Waterproof device for connection position of photovoltaic support stand column and pile foundation
By using a symmetrical structure of the pressure cap and water-blocking mounting base, combined with a sealing ring, the waterproofing problem at the connection between the photovoltaic support column and the pile foundation is solved, enabling quick disassembly and replacement, and improving the waterproofing effect and the stability of the support.
Patent Information
- Application Number
- CN202423105055.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing waterproofing device at the connection between the photovoltaic support column and the pile foundation cannot completely cover the connection when it is installed or damaged, resulting in rainwater corrosion and affecting the stability of the support.
The symmetrical structure design of the pressure cap and water-blocking mounting base, combined with the sealing ring, enables quick disassembly and replacement, ensuring a sealing effect. The staggered joints cover the connection points, adapting to the adjustment range.
It achieves effective waterproofing at the connection between the photovoltaic support column and the pile foundation, preventing rainwater erosion, improving sealing and stability, and supporting rapid installation and replacement.
Smart Images

Figure CN223553250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproofing technology for photovoltaic brackets, and in particular to a waterproofing device for the connection between the photovoltaic bracket column and the pile foundation. Background Technology
[0002] The waterproofing device at the connection between the photovoltaic support column and the pile foundation is a detachable waterproofing device made of rubber used at the connection between the front and rear columns of the photovoltaic double column support and the pile foundation.
[0003] A search revealed that patent application number CN202321713670.9 discloses a waterproof gasket for a column and a photovoltaic module mounting frame. The waterproof gasket for the column includes a main sleeve and a water-retaining cover; the water-retaining cover is connected to the main sleeve and is arranged around the outer edge of the main sleeve; wherein, the main sleeve is used to fit onto the column, and the water-retaining cover extends outward along the radial direction of the column and covers the connection between the column and the foundation.
[0004] However, the waterproofing devices in the aforementioned patents and existing waterproofing devices cannot adapt to the adjustment range when the front and rear columns of the photovoltaic support are connected to the pile foundation. During on-site installation, there are always problems such as not being able to completely cover the connection after installation, and not being able to replace it when damaged. They cannot achieve an effective rainproof effect, which can easily cause rainwater corrosion at the connection between the column and the pile foundation, affecting the overall stability of the photovoltaic support.
[0005] Therefore, a waterproof device for the connection between the photovoltaic support column and the pile foundation is proposed to solve the above problems. Utility Model Content
[0006] In order to solve the above-mentioned problems in the existing technology, this utility model provides a waterproof device for the connection between the photovoltaic support column and the pile foundation.
[0007] The technical solution of this utility model is as follows:
[0008] A waterproof device for the connection between a photovoltaic support column and a pile foundation includes a photovoltaic support column and a foundation column. The photovoltaic support column is inserted into the foundation column and fixed by column fixing bolts. A waterproof device is installed at the connection between the photovoltaic support column and the foundation column. The waterproof device includes a pressure cap, a sealing ring, and a water-blocking mounting seat. The pressure cap and the water-blocking mounting seat are spliced and fixed with a completely symmetrical structure. A sealing ring is set between the pressure cap and the water-blocking mounting seat and fits against the outer wall of the photovoltaic support column. The pressure cap and the water-blocking mounting seat are installed with staggered joints.
[0009] Preferably, the gland is formed by splicing and fixing two completely symmetrical semi-circular structures. The splice is fixed by the matching positioning pin A and positioning pin hole A. The gland also includes a backstop hook, a clamping ring and an inner positioning protrusion. The gland has a clamping ring inside to form a hollow annular cavity. The bottom outer ring edge of the gland has a backstop hook to engage with the backstop groove in the water-blocking mounting seat. An inner positioning protrusion is provided on the inner wall of the clamping ring cavity to abut against the sealing ring. Several openings are longitudinally opened on the outer wall of the gland for disassembly and assembly of the gland.
[0010] Preferably, the water-blocking mounting base is formed by splicing together a symmetrical base body with a water-blocking umbrella skirt extending from the bottom of the base body. The splice is fixed by a positioning pin B and a positioning pin hole B. The bottom inner ring of the base body has a positioning protrusion for abutting the top of the foundation column. The top of the base body is installed in the inner cavity of the pressure ring of the pressure cap. The outer wall of the base body has a circumferential anti-reverse groove that matches the anti-reverse hook in the pressure cap. The inner wall of the base body abuts against the sealing ring.
[0011] Preferably, the inner wall of the seat has an inner conical surface to closely seal the outer wall of the sealing ring.
[0012] Preferably, the outer wall of the sealing ring is an outer conical surface.
[0013] This utility model has the following beneficial effects: The pressure cap and water-blocking mounting base are both assembled and fixed with a completely symmetrical structure, allowing for quick disassembly of the entire device. Furthermore, it protects the connection between the photovoltaic support column and the foundation column from rainwater erosion during the installation of the front and rear photovoltaic columns. Damage during photovoltaic bracket installation and subsequent operation can be easily replaced. The water-blocking umbrella structure of this device can completely cover the connection between the photovoltaic support column and the foundation column, accommodating the adjustment range when connecting the front and rear photovoltaic bracket columns to the pile foundation, effectively preventing rainwater erosion. Additionally, a sealing ring is added between the pressure cap and the water-blocking mounting base, greatly improving the sealing and waterproofing effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure and installation of this utility model;
[0015] Figure 2 This is an exploded view of the overall structure of this utility model;
[0016] Figure 3 This is a cross-sectional view of the overall structure of this utility model.
[0017] Figure 4 This is an exploded structural diagram of the water-blocking mounting base of this utility model;
[0018] Figure 5 This is an exploded structural diagram of the pressure cap of this utility model;
[0019] Figure 6 This is a schematic diagram of the pressure cap structure from below.
[0020] The reference numerals in the figure are as follows:
[0021] 1. Photovoltaic support column; 2. Foundation column; 3. Pressure cap; 301. Positioning pin A; 302. Positioning pin hole A; 303. Anti-reverse hook; 304. Compression ring; 305. Opening seam; 306. Inner positioning protrusion; 4. Sealing ring; 5. Water-blocking mounting base; 501. Positioning pin B; 502. Positioning pin hole B; 503. Positioning protrusion; 504. Anti-reverse groove; 505. Water-blocking umbrella skirt; 506. Base body; 6. Column fixing bolt. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] See Figures 1 to 6 A waterproof device for the connection between a photovoltaic support column and a pile foundation includes a photovoltaic support column 1 and a foundation column 2. The photovoltaic support column 1 is inserted into the foundation column 2 and fixed by column fixing bolts 6. A waterproof device is installed at the connection between the photovoltaic support column 1 and the foundation column 2. The waterproof device includes a pressure cap 3, a sealing ring 4, and a water-blocking mounting seat 5. The pressure cap 3 and the water-blocking mounting seat 5 are spliced and fixed with a completely symmetrical structure. The sealing ring 4 is set between the pressure cap 3 and the water-blocking mounting seat 5 and fits against the outer wall of the photovoltaic support column 1. The pressure cap 3 and the water-blocking mounting seat 5 are installed with staggered joints.
[0024] See Figure 5 and Figure 6 The pressure cap 3 is formed by splicing and fixing two completely symmetrical semi-circular structures. The splice is fixed by the positioning pin A301 and positioning pin hole A302. The pressure cap 3 also includes a backstop hook 303, a clamping ring 304 and an inner positioning protrusion 306. The pressure cap 3 has a clamping ring 304 inside to form a hollow annular cavity. The outer ring edge of the bottom of the pressure cap 3 has a backstop hook 303 to engage with the backstop groove 504 in the water-blocking mounting seat 5. An inner positioning protrusion 306 is provided on the inner wall of the cavity of the clamping ring 304 to abut against the sealing ring 4. Several openings 305 are longitudinally opened on the outer wall of the pressure cap 3 for the disassembly and assembly of the pressure cap 3.
[0025] See Figure 3 and Figure 4The water-blocking mounting base 5 is formed by fixing and splicing together a symmetrical base body 506 with a water-blocking umbrella skirt 505 extending from the bottom of the base body. The splice is fixed by the positioning pin B501 and positioning pin hole B502. The bottom inner ring of the base body 506 is provided with a positioning protrusion 503 for abutting against the top of the foundation column 2. The top of the base body 506 is installed in the inner cavity of the clamping ring 304 of the pressure cover 3. The outer wall of the base body 506 is provided with a circumferential anti-reverse groove 504 that matches the anti-reverse hook 303 in the pressure cover 3. The inner wall of the base body 506 abuts against the sealing ring 4.
[0026] Furthermore, the inner wall of the seat 506 is an inner conical surface used to tightly seal the outer wall of the sealing ring 4, and the outer wall of the sealing ring 4 is an outer conical surface. As a result, the two can fit together more tightly, which is beneficial to improving the overall waterproof sealing effect.
[0027] The working principle of this utility model:
[0028] In this invention, firstly, the photovoltaic support column 1 is inserted into the foundation column 2, and then the two are fixed together using column fixing bolts 6. A waterproof device is installed at the connection between the photovoltaic support column 1 and the foundation column 2. The waterproof device includes a pressure cap 3, a sealing ring 4, and a water-blocking mounting seat 5. Both the pressure cap 3 and the water-blocking mounting seat 5 are spliced and fixed with a completely symmetrical structure, achieving the purpose of quick disassembly of the entire device. Furthermore, it protects the connection between the photovoltaic support column 1 and the foundation column 2 from rainwater erosion during the installation of the front and rear photovoltaic columns. Damage occurring during the photovoltaic bracket installation process and subsequent operation can be replaced. The water-blocking skirt 505 of this device can completely cover the connection between the photovoltaic support column 1 and the foundation column 2, adapting to the adjustment range when the front and rear photovoltaic columns are connected to the pile foundation, effectively achieving the effect of preventing rainwater erosion.
[0029] Meanwhile, a sealing ring 4 is set between the pressure cap 3 and the water-blocking mounting seat 5 and fits against the outer wall of the photovoltaic support column 1. The pressure cap 3 and the water-blocking mounting seat 5 are installed with staggered joints, which is more conducive to the stable fixing relationship between the two.
[0030] A sealing ring 4 is added between the pressure cap 3 and the water-blocking mounting seat 5. The inner wall of the seat body 506 is an inner conical surface for tightly sealing the outer wall of the sealing ring 4. The outer wall of the sealing ring 4 is an outer conical surface. Therefore, the two can fit more tightly, which is beneficial to improving the overall waterproof sealing effect.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A waterproof device for the connection between a photovoltaic support column and a pile foundation, comprising a photovoltaic support column (1) and a foundation column (2), wherein the photovoltaic support column (1) is inserted into the foundation column (2) and fixed by column fixing bolts (6), characterized in that: A waterproof device is installed at the connection between the photovoltaic support column (1) and the foundation column (2). The waterproof device includes a pressure cap (3), a sealing ring (4), and a water-blocking mounting seat (5). The pressure cap (3) and the water-blocking mounting seat (5) are spliced and fixed with a completely symmetrical structure. The sealing ring (4) is set between the pressure cap (3) and the water-blocking mounting seat (5) and fits against the outer wall of the photovoltaic support column (1). The pressure cap (3) and the water-blocking mounting seat (5) are installed with staggered joints.
2. A waterproof device for the connection between a photovoltaic support column and a pile foundation according to claim 1, characterized in that: The pressure cap (3) is formed by splicing and fixing two completely symmetrical semi-circular structures. The splice is fixed by the positioning pin A (301) and positioning pin hole A (302). The pressure cap (3) also includes a backstop hook (303), a clamping ring (304) and an inner positioning protrusion (306). The pressure cap (3) has a clamping ring (304) inside to form a hollow annular cavity. The outer ring edge of the bottom of the pressure cap (3) is provided with a backstop hook (303) for engaging with the backstop groove (504) in the water-blocking mounting seat (5). The inner positioning protrusion (306) is provided on the inner wall of the cavity of the clamping ring (304) for abutting the sealing ring (4). The outer wall of the pressure cap (3) has several longitudinal openings (305) for disassembly and assembly of the pressure cap (3).
3. A waterproof device for the connection between a photovoltaic support column and a pile foundation according to claim 1, characterized in that: The water-blocking mounting base (5) is formed by fixing and splicing a symmetrical base body (506) with a water-blocking umbrella skirt (505) extending from the bottom of the base body. The splice is fixed by the positioning pin B (501) and positioning pin hole B (502). The bottom inner ring of the base body (506) is provided with a positioning protrusion (503) for abutting the top of the foundation column (2). The top of the base body (506) is installed in the inner cavity of the clamping ring (304) of the pressure cover (3). The outer wall of the base body (506) is provided with a back-locking groove (504) that matches the back-locking hook (303) in the pressure cover (3). The inner wall of the base body (506) abuts against the sealing ring (4).
4. A waterproof device for the connection between a photovoltaic support column and a pile foundation according to claim 3, characterized in that: The inner wall of the seat (506) is an inner conical surface used to tightly seal the outer wall of the sealing ring (4).
5. A waterproof device for the connection between a photovoltaic support column and a pile foundation according to claim 4, characterized in that: The outer wall of the sealing ring (4) is an outer conical surface.
Citation Information
Patent Citations
Stand column waterproof gasket and photovoltaic module mounting frame
CN219954204U