Foundation pit supporting device for construction of power transmission tower in permafrost region

Abstract

The utility model relates to the technical field of power transmission tower construction, in particular to a foundation pit supporting device for power transmission tower construction in a permafrost region, which comprises a base, an anchor rod arranged at the bottom of the base, a supporting mechanism mounted at the top of the base and a movable plate rotationally connected to one end of the top of the base, the outer side of the U-shaped round rod is slidably sleeved with a sliding block. A vertical plate is mounted at one end of the top of the base, a sleeve block is arranged at the other end, a sliding round rod is arranged between the vertical plate and the sleeve block, a sliding plate slidably sleeves the outer side of the sliding round rod, and a movable rod is connected between the sliding plate and the sliding block; according to the device, through cooperation of a movable rod, a sliding block, a U-shaped round rod and a rolling wheel, a movable plate can rotate conveniently, then the inclination angle of the movable plate can be changed, so that a supporting plate abuts against the power transmission tower, the power transmission tower is conveniently limited and prevented from shaking, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission tower construction, in particular to a foundation pit supporting device for construction of transmission towers in frozen soil areas. Background Art

[0002] The transmission tower is the support point of the overhead line. If one circuit is erected on the transmission tower, it is a single-circuit transmission tower. If two circuits are erected on the transmission tower, it is a double-circuit transmission tower. A single circuit refers to a circuit in which one load has one power supply; a double circuit refers to a circuit in which one load has two power supplies. Generally, enterprises with high requirements for power supply reliability or important regional substations use double-circuit power supply. This can protect one of the power supplies from power outages for some reason while the other power supply can continue to supply power. However, for general small and medium-sized users who do not have high requirements for power supply reliability, single power supply is often used.

[0003] Due to the special frozen state of the soil in permafrost areas, foundation pit support during the construction of transmission towers becomes a technical challenge. Traditional support devices are often difficult to adapt to the complex geological conditions in permafrost areas, and are prone to problems such as foundation pit deformation and instability, which seriously affect construction safety and project quality. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a foundation pit support device for the construction of transmission towers in frozen soil areas, which effectively solves the problem that existing transmission towers have poor stability and are prone to shaking.

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

[0006] A foundation pit support device for construction of a transmission tower in a frozen soil region comprises a base 1, anchor rods 4 are provided at the bottom of the base 1 near the four corners, and a support mechanism 2 is installed on the top of the base 1;

[0007] The support mechanism 2 includes a movable plate 201 rotatably connected to one end of the top of the base 1 , a U-shaped round rod 2012 is fixedly installed on the inner side of the movable plate 201 , and a slider 203 is slidably sleeved on the outer side of the U-shaped round rod 2012 ;

[0008] A vertical plate 207 is installed at the end of the top of the base 1 away from the movable plate 201, and a sleeve block 2011 is provided at the end of the top of the base 1 close to the movable plate 201, which is symmetrical with the vertical plate 207. A sliding round rod 205 is provided between the vertical plate 207 and the sleeve block 2011, and a slide plate 206 is slidably sleeved on the outer side of the sliding round rod 205, and a movable rod 204 is connected between the slide plate 206 and the slider 203.

[0009] Furthermore, a screw rod 2010 is rotatably connected between the sleeve block 2011 and the vertical plate 207 . The screw rod 2010 is located directly below the sliding rod 205 . The outer side of the screw rod 2010 is threadedly sleeved with a screw sleeve 209 , and the screw sleeve 209 is fixed to the bottom of the slide plate 206 .

[0010] Furthermore, one end of the screw rod 2010 passes through the vertical plate 207 and is installed with a turntable 208 .

[0011] Furthermore, a roller 2013 is provided on one side of the slider 203 close to the movable plate 201, and the roller 2013 is in contact with the movable plate 201. The provision of the roller can ensure the stability of the slider when sliding. Specifically, when the slider is driven by the movable rod to slide along the U-shaped round rod, the roller will roll on the movable plate, ensuring the stability of the slider when sliding.

[0012] Furthermore, the device also includes an adjustment mechanism 3, which includes a groove 2015 opened at the top of the movable plate 201, and a mounting shaft 2016 is rotatably connected in the groove 2015. The outer side of the mounting shaft 2016 is fixedly sleeved with a sleeve 2014, and the outer side of the sleeve 2014 is fixedly installed with a support plate 202.

[0013] Furthermore, a guide column 301 is provided in the groove 2015 below the mounting shaft 2016, and an outer ring 302 and a guide block 305 are slidably sleeved on the outer side of the guide column 301, and a spring 303 is provided between the outer ring 302 and the guide block 305, and the spring 303 is sleeved on the outer side of the guide column 301; a U-shaped pull rod 304 is provided on one side of the movable plate 201, and the open end of the U-shaped pull rod 304 passes through the movable plate 201 and is connected to the guide block 305, and the U-shaped pull rod 304 is movably connected to the movable plate 201; an insertion rod 306 is installed on the side of the guide block 305 close to the sleeve 2014, and a number of sockets 307 matching the insertion rods are evenly opened on the side of the sleeve 2014 close to the guide block 305, and the insertion rod 306 is inserted into the corresponding sockets 307.

[0014] Compared with the existing technology, the foundation pit support device of the present invention has the following beneficial effects:

[0015] (1) Through the cooperation between the screw and the screw sleeve, when the turntable is rotated, the slide plate slides along the sliding rod, and through the cooperation between the movable rod and the slider, and the U-shaped rod and the roller, the movable plate rotates, and then the inclination angle of the movable plate is changed so that the support plate abuts against the transmission tower, thereby facilitating the positioning of the transmission tower to prevent it from shaking;

[0016] (2) The new type facilitates the rotation of the support plate by the cooperation between the mounting shaft and the sleeve, and facilitates the insertion of the rod into the corresponding socket by the cooperation between the guide column and the guide block and the spring and the outer ring, so that the support plate can be fixed after rotation, thereby facilitating the change of the inclination angle of the support plate and increasing its contact area with the transmission tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the foundation pit supporting device of the utility model;

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

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

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0021] In the figure: 1-base; 2-support mechanism; 201-movable plate; 202-support plate; 203-slider; 204-movable rod; 205-sliding round rod; 206-slide plate; 207-vertical plate; 208-turntable; 209-screw sleeve; 2010-screw rod; 2011-sleeve block; 2012-U-shaped round rod; 2013-roller; 2014-sleeve; 2015-groove; 2016-mounting shaft; 3-adjustment mechanism; 301-guide column; 302-outer ring; 303-spring; 304-U-shaped pull rod; 305-guide block; 306-insertion rod; 307-socket; 4-anchor rod. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are only used to illustrate the present invention but are not used to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example 1

[0025] like Figure 1As described above, this embodiment proposes a foundation pit support device for construction of transmission towers in frozen soil areas, including a base 1, anchor rods 4 are provided at the bottom of the base 1 near the four corners, and a support mechanism 2 is installed on the top of the base 1.

[0026] like Figure 2 As shown, the support mechanism 2 includes a movable plate 201 rotatably connected to one end of the top of the base 1. A U-shaped round rod 2012 is fixedly mounted on the inner side of the movable plate 201. A slider 203 is slidably sleeved on the outer side of the U-shaped round rod 2012. A roller 2013 is provided on the side of the slider 203 close to the movable plate 201. The roller 2013 is in contact with the movable plate 201. The provision of the roller ensures the stability of the slider during sliding.

[0027] A vertical plate 207 is mounted on the top end of the base 1 away from the movable plate 201, and a sleeve 2011 is mounted on the top end of the base 1 close to the movable plate 201, symmetrical to the vertical plate 207. A sliding rod 205 is disposed between the vertical plate 207 and the sleeve 2011. A slide plate 206 is slidably sleeved on the outer side of the sliding rod 205. A movable rod 204 is connected between the slide plate 206 and the slider 203. A screw rod 2010 is rotatably connected between the sleeve 2011 and the vertical plate 207. The screw rod 2010 is located directly below the sliding rod 205. A screw sleeve 209 is threadedly sleeved on the outer side of the screw rod 2010. The screw sleeve 209 is fixed to the bottom of the slide plate 206. One end of the screw rod 2010 passes through the vertical plate 207 and is mounted with a turntable 208.

[0028] During specific use, first rotate the turntable 208 to drive the screw 2010 to rotate, and drive the slide plate 206 to slide along the sliding rod 205 through the screw sleeve 209, and then drive the slider 203 to slide along the U-shaped rod 2012 through the movable rod 204. At the same time, the roller 2013 rolls on the movable plate 201 to ensure the stability of the slider 203 when sliding. At this time, the movable plate 201 rotates, and finally the inclination angle of the movable plate 201 is changed to make the support plate 202 abut against the transmission tower, thereby limiting the transmission tower and preventing it from shaking.

[0029] Example 2

[0030] like Figure 1 As described above, this embodiment proposes a foundation pit support device for construction of transmission towers in frozen soil areas, including a base 1, anchor rods 4 are provided at the bottom of the base 1 near the four corners, and a support mechanism 2 is installed on the top of the base 1.

[0031] like Figure 2As shown, the support mechanism 2 includes a movable plate 201 rotatably connected to one end of the top of the base 1. A U-shaped round rod 2012 is fixedly mounted on the inner side of the movable plate 201. A slider 203 is slidably sleeved on the outer side of the U-shaped round rod 2012. A roller 2013 is provided on the side of the slider 203 close to the movable plate 201. The roller 2013 is in contact with the movable plate 201. The provision of the roller ensures the stability of the slider during sliding.

[0032] A vertical plate 207 is mounted on the top end of the base 1 away from the movable plate 201, and a sleeve 2011 is mounted on the top end of the base 1 close to the movable plate 201, symmetrical to the vertical plate 207. A sliding rod 205 is disposed between the vertical plate 207 and the sleeve 2011. A slide plate 206 is slidably sleeved on the outer side of the sliding rod 205. A movable rod 204 is connected between the slide plate 206 and the slider 203. A screw rod 2010 is rotatably connected between the sleeve 2011 and the vertical plate 207. The screw rod 2010 is located directly below the sliding rod 205. A screw sleeve 209 is threadedly sleeved on the outer side of the screw rod 2010. The screw sleeve 209 is fixed to the bottom of the slide plate 206. One end of the screw rod 2010 passes through the vertical plate 207 and is mounted with a turntable 208.

[0033] During specific use, first rotate the turntable 208 to drive the screw 2010 to rotate, and drive the slide plate 206 to slide along the sliding rod 205 through the screw sleeve 209, and then drive the slider 203 to slide along the U-shaped rod 2012 through the movable rod 204. At the same time, the roller 2013 rolls on the movable plate 201 to ensure the stability of the slider 203 when sliding. At this time, the movable plate 201 rotates, and finally the inclination angle of the movable plate 201 is changed to make the support plate 202 abut against the transmission tower, thereby limiting the transmission tower and preventing it from shaking.

[0034] like Figure 1 , Figure 3 As shown, the device also includes an adjustment mechanism 3, which includes a groove 2015 opened at the top of the movable plate 201, a mounting shaft 2016 rotatably connected in the groove 2015, a sleeve 2014 fixedly sleeved on the outer side of the mounting shaft 2016, and a support plate 202 fixedly installed on the outer side of the sleeve 2014.

[0035] like Figure 4As shown, a guide column 301 is provided in the groove 2015 below the mounting shaft 2016, and an outer ring 302 and a guide block 305 are slidably sleeved on the outer side of the guide column 301, and a spring 303 is provided between the outer ring 302 and the guide block 305, and the spring 303 is sleeved on the outer side of the guide column 301; a U-shaped pull rod 304 is provided on one side of the movable plate 201, and the open end of the U-shaped pull rod 304 passes through the movable plate 201 and is connected to the guide block 305, and the U-shaped pull rod 304 is movably connected to the movable plate 201; an insertion rod 306 is installed on the side of the guide block 305 close to the sleeve 2014, and a number of sockets 307 matching the insertion rods are evenly opened on the side of the sleeve 2014 close to the guide block 305, and the insertion rods 306 are inserted into the corresponding sockets 307.

[0036] When in use, first pull the U-shaped pull rod 304 to drive the guide block 305 to slide along the guide column 301 in the direction away from the sleeve. At this time, the spring 303 is stretched until the rod 306 disengages from the corresponding socket 307, thereby releasing the fixation of the sleeve 2014. Then the sleeve 2014 is rotated to drive the support plate 202 to rotate. When the support plate 202 rotates to the appropriate position, the control of the U-shaped pull rod 304 is released. At this time, the spring 303 resets and drives the guide block 305 to slide along the guide column 301 and approach the sleeve 2014 until the rod 306 is inserted into the corresponding socket 307, fixing the sleeve 2014 and the guide block 305, and fixing the position of the support plate 202. Finally, the inclination angle of the support plate 202 is changed to increase its contact area with the transmission tower.

[0037] It should be noted that all components in the present invention are universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, the standard parts used in the present invention can be purchased on the market. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, so this application document will not explain in detail.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A foundation pit support device for construction of transmission towers in frozen soil areas, characterized by: It comprises a base (1), wherein anchor rods (4) are provided at the bottom of the base (1) near the four corners, and a supporting mechanism (2) is installed at the top of the base (1); The support mechanism (2) comprises a movable plate (201) rotatably connected to one end of the top of the base (1); a U-shaped round rod (2012) is fixedly mounted on the inner side of the movable plate (201); and a slider (203) is slidably sleeved on the outer side of the U-shaped round rod (2012); A vertical plate (207) is installed at one end of the top of the base (1) away from the movable plate (201), and a sleeve block (2011) symmetrical to the vertical plate (207) is provided at one end of the top of the base (1) close to the movable plate (201). A sliding round rod (205) is provided between the vertical plate (207) and the sleeve block (2011), and a slide plate (206) is slidably sleeved on the outer side of the sliding round rod (205), and a movable rod (204) is connected between the slide plate (206) and the slider (203).

2. The foundation pit support device for construction of a transmission tower in a frozen soil region according to claim 1, characterized in that: A screw rod (2010) is rotatably connected between the sleeve block (2011) and the vertical plate (207). The screw rod (2010) is located directly below the sliding round rod (205). The outer thread of the screw rod (2010) is sleeved with a screw sleeve (209), and the screw sleeve (209) is fixed to the bottom of the slide plate (206).

3. The foundation pit support device for construction of a transmission tower in a frozen soil region according to claim 2, characterized in that: One end of the screw rod (2010) passes through the vertical plate (207) and is installed with a rotating disk (208).

4. The foundation pit support device for construction of a transmission tower in a frozen soil region according to claim 1, characterized in that: A roller (2013) is provided on one side of the slider (203) close to the movable plate (201), and the roller (2013) is in contact with the movable plate (201).

5. A foundation pit support device for construction of a transmission tower in a frozen soil region according to any one of claims 1 to 4, characterized in that: The device further comprises an adjusting mechanism (3), wherein the adjusting mechanism (3) comprises a groove (2015) provided at the top end of the movable plate (201), a mounting shaft (2016) being rotatably connected in the groove (2015), a sleeve (2014) being fixedly sleeved on the outer side of the mounting shaft (2016), and a supporting plate (202) being fixedly mounted on the outer side of the sleeve (2014).

6. The foundation pit support device for construction of a transmission tower in a frozen soil region according to claim 5, characterized in that: A guide column (301) is provided in the groove (2015) below the mounting shaft (2016); an outer ring (302) and a guide block (305) are slidably sleeved on the outer side of the guide column (301); a spring (303) is provided between the outer ring (302) and the guide block (305); and the spring (303) is sleeved on the outer side of the guide column (301); A U-shaped pull rod (304) is provided on one side of the movable plate (201), and the open end of the U-shaped pull rod (304) passes through the movable plate (201) and is connected to the guide block (305), and the U-shaped pull rod (304) is movably connected to the movable plate (201); an insertion rod (306) is installed on the side of the guide block (305) close to the sleeve (2014), and a plurality of insertion holes (307) matching the insertion rods are evenly opened on the side of the sleeve (2014) close to the guide block (305), and the insertion rods (306) are inserted into the corresponding insertion holes (307).

Images