Adjustable positioning template for local polyurea spraying area of base plane

Abstract

The invention discloses an adjustable positioning formwork for a local polyurea spraying area of a base plane, and belongs to the technical field of seepage-proofing construction in the water conservancy industry. The adjustable positioning formwork comprises a rectangular supporting frame, telescopic rods are symmetrically arranged in the transverse direction and the vertical direction of the rectangular supporting frame, telescopic air cylinders I are arranged in the telescopic rods, and protective frames are arranged on the outer sides of the telescopic rods; the protective frame comprises a protective outer rod parallel to the telescopic rod, the protective outer rod is connected with the telescopic rod through a fixing rod I and a fixing rod II, the protective outer rod is of a sleeve structure, the fixing rod I is connected with an outer rod of the telescopic rod and an outer barrel of the protective outer rod, and the fixing rod II is connected with an inner rod of the telescopic rod and an inner barrel of the protective outer rod. A protective film is arranged between the protective outer rod and the telescopic rod; the device has the beneficial effects that a rectangular local spraying area can be positioned, the size of the spraying area can be adjusted, meanwhile, the surrounding range is protected, and practicability is high.

Description

Technical Field

[0001] The invention relates to the field of anti-seepage construction in the water conservancy industry, and in particular to an adjustable positioning template for a local polyurea spraying area on a base surface. Background Art

[0002] With the development of the water conservancy industry, many hydropower stations and hydraulic structures have defects such as point seepage, surface seepage or cracks in multiple parts after long-term operation. In order to ensure the effective repair of various defects, it is necessary to carry out anti-seepage treatment on the base surface of the defective parts. After years of experience in dealing with defects in hydraulic structures and comparing various anti-seepage treatment methods, polyurea spraying is used to seal and prevent seepage at defective parts. It is convenient to construct and operate, and is currently a commonly used anti-seepage treatment method.

[0003] For local defects in hydraulic structures, in order to ensure the scope of the anti-seepage area and reduce material waste when spraying polyurea, the spraying area is usually divided according to the defect area. Especially when spraying the rectangular anchor groove in the tunnel, in order to ensure that the spraying area does not exceed the designed area and reduce pollution to other surrounding areas, to achieve the effect of precise spraying, masking tape is usually used to protect the spraying area. Pasting masking tape requires labor, has low efficiency, and increases costs. Therefore, it is very critical to design a polyurea spray positioning template suitable for rectangular regular shapes. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an adjustable positioning template for a local polyurea spraying area on a base surface. The positioning template has a reasonable structural design, can position a regular-shaped local spraying area, and can adjust the size of the spraying area while protecting the surrounding area, and is highly practical.

[0005] The present invention is achieved by adopting the following measures: A base surface local polyurea spraying area adjustable positioning template, the template comprises a rectangular support frame, the rectangular support frame is symmetrically provided with telescopic rods in the horizontal and vertical directions, a telescopic cylinder I is provided inside the telescopic rod, a protective frame is provided outside the telescopic rod, the protective frame comprises a protective outer rod arranged parallel to the telescopic rod, and the protective outer rod is connected to the telescopic rod through a fixed rod I and a fixed rod II; The protective outer rod is a sleeve structure, the fixed rod I connects the outer rod of the telescopic rod and the outer tube of the protective outer rod, the fixed rod II connects the inner rod of the telescopic rod and the inner tube of the protective outer rod, and a protective film is arranged between the protective outer rod and the telescopic rod.

[0006] Furthermore, the telescopic rod comprises a transverse telescopic rod and a vertical telescopic rod symmetrically arranged on a rectangular support frame, wherein a synchronously moving telescopic cylinder I is arranged in the transverse telescopic rod, and a synchronously moving telescopic cylinder II is arranged in the vertical telescopic rod.

[0007] Furthermore, the protective outer rod comprises a transverse protective outer rod and a vertical protective outer rod, and extension rods are symmetrically arranged on the outer sides of both sides of the transverse telescopic rod, and the length of the transverse protective outer rod is equal to the sum of the lengths of the transverse telescopic rod and the extension rod.

[0008] Furthermore, the protective film arranged between the transverse protective outer rod and the transverse telescopic rod is fixed by a cable tie or a cable wire at the connection between the transverse telescopic rod and the vertical telescopic rod.

[0009] Furthermore, a support leg is provided at the lower end of the template, a lifting cylinder is provided inside the support leg, a walking wheel is provided at the bottom of the support leg, and a brake mechanism is provided on the walking wheel; The supporting legs include supporting legs I and supporting legs II. The supporting legs I are arranged on the outer rod of the lower transverse telescopic rod, and the supporting legs II are arranged on the inner rod of the lower transverse telescopic rod.

[0010] Furthermore, suction cups are evenly arranged on both ends of the back side of the telescopic rod and the protective outer rod, as well as on the back side of the fixed rod I and the fixed rod II.

[0011] Furthermore, the rectangular support frame and the protective frame are arranged in an arc shape in the vertical direction.

[0012] Furthermore, the telescopic rod includes an outer rod, an inner rod, an outer cylinder, and an inner cylinder which are arranged from the outside to the inside, the bottom of the outer cylinder is connected to the outer rod, the top of the inner cylinder is connected to the inner rod, and the surfaces of the outer rod and the inner rod are provided with flexible hanging rings that cooperate with temporary fixing clamps, and a protective film is clamped and fixed between the temporary fixing clamp and the flexible hanging ring.

[0013] Further, the inner rod comprises a first segment located outside the outer rod and a second segment located inside the outer rod, and the fixed rod II is connected to the first segment; A sliding groove is provided on the surface of the second segment along the axial direction, and a sliding rail corresponding to the sliding groove is provided on the inner surface of the outer rod.

[0014] Furthermore, a receiving groove corresponding to the flexible hanging ring is opened on the surface of the second segment, and the flexible hanging ring is located in the receiving groove. The receiving groove is located on the inclined surface of the inner rod away from the building surface to be sprayed, and the flexible hanging ring is received through the receiving groove.

[0015] The beneficial effects of the present invention are as follows: the present invention discloses an adjustable positioning template for a local polyurea spraying area of ​​a base surface. The template has a novel structure and a reasonable design. The transverse telescopic rod and the vertical telescopic rod of the rectangular support frame are telescoped by telescopic cylinders. The transverse protective outer rod and the vertical protective outer rod are connected to the rectangular support frame by fixed rods, driving the protective frame to telescope synchronously with the rectangular support frame. The protective frame is suitable for rectangular spraying areas of different sizes. A protective film is provided on the protective frame to protect the periphery of the spraying area. The template has low manual labor intensity and strong practicality.

[0016] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the positioning template of Example 1 of the present invention; Figure 2 This is a schematic diagram of the top view of the transverse protection outer rod of Example 1 of the present invention; Figure 3 It is a rear view structural schematic diagram of Example 2 of the present invention; Figure 4 This is a cross-sectional schematic diagram of an arc-shaped telescopic rod of Example 3 of the present invention; Figure 5 It is a simplified front view schematic diagram of the installation effect of the rectangular support frame of Example 3 of the present invention; Figure 6 It is a simplified side view schematic diagram of the installation effect of the rectangular support frame of Example 3 of the present invention; Figure 7 It is a simplified three-dimensional schematic diagram of the installation effect of the rectangular support frame of Example 3 of the present invention; Figure 8 This is a schematic diagram of the telescopic rod structure of Example 4 of the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlargement of part A; Fig.10 It is a schematic cross-sectional view of the local structure of the telescopic rod of Example 4 of the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the structure of part B in the middle is enlarged; Fig.12 This is a three-dimensional schematic diagram of the inner rod structure of Example 4 of the present invention; Fig.13 For the present invention Fig.12 The enlarged schematic diagram of the structure of part C in the middle; Fig.14For the present invention Fig.13 The enlarged schematic diagram of the structure of part D in the middle; Fig.15 It is a schematic diagram of a cross-section in the top view of the inner rod structure of Example 4 of the invention.

[0018] In the figure: 1. template; 2. rectangular support frame; 3. telescopic rod; 301. outer rod; 302. inner rod; 303. outer cylinder; 304. inner cylinder; 305. slide rail; 306. groove; 307. slide groove; 308. piston; 4. horizontal telescopic rod; 5. vertical telescopic rod; 6. telescopic cylinder I; 7. protective frame; 8. protective outer rod; 9. fixed rod I; 10. fixed rod II; 11. protective film; 12. temporary fixing clamp; 13. horizontal protective outer rod; 14. vertical protective outer rod; 15. extension rod; 16. support leg; 17. lifting cylinder; 18. walking wheel; 19. brake mechanism; 20. telescopic cylinder II; 21. wire; 22. support leg I; 23. support leg II; 24. suction cup; 25. flexible hanging ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1 like Figure 1-2 As shown, the present invention provides an adjustable positioning template for a local polyurea spraying area of ​​a base surface, wherein the template 1 includes a rectangular support frame 2 and is suitable for positioning a regular rectangular polyurea spraying area.

[0021] Telescopic rods 3 are symmetrically arranged in the horizontal and vertical directions of the rectangular support frame 2 . Telescopic cylinders are arranged inside the telescopic rods 3 . The telescopic rods 3 include a horizontal telescopic rod 4 and a vertical telescopic rod 5 symmetrically arranged on the rectangular support frame 2 .

[0022] A synchronously moving telescopic cylinder I6 is arranged in the transverse telescopic rod 4, and a synchronously moving telescopic cylinder II20 is arranged in the vertical telescopic rod 5. The telescopic cylinder I6 and the telescopic cylinder II20 can respectively drive the transverse telescopic rod 4 and the vertical telescopic rod 5 to telescopically move, thereby adjusting the size of the rectangular support frame 2, which is convenient for adjustment to polyurea spraying areas of different sizes.

[0023] A protective frame 7 is arranged on the outside of the telescopic rod 3, and the protective frame 7 includes a protective outer rod 8 arranged parallel to the telescopic rod 3. The protective outer rod 8 is connected to the telescopic rod 3 through a fixed rod Ⅰ9 and a fixed rod Ⅱ10. The protective outer rod 8 is a sleeve structure. The fixed rod Ⅰ9 connects the outer rod of the telescopic rod 3 and the outer tube of the protective outer rod 8, and the fixed rod Ⅱ10 connects the inner rod of the telescopic rod 3 and the inner tube of the protective outer rod 8.

[0024] The sum of the length of the fixed rod I9, the outer rod width of the telescopic rod 3, and the outer tube width of the protective outer rod 8 is equal to the sum of the length of the fixed rod II10, the inner rod width of the telescopic rod 3, and the inner tube width of the protective outer rod 8.

[0025] When the telescopic rod 3 is telescopically moved, the protective outer rod 8 is driven to be telescopically moved synchronously under the fixed connection of the fixed rod I9 and the fixed rod II10, and a protective film 11 is arranged between the protective outer rod 8 and the telescopic rod 3.

[0026] The protective film 11 is folded in a “┴” shape on the protective frame 7 , with both ends of the protective film 11 connected to the ends of the protective frame 7 . The folded part of the protective film 11 is fixed by a temporary fixing clip 12 , and the protective outer rod 8 includes a transverse protective outer rod 13 and a vertical protective outer rod 14 .

[0027] The protective film 11 arranged between the transverse protective outer rod 13 and the transverse telescopic rod 4 is fixed at the connection between the transverse telescopic rod 4 and the vertical telescopic rod 5 by a cable tie or a cable wire 21, ensuring that the protective film 11 provides comprehensive protection on the protective frame 7, while being easy to adjust its length as the length of the protective frame 7 is extended or retracted.

[0028] When the protective outer rod 8 extends outward, loosen the temporary fixing clamp 12 near the middle so that the length of the protective film 11 can meet the length requirement of the protective outer rod 8; when the protective outer rod 8 contracts inward, add the temporary fixing clamp 12 near the middle, fold and fix the loose protective film 11 in the middle into a "┴" shape, and ensure that the protective film 11 is fully covered on the protective frame 7.

[0029] Extension rods 15 are symmetrically arranged on the outer sides of the transverse telescopic rod 4. The length of the transverse protective outer rod 13 is equal to the sum of the lengths of the transverse telescopic rod 4 and the extension rod 15, ensuring that when the telescopic rod 3 moves, it drives the rectangular support frame 2 to extend and retract, and at the same time drives the protective frame to extend and retract, thereby adjusting the size of the positioning template in all directions.

[0030] A supporting leg 16 is provided at the lower end of the template 1 , a lifting cylinder 17 is provided inside the supporting leg 16 , a running wheel 18 is provided at the bottom of the supporting leg 16 , and a brake mechanism 19 is provided on the running wheel 18 .

[0031] The support leg 16 includes a support leg I 22 and a support leg II 23. The support leg I 22 is arranged on the outer rod 301 of the lower horizontal telescopic rod 4, and the support leg II 23 is arranged on the inner rod 302 of the lower horizontal telescopic rod 4. The lifting cylinder 17 can drive the support leg 16 to move up and down to adjust the height, and locate the spraying areas at different heights, which is highly practical.

[0032] Example 2 like Figure 3 The present invention discloses an adjustable positioning template for a local polyurea spraying area of ​​a base surface. The difference between this embodiment and embodiment 1 is that suction cups 24 are evenly arranged on the back ends of the telescopic rod 3 and the protective outer rod 8, and on the backs of the fixed rods Ⅰ9 and Ⅱ10. The suction cups 24 are used to adsorb the positioning template 1 on the base surface to facilitate positioning of the template 1. The suction cups 24 are densely arranged. Even if the base surface of individual areas is not flat enough, it can be ensured that the suction cups 24 are firmly adsorbed. The template 1 can be firmly fixed on the base surface by using the suction cups 24, which is convenient for disassembly and has strong practicality.

[0033] Example 3 like Figure 4-5 The present invention provides an adjustable positioning template for a local polyurea spraying area on a base surface. The difference between the adjustable positioning template for a local polyurea spraying area on a base surface protected by Example 3 and Examples 1 and 2 is that the rectangular support frame 2 and the protective frame 7 are arranged in an arc shape in the vertical direction, which is convenient for positioning the side and top arch anchor grooves of the tunnel and the local regular polyurea spraying areas, thereby achieving effective protection and positioning effects.

[0034] like Figure 4 As shown, the telescopic rod 3 can be made of an oil cylinder or a gas cylinder, including an arc-shaped outer cylinder 303 and an arc-shaped inner cylinder 304, and an arc-shaped piston 308. The arc axes of the outer cylinder 303, the inner cylinder 304, and the piston 308 are concentric arc structures. The inner cylinder 304 moves along an arc trajectory during the telescopic process, and the inner cylinder 304 has an anti-rotation effect during the telescopic process.

[0035] The structure of the protective outer rod 8 in the protective frame 7 is the same as that of the telescopic rod 3, and the orientation is also the same, so as to adapt to the side arch anchor groove of the tunnel with corresponding curvature and the local regular polyurea spraying area.

[0036] When installing, the simple effect is as follows Figure 5-7 As shown, the curvature of the vertical telescopic rod 3 corresponds to the curvature of the tunnel top.

[0037] Example 4 like Figure 8-15, the present invention is an adjustable positioning template for a local polyurea spraying area of ​​a base surface. The difference between this embodiment and embodiment 1 is that the telescopic rod 3 includes an outer rod 301, an inner rod 302, an outer cylinder 303, and an inner cylinder 304 which are sleeved from the outside to the inside. The outer rod 301, the inner rod 302, the outer cylinder 303, and the inner cylinder 304 have a cylindrical structure. The telescopic rod 3 is composed of a rod body located outside and a cylinder body of a telescopic cylinder located inside, wherein the rod body includes an outer rod 301 and an inner rod 302 which are sleeved together, the cylinder body includes an outer cylinder 303 and an inner cylinder 304 which are sleeved together, and the cylinder body is sleeved inside the inner rod 302, the bottom of the outer cylinder 303 is connected to the inner bottom of the outer rod 301, and the top of the inner cylinder 304 is connected to the inner top of the inner rod 302. When in use, the rod body is driven by the cylinder body to telescope, and then the rod body drives the fixed rod I, the fixed rod II, and the outer protective rod to move synchronously.

[0038] The surfaces of the outer rod 301 and the inner rod 302 are connected with a flexible hanging ring 25 that cooperates with the temporary fixing clamp 12. The flexible hanging ring 25 is made of a flexible material with good toughness and slight elasticity. A protective film 11 is clamped and fixed between the temporary fixing clamp 12 and the flexible hanging ring 25. When in use, the protective film 11 is covered on the outer rod 301 so that the protective film 11 covers the flexible hanging ring 25, and then the temporary fixing clamp 12 is used to clamp the protective film 11 on the flexible hanging ring 25 from top to bottom.

[0039] The inner rod 302 includes a first segment located outside the outer rod 301 and a second segment located inside the outer rod 301. The fixing rod II10 is connected to the first segment. Figure 8 As shown, the first stage is located above the outer rod 301 and leaks out of the outer rod 301 in a normal state, while the second segment is as shown in FIG. Figure 10-11 As shown, it is located inside the outer rod 301. In the normal state, it extends from the inner part of the outer rod 301 as needed, or the so-called fixed rod II10 is installed between the upper and lower flexible hanging rings 25 on the first segment through a hoop; A slide groove 307 is axially provided on the surface of the second segment, and the slide groove 307 is a guide groove and a limit groove. A slide rail 305 corresponding to the slide groove 307 is provided on the inner surface of the outer rod 301, and the slide rail 305 is a guide rail. The slide groove 307 cooperates with the slide rail 305 to increase the contact area between the inner rod 302 and the outer rod 301, so that when the inner rod 302 extends outward for a long time, it can maintain better stability and prevent 302 from rotating in a circumferential direction during rotation.

[0040] A storage groove 306 corresponding to the flexible hanging ring 25 is opened on the surface of the second segment. When the flexible hanging ring 25 is located inside the outer rod 301, the flexible hanging ring 25 is located in the storage groove 306 to prevent the flexible hanging ring 25 from blocking the relative movement when the inner rod 302 moves relative to the outer rod 301.

[0041] The receiving groove 306 is located on the inclined surface of the inner rod 302 away from the building surface to be sprayed. The flexible hanging ring 25 is received by the receiving groove 306. Specifically, the telescopic rod 3 is used flat when in use ( Figure 8 In the vertical state), when the telescopic rod 3 is laid flat, the fixing rod II10 is also in a horizontal state, and the groove 306 is located at an inclined position on the surface of the inner rod 302 which is rotated upward by a certain angle from the horizontal position. In the flat state, the groove 306 is neither in a horizontal position on the side wall of the inner rod 302, nor in a top position on the side wall of the inner rod 302, but is located between the top end and the horizontal end of the side wall of the inner rod 302, so that during the clamping and fixing process of the protective film 11, the temporary fixing clip 12 is clamped on the flexible hanging ring 25, while avoiding mutual interference between the protective film 11 and the fixing rod II10.

[0042] Working principle: When in use, the height of the entire template is adjusted according to the height of the area to be sprayed through the lifting cylinder 17 on the bottom support leg 16, so that the device can adapt to the spraying position height of different heights, and the template is moved to the specified position through the walking wheel 18 and the brake mechanism 19 is locked.

[0043] Then, according to the size requirements of the area to be sprayed, the telescopic cylinder I6 and the telescopic cylinder II20 are controlled to adjust the length of the horizontal telescopic rod 4 and the vertical telescopic rod 5, so that the rectangular support frame 2 can adapt to the size of the area to be sprayed. When the horizontal telescopic rod 4 and the vertical telescopic rod 5 are extended or retracted, the horizontal protective outer rod 13 and the vertical protective outer rod 14 are driven to be extended or retracted synchronously through the fixed rod I9 and the fixed rod II10, so that the protective frame 7 can change its size synchronously with the rectangular support frame 2.

[0044] The telescopic rod 3 uses an outer rod 301, an inner rod 302, an outer cylinder 303, and an inner cylinder 304 which are sleeved from the outside to the inside, and the design of the slide groove 307 and the slide rail 305 increases stability to prevent the inner rod 302 from rotating. During use, when the second segment retracts into the inner part of the outer rod 301, the flexible hanging ring 25 is squeezed by the squeezing action of the outer rod 301, and is elastically deformed and stored in the storage groove 306. When the second stage extends from the inner part of the outer rod 301, the flexible hanging ring 25 located in the storage groove 306 returns to its original state by its own elastic action. The flexible hanging ring 25 is used to fix the protective film 11 to ensure that the protective film 11 does not interfere with the fixing rod II10. The length of the protective film 11 is adjusted by loosening or adding a temporary fixing clamp 12 to ensure full coverage of the protection.

[0045] After adjusting to the appropriate size, the template is firmly adsorbed on the building base to be sprayed through the telescopic rod 3, the two ends of the back of the protective outer rod 8 and the suction cups 24 on the back of the fixed rods I9 and II10, and finally the spraying operation is carried out in the inner area of ​​the plot support frame 2.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An adjustable positioning template for a local polyurea spraying area on a base surface, characterized in that: The template comprises a rectangular support frame (2), the rectangular support frame (2) is symmetrically provided with telescopic rods (3) in the horizontal and vertical directions, a telescopic cylinder I (6) is provided inside the telescopic rod (3), a protective frame (7) is provided outside the telescopic rod (3), the protective frame (7) comprises a protective outer rod (8) arranged parallel to the telescopic rod (3), and the protective outer rod (8) is connected to the telescopic rod (3) via a fixed rod I (9) and a fixed rod II (10); The protective outer rod (8) is a sleeve structure, the fixed rod I (9) connects the outer rod (301) of the telescopic rod (3) and the outer tube of the protective outer rod (8), the fixed rod II (10) connects the inner rod (302) of the telescopic rod (3) and the inner tube of the protective outer rod, and a protective film (11) is provided between the protective outer rod (8) and the telescopic rod (3).

2. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 1, characterized in that: The telescopic rod (3) comprises a transverse telescopic rod (4) and a vertical telescopic rod (5) symmetrically arranged on a rectangular support frame (2); a synchronously moving telescopic cylinder I (6) is arranged in the transverse telescopic rod (4), and a synchronously moving telescopic cylinder II (20) is arranged in the vertical telescopic rod (5).

3. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 2, characterized in that: The protective outer rod (8) comprises a transverse protective outer rod (13) and a vertical protective outer rod (14), and extension rods (15) are symmetrically arranged on the outer sides of both sides of the transverse telescopic rod (4), and the length of the transverse protective outer rod (13) is equal to the sum of the lengths of the transverse telescopic rod (4) and the extension rod (15).

4. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 3 or 5, characterized in that: The protective film (11) provided between the transverse protective outer rod (13) and the transverse telescopic rod (4) is fixed at the connection between the transverse telescopic rod (4) and the vertical telescopic rod (5) by means of a tie or a tie wire (21).

5. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 1, characterized in that: A support leg (16) is provided at the lower end of the template, a lifting cylinder (17) is provided inside the support leg (16), a walking wheel (18) is provided at the bottom of the support leg (16), and a brake mechanism (19) is provided on the walking wheel (18); The support leg (16) comprises a support leg I (22) and a support leg II (23), wherein the support leg I (22) is arranged on an outer rod (301) of a lower transverse telescopic rod (4), and the support leg II (23) is arranged on an inner rod (302) of the lower transverse telescopic rod.

6. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 1, characterized in that: Suction cups (24) are evenly arranged on both ends of the back side of the telescopic rod (3), the protective outer rod (8), and the back side of the fixed rod I (9) and the fixed rod II (10).

7. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 1, characterized in that: The rectangular support frame (2) and the protective frame (7) are arranged in an arc shape in the vertical direction.

8. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 1, characterized in that: The telescopic rod (3) comprises an outer rod (301), an inner rod (302), an outer cylinder (303), and an inner cylinder (304) which are sleeved from the outside to the inside; the bottom of the outer cylinder (303) is connected to the outer rod (301); the top of the inner cylinder (304) is connected to the inner rod (302); flexible hanging rings (25) cooperating with a temporary fixing clamp (12) are provided on the surfaces of the outer rod (301) and the inner rod (302); a protective film (11) is clamped and fixed between the temporary fixing clamp (12) and the flexible hanging ring (25).

9. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 8, characterized in that: The inner rod (302) comprises a first segment located outside the outer rod (301) and a second segment located inside the outer rod (301), and the fixed rod II (10) is connected to the first segment; A sliding groove (307) is provided on the surface of the second segment along the axial direction, and a sliding rail (305) corresponding to the sliding groove (307) is provided on the inner surface of the outer rod (301).

10. The adjustable positioning template for local polyurea spraying area of ​​a base surface according to claim 9, characterized in that: The surface of the second segment is provided with a receiving groove (306) corresponding to the flexible hanging ring (25); the receiving groove (306) is located on an inclined surface on the inner rod (302) away from the building surface to be sprayed; the flexible hanging ring (25) is located in the receiving groove (306) and the flexible hanging ring (25) is received by the receiving groove (306).

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