined surface, and the mortise and the tenon are nested with each other.

[0008] Optionally, a rubber pad is provided at one end of the slide rod close to the groove.

[0009] Optionally, it also includes a ring plate connected to one end of the second rack extending out of the box body.

[0010] Optionally, the middle area of ​​the door is made of transparent material.

[0011] Optionally, the transparent material is explosion-proof glass.

[0012] Optionally, mesh pressure relief holes are provided on two symmetrical sides of the box body, and explosion-proof membranes are fixedly provided on the surfaces of the pressure relief holes.

[0013] Optionally, a label is fixedly mounted on the surface of the door, the label is located at a corner of the door, and a high voltage danger sign is pasted on the surface of the label.

[0014] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0015] A traction transformer protective grounding box provided by an embodiment of the present disclosure includes a box body, a box door, a plurality of mortise and tenon structures respectively connected between the box door and the box body, and a plurality of limiting components corresponding to the plurality of mortise and tenon structures, wherein the limiting components include a sliding rod, and the mortise and tenon structure includes a tenon and a mortise, wherein one end of the tenon is fixedly connected to the box door, and a groove is provided on the side wall of the tenon; the mortise is provided at one end of the box body close to the box door, and the mortise and tenon are nested with each other so that the box door and the box body are tightly connected, the sliding rod passes through the side wall of the box body and extends into the mortise, one end of the sliding rod is located in the groove, and the outer diameter of the sliding rod is 1-2 mm smaller than the inner diameter of the groove. The mortise and tenon structure is finely processed, and does not require the use of glue or other fixing agents. The connection force of the mortise and tenon itself is used to stably support the entire structure, which makes the mortise and tenon structure very convenient in situations where disassembly and assembly are required. The addition of limiting components makes the mortise and tenon structure more stable. When installing, you only need to insert the tenon into the mortise, nest them together, and then push the slide bar into the groove. It has good sealing and stability, so that water hardly enters the inside of the box, thereby increasing the service life of the traction transformer and making the box door and the box body easy to install while improving the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a traction transformer protective grounding box provided by an embodiment of the present disclosure when the box body and the box door are not connected;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure of the A area in the middle;

[0018] Figure 3 A cross-sectional view of a traction transformer protective grounding box provided by an embodiment of the present disclosure when a box body and a box door are connected;

[0019] Figure 4 for Figure 1 A schematic diagram of the enlarged local structure of the middle B area;

[0020] Figure 5 A schematic diagram of the connection relationship between the first gear and the second gear provided in an embodiment of the present disclosure;

[0021] Figure 6 A side view of a traction transformer protective grounding box provided in an embodiment of the present disclosure;

[0022] Figure 7 A front view of a traction transformer protective grounding box provided by an embodiment of the present disclosure;

[0023] Description of reference numerals:

[0024] 1. Box body; 2. Box door; 3. Mortise and tenon structure; 30. Tenon; 300. Groove; 301. Inclined surface; 31. Mortise; 4. Limiting component; 40. Sliding rod; 41. First rack; 42. First gear; 43. Second gear; 44. Second rack; 45. First fixed block; 46. Second fixed block; 47. Spring; 5. Ring plate; 6. Transparent material; 7. Mesh pressure relief hole; 8. Label. DETAILED DESCRIPTION

[0025] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, in the description of the present invention, "plurality" means two or more than two. The terms "first" and "second" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0029] Traction transformers generally need to be protected when in use. Existing traction transformer protection boxes usually include a box body and a box door. The box door is connected to the box body by hinges. The box door is also provided with multiple bolts for closing the box door and the box body. When installing the above-mentioned protection box, it is necessary to rotate multiple bolts separately, which is a cumbersome process. In addition, the box door and the box body may not be completely sealed, and there may be gaps, resulting in poor waterproofing effect. Water may enter the box body through the gaps, thereby reducing the service life of the traction transformer.

[0030] To this end, an embodiment of the present disclosure provides a traction transformer protective grounding box, which can facilitate the installation of the box door and the box body while improving the waterproof effect.

[0031] At least one embodiment of the utility model provides a traction transformer protective grounding box, comprising: a box body, a box door, a plurality of mortise and tenon structures respectively connected between the box door and the box body, and a plurality of limiting components corresponding to the plurality of mortise and tenon structures, the limiting components comprising a sliding rod, the mortise and tenon structure comprising: a tenon and a mortise, the tenon having one end fixedly connected to the box door, a groove being provided on a side wall of the tenon; the mortise being provided at one end of the box body close to the box door, the mortise and tenon being nested with each other so that the box door and the box body are tightly connected, the sliding rod passing through the side wall of the box body and extending into the mortise, one end of the sliding rod being located in the groove, the outer diameter of the sliding rod being 1-2 mm smaller than the inner diameter of the groove.

[0032] In the traction transformer protective grounding box provided by the above-mentioned embodiment of the present disclosure, the mortise and tenon structure is finely processed, and the mortise and tenon structure does not require the use of glue or other fixing agents. The entire structure is stably supported by the connecting force of the mortise and tenon itself, which makes the mortise and tenon structure very convenient in situations where disassembly and assembly are required. The addition of limiting components makes the mortise and tenon structure more stable. During installation, it is only necessary to insert the tenon into the mortise, make them nest with each other, and then push the sliding rod into the groove. It has good sealing and stability, so that water hardly enters the interior of the box, thereby improving the service life of the traction transformer and making the box door and the box body easy to install while improving the waterproof effect.

[0033] The present disclosure is described below through several specific embodiments. In order to keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components may be omitted. When any component of the embodiments of the present disclosure appears in more than one figure, the component may be represented by the same reference numeral in each figure.

[0034] Reference Figures 1 to 4 , Figure 1 A cross-sectional view of a traction transformer protective grounding box provided by an embodiment of the present disclosure when the box body and the box door are not connected; Figure 2 for Figure 1 A schematic diagram of the enlarged local structure of the A area in the middle;

[0035] Figure 3 A cross-sectional view of a traction transformer protective grounding box provided by an embodiment of the present disclosure when a box body and a box door are connected; Figure 4 for Figure 1 The enlarged schematic diagram of the local structure of the B area; Figures 1 to 4As shown, an embodiment of the present disclosure provides a traction transformer protective grounding box, comprising: a box body 1, a box door 2, a plurality of mortise and tenon structures 3 respectively connected between the box door 2 and the box body 1, and a plurality of limiting components 4 corresponding to the plurality of mortise and tenon structures 3, wherein the limiting component 4 comprises a sliding rod 40, and the mortise and tenon structure 3 comprises: a tenon 30 and a mortise 31, one end of the tenon 30 is fixedly connected to the box door 2, and a groove 300 is provided on the side wall of the tenon 30; the mortise 31 is provided at one end of the box body 1 close to the box door 2, and the mortise 31 and the tenon 30 are nested with each other so that the box door 2 and the box body 1 are tightly connected, the sliding rod 40 is penetrated through the side wall of the box body 1 and extends into the mortise 31, one end of the sliding rod 40 is located in the groove 300, and the outer diameter of the sliding rod 40 is smaller than the inner diameter of the groove 300 by 1-2 mm.

[0036] The mortise and tenon structure is finely processed, and does not require the use of glue or other fixing agents. The entire structure is stably supported by the connecting force of the mortise and tenon itself, which makes the mortise and tenon structure very convenient in situations where disassembly and assembly are required. The setting of the limiting component makes the mortise and tenon structure more stable. During installation, you only need to insert the tenon into the mortise, nest them with each other, and then push the sliding rod into the groove. The outer diameter of the sliding rod is 1-2mm smaller than the inner diameter of the groove, so that after the sliding rod is inserted into the groove, the tenon will hardly move, so that the limiting effect is better. The mortise and tenon structure itself has good sealing and stability. The setting of the limiting component further enhances the sealing of the box body and the door, so that water hardly enters the inside of the box body, thereby increasing the service life of the traction transformer and making the door and the box body easy to install while improving the waterproof effect.

[0037] Reference Figures 1 to 5 , Figure 1 A cross-sectional view of a box body 1 and a box door 2 of a traction transformer protective grounding box provided by an embodiment of the present disclosure when they are not connected; Figure 2 for Figure 1 A schematic diagram of the enlarged local structure of the A area in the middle; Figure 3 A cross-sectional view of a traction transformer protective grounding box provided by an embodiment of the present disclosure when a box body 1 and a box door 2 are connected; Figure 4 for Figure 1 A schematic diagram of the enlarged local structure of the middle B area; Figure 5 A schematic diagram of the connection relationship between the first gear and the second gear provided in an embodiment of the present disclosure; Figures 1 to 5As shown, the diameter of the box door 2 is larger than the inner diameter of the box body 1 and smaller than the outer diameter of the box body 1, and a cavity is opened on the side of the side wall of the box body 1 close to the groove 300, and the sliding rod 40 is located in the cavity, and the sliding rod 40 is slidably connected to the cavity, and one end of the sliding rod 40 extends out of the cavity and abuts against the bottom of the groove 300; the limiting component 4 also includes: a sliding rod 40, a first rack 41, a first gear 42, a second gear 43 and a second rack 44, the first rack 41 is fixedly connected to the end of the sliding rod 40 away from the groove 300, and the tooth surface of the first rack 41 faces downward; the first gear 42 is rotatably connected to the side wall of the cavity, and the first gear 42 is meshed with the first rack 41; the second gear 43 is fixedly connected to the first gear 42; the second rack 44 is meshed with the second gear 43, the second rack 44 is located in a direction perpendicular to the first rack 41, and one end of the second rack 44 extends out of the box body 1.

[0038] After the tenon 30 is inserted into the mortise 31, the second rack 44 is pressed toward the second gear 43, the second rack 44 drives the second gear 43 to rotate, the second gear 43 drives the first rack 41 to move toward the groove 300, the first rack 41 drives the slide bar 40 to move toward the groove 300, so that the slide bar 40 enters the groove 300, which acts as a limit for the tenon 30. As long as the slide bar 40 is in the groove 300, the tenon 30 will not move in the mortise 31, further strengthening the sealing effect, making the waterproof and dustproof effects better. When it is necessary to open the door 2, it is only necessary to pull the second rack 44 away from the second gear 43, the second rack 44 drives the second gear 43 to rotate, the second gear 43 drives the first rack 41 to move away from the groove 300, and the first rack 41 drives the slide bar 40 to leave the groove 300. At this time, there is no limit effect. The door 2 and the box 1 can be disassembled by holding the handle and pulling the door 2 away from the box 1.

[0039] In the above embodiment, during installation, it is first necessary to control the second rack 44 so that the slide rod 40 moves out of the mortise 31, and then after the tenon 30 enters the mortise 31, the second rack 44 is controlled again so that the slide rod 40 enters the groove 300 to play a limiting role. This operation is still not the simplest.

[0040] To this end, the embodiments of the present disclosure provide an improved approach.

[0041] Refer again Figures 1 to 5The limiting component 4 also includes: a first fixed block 45, a second fixed block 46 and a spring 47. The first fixed block 45 is fixedly connected to the cavity. The sliding rod 40 is penetrated by the first fixed block 45 and is slidably connected to the first fixed block 45; the second fixed block 46 is fixedly connected to the sliding rod 40, and the distance between the second fixed block 46 and one end of the sliding rod 40 close to the groove 300 is greater than the depth of the groove 300; the spring 47 is arranged between the first fixed block 45 and the second fixed block 46, the spring 47 is sleeved on the sliding rod 40, one end of the spring 47 is connected to the first fixed block 45, and the other end of the spring 47 is connected to the second fixed block 46.

[0042] By setting the spring 47, during installation, there is no need to control the slide rod 40 to move out of the mortise 31. When the tenon 30 enters the mortise 31 and contacts the slide rod 40, the slide rod 40 will automatically move out of the mortise 31 under the action of the spring 47. When the tenon 30 and the mortise 31 are completely nested, that is, the slide rod 40 encounters the groove 300, the slide rod 40 will enter the groove 300 under the action of the spring 47, making the installation process simpler.

[0043] In the above embodiment, if the end of the tenon 30 away from the door 2 is square, it may be difficult to move the slide rod 40 when the tenon 30 is inserted into the mortise 31 .

[0044] To this end, the embodiments of the present disclosure provide an improved approach.

[0045] Refer again Figures 1 to 4 The end of the tenon 30 away from the door 2 has an inclined surface 301, and the mortise 31 and the tenon 30 are mutually nested. This makes it easier for the slide bar 40 to move in a direction away from the mortise 31.

[0046] In the above embodiment, when the tenon 30 is inserted into the mortise 31 , the inclined surface 301 of the tenon 30 will rub against the slide rod 40 . This process may damage the tenon 30 , thereby reducing the sealing effect.

[0047] To this end, the embodiments of the present disclosure provide an improved approach.

[0048] A rubber pad is provided on one end of the slide bar 40 close to the groove 300. The provision of the rubber pad prevents the tenon 30 from being damaged.

[0049] In the above embodiment, since there are multiple mortise and tenon structures 3 between the box body 1 and the box door 2, during the disassembly of the box door 2, it is necessary to control the second rack 44 corresponding to each mortise and tenon structure 3 to move away from the second gear 43 so that the slide rod 40 leaves the groove 300. This process is relatively cumbersome.

[0050] To this end, the embodiments of the present disclosure provide an improved approach.

[0051] Reference Figure 6 , Figure 6 A side view of a traction transformer protective grounding box provided in an embodiment of the present disclosure; Figure 6 As shown, a ring plate 5 is also included, and the ring plate 5 is connected to one end of the second rack 44 extending out of the box body 1. The ring plate 5 connects all the second racks 44 to form a whole. When disassembly is required, it is only necessary to control the ring plate 5 to move away from the second gear 43 to control the second racks 44 in all the limiting components 4 to move away from the second gear 43, so that the slide bars 40 in all the limiting components 4 leave the grooves 300 on the tenons 30 in all the mortise and tenon structures 3, and the limiting effect is cancelled.

[0052] Reference Figure 7 , Figure 7 A front view of a traction transformer protective grounding box provided in an embodiment of the present disclosure; Figure 7 As shown, the middle area of ​​the box door 2 is made of a transparent material 6. The transparent material 6 enables a better observation of the state of the traction transformer in the box body 1.

[0053] There are many types of transparent materials 6 , and some transparent materials 6 may not have explosion-proof function, thereby reducing the explosion-proof effect of the device.

[0054] To this end, the embodiments of the present disclosure provide an improved approach.

[0055] The transparent material 6 is explosion-proof glass, which can be used to observe the state of the traction transformer and also has a good explosion-proof effect.

[0056] Refer again Figure 7 The box body 1 is symmetrically provided with mesh pressure relief holes 7 on both sides, and an explosion-proof membrane is fixed on the surface of the pressure relief holes. The design of the explosion-proof membrane further enhances the explosion-proof effect.

[0057] A sign 8 is fixedly mounted on the surface of the door 2, and the sign 8 is located at a corner of the door 2. A high voltage danger sign is pasted on the surface of the sign 8. The sign 8 is located at a corner of the door 2 so that people can see the sign 8 well, stay away from the traction transformer, and the sign 8 will not block the glass, so that the staff can see the status of the traction transformer clearly.

[0058] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A traction transformer protective grounding box, characterized in that: The invention comprises a box body (1), a box door (2), a plurality of mortise and tenon structures (3) respectively connected between the box door (2) and the box body (1), and a plurality of position limiting components (4) corresponding to the plurality of mortise and tenon structures (3) one by one, wherein the position limiting components (4) comprise a sliding rod (40), and the mortise and tenon structures (3) comprise: A tenon (30), one end of which is fixedly connected to the door (2), and a groove (300) is formed on the side wall of the tenon (30); A mortise (31) is provided at one end of the box body (1) close to the box door (2); the mortise (31) and the tenon (30) are mutually nested so that the box door (2) and the box body (1) are tightly connected; the slide rod (40) is passed through the side wall of the box body (1) and extends into the mortise (31); one end of the slide rod (40) is located in the groove (300); the outer diameter of the slide rod (40) is 1-2 mm smaller than the inner diameter of the groove (300).

2. The traction transformer protective grounding box according to claim 1, characterized in that: The diameter of the box door (2) is larger than the inner diameter of the box body (1) and smaller than the outer diameter of the box body (1); a cavity is provided on a side of the side wall of the box body (1) close to the groove (300); the sliding rod (40) is located in the cavity; the sliding rod (40) is slidably connected to the cavity; one end of the sliding rod (40) extends out of the cavity and abuts against the bottom of the groove (300); the limiting component (4) further comprises: A first rack (41) is fixedly connected to an end of the slide bar (40) away from the groove (300), and a tooth surface of the first rack (41) faces downward; A first gear (42) is rotatably connected to the side wall of the cavity, and the first gear (42) is meshed with the first rack (41); A second gear (43) fixedly connected to the first gear (42); The second rack (44) is meshed with the second gear (43); the second rack (44) is located in a direction perpendicular to the first rack (41); one end of the second rack (44) extends out of the box (1).

3. The traction transformer protective grounding box according to claim 2, characterized in that: The limiting component (4) further comprises: A first fixed block (45) is fixedly connected to the cavity, and the sliding rod (40) is passed through the first fixed block (45) and is slidably connected to the first fixed block (45); A second fixing block (46) is fixedly connected to the slide bar (40), wherein the distance between the second fixing block (46) and one end of the slide bar (40) close to the groove (300) is greater than the depth of the groove (300); A spring (47) is arranged between the first fixed block (45) and the second fixed block (46); the spring (47) is sleeved on the slide bar (40); one end of the spring (47) is connected to the first fixed block (45), and the other end of the spring (47) is connected to the second fixed block (46).

4. The traction transformer protective grounding box according to claim 3, characterized in that: The end of the tenon (30) away from the door (2) has an inclined surface (301), and the mortise (31) and the tenon (30) are nested with each other.

5. The traction transformer protective grounding box according to claim 2, characterized in that: A rubber pad is provided on one end of the sliding rod (40) close to the groove (300).

6. The traction transformer protective grounding box according to claim 2, characterized in that: It also includes a ring plate (5), which is connected to one end of the second rack (44) extending out of the box body (1).

7. The traction transformer protective grounding box according to claim 1, characterized in that: The middle area of ​​the box door (2) is made of a transparent material (6).

8. The traction transformer protective grounding box according to claim 7, characterized in that: The transparent material (6) is explosion-proof glass.

9. The traction transformer protective grounding box according to claim 1, characterized in that: The box body (1) is symmetrically provided with mesh pressure relief holes (7) on both sides, and explosion-proof membranes are fixedly provided on the surfaces of the pressure relief holes.

10. The traction transformer protective grounding box according to claim 1, characterized in that: A mark (8) is fixedly mounted on the surface of the box door (2), the mark (8) is located at a corner of the box door (2), and a high-voltage danger sign is pasted on the surface of the mark (8).

Images