TWM465438U - Improved structure of formwork tie - Google Patents

Description

Structural improvement of the template tie rod

This creation relates to the structural improvement of a template tie rod, which can be used as an external support of the template, and can be easily assembled on the template, which is advantageous for the frame group and the removal work of the template.

When constructing a concrete wall, an external support must be provided on the outside of the formwork, and an inner support must be provided on the inside of the formwork. The outer support of the conventional formwork is a tie rod. When the concrete is dry and removed, the tie rod is cut. The sheared rod is buried in the wall and the cut ends are exposed outside the wall. In order to avoid scratching the exposed end, the entire wall must be filled to cover the exposed end.

There is a combination lever in the workshop, which can make the part buried in the wall shrink inside after the construction is completed. Referring to FIG. 1, the pull rod includes an inner rod 10, two outer rods 11, 11 and two screw members 12, 12. The two screwing members 12 and 12 are respectively screwed at the two ends of the inner rod 10. The two outer rods 11 and 11 are respectively screwed to the other ends of the two screw members 12 and 12 to form a complete rod. The two screw members 12, 12 are located inside the template and can be supported inside the template 13. The outer rods 11 and 11 can be sleeved with outer support spacers 14 and positioned by nuts 15, so that the outer ends of the template can be disposed at both ends of the rods. After the concrete is dry-removed and the template 13 is removed, the two outer rods 11, 11 and the two screw members 12, 12 can be removed for reuse. The inner rod 10 is buried in the wall. After the screw member 12 is removed, a recess 16 can be formed in the wall surface, and both ends of the inner rod are hidden into the recess 16 as shown in FIG. 2, after the soil 17 is filled in the recess 16 The problem of the exposed inner rod 10 can be avoided.

When the template 13 is assembled, since the reinforcing bars (not shown) are stored between the two templates 13, 13, the worker must shuttle between the template 13 and the reinforcing bars to erect the inner rod 10 and the screw member 12 to increase assembly. The difficulty of the drawbar is more detrimental to the erection of the template 13. Further, when the template 13 is removed after the completion of the grouting, in the work of removing the outer rod 11, it is necessary to first clamp the outer rod 11 with the pliers, and then retract the outer rod 11 by rotating the pliers, which is not convenient in operation.

Applicant's previous application No. M446800 "Tie Rod Structure of Formwork" has the advantage of avoiding the exposure of the inner rod and the ease of assembly. However, the work of disassembling the outer rod and the screw joint has not been at an ideal stage.

The structure of the stencil pull rod provided by the present invention is improved, which is through the preset perforation of the template to lock the outer support member. The pull rod comprises: an inner rod, a first screw joint, a second screw joint and two outer rods. The two ends of the inner rod are respectively screwed to the inner ends of the first screw member and the second screw member. The two outer rods are respectively screwed to the outer ends of the first screw member and the second screw member. The outer diameter of the first screw member is a cone extending from the inside to the outside, and the outer peripheral wall is provided with an outer diameter protruding flange, the flange can abut the outer side of the template, so that the first Screw positioning. The outer diameter of the second screw member is a bobbin shape which is tapered from the middle to the both ends to facilitate the through hole which is preset through the template.

The second outer diameter of the second screw member is provided with an external thread to screw a nut, and the nut can be pressed on the outer side of the template to position the second screw.

The outer end of the first screw member is connected to a non-circular convex shaft, and the protruding shaft can be sleeved with the sleeve of the disassembly tool. The outer end of the second threaded member is connected to a non-circular protruding shaft, and the protruding shaft can be sleeved with the sleeve of the disassembly tool.

The cross section of the outer end convex shaft of the first screw member is a regular polygon.

The outer end of the outer rod is connected with a non-circular convex shaft, and the protruding shaft can be sleeved with the sleeve of the disassembly tool.

The cross section of the outer end of the outer rod has a regular shape.

The cross section of the outer end of the outer rod is an incomplete circular shape having at least one cutting chord.

With the above structure, the work of the pull rod on the formwork is made simpler, and the outer rod and the first screw joint can be quickly removed by electric or pneumatic tools to accelerate the removal of the formwork.

10‧‧‧ Inner rod

11‧‧‧Outer

12‧‧‧ Screws

13‧‧‧ template

14‧‧‧Outer support gasket

15‧‧‧ nuts

16‧‧‧ recess

17‧‧‧Replenishment

18‧‧‧ Inner support

20‧‧‧ inner rod

21‧‧‧ External thread

22‧‧‧ External thread

30‧‧‧Outer

31‧‧‧Shaft axis

32‧‧‧Cutting strings

40‧‧‧External

41‧‧‧Shaft axis

42‧‧‧Cutting strings

50‧‧‧First screw joint

51‧‧‧ screw holes

52‧‧‧Flange

53‧‧‧Shaft axis

50'‧‧‧First screw joint

52'‧‧‧ external thread

53’‧‧‧ Nuts

54’‧‧‧shims

60‧‧‧Second screw

61‧‧‧ screw holes

62‧‧‧ external thread

63‧‧‧ nuts

64‧‧‧shims

70‧‧‧ recess

71‧‧‧Replenishment

Figure 1 is a diagram of the state of use of the learner.

Figure 2 is a state diagram after the practitioner removes the template.

Figure 3 is an external view of the present embodiment.

Figure 4 is a diagram showing the state of use of the embodiment shown in Figure 3.

Figure 5 is a state diagram after the outer support spacer in Figure 4 is removed.

Figure 6 is a state diagram after removing the first and second screw members and the template in Figure 5.

Figure 7 is an enlarged cross-sectional view showing another embodiment of the outer end male shaft of the outer rod.

Figure 8 is an enlarged cross-sectional view showing still another embodiment of the outer end convex shaft of the outer rod.

Figure 9 is a diagram showing the state of use of another embodiment of the present invention.

Figure 10 is a state diagram of the outer rod of the present invention in combination with the conventional screw connector shown in Fig. 1.

The applicant has the difficulty of disassembling the outer rod and the screw joint in view of the difficulty of the above-mentioned conventional drawbar in the operation of the frame set template, and the aforementioned "Mast Rod Structure of the Template" No. M446800 In the absence of an ideal phase, a staff member has no need to enter the tie rod structure that works between the stencils, and it is easier to remove the tie rods to improve the structure. The embodiments are listed, and the features and effects of the authoring device are detailed in conjunction with the drawings.

Please refer to Figure 3 and Figure 4. The drawbar structure of the template disclosed in the present invention comprises an inner rod 20, two outer rods 30, 40, a first screw member 50, and a second screw member 60. The two ends 20 of the inner rod can respectively screw the first screw member 50 and the second screw member 60. The two outer rods 30 and 40 can be respectively screwed to the first screw member 50 and the second screw member 60 to form a complete rod.

The outer rods 21 are provided at both ends of the inner rod 20, and the length thereof is smaller than the distance between the inner and outer two templates 13, 13. A screw hole 51 is disposed in a center of the first screw member 50, and an inner end thereof is screwed to one end of the inner rod 20. A screw hole 61 is disposed in a center of the second screw member 60, and an inner end thereof is screwed to the other end of the inner rod 20. The two outer rods 30, 40 can be respectively connected to the outer ends of the first screw member 50 and the second screw member 60 to form a complete tie rod.

The outer diameter of the first screw member 50 is a cone which is gradually increased from the inside and the outside, and an outer diameter end of the flange 52 is provided at the outer end thereof, and the flange 52 can abut against the outer side surface of the template 13 . The first screw member 50 is positioned. In this embodiment, the flange 52 is circular, and other convex regular polygons may be selected in practice.

The outer diameter of the second screw member 60 is a shuttle body shape which is tapered from the middle to the both ends. When the tie rod is to be assembled on the template 13, the inner rod 20 and the second screw member 60 are first screwed together with an outer rod 40. The assembled portion is penetrated through the two templates 13 and 13, and the first screw member 50 is continuously screwed from the outer side of the template 13 to the inner rod 20, and the other outer rod 30 and the first screw member 50 are screwed. Connect to form a complete tie rod. An outer thread 62 is disposed at a maximum outer diameter of the second screw member 60 to screw a nut 63, and the nut 63 can be pressed against the outer side surface of the template 13 to position the second screw member 60. therefore, The work of arranging the outer support spacers 14 on the two outer rods 30, 40 is simpler. A spacer 64 may be disposed between the nut 63 and the template 13. The nut 15 is screwed on the outer support pad 14 to form an outer support. An inner support 18 can be disposed between the two templates 13, 13. The inner support member 18 is stamped and formed of a metal foil, which is a conventional technique and is not the subject of the present invention, and therefore will not be described again.

The outer ends of the outer rods 30, 40 are connected with a non-circular convex shaft 31, 41 which can be fitted with a sleeve (not shown) of the disassembly tool. When the grouting is completed and the concrete is solidified to the extent that the formwork 13, 13 is removed, the outer support shim 14 can be removed first, as shown in FIG. The sleeve of the pneumatic tool (or power tool) is continuously placed outside the protruding shafts 31, 41 to quickly remove the outer rods 30, 40.

The outer end of the first screw member 50 is connected to a non-circular convex shaft 53 which can be sleeved with a sleeve (not shown) of the disassembly tool. That is, the sleeve of the pneumatic tool (or the power tool) can be sleeved outside the protruding shaft 53 of the first screw member 50, and the first screw member 50 can be unscrewed and removed. Further, the second screw 60 is unscrewed and the template 13 and 13 can be removed, and the concrete wall surface is in the state shown in Fig. 6. Thereafter, the soil 71 is replenished at the recess 70 of the wall to cover the inner rod 20.

The cross-sectional shape of the outer end convex shafts 31, 41 of the outer rods 30, 40 may be a regular polygon, for example, a triangle, a square, a regular hexagon, and this embodiment is a regular hexagon. The cross-sectional shape of the outer end projections 31, 41 of the outer rods 30, 40 may also be an incomplete circular shape having at least one cutting chord 32, 42, for example, an incomplete circular shape including a cutting chord 32, 42 ( See Figure 7) for an incomplete circle with two oppositely placed cutting strings 32, 42 (see Figure 8).

The convex axis 53 of the first screw member 50 may have a regular polygonal shape such as a triangle, a square, or a regular hexagon. This embodiment is a regular hexagon.

Please refer to another embodiment of the tie rod shown in FIG. The outer diameter of the first screw member 50' is a shuttle shape which is tapered from the middle to the both ends, and is the same as the second screw member 60. An outer thread 52' is disposed at a maximum outer diameter of the first screw member 50' to screw a nut 53', and the nut 53' can be pressed on the outer side of the template 13, so that the first screw member 50' positioning. A spacer 54' may be disposed between the nut 50' and the template 13.

The male shafts 31, 41 at the outer ends of the outer rods 30, 40 of the present design are designed to be used to disassemble the outer rods 30, 40 using electric or pneumatic tools, so that the work of removing the outer rods 30, 40 is light and fast. Fig. 10 shows the state in which the outer rod of the present invention is used in conjunction with the conventional screw member 12 shown in Fig. 1, and the work of the rods 30, 40 can be removed lightly and quickly.

The above description is by way of a detailed description of the present invention, and is not intended to limit the scope of the present invention. Anyone who is familiar with such a skilled person can understand, and appropriate changes and adjustments will not lose the essence of this creation, and will not deviate from the spirit and scope of this creation.

13‧‧‧ template

14‧‧‧Outer support gasket

15‧‧‧ nuts

18‧‧‧ Inner support

20‧‧‧ inner rod

21‧‧‧ External thread

22‧‧‧ External thread

30‧‧‧Outer

31‧‧‧Shaft axis

40‧‧‧External

41‧‧‧Shaft axis

50‧‧‧First screw joint

51‧‧‧ screw holes

52‧‧‧Flange

53‧‧‧Shaft axis

60‧‧‧Second screw

61‧‧‧ screw holes

62‧‧‧ external thread

63‧‧‧ nuts

64‧‧‧shims

Claims (10)

A structural improvement of the template tie rod, which is through a preset perforation of the two templates for locking the outer support member; the pull rod comprises: an inner rod, a first screw member, a second screw member and two outer rods; The two ends of the inner rod are respectively screwed to the inner ends of the first screw member and the second screw member; the outer rods are respectively screwed to the outer ends of the first screw member and the second screw member The utility model is characterized in that: the outer end of each outer rod is connected with a non-circular convex shaft, and the convex shaft can be sleeved with the sleeve of the disassembly tool. The structural improvement of the template tie rod according to claim 1, wherein the outer end of the outer rod has a regular polygonal cross section. The structural improvement of the template tie rod according to claim 2, wherein the convex shaft of the outer end of the outer rod has a convex axis section which is one of a square and a regular hexagon. The structural improvement of the stencil pull rod of claim 3, wherein the outer end of the outer rod has an incomplete circular shape having at least one cutting chord. The structural improvement of the template tie rod according to claim 4, wherein the outer end of the outer rod has an incomplete circular shape with opposite cutting strings. The structural improvement of the template tie rod according to claim 1, wherein the outer diameter of the first screw member is a cone which is gradually increased from the inside to the outside, and an outer diameter of the outer peripheral wall is provided with a sudden increase in the outer diameter. a flange; the flange can abut the outer side of the template to position the first screw; the outer end of the first screw is connected to a non-circular convex shaft, the protruding shaft can be coupled with the removal tool The sleeve is made to fit the sleeve. The structural improvement of the template tie rod according to claim 6, wherein the convex portion of the first screw member has a regular polygonal cross section. The structural improvement of the template tie rod according to claim 7 is characterized in that the convex axis of the first screw member is one of a square and a regular hexagon. The structural improvement of the template tie rod according to claim 6, wherein the second screwing The outer diameter of the piece is a bobbin shape which is tapered from the middle to the both ends; the outer diameter of the second screw member is provided with an external thread to screw a nut; the nut can be pressed against the template The outer side surface allows the second screw to be positioned. The structural improvement of the stencil pull rod according to the first aspect of the invention, wherein the outer diameters of the first screwing member and the second screwing member are both bobbin shapes which are tapered from the middle to the both ends; The outer diameters of the first screw member and the second screw member are respectively provided with external threads to respectively screw a nut; the two nuts can be respectively pressed against the outer sides of the two templates, and The first screw member and the second screw member are respectively positioned.