A noise prevention fence for road construction

Abstract

The utility model belongs to the technical field of construction fence, concretely relates to a road construction noise prevention fence, include: base, top fixed have vertical upward support cylinder and support shaft, fence body, both ends have the connecting cylinder that fix, locking mechanism, including locking lever, the multiple locking blocks of upper and lower interval setting in locking lever both sides, the locking tooth of integrally formed in locking block outer end surface and the multiple locking rings of upper and lower interval setting in the outer wall of connecting cylinder, wherein, the outer wall of locking ring evenly interval has a plurality of locking groove corresponding with locking tooth shape, the utility model only needs to lift locking lever upward when adjusting angle, can drive locking tooth to separate from locking groove, release locking, after fence body rotates to target angle, loosen locking lever, under the action of gravity automatic subsidence, locking tooth re-embeds in locking groove, in the whole process, the separation or occlusion of locking tooth and locking groove does not need to overcome spring elasticity, and the operation is smooth, easy and convenient.

Description

Technical Field

[0001] This utility model belongs to the field of construction fence technology, specifically relating to a noise-reducing fence for road construction. Background Technology

[0002] During road construction, especially in urban areas, it is necessary to set up fences to separate pedestrians and vehicles from the construction area for safety reasons. Noise-reducing fences can not only isolate the construction area but also prevent noise generated during construction from affecting the lives of surrounding residents.

[0003] Noise reduction and noise reduction fences are disclosed in the prior art. For example, patent CN219808824U discloses a noise reduction fence that is easy to adjust the angle. It achieves the adjustment of the angle of the noise reduction fence body by setting a first locking tooth and a pressure-regulating component in the first mounting block of the noise reduction fence body and a second locking tooth in the second mounting block of the noise reduction fence body. The angle of the noise reduction fence body is fixed by the interlocking locking blocks and annular grooves, which can improve the adaptability of the noise reduction fence body to different construction sites and reduce the number of noise reduction fences used.

[0004] Undeniably, the noise-reducing fence with adjustable angle disclosed in this patent can achieve the aforementioned effects, but it also has certain shortcomings: When adjusting the angle of the noise-reducing fence body, both the first and second locking teeth are rigid structures, and their tooth surfaces directly contact and slide, which can easily lead to jamming; moreover, during the adjustment process, the second locking tooth presses against the first locking tooth, and the top pressure spring, while deforming, also hinders the movement of the second locking tooth, thus creating resistance to the rotation of the noise-reducing fence body, resulting in an unsmooth or laborious adjustment process. In addition, the top pressure spring is the core power source for the continuous engagement of the locking teeth, but there is continuous vibration at the construction site. After long-term vibration and stress, the spring may experience elastic fatigue and decrease in elasticity, causing the engagement between the first and second locking teeth to loosen. This can cause the fence body angle to deflect under the action of external forces such as wind or collisions, making it impossible to stably maintain the preset angle.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a noise-reducing fence for road construction, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A noise-reducing fence for road construction, comprising:

[0009] A base, wherein a vertically upward support cylinder is fixed to the top of the base, and a vertically upward support shaft is fixed to each side of the support cylinder at intervals;

[0010] The fence body has connecting cylinders at both ends that correspond to the support shaft;

[0011] The locking mechanism includes a locking rod that passes through the support cylinder and slides and guides the support cylinder, a plurality of locking blocks that are spaced vertically on both sides of the locking rod, a locking tooth integrally formed on the outer end face of the locking block, and a plurality of locking rings that are spaced vertically on the outer wall of the connecting cylinder and correspond to the position of the locking tooth; wherein, a plurality of locking grooves with shapes corresponding to the locking tooth are evenly spaced on the outer wall of the locking ring so that the locking tooth is confined in the locking groove.

[0012] Furthermore, a sound-absorbing cotton board is fixed in the middle of the fence body.

[0013] Furthermore, a fixing block is integrally formed on the inner end face of the locking block; a fixing groove corresponding to the fixing block is recessed on the outer wall of the locking rod, and the fixing block is fixed in the fixing groove by bolts.

[0014] Furthermore, a clearance groove is provided on the side wall of the support cylinder near the connecting cylinder, and the height of the clearance groove is greater than twice the height of the locking block; when the locking block abuts against the bottom wall of the clearance groove, the locking tooth is located in the locking groove, thereby hindering the rotation of the fence body; when the locking block abuts against the top wall of the clearance groove, the locking tooth is located above the locking groove, thereby allowing the fence body to rotate freely.

[0015] Furthermore, the locking ring is in the shape of the letter "C" with fixed plates integrally formed at both ends; after the locking ring is sleeved on the outer wall of the connecting cylinder, bolts are used to pass through the two fixed plates and the fence body to fix the locking ring on the outer wall of the connecting cylinder.

[0016] Furthermore, the road construction noise-reducing fence also includes a limiting plate fixed to the top of the support cylinder by bolts, and the limiting plate has a clearance hole in the middle that corresponds to the shape of the locking rod; the bottom of the limiting plate is symmetrically fixed with vertically downward limiting shafts, and the limiting shafts are inserted into the top of the connecting cylinder.

[0017] Furthermore, the height of the support cylinder is greater than the height of the connecting cylinder.

[0018] Furthermore, the top of the locking rod is integrally formed with a counterweight.

[0019] Furthermore, a fastening bolt is threaded onto the outer wall of the support cylinder. When the fastening bolt is tightened, the inner end of the fastening bolt abuts against the outer wall of the locking rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) When adjusting the angle, this utility model only needs to lift the locking rod upwards to drive the locking tooth to disengage from the locking groove and release the lock; after the fence body rotates to the target angle, the locking rod is released and it automatically sinks under the action of gravity, and the locking tooth is re-embedded into the locking groove. Throughout the process, the separation or engagement of the locking tooth and the locking groove does not need to overcome the spring force, and the operation is smooth, easy and convenient.

[0022] (2) The clearance groove on the side wall of the support cylinder of this utility model clearly defines the stroke of the locking block: when the locking block abuts against the bottom wall of the groove, the locking tooth is embedded in the locking groove, and it is in the locked state; when the locking block abuts against the top wall of the groove, the locking tooth is completely disengaged from the locking groove, and it is in the unlocked state. This design makes it easy for operators to directly judge the status by the position of the locking block, reducing operational errors.

[0023] (3) The present invention fixes a sound-absorbing cotton board in the middle of the fence body. The sound-absorbing cotton is a mature sound-absorbing material in the industry. It can absorb construction noise through its porous structure, thereby achieving the noise reduction effect of the fence body from the material level.

[0024] (4) The support shaft on the base of this utility model is fitted with the connecting cylinder of the fence body to form a vertical rotation fulcrum; the top limiting plate is inserted into the connecting cylinder through the limiting shaft, limiting the radial sway of the connecting cylinder and improving the reliability and stability of the fence body connection.

[0025] (5) The locking ring of this utility model is connected to the fence body by bolts, which makes it easy to replace it separately after wear and tear, thus reducing maintenance costs.

[0026] (6) A fastening bolt is threaded on the outer wall of the support cylinder of this utility model. When the fastening bolt is tightened, the inner end of the fastening bolt abuts against the outer wall of the locking rod, thereby fixing the locking rod and effectively preventing the locking rod from moving up and down due to vibration. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 for Figure 1 Main view;

[0030] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the locking rod of this utility model;

[0032] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0033] Figure 7 This is a schematic diagram of the locking ring structure of this utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0035] Explanation of key figure labels:

[0036] 1. Base; 11. Support cylinder; 12. Support shaft; 13. Fastening bolt; 14. Relief groove;

[0037] 2. Fence body; 21. Connecting cylinder; 22. Sound-absorbing cotton board;

[0038] 3. Locking mechanism; 31. Locking rod; 32. Locking block; 33. Locking tooth; 34. Locking ring; 35. Locking groove; 36. Fixing block; 37. Fixing groove; 38. Fixing plate; 39. Counterweight block;

[0039] 4. Limiting plate; 41. Leaving hole; 42. Limiting shaft. Detailed Implementation

[0040] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] Example

[0042] See appendix Figure 1-8 A noise-reducing fence for road construction, comprising:

[0043] The base 1 has a vertically upward support cylinder 11 fixed on its top, and a vertically upward support shaft 12 is fixed on each side of the support cylinder 11 at intervals.

[0044] The fence body 2 has connecting cylinders 21 at both ends that correspond to the support shaft 12, and the height of the connecting cylinders 21 is less than the height of the support cylinder 11; a sound-absorbing cotton board 22 is fixed in the middle of the fence body 2.

[0045] The locking mechanism 3 includes a locking rod 31 that passes through the support cylinder 11 and slides and guides with the support cylinder 11; multiple locking blocks 32 that are spaced vertically on both sides of the locking rod 31; locking teeth 33 integrally formed on the outer end face of the locking blocks 32; and multiple locking rings 34 that are spaced vertically on the outer wall of the connecting cylinder 21 and correspond to the positions of the locking teeth 33. The outer wall of the locking rings 34 is evenly spaced with multiple locking grooves 35 whose shapes correspond to the locking teeth 33 so that the locking teeth 33 are confined within the locking grooves 35. It should be specifically noted that the support... A clearance slot 14 is provided on the side wall of the cylinder 11 near the connecting cylinder 21. The height of the clearance slot 14 is greater than twice the height of the locking block 32, and the width of the clearance slot 23 is greater than the width of the locking block 32. The locking block 32 and the locking tooth 33 extend out from the clearance slot 14. When the locking block 32 abuts against the bottom wall of the clearance slot 14, the locking tooth 33 is located in the locking groove 35, thus hindering the rotation of the fence body 2. When the locking block 32 abuts against the top wall of the clearance groove 23, the locking tooth 33 is located above the locking groove 35, thus allowing the fence body 2 to rotate freely.

[0046] The limiting plate 4 is fixed to the top of the support cylinder 11 with bolts. Specifically, the top of the support cylinder 11 has threaded grooves on both sides. After the bolts pass through the through holes on both sides of the middle of the limiting plate 4, they are connected in the threaded grooves, thereby fixing the limiting plate 4 to the top of the support cylinder 11. The middle of the limiting plate 4 has a clearance hole 41 corresponding to the shape of the locking rod 31 so that the locking rod 31 can pass through the limiting plate 4. The bottom of the limiting plate 4 is symmetrically fixed with vertically downward limiting shafts 42, which are inserted into the top of the connecting cylinder 21.

[0047] In this embodiment, a fixing block 36 is integrally formed on the inner end face of the locking block 32; a fixing groove 37 corresponding to the fixing block 36 is recessed on the outer wall of the locking rod 31, and the fixing block 36 is fixed in the fixing groove 37 by bolts. It is easy to understand that a threaded groove corresponding to the bolt is opened on the fixing groove 37; a through hole corresponding to the bolt is opened on the fixing block 36, and the outer end of the bolt does not exceed the fixing groove 37 to avoid obstruction with the inner wall of the support cylinder 11.

[0048] In this embodiment, the locking ring 34 is C-shaped, with fixed plates 38 integrally formed at both ends. After the locking ring 34 is fitted onto the outer wall of the connecting cylinder 21, a nut is connected by bolts through the through holes on the two fixed plates 38 and the fence body 2 to fix the locking ring 34 onto the outer wall of the connecting cylinder 21. It should be noted that the inner wall of the locking ring 34 fits against the outer wall of the connecting cylinder 21.

[0049] In this embodiment, a counterweight 39 is integrally formed on the top of the locking rod 31; a fastening bolt 13 is threadedly connected to the outer wall of the support cylinder 11. When the fastening bolt 13 is tightened, the inner end of the fastening bolt 13 abuts against the outer wall of the locking rod 31.

[0050] In use, the base 1 is fixed to the ground, the locking block 32 is placed in the clearance slot 14, the connecting cylinder 21 of the fence body 2 is sleeved on the support shaft 12, the locking ring 34 is sleeved on the outer wall of the connecting cylinder 21 from the top, and the limiting shaft 42 at the bottom of the limiting plate 4 is inserted into the connecting cylinder 21 from the top. The limiting plate 4 is fixed to the top of the support cylinder 11 with bolts. After aligning the fixing block 36 of the locking block 32 with the fixing groove 37, the fixing block 36 is fixed in the fixing groove 37 using bolts; then the locking ring 34 at the outer wall of the connecting cylinder 21 is fixed in the position corresponding to the locking tooth 33 using bolts. At this point, the assembly of the base 1, the fence body 2, the locking mechanism 3 and the limiting plate 4 is completed. At this time, due to the gravity of the counterweight block 39 and the locking rod 31, the bottom of the locking block 32 abuts against the bottom wall of the clearance groove 14, and the locking tooth 33 is located in the locking groove 35, thus hindering the rotation of the fence body 2. When the angle of the fence body 2 needs to be adjusted, lift the counterweight 39 and locking rod 31 upwards, so that the top of the locking block 32 abuts against the top wall of the clearance groove 23, and the locking tooth 33 separates from the locking groove 35 and is located above the locking groove 35. At this time, the fence body 2 can be rotated freely. After the fence body 2 is rotated to a suitable angle, lower the counterweight 39 and locking rod 31. The bottom of the locking block 32 abuts against the bottom wall of the clearance groove 14 again, and the locking tooth 33 is located in the locking groove 35, thus hindering the rotation of the fence body 2 and realizing the locking and fixing of the angle of the fence body 2.

[0051] In addition, to prevent the locking rod 31 from moving up and down due to vibration, a fastening bolt 13 is added in this embodiment. When the fastening bolt 13 is tightened, the inner end of the fastening bolt 13 abuts against the outer wall of the locking rod 31 to fix the locking rod 31.

[0052] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A noise-reducing fence for road construction, characterized in that, include: A base, wherein a vertically upward support cylinder is fixed to the top of the base, and a vertically upward support shaft is fixed to each side of the support cylinder at intervals; The fence body has connecting cylinders at both ends that correspond to the support shaft; The locking mechanism includes a locking rod that passes through the support cylinder and slides and guides the support cylinder, a plurality of locking blocks that are spaced vertically on both sides of the locking rod, a locking tooth integrally formed on the outer end face of the locking block, and a plurality of locking rings that are spaced vertically on the outer wall of the connecting cylinder and correspond to the position of the locking tooth; wherein, a plurality of locking grooves with shapes corresponding to the locking tooth are evenly spaced on the outer wall of the locking ring so that the locking tooth is confined in the locking groove.

2. The road construction noise-reducing fence according to claim 1, characterized in that, A sound-absorbing cotton board is fixed in the middle of the fence body.

3. The road construction noise-reducing fence according to claim 1, characterized in that, The inner end face of the locking block is integrally formed with a fixing block; the outer wall of the locking rod is recessed with a fixing groove corresponding to the fixing block, and the fixing block is fixed in the fixing groove by bolts.

4. The road construction noise-reducing fence according to claim 1, characterized in that, The support cylinder has a clearance slot on its side wall near the connecting cylinder, and the height of the clearance slot is greater than twice the height of the locking block. When the locking block abuts against the bottom wall of the clearance slot, the locking tooth is located in the locking groove, thus hindering the rotation of the fence body. When the locking block abuts against the top wall of the clearance slot, the locking tooth is located above the locking groove, thus allowing the fence body to rotate freely.

5. The road construction noise-reducing fence according to claim 1, characterized in that, The locking ring is C-shaped, with fixed plates integrally formed at both ends. After the locking ring is fitted onto the outer wall of the connecting cylinder, bolts are used to pass through the two fixed plates and the fence body to fix the locking ring onto the outer wall of the connecting cylinder.

6. The road construction noise-reducing fence according to claim 1, characterized in that, The road construction noise reduction fence also includes a limiting plate that is fixed to the top of the support cylinder with bolts. The limiting plate has a clearance hole in the middle that corresponds to the shape of the locking rod. A vertically downward limiting shaft is symmetrically fixed at the bottom of the limiting plate and is inserted into the top of the connecting cylinder.

7. The road construction noise-reducing fence according to claim 1, characterized in that, The height of the support cylinder is greater than the height of the connecting cylinder.

8. The road construction noise-reducing fence according to claim 1, characterized in that, The top of the locking rod is integrally formed with a counterweight.

9. The road construction noise-reducing fence according to claim 1, characterized in that, A fastening bolt is threaded onto the outer wall of the support cylinder. When the fastening bolt is tightened, the inner end of the fastening bolt abuts against the outer wall of the locking rod.

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