阅读说明：本技术 一种工业角铁 (Industrial angle iron ) 是由 不公告发明人 于 2019-09-11 设计创作，主要内容包括：本发明属于一种固定配件技术领域,具体的说是一种工业角铁,包括第一固定板、第二固定板和调节支柱；所述第一固定板上转动连接有第二固定板；所述第一固定板和第二固定板表面均开设有均匀布置的第一定位槽和第二定位槽；所述第一定位槽和对应的第二定位槽内插接有调节支柱；所述调节支柱包含有第一支柱和第二支柱；所述第一支柱与第二支柱之间滑动连接；所述第一支柱和第二支柱滑动连接处外表面螺纹连接有调节环,通过调节支柱的插接实现了角铁角度的快速粗调,通过调节支柱上的调节环转动实现精准微调,方便简单,满足不同环境需求,同时可以防止应力过度集中,结构较为稳定。(The invention belongs to the technical field of fixed accessories, and particularly relates to an industrial angle iron which comprises a first fixed plate, a second fixed plate and an adjusting strut, wherein the first fixed plate is fixed on the first fixed plate; the first fixing plate is rotatably connected with a second fixing plate; the surfaces of the first fixing plate and the second fixing plate are provided with a first positioning groove and a second positioning groove which are uniformly distributed; the first positioning groove and the corresponding second positioning groove are internally inserted with an adjusting strut; the adjusting strut comprises a first strut and a second strut; the first support column is connected with the second support column in a sliding mode; first pillar and second pillar sliding connection department surface threaded connection have the adjustable ring, have realized the quick coarse adjustment of angle bar angle through the grafting of adjusting the pillar, rotate through the adjustable ring on the regulation pillar and realize accurate fine setting, and is convenient simple, satisfies different environmental demands, can prevent simultaneously that stress from concentrating excessively that the structure is comparatively stable.)

1. an industrial angle iron, characterized in that: comprises a first fixing plate (1), a second fixing plate (2) and an adjusting strut (3); the first fixing plate (1) is rotatably connected with a second fixing plate (2), and rotating points are located at the end parts of the first fixing plate (1) and the second fixing plate (2); the surface of the first fixing plate (1) is provided with first positioning grooves (11) which are uniformly distributed; the surface of the second fixing plate (2) is provided with second positioning grooves (21) which are all arranged; the number of the first positioning grooves (11) and the number of the second positioning grooves (21) are four, and the first positioning grooves and the second positioning grooves are distributed in a straight line shape; the first positioning groove (11) and the second positioning groove (21) are symmetrically arranged by taking the symmetrical center lines of the first fixing plate (1) and the second fixing plate (2) as centers; the first positioning groove (11) and the corresponding second positioning groove (21) are internally inserted with an adjusting strut (3); the adjusting strut (3) comprises a first strut (31) and a second strut (32); the first support column (31) is connected with the second support column (32) in a sliding manner; an adjusting ring (33) is sleeved on the outer surface of the sliding connection part of the first strut (31) and the second strut (32); the outer surfaces of the first support column (31) and the second support column (32) at the position of the adjusting ring (33) are both provided with threads, and the directions of the threads are opposite; the inner surface of the adjusting ring (33) is provided with threads; the adjusting ring (33) is in threaded connection with the first support column (31) and the second support column (32) respectively, and the first support column (31) and the second support column (32) can move oppositely and oppositely.

2. The industrial angle iron of claim 1, wherein: the first positioning groove (11) and the second positioning groove (21) are internally provided with a first air bag (12); steel balls (13) which are uniformly distributed are wrapped in the first air bag (12); the outer parts of the first air bags (12) are fixedly connected with second air bags (14); the first air bag (12) and the second air bag (14) are communicated at the bottom positions of the first positioning groove (11) and the second positioning groove (21).

3. The industrial angle iron of claim 2, wherein: first arc-shaped grooves (15) which are uniformly distributed are formed in the first positioning groove (11) and the second positioning groove (21); two ends of the adjusting strut (3) are respectively provided with second arc-shaped grooves (16) which are uniformly distributed; the first arc-shaped grooves (15) and the second arc-shaped grooves (16) correspond to each other one by one and are matched with the steel balls (13).

4. The industrial angle iron of claim 2, wherein: the groove depths of the first positioning groove (11) and the second positioning groove (21) are gradually decreased outwards in sequence by taking the rotating points of the first fixing plate (1) and the second fixing plate (2) as centers; the inclination angles of the first positioning groove (11) and the second positioning groove (21) relative to the corresponding plate surfaces of the first fixing plate (1) and the second fixing plate (2) are sequentially increased.

5. The industrial angle iron of claim 1, wherein: a holding plate (34) is arranged outside the adjusting ring (33); the number of the holding plates (34) is two, and the holding plates are uniformly arranged by taking the central line of the adjusting support (3) as the center; compression springs (35) which are uniformly arranged are arranged between the two holding plates (34) and the adjusting ring (33); a guide post (36) is arranged at the center of the two holding plates (34); guide grooves (37) are formed in the positions, located on the guide columns (36), of the adjusting rings (33); the guide columns (36) are connected to the corresponding guide grooves (37) in a sliding manner; the side surfaces of the left side and the right side of the holding plate (34) are hinged with connecting rods (38); sliding grooves (39) are formed in the middle positions of the connecting rods (38); the adjusting ring (33) is provided with a support (310) at the position of the sliding groove (39), and the support (310) is connected with the sliding groove (39) to realize the rotation and the sliding between the connecting rod (38) and the adjusting ring (33); the other ends of the connecting rods (38) are fixedly connected with positioning blocks (311).

6. The industrial angle iron of claim 5, wherein: the side surfaces of the positioning blocks (311) close to the corresponding first support column (31) and one side surface of the corresponding second support column (32) are both provided with threads; the threads on the positioning block (311) are matched with the threads on the corresponding first support column (31) and the corresponding second support column (32), and the thread surface on the positioning block (311) is designed to be a rough surface.

Technical Field

The invention belongs to the technical field of fixed accessories, and particularly relates to an industrial angle iron.

background

The angle iron is commonly called angle iron, is a long-strip steel with two perpendicular sides forming an angle, has equal angle iron and unequal angle iron, has equal side width, is mainly used for manufacturing frame structures, such as a high-voltage transmission tower, frames on two sides of a steel structure bridge girder, upright columns and armed levers of a tower crane on a construction site, upright columns and beams of a workshop and the like, and is used for manufacturing small places such as a shelf for passing a section of roadside flowerpot modeling, a shelf for hanging air-conditioning solar energy under a window and the like.

The angle bar that uses at present generally comprises riser and diaphragm to fix relevant equipment, but lack the fixed module between riser and the diaphragm, shorten the life of angle bar like this, the indirect stability that is influenced by fixed equipment.

Disclosure of Invention

The invention provides an industrial angle iron, aiming at making up the defects of the prior art and solving the problems of resource waste and the like caused by insufficient strength, lower use freedom, limited application conditions and lower recovery value of the angle iron in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an industrial angle iron which comprises a first fixing plate, a second fixing plate and an adjusting support; the first fixing plate is rotatably connected with a second fixing plate, and rotating points are located at the end parts of the first fixing plate and the second fixing plate; the surface of the first fixing plate is provided with first positioning grooves which are uniformly distributed; the surfaces of the second fixing plates are provided with second positioning grooves which are arranged; the number of the first positioning grooves and the number of the second positioning grooves are four, and the first positioning grooves and the second positioning grooves are distributed in a straight line shape; the first positioning groove and the second positioning groove are symmetrically arranged by taking the symmetrical center lines of the first fixing plate and the second fixing plate as centers; the first positioning groove and the corresponding second positioning groove are internally inserted with an adjusting strut; the adjusting strut comprises a first strut and a second strut; the first support column is connected with the second support column in a sliding mode; an adjusting ring is sleeved on the outer surface of the sliding connection part of the first strut and the second strut; the outer surfaces of the first support column and the second support column at the position of the adjusting ring are both provided with threads, and the directions of the threads are opposite; the inner surface of the adjusting ring is provided with threads; the adjusting ring is in threaded connection with the first support and the second support respectively to realize the relative and back-to-back movement of the first support (31) and the second support (32); when the angle iron is in use, a user can roughly judge the angle of the environment in which the angle iron is to be used, according to different use angle requirements, the angle can be roughly adjusted by inserting the adjusting strut into different first positioning grooves and corresponding second positioning grooves to achieve the purpose of angle coarse adjustment, so that the included angle between the first fixing plate and the second fixing plate is positioned near the angle of the application environment, the farther the first positioning groove into which the adjusting strut is inserted and the corresponding second positioning groove are away from the rotating point, the smaller the applied angle is, then the first fixing plate is fixedly connected onto the mounting surface through the fastening piece, and then the adjusting ring is screwed manually to enable the first strut and the second strut to move relatively or relatively, so as to achieve the increase or reduction of the length of the adjusting strut, further achieve the fine adjustment of the angles of the first fixing plate and the second fixing plate, and achieve the purpose that the second fixing plate reaches the required angle position, insert different first constant head tank and the second constant head tank that corresponds through above regulation pillar, realize the quick great adjustment of angle bar angle, it is convenient simple, not restricted by the environment, and adjust the pillar, the triangle-shaped structure that forms between first fixed plate and the second fixed plate is more stable, it is difficult for producing stress deformation phenomenon because of stress concentration, prevent when the angle bar receives great effort, produce serious consequences such as inside crack damage fracture even fracture easily, the while adjustable ring fine adjustment, can satisfy special conditions such as installation needs or use fine setting, especially in the user use, angular deviation appears, the fine setting of adjustable ring, can reduce because of the produced higher human cost of whole dismantlements.

preferably, the first positioning groove and the second positioning groove are both internally provided with a first air bag; the first air bag is internally wrapped with steel balls which are uniformly arranged; the outer parts of the first air bags are fixedly connected with second air bags; the first air bag and the second air bag are communicated at the bottom positions of the first positioning groove and the second positioning groove; when the adjustable support is in work, when the two ends of the adjustable support are respectively inserted into the first positioning groove and the second positioning groove, the second air bag in the first positioning groove and the second positioning groove is extruded, so that the gas in the second air bag enters the first air bag through the communicating channel, the internal pressure of the first air bag is increased after the first air bag receives the gas, meanwhile, the first air bag is extruded at the side edges of the first positioning groove and the second positioning groove to form the expansion ball due to the extrusion of the first air bag, further, partial steel balls in the first air bag enter the expansion ball, the expansion ball can be formed at the side edges of the first positioning groove and the second positioning groove in the installation process of the adjustable support by arranging the first air bag and the steel balls, when the adjustable ring is finely adjusted, the adjustable support is respectively rotated with the first positioning groove and the second positioning groove, and the expansion ball can play a limiting role, the adjusting support is prevented from falling off from the first positioning groove and the second positioning groove, and the steel balls can move towards the same direction by arranging the second air bag and finally enter the expansion ball.

Preferably, first arc-shaped grooves are uniformly arranged in the first positioning groove and the second positioning groove; the two ends of the adjusting strut are both provided with second arc-shaped grooves which are uniformly distributed; the first arc-shaped grooves correspond to the second arc-shaped grooves one by one and are matched with the steel balls; the during operation, in the rotation process between regulation pillar and first constant head tank and the second constant head tank, the steel ball does not have spacing extrusion each other easily, lead to the steel ball cracked, the steel ball easily sideslips simultaneously and influences the rotation effect, through set up evenly arranged first arc wall in first constant head tank and second constant head tank, set up evenly arranged's second arc wall in the regulation pillar both ends head, make the steel ball spacing at first arc wall and second arc wall internal rotation, avoided extrusion between the steel ball and gnawing and sting, further spacing to the regulation pillar, can prevent that the steel ball from sideslipping simultaneously, improve rotation effect and life.

Preferably, the groove depths of the first positioning groove and the second positioning groove are gradually decreased outwards in sequence by taking the rotating points of the first fixing plate and the second fixing plate as centers; the inclination angles of the first positioning groove and the second positioning groove relative to the corresponding plate surfaces of the first fixing plate and the second fixing plate are sequentially increased in an increasing manner; the during operation, because the first constant head tank of different positions is different with the second constant head tank service environment angle that corresponds, consequently first constant head tank and second constant head tank carry out corresponding change for the inclination of the face of corresponding first fixed plate and second fixed plate in proper order, with the needs that are applicable to different environment angles, the groove depth of first constant head tank and second constant head tank uses the turning point of first fixed plate and second fixed plate to outwards progressively decrease as the center simultaneously, it is relatively poor because inclination problem installation firm type to prevent to be close to the regulation pillar of turning point position.

Preferably, a holding plate is arranged outside the adjusting ring; the number of the holding plates is two, and the holding plates are uniformly arranged by taking the center line of the adjusting support as the center; compression springs which are uniformly arranged are arranged between the two holding plates and the adjusting ring; the center positions of the two holding plates are provided with guide posts; the adjusting ring is provided with guide grooves at the positions of the guide posts; the guide posts are all connected with the corresponding guide grooves in a sliding manner; the side surfaces of the left side and the right side of the holding plate are hinged with connecting rods; sliding grooves are formed in the middle positions of the connecting rods; the adjusting ring is provided with a support at the position of the sliding groove, and the support is connected with the sliding groove to realize the rotation and the sliding between the connecting rod and the adjusting ring; the other end of each connecting rod is fixedly connected with a positioning block; when the utility model works, when the holding plate is held by the worker to rotate and adjust, the holding plate can generate extrusion force to the holding plate, so that the holding plate compresses the compression spring, and the holding plate moves towards the axis, then the holding plate drives the connecting rod to rotate, the connecting rod rotates to enable the positioning block to be separated from the first supporting column and the second supporting column, the holding plate can drive the adjusting ring to rotate so as to achieve the purpose of fine adjustment of the adjusting support, when the angle is adjusted to the required environment angle, the holding plate is released by the operator, the holding plate is jacked outwards by the compression spring, the positioning block is fixedly attached to the first support column and the second support column again, can effectively reduce the influence of environmental change on the adjusting strut, so that the length of the adjusting strut is kept stable and unchanged, and then guaranteed that the angle between first fixed plate and the second fixed plate of this angle bar is unchangeable, improve the angle bar and use the quality, prevent to produce serious use accident because of the stability of angle bar.

Preferably, the side surfaces of the positioning blocks, which are close to the corresponding first support column and the corresponding second support column, are both provided with threads; the threads on the positioning block are matched with the threads on the corresponding first support and the second support, and the thread surface on the positioning block is designed to be a rough surface; during operation, the locating piece is because need cooperate fixedly with the screw thread of first pillar and second pillar one side, consequently through seting up the screw thread on the locating piece for the locating piece increases with the area of contact of first pillar and second pillar respectively, and then very big improvement coefficient of friction, and the locating piece screw thread carries out the matte design simultaneously, further improves the frictional force between locating piece and first pillar and the second pillar, has greatly improved the limiting displacement of locating piece.

The invention has the following beneficial effects:

1. The industrial angle iron of the invention realizes rapid and large adjustment of the angle iron by arranging the first fixing plate, the second fixing plate and the adjusting support column, respectively arranging the first positioning groove and the second positioning groove in the first fixing plate and the second fixing plate, and inserting the adjusting support column in the first positioning groove and the corresponding second positioning groove, is convenient and simple, is not limited by environment, is more stable in a triangular structure formed among the adjusting support column, the first fixing plate and the second fixing plate, is not easy to generate stress deformation phenomenon due to stress concentration, prevents serious consequences such as internal crack damage and even fracture when the angle iron is subjected to large acting force, can meet special conditions such as installation requirements or fine adjustment during use, particularly angle deviation and fine adjustment of the adjusting ring when a user uses the angle iron, the higher labor cost caused by the complete disassembly can be reduced.

2. According to the industrial angle iron, the holding plate, the connecting rod and the positioning block are arranged, when the required environment angle is adjusted, a worker loosens the holding plate, the positioning block can be attached and fixed with the first supporting column and the second supporting column through rotation of the connecting rod, the influence of environment change on the adjusting supporting column can be effectively reduced, the length of the adjusting supporting column is kept stable and unchanged, the angle between the first fixing plate and the second fixing plate of the angle iron is further guaranteed to be unchanged, the use quality of the angle iron is improved, and serious use accidents caused by the stability of the angle iron are prevented.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention with a 70 degree angle between the first and second mounting plates;

FIG. 3 is a cross-sectional view of the first and second mounting plates of the present invention at a 90 angle therebetween;

FIG. 4 is a component view of the adjustment brace of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

In the figure: the air bag fixing device comprises a first fixing plate 1, a first positioning groove 11, a first air bag 12, steel balls 13, a second air bag 14, a first arc-shaped groove 15, a second arc-shaped groove 16, a second fixing plate 2, a second positioning groove 21, an adjusting support 3, a first support 31, a second support 32, an adjusting ring 33, a holding plate 34, a compression spring 35, a guide post 36, a guide groove 37, a connecting rod 38, a sliding groove 39, a support 310 and a positioning block 311.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the industrial angle iron of the present invention comprises a first fixing plate 1, a second fixing plate 2 and an adjusting support 3; the first fixing plate 1 is rotatably connected with a second fixing plate 2, and rotating points are located at the end parts of the first fixing plate 1 and the second fixing plate 2; the surface of the first fixing plate 1 is provided with first positioning grooves 11 which are uniformly distributed; the surface of the second fixing plate 2 is provided with second positioning grooves 21 which are all arranged; the number of the first positioning grooves 11 and the number of the second positioning grooves 21 are four, and the first positioning grooves and the second positioning grooves are distributed in a straight line shape; the first positioning groove 11 and the second positioning groove 21 are symmetrically arranged by taking the symmetrical center lines of the first fixing plate 1 and the second fixing plate 2 as centers; the first positioning groove 11 and the corresponding second positioning groove 21 are internally inserted with an adjusting strut 3; the adjusting strut 3 comprises a first strut 31 and a second strut 32; the first support 31 is connected with the second support 32 in a sliding manner; an adjusting ring 33 is sleeved on the outer surface of the sliding connection part of the first strut 31 and the second strut 32; the outer surfaces of the first pillar 31 and the second pillar 32 at the position of the adjusting ring 33 are both provided with threads, and the thread directions are opposite; the inner surface of the adjusting ring 33 is provided with threads; the adjusting ring 33 is respectively in threaded connection with the first strut 31 and the second strut 32, so that the first strut 31 and the second strut 32 can move oppositely and oppositely; when the angle iron works, when the angle iron needs to be used, a user can roughly judge the angle size of the environment where the angle iron needs to be used, according to different use angle requirements, the angle coarse adjustment can be achieved by inserting the adjusting support 3 into different first positioning grooves 11 and corresponding second positioning grooves 21, so that the included angle between the first fixing plate 1 and the second fixing plate 2 is located near the application environment angle, the farther the first positioning groove 11 into which the adjusting support 3 is inserted and the corresponding second positioning groove 21 are from the rotating point, the smaller the applied angle is, then the first fixing plate 1 is fixedly connected to the mounting surface through a fastener, then the manual screwing adjusting ring 33 is used, so that the first support 31 and the second support 32 move relatively or oppositely, so as to realize the increase or reduction of the length of the adjusting support 3, and further achieve the fine adjustment of the angle of the first fixing plate 1 and the second fixing plate 2, realize that second fixed plate 2 reaches required angular position, insert different first constant head tank 11 and the second constant head tank 21 that corresponds through above regulation pillar 3, realize the quick great adjustment of angle bar angle, it is convenient simple, not restricted by the environment, and adjust pillar 3, the triangle-shaped structure that forms between first fixed plate 1 and the second fixed plate 2 is more stable, it is difficult for producing stress deformation phenomenon because of stress concentration, prevent when the angle bar receives great effort, produce serious consequences such as inside crack damage or even fracture easily, adjustable ring 33 fine adjustment simultaneously, can satisfy installation needs or use special circumstances such as fine setting, especially in the user use, angular deviation appears, the fine setting of adjustable ring 33, can reduce because of the produced higher human cost of whole dismantlements.

As an embodiment of the present invention, the first positioning groove 11 and the second positioning groove 21 are both provided with the first airbag 12 therein; the first air bag 12 is internally wrapped with steel balls 13 which are uniformly arranged; the exterior of the first air bag 12 is fixedly connected with a second air bag 14; the first air bag 12 and the second air bag 14 are communicated at the bottom positions of the first positioning groove 11 and the second positioning groove 21; when the adjusting support column works, when the two ends of the adjusting support column 3 are respectively inserted into the first positioning groove 11 and the second positioning groove 21, the second air bag 14 in the first positioning groove 11 and the second positioning groove 21 is extruded, so that the gas in the second air bag 14 enters the first air bag 12 through the communicating channel, the first air bag 12 receives the gas to increase the internal pressure, meanwhile, the first air bag 12 is extruded at the side edges of the first positioning groove 11 and the second positioning groove 21 to form an expansion ball due to the extrusion of the first air bag 12, further, part of the steel balls 13 in the first air bag 12 enter the expansion ball, the expansion ball is formed at the side edges of the first positioning groove 11 and the second positioning groove 21 in the installation process of the adjusting support column 3 by arranging the first air bag 12 and the steel balls 13, the rotation between the adjusting support column 3 and the first positioning groove 11 and the second positioning groove 21 is realized in the fine adjustment process of the adjusting ring 33, meanwhile, the expansion ball can play a limiting role, the adjusting support column 3 is prevented from falling off from the first positioning groove 11 and the second positioning groove 21, and the steel ball 13 can move towards the same direction through the second air bag 14 and finally enters the expansion ball.

As an embodiment of the present invention, the first positioning slot 11 and the second positioning slot 21 are both provided with first arc-shaped slots 15 uniformly arranged therein; the two ends of the adjusting strut 3 are both provided with second arc-shaped grooves 16 which are uniformly distributed; the first arc-shaped grooves 15 correspond to the second arc-shaped grooves 16 one by one and are matched with the steel balls 13; during operation, in the rotation process between regulation pillar 3 and first constant head tank 11 and second constant head tank 21, steel ball 13 does not have spacing extrusion each other easily, lead to steel ball 13 cracked, steel ball 13 easily sideslips simultaneously and influences the rotation effect, through setting up evenly arranged first arc wall 15 in first constant head tank 11 and second constant head tank 21, adjust pillar both ends head and set up evenly arranged second arc wall 16, make steel ball 13 spacing rotate between first arc wall 15 and second arc wall 16, avoided extrusion and gnawing between the steel ball 13 and sting, it is further spacing to carry out to regulation pillar 3, can prevent steel ball 13 from sideslipping simultaneously, improve rotation effect and life.

As an embodiment of the present invention, the groove depths of the first positioning groove 11 and the second positioning groove 21 decrease outward in sequence with the rotation points of the first fixing plate 1 and the second fixing plate 2 as the center; the inclination angles of the first positioning groove 11 and the second positioning groove 21 relative to the corresponding plate surfaces of the first fixing plate 1 and the second fixing plate 2 are sequentially increased; the during operation, because the first constant head tank 11 of different positions is different with the second constant head tank 21 service environment angle that corresponds, consequently first constant head tank 11 and second constant head tank 21 carry out corresponding change for the inclination of the face of corresponding first fixed plate 1 and second fixed plate 2 in proper order, with the needs that are applicable to different environment angles, the groove depth of first constant head tank 11 and second constant head tank 21 uses the turning point of first fixed plate 1 and second fixed plate 2 to outwards progressively decrease as the center simultaneously, it is relatively poor because inclination problem installation firmness type to prevent to be close to the regulation pillar 3 of turning point position.

As an embodiment of the present invention, the adjusting ring 33 is externally provided with a grip plate 34; the number of the holding plates 34 is two, and the holding plates are uniformly arranged by taking the center line of the adjusting support 3 as the center; compression springs 35 which are uniformly arranged are arranged between the two holding plates 34 and the adjusting ring 33; a guide post 36 is arranged at the center of the two holding plates 34; the adjusting ring 33 is provided with guide grooves 37 at the positions of the guide posts 36; the guide posts 36 are all connected with the corresponding guide grooves 37 in a sliding manner; the left side surface and the right side surface of the holding plate 34 are both hinged with a connecting rod 38; sliding grooves 39 are formed in the middle of the connecting rods 38; the adjusting ring 33 is provided with a support 310 at the position of the sliding groove 39, and the support 310 is connected with the sliding groove 39 to realize the rotation and the sliding between the connecting rod 38 and the adjusting ring 33; the other ends of the connecting rods 38 are fixedly connected with positioning blocks 311; when the angle iron works, when a worker holds the holding plate 34 to rotate and adjust, extrusion force is generated on the holding plate 34, the holding plate 34 compresses the compression spring 35, the holding plate 34 moves towards the axis, then the holding plate 34 rotates by driving the connecting rod 38, the connecting rod 38 rotates to enable the positioning block 311 to be separated from the first pillar 31 and the second pillar 32, and then the holding plate 34 can drive the adjusting ring 33 to rotate, so that the purpose of fine adjustment of the adjusting pillar 3 is achieved, when a required environment angle is adjusted, the worker loosens the holding plate 34, at the moment, the compression spring 35 jacks up the holding plate 34 outwards, the positioning block 311 is attached and fixed with the first pillar 31 and the second pillar 32 again, the influence of environment change on the adjusting pillar 3 can be effectively reduced, the length of the adjusting pillar 3 is kept stable and unchanged, and the angle between the first fixing plate 1 and the second fixing plate 2 of the angle iron is further ensured, the use quality of the angle iron is improved, and serious use accidents caused by the stability of the angle iron are prevented.

As an embodiment of the present invention, the positioning block 311 is threaded on both sides of the corresponding first pillar 31 and second pillar 32; the threads on the positioning block 311 are matched with the threads on the corresponding first pillar 31 and second pillar 32, and the thread surface on the positioning block 311 is designed to be a rough surface; during operation, the locating piece 311 is fixed with the screw thread of first pillar 31 and second pillar 32 one side because need cooperate, consequently through seting up the screw thread on locating piece 311 for the area of contact of locating piece 311 with first pillar 31 and second pillar 32 respectively increases, and then very big improvement coefficient of friction, locating piece 311 helicoid carries out the matte design simultaneously, further improve the frictional force between locating piece 311 and first pillar 31 and second pillar 32, greatly improved locating piece 311's limiting displacement.

the specific working process is as follows:

when the angle iron works, when the angle iron needs to be used, a user can roughly judge the angle size of the environment where the angle iron needs to be used, according to different use angle requirements, the angle coarse adjustment can be achieved by inserting the adjusting support 3 into different first positioning grooves 11 and corresponding second positioning grooves 21, so that the included angle between the first fixing plate 1 and the second fixing plate 2 is located near the application environment angle, the farther the first positioning groove 11 into which the adjusting support 3 is inserted and the corresponding second positioning groove 21 are from the rotating point, the smaller the applied angle is, then the first fixing plate 1 is fixedly connected to the mounting surface through a fastener, then the manual screwing adjusting ring 33 is used, so that the first support 31 and the second support 32 move relatively or oppositely, so as to realize the increase or reduction of the length of the adjusting support 3, and further achieve the fine adjustment of the angle of the first fixing plate 1 and the second fixing plate 2, when the two ends of the adjusting strut 3 are respectively inserted into the first positioning groove 11 and the second positioning groove 21, the second airbag 14 in the first positioning groove 11 and the second positioning groove 21 is squeezed, so that the gas in the second airbag 14 enters the first airbag 12 through the communicating channel, the first airbag 12 receives the gas to increase the internal pressure, and meanwhile, because the first airbag 12 is also squeezed, the first airbag 12 is squeezed out at the side edges of the first positioning groove 11 and the second positioning groove 21 to form an expansion ball, so that part of the steel balls 13 in the first airbag 12 enter the expansion ball, when a worker holds the holding plate 34 to rotate and adjust, the holding plate 34 generates squeezing force on the holding plate 34, and then the holding plate 34 compresses the compression spring 35, and further moves towards the axis, and then the holding plate 34 rotates through the driving connecting rod 38, the rotation of the connecting rod 38 can separate the positioning block 311 from the first support column 31 and the second support column 32, and the holding plate 34 can drive the adjusting ring 33 to rotate, so as to achieve the purpose of fine adjustment of the adjusting support column 3, when the required environment angle is adjusted, the worker releases the holding plate 34, the compression spring 35 jacks up the holding plate 34 outwards, and the positioning block 311 is attached and fixed to the first support column 31 and the second support column 32 again.

while there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.