Alternating current traction power supply structure for urban rail transit

Abstract

The utility model relates to the technical field of urban rail transit, and discloses an alternating current traction power supply structure for urban rail transit, which solves the problem that a contact network is inconvenient to quickly position at present, and comprises a support column, the contact network is arranged on the outer side of the support column, and a fixing mechanism is arranged between the contact network and the support column. The fixing mechanism comprises a supporting plate fixedly connected to the outer side of the supporting column in a sleeving mode, an arc-shaped groove is formed in the top of the supporting plate, the contact net is located in the arc-shaped groove, the top of the supporting plate is fixedly connected with an abutting block, the top of the abutting block is fixedly connected with a U-shaped round rod, the outer side of the U-shaped round rod is movably connected with a lifting plate in a sleeving mode, and a clamping block is fixedly connected to the bottom of the lifting plate. The clamping blocks abut against the contact net. According to the device, the movable rod, the second sliding block, the sliding rod, the first sliding block, the spring, the fixing ring, the support, the limiting block and the abutting block are matched, the catenary can be clamped left and right conveniently, and therefore the catenary can be rapidly and stably positioned conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of urban rail transit technology, specifically an AC traction power supply structure for urban rail transit. Background Technology

[0002] With the rapid development of cities, urban rail transit, as an efficient, convenient, and environmentally friendly mode of public transportation, plays an increasingly important role in the urban transportation system. The traction power supply system is a key component of urban rail transit, and its performance directly affects the operating efficiency, safety, and reliability of trains. Among them, the contact network system in the AC traction power supply structure is used to transmit the AC power output from the traction substation to the train. The contact network is fixed to the support structure by a positioning device to ensure good contact with the train's pantograph and achieve efficient transmission of electrical energy.

[0003] In existing technologies, overhead contact lines are generally fixed with bolts, which requires multiple operations, making the process cumbersome and inconvenient for quick positioning of the contact line. Utility Model Content

[0004] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides an AC traction power supply structure for urban rail transit, which effectively solves the problem of the inconvenience of quickly locating the overhead contact line.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an AC traction power supply structure for urban rail transit, comprising a support column, a contact wire provided on the outer side of the support column, and a fixing mechanism provided between the contact wire and the support column;

[0006] The fixing mechanism includes a support plate fixedly sleeved on the outside of the support column. The top of the support plate is provided with an arc-shaped groove, and the contact wire is located in the arc-shaped groove. An abutment block is fixedly connected to the top of the support plate. A U-shaped rod is fixedly connected to the top of the abutment block. A lifting plate is movably sleeved on the outside of the U-shaped rod. A clamping block is fixedly connected to the bottom of the lifting plate. The clamping block abuts against the contact wire. The top of the support plate is provided with a sliding groove. A sliding rod is fixedly connected in the sliding groove. A slider is movably sleeved on the outside of the sliding rod. A bracket is fixedly connected to the top of the slider. A limit block is fixedly connected on the bracket. The contact wire is located between the limit block and the abutment block.

[0007] Preferably, a fixing ring is fixedly sleeved on the outer side of the slide rod, and a spring is fixedly connected between the fixing ring and the slide block, with the spring sleeved on the outer side of the slide rod.

[0008] Preferably, a second slider is movably sleeved on the outer side of the slide rod, the second slider abuts against the side of the first slider away from the fixed ring, and a movable rod is rotatably connected to the top of the second slider, the top of the movable rod being rotatably connected to the bottom of the lifting plate.

[0009] Preferably, a threaded rod is fixedly connected to the top of the support column, a threaded cylinder is threadedly sleeved on the outer side of the threaded rod, a handwheel is fixedly connected to the top of the threaded cylinder, two outer rings are fixedly sleeved on the outer side of the threaded cylinder, and the lifting plate is located between the two sliding rods.

[0010] Preferably, a sealing gasket located outside the threaded rod is fixedly connected to the top of the support column, and the bottom end of the threaded cylinder is in contact with the sealing gasket.

[0011] Preferably, the top and bottom of the lifting plate are fixedly connected to limit posts, and the ends of the two limit posts away from the lifting plate are provided with limit balls, and the two limit balls are respectively attached to the sides of the two outer rings that are close to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The handwheel, threaded cylinder, threaded rod, outer ring, lifting plate and U-shaped rod work together to facilitate the clamping block to descend and clamp the contact wire placed in the arc groove. The movable rod, slider two, sliding rod, slider one, spring, fixed ring, bracket, limit block and abutment block work together to facilitate the clamping of the contact wire from left to right, thus facilitating the rapid and stable positioning of the contact wire.

[0014] 2. The cooperation between the limiting post and the limiting ball can prevent the outer ring from directly contacting the lifting plate, which can reduce the friction between the outer ring and the lifting plate, thus facilitating the rapid rotation of the threaded cylinder and making the lifting plate slide along the U-shaped rod. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the AC traction power supply structure of this utility model for urban rail transit;

[0018] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the lifting plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the support column and threaded cylinder of this utility model.

[0021] In the diagram: 1. Support column; 2. Fixing mechanism; 201. Support plate; 202. Arc groove; 203. Outer ring; 204. Threaded cylinder; 205. Handwheel; 206. Lifting plate; 207. Slide groove; 208. Movable rod; 209. Fixed ring; 2010. Spring; 2011. Slider one; 2012. Slider two; 2013. Slide rod; 2014. Limiting block; 2015. Abutment block; 2016. Limiting post; 2017. Limiting ball; 2018. U-shaped round rod; 2019. Clamping block; 2020. Bracket; 2021. Threaded rod; 2022. Sealing gasket; 3. Contact wire. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1, by Figure 1 The present invention relates to an AC traction power supply structure for urban rail transit, comprising a support column 1, a contact wire 3 on the outer side of the support column 1, and a fixing mechanism 2 between the contact wire 3 and the support column 1.

[0024] Specifically, by Figure 2-4The fixing mechanism 2 includes a support plate 201 fixedly sleeved on the outside of the support column 1. The top of the support plate 201 is provided with an arc-shaped groove 202, and the contact wire 3 is located in the arc-shaped groove 202. An abutment block 2015 is fixedly connected to the top of the support plate 201, and a U-shaped round rod 2018 is fixedly connected to the top of the abutment block 2015. A lifting plate 206 is movably sleeved on the outside of the U-shaped round rod 2018, and a clamping block 2019 is fixedly connected to the bottom of the lifting plate 206. The clamping block 2019 abuts against the contact wire 3. The top of the support plate 201 is provided with a sliding groove 207, and a sliding rod 2013 is fixedly connected in the sliding groove 207. A slider 2011 is movably sleeved on the outside of the sliding rod 2013. A bracket 2020 is fixedly connected to the top of the slider 2011. A limit block 2014 is fixedly connected on the bracket 2020. The contact wire 3 is located between the limit block 2014 and the abutment block 2015. A fixing ring 209 is fixedly sleeved on the outside of the sliding rod 2013. The fixing ring 209 is connected to the slider 2011. A spring 2010 is fixedly connected and sleeved on the outside of a slide rod 2013. A second slider 2012 is movably sleeved on the outside of the slide rod 2013. The second slider 2012 abuts against the side of the first slider 2011 away from the fixed ring 209. A movable rod 208 is rotatably connected to the top of the second slider 2012. The top of the movable rod 208 is rotatably connected to the bottom of the lifting plate 206. A threaded rod 2021 is fixedly connected to the top of the support column 1. A threaded sleeve is threaded onto the outside of the threaded rod 2021. The threaded cylinder 204 has a handwheel 205 fixedly connected to its top end. Two outer rings 203 are fixedly sleeved on the outer side of the threaded cylinder 204. The lifting plate 206 is located between two sliding rods 2013. The top end of the support column 1 is fixedly connected to a sealing gasket 2022 located outside the threaded rod 2021. The bottom end of the threaded cylinder 204 is in contact with the sealing gasket 2022. By setting the sealing gasket 2022, the threaded rod 2021 can be sealed and protected, thereby preventing the threaded rod 2021 from being corroded.

[0025] In the initial state, slider 2012 abuts against the side of slider 2011 away from the fixed ring 209, while spring 2010 is compressed. When contact wire 3 is placed in the arc groove 202, it abuts against the abutment block 2015. Then, rotating handwheel 205 causes threaded cylinder 204 to rotate. Since threaded cylinder 204 is threaded onto the outside of threaded rod 2021, threaded cylinder 204 moves downward along the length of threaded rod 2021, causing the two outer rings 203 to descend. This then causes lifting plate 206 to slide downward along U-shaped rod 2018, while clamping block 2019 descends. The movable rod 208 drives the second slider 2012 to slide along the slide rod 2013 and move away from the fixed ring 209. At this time, the first slider 2011 slides along the slide rod 2013 and moves away from the fixed ring 209 under the action of the spring 2010. The bracket 2020 drives the limiting block 2014 to move horizontally. When the limiting block 2014 abuts against the contact wire 3, it achieves left and right clamping of the contact wire 3. At this time, the clamping block 2019 is not in contact with the contact wire 3. Continue to rotate the handwheel 205 until the clamping block 2019 contacts the contact wire 3, achieving up and down clamping of the contact wire 3. Finally, the contact wire 3 is quickly and stably positioned.

[0026] Specifically, by Figure 3 As shown, the top and bottom of the lifting plate 206 are fixedly connected to limit posts 2016, and the ends of the two limit posts 2016 away from the lifting plate 206 are provided with limit balls 2017. The two limit balls 2017 are respectively attached to the sides of the two outer rings 203 that are close to each other.

[0027] In use, limiting balls 2017 are provided on both sides of the lifting plate 206 to abut against the two outer rings 203 respectively, so as to avoid direct contact between the two outer rings 203 and the lifting plate 206, reduce the friction between the outer rings 203 and the lifting plate 206, and finally facilitate the rapid rotation of the threaded cylinder 204 so that the lifting plate 206 slides along the U-shaped rod 2018.

Claims

1. An alternating current traction power supply structure for urban rail transport, comprising a support column (1), characterized in that: The outer side of the support column (1) is provided with a contact network (3), and a fixing mechanism (2) is arranged between the contact network (3) and the support column (1); The fixing mechanism (2) comprises a support plate (201) fixedly sleeved on the outer side of the support column (1), the top of the support plate (201) is provided with an arc-shaped groove (202), the contact network (3) is located in the arc-shaped groove (202), the top of the support plate (201) is fixedly connected with an abutting block (2015), the top of the abutting block (2015) is fixedly connected with a U-shaped round rod (2018), the outer side of the U-shaped round rod (2018) movably sleeved with a lifting plate (206), the bottom of the lifting plate (206) is fixedly connected with a clamping block (2019), the clamping block (2019) abuts against the contact network (3), the top of the support plate (201) is provided with a sliding groove (207), the sliding groove (207) is fixedly connected with a sliding rod (2013), the outer side of the sliding rod (2013) movably sleeved with a sliding block one (2011), the top of the sliding block one (2011) is fixedly connected with a support (2020), the support (2020) is fixedly connected with a limiting block (2014), the contact network (3) is located between the limiting block (2014) and the abutting block (2015).

2. The AC traction power supply structure for urban rail transit according to claim 1, characterized in that: The outer side of the sliding rod (2013) is fixedly sleeved with a fixed ring (209), the fixed ring (209) and the sliding block one (2011) are fixedly connected with a spring (2010), and the spring (2010) is sleeved on the outer side of the sliding rod (2013).

3. The AC traction power supply structure for urban rail transit according to claim 1, characterized in that: The outer side of the sliding rod (2013) movably sleeved with a sliding block two (2012), the sliding block two (2012) and the sliding block one (2011) abut against the side away from the fixed ring (209), the top of the sliding block two (2012) is rotatably connected with a movable rod (208), and the top end of the movable rod (208) is rotatably connected with the bottom of the lifting plate (206).

4. The AC traction power supply structure for urban rail transit according to claim 1, characterized in that: The top end of the support column (1) is fixedly connected with a threaded rod (2021), the outer side of the threaded rod (2021) is threadedly sleeved with a threaded cylinder (204), the top end of the threaded cylinder (204) is fixedly connected with a hand wheel (205), the outer side of the threaded cylinder (204) is fixedly sleeved with two outer rings (203), and the lifting plate (206) is located between the two sliding rods (2013).

5. The AC traction power supply structure for urban rail transit according to claim 1, characterized in that: The top end of the support column (1) is fixedly connected with a sealing gasket (2022) located on the outer side of the threaded rod (2021), and the bottom end of the threaded cylinder (204) is attached to the sealing gasket (2022).

6. The AC traction power supply structure for urban rail transit according to claim 1, characterized in that: The top and bottom of the lifting plate (206) are fixedly connected with limiting columns (2016), and the ends of the two limiting columns (2016) away from the lifting plate (206) are provided with limiting balls (2017), and the two limiting balls (2017) are attached to the sides of the two outer rings (203) close to each other.

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