Length-adjustable keel structure

Abstract

The utility model relates to the technical field of building construction, in particular to a length-adjustable keel structure. The two L-shaped frameworks are in lap joint, the lap joint length of the two L-shaped frameworks is adjusted, a keel structure with the adjustable length is formed, the two long edges are firmly connected together through the hoop assembly, the bending resistance of the two L-shaped frameworks is greatly improved through the limiting rod, the limiting rod is inserted into the short edge of the other L-shaped framework, and therefore the length of the two L-shaped frameworks can be adjusted. The horizontal position of the limiting rod is limited through the abutting assembly, the limiting rod is prevented from retreating, meanwhile, the stability of the middle position of the limiting rod is improved, the rear end of the limiting rod and the long edge are clamped and fixed through the locking piece, and the stability of the limiting rod is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a length-adjustable keel structure. BACKGROUND

[0002] Keel is a common building material, most of the decoration engineering needs to use keel to build and support house shape, and most of the existing keels are cut according to the site measurement, but sometimes the length of the keel needs to be adjusted at any time according to the construction situation. The utility model patent with patent number "CN221372608U" discloses a telescopic keel support suitable for curtain wall, a plurality of clamping parts are fixed at both ends of the telescopic profile, a plurality of clamping holes are formed on the connecting profile, and different numbers of clamping parts are clamped into the clamping holes during use, the connection position of the two telescopic profiles on the connecting profile is adjusted, the spacing of the two telescopic profiles is adjusted, and the length of the keel support is adjusted; however, the length of the keel of the above structure cannot be flexibly adjusted, and the length or height required for support during actual construction is not increased in multiples according to the spacing of the two clamping holes, so that the length of the keel cannot completely match the construction requirement. SUMMARY

[0003] The utility model aims at solving the problem that the length of the keel of the prior art cannot be flexibly adjusted, so as to provide a keel structure capable of flexibly adjusting the length according to the actual construction requirement.

[0004] The utility model solves the problem by adopting the technical scheme of:

[0005] A length-adjustable keel structure, comprising two L-shaped skeletons, the long edges of the two L-shaped skeletons are overlapped and arranged, and a clamping hoop assembly is arranged at the overlapped position of the two long edges, a limiting rod is movably arranged in the long edge of the two L-shaped skeletons, and the axial direction of the limiting rod is parallel to the length direction of the L-shaped skeleton; a pressing assembly is further arranged at the front part of the limiting rod, the front end of the limiting rod is clamped in the short edge of the other L-shaped skeleton, at this time, the inner end of the pressing assembly is tightly pressed against the inner wall of the long edge of the other L-shaped skeleton, and the rear end of the limiting rod is clamped and fixed in the long edge through a locking piece.

[0006] The utility model adopting the above technical scheme has the beneficial effects compared with the prior art:

[0007] The utility model discloses a length-adjustable keel structure is formed through the lap joint of two L-shaped skeletons, the lap joint length of two L-shaped skeletons is adjusted, the two long edges are firmly connected together through the hoop assembly, the bending resistance of two L-shaped skeletons is greatly enhanced through the limiting rod, the limiting rod is inserted into the short edge of another L-shaped skeleton, the stable lap joint of two L-shaped skeletons can be guaranteed, the horizontal position of the limiting rod is limited through the abutting assembly, the stability of the middle position of the limiting rod is increased while avoiding the backoff of the limiting rod, the rear end of the limiting rod and the long edge are clamped through the locking piece, and the stability of the limiting rod is further increased.

[0008] As preferred, the utility model further provides a technical scheme:

[0009] The hoop assembly comprises two C-shaped clamping blocks, a clamping groove is formed in the two clamping edges of one C-shaped clamping block, a clamping block is arranged on the two clamping edges of the other C-shaped clamping block, the two C-shaped clamping blocks are fixedly connected through the clamping groove and the clamping block, when the two C-shaped clamping blocks are connected, the inner wall of the two C-shaped clamping blocks is tightly clamped on the long edge of the two L-shaped skeletons. Through the above structure, the long edge lap joint position of the two L-shaped skeletons is stably clamped and fixed, so that the supporting force of the keel structure is increased.

[0010] The short edge of the two L-shaped skeletons is provided with a sliding groove along the length direction, the rear end of the sliding groove is provided with a limiting groove, the front end of the limiting rod is fixedly connected with a sliding block matched with the sliding groove, the sliding block is used for driving the limiting rod to move in the sliding groove, and the sliding block is used for rotating from the sliding groove into the limiting groove. The limiting rod is driven to move in the sliding groove through the sliding block, so that the limiting rod is inserted into the short edge of the L-shaped skeleton, when moving to the rear end of the sliding groove, the limiting rod is rotated, the sliding block is rotated into the limiting groove, so that the position of the limiting rod is limited, and the long edge of one L-shaped skeleton and the short edge of the other L-shaped skeleton are stably connected through the limiting rod.

[0011] The locking piece comprises a first fixed bolt, the first fixed bolt is threadedly connected on the side wall of the front end of the long edge of the L-shaped skeleton, and the inner end of the first fixed bolt is used for abutting on the limiting rod in the long edge. When in use, the first fixed bolt is screwed inward, the rear end of the limiting rod is fixed in the long edge, and the first fixed bolt is only screwed outward to release the limiting.

[0012] The abutting assembly comprises a tight abutting piece, a threaded rod, an abutting head and a wing nut, the threaded rod is threadedly connected to the limiting rod, the tight abutting piece is fixed to the inner end of the threaded rod, the abutting head is sleeved on the outer end of the threaded rod, and the inner end of the abutting head is provided in a shape matched with the limiting rod, and the wing nut is threadedly connected to the threaded rod at the outer end of the abutting head, when the sliding block is rotated into the limiting groove, the bottom of the tight abutting piece abuts against the inner wall of the long side of the other L-shaped framework, the wing nut is rotated to drive the abutting head to move inward, the limiting rod is close to the long side of the other L-shaped framework, and the tight abutting piece gradually abuts against the long side of the other L-shaped framework, so that the limiting rod is fixed to the long side of the other L-shaped framework.

[0013] The clamping assembly further comprises a second fixing bolt, a clamping block and C-shaped clamping blocks on the inner and outer sides of the clamping block, a threaded hole penetrating through the clamping block and the C-shaped clamping blocks is formed, the second fixing bolt is threadedly connected to the threaded hole, and the inner end of the second fixing bolt abuts against the long side of the L-shaped framework. The position of the clamping block and the clamping groove is fixed by the second fixing bolt, so that the two C-shaped clamping blocks are fixedly connected, and the lap stability of the two long sides is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view of the embodiment of the present application;

[0015] Figure 2 is a perspective view of the embodiment of the present application;

[0016] Figure 3 is a structure diagram of a short side part of the L-shaped framework of the embodiment of the present application;

[0017] Figure 4 is a structure diagram of the limiting rod and the abutting assembly of the embodiment of the present application;

[0018] Figure 5 is a structure diagram of the clamping assembly of the embodiment of the present application.

[0019] In the drawings: 1, L-shaped framework; 11, second sliding groove; 12, limiting groove; 2, limiting rod; 21, sliding block; 3, clamping assembly; 31, second fixing bolt; 32, first C-shaped clamping block; 33, second C-shaped clamping block; 34, clamping groove; 35, clamping block; 4, first fixing bolt; 5, abutting assembly; 51, tight abutting piece; 52, threaded rod; 53, abutting head; 54, wing nut. DETAILED DESCRIPTION

[0020] The present application is further described below in combination with the embodiments, and the purpose is only to better understand the content of the present application, therefore, the examples do not limit the protection scope of the present application.

[0021] REFERENCE Figures 1-5The embodiment of the application discloses a length-adjustable keel structure, which comprises two L-shaped skeletons 1, the long edges of the two L-shaped skeletons 1 are overlapped and arranged, scale values are engraved on the long edges of the two L-shaped skeletons 1, the scale values are convenient for quickly judging the overlapping length of the long edges of the two L-shaped skeletons 1, the total length of the keel structure is conveniently adjusted, a clamping hoop assembly 3 is arranged at the overlapping position of the two long edges, the overlapping position of the two long edges is tightly clamped and connected through the clamping hoop assembly 3, a first sliding groove is arranged in the long edge of the two L-shaped skeletons 1, the axial direction of the first sliding groove is parallel to the length direction of the L-shaped skeleton 1, a limiting rod 2 is movably arranged in the first sliding groove, the axial direction of the limiting rod 2 is parallel to the length direction of the L-shaped skeleton 1, the front end of the limiting rod 2 extends outward, a pressing assembly 5 is further arranged at the front part of the limiting rod 2, when the front end of the limiting rod 2 is clamped in the short edge of the other L-shaped skeleton 1, the inner end of the pressing assembly 5 is tightly pressed against the inner wall of the long edge of the other L-shaped skeleton 1, and the rear end of the limiting rod 2 is clamped in the long edge through a locking piece.

[0022] In the embodiment, the clamping hoop assembly 3 comprises a first C-shaped clamping block 32 and a second C-shaped clamping block 33, the widths of the first C-shaped clamping block 32 and the second C-shaped clamping block 33 are consistent, clamping grooves 34 are arranged in the two clamping edges of the first C-shaped clamping block 32, clamping blocks 35 are fixedly arranged on the two clamping edges of the second C-shaped clamping block 33, the cross-sectional shape of the clamping blocks 35 matches that of the clamping grooves 34, so that the clamping blocks 35 can be inserted into the clamping grooves 34, the first C-shaped clamping block 32 and the second C-shaped clamping block 33 are fixedly inserted through the clamping blocks 35 and the clamping grooves 34, when the clamping blocks 35 are inserted into the clamping grooves 34, the inner walls of the first C-shaped clamping block 32 and the second C-shaped clamping block 33 are tightly clamped on the long edges of the two L-shaped skeletons 1. Through the above structure, the overlapping position of the long edges of the two L-shaped skeletons 1 is stably clamped and fixed, so that the supporting force of the keel structure is increased.

[0023] The short side front end of the two L-shaped skeletons 1 is provided with a second sliding groove 11 in the length direction, when the long sides of the two L-shaped skeletons 1 are overlapped, the two first sliding grooves correspond to the positions of the two second sliding grooves 11 in front and back, and are axially parallel, the second sliding groove 11 is composed of a middle cylindrical groove and two fan ring grooves outside the cylindrical groove, the two fan ring grooves are circumferentially equidistantly arranged, the central angles of the two fan ring grooves are both 60 degrees, the rear end of the second sliding groove 11 is provided with a limiting groove 12, the limiting groove 12 is a circular groove, and the diameter of the limiting groove 12 is equal to the outer diameter of the fan ring groove, the diameter of the limiting rod 2 is slightly smaller than the diameter of the cylindrical groove, the front end of the limiting rod 2 is circumferentially fixed with two fan-shaped sliding blocks 21, the two sliding blocks 21 are circumferentially equidistantly fixed, the central angles of the two sliding blocks 21 are both set to 55-59 degrees, the sliding block 21 is used to drive the limiting rod 2 to move in the sliding groove, and the sliding block 21 is used to rotate from the sliding groove into the limiting groove 12. Through the above structure, the front end of the sliding block 21 and the limiting rod 2 can be slidably connected to the short side of the L-shaped skeleton 1, the limiting rod 2 is driven to move in the second sliding groove 11 by the sliding block 21, so as to drive the limiting rod 2 to be inserted into the short side of the L-shaped skeleton 1, when the sliding block 21 moves into the limiting groove 12 at the rear end of the second sliding groove 11, the limiting rod 2 is rotated by 60 degrees, so that the two sliding blocks 21 are rotated to the positions in the limiting groove 12 which do not correspond to the fan ring grooves, thereby avoiding the sliding block 21 from moving out along the fan ring groove, and further fixing the position of the limiting rod 2, so that the long side of one L-shaped skeleton 1 and the short side of the other L-shaped skeleton 1 are stably connected, and the lateral bending resistance of the L-shaped skeleton 1 is increased by the limiting rod 2.

[0024] In the embodiment, the locking member includes a first fixing bolt 4, a threaded hole penetrating the inside and outside is formed in the side wall of the long side front end of the L-shaped skeleton 1, the first fixing bolt 4 is threadedly connected in the threaded hole, and the inner end of the first fixing bolt 4 is used to abut on the limiting rod 2 in the first sliding groove. When in use, the first fixing bolt 4 is screwed inward, the rear end of the limiting rod 2 is fixed in the first sliding groove by the inner end of the first fixing bolt 4 abutting on the limiting rod 2, and the limiting is released by only screwing the first fixing bolt 4 outward.

[0025] In this embodiment, the clamping assembly 5 includes a clamping plate 51, a threaded rod 52, an abutment joint 53, and a wing nut 54. The limiting rod 2 has a through-hole with an internal thread, the axis of which is perpendicular to the axis of the limiting rod 2. The threaded rod 52 is threaded onto the limiting rod 2 through the internal thread hole. The clamping plate 51 fixes the inner end of the threaded rod 52. The abutment joint 53 is movably sleeved on the outer end of the threaded rod 52, and the inner end of the abutment joint 53 is configured as an arc shape matching the limiting rod 2. The wing nut 54 is threaded onto the outer end of the abutment joint 53. On the threaded rod 52, when the sliding block 21 rotates to the limiting groove 12 for position limitation, the bottom of the abutment 51 is parallel to the inner wall of the long side of the other L-shaped frame 1. In use, first rotate the threaded rod 52, and the threaded rod 52 drives the abutment 53 to press tightly against the inner wall of the long side of the other L-shaped frame 1. Then rotate the wing nut 54, and the wing nut 54 drives the abutment 53 to move inward, pressing the limiting rod 2 close to the inner wall of the long side of the other L-shaped frame 1, thereby limiting the position of the limiting rod 2 and the long side of the other L-shaped frame 1.

[0026] In this embodiment, the clamp assembly 3 further includes a second fixing bolt 31. The snap-fit ​​block 35 and the first C-shaped clamping blocks 32 on its inner and outer sides have through threaded holes. The second fixing bolt 31 is threaded into these threaded holes, and its inner end abuts against the long side of the L-shaped frame 1. The second fixing bolt 31 fixes the positions of the snap-fit ​​block 35 and the snap-fit ​​groove 34, thus securing the two C-shaped clamping blocks together and increasing the overlap stability of the long sides of the two L-shaped frames.

[0027] This invention connects two L-shaped frames 1 together, and by adjusting the overlap length of the two L-shaped frames 1, an adjustable-length keel structure is formed. During use, the overlap length of the L-shaped frames 1 is adjusted as needed to ensure that the overall length of the two L-shaped frames 1 is equal to the required length. The two long sides are firmly connected together by a clamp assembly 3. Then, a limiting rod 2 is pulled out and inserted into the corresponding short side of the other L-shaped frame 1. The limiting rod 2 is rotated so that the limiting groove 12 limits the position of the limiting rod 2. Then, the locking member and the abutting assembly 5 are tightened to lock the position of the limiting rod 2. The limiting rod 2 greatly enhances the bending resistance of the two L-shaped frames 1. Inserting the limiting rod 2 into the short side of the other L-shaped frame 1 ensures a stable overlap of the two L-shaped frames 1. The abutting assembly 5 limits the horizontal position of the limiting rod 2, preventing it from retracting and increasing the stability of the middle position of the limiting rod 2. The locking member secures the rear end of the limiting rod 2 to the long side, further increasing the stability of the limiting rod 2.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. An adjustable length keel structure, characterized by: The two L-shaped skeletons are arranged in a long side lap joint mode, and a clamping assembly is arranged at the lap joint position of the two long sides; a limiting rod is movably arranged in the long side of the two L-shaped skeletons, and the axial direction of the limiting rod is parallel to the length direction of the L-shaped skeleton; a pressing assembly is further arranged at the front part of the limiting rod, and the front end of the limiting rod is clamped in the short side of the other L-shaped skeleton, so that the inner end of the pressing assembly is tightly pressed against the inner wall of the long side of the other L-shaped skeleton, and the rear end of the limiting rod is clamped in the long side by a locking member.

2. An adjustable length keel structure according to claim 1, wherein: The clamping assembly comprises two C-shaped clamping blocks, a clamping groove is formed in the two clamping edges of one C-shaped clamping block, and a clamping block is arranged on the two clamping edges of the other C-shaped clamping block; the two C-shaped clamping blocks are fixed by the clamping groove and the clamping block; when the two C-shaped clamping blocks are inserted, the inner walls of the two C-shaped clamping blocks are tightly clamped on the long sides of the two L-shaped skeletons.

3. An adjustable length keel structure according to claim 1, wherein: The short side of the two L-shaped skeletons is provided with a sliding groove at the front end along the length direction, a limiting groove is formed at the rear end of the sliding groove, the front end of the limiting rod is fixed with a sliding block matched with the sliding groove, the sliding block is used to drive the limiting rod to move in the sliding groove, and the sliding block is used to rotate from the sliding groove to the limiting groove.

4. An adjustable length keel structure according to claim 3, wherein: The locking member comprises a first fixing bolt, the first fixing bolt is threadedly connected to the side wall at the front end of the long side of the L-shaped skeleton, and the inner end of the first fixing bolt is used to abut against the limiting rod inside the long side.

5. An adjustable length keel structure according to claim 3, wherein: The pressing assembly comprises a pressing piece, a threaded rod, an abutting head and a wing nut, the threaded rod is threadedly connected to the limiting rod, the inner end of the threaded rod is fixed with the pressing piece, the abutting head is sleeved on the outer end of the threaded rod, the inner end of the abutting head is arranged in a shape matched with the limiting rod, and the wing nut is threadedly connected to the threaded rod at the outer end of the abutting head; when the sliding block rotates into the limiting groove, the bottom of the pressing piece abuts against the inner wall of the long side of the other L-shaped skeleton.

6. An adjustable length keel structure according to claim 2, wherein: The clamping assembly further comprises a second fixing bolt, a threaded hole is formed in the clamping block and the C-shaped clamping block on the inner and outer sides of the clamping block, and the second fixing bolt is threadedly connected in the threaded hole; the inner end of the second fixing bolt abuts against the long side of the L-shaped skeleton.

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