Protective fence for photovoltaic area

Abstract

The invention discloses a protective fence for a photovoltaic area. The protective fence comprises a lower insertion rod assembly; the mounting rod is rotationally connected to the top of the lower insertion rod assembly; the fence nets are detachably arranged between the adjacent mounting rods; the lower inserting rod assembly comprises a barrel, a conical head fixedly arranged at the bottom of the barrel, a plurality of sealing blocks which are fixedly arranged in an inner cavity of the barrel and divide the inner cavity of the barrel into a plurality of cavities, a hollow screw rotationally arranged in the barrel, and a tip cone arranged in the barrel in a limited sliding mode in the axial direction of the barrel. The anchoring plates are obliquely inserted into the barrel in a surrounding mode, one ends of the anchoring plates abut against the tip cone, the liquid squeezing holes are formed in the outer wall of the barrel, and the liquid conveying holes are formed in the hollow screw. After the cylinder body is inserted into the soil body, curing liquid is injected into the cylinder body through the hollow screw rod, the curing liquid penetrates through the liquid squeezing hole and finally permeates into the soil body, the structural stability of the soil body is improved, the hollow screw rod is rotated, after a series of linkage effects, the anchoring plate is inserted into the soil body, the curing liquid in the cylinder body is squeezed into the soil body, and the inserting stability of the lower inserting rod assembly is improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic area protection, and in particular to a photovoltaic area protection fence. Background Art

[0002] Setting up protective fences in the photovoltaic area can effectively prevent unauthorized entry, reduce safety hazards, prevent animals from invading, and protect photovoltaic modules from damage. Therefore, it is necessary to plan and implement reasonable protective measures in the early stage of photovoltaic area construction.

[0003] The photovoltaic area protection fences currently on the market are mostly composed of evenly spaced posts (i.e. railings) and mesh materials (i.e. fences) fixed between adjacent posts. This structure not only meets the basic safety protection needs, but also has certain aesthetics and economy. However, in the actual installation process, especially in sites with complex geological conditions, such as collapsible loess areas, the traditional installation method has some disadvantages.

[0004] The traditional installation method of protective fences is to dig holes in the ground first, insert the railings, and then keep the railings in a vertical state by manually holding them or building auxiliary supports, then backfill and compact the soil, and finally connect the fences between adjacent railings. However, due to the loose structure and well-developed pores of collapsible loess, the strength is high when dry, but once it is soaked in water, the strength drops sharply, and it is easy to sink and deform under its own weight and external forces of the structure. This brings great challenges to the installation stability of protective fences, especially railings. The railings are prone to shaking and sinking when the land meets water, which is not conducive to the long-term use of protective fences.

[0005] To this end, the present application specifically proposes a photovoltaic area protection fence to solve the above technical problems. Summary of the invention

[0006] The main purpose of the present invention is to solve the above-mentioned deficiencies and provide a photovoltaic area protective fence to reduce the adverse effects of collapsible loess on the installation stability of the protective fence and facilitate installation and construction as a whole.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A photovoltaic area protective fence comprises: a lower insertion rod assembly for being inserted into the soil; an installation rod, which is threaded and screwed on the top of the lower insertion rod assembly; and a fence that is detachably arranged between adjacent installation rods. The lower insertion rod assembly comprises a cylinder, a cone head fixedly arranged at the bottom of the cylinder, a plurality of sealing blocks fixedly arranged in the inner cavity of the cylinder and dividing the inner cavity of the cylinder into a plurality of chambers, a hollow screw rod with one end being rotatably arranged at the bottom of the inner cavity of the cylinder and the other end extending out of the top of the cylinder, a top cone which is slidably arranged in each chamber of the cylinder along the axial direction of the cylinder and is penetrated by the hollow screw rod and threaded, a plurality of anchor plates which are obliquely inserted around the outer wall of each chamber of the cylinder and abut against the top cone at one end, a liquid extrusion hole which is penetrated through the outer wall of each chamber of the cylinder, and a plurality of liquid infusion holes which are provided on the hollow screw rod.

[0009] Furthermore, the connecting part between the hollow screw and the sealing block is a bare rod, and the two are sealed and connected, and a sealing ring is clamped at the bottom of the top cone, and the sealing ring abuts against the inner cavity of the cylinder.

[0010] Furthermore, a plurality of guide and limit strips parallel to the axial direction of the cylinder are fixedly arranged on the side wall of each chamber of the cylinder, and a groove engaged with the guide and limit strips is formed on the top cone.

[0011] Furthermore, a connecting thread is provided at the top of the hollow screw, a hexagonal plug is screwed onto the connecting thread, and the rotation direction of the connecting thread is opposite to the rotation direction of the thread on the hollow screw below the connecting thread.

[0012] Furthermore, a nozzle is provided on the side wall of the barrel portion where the top of the hollow screw extends out, and a one-way valve is provided in the middle section of the nozzle. The one-way valve allows flow from the external end of the nozzle to the connecting end of the nozzle and the hollow screw.

[0013] Furthermore, each segment of the hollow screw in each chamber is provided with an infusion hole, and the infusion hole corresponding to each chamber is located above the top cone in the chamber.

[0014] Furthermore, the abutting end of the anchor plate and the top cone is inclined downward, a roller is rotatably provided at the abutting end of the anchor plate and the top cone, and a flat bottom groove abutting against the roller is provided on the side wall of the top cone.

[0015] Furthermore, a cone groove which is plugged and matched with the top of the top cone is formed at the bottom of the sealing block, and a receiving groove for avoiding the anchor plate is formed at the bottom of the sealing block corresponding to the anchor plate.

[0016] Furthermore, a plurality of mounting plates are evenly arranged on the outer wall of the mounting rod, a plurality of arc-shaped mounting holes are evenly arranged on the mounting plates, and connecting ears are fixedly arranged at positions corresponding to the mounting plates on both sides of the fence.

[0017] The beneficial effects of the present invention are embodied in:

[0018] The present invention provides a handrail composed of a mounting rod and a lower insertion rod assembly which are screwed together. The lower insertion rod assembly is first firmly inserted into the soil, and then the mounting rod is screwed onto the lower insertion rod assembly, so that there is no need to fix the handrail by hand or build additional supports during the fixing process of the handrail. The present invention provides a lower insertion rod assembly composed of a cylinder, a cone head, a sealing block, a hollow screw and other structures. After the lower insertion rod assembly is inserted into the soil, a solidifying liquid is injected into the cylinder through the hollow screw, and the solidifying liquid finally penetrates into the soil through the extrusion hole, thereby improving the structural stability of the soil. The hollow screw is rotated, and after a series of structural linkage actions, the anchor plate is inserted into the soil, and the solidifying liquid in the cylinder is squeezed into the soil, thereby further improving the stability of the lower insertion rod assembly as a whole in the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall appearance of the lower rod assembly of the present invention;

[0023] Figure 4 It is a half-section schematic diagram of the cylinder body and cone head of the lower insertion rod assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the lower rod assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of the lower rod assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the cone head and the anchor plate of the present invention;

[0027] Figure 8 It is a schematic diagram of the plugging state of the top cone and the sealing block of the present invention;

[0028] Fig. 9 It is a schematic diagram of the top structure of the lower rod assembly of the present invention;

[0029] Fig.10 It is a schematic diagram of the installation of the installation rod and the fence of the present invention.

[0030] In the figure: 1. mounting rod; 2. lower plug rod assembly; 21. cylinder; 22. cone head; 23. sealing block; 24. hollow screw; 25. top cone; 26. anchor plate; 27. extrusion hole; 28. infusion hole; 3. fence; 4. sealing ring; 5. guide limit strip; 6. slot; 7. hexagonal plugging cap; 8. nozzle; 9. one-way valve; 10. roller; 11. flat bottom groove; 12. cone groove; 13. accommodating groove; 14. mounting plate; 15. arc-shaped mounting hole; 16. connecting ear. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] like Figure 1-10 As shown, the present invention provides a protective fence, which is applied to the protection of photovoltaic areas, specifically a photovoltaic area protective fence, comprising: a lower insertion rod assembly 2, which is used to be inserted into the soil; an installation rod 1, which is threaded and screwed on the top of the lower insertion rod assembly 2; a fence 3, which is detachably arranged between adjacent installation rods 1, and the lower insertion rod assembly 2 comprises a barrel 21, a cone head 22 fixedly arranged at the bottom of the barrel 21, a plurality of sealing blocks 23 fixedly arranged in the inner cavity of the barrel 21 and dividing the inner cavity of the barrel 21 into a plurality of chambers, a hollow screw 24 with one end rotatably arranged at the bottom of the inner cavity of the barrel 21 and the other end extending out of the top of the barrel 21, a top cone 25 which is slidably arranged in each chamber of the barrel 21 along the axial direction of the barrel 21 and is penetrated by the hollow screw 24 and screwed, a plurality of anchor plates 26 which are obliquely inserted around the outer wall of each chamber of the barrel 21 and one end of which is abutted against the top cone 25, a liquid squeezing hole 27 penetrating the outer wall of each chamber of the barrel 21, and a plurality of liquid infusion holes 28 arranged on the hollow screw 24.

[0033] Before use, the installation rod 1, the lower rod assembly 2 and the fence 3 are in a disassembled state, and the anchor plate 26 in the lower rod assembly 2 is in a retracted state in the cylinder 21. When in use, first insert the cylinder 21 into the soil at the designated position with the aid of the cone head 22, and ensure that the thread on the top of the cylinder 21 is exposed. A hammer or a tamping tool can be used to assist when inserting the cylinder 21. Then use a grouting pump to inject solidifying liquid into the hollow screw 24. The solidifying liquid flows into each chamber of the cylinder 21 through the infusion hole 28, and passes through the squeezing hole 27 under the pressure of the grouting pump, and penetrates into the soil around the cylinder 21. Then turn off and disassemble the grouting pump, turn the hollow screw 24, and drive the top cone 25 in each chamber to move upward. The top cone 25 During the upward movement, the anchor plate 26 abutting against it is extended toward the outside of the cylinder 21, so that the anchor plate 26 is obliquely inserted into the soil to play an anchoring role. When the anchor plate 26 moves upward, the distance between it and the sealing block 23 is continuously reduced, and the solidifying liquid between the two is pressed out of the cylinder 21 from the squeezing hole 27, so that the solidifying liquid in the cylinder 21 can penetrate into the soil more efficiently and deeply. After the solidifying liquid fully reacts with the soil, the installation rod 1 is screwed to the lower insertion rod assembly 2, and the fence 3 is fixedly connected between the adjacent installation rods 1, and the installation of the protective fence is completed. Under the solidification effect of the solidifying liquid on the soil around the cylinder 21 and the anchoring effect of the anchor plate 26, the lower insertion rod assembly 2 can be inserted into the soil for a long time and stably, ensuring the overall installation stability of the protective fence.

[0034] It is worth explaining that injecting a curing agent into the soil is a conventional method for treating collapsible loess foundations, called the chemical fixation method. Chemical reagents such as calcium chloride, sodium silicate, and sodium hydroxide are injected into the soil to react chemically with the components in the soil to form a stable solidified body, thereby improving the strength and stability of the soil. The principle is not described in detail here.

[0035] In one embodiment, the connecting part between the hollow screw 24 and the sealing block 23 is a bare rod, and the two are sealed and connected. A sealing ring 4 is clamped at the bottom of the top cone 25, and the sealing ring 4 abuts against the inner cavity of the cylinder 21.

[0036] With this design, by providing a sealing ring at the insertion gap between the hollow screw 24 and the sealing block 23, the sealed connection between the two can be easily achieved, thereby preventing the threads on the hollow screw 24 from affecting the sealing of the connection between the two. The sealing ring 4 ensures the sealing between the top cone 25 and the inner wall of the cylinder 21. When the top cone 25 moves toward the sealing block 23 to squeeze the solidifying liquid between the two, the solidifying liquid can only be squeezed out from the squeezing hole 27, and will not overflow from the insertion gap between the hollow screw 24 and the sealing block 23 or the gap between the top cone 25 and the inner wall of the cylinder 21.

[0037] In one embodiment, a plurality of guide and limit strips 5 parallel to the axis of the cylinder 21 are fixedly provided on the side wall of each chamber of the cylinder 21 , and a slot 6 engaging with the guide and limit strips 5 is formed on the top cone 25 .

[0038] With this design, under the engagement of the engaging groove 6 and the guide limit strip 5 , the top cone 25 cannot rotate around the axis of the barrel 21 , and when the hollow screw 24 is rotated, the top cone 25 can move axially along the hollow screw 24 .

[0039] In one embodiment, a connecting thread is provided at the top of the hollow screw 24 , and a hexagonal plug 7 is screwed onto the connecting thread. The rotation direction of the connecting thread is opposite to the rotation direction of the thread below the hollow screw 24 .

[0040] Since the hollow screw 24 inevitably leaves a processing hole at the top during production, the hexagonal plugging cap 7 is used to plug it, which can prevent the solidifying liquid from overflowing from the processing hole at the top when the solidifying liquid is input into the hollow screw 24 using a grouting pump. At the same time, the hexagonal plugging cap 7 can also be used as a clamping part for rotating the hollow screw 24. The construction personnel can easily rotate the hollow screw 24 by clamping the hexagonal plugging cap 7 with a wrench. The thread on the hollow screw 24 located below the connecting thread is screwed with the top cone 25. In order to ensure that the hexagonal plugging cap 7 is not loosened when the hollow screw 24 is rotated to drive the top cone 25 to rise, the rotation directions of the two threads need to be opposite.

[0041] In one embodiment, a nozzle 8 is provided on the side wall of the portion of the hollow screw 24 extending out of the barrel 21 at the top, and a one-way valve 9 is provided in the middle section of the nozzle 8. The one-way valve 9 allows flow from the external end of the nozzle 8 to the connecting end of the nozzle 8 and the hollow screw 24.

[0042] With this design, when injecting solidifying liquid into the hollow screw 24, the output end of the grouting pump is connected to the nozzle 8. When the grouting pump is performing grouting, the solidifying liquid entering the barrel 21 cannot penetrate into the soil through the squeezing hole 27 in the first time. Therefore, there is a certain internal pressure in the inner cavity of the barrel 21 and the solidifying liquid in the hollow screw 24. This internal pressure can promote the solidifying liquid to penetrate into the soil faster. However, once the grouting pump is turned off and disconnected from the nozzle 8, the solidifying liquid may overflow from the nozzle 8 under the action of the internal pressure. Therefore, the one-way valve 9 is provided to avoid this phenomenon. In addition, it is also avoided that the solidifying liquid overflows from the nozzle 8 when the top cone 25 moves upward to squeeze the solidifying liquid.

[0043] In one embodiment, each segment of the hollow screw 24 in each chamber is provided with an infusion hole 28 , and the infusion hole 28 corresponding to each chamber is located above the top cone 25 in the chamber.

[0044] This arrangement ensures that the solidifying liquid can be transported to each chamber in the barrel 21 through the infusion hole 28, and at the same time ensures that the solidifying liquid is located between a group of sealing blocks 23 and the top cone 25 in a single chamber, so as to facilitate the subsequent upward movement of the top cone 25 to squeeze the solidifying liquid out of the extrusion hole 27.

[0045] In one embodiment, the abutting end of the anchor plate 26 and the top cone 25 is inclined downward, and a roller 10 is rotatably provided at the abutting end of the anchor plate 26 and the top cone 25 . A flat bottom groove 11 abutting against the roller 10 is opened on the side wall of the top cone 25 .

[0046] With this design, when the top cone 25 moves upward, the anchor plate 26 is extended toward the outside of the cylinder 21, so that the anchor plate 26 is obliquely inserted into the soil, thereby improving the stability of the insertion of the cylinder 21. The friction between the top cone 25 and the anchor plate 26 is reduced by the contact between the roller 10 and the flat bottom groove 11, so that the extension process of the top cone 25 to the anchor plate 26 is smoother.

[0047] In one embodiment, a cone groove 12 is provided at the bottom of the sealing block 23 to be plugged into the top of the top cone 25 , and a receiving groove 13 for accommodating the anchor plate 26 is provided at the bottom of the sealing block 23 corresponding to the anchor plate 26 .

[0048] With this design, when the top cone 25 moves upward to squeeze the solidifying liquid, the top of the top cone 25 can be inserted into the cone groove 12, reducing the gap between the top cone 25 and the sealing block 23, so that the solidifying liquid between the two can be more fully squeezed out of the cylinder 21. By providing the accommodating groove 13, the interference of the anchor plate 26 on the insertion process of the top cone 25 and the sealing block 23 is weakened, thereby further reducing the gap between the two when they are inserted.

[0049] In one embodiment, a plurality of mounting plates 14 are evenly arranged on the outer wall of the mounting rod 1 , a plurality of arc-shaped mounting holes 15 are evenly arranged on the mounting plates 14 , and connecting ears 16 are fixedly provided on both sides of the fence 3 corresponding to the mounting plates 14 .

[0050] With this design, after aligning the hole of the connecting ear 16 with the arc-shaped mounting hole 15 on the mounting plate 14, the connection between the mounting rod 1 and the fence 3 can be completed by fixing with bolts. No matter how the mounting rod 1 rotates when being screwed to the lower plug rod assembly 2, as long as the arc-shaped mounting holes 15 are densely distributed, the connecting ear 16 can always be aligned with the arc-shaped mounting hole 15 on the mounting plate 14, thereby avoiding the connection of the connecting ear 16 being affected by the uncertainty of the rotation angle of the mounting rod 1 when being screwed.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, "multiple" means two or more. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A photovoltaic area protection fence, characterized in that: include: A lower insertion rod assembly (2) is used for being inserted into the soil; The mounting rod (1) is threadedly connected to the top of the lower insertion rod assembly (2); the fence (3) is detachably arranged between adjacent mounting rods (1); the lower insertion rod assembly (2) comprises a cylinder (21), a cone head (22) fixedly arranged at the bottom of the cylinder (21), a plurality of sealing blocks (23) fixedly arranged in the inner cavity of the cylinder (21) and dividing the inner cavity of the cylinder (21) into a plurality of chambers, one end of which is rotatably arranged at the bottom of the inner cavity of the cylinder (21) and the other end of which protrudes out of the cylinder (21). A hollow screw (24) at the top, a top cone (25) which is slidably arranged in each chamber of the barrel (21) along the axial direction of the barrel (21) and is penetrated by the hollow screw (24) and screwed together, a plurality of anchor plates (26) which are obliquely inserted around the outer wall of each chamber of the barrel (21) and abut against the top cone (25) at one end, a liquid extrusion hole (27) which is penetrated and opened on the outer wall of each chamber of the barrel (21), and a plurality of liquid infusion holes (28) opened on the hollow screw (24).

2. A photovoltaic area protection fence as claimed in claim 1, characterized in that: The connecting part between the hollow screw (24) and the sealing block (23) is a bare rod, and the two are sealed and connected. A sealing ring (4) is clamped at the bottom of the top cone (25), and the sealing ring (4) is in contact with the inner cavity of the cylinder (21).

3. A photovoltaic area protection fence as claimed in claim 2, characterized in that: A plurality of guide and limit strips (5) parallel to the axis of the cylinder (21) are fixedly arranged on the side wall of each chamber of the cylinder (21), and a clamping groove (6) engaged with the guide and limit strips (5) is provided on the top cone (25).

4. A photovoltaic area protection fence as claimed in claim 3, characterized in that: A connecting thread is provided at the top of the hollow screw (24), a hexagonal plug (7) is screwed onto the connecting thread, and the direction of rotation of the connecting thread is opposite to the direction of rotation of the thread below the connecting thread on the hollow screw (24).

5. A photovoltaic area protection fence as claimed in claim 4, characterized in that: A nozzle (8) is provided on the side wall of the portion of the hollow screw (24) extending out of the barrel (21) at the top thereof, and a one-way valve (9) is provided in the middle section of the nozzle (8). The one-way valve (9) allows flow from the external end of the nozzle (8) to the connecting end of the nozzle (8) and the hollow screw (24).

6. A photovoltaic area protection fence as claimed in claim 5, characterized in that: Each segment of the hollow screw (24) in each chamber is provided with an infusion hole (28), and the infusion hole (28) corresponding to each chamber is located above the top cone (25) in the chamber.

7. A photovoltaic area protection fence as claimed in claim 6, characterized in that: The abutting end of the anchor plate (26) and the top cone (25) is inclined downward, and a roller (10) is rotatably provided at the abutting end of the anchor plate (26) and the top cone (25), and a flat bottom groove (11) abutting against the roller (10) is provided on the side wall of the top cone (25).

8. A photovoltaic area protection fence as claimed in claim 7, characterized in that: The bottom of the sealing block (23) is provided with a cone groove (12) which is plugged into and matched with the top of the top cone (25), and the bottom of the sealing block (23) corresponding to the anchor plate (26) is provided with an accommodation groove (13) for avoiding the anchor plate (26).

9. A photovoltaic area protection fence as claimed in claim 8, characterized in that: A plurality of mounting plates (14) are evenly arranged on the outer wall of the mounting rod (1), a plurality of arc-shaped mounting holes (15) are evenly arranged around the mounting plates (14), and connecting ears (16) are fixedly arranged at positions corresponding to the mounting plates (14) on both sides of the fence (3).

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