Green belt water permeation isolation device for collapsible loess treatment
By designing a water penetration isolation device for the descent loess treatment including green belt isolation pool, soil locking assembly, adjustment assembly, trigger assembly and drainage assembly, the problem of foundation soil collapse caused by the lack of water penetration isolation in the green belt in the descent loess area is solved, and more effective water penetration control and foundation stability improvement are achieved.
Patent Information
- Application Number
- CN202420902165.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The green belts in the wet loess area are prone to collapse of the foundation soil due to the lack of water seepage isolation treatment.
A water penetration isolation device for the treatment of wet loess is designed, including a green belt isolation pool, soil locking assembly, adjustment assembly, trigger assembly and drainage assembly. Through the synergy of these components, water penetration and drainage are controlled to prevent the rapid collapse of the soil.
It effectively reduces the uneven settlement of foundation soil due to water penetration, reduces the losses of supporting facilities, and improves the isolation effect of water penetration.
Smart Images
Figure CN222632345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water infiltration and isolation of green belts for processing collapsible loess, in particular to a water infiltration and isolation device of green belts for processing collapsible loess. Background Art
[0002] The collapsible loess characteristics can easily cause foundation soil collapse. Before construction, the outdoor foundation soil needs to be treated to eliminate the collapsible nature of the loess.
[0003] The green belts in traditional collapsible loess areas are often infiltrated by water, and the soil in the green belts is not compacted or treated, which is easily infiltrated by water. The green belts are not treated to isolate them from water infiltration, which can easily lead to the collapse of the foundation soil.
[0004] In order to solve the above problems, the present application proposes a green belt water infiltration isolation device for treating collapsible loess. Utility Model Content
[0005] The utility model aims to provide a green belt water penetration isolation device for collapsible loess treatment, so as to solve the problem that the green belts in the collapsible loess area in the prior art are not treated with water penetration isolation.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a green belt water infiltration isolation device for treating collapsible loess, comprising a green belt isolation pool, a soil locking component is installed on the inner side of the green belt isolation pool, a support plate is installed on the soil locking component, an adjustment component is provided under the support plate, a trigger component is installed on one side of the adjustment component, a drainage component is installed under the green belt isolation pool, and a connecting component is installed on the green belt isolation pool.
[0007] Furthermore, the soil locking assembly includes side panels, hanging rods, blocking nets and side leakage plates. Two of the side panels are fixedly connected to the inner side of the green belt isolation pool. The inner walls of the two side panels are fixedly connected to the support plate. The two side panels close to each other are fixedly connected to the hanging rods, and the blocking nets are hung on the hanging rods. A leakage groove is opened at the top of the side panel, and the side leakage plate is fixedly connected to the inner wall of the leakage groove.
[0008] Furthermore, the height of the side leakage plate is 10 cm higher than the height of the leakage groove of the side plate, and the side leakage plate is provided with side flow holes penetrating the left and right sides of the side leakage plate.
[0009] Furthermore, the left and right ends of the barrier are respectively fitted with the two soil locking components, the front and rear ends of the barrier are respectively fitted with the front inner wall and the rear inner wall of the green belt isolation pool, and the bottom end of the barrier is fitted with the support plate.
[0010] Furthermore, the adjustment component includes a sliding plate and a bottom plate, the bottom end between the two side plates is fixedly connected to the bottom plate, the top end of the bottom plate is slidably connected to the sliding plate, and the distance between the top end of the sliding plate and the bottom end of the support plate is 5 cm.
[0011] Furthermore, a plurality of drainage holes are provided on inner sides of the support plate, the sliding plate and the bottom plate, and the drainage holes of the support plate, the sliding plate and the bottom plate are aligned with each other.
[0012] Furthermore, the trigger assembly includes a support frame, a sliding rod, a collecting cylinder, a spring, a trigger button and a hydraulic rod. The support frame is fixedly connected to the inner side of the left end of the green belt isolation pool, the sliding rod is slidably connected to the inner side of the support frame, the collecting cylinder is fixedly connected to the top of the sliding rod, the spring is fixedly connected between the bottom end of the collecting cylinder and the support frame, the trigger button is provided directly below the sliding rod, the hydraulic rod is fixedly connected to the bottom end of the trigger button, the left end of the hydraulic rod is fixedly connected to the green belt isolation pool, a sliding groove is provided on the inner side of the side plate at the left end, the inner side wall of the sliding groove is slidably connected to the sliding plate, the left end of the sliding plate is fixedly connected to the output end of the hydraulic rod, and a reset hole is provided on the inner side wall of the bottom end of the collecting cylinder.
[0013] Furthermore, the drainage component includes a drainage pool, support rods and a drainage pipe. The drainage pool is fixedly connected to the bottom end of the green belt isolation pool. A number of support rods are fixedly connected between the inner wall of the bottom end of the drainage pool and the bottom plate. The drainage pipe is fixedly connected to the rear end face of the drainage pool, and the front end of the drainage pipe is interconnected with the drainage pool.
[0014] Furthermore, the connecting assembly includes a connecting block, a fixing rod and a plug, the connecting block is fixedly connected to the left end of the green belt isolation pool, a slot is provided at the right end of the green belt isolation pool, the outer side of the connecting block located at the right end is slidably connected to the slot of the green belt isolation pool located at the left end, a fixing hole is provided on the inner side of the connecting block, a slot is provided on the right side of the top end of the green belt isolation pool, the fixing rod is slidably connected to the inner side of the slot, the outer side of the fixing rod is slidably connected to the fixing hole, the plug is fixedly connected to the top of the fixing rod, a threaded hole is provided on the right side of the top end of the green belt isolation pool, the bottom end of the inner side wall of the threaded hole is communicated with the inner side wall of the slot, and the outer side of the plug is threadedly connected to the inner side wall of the threaded hole.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model provides a soil locking component, an adjusting component, a triggering component and a drainage component. If the rain is sudden and heavy, the water overflowing from the green belt isolation pool flows into the drainage pool through the soil locking component in the leakage groove, so that the soil in the green belt isolation pool will not be quickly infiltrated; if the heavy rain lasts for a long time, the water in the green belt isolation pool passes through the soil and flows out from the drainage hole, and the water flows into the drainage pool and is discharged from the drainage pipe; if it is light rain, the sliding plate and the bottom plate keep the drainage holes staggered, so that the water in the green belt isolation pool will not flow to the drainage pool through the sliding plate and the bottom plate; the light rain can be used to replenish the moisture of the soil in the green belt isolation pool on a daily basis, to meet the water replenishment needs in daily weather, and to improve the use effect of the device. The device greatly reduces the situation due to water infiltration, reduces the occurrence of uneven settlement of foundation soil due to water infiltration at the junction of green belts in collapsible loess areas, reduces the loss of supporting facilities, and improves the isolation effect of water infiltration. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of a green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0018] Figure 2 This is a schematic diagram of the installation structure of a soil locking component of a green belt water penetration isolation device for collapsible loess treatment according to the utility model;
[0019] Figure 3 It is a side view of the installation structure of the side leakage plate of the green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0020] Figure 4 This is a schematic diagram of the installation structure of an adjustment component of a green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0021] Figure 5 It is a schematic diagram of the installation structure of a triggering component of a green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0022] Figure 6 This is a schematic diagram of the installation structure of a drainage component of a green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0023] Figure 7 It is a top view of the installation structure of the support rod of the green belt water infiltration isolation device for collapsible loess treatment according to the utility model;
[0024] Figure 8 This is a schematic diagram of the installation structure of a connection component of a green belt water penetration isolation device for collapsible loess treatment according to the utility model;
[0025] In the figure:
[0026] 11. Green belt isolation pool; 12. Soil locking assembly; 121. Side plate; 122. Hanging rod; 123. Blocking net; 124. Side leakage plate; 13. Support plate; 14. Adjustment assembly; 141. Sliding plate; 142. Bottom plate; 15. Trigger assembly; 151. Support frame; 152. Sliding rod; 153. Collecting cylinder; 154. Spring; 155. Trigger button; 156. Hydraulic rod; 16. Drainage assembly; 161. Drainage pool; 162. Support rod; 163. Drainage pipe; 17. Connection assembly; 171. Connection block; 172. Fixing rod; 173. Plug. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all of the embodiments.
[0028] See also Figure 1-Figure 8 The utility model provides a technical solution: a green belt water infiltration isolation device for collapsible loess treatment, comprising a green belt isolation pool 11, a soil locking component 12 is installed inside the green belt isolation pool 11, a support plate 13 is installed on the soil locking component 12, an adjusting component 14 is provided below the support plate 13, a trigger component 15 is installed on one side of the adjusting component 14, a drainage component 16 is installed below the green belt isolation pool 11, and a connecting component 17 is installed on the green belt isolation pool 11. When the device is in use, a pre-buried pit is dug at the location where the green belt is to be set up, and a connecting pit connected to the municipal pipeline is also dug, and then the green belt isolation pool 11 is placed in the pre-buried pit, the drainage pool 161 is placed at the bottom of the pre-buried pit, and the drainage pipe 163 is placed in the connecting pit.
[0029] Furthermore, the soil locking assembly 12 includes a side plate 121, a hanging rod 122, a blocking net 123 and a side leakage plate 124. Two side plates 121 are fixedly connected to the inner side of the green belt isolation pool 11. The inner side walls of the two side plates 121 are fixedly connected to the support plate 13. The two side plates 121 are fixedly connected to the side close to each other with a hanging rod 122. The blocking net 123 is hung on the hanging rod 122. A leakage groove is opened at the top of the side plate 121. The inner side wall of the leakage groove is fixedly connected to the side leakage plate 124. The drainage pipe 163 is placed in the connection pit. , and then hang the blocking net 123 on the hanging rod 122, and the hanging rod 122 can be passed through the mesh of the blocking net 123, and the blocking net 123 can be laid flat, and soil can be poured on the blocking net 123 until the soil overflows the hanging rod 122. When pouring the soil into the blocking net 123, use a shovel to tap the soil to make it even and flat. If the rain is sudden and heavy, the water overflowing from the green belt isolation pool 11 will flow into the drainage pool 161 through the side leakage plate 124 in the leakage trough, so that the soil in the green belt isolation pool 11 will not be quickly infiltrated.
[0030] The height of the side leakage plate 124 is 10 cm higher than the height of the leakage groove of the side plate 121. The side leakage plate 124 is provided with side flow holes penetrating the left and right sides of the side leakage plate 124 to reduce the loss of soil in the green belt isolation pool 11.
[0031] The left and right ends of the blocking net 123 are respectively fitted with the two soil locking components 12, the front and rear ends of the blocking net 123 are respectively fitted with the front inner wall and the rear inner wall of the green belt isolation pool 11, and the bottom end of the blocking net 123 is fitted with the support plate 13, which is convenient for holding the soil and reducing the loss of soil.
[0032] The adjusting component 14 includes a sliding plate 141 and a bottom plate 142. The bottom end between the two side plates 121 is fixedly connected with the bottom plate 142. The top of the bottom plate 142 is slidably connected with the sliding plate 141. The distance between the top of the sliding plate 141 and the bottom of the support plate 13 is 5 cm. The inner sides of the support plate 13, the sliding plate 141 and the bottom plate 142 are all provided with a plurality of drainage holes. The drainage holes of the support plate 13, the sliding plate 141 and the bottom plate 142 are aligned with each other. The triggering component 15 includes a supporting frame 151, a sliding rod 152, a collecting tube 153, a spring 154, a triggering button 155 and a hydraulic rod 156. The inner side of the left end of the green belt isolation pool 11 is fixedly connected with the supporting frame 151, the inner side of the supporting frame 151 is slidably connected with the sliding rod 152, and the top of the sliding rod 152 is fixedly connected with the collecting tube 153. A spring 154 is fixedly connected between the bottom end of the collecting cylinder 153 and the support frame 151, a trigger button 155 is provided just below the slide bar 152, a hydraulic rod 156 is fixedly connected to the bottom end of the trigger button 155, the left end of the hydraulic rod 156 is fixedly connected to the green belt isolation pool 11, a slide groove is provided on the inner side of the side plate 121 at the left end, the inner side wall of the slide groove is slidably connected to the sliding plate 141, the left end of the sliding plate 141 is fixedly connected to the output end of the hydraulic rod 156, a reset hole is provided on the inner side wall of the bottom end of the collecting cylinder 153, the drainage assembly 16 includes a drainage pool 161, a support rod 162 and a drainage pipe 163, the bottom end of the green belt isolation pool 11 is fixedly connected to the drainage pool 161, and the inner side wall of the bottom end of the drainage pool 161 is fixedly connected to the bottom plate 142 A plurality of support rods 162 are fixedly connected, and a drainage pipe 163 is fixedly connected to the rear end surface of the drainage pool 161. The front end of the drainage pipe 163 is connected to the drainage pool 161. When it rains, rainwater falls on the inner side of the green belt isolation pool 11, and the collecting cylinder 153 gradually fills with water. The collecting cylinder 153 also slowly drains water through the reset hole. If the rain is fast and heavy, the water overflowing from the green belt isolation pool 11 flows into the drainage pool 161 through the side leakage plate 124 in the leakage groove, so that the soil of the green belt isolation pool 11 will not be quickly infiltrated, and the water accumulated in the collecting cylinder 153 presses the collecting cylinder 153 due to gravity, causing the sliding rod 152 to slide downward, and the sliding rod 152 slides in the support frame 151. The sliding rod 152 presses the trigger button 155 downward, and the trigger button 15 When the hydraulic rod 156 is triggered, it controls the sliding plate 141 to make the drainage holes of the supporting plate 13, the sliding plate 141 and the bottom plate 142 aligned, and the water in the isolation pool 11 penetrates the soil and flows into the drainage pool 161 through the aligned drainage holes, and then is discharged into the municipal pipeline through the drainage pipe 163. If the heavy rain lasts for a long time, the water in the green belt isolation pool 11 passes through the soil and flows out from the drainage holes, and the water flows into the drainage pool 161 and is discharged from the drainage pipe 163. When the water in the collection tube 153 flows out slowly through the reset hole, the spring 154 pushes the collection tube 153 to gradually rise, the sliding rod 152 is separated from the trigger button 155, and then the hydraulic rod 156 is retracted, so that the drainage holes of the sliding plate 141 and the bottom plate 142 are staggered, and the reset is completed. If it is light rain,When the speed and amount of rainwater accumulated in the collection tube 153 are not enough to press the slide bar 152 to fit the trigger button 155, the sliding plate 141 and the bottom plate 142 keep the drainage holes staggered, so that the water in the green belt isolation pool 11 will not flow to the drainage pool 161 through the sliding plate 141 and the bottom plate 142. The light rain can be used to replenish the moisture of the soil in the green belt isolation pool 11 on a daily basis to ensure the water replenishment needs of daily weather.
[0033] The connecting assembly 17 includes a connecting block 171, a fixing rod 172 and a plug 173. The left end of the green belt isolation pool 11 is fixedly connected with the connecting block 171, and the right end of the green belt isolation pool 11 is provided with a card slot. The outer side of the connecting block 171 at the right end is slidably connected with the card slot of the green belt isolation pool 11 at the left end. A fixing hole is provided inside the connecting block 171, and a slot is provided on the right side of the top of the green belt isolation pool 11. The inner side of the slot is slidably connected with the fixing rod 172, and the outer side of the fixing rod 172 is slidably connected with the fixing hole. The top of the fixing rod 172 is fixedly connected with a rotating Plug 173, a threaded hole is opened on the right side of the top of the green belt isolation pool 11, the bottom end of the inner wall of the threaded hole is connected to the inner wall of the slot, the outer side of the plug 173 is threadedly connected to the inner wall of the threaded hole, and the two adjacent green belt isolation pools 11 insert the connecting block 171 on the right green belt isolation pool 11 into the slot on the left green belt isolation pool 11, and then insert the fixing rod 172 into the slot and pass through the fixing hole of the connecting block 171, and then screw the plug 173 into the threaded hole of the green belt isolation pool 11 to complete the connection of the two adjacent green belt isolation pools 11.
[0034] Working principle:
[0035] When the device is in use, a pre-buried pit is dug at the location where the green belt is to be set up, and a connecting pit connected to the municipal pipeline is also dug, and then the green belt isolation pool 11 is placed in the pre-buried pit, the drainage pool 161 is placed at the bottom of the pre-buried pit, and the drainage pipe 163 is placed in the connecting pit, and then the blocking net 123 is hung on the hanging rod 122, and the hanging rod 122 passes through the mesh of the blocking net 123, and the blocking net 123 is laid flat, and soil is poured on the blocking net 123 until the soil overflows the hanging rod 122. When the soil is poured into the blocking net 123, use a shovel to tap it gently. The soil is evenly leveled, and then the two adjacent green belt isolation pools 11 insert the connecting block 171 on the right green belt isolation pool 11 into the slot on the left green belt isolation pool 11, and then insert the fixing rod 172 into the slot and pass through the fixing hole of the connecting block 171, and then screw the plug 173 into the threaded hole of the green belt isolation pool 11 to complete the connection of the two adjacent green belt isolation pools 11. When it rains, rainwater pours on the inside of the green belt isolation pool 11, and the collecting tube 153 gradually fills with water. At the same time, the collecting tube 153 also slowly drains water through the reset hole.
[0036] When heavy rain occurs, the water overflowing from the green belt isolation pool 11 flows into the drainage pool 161 through the soil locking assembly 12 in the leakage groove, so that the soil in the green belt isolation pool 11 will not be quickly infiltrated, and the water accumulated in the collecting tube 153 presses the collecting tube 153 due to gravity, causing the slide bar 152 to slide downward, and the slide bar 152 slides in the support frame 151, and the slide bar 152 presses the trigger button 155 downward. When the trigger button 155 is triggered, the hydraulic rod 156 is controlled to push the sliding plate 141 so that the drainage holes of the support plate 13, the sliding plate 141 and the bottom plate 142 are aligned, and the water in the isolation pool 11 penetrates the soil and flows into the drainage pool 161 through the aligned drainage holes, and then is discharged into the municipal pipeline through the drainage pipe 163.
[0037] When heavy rain occurs and the rainfall time is relatively long, the water in the green belt isolation pool 11 flows out from the drainage hole through the soil, and the water flows into the drainage pool 161 and is discharged from the drainage pipe 163. When the water in the collecting tube 153 flows out slowly through the reset hole, the spring 154 pushes the collecting tube 153 to gradually rise, and the slide bar 152 is separated from the trigger button 155. Then the hydraulic rod 156 runs and retracts, so that the drainage holes of the sliding plate 141 and the bottom plate 142 are staggered, and the reset is completed. When it is light rain, the speed and amount of rainwater accumulated in the collecting tube 153 are not enough to press the slide bar 152 to fit the trigger button 155, the sliding plate 141 and the bottom plate 142 keep the drainage holes staggered, so that the water in the green belt isolation pool 11 will not flow to the drainage pool 161 through the sliding plate 141 and the bottom plate 142.
Claims
1. A green belt water infiltration isolation device for collapsible loess treatment, characterized by: The invention comprises a green belt isolation pool (11), wherein a soil locking component (12) is installed inside the green belt isolation pool (11), a support plate (13) is installed on the soil locking component (12), an adjustment component (14) is provided below the support plate (13), a trigger component (15) is installed on one side of the adjustment component (14), a drainage component (16) is installed below the green belt isolation pool (11), and a connection component (17) is installed on the green belt isolation pool (11).
2. The green belt water infiltration isolation device for collapsible loess treatment according to claim 1, characterized in that: The soil locking assembly (12) comprises a side plate (121), a hanging rod (122), a blocking net (123) and a side leakage plate (124); two side plates (121) are fixedly connected to the inner side of the green belt isolation pool (11); the inner side walls of the two side plates (121) are fixedly connected to the support plate (13); the two side plates (121) are fixedly connected to the hanging rod (122) on the sides close to each other; the blocking net (123) is hung on the hanging rod (122); a leakage groove is opened at the top of the side plate (121); the inner side wall of the leakage groove is fixedly connected to the side leakage plate (124).
3. The green belt water infiltration isolation device for collapsible loess treatment according to claim 2, characterized in that: The height of the side leakage plate (124) is 10 cm higher than the height of the leakage groove of the side plate (121), and the side leakage plate (124) is provided with side flow holes penetrating the left and right sides of the side leakage plate (124).
4. The green belt water infiltration isolation device for collapsible loess treatment according to claim 3, characterized in that: The left and right ends of the blocking net (123) are respectively fitted with the two soil locking components (12), the front and rear ends of the blocking net (123) are respectively fitted with the front inner wall and the rear inner wall of the green belt isolation pool (11), and the bottom end of the blocking net (123) is fitted with the support plate (13).
5. The green belt water infiltration isolation device for collapsible loess treatment according to claim 4, characterized in that: The adjustment assembly (14) comprises a sliding plate (141) and a bottom plate (142); the bottom end between the two side plates (121) is fixedly connected to the bottom plate (142); the top end of the bottom plate (142) is slidably connected to the sliding plate (141); and the distance between the top end of the sliding plate (141) and the bottom end of the support plate (13) is 5 cm.
6. The green belt water infiltration isolation device for collapsible loess treatment according to claim 5, characterized in that: A plurality of drainage holes are provided on the inner sides of the support plate (13), the sliding plate (141) and the bottom plate (142), and the drainage holes of the support plate (13), the sliding plate (141) and the bottom plate (142) are aligned with each other.
7. The green belt water infiltration isolation device for collapsible loess treatment according to claim 6, characterized in that: The trigger assembly (15) comprises a support frame (151), a slide bar (152), a collection tube (153), a spring (154), a trigger button (155) and a hydraulic rod (156); the support frame (151) is fixedly connected to the inner side of the left end of the green belt isolation pool (11); the slide bar (152) is slidably connected to the inner side of the support frame (151); the top end of the slide bar (152) is fixedly connected to the collection tube (153); the spring (154) is fixedly connected between the bottom end of the collection tube (153) and the support frame (151); 54), the trigger button (155) is provided just below the slide bar (152), the bottom end of the trigger button (155) is fixedly connected to the hydraulic rod (156), the left end of the hydraulic rod (156) is fixedly connected to the green belt isolation pool (11), a slide groove is provided on the inner side of the side plate (121) at the left end, the inner side wall of the slide groove is slidably connected to the slide plate (141), the left end of the slide plate (141) is fixedly connected to the output end of the hydraulic rod (156), and a reset hole is provided on the inner side wall of the bottom end of the collecting cylinder (153).
8. The green belt water infiltration isolation device for collapsible loess treatment according to claim 7, characterized in that: The drainage assembly (16) comprises a drainage pool (161), support rods (162) and a drainage pipe (163); the drainage pool (161) is fixedly connected to the bottom end of the green belt isolation pool (11); a plurality of support rods (162) are fixedly connected between the inner side wall of the bottom end of the drainage pool (161) and the bottom plate (142); the drainage pipe (163) is fixedly connected to the rear end surface of the drainage pool (161); and the front end of the drainage pipe (163) is communicated with the drainage pool (161).
9. The green belt water infiltration isolation device for collapsible loess treatment according to claim 1, characterized in that: The connection assembly (17) comprises a connection block (171), a fixing rod (172) and a plug (173); the connection block (171) is fixedly connected to the left end of the green belt isolation pool (11); a slot is provided at the right end of the green belt isolation pool (11); the outer side of the connection block (171) located at the right end is slidably connected to the slot of the green belt isolation pool (11) located at the left end; a fixing hole is provided at the inner side of the connection block (171); a slot is provided at the right side of the top end of the green belt isolation pool (11); the fixing rod (172) is slidably connected to the inner side of the slot; the outer side of the fixing rod (172) is slidably connected to the fixing hole; the plug (173) is fixedly connected to the top end of the fixing rod (172); a threaded hole is provided at the right side of the top end of the green belt isolation pool (11); the bottom end of the inner side wall of the threaded hole is communicated with the inner side wall of the slot; the outer side of the plug (173) is threadedly connected to the inner side wall of the threaded hole.