Adjustable tunnel middle-buried type water stop belt fixing device

Abstract

The utility model discloses an adjustable tunnel buried type water stop belt fixing device which comprises a height positioning piece, a transverse positioning piece and a clamp. One end of the height positioning piece sleeves the surface of the inner ring inverted arch steel bar, and the other end of the height positioning piece sleeves the surface of the outer ring inverted arch steel bar; the height positioning piece comprises a telescopic rod, a rod end limiting assembly and a first fastening piece; the rod end limiting assemblies are arranged at the two ends of the telescopic rod and control the ends of the telescopic rod to move or be fixed at any height position of the inverted arch steel bar. The first fastener is arranged on the side wall of the telescopic rod and used for locking the length of the telescopic rod. The transverse positioning piece comprises a sliding piece and a second fastening piece; the sliding piece sleeves the surface of the telescopic rod and can slide along the extension direction of the telescopic rod; the second fastening piece is arranged on the side wall of the sliding piece, and the sliding piece can be fixed to any position in the extending direction of the telescopic rod. The upper end of the clamp is vertically and fixedly connected with the bottom of the sliding piece, and the lower end of the clamp can clamp and fix the waterstop.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering construction, in particular to a fixing device for an embedded water stop in a tunnel. Background Art

[0002] In tunnel projects, in order to meet the waterproof requirements of longitudinal construction joints, it is necessary to install embedded waterstops during the pouring of low side walls. If the pre-embedded quality of the embedded waterstops does not meet the requirements of the specifications, it will directly affect the waterproof effect of the construction joints and increase the cost investment of subsequent tunnel operations.

[0003] The traditional construction method is generally: (1) tie the U-shaped steel bar clip to the inverted arch steel bars on both sides, then insert the water stop into the U-shaped steel bar clip, and cast the two together in concrete. Due to the low rigidity of the U-shaped steel bar clip and the lack of direct fixing measures for the water stop, the water stop is prone to displacement during construction and difficult to correct; the steel bar clip cannot be recycled, which increases the construction cost; (2) the water stop is fixed with a formwork bracket. Although it improves the problems of inaccurate positioning, loose fixation and waste of steel, it is still difficult to flexibly correct the displacement of the water stop during construction.

[0004] In summary, existing construction techniques may cause the waterstop to bend, deflect, and be uneven when installed, resulting in unsatisfactory pre-embedded quality and affecting the waterproof effect of the longitudinal construction joint. Utility Model Content

[0005] The main technical problem to be solved by the utility model is to provide an adjustable tunnel embedded waterstop fixing device, which can timely correct the deviation of the waterstop during concrete pouring, thereby ensuring that the waterstop can be pre-buried straight.

[0006] In order to solve the above technical problems, the utility model provides an adjustable tunnel embedded water stop belt fixing device, including a height positioning member, a lateral positioning member and a clamp;

[0007] The height positioning member is arranged horizontally, with one end sleeved on the surface of the inner ring inverted arch steel bar and the other end sleeved on the surface of the outer ring inverted arch steel bar; the height positioning member comprises a telescopic rod, a rod end limit assembly and a first fastener; the rod end limit assembly is arranged at both ends of the telescopic rod to control the end of the telescopic rod to move or fix at any height position of the inverted arch steel bar; the first fastener is arranged on the side wall of the telescopic rod to lock the length of the telescopic rod;

[0008] The transverse positioning member includes a sliding member and a second fastener; the sliding member is sleeved on the surface of the telescopic rod and can slide along the extension direction of the telescopic rod; the second fastener is arranged on the side wall of the sliding member and can fix the sliding member at any position in the extension direction of the telescopic rod;

[0009] The clamp is vertically arranged, the upper end is vertically fixed to the bottom of the sliding member, and the lower end can clamp and fix the water stop.

[0010] In a preferred embodiment, the rod end limiting assembly includes a sleeve and a fourth fastener; a sleeve is connected to one end of the telescopic rod, and the inner diameter of the sleeve is larger than the diameter of the inverted arch reinforcement; a fourth fastener is radially arranged on the side wall of the sleeve; an oblique U-shaped groove is arranged at the other end of the telescopic rod, which cooperates with the sleeve and the fourth fastener.

[0011] In a preferred embodiment, the rod end limiting assembly includes a sleeve and a fourth fastener; a sleeve is connected to one end of the telescopic rod, and the inner diameter of the sleeve is larger than the diameter of the inverted arch reinforcement; and a fourth fastener is radially arranged on the side wall of the sleeve.

[0012] In a preferred embodiment, the telescopic rod includes an outer ring tube and an inner ring tube; the outer ring tube and the inner ring tube are axially sleeved and have the same cross-sectional type.

[0013] In a preferred embodiment, the first fastener is arranged on the side wall of the outer ring tube and is limited in translation along the axial direction of the outer ring tube; when the first fastener is in a tightened state, it abuts against the outer wall of the inner ring tube; when the first fastener is in a loosened state, it has no contact with the inner ring tube.

[0014] In a preferred embodiment, the sliding member is a pipe having the same cross-section type as the telescopic rod, and a radial dimension larger than that of the telescopic rod.

[0015] In a preferred embodiment, the second fastener is arranged on the side wall of the sliding member and is limited in translation along the axial direction of the sliding member; when the second fastener is in a fastened state, it abuts against the outer wall of the telescopic rod; when the second fastener is in a loose state, it does not contact the telescopic rod.

[0016] In a preferred embodiment, the clamp includes two plywood plates and a third fastener; the two plywood plates are arranged opposite to each other to enclose a clamping space for the waterstop; the third fastener is arranged on the two plywood plates to adjust the width of the clamping space.

[0017] In a preferred embodiment, the sliding member is composed of two sections of independent pipes arranged side by side; the two clamping plates are arranged separately, that is, a clamping plate is arranged at the bottom of each section of the sliding pipe.

[0018] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0019] The fixing device provided by the utility model uses the inverted arch steel bars with greater rigidity as support to fix the water stop belt, with accurate positioning and reliable bearing capacity;

[0020] The fixing device provided by the utility model can be flexibly moved in both vertical and horizontal directions, and the deviation of the water stop belt can be corrected in time during the concrete pouring process, thereby improving the pre-embedded quality of the water stop belt;

[0021] The components of the fixing device provided by the utility model can be obtained by taking materials on site and simply processing them, and are convenient to assemble and disassemble and can be recycled, thereby saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall connection of the fixing device in the preferred embodiment of the utility model;

[0023] Figure 2 A top view of the height positioning member in a preferred embodiment of the utility model;

[0024] Figure 3 It is a side view of the transverse positioning member and the clamp in the preferred embodiment of the utility model.

[0025] Markings in the figure are: 1-height positioning piece, 2-lateral positioning piece, 3-clamp, 4-waterstop, 5-inverted arch steel bar, 6-inverted arch concrete; 11-telescopic rod, 12-first bolt assembly, 13-sleeve, 14-fourth bolt assembly, 15-U-shaped groove, 21-sliding square steel pipe, 22-second bolt assembly, 31-angle steel, 32-third bolt assembly, 51-inner ring inverted arch steel bar, 52-outer ring inverted arch steel bar; 111-outer ring square steel pipe, 112-inner ring square steel pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In actual engineering, the inverted steel bars of the tunnel low side wall are usually of greater rigidity, and thus have a stronger bearing capacity and positioning stability. Therefore, the water stop fixing device provided in the embodiment of the utility model uses the inverted steel bars as a working support, and is installed and moved with the help of the inverted steel bars, thereby achieving the fixing and deviation correction of the water stop.

[0030] like Figure 1 As shown, the preferred embodiment provides an adjustable tunnel embedded waterstop fixing device, including a height positioning member 1, a transverse positioning member 2 and a clamp 3. The height positioning member 1 is horizontally arranged, with one end sleeved on the surface of the inner ring inverted arch reinforcement 51, and the other end sleeved on the surface of the outer ring inverted arch reinforcement 52. The height positioning member 1 can move freely along the extension direction of the inverted arch reinforcement 5, and be fixed at any height position of the inverted arch reinforcement 5. The transverse positioning member 2 is sleeved on the surface of the height positioning member 1, can slide freely along the extension direction of the height positioning member 1, and be fixed at any horizontal position of the height positioning member 1. The clamp 3 is vertically arranged, with the upper end vertically fixed to the bottom of the transverse positioning member 2, and the lower end clamping and fixing the waterstop 4.

[0031] like Figure 1 and Figure 2As shown, the height positioning member 1 includes a telescopic rod 11, a first bolt assembly 12, a sleeve 13, a fourth bolt assembly 14 and a U-shaped groove 15. In an actual construction scenario, the horizontal distance between the inner ring inverted arch steel bar 51 and the outer ring inverted arch steel bar 52 changes with the change of height, so it is required that the length of the height positioning member 1 can be extended and retracted at any time when the height is adjusted to adapt to the horizontal spacing of the inner and outer ring inverted arch steel bars at different height positions to prevent the occurrence of blocking or inability to fix horizontally. Therefore, this preferred embodiment uses two sections of square steel pipes with different cross-sectional sizes to form the telescopic rod 11 through axial sleeve connection. The two sections of square steel pipes can slide against each other, and the difference in the side length of their cross sections does not exceed 2 cm. For the convenience of description, according to the mutual nesting relationship, the two sections of square steel pipes are called outer ring square steel pipe 111 and inner ring square steel pipe 112. Obviously, the side length of the cross section of the outer ring square steel pipe 111 is greater than that of the inner ring square steel pipe 112.

[0032] In this preferred embodiment, the first fastener is a first bolt assembly 12. The first bolt assembly 12 is arranged on the outer ring square steel tube 111 at a position close to the end, and the end is an end that is sleeved with the inner ring square steel tube 112. The specific setting method is: a clearance hole is drilled on the side wall of the outer ring square steel tube 111, and its hole diameter is larger than the diameter of the screw rod of the first bolt assembly 12; the nut of the first bolt assembly 12 is welded on the outer side of the outer ring square steel tube 111, and the nut is aligned with the center of the clearance hole; the screw rod of the first bolt assembly 12 is screwed into the nut, and the screw rod is continuously rotated to pass through the clearance hole. When the screw rod abuts against the inner ring square steel tube 112 and cannot be rotated further, the first bolt assembly 12 is in a tightened state, and the relative sliding of the outer ring square steel tube 111 and the inner ring square steel tube 112 is restricted, thereby locking the length of the telescopic rod 11.

[0033] In this preferred embodiment, the sleeve 13, the fourth bolt assembly 14 and the oblique groove 15 together constitute the rod end limiting assembly of the height positioning member 1. Figure 1 and Figure 2 As shown, the sleeve 13 is welded to one end of the telescopic rod 11, and its inner diameter is larger than the diameter of the inner ring inverted arch steel bar 51, so as to be inserted into the inner ring inverted arch steel bar 51 and move along its extension direction. A fourth bolt assembly 14 is arranged on the side wall of the sleeve 13, and the arrangement method is the same as the first bolt assembly 12. When the fourth bolt assembly 14 is in a tightened state, the relative movement between the sleeve 13 and the inner ring inverted arch steel bar 51 is restricted, and the end of the height positioning member 1 where the sleeve 13 is arranged is fixed to the surface of the inner ring inverted arch steel bar 51.

[0034] At the other end of the telescopic rod 11, an oblique U-shaped groove 15 is provided. The size of the opening of the U-shaped groove 15 is larger than the diameter of the outer ring inverted steel bar 52, and its inclination direction is the same as that of the outer ring inverted steel bar 52. When the sleeve 13 is fixed on the inner ring inverted steel bar 51, the length of the telescopic rod 11 is adjusted to directly abut the surface of the outer ring inverted steel bar 52 from the side, and then the first bolt assembly 12 is tightened. At this time, the outer ring inverted steel bar 52 generates a reaction force perpendicular to the contact surface, balancing the gravity effect on the height positioning member 1 at this end, thereby providing a limiting effect for the height positioning member 1.

[0035] In other specific embodiments, the position correspondence between the rod end stop assembly and the inverted arch reinforcement 5 is not limited to that described in this preferred embodiment. The stop combination of the sleeve 13 and the fourth bolt assembly 14 can also be set on the surface of the outer ring inverted arch reinforcement 52, and correspondingly, the U-shaped groove 15 abuts against the surface of the inner ring reinforcement 51.

[0036] As a simple replacement of this embodiment, the U-shaped groove 15 can also be replaced by a limiting combination of the sleeve 13 and the fourth bolt assembly 14. That is, the sleeves 13 are welded at both ends of the telescopic rod, and a set of the fourth bolt assembly 14 is penetrated through the side wall of each sleeve 13.

[0037] In this preferred embodiment, the sliding member is two sections of sliding square steel pipes 21 arranged side by side, and the second fastener is a second bolt assembly 22, which together constitute the transverse positioning member 2. Figure 1 and Figure 3 As shown, the sliding square steel tube 21 is sleeved on the surface of the telescopic rod 11 and can slide along the extension direction of the telescopic rod 11; a group of second bolt assemblies 22 are arranged on the side wall of each section of the sliding square steel tube 21, and the arrangement mode of the second bolt assemblies 22 is the same as that of the first bolt assemblies 12. When the second bolt assemblies 22 are in a tightened state, the relative sliding of the sliding square steel tube 21 and the telescopic rod 11 is restricted, so that the sliding square steel tube 21 is fixed at any position in the extension direction of the telescopic rod 11.

[0038] A vertical angle steel 31 is welded to the bottom of each section of the sliding square steel tube 21. The two sections of angle steel 31 are symmetrically arranged, and each section of angle steel 31 has a limb that is flush with the end of the sliding square steel tube 21. Therefore, the two limbs are arranged opposite to each other, and together enclose a clamping space for the water stop 4. For the convenience of description, the two limbs arranged opposite to each other are defined as clamping surfaces below. When the two sections of the sliding square steel tube 21 move toward each other, the width of the clamping space gradually decreases; when the two sections of the sliding square steel tube 21 are in contact, the two clamping surfaces merge. A third bolt assembly 32 is arranged on the two clamping surfaces, and the arrangement method is as follows: a pair of clearance holes are arranged at the same height position of the two clamping surfaces, and the hole diameter is larger than the screw diameter of the third bolt assembly 32; a nut is welded on the outer side of one of the clamping surfaces, and the nut is aligned with the center of the clearance hole; the screw is inserted into the pair of clearance holes from the outer side of the other clamping surface, and finally the nut is screwed in. The screw rod squeezes the two clamping surfaces inwards through the spiral fit with the nut, so that the two clamping surfaces clamp and fix the water stop 4. In order to ensure that the clamping surface has a larger effective surface on the water stop 4, the setting height of the third bolt assembly 32, that is, the distance from the setting point to the bottom of the angle steel 31, is not less than half the height of the water stop 4. Therefore, in the preferred embodiment, the clamp is two limbs arranged opposite to each other on the two angle steels 31, and the third fastener is the third bolt assembly 32, and the two together constitute the clamp 3.

[0039] In other specific embodiments, the sliding member in the transverse positioning member may also be a complete pipe. The bottom of the pipe is vertically fixed with two clamping plates, which are arranged opposite to each other to enclose a clamping space for the water stop 4. The third fastener is arranged on the two clamping plates, and in the tightened state, the two clamping plates are laterally pressed to clamp and fix the water stop 4.

[0040] In the actual construction process, if the waterstop 4 is tilted due to the pouring and vibration of concrete, loosen the second bolt assembly 22, move the sliding square steel pipe 21 to a certain position to restore the waterstop 4 to a vertical state, and then tighten the second bolt assembly 22 to complete the deviation correction work. If the waterstop has a height deviation, loosen the first bolt assembly 12 and the fourth bolt assembly 14, move the fixing device to the accurate elevation along the extension direction of the inverted arch steel bar 5, and tighten the above two groups of bolt assemblies; at this time, the waterstop 4 may be in a tilted state, and then adjust the transverse positioning member 2 according to the steps described above to restore the waterstop 4 to a vertical state, and the height correction work can be completed. After the concrete pouring is completed and reaches the strength, loosen the bolt assemblies of the fixing device, detach the device from the waterstop 4, and then remove it from the inverted arch steel bar 5 to complete the disassembly work.

[0041] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. An adjustable tunnel embedded waterstop fixing device, characterized in that: It includes height positioning parts, lateral positioning parts and clamps; The height positioning member is arranged horizontally, with one end sleeved on the surface of the inner ring inverted arch steel bar and the other end sleeved on the surface of the outer ring inverted arch steel bar; the height positioning member comprises a telescopic rod, a rod end limit assembly and a first fastener; the rod end limit assembly is arranged at both ends of the telescopic rod to control the end of the telescopic rod to move or fix at any height position of the inverted arch steel bar; the first fastener is arranged on the side wall of the telescopic rod to lock the length of the telescopic rod; The transverse positioning member includes a sliding member and a second fastening member; The sliding member is sleeved on the surface of the telescopic rod and can slide along the extension direction of the telescopic rod; The second fastener is arranged on the side wall of the sliding member, and can fix the sliding member at any position in the extension direction of the telescopic rod; The clamp is vertically arranged, the upper end is vertically fixed to the bottom of the sliding member, and the lower end can clamp and fix the water stop.

2. The adjustable tunnel embedded waterstop fixing device according to claim 1 is characterized in that: The rod end limiting assembly includes a sleeve and a fourth fastener; a sleeve is connected to one end of the telescopic rod, and the inner diameter of the sleeve is larger than the diameter of the inverted arch steel bar; a fourth fastener is radially arranged on the side wall of the sleeve; an oblique U-shaped groove is arranged at the other end of the telescopic rod, which works in conjunction with the sleeve and the fourth fastener.

3. The adjustable tunnel embedded waterstop fixing device according to claim 1 is characterized in that: The rod end limiting assembly includes a sleeve and a fourth fastener; one end of the telescopic rod is connected with the sleeve, and the inner diameter of the sleeve is larger than the diameter of the inverted arch reinforcement; the fourth fastener is radially arranged on the side wall of the sleeve.

4. The adjustable tunnel embedded waterstop fixing device according to claim 1 is characterized in that: The telescopic rod comprises an outer ring pipe fitting and an inner ring pipe fitting; the outer ring pipe fitting and the inner ring pipe fitting are sleeved in the axial direction and have the same cross-section type.

5. The adjustable tunnel embedded waterstop fixing device according to claim 4 is characterized in that: The first fastener is arranged on the side wall of the outer ring tube and is limited in translation along the axial direction of the outer ring tube; when the first fastener is in a tightened state, it abuts against the outer wall of the inner ring tube; when the first fastener is in a loosened state, it does not contact the inner ring tube.

6. The adjustable tunnel embedded waterstop fixing device according to claim 1 is characterized in that: The sliding member is a pipe having the same cross-section type as the telescopic rod, and a radial dimension larger than that of the telescopic rod.

7. The adjustable tunnel embedded waterstop fixing device according to claim 6 is characterized by: The second fastener is arranged on the side wall of the sliding member and is limited in translation along the axial direction of the sliding member; when the second fastener is in a fastened state, it abuts against the outer wall of the telescopic rod; when the second fastener is in a loose state, it does not contact the telescopic rod.

8. The adjustable tunnel embedded waterstop fixing device according to claim 1 is characterized in that: The clamp includes two clamping plates and a third fastener; the two clamping plates are arranged opposite to each other to enclose a clamping space for the water stop strip; the third fastener is arranged on the two clamping plates to adjust the width of the clamping space.

9. An adjustable tunnel embedded waterstop fixing device according to claim 8, characterized in that: The sliding member is composed of two independent pipes arranged side by side; the two clamping plates are arranged separately, that is, a clamping plate is vertically fixedly connected to the bottom of each pipe.

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