Externally-pasted rubber waterstop fixing device

Abstract

The utility model relates to an externally-pasted rubber waterstop fixing device which structurally comprises a plurality of supporting frames arranged on the outer side face of a structural end mold, the tops of the supporting frames are flush with the top of the structural end mold, transverse force rods are arranged above the supporting frames, the transverse force rods and the outer ends of the supporting frames are supported through supporting pieces, and the supporting pieces are arranged on the supporting frames. A fixed longitudinal beam is arranged below the inner end of the transverse force rod, the fixed longitudinal beam is located above the structure end mold, the transverse force rod is connected with the supporting frame through a connecting piece, a cantilever horizontal force rod is connected to the transverse force rod and extends to the position above the inner side of the structure end mold, a fixed cross beam is arranged below the cantilever horizontal force rod, and the cantilever horizontal force rod is connected with the fixed longitudinal beam. An ejector rod assembly is arranged on the cantilever horizontal force rod, the fixed cross beam makes contact with the lower end of the ejector rod assembly, and a water stop belt pressing formwork is arranged below the fixed longitudinal beam and the fixed cross beam. The fixing device can effectively fix the externally-attached water stop belt, can prevent the water stop groove of the water stop belt from collecting gas, and improves the construction quality of the water stop belt.

Description

Technical Field

[0001] This utility model relates to an externally attached waterstop, specifically an externally attached rubber waterstop fixing device. Background Technology

[0002] External rubber waterstops are a type of water-stopping structure installed on the outer side (water-facing side) of concrete expansion joints and settlement joints in underground structures. They utilize the material elasticity and structural form of the waterstop to accommodate the expansion and contraction of concrete, and are applied to initiation joints, complete contraction joints, and incomplete contraction joints in structures. In practical applications, the external rubber waterstop must be tightly anchored to the concrete, utilizing its water-stopping, sealing, and elastic tensile deformation characteristics to achieve water stoppage at its location.

[0003] External rubber waterstops typically come in two cross-sectional forms: the EB type (external waterstop with a central hole) and the EP type (external waterstop without a central hole). The construction methods for both types are the same. Multiple water-stop grooves are installed on the surface of the waterstop in contact with the concrete for anchoring and water-stopping purposes. The waterstop forms a closed loop on the outside of the structure.

[0004] In actual construction, the external rubber waterstop needs to be closed in a ring to achieve the water-stopping effect. However, due to the location of the upper part of the ring closure and the concrete structure, the traditional method of fixing before pouring is adopted. During the concrete pouring process, air is easily generated inside the waterstop groove. Generally, grouting is used for sealing. However, because the air accumulation point is hidden and the location is difficult to determine, it is impossible to predict the grouting sealing point in advance, resulting in poor bonding between the waterstop and the concrete. At the same time, due to the self-weight and deformation of the rubber waterstop, and the fact that its location is often at the end formwork cantilever point, it is difficult to fix the waterstop. It is very easy for the waterstop to shift during the concrete pouring and vibration process, resulting in poor construction quality and water-stopping effect. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for external rubber waterstops to solve the problems of air accumulation and insecure fixing in existing external waterstop water collection grooves.

[0006] This utility model is implemented as follows: An external rubber waterstop fixing device includes several support frames disposed on the outer side of a structural end mold. The top of the support frame is flush with the top of the structural end mold. A transverse force bar is disposed above the support frame. The transverse force bar is supported by a support member at the outer end of the support frame. A fixed longitudinal beam is disposed below the inner end of the transverse force bar. The fixed longitudinal beam is located above the structural end mold. The transverse force bar is connected to the support frame through a connector. A cantilever horizontal force bar is connected to the transverse force bar. The cantilever horizontal force bar extends to the upper part of the inner side of the structural end mold. A fixed crossbeam is disposed below the cantilever horizontal force bar. A top rod assembly is disposed on the cantilever horizontal force bar. The lower end of the fixed crossbeam contacts the bottom end of the top rod assembly. A waterstop pressing template is disposed below the fixed longitudinal beam and the fixed crossbeam.

[0007] Furthermore, the waterstop clamping template includes a fixed template and a movable template connected to each other. The fixed template is located below the fixed longitudinal beam and is used to fix the outer part of the rubber waterstop. The movable template is located below the fixed transverse beam and is used to fix the inner part of the rubber waterstop. The outer template is a fixed plate-like structure, and the movable template can be rolled up upwards.

[0008] Furthermore, the movable template includes a flexible substrate and a plurality of pressure strips arranged side by side. The cross-section of the pressure strip is trapezoidal, the bottom surface of the pressure strip is fixed on the flexible substrate, and the flexible substrate is connected to the bottom surface of the fixed template.

[0009] Furthermore, the support frame includes an inclined support and a support beam, the support beam being flush with the top surface of the structural end mold, and the inclined support, the support beam, and the structural end mold forming a right-angled triangle.

[0010] Furthermore, the cantilever horizontal force bar and the transverse force bar are connected by fixing bolts.

[0011] Furthermore, the top rod assembly is a bolt that passes through the cantilever rod, and two nuts are threaded onto the bolt, with the two nuts located on the upper and lower sides of the horizontal rod.

[0012] This utility model also discloses a method for fixing an external rubber waterstop, which is based on the above-mentioned external rubber waterstop fixing device and includes the following steps.

[0013] a. Install the structural end formwork according to the engineering design requirements.

[0014] b. Install support frames at equal intervals along the length of the outer side of the structural end mold.

[0015] c. Place the external rubber waterstop on top of the structural end mold, and place the waterstop clamping template above the external rubber waterstop.

[0016] d. Place a fixed longitudinal beam above the waterstop pressing template. The fixed longitudinal beam is located directly above the structural end mold. Place a transverse force bar above the support frame. Place a support member above the outer end of the support frame to support the transverse force bar. Connect the support frame and the transverse force bar through the connector. The transverse force bar is pressed against the fixed longitudinal beam through the connector, thereby pressing the outer part of the external rubber waterstop.

[0017] e. Roll up the movable template and the inner part of the external rubber waterstop and fix it temporarily. Pour concrete into the structure inside the end formwork. After the concrete is poured to the design elevation, vibrate it.

[0018] f. Slowly lower the inner part of the external rubber waterstop and the movable template. Use a plate vibrator in conjunction with the gradually lowered movable template to vibrate the inner part of the external rubber waterstop, gradually expelling the air from the waterstop groove inside the inner part of the external rubber waterstop, while ensuring that the inner part of the rubber waterstop is tightly bonded to the structural concrete. Stop vibrating the inner part of the external rubber waterstop after it has been vibrated and lowered to the design elevation.

[0019] g. Place a fixed crossbeam above the movable template, connect a cantilever horizontal member to the transverse member, and thread a top rod assembly through the cantilever horizontal member. Press the fixed crossbeam with the top rod assembly, thereby pressing the inner part of the external rubber waterstop.

[0020] Furthermore, after the concrete inside the structural end formwork has solidified, the external rubber waterstop fixing device and the structural end formwork are removed, and the expansion joint and the outer concrete are constructed.

[0021] When pouring concrete into the inner part of the structural end formwork, this invention utilizes an external rubber waterstop fixing device to secure the outer portion of the external rubber waterstop. This facilitates the vibration and placement of the inner portion, gradually expelling air from the waterstop groove within the inner part of the external rubber waterstop. After vibration and placement, the fixing device further presses the inner portion of the external rubber waterstop downwards, ensuring a high-quality bond between the inner portion and the concrete. Subsequent construction of the expansion joint and outer concrete pouring is easier and more efficient due to the fixed inner portion of the external rubber waterstop, making vibration and placement of the outer portion easier and ensuring consistent quality. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the external rubber waterstop fixing device of this utility model.

[0023] Figure 2This is a perspective view of the external rubber waterstop fixing device of this utility model.

[0024] Figure 3 This is a structural diagram of the waterstop clamping template of this utility model.

[0025] Figure 4 This is a schematic diagram of the inner part of the external rubber waterstop of this utility model and the movable template before it is lowered.

[0026] Figure 5 This is a schematic diagram of the inner part of the external rubber waterstop of this utility model and the slow lowering of the movable template.

[0027] In the diagram: 1. Structural end formwork; 2. Support frame; 3. Horizontal force bar; 4. Support component; 5. Fixed longitudinal beam; 6. Connector; 7. Cantilever horizontal force bar; 8. Fixed crossbeam; 9. Waterstop clamping template; 10. Top rod assembly; 11. External rubber waterstop; 12. Fixing bolt; 13. Square timber; 14. Concrete structure; 2-1. Diagonal support; 2-2. Supporting crossbeam; 9-1. Fixed template; 9-2. Movable template; 9-3. Flexible substrate. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figure 1 , Figure 2 As shown, the external rubber waterstop fixing device of this utility model includes a support frame 2, a transverse force bar 3, a cantilever horizontal force bar 7, a support member 4, a fixed longitudinal beam 5, a fixed transverse beam 8, and a waterstop pressing template 9, etc.

[0031] The support frame 2 is set on the structural end mold 1 and is fixedly set on the outer side of the structural end mold 1. The inner side of the structural end mold 1 is used to pour and form the inner concrete structure 14. The top of the structural end mold 1 is slightly lower than the top surface of the concrete structure 14. After the external rubber waterstop 11 is placed on the top of the structural end mold 1, the top surface of the external rubber waterstop 11 is flush with the top surface of the concrete structure 14.

[0032] The structural end mold 1 includes a template and square timber ribs 13 on the outer side of the template.

[0033] Support frames 2 are installed at intervals along the length of the external rubber waterstop 11. The support frames 2 are perpendicular to the side of the structural template and can be installed on the square timber ribs 13 of the structural template.

[0034] The support frame 2 includes an inclined support 2-1 and a support beam 2-2. The support beam 2-2 is flush with the top surface of the structural end mold 1. The inclined support 2-1, the support beam 2-2 and the structural end mold 1 form a right triangle.

[0035] A transverse force bar 3 is installed above the support frame 2. The transverse force bar 3 is located directly above and parallel to the support beam 2-2. A support member 4 is placed between the outer end of the transverse force bar 3 and the support beam 2-2, supporting the outer end of the transverse force bar 3. A fixed longitudinal beam 5 is provided below the inner end of the transverse force bar 3. The length direction of the fixed longitudinal beam 5 is consistent with the length direction of the external rubber waterstop 11. The fixed longitudinal beam 5 is located above the structural end mold 1. The transverse force bar 3 is connected to the support beam 2-2 through a connecting member 6, which is a screw rod. The screw rod can press down on the transverse force bar 3.

[0036] A cantilever horizontal member 7 is connected to the transverse member 3. The cantilever horizontal member 7 is located above the transverse member 3 and parallel to the transverse member 3. The cantilever horizontal member 7 extends inward to the upper part of the inner side of the structural end mold 1. A fixed crossbeam 8 is provided below the cantilever part of the cantilever horizontal member 7. The fixed crossbeam 8 is parallel to the cantilever horizontal member 7. A top rod assembly 10 is provided on the cantilever horizontal member 7. The fixed crossbeam 8 contacts the lower end of the top rod assembly 10.

[0037] The top rod assembly 10 is a screw rod, which is arranged vertically and passes through the cantilever part of the cantilever horizontal force bar 7. Two nuts are screwed onto the screw rod, which are located on the upper and lower sides of the cantilever horizontal force bar 7. The length of the screw rod extending downward is adjusted by the two nuts.

[0038] A waterstop clamping template 9 is set below the fixed longitudinal beam 5 and the fixed transverse beam 8. The waterstop clamping template 9 is clamped by the fixed longitudinal beam 5 and the fixed transverse beam 8, and the external rubber waterstop 11 is clamped by the waterstop clamping template 9.

[0039] Among them, such as Figure 3 As shown, the waterstop clamping template 9 includes a fixed template 9-1 and a movable template 9-2 connected to each other. The fixed template 9-1 is located below the fixed longitudinal beam 5 and is used to fix the outer part of the rubber waterstop. The movable template 9-2 is located below the fixed crossbeam 8 and is used to fix the inner part of the rubber waterstop. The fixed template 9-1 and the outer part of the external rubber waterstop 11 are located between the fixed longitudinal beam 5 and the supporting crossbeam 2-2, and the fixed longitudinal beam 5 clamps the outer parts of the fixed template 9-1 and the external rubber waterstop 11. The movable template 9-2 and the inner part of the external rubber waterstop 11 are located below the fixed crossbeam 8, and the fixed crossbeam 8 clamps the inner parts of the movable template 9-2 and the external rubber waterstop 11 downwards.

[0040] The outer template is a fixed plate structure, while the movable template 9-2 can be rolled up.

[0041] The movable template 9-2 includes a flexible substrate 9-3 and multiple pressure strips arranged side by side. The pressure strips have a trapezoidal cross-section, and their bottom surfaces are fixed to the flexible substrate 9-3. The flexible substrate 9-3 is connected to the bottom surface of the fixed template 9-1. The bevel angle of the pressure strips can be 45°. Since the pressure strips are interconnected through the flexible substrate 9-3, the bevels of adjacent pressure strips can fit together, thereby rolling the movable template 9-2 upwards.

[0042] The flexible substrate 9-3 can be made of canvas.

[0043] The cantilever horizontal member 7 and the transverse member 3 are connected by fixing bolts 12.

[0044] The present invention relates to a method for fixing external rubber waterstops, which is based on the aforementioned external rubber waterstop fixing device and includes the following steps.

[0045] a. Install structural end formwork 1 according to the engineering design requirements.

[0046] The inner side of the structural end formwork 1 is the inner concrete structure 14 to be poured, and the square timber ribs 13 of the structural end formwork 1 are located on the outer side of the structural end formwork 1.

[0047] b. Support frames 2 are installed at equal intervals along the length direction on the outer side of the structural end mold 1.

[0048] c. Place the external rubber waterstop 11 on top of the structural end mold 1, with the middle part of the external rubber waterstop 11 located above the structural end mold 1, the inner part of the external rubber waterstop 11 located inside the structural end mold 1, and the outer part of the external rubber waterstop 11 located outside the structural end mold 1. Place the waterstop clamping template 9 above the external rubber waterstop 11.

[0049] d. Place a fixed longitudinal beam 5 above the waterstop pressing template 9. The fixed longitudinal beam 5 is located directly above the structural end mold 1. Place a transverse force bar 3 above the support frame 2. Place a support member 4 above the outer end of the support frame 2 to support the transverse force bar 3. Connect the support frame 2 and the transverse force bar 3 through the connector 6. The transverse force bar 3 presses the fixed longitudinal beam 5 through the connector 6, thereby pressing the outer part of the external rubber waterstop 11.

[0050] e. Roll up the movable template 9-2 and the inner part of the external rubber waterstop 11 and fix them temporarily. Pour concrete into the structure inside the structural end formwork 1. After the concrete is poured to the design elevation, it is vibrated.

[0051] f. Slowly lower the inner part of the external rubber waterstop 11 and the movable template 9-2. Use a plate vibrator in conjunction with the gradually lowered movable template 9-2 to vibrate the inner part of the external rubber waterstop 11, gradually expelling the gas in the waterstop groove of the inner part of the external rubber waterstop 11, and at the same time making the inner part of the rubber waterstop tightly bonded to the structural concrete. Stop the vibration construction after the inner part of the external rubber waterstop 11 is vibrated and lowered to the design elevation.

[0052] g. Place a fixed crossbeam 8 above the movable template 9-2, connect a cantilever horizontal force bar 7 to the transverse force bar 3, and pass a top rod assembly 10 through the cantilever horizontal force bar 7. Press the fixed crossbeam 8 with the top rod assembly 10, thereby pressing the inner part of the external rubber waterstop 11.

[0053] After the concrete inside the structural end formwork 1 has solidified, remove the external rubber waterstop fixing device and structural end formwork 1, and carry out the construction of the expansion joint and the outer concrete.

[0054] When pouring concrete for the inner side of the structural end mold 1, this invention utilizes an external rubber waterstop fixing device to secure the outer portion of the external rubber waterstop. This facilitates the vibration and placement of the inner portion of the external rubber waterstop, gradually expelling air from the waterstop groove within the inner portion. After the inner portion of the external rubber waterstop is vibrated and placed, the fixing device can further press the inner portion downwards, ensuring the quality of the bond between the inner portion and the concrete. During subsequent external concrete pouring, the vibration and placement of the outer portion of the external rubber waterstop are easier and of higher quality because the inner portion is already fixed.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for fixing an external rubber waterstop, characterized in that, The device includes several support frames disposed on the outer side of the structural end mold. The top of each support frame is flush with the top of the structural end mold. A transverse force bar is disposed above the support frame, and the transverse force bar is supported by a support member at the outer end of the support frame. A fixed longitudinal beam is disposed below the inner end of the transverse force bar, and the fixed longitudinal beam is located above the structural end mold. The transverse force bar is connected to the support frame through a connector. A cantilever horizontal force bar is connected to the transverse force bar, and the cantilever horizontal force bar extends to the upper inner side of the structural end mold. A fixed crossbeam is disposed below the cantilever horizontal force bar, and a top rod assembly is disposed on the cantilever horizontal force bar. The lower end of the fixed crossbeam contacts the top rod assembly. A waterstop clamping template is disposed below the fixed longitudinal beam and the fixed crossbeam.

2. The external rubber waterstop fixing device according to claim 1, characterized in that, The waterstop clamping template includes a fixed template and a movable template connected to each other. The fixed template is located below the fixed longitudinal beam and is used to fix the outer part of the rubber waterstop. The movable template is located below the fixed transverse beam and is used to fix the inner part of the rubber waterstop. The fixed template is a fixed plate-like structure, and the movable template can be rolled up.

3. The external rubber waterstop fixing device according to claim 2, characterized in that, The movable template includes a flexible substrate and multiple pressure strips arranged side by side. The pressure strips have a trapezoidal cross-section, and the bottom surface of the pressure strips is fixed on the flexible substrate. The flexible substrate is connected to the bottom surface of the fixed template.

4. The external rubber waterstop fixing device according to claim 1, characterized in that, The support frame includes diagonal supports and a support beam. The support beam is flush with the top surface of the structural end mold, and the diagonal supports, the support beam, and the structural end mold form a right triangle.

5. The external rubber waterstop fixing device according to claim 1, characterized in that, The cantilever horizontal force bar and the transverse force bar are connected by fixing bolts.

6. The external rubber waterstop fixing device according to claim 1, characterized in that, The top rod assembly is a bolt that passes through the cantilever horizontal force bar, and two nuts are threaded onto the bolt, with the two nuts located on the upper and lower sides of the horizontal force bar.

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