Wellhead template supporting device

Abstract

The invention discloses a wellhead template supporting device, which belongs to the technical field of constructional engineering and comprises a base, a vertical rod is fixedly connected to the center of the base, a first positioning ring is slidably connected to the vertical rod, at least three uniformly distributed positioning cross rods are fixedly connected to the first positioning ring, and an abutting rod is slidably connected to each positioning cross rod. An abutting end is arranged at the end, away from the positioning transverse rod, of the abutting rod so that the inner formwork can abut against the abutting end, an inclined rod is hinged to each abutting end, a second positioning ring is slidably connected to the vertical rod, and the end, away from the abutting end, of each inclined rod is hinged to the second positioning ring; the sliding direction of the abutting rod is controlled by adjusting the distance between the first positioning ring and the second positioning ring. By controlling the first positioning ring and the second positioning ring, it is guaranteed that the distances from the abutting ends evenly distributed in the circumferential direction to the vertical rods between the abutting ends are the same, the accuracy of the size of the inner formwork after pouring forming is guaranteed, and the inner formwork can adapt to well mouths of different sizes.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a wellhead template supporting device. Background Art

[0002] At present, the circular formwork support system in construction is a construction method that uses a special support formwork to support the cylindrical structure, and is mostly used for the construction and pouring of inspection wells. The existing method for internal support of the formwork is to use a "cross" or "M" shaped wooden square to support the inner side of the circular formwork, such as Figure 1 As shown, different types of wood and spacing are selected according to the diameter of the inspection well. This method makes it easy for the abutting wood to tilt when pouring concrete and vibrating, resulting in the wellhead size deviation and inconsistent wellhead diameter. In addition, this method requires cutting the wood according to the different inspection well diameters, and has poor versatility.

[0003] Therefore, it is urgent to design a wellhead formwork support device to solve the above-mentioned problems that the wooden abutment support is easy to tilt and has poor versatility. Summary of the invention

[0004] In order to solve the technical problems mentioned in the background technology that the wooden abutment support is easy to tilt and has poor versatility, a wellhead template support device is provided to solve the above problems.

[0005] To achieve the above purpose, the specific technical solution of the wellhead template support device of the present invention is as follows: A wellhead template support device includes a base, a vertical rod fixedly connected to the center of the base, a first positioning ring slidably connected to the vertical rod, at least three evenly distributed positioning cross rods fixedly connected to the first positioning ring, an abutment rod slidably connected to each positioning cross rod, an abutment end head is provided at one end of the abutment rod away from the positioning cross rod so that the inner template abuts the abutment end head, an oblique rod is hinged on each abutment end head, a second positioning ring is slidably connected to the vertical rod, and one end of each oblique rod away from the abutment end head is hinged to the second positioning ring, and the sliding direction of the abutment rod is controlled by adjusting the distance between the first positioning ring and the second positioning ring.

[0006] Furthermore, the abutment rod comprises a slide rod, one end of which is fixedly connected to the abutment end head, a slide groove is provided inside the positioning cross bar, and the slide rod is slidably connected to the slide groove, so that the abutment rod is slidably connected to the positioning cross bar.

[0007] Furthermore, a first ear plate is provided on the abutting end, a first ear hole is opened on the first ear plate, a first through hole is opened on the end of the oblique rod away from the second positioning ring, and the first through hole and the first ear hole are connected by a pin shaft to hinge the abutting end and the oblique rod.

[0008] Furthermore, a second ear plate is provided on the second positioning ring, a second ear hole is opened on the second ear plate, a second through hole is opened at one end of the oblique rod away from the abutting end, and the second through hole and the second ear hole are connected by a pin shaft to hinge the second positioning ring and the oblique rod.

[0009] Furthermore, the first positioning ring is provided with a first locking screw hole, in which a first locking bolt is threaded, and the first locking bolt is rotated to make the first locking bolt press against the vertical rod, thereby fixing the first positioning ring to the vertical rod.

[0010] Furthermore, the second positioning ring is provided with a second locking screw hole, in which a second locking bolt is threaded, and the second locking bolt is rotated to make the second locking bolt press against the vertical rod, thereby fixing the second positioning ring to the vertical rod.

[0011] Furthermore, three telescopic legs are provided on the base to adjust the levelness of the base.

[0012] Furthermore, a level is provided on the base to measure the levelness of the base.

[0013] Furthermore, the telescopic leg comprises a bottom groove, a knob is rotatably connected to the bottom groove, the leg is screwed onto the knob, and the leg is extended by rotating the knob.

[0014] Furthermore, it also includes an outer ring steel belt to clamp and fix the outer template, and the outer template is provided with a steel belt groove matching the outer ring steel belt.

[0015] The wellhead formwork support device of the present invention has the following advantages: the present invention ensures that the distances between each circumferentially evenly distributed abutting end and the vertical rod are the same by controlling the first positioning ring and the second positioning ring, thereby ensuring the accuracy of the size of the inner formwork after casting and forming, and can adapt to wellhead formworks of different sizes. The first positioning ring and the second positioning ring are positioned and fixed on the vertical rod, thereby avoiding the problem of easy tilting and falling off when using wooden planks for abutment during concrete pouring and vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the "M"-shaped wellhead template support device.

[0017] Figure 2 It is a schematic structural diagram of the wellhead template support device of the present invention.

[0018] Figure 3 It is a partial structural cross-sectional view of the present invention.

[0019] Figure 4 It is a schematic diagram of the bottom structure of the wellhead template support device of the present invention.

[0020] Explanation of marks in the figure: 1. Inner template; 2. Outer template; 3. Wooden square; 4. Base; 5. Vertical rod; 6. First positioning ring; 601. First locking screw hole; 602. First locking bolt; 7. Positioning cross bar; 701. Slide groove; 8. Abutment rod; 801. Slide rod; 802. Abutment end; 8021. First ear plate; 8022. First ear hole; 9. Oblique rod; 901. First through hole; 902. Second through hole; 10. Second positioning ring; 1001. Second ear plate; 1002. Second ear hole; 1003. Second locking screw hole; 1004. Second locking bolt; 11. Telescopic leg; 1101. Bottom groove; 1102. Knob; 1103. Leg; 12. Level. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0023] Please refer to the attached Figure 1 To Attachment Figure 4 The wellhead template support device of the present invention is described.

[0024] The existing method of supporting the inside of the formwork is to use a "X" or "M" shaped wooden square 3 to abut and support the inner side of the circular formwork. The wooden square 3 is easily tilted when the concrete is poured and vibrated, which causes the wellhead size to be offset after the concrete solidifies. In addition, the wooden square 3 needs to be cut according to the different inspection well diameters, and its versatility is poor.

[0025] Therefore, the present invention provides a wellhead template support device, such as Figure 2As shown, it includes a base 4, a vertical rod 5 is fixedly connected to the center of the base 4, a first positioning ring 6 is slidably connected to the vertical rod 5, at least three evenly distributed positioning cross bars 7 are fixedly connected to the first positioning ring 6, each positioning cross bar 7 is slidably connected to an abutment rod 8, an end of the abutment rod 8 away from the positioning cross bar 7 is provided with an abutment terminal 802, so that the inner template 1 abuts against the abutment terminal 802, each abutment terminal 802 is hinged with an oblique rod 9, a second positioning ring 10 is slidably connected to the vertical rod 5, and an end of each oblique rod 9 away from the abutment terminal 802 is hinged to the second positioning ring 10, and the sliding direction of the abutment rod 8 is controlled by adjusting the distance between the first positioning ring 6 and the second positioning ring 10. Specifically, the first positioning ring 6 and the second positioning ring 10 can be positioned on the vertical rod 5, and when the distance between the first positioning ring 6 and the second positioning ring 10 is shortened, the abutment end 802 extends outward with the vertical rod 5 as the center and abuts against the inner template 1, thereby supporting the inner template 1; when the pouring is completed, the distance between the first positioning ring 6 and the second positioning ring 10 is increased, and the abutment end 802 shrinks inward with the vertical rod 5 as the center and separates from the inner template 1, thereby realizing the disassembly of the device.

[0026] As a preferred example, Figure 3 As shown, the abutment rod 8 includes a slide rod 801, one end of which is fixedly connected to an abutment end 802, and a slide groove 701 is provided inside the positioning cross bar 7. The slide rod 801 is slidably connected to the slide groove 701, so that the abutment rod 8 is slidably connected to the positioning cross bar 7. Specifically, placing the slide rod 801 in the slide groove 701 not only provides an operating space for positioning and adjusting the first positioning ring 6 and the second positioning ring 10, but also saves materials.

[0027] Preferably, a friction layer is provided on the end of the abutting end 802 away from the sliding rod 801, and the friction layer of the abutting end 802 abuts against the inner template 1 to increase the fixing effect of the abutment and fastening. Optionally, the material of the friction layer may be rubber, or a pattern that increases friction may be provided on the abutting end 802.

[0028] As a preferred example, Figure 2 As shown, a first ear plate 8021 is provided on the abutting end 802, a first ear hole 8022 is opened on the first ear plate 8021, a first through hole 901 is opened on the end of the oblique rod 9 away from the second positioning ring 10, and the first through hole 901 and the first ear hole 8022 are connected by a pin shaft so that the abutting end 802 is hinged to the oblique rod 9.

[0029] As a preferred example, Figure 2 and Figure 4As shown, the second positioning ring 10 is provided with a second ear plate 1001, the second ear plate 1001 is provided with a second ear hole 1002, and the end of the oblique rod 9 away from the abutment end 802 is provided with a second through hole 902, and the second through hole 902 and the second ear hole 1002 are connected by a pin shaft to hinge the second positioning ring 10 with the oblique rod 9.

[0030] Preferably, the first positioning ring 6 is provided with a first locking screw hole 601, and a first locking bolt 602 is threaded into the first locking screw hole 601. The first locking bolt 602 is rotated to make the first locking bolt 602 press against the vertical rod 5, thereby fixing the first positioning ring 6 to the vertical rod 5; the second positioning ring 10 is provided with a second locking screw hole 1003, and a second locking bolt 1004 is threaded into the second locking screw hole 1003. The second locking bolt 1004 is rotated to make the second locking bolt 1004 press against the vertical rod 5, thereby fixing the second positioning ring 10 to the vertical rod 5. At the same time, other locking devices can be provided on the first positioning ring 6 and the second positioning ring 10 to fix them to the vertical rod 5. For example, a first locking ring is provided on the first positioning ring 6, and a second locking ring is provided on the second positioning ring 10. The first locking ring and the second locking ring are rotated, and the teeth in the first locking ring and the second locking ring clamp the vertical rod 5, thereby fixing the first positioning ring 6 and the second positioning ring 10 to the vertical rod 5.

[0031] like Figure 4 As shown, three telescopic legs 11 are provided on the base 4 to adjust the horizontality of the base 4, thereby avoiding the influence of uneven ground on the verticality of the wellhead.

[0032] Preferably, a level 12 is provided on the base 4 to measure the levelness of the base 4. Specifically, the base 4 is leveled by adjusting the three telescopic legs 11 to center the bubble of the level 12, thereby ensuring the verticality of the wellhead.

[0033] Preferably, the telescopic leg 11 includes a bottom groove 1101, to which a knob 1102 is rotatably connected, and a leg 1103 is screwed on the knob 1102. The knob 1102 is rotated to extend the leg 1103. Specifically, the height of different legs 1103 is controlled by rotating different knobs 1102, thereby leveling the base 4.

[0034] Preferably, the wellhead formwork support device of the present invention also includes an outer ring steel belt to clamp and fix the outer formwork 2. The outer formwork 2 is provided with a steel belt groove matching the outer ring steel belt. The steel belt groove fixes the outer ring steel belt to avoid displacement of the outer ring steel belt during concrete vibration.

[0035] Preferably, the first positioning ring 6, the second positioning ring 10, the positioning cross bar 7, the abutment rod 8 and its abutment end 802, the diagonal rod 9 and the second positioning ring 10 are used as a set, and one or more sets can be flexibly selected on the same vertical rod 5 to support the inner template 1 according to the depth of the wellhead.

[0036] The present invention controls the first positioning ring 6 and the second positioning ring 10 to ensure that the distances between each circumferentially evenly distributed abutting end 802 and the vertical rod 5 are the same, thereby ensuring the accuracy of the size of the inner template 1 after casting and forming, and being able to adapt to wellhead templates of different sizes. The first positioning ring 6 and the second positioning ring 10 are positioned and fixed on the vertical rod 5 to avoid the problem of easy tilting and falling off of the wooden square 3 when abutting during concrete pouring and vibration.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A wellhead template support device, characterized in that: It includes a base, a vertical rod fixedly connected to the center of the base, a first positioning ring slidably connected to the vertical rod, at least three evenly distributed positioning cross rods fixedly connected to the first positioning ring, an abutment rod slidably connected to each positioning cross rod, an abutment end head is provided at the end of the abutment rod away from the positioning cross rod so that the inner template abuts against the abutment end head, an oblique rod is hinged on each abutment end head, a second positioning ring is slidably connected to the vertical rod, and one end of each oblique rod away from the abutment end head is hinged to the second positioning ring, and the sliding direction of the abutment rod is controlled by adjusting the distance between the first positioning ring and the second positioning ring.

2. The wellhead template support device according to claim 1, characterized in that: The abutment rod comprises a slide rod, one end of which is fixedly connected with an abutment end head, a slide groove is provided inside the positioning cross bar, and the slide rod is slidably connected with the slide groove, so that the abutment rod is slidably connected with the positioning cross bar.

3. The wellhead template support device according to claim 2, characterized in that: A first ear plate is provided on the abutting end, a first ear hole is opened on the first ear plate, a first through hole is opened on the end of the oblique rod away from the second positioning ring, and the first through hole and the first ear hole are connected by a pin shaft to hinge the abutting end with the oblique rod.

4. The wellhead template support device according to claim 2 or 3, characterized in that: The second positioning ring is provided with a second ear plate, the second ear plate is provided with a second ear hole, the end of the oblique rod away from the abutting end is provided with a second through hole, the second through hole and the second ear hole are connected by a pin shaft to hinge the second positioning ring and the oblique rod.

5. The wellhead template support device according to claim 1, characterized in that: The first positioning ring is provided with a first locking screw hole, in which a first locking bolt is threaded. The first locking bolt is rotated to make the first locking bolt press against the vertical rod, thereby fixing the first positioning ring and the vertical rod.

6. The wellhead template support device according to claim 1, characterized in that: The second positioning ring is provided with a second locking screw hole, in which a second locking bolt is threaded. The second locking bolt is rotated to make the second locking bolt press against the vertical rod, thereby fixing the second positioning ring and the vertical rod.

7. The wellhead template support device according to claim 1, characterized in that: There are three telescopic legs on the base to adjust the levelness of the base.

8. The wellhead template support device according to claim 7, characterized in that: A level is provided on the base to measure the levelness of the base.

9. The wellhead template support device according to claim 7, characterized in that: The telescopic supporting leg comprises a bottom groove, a knob is rotatably connected to the bottom groove, the supporting leg is screwed on the knob, and the supporting leg is extended by rotating the knob.

10. The wellhead template support device according to claim 1, characterized in that: It also includes an outer ring steel belt for clamping and fixing the outer template, and the outer template is provided with a steel belt groove matching the outer ring steel belt.

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