Fence for construction

Abstract

The utility model provides a fence for construction, and belongs to the technical field of construction fences. The fence for construction comprises fence legs and a connecting box, an angle fixing mechanism comprises a spline sleeve, a spline shaft and an extrusion groove, the spline sleeve is rotationally installed on the inner wall of the connecting box, the spline shaft is fixedly arranged on the surface of the fence legs in a sleeving mode, the spline shaft is slidably arranged in the spline sleeve in a sleeving mode, and the extrusion groove is formed in the surface of the spline sleeve. By arranging the angle fixing mechanism, a worker inserts a fence leg into the spline sleeve and rotates the fence to enable the fence leg to drive the spline shaft to rotate so as to drive the spline sleeve to rotate, and after the fence rotates to a preset angle, the spline sleeve is limited by fixing a ball in an extrusion groove, so that the fence is fixed to a certain position. Therefore, the problem that the stability of the whole structure is damaged due to the fact that the cylindrical fence legs are easy to rotate when the fence is subjected to external force is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction fences, in particular to a construction fence. Background Art

[0002] Construction fence is a temporary isolation facility set up around various construction sites such as building construction, road construction, municipal engineering, etc. It plays a vital role in safety protection. At the same time, in order to meet people's needs, construction fence generally has the characteristics of quick disassembly and reusability.

[0003] When the existing equipment is in use, multiple fences are spliced together at a specific angle according to on-site needs, and the fence legs of two different fences are inserted into the inside of the same connecting box to connect different fences together. However, the connecting legs can only serve as a connection and cannot limit the angle of the fence legs after rotation. When encountering external force, the cylindrical fence legs will cause rotation, thereby destroying the overall structural stability. Utility Model Content

[0004] In order to make up for the above deficiencies, the present utility model provides a construction fence that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a construction fence, comprising fence legs and a connection box.

[0007] An angle fixing mechanism, the angle fixing mechanism comprising:

[0008] A spline sleeve, the spline sleeve being rotatably mounted on the inner wall of the connection box;

[0009] A spline shaft, wherein the spline shaft is fixedly sleeved on the surface of the fence leg and the spline shaft is slidably sleeved inside the spline sleeve;

[0010] Extrusion grooves, the extrusion grooves are opened on the surface of the spline sleeve, and the extrusion grooves are arranged in a circular array;

[0011] A connecting mechanism is provided on the surface of a fence leg and is used to connect a plurality of fences.

[0012] In a preferred embodiment, the connecting mechanism includes:

[0013] A connecting block, the connecting block being fixedly sleeved on the surface of the fence leg;

[0014] A connecting wedge, the connecting wedge being slidably disposed inside the connecting block;

[0015] The positioning block is fixedly mounted on the surface of the connecting block and is provided with a positioning groove which passes through the left and right sides.

[0016] In a preferred solution, the shape of the extrusion groove is set to be hemispherical, and a ring is fixedly installed on the top of the connection box, and the ring is sleeved on the surface of the spline sleeve.

[0017] In a preferred solution, an accommodating cavity is formed on the inner wall of the circular ring, a spherical body is provided in the internal sliding sleeve of the accommodating cavity, and one side of the spherical body penetrates into the interior of the extrusion groove.

[0018] In a preferred solution, a first spring is fixedly mounted on the inner wall of the accommodating cavity, and the other end of the first spring is fixedly connected to the sphere.

[0019] In a preferred embodiment, a connecting rod is fixedly installed on the side of the sphere away from the spline sleeve, and the connecting rod passes through the outer wall of the ring. A connecting plate is fixedly installed on the side of the connecting rod passing through the outer wall of the ring, and two connecting sleeves are provided on the surface of the ring.

[0020] In a preferred solution, a positioning cavity is provided on the front side of the connecting block, a moving cavity is provided on the right side of the positioning cavity, and the connecting wedge block is slidably sleeved inside the positioning cavity.

[0021] In a preferred solution, a second spring is fixedly installed on the right side of the inner wall of the movable cavity, the other end of the second spring is fixedly connected to the right side of the connecting wedge, and an unlocking rod is fixedly installed on the right side of the connecting wedge.

[0022] The utility model provides a construction fence, the beneficial effects of which include:

[0023] 1. By setting up an angle fixing mechanism, the staff inserts the fence legs into the inside of the spline sleeve, and rotates the fence so that the fence legs drive the spline shaft to rotate, thereby driving the spline sleeve to rotate. When the fence is rotated to a preset angle, the sphere is fixed inside the extrusion groove so that the spline sleeve is limited, so that the fence legs cannot rotate, thereby avoiding the problem that when the fence is subjected to external force, its cylindrical fence legs are easily rotated, which leads to the destruction of the stability of the overall structure.

[0024] 2. By setting up a connecting mechanism, when the staff needs to dismantle the fence and transfer it to the next site, the two fences are overlapped with each other so that the connecting blocks on different fences are relatively aligned. By inserting the positioning block into the connecting block, the connecting wedge is squeezed and inserted into the positioning groove, so that the two fences are connected together in an overlapping manner, making it convenient for the staff to carry multiple fences as a whole during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the utility model;

[0027] Figure 2 An exploded view of a spline shaft and a spline sleeve is provided for an embodiment of the present utility model;

[0028] Figure 3 A partial cross-sectional view of a ring is provided for an embodiment of the present utility model;

[0029] Figure 4 A partial cross-sectional view of a connecting block is provided for an embodiment of the present invention.

[0030] In the figure: 1. Fence leg; 2. Connecting box; 3. Spline sleeve; 4. Spline shaft; 5. Extrusion groove; 6. Connecting block; 7. Connecting wedge; 8. Positioning block; 9. Positioning groove; 10. Ring; 11. Accommodating cavity; 12. Sphere; 13. First spring; 14. Connecting rod; 15. Connecting plate; 16. Connecting sleeve; 17. Positioning cavity; 18. Moving cavity; 19. Second spring; 20. Unlocking lever. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-4The utility model provides a technical solution: a construction fence, including a fence leg 1 and a connecting box 2, an angle fixing mechanism including a spline sleeve 3, a spline shaft 4 and an extrusion groove 5, the spline sleeve 3 is rotatably mounted on the inner wall of the connecting box 2, the spline shaft 4 is fixedly sleeved on the surface of the fence leg 1, the spline shaft 4 is slidably sleeved inside the spline sleeve 3, the extrusion groove 5 is opened on the surface of the spline sleeve 3, the extrusion groove 5 is arranged in a circular array, and the connecting mechanism is arranged on the surface of the fence leg 1 for connecting multiple fences. By setting the angle fixing mechanism, the staff inserts the fence leg 1 into the interior of the spline sleeve 3 so that the spline The key shaft 4 and the spline sleeve 3 are meshed, and the staff rotates the fence, so that the fence leg 1 drives the spline shaft 4 to rotate, thereby driving the spline sleeve 3 to rotate. When the fence is rotated to a preset angle, the spline sleeve 3 is restricted by fixing the sphere 12 inside the extrusion groove 5, so that the spline sleeve 3 is unable to rotate. The meshing connection between the spline sleeve 3 and the spline shaft 4 prevents the fence leg 1 from rotating, thereby avoiding the problem that the cylindrical fence leg 1 is easily rotated when the fence is subjected to external force, resulting in damage to the stability of the overall structure. Compared with the existing technology, the stability of the spliced fence is stronger;

[0033] Reference Figure 1-4 The connecting mechanism includes a connecting block 6, a connecting wedge 7, a positioning block 8 and a positioning slot 9. The connecting block 6 is fixedly sleeved on the surface of the fence leg 1, the connecting wedge 7 is slidably arranged inside the connecting block 6, and the positioning block 8 is fixedly installed on the surface of the connecting block 6. The positioning block 8 is provided with a positioning slot 9 that passes through left and right. By setting up the connecting mechanism, when the staff needs to dismantle the fence and transfer it to the next site, the two fences are overlapped with each other so that the connecting blocks 6 on different fences are aligned. By inserting the positioning block 8 into the interior of the connecting block 6, the connecting wedge 7 is squeezed and inserted into the interior of the positioning slot 9, so that the connecting wedge 7 and the positioning block 8 cooperate with each other, so that the two fences are connected together in an overlapping manner, so that during the transportation of the fence, it is convenient for the staff to carry multiple fences as a whole, and it can also reduce the space occupied;

[0034] Reference Figure 1-4 The shape of the extrusion groove 5 is set to be hemispherical, and a ring 10 is fixedly installed on the top of the connecting box 2. The ring 10 is sleeved on the surface of the spline sleeve 3. The inner wall of the ring 10 is provided with an accommodating cavity 11. The internal sliding sleeve of the accommodating cavity 11 is provided with a sphere 12. One side of the sphere 12 penetrates into the interior of the extrusion groove 5. By setting the sphere 12, when the fence leg 1 rotates, the spline sleeve 3 rotates through the mutual engagement of the spline shaft 4 and the spline sleeve 3, so that the inner wall of the extrusion groove 5 squeezes the sphere 12, and the sphere 12 retracts into the interior of the accommodating cavity 11 until the next extrusion groove 5 is aligned with the sphere 12. The rebound force of the first spring 13 causes the sphere 12 to pop out into the interior of the next extrusion groove 5, and this is repeated.

[0035] Reference Figure 1-4 , a first spring 13 is fixedly installed on the inner wall of the accommodating cavity 11, and the other end of the first spring 13 is fixedly connected to the ball 12, and a connecting rod 14 is fixedly installed on the side of the ball 12 away from the spline sleeve 3, and the connecting rod 14 passes through the outer wall of the ring 10, and a connecting plate 15 is fixedly installed on one side of the connecting rod 14 passing through the outer wall of the ring 10. Two connecting sleeves 16 are provided on the surface of the ring 10. By setting the connecting sleeves 16, when the staff rotates the fence to a preset angle, the two connecting sleeves 16 are installed on the surface of the ring 10 by bolts. At this time, the inner wall of the connecting sleeve 16 and the connecting plate 15 are in contact. When the fence is disturbed by external force and the fence leg 1 intends to rotate, due to the restriction of the connecting sleeve 16, the connecting plate 15 cannot move radially, so that the ball 12 cannot be squeezed out from the inner wall of the extrusion groove 5, and the spline sleeve 3 cannot rotate, thereby preventing the fence leg 1 from rotating. When the limit needs to be released, the bolts are removed and the two connecting sleeves 16 are removed;

[0036] Reference Figure 1-4 , a positioning cavity 17 is provided on the front side of the connecting block 6, and a moving cavity 18 is provided on the right side of the positioning cavity 17. The connecting wedge 7 is slidably sleeved inside the positioning cavity 17, and a second spring 19 is fixedly installed on the right side of the inner wall of the moving cavity 18. The other end of the second spring 19 is fixedly connected to the right side of the connecting wedge 7, and an unlocking rod 20 is fixedly installed on the right side of the connecting wedge 7. By setting the positioning cavity 17, the staff aligns the two connecting blocks 6 on different fences and moves one fence close to the other fence so that the positioning block 8 on one connecting block 6 is inserted into the positioning cavity 17 of the other connecting block 6. The positioning block 8 squeezes the connecting wedge 7 so that the connecting wedge 7 retracts into the interior of the moving cavity 18 until the positioning block 8 moves to the preset position. The rebound force of the second spring 19 causes the connecting wedge 7 to pop out and insert into the positioning groove 9, thereby connecting the two different connecting blocks 6 together, that is, the two different fences are overlapped and connected together. When the fences need to be separated, the unlocking rod 20 is moved away from the connecting block 6 to separate the two connecting blocks 6.

[0037] Specifically, the working process or working principle of the construction fence is as follows: when in use, the staff inserts the fence leg 1 into the inside of the spline sleeve 3 so that the spline shaft 4 and the spline sleeve 3 are engaged. The staff rotates the fence so that the fence leg 1 drives the spline shaft 4 to rotate, thereby driving the spline sleeve 3 to rotate. When the fence is rotated to a preset angle, the two connecting sleeves 16 are installed on the surface of the ring 10 by bolts. At this time, the inner wall of the connecting sleeve 16 and the connecting plate 15 are in contact. When the fence is disturbed by external force and the fence leg 1 intends to rotate, due to the restriction of the connecting sleeve 16, the connecting plate 15 cannot move radially, so that the sphere 12 cannot be squeezed out from the inner wall of the extrusion groove 5, and the spline sleeve 3 cannot rotate, thereby preventing the fence leg 1 from rotating. When it is necessary to release the limit, remove the bolts and connect the two The connecting sleeve 16 can be removed. When the staff needs to dismantle the fence and transfer it to the next site, the two fences are overlapped with each other, and one of the fences is moved close to the other fence, so that the positioning block 8 on one of the connecting blocks 6 is inserted into the positioning cavity 17 of the other connecting block 6. The positioning block 8 squeezes the connecting wedge 7, so that the connecting wedge 7 is retracted into the interior of the movable cavity 18 until the positioning block 8 moves to the preset position. The rebound force of the second spring 19 causes the connecting wedge 7 to pop out and be inserted into the positioning groove 9, so that two different connecting blocks 6 are connected together, that is, two different fences are overlapped and connected together. When the fences need to be separated, the unlocking rod 20 is moved away from the connecting block 6 to separate the two connecting blocks 6.

Claims

1. A construction fence, comprising a fence leg (1) and a connection box (2), characterized in that: An angle fixing mechanism, the angle fixing mechanism comprising: A spline sleeve (3), the spline sleeve (3) being rotatably mounted on the inner wall of the connection box (2); A spline shaft (4), wherein the spline shaft (4) is fixedly sleeved on the surface of the fence leg (1), and the spline shaft (4) is slidably sleeved inside the spline sleeve (3); Extrusion grooves (5), the extrusion grooves (5) are formed on the surface of the spline sleeve (3), and the extrusion grooves (5) are arranged in a circular array; A connecting mechanism is provided on the surface of a fence leg (1) and is used to connect a plurality of fences.

2. A construction fence according to claim 1, characterized in that: The connecting mechanism includes: A connecting block (6), wherein the connecting block (6) is fixedly sleeved on the surface of the fence leg (1); A connecting wedge (7), wherein the connecting wedge (7) is slidably arranged inside the connecting block (6); A positioning block (8) is fixedly mounted on the surface of the connecting block (6), and a positioning groove (9) is provided on the positioning block (8) which passes through the left and right sides.

3. A construction fence according to claim 1, characterized in that: The shape of the extrusion groove (5) is set to be hemispherical, and a circular ring (10) is fixedly installed on the top of the connection box (2), and the circular ring (10) is sleeved on the surface of the spline sleeve (3).

4. A construction fence according to claim 3, characterized in that: The inner wall of the ring (10) is provided with an accommodating cavity (11), and the inner sliding sleeve of the accommodating cavity (11) is provided with a sphere (12), and one side of the sphere (12) penetrates into the interior of the extrusion groove (5).

5. A construction fence according to claim 4, characterized in that: A first spring (13) is fixedly mounted on the inner wall of the accommodating cavity (11), and the other end of the first spring (13) is fixedly connected to the sphere (12).

6. A construction fence according to claim 5, characterized in that: A connecting rod (14) is fixedly installed on the side of the sphere (12) away from the spline sleeve (3), and the connecting rod (14) penetrates the outer wall of the ring (10). A connecting plate (15) is fixedly installed on the side of the connecting rod (14) penetrating the outer wall of the ring (10), and two connecting sleeves (16) are provided on the surface of the ring (10).

7. The construction fence according to claim 2, characterized in that: A positioning cavity (17) is provided on the front side of the connecting block (6), a moving cavity (18) is provided on the right side of the positioning cavity (17), and the connecting wedge block (7) is slidably sleeved inside the positioning cavity (17).

8. The construction fence according to claim 7, characterized in that: A second spring (19) is fixedly installed on the right side of the inner wall of the movable cavity (18), and the other end of the second spring (19) is fixedly connected to the right side of the connecting wedge (7), and an unlocking rod (20) is fixedly installed on the right side of the connecting wedge (7).

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