JP2005054481A - Height adjusting device for underground structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a height adjusting device for an underground structure capable of adjusting a height only by a screw operation from above the super structure. <P>SOLUTION: The height adjusting device for the underground structure is arranged on the foundation structure of the underground structure, and adjusts the height of the super structure such as a receiving frame. A screw section 13 is installed to the foundation structure 12 in the vertical direction, and a screw 16 is mounted in a vertically movable manner by screwing the screw 16 to the screw section 13. A receiving seat 17 vertically moved together with the screw 16 and having a function of receiving the upper structure 14 is secured to the screw 16, an operating member 30 is fitted to the screw 16 from above the super structure 14 and the super structure 14 can be moved vertically by a rotation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an apparatus for adjusting the height of an upper structure such as a receiving frame that is arranged on a foundation structure of an underground structure.

  For example, if there is a step between the manhole cover and the road on which it is installed, a pedestrian may be tripped or the car may be shocked. Therefore, it is necessary to match the manhole cover surface with the road surface. In Japanese Patent Application Laid-Open Nos. 10-68136 and 2001-182727, height adjustment using a screw is provided between the cover receiving frame and the lower structure. It has been proposed to insert a device and finely adjust the height of the receiving frame.

  These are all adjusted by operating the nut on the bolt in the process of assembling the receiving frame during construction. However, since the receiving frame is as heavy as about 40 kg, it is difficult to operate the nut and there is a problem that fine adjustment is difficult. Further, when the space between the receiving frame and the lower structure is narrow, workability is further reduced. Further, in the above invention, the latter is provided with a nut turning tool having a latching recess provided on a nut that is screwed up and down to be screwed up and down, and a latching claw that is fitted in the recess. This enables work from above the receiving frame. However, the nut turning tool must be inserted into the anchor hole of the receiving frame, and if the nut position is slightly shifted from the anchor hole, the nut turning tool cannot be fitted into the recess.

In the case of Japanese Patent Laid-Open No. 2002-21102, the nut is positioned in a state in which the nut is screwed into a bolt protruding upward from the anchor hole of the receiving frame and the receiving frame is lifted by the lifting means provided on the nut. Disclosure. Since this construction can be applied without embedding the height adjusting device in the cement mortar, it can be used repeatedly and is economical, but requires a strong spring and requires a large number of parts to handle in the work.

  This invention was made paying attention to the said point, The subject is providing the height adjustment apparatus for underground structures in which height adjustment is possible only by screw operation from the upper part of an upper structure. . Another object of the present invention is to enable height adjustment by rotating an anchor bolt that fastens the upper structure and the foundation structure.

  In order to solve the above-described problems, the present invention provides a foundation structure having a threaded portion installed in the vertical direction, a mating screw provided in the threaded portion so as to be movable up and down, and movable up and down together with the mating screw. A receiving seat having a function of receiving the structure is provided on the mating screw, an operation member is attached to the mating screw from above the upper structure, and the upper structure can be moved up and down by rotating. .

  The main object of the present invention is to adjust height, inclination, etc. in order to make the lid surface coincide with the road surface in manholes and other facilities constituting the underground structure. The manhole means a mouth that allows people to enter and exit, but the present invention is naturally applicable to a lid receiving device of a smaller size without being limited to this. In the present invention, the lid receiving device is composed of an upper structure such as a receiving frame for receiving an iron lid, and a lower basic structure, and the basic structure is a member commonly referred to as an underarm or a slant wall, adjustment Includes construction elements such as frames and raised frames.

  A screw part is installed in the up-and-down direction on the upper part of the foundation structure which consists of them. This threaded part is a part to which a mating screw is screwed. For example, an insert nut or the like embedded in an adjustment frame as a foundation structure corresponds to the threaded part, and an anchor bolt or the like to be screwed into the insert nut is a mating screw. Applicable. In addition, since it is possible to plant a bolt having a male thread on the foundation structure to form a threaded portion and to screw a pipe having a female thread into the mating thread, the threaded portion is not limited to a female thread, and similarly The mating screw is not necessarily a male screw. However, since the anchor bolt is indispensable for fastening the upper structure to the foundation structure, it is the most desirable application form of the present invention to use the anchor bolt as a screw portion for installing in the foundation structure. .

  The mating screw is provided with a seat that can move up and down together with the mating screw and receives the upper structure. The height of the upper structure is adjusted by the vertical movement that occurs in response to the screwing operation of the mating screw. There are two ways of providing the seats: one that is inserted in the mating screw without screwing (see FIGS. 4 and 5), and one that is integral with the mating screw (see FIGS. 6 and 7). In the former case, a member for positioning at one point on the mating screw is used together, and in the latter case, means for fixing to one point on the mating screw is used.

  An operating member for operating the mating screw is attached to the mating screw from above the upper structure. It is desirable that the operation member be detachably attached to the mating screw. In order to transmit the acting force of the operating member to the mating screw by mounting, the engaging portion of the operating member and the mating screw are engaged. When the mating screw is also used as an anchor bolt, it is desirable that its upper end does not protrude more than necessary from the receiving frame, and the lower end does not protrude too much from the lower structure. For this reason, it is assumed that the surplus portion of the upper end protruding after finishing the height adjustment and completing the fastening as the anchor bolt can be cut off.

  The height adjusting device for an underground structure according to the present invention is provided with at least three screw portions as described above, screwing mating screws each having a receiving seat, and adjusting the height of the upper structure such as a receiving frame. Adjustment is generally considered (see FIG. 2). However, considering the minimum construction method, it is possible to incline the upper structure at only one place.

  Moreover, it is also possible to redo the height adjustment after the height adjustment with the apparatus of the present invention (see FIG. 13). In order to perform this readjustment, it is necessary to keep the mating screw part rotatable so that the mating screw part is not fixed by the mortar for height adjustment. In addition, it is necessary to cover the screwed portion with the screw portion by the cover means. The fact that re-construction is possible is an advantage of the present invention that is made possible by adopting a method of operating the mating screw from above the upper structure.

  Since the present invention is configured and operates as described above, the height of the upper structure can be adjusted by screw operation from above (outside) the upper structure, and during the adjustment work, Since there is no need to operate the height adjustment nut etc. by entering the underground structure, workability can be improved, and when the screw operation can be performed with the anchor bolt, the height adjustment device The number of components is small. In addition, since the height of the upper structure can be adjusted by operating the screw from above (outside) the upper structure, it is possible to easily perform subsequent readjustment if only the mating screw remains rotatable. .

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is an illustration of an underground structure according to the present invention, 11 is a base, 12 is a lower arm as a base structure, 13 is an insert nut as a threaded portion, and an upper end surface of the base structure 12 Are provided in the vertical direction. The screw part 13 is installed in the frame part of the foundation structure 12 at 120-degree intervals (FIG. 2), and also penetrates below the foundation structure 12.

  The receiving frame as the upper structure 14 is an annular member that is installed above the foundation structure 12 and supports an iron lid (not shown), and is so-called provided on the flange portion at six equal intervals. The position of the anchor hole 15 coincides with the position of the screw portion 13 of the lower structure. The mating screw 16, which is a male screw member that is screwed with the screw portion 13, which is a female screw member, is thus passed through the anchor hole 15. The illustrated mating screw 16 also serves as an anchor bolt that fastens the upper structure 14 and the lower structure 12.

  The mating screw 16 is provided so as to be able to move up and down by screwing with the screw portion 13, but the seat 17 is screwed with the mating screw 16 in order to cause the mating screw 16 to receive the upper structure 14. It has a so-called hollow hole 18 to be inserted, and has a spherical seat 19 shaped into a spherical shape on the lower surface. In order to receive the receiving seat 17 by the spherical seat 19, a disc-shaped seat receiving 20 is welded to an appropriate position of the mating screw 16. Further, at the upper end of the mating screw 16, an engaging mating portion 21 of an engaging portion 31 of the operation member 30 described later is provided.

  The seat receiver 20 of the receiving seat 17 inserted without screwing is not limited to a disc shape. Examples thereof are shown in FIGS. 4 and 5, in which only the pin 22 is press-fitted into the mating screw 16. Further, in FIG. 5, the E-type washer 23 or the snap pin 24 is attached to the mating screw 16 by engagement, and the threaded portion of the male screw member can be used as the attachment portion. In these cases, the seat 17 does not rotate even if the mating screw 16 rotates by contacting the lower surface of the upper structure 14 and moves up and down together with the seat receiver 20 and the like.

  On the other hand, an example of an integral type that moves up and down integrally with the mating screw 16 is shown in FIGS. 6 and 7, and the one in FIG. 6 has a female seat 25 that is screwed to the mating screw 16 and an upper spherical seat 26. And a nut 28 serving as a set screw. In addition, the seat 27 of FIG. 6 is provided with the engaging part 27 with the tool for tightening. In FIG. 7, a receiving seat 27 having a female screw 25 and an upper spherical seat 26 is welded (shown by reference numeral 29) to an appropriate position of the mating screw 16. Therefore, in these examples, when the mating screw 16 is rotated, the seat 27 whose resistance is reduced at the upper spherical seat 26 is rotated and moved up and down.

  The operation member 30 attached to the mating screw 16 from above the upper structure 14 has an engaging portion 31 that can be engaged with the mating mating portion 21 provided at the upper end of the mating screw 16. The illustrated engaging portion 31 is provided at an inner position from an insertion port 32 of a pipe having a thickness capable of inserting the mating screw 16 and contributes to improvement in rigidity of the engaging portion 31 (FIG. 8). . The operation member 30 has a handle 33 at the upper end.

  When the height adjustment of the receiving frame is performed by the underground structure height adjusting device 10 of the present invention thus configured, the foundation structure 12 is appropriately installed, and the mating screw portion 16 is screwed into the screw portion 13. (See FIG. 9). An example having a non-rotating seat 17 having a flaw hole 18 is shown in FIG.

  After roughly adjusting the height, the mating screw portion 16 is passed through the anchor hole 15 of the upper structure 14 so that the upper structure 14 is supported on the seat 17, and then the engaging portion 31 of the operation member 30 is moved. Engage with the mating mating part 21 of the mating screw 16. In this state, the handle 33 is operated in a desired direction to adjust the height. In FIG. 10, the position of the receiving seat 17 is adjusted to be lower than that in FIG. In FIG. 11, the position of the seat 17 is adjusted to be higher than that in FIG. 10. Regardless of which adjustment is performed, the operation member 30 is operated from above the upper structure 14 and the mating screw 16 is rotated. That's it.

  When the height adjustment is finished, the nut 34 is screwed into the mating screw 16 protruding from the flange portion of the upper structure 14 and the mating screw 16 is used as an anchor bolt, and the foundation structure 12 and the upper structure 14 are connected. Conclude. Further, a space 36 between the base structure 12 and the upper structure 14 is filled with a quick-setting mortar or the like as a height adjusting filler 35. When the mortar is dry, the height adjustment is complete. It is the state of FIG.

  In this height adjustment work, it is possible to prevent the mortar from adhering to the screw by covering the mating screw portion exposed in the space 36 with the cover means 27 in advance. It is the state of the left side of FIG. In this case, since the mortar is not attached to the mating bolt 16, the post-operation of the mating bolt 16 becomes possible. That is, the pavement of the road is peeled off, the upper structure 14 is hit and removed from the mortar, the operation member 30 is attached to the mating bolt 16 and operated in the direction of pulling up, and the newly formed space 36 'is filled with mortar. By doing so, re-lifting becomes possible.

  Further, if the mortar 35 can be removed in a state where the upper structure 14 is removed from the mortar, it is possible to adjust the space between the base structure 12 and the mortar 35 again. Therefore, not only the raising but also the adjustment in the direction of decreasing the height is possible, and the height adjustment can be performed by the work from above the upper structure 14 in any construction.

  The present invention has the above-described contents, such as height adjustment of the upper structure in the installation work of the underground structure, correction of the height of the upper structure in the underground structure such as an installed manhole, etc. Can be performed smoothly.

The longitudinal cross-sectional view which shows the application example of the height adjustment apparatus for underground structures which concerns on this invention. FIG. The side view which shows one example of the height adjustment apparatus which concerns on this invention. The side view which shows the example 2 of the relationship between an other party screw and a receiving seat. The side view which shows Example 3 similarly. The side view which shows Example 4 similarly. The side view which shows Example 5 similarly. The figure which shows an example of an operation member. Sectional drawing of the state which made the other thread part screwed in the thread part of a foundation structure. Sectional drawing which shows Example 1 of height adjustment of an upper structure. Sectional drawing which shows Example 2 of height adjustment of an upper structure. Sectional drawing of the state which completed height adjustment. Sectional drawing which shows the example of readjustment of height.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Height adjustment apparatus for underground structures 12 Foundation structure 13 Screw part 14 Upper structure 16 Mating screw 17, 29 Seat 20 Seat receiving 21 Engagement mating part 22 Pin 23 Washer 24 Snap pin 25 Female screw 26 Upper spherical seat 28 Nut 29 Welding 30 Operating member 31 Engaging part 33 Handle 35 Height adjusting filler 36, 36 '

Claims (5)

A device for adjusting the height of an upper structure such as a receiving frame, which is arranged on the foundation structure of an underground structure, and in which the screw part is installed in the vertical direction and the screw part is opposed to the screw part. By mating the screw, the mating screw can be moved up and down, and can be moved up and down with the mating screw, and a receiving seat having a function of receiving the upper structure is provided on the mating screw, and from above the upper structure. A height adjusting device for an underground structure, wherein an operating member is attached to a mating screw and rotated to allow the upper structure to move up and down. The height adjusting device for an underground structure according to claim 1, wherein the screw portion installed in the foundation structure is a bolt, and also serves as an anchor bolt used for fixing the upper structure. 2. The height adjusting device for an underground structure according to claim 1, wherein the receiving seat is inserted so as not to be screwed with the mating screw, and moves up and down together with a seat catch fixedly provided on the mating screw. . The height adjusting device for an underground structure according to claim 1, wherein the receiving seat is provided integrally with a mating screw by a double nut type or welding. In the space between the foundation structure and the upper structure, the mating screw is covered with a cover means to prevent the mating screw from adhering to a filling material such as mortar filled for height adjustment. The height adjusting device for underground structures according to any one of claims 1 to 4.

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