Span-adjustable high-strength steel structure

Abstract

The utility model relates to the technical field of steel structures, in particular to a span-adjustable high-strength steel structure which comprises crossing arms and an adjusting assembly, the adjusting assembly comprises two sets of sliding sleeves and adjusting arms, the sides, away from openings, of the two sets of sliding sleeves are fixedly connected with the two sets of crossing arms respectively, and the two ends of the adjusting arms are matched with the two sets of adjacent sliding sleeves in a sliding mode respectively. A plurality of groups of supporting plates are arranged on the upper side of the adjusting arm, the plurality of groups of supporting plates are arranged along the sliding direction of the adjusting arm, and a first telescopic assembly is arranged between the supporting plates and the adjusting arm. The supporting plate located at the exposed portion is controlled by the first telescopic assembly to move to the position coplanar and flush with the crossing arm, the supporting plate and the crossing arm can be matched with each other to bear force together, when the span of the steel structure is increased, the stress area is increased along with the span, and bearing of the steel structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure technical field, concretely is a high strength steel structure of adjustable span. BACKGROUND

[0002] In the Chinese patent with the announcement number CN218028179U discloses a kind of steel structure of adjustable span convenient to lift, including main column and vice column subassembly, the inner wall of the main column is provided with the adjusting assembly for adjusting height, and adjusting assembly includes bearing, outer hexagonal screw rod, limit ring and cup head bolt, the outside of the bearing is provided with outer hexagonal screw rod, and the outside of outer hexagonal screw rod is fixed with limit ring, the side of the limit ring is provided with cup head bolt, for telescopic the vice column subassembly is installed in the outside of adjusting assembly.This steel structure of adjustable span convenient to lift, compared with the existing ordinary steel structure, outer hexagonal screw rod can be rotated along main column by bearing, after cup head bolt is twisted to separate limit ring, outer hexagonal screw rod is twisted to rotate, in turn, four square rods slide up and down along the inner wall of main column, to realize lifting, can be accurately adjusted height based on scale line on four square rods, so that the steel structure has lifting structure, and adjustment mode is more convenient.The existing span-adjustable steel structure span-adjusting position is mostly only through the horizontal arm lever sliding extension horizontal arm sleeve by matching with each other sliding, so that steel structure transverse span is extended.In order to make horizontal arm lever can slide into horizontal arm sleeve, horizontal arm lever outer diameter is less than steel structure outer diameter, leading to horizontal arm lever extension position is not conducive to contact with bearing structure, leading to steel structure span extension but bearing area is not increased, not conducive to the steel structure bearing of span extension.

[0003] Therefore, the utility model designs a kind of high strength steel structure of adjustable span to solve the problem. UTILITY MODEL CONTENTS

[0004] The utility model is aimed at providing a kind of high strength steel structure of adjustable span to solve the above technical problems.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A high-strength steel structure with adjustable span, comprising cross arms and an adjusting assembly, the adjusting assembly is arranged between the two groups of cross arms, the adjusting assembly comprises two groups of sliding sleeves and adjusting arms, the two groups of sliding sleeves are respectively fixedly connected with the two groups of cross arms away from the opening side, the sliding sleeve opening is arranged towards the adjacent sliding sleeve, the two ends of the adjusting arm are respectively slidably matched with the two groups of adjacent sliding sleeves, a control assembly is arranged between the adjusting arm and the sliding sleeve inner wall, the control assembly controls the sliding of the adjusting arm in the sliding sleeve, a plurality of support plates are arranged on the upper side of the adjusting arm, the plurality of support plates are arranged along the sliding direction of the adjusting arm, a first telescopic assembly is arranged between the support plate and the adjusting arm, the first telescopic assembly drives the support plate to move away from the adjusting arm, the support plate exposed outside the sliding sleeve moves to the position of being flush with the top outer wall of the sliding sleeve, and the support plate and the sliding sleeve are jointly stressed, by arranging the support plate on the adjusting arm, the support plate is driven by the first telescopic assembly to move towards the outer wall of the cross arm, so that the support plate exposed on the adjusting arm outside the sliding sleeve moves to the position of being flush with the cross arm under the control of the first telescopic assembly, which is beneficial to the joint stress of the support plate and the cross arm, so that when the span of the steel structure increases, the stress area increases, and the load bearing of the steel structure is ensured. The first telescopic assembly can be made of an electric telescopic rod.

[0006] Further, a connecting block is arranged in the middle of the adjusting arm, the opposite sides of the connecting block are respectively abutted and matched with the two groups of sliding sleeves, a first clamping groove is arranged on the side of the connecting block close to the sliding sleeve, and a clamping block matched with the first clamping groove is arranged on the end wall of the sliding sleeve.

[0007] By arranging the connecting block in the middle of the adjusting arm, the sliding sleeve and the connecting block are abutted and matched when the adjusting assembly is completely contracted, and the sliding sleeve is positioned by being clamped and matched with the first clamping groove and the clamping block, so that the two groups of sliding sleeves are not directly abutted, and misalignment is avoided, and the two groups of sliding sleeves on the two sides of the adjusting arm do not need to be distinguished when the first clamping groove and the first clamping block are arranged.

[0008] Further, a plurality of clamping blocks are arranged on the side of the plurality of support plates close to the connecting block, and a plurality of first clamping grooves are arranged on the side of the plurality of support plates away from the connecting block, and the plurality of clamping blocks are respectively clamped and matched with the adjacent first clamping grooves.

[0009] By adopting the above technical scheme, the opposite sides of the support plate are respectively provided with the same first clamping groove and clamping block as arranged on the sliding sleeve and the connecting block, so that when the support plate is moved to be flush with the outer surface of the cross arm, the support plate is positioned by being clamped and matched with the connecting block and the sliding sleeve through the first clamping groove and the clamping block.

[0010] Further, the adjusting arm is provided with a first embedding groove, and a plurality of support plates are slidingly embedded in the first embedding groove.

[0011] By adopting the above technical scheme, the support plate is slidingly arranged in the embedding groove, and when the adjusting arm is not extended out of the sliding sleeve, the support plate and the adjusting arm are matched with each other on one side of the first embedding groove and are matched with each other and abutted against the inner wall of the sliding sleeve, which is beneficial to the common force bearing of the support plate and the adjusting arm.

[0012] Further, the first embedding groove is provided with a second clamping groove on one side close to the connecting block, and the clamping block arranged on the support plate is clamped and matched with the second clamping groove.

[0013] By adopting the above technical scheme, the first embedding groove is provided with the second clamping groove on one side close to the connecting block, and the second clamping groove is clamped and matched with the clamping block, which is beneficial to the movement of the support plate into the second embedding groove and avoids the hindering of the clamping block.

[0014] Further, the adjusting arm is provided with a second sliding groove on one side away from the support plate, and the sliding sleeve is provided with a sliding plate at an opening, and the sliding plate is slidingly matched with the second sliding groove.

[0015] By adopting the above technical scheme, the second sliding groove and the sliding plate are arranged between the sliding sleeve and the adjusting arm, which is beneficial to the movement limitation of the adjusting arm in the sliding sleeve and ensures the horizontal state of the adjusting arm during sliding adjustment.

[0016] Further, the control assembly is made of a bidirectional screw rod, the control assembly is rotatably arranged in the second sliding groove, and the control assembly is threadedly connected with the two groups of sliding plates at two ends respectively.

[0017] By adopting the above technical scheme, the control assembly is made of a bidirectional screw rod and is rotatably arranged in the second sliding groove, the opposite two ends of the bidirectional screw rod are threadedly connected with the two groups of sliding plates respectively, the control assembly is rotated in the second sliding groove, and the two groups of sliding plates are simultaneously moved in opposite directions along the second sliding groove, which is beneficial to the equal movement distance of the two groups of sliding plates and ensures the consistency of the distance between the two ends of the adjusting arm and the two groups of sliding sleeves during the span change, and is beneficial to the force balance.

[0018] Compared with the prior art, the utility model has the advantages that the support plate is arranged on the adjusting arm, the support plate at the exposed part is moved to the coplanar position with the cross arm under the control of the first telescopic assembly when the adjusting arm is exposed outside the sliding sleeve, the support plate and the cross arm are matched and jointly bear the force, the force bearing area increases with the increase of the steel structure span, and the steel structure bearing capacity is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is the overall structure schematic view of the utility model;

[0021] Figure 2 It is the structure sectional view of the adjusting assembly of the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1-cross arm, 2-adjusting assembly, 21-sliding sleeve, 22-adjusting arm, 23-supporting plate, 24-first telescopic assembly, 25-first embedding slot, 26-second sliding slot, 27-sliding plate, 3-control assembly, 4-connecting block, 41-first clamping slot, 42-clamping block, 43-second clamping slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model protection.

[0025] In combination with Figures 1-2 :

[0026] With reference to Figure 1 , 2As shown, a span adjustable high-strength steel structure includes cross arms 1 and an adjusting assembly 2, the adjusting assembly 2 is arranged between the two groups of cross arms 1, the adjusting assembly 2 includes two groups of sliding sleeves 21 and adjusting arms 22, the two groups of sliding sleeves 21 are respectively fixedly connected with the two groups of cross arms 1 away from the opening side, the opening of the sliding sleeve 21 is arranged towards the adjacent sliding sleeve 21, the two ends of the adjusting arm 22 are respectively slidably matched with the two groups of adjacent sliding sleeves 21, the control assembly 3 is arranged between the adjusting arm 22 and the inner wall of the sliding sleeve 21, the control assembly 3 controls the sliding of the adjusting arm 22 in the sliding sleeve 21, a plurality of support plates 23 are arranged on the upper side of the adjusting arm 22, the plurality of support plates 23 are arranged along the sliding direction of the adjusting arm 22, the first telescopic assembly 24 is arranged between the support plate 23 and the adjusting arm 22, the first telescopic assembly 24 drives the support plate 23 to move away from the adjusting arm 22, the support plate 23 exposed outside the sliding sleeve 21 is moved to the position of being flush with the outer wall of the sliding sleeve 21, and the support plate 23 and the sliding sleeve 21 are mutually matched to bear force together. By arranging the support plate 23 on the adjusting arm 22, the support plate 23 is driven to move towards the outer wall of the cross arm 1 by the first telescopic assembly 24, so that the support plate 23 exposed on the outside of the sliding sleeve 21 is moved to the position of being flush with the cross arm 1 under the control of the first telescopic assembly 24, which is beneficial to the support plate 23 and the cross arm 1 to bear force together, so that when the span of the steel structure increases, the stress area increases, which is beneficial to ensure the load bearing of the steel structure. The first telescopic assembly 24 can be made of an electric telescopic rod.

[0027] Referring to Figure 1 , 2As shown, the middle of the adjusting arm 22 is provided with a connecting block 4, the opposite sides of the connecting block 4 are respectively matched with the two groups of sliding sleeves 21, the connecting block 4 is provided with a first clamping groove 41 on the side close to the sliding sleeve 21, and the end wall of the sliding sleeve 21 is provided with a clamping block 42 matched with the first clamping groove 41. The side of the plurality of support plates 23 close to the connecting block 4 is respectively provided with a plurality of clamping blocks 42, and the side of the support plate 23 away from the connecting block 4 is respectively provided with a plurality of first clamping grooves 41, and the plurality of clamping blocks 42 are respectively matched with the adjacent first clamping grooves 41. The adjusting arm 22 is provided with a first embedding groove 25, and the plurality of support plates 23 are slidably embedded in the first embedding groove 25. The side of the first embedding groove 25 close to the connecting block 4 is provided with a second clamping groove 43, and the clamping block 42 provided on the support plate 23 is matched with the second clamping groove 43. By arranging the connecting block 4 in the middle of the adjusting arm 22, the sliding sleeve 21 and the connecting block 4 are matched with each other when the adjusting assembly 2 is completely retracted, and the sliding sleeve 21 is positioned by the first clamping groove 41 and the clamping block 42 matched with each other, which is beneficial to avoid the direct mutual abutment of the two groups of sliding sleeves 21, and is easy to produce misalignment, and when the first clamping groove 41 and the first clamping block 42 are arranged, the two groups of sliding sleeves 21 on the two sides of the adjusting arm 22 do not need to be distinguished. The opposite sides of the support plate 23 are respectively provided with the same first clamping groove 41 and clamping block 42 as arranged on the sliding sleeve 21 and the connecting block 4, which is beneficial to the support plate 23 moving to be flush with the outer surface of the cross arm 1, and the support plate 23 is positioned by the first clamping groove 41 and the clamping block 42 matched with the connecting block 4 and the sliding sleeve 21. The support plate 23 is slidably arranged in the embedding groove, and when the adjusting arm 22 is not extended into the sliding sleeve 21, the support plate 23 is matched with the side of the first embedding groove 25 of the adjusting arm 22 and is matched with the inner wall of the sliding sleeve 21, which is beneficial to the support plate 23 and the adjusting arm 22 being stressed together. The side of the first embedding groove 25 close to the connecting block 4 is provided with a second clamping groove 43, and the second clamping groove 43 and the clamping block 42 are matched with each other, which is beneficial to the support plate 23 moving into the second embedding groove and avoiding being hindered by the clamping block 42.

[0028] Referring to Figure 1 , 2As shown, the second sliding groove 26 is arranged on the side of the adjusting arm 22 away from the support plate 23, the sliding sleeve 21 is provided with a sliding plate 27, and the sliding plate 27 and the second sliding groove 26 are matched with each other in sliding mode. The control assembly 3 is made of a bidirectional screw rod, the control assembly 3 is arranged in the second sliding groove 26 in a rotating mode, and the two ends of the control assembly 3 are respectively connected with the two groups of sliding plates 27 in a threaded mode. By arranging the second sliding groove and the sliding plate between the sliding sleeve and the adjusting arm, the movement of the adjusting arm in the sliding sleeve is limited, and the horizontal state of the adjusting arm during sliding adjustment is ensured. The control assembly is made of a bidirectional screw rod and is arranged in the second sliding groove in a rotating mode. The opposite two ends of the bidirectional screw rod are arranged in opposite threaded modes and are respectively connected with the two groups of sliding plates in a threaded mode. When the control assembly rotates in the second sliding groove, the two groups of sliding plates are simultaneously moved along the second sliding groove in opposite directions, which is beneficial to keeping the movement distances of the two groups of sliding plates equal, ensuring that the distances between the two ends of the adjusting arm and the two groups of sliding sleeves remain consistent when the span is changed, and is beneficial to balancing the stress. By arranging the second sliding groove 26 and the sliding plate 27 between the sliding sleeve 21 and the adjusting arm 22, the movement of the adjusting arm 22 in the sliding sleeve 21 is limited, and the horizontal state of the adjusting arm 22 during sliding adjustment is ensured. The control assembly 3 is made of a bidirectional screw rod and is arranged in the second sliding groove 26 in a rotating mode. The opposite two ends of the bidirectional screw rod are arranged in opposite threaded modes and are respectively connected with the two groups of sliding plates 27 in a threaded mode. When the control assembly 3 rotates in the second sliding groove 26, the two groups of sliding plates 27 are simultaneously moved along the second sliding groove 26 in opposite directions, which is beneficial to keeping the movement distances of the two groups of sliding plates 27 equal, ensuring that the distances between the two ends of the adjusting arm 22 and the two groups of sliding sleeves 21 remain consistent when the span is changed, and is beneficial to balancing the stress.

[0029] The utility model discloses specific application embodiment:

[0030] By setting the support plate 23 on the adjusting arm 22, the support plate 23 is driven to move towards the outer wall direction of the cross arm 1 by the first telescopic assembly 24, so that the support plate 23 exposed on the outside of the sliding sleeve 21 is moved to the position of being flush with the cross arm 1 under the control of the first telescopic assembly 24, which is beneficial to the mutual cooperation of the support plate 23 and the cross arm 1 to bear stress together, so that the stress area increases when the span of the steel structure increases, and the bearing capacity of the steel structure is ensured. The first telescopic assembly 24 can be made of an electric telescopic rod.

[0031] By setting the connecting block 4 in the middle of the adjusting arm 22, the sliding sleeve 21 and the connecting block 4 are matched with each other in abutting mode when the adjusting assembly 2 is completely contracted, and the sliding sleeve 21 is positioned by the mutual clamping matching of the first clamping groove 41 and the clamping block 42, which is beneficial to avoid the direct abutment of the two groups of sliding sleeves 21, which is prone to misalignment, and the two groups of sliding sleeves 21 on both sides of the adjusting arm 22 do not need to be distinguished when the first clamping groove 41 and the first clamping block 42 are arranged.

[0032] The opposite sides of the support plate 23 are respectively provided with the same first clamping groove 41 and clamping block 42 as those provided on the sliding sleeve 21 and the connecting block 4, which is beneficial to the movement of the support plate 23 to be flush with the outer surface of the transverse arm 1, and the support plate 23 is clamped and matched with the connecting block 4 and the sliding sleeve 21 through the first clamping groove 41 and the clamping block 42, so as to position the support plate 23.

[0033] The support plate 23 is slidably arranged in the embedded groove, and when the adjusting arm 22 is not extended out of the sliding sleeve 21, the support plate 23 is matched with one side of the first embedded groove 25 of the adjusting arm 22 and abuts against the inner wall of the sliding sleeve 21, which is beneficial to the common force bearing of the support plate 23 and the adjusting arm 22.

[0034] The first embedded groove 25 is provided with a second clamping groove 43 near one side of the connecting block 4, which is clamped and matched with the clamping block 42, so as to move the support plate 23 into the second embedded groove and avoid being blocked by the clamping block 42.

[0035] The second sliding groove 26 and the sliding plate 27 are arranged between the sliding sleeve 21 and the adjusting arm 22, which is beneficial to limiting the movement of the adjusting arm 22 in the sliding sleeve 21 and ensuring that the adjusting arm 22 remains horizontal during sliding adjustment.

[0036] The control assembly 3 is a bidirectional screw rod arranged in the second sliding groove 26 and rotates, and the opposite ends of the bidirectional screw rod are respectively threadedly connected with the two groups of sliding plates 27 through the opposite threads, so that when the control assembly 3 rotates in the second sliding groove 26, the two groups of sliding plates 27 are simultaneously moved in opposite directions along the second sliding groove 26, which is beneficial to keeping the moving distances of the two groups of sliding plates 27 equal, ensuring that the distances between the two ends of the adjusting arm 22 and the two groups of sliding sleeves 21 remain consistent during span change, and balancing the stress.

[0037] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0038] In the utility model, unless there is explicit provision and limitation, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the person skilled in the art can understand the specific meaning of the above-mentioned terms in the utility model according to the specific circumstances.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength steel structure with adjustable span, comprising a spanning arm (1) and an adjustment assembly (2), characterized in that: The adjusting assembly (2) is arranged between the two groups of cross arms (1), the adjusting assembly (2) comprises two groups of sliding sleeves (21) and adjusting arms (22), the two groups of sliding sleeves (21) are fixedly connected with the two groups of cross arms (1) respectively away from the opening side, the opening of the sliding sleeve (21) faces the adjacent sliding sleeve (21), the two ends of the adjusting arm (22) are slidably matched with the two groups of adjacent sliding sleeves (21) respectively, the control assembly (3) is arranged between the adjusting arm (22) and the inner wall of the sliding sleeve (21), the control assembly (3) controls the sliding of the adjusting arm (22) in the sliding sleeve (21), a plurality of supporting plates (23) are arranged on the upper side of the adjusting arm (22), a plurality of supporting plates (23) are arranged along the sliding direction of the adjusting arm (22), a first telescopic assembly (24) is arranged between the supporting plate (23) and the adjusting arm (22), the first telescopic assembly (24) drives the supporting plate (23) to move away from the adjusting arm (22), the supporting plate (23) exposed outside the sliding sleeve (21) is moved to the position of the top outer wall of the sliding sleeve (21) coplanar and flush, and the supporting plate (23) and the sliding sleeve (21) are matched and stressed together.

2. The span-adjustable high-strength steel structure according to claim 1, characterized by: The middle of the adjusting arm (22) is provided with a connecting block (4), the opposite sides of the connecting block (4) are respectively matched with the two groups of sliding sleeves (21), and the side close to the sliding sleeve (21) of the connecting block (4) is provided with a first clamping groove (41), and the end wall of the sliding sleeve (21) is provided with a clamping block (42) matched with the first clamping groove (41).

3. The span-adjustable high-strength steel structure according to claim 2, characterized in that: The side close to the connecting block (4) of a plurality of supporting plates (23) is respectively provided with a plurality of clamping blocks (42), and the side away from the connecting block (4) of the supporting plate (23) is respectively provided with a plurality of first clamping grooves (41), and the plurality of clamping blocks (42) are respectively matched with the adjacent first clamping grooves (41).

4. The span-adjustable high-strength steel structure according to claim 3, characterized in that: The first embedding groove (25) is arranged on the adjusting arm (22), and a plurality of supporting plates (23) are slidably embedded in the first embedding groove (25).

5. The span-adjustable high-strength steel structure according to claim 4, characterized in that: The side close to the connecting block (4) of the first embedding groove (25) is provided with a second clamping groove (43), and the clamping block (42) arranged on the supporting plate (23) is matched with the second clamping groove (43).

6. The span-adjustable high-strength steel structure according to claim 1, characterized by: The side away from the supporting plate (23) of the adjusting arm (22) is provided with a second sliding groove (26), and the opening of the sliding sleeve (21) is provided with a sliding plate (27), and the sliding plate (27) is slidably matched with the second sliding groove (26).

7. The span-adjustable high-strength steel structure according to claim 6, characterized in that: The control assembly (3) is made of a bidirectional screw rod, the control assembly (3) is rotatably arranged in the second sliding groove (26), and the two ends of the control assembly (3) are respectively threadedly connected with the two groups of sliding plates (27).

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