JP3016130B2 - Support equipment for surveying equipment in a vertical pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting surveying equipment in a vertical pipe used for performing operations such as sequentially connecting a sewer pipe from an opening formed on a side of a vertical pipe constituting a manhole.

[0002]

2. Description of the Related Art Conventionally, for example, when laying sewer pipes, a laser emitter as a surveying instrument has been used so that each sewer pipe is laid in a connected state along a predetermined gradient. For example, as shown in FIG.
Sewer pipe 3 from (vertical pipe) to second manhole 2 (vertical pipe)
When laying in a connected state, the laser light emitting device 4 is installed in the first manhole 1, and the light emitting device 4 emits the laser beam 5 at an angle along the laying gradient.

On the other hand, between the first manhole 1 and the second manhole 2, a floor-attached surface 6 is formed along the slope of the sewage pipe 3 which is excavated and laid by a power shovel or the like (FIG. 10). And FIG. 11). In addition, floor 6
The sand of a certain thickness (usually about 10 cm) is laid on the upper part of the base material to form a sand base surface 7. The sand foundation surface 7 is a surface on which the sewage pipe 3 as a buried pipe is actually laid, and has a gradient along the laying gradient of the sewage pipe 3.

[0004] The formation of the floor surface 6, the formation of the sand foundation surface 7, and the work of laying the sewer pipe 3 (work of laying the central axis of the sewer pipe along the slope) are installed in the first manhole 1. This is performed based on the laser beam 5 emitted from the laser emitter 4. That is, the laser light emitting device 4 is set on a supporting device called a T-bar 8 as shown in FIG. 9 and moves from the opening 9 formed at a predetermined position on the side of the first manhole 1 to a predetermined position on the side of the second manhole. The laser beam 5 is emitted toward the opening 10 to be formed. The laser beam 5 is emitted along the laying gradient of the sewer pipe 3, and an operator applies the laser beam 5 to the target 11 as shown in FIG. Of the target (irradiation point) on the target 11 is measured (measured by a scale or the like).

The T-bar 8 for setting the laser light emitting device 4 in the first manhole 1 is in the form of a strut rod which applies a pressing force to both side walls with both ends abutting against the side walls of the manhole 1. You. That is, the T-bar 8 is provided with an abutting portion 12 which moves forward and backward by adjusting the screwing of the screw at one end. On the other hand, the laser light emitting device 4 is held on a support base 13 which is slid along the longitudinal direction of the T-bar 8, so that the light emitting base point of the laser beam 5 can be adjusted to slide along the longitudinal direction of the T-bar 8. Support base 1
The apparatus 3 also has a mechanism (not shown) for finely adjusting the slide of the laser light emitting device 4 to be held, so that the light emitting base point of the laser beam 5 is finely slid vertically.

[0006]

However, when the laser light emitting device 4 is set on the T bar 8 or the support base 13 in this manner, the longitudinal direction of the T bar 8 and the laying direction of the sewer pipe 3 are orthogonal. In such an adjustment operation, the contact state of the both ends of the T-bar 8 with the side wall must be released and removed from the side wall once. Further, even when the support base 13 is finely slid up and down, the slide area (slide height) for the adjustment is limited, and if the light emitting base point is located at a height position outside the slide area, it is still necessary. The contact state of the T-bar 8 with the side wall must be released, and the T-bar 8 must be reset from the beginning.

On the other hand, a method of setting the laser light emitting device 4 on the inner bottom of the manhole 1 as shown in FIG. In the method shown in FIG. 12, the laser emitter 4 is set on the support base 14 and the support base 14 is directly mounted on the bottom of the manhole 1. An adjusting screw 15 for finely adjusting the height is provided at a lower portion of the support base 14, and the laser beam 5 is adjusted to emit light from the opening 9 along the laying gradient of the sewer pipe 3. Further, in the method shown in FIG. 13, the laser light emitting device 4 is set on the tripod 16 erected on the bottom of the manhole 1, the length of the tripod 16 is adjusted, and the support posture of the tripod 16 is changed. Opening 9
The emission direction of the laser beam 5 from was adjusted. Of these methods, the method shown in FIG. 12 is used when the height position of the opening 9 is at a low position in the manhole 1.
On the other hand, the method shown in FIG. 13 is used when the height of the opening 9 is at a high position in the manhole 1.

However, in the case of the method shown in FIG. 12 or FIG. 13, since the inner bottom portion of the manhole 1 is not always flat, the adjustment operation is difficult, and the laser emitter 4 is easily moved by a slight contact or vibration. There was a similar defect.

[0009]

SUMMARY OF THE INVENTION It is an object of the present invention to reliably and easily set a surveying instrument in a vertical pipe such as a manhole.

[0010]

According to the present invention, a horizontal pipe is connected to an opening formed at a predetermined position on a side of a vertical pipe, or the horizontal pipe is formed at a predetermined position on a side of a vertical pipe. Used when forming a continuous space such as a water channel or a gutter continuous from the opening, and inside the vertical pipe for supporting the surveying instrument in the vertical pipe and measuring the connection area of the horizontal pipe or the formation area of the continuous space by the surveying instrument. In the support device of the surveying instrument in, a base that allows the surveying instrument to be mounted thereon,
At least one pair of support legs, which are swingably supported on the side of the base and extend below the base, and are rotatably supported at the tips of the support legs, and are provided at the corners of the vertical tube bottom or the vertical tube step. A shaft member abutting and supported by the portion, a shaft member supported vertically along the center below the base, and capable of positioning the elevating body at a predetermined height, and a side of the elevating body One end is connected to each of the support legs, and the other end is connected to a predetermined length position of each support leg. By adjusting the height position of the elevating body with respect to the shaft member, each support leg centering on the base is provided. And a connecting member capable of adjusting the leg opening angle.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG. FIGS. 1 and 3 show the inner bottom of the first manhole 1 shown in FIG. 9, where 20 relates to an opening formed in the side of the manhole 1. FIG. 2 shows a state in which the first manhole is deeper than in the case of FIG.
A step 21 is provided at the intermediate height position.

The support device 22 of the surveying instrument (hereinafter simply referred to as the support device 22) is provided with support legs 24 that swing and open and close in the direction of the arrow θ at the left and right positions below the base 23 (see FIG. 1). . The pair of left and right support legs 24 are respectively pin-connected to the lower portion of the base 23, and as shown in FIG. 3, two leg members 25 separated in the width direction are connected to the beam members 26A, 26B, 2B.
6C. That is, each support leg 24
Each leg member 25 is pin-connected to four corners below the substantially square base 23 (see FIG. 6).

A screw shaft 27 extending in the vertical direction is provided at a central position on the lower surface of the base 23, and an elevating body 28 is loosely inserted around the axis of the screw shaft 27. The screw shaft 27 penetrates the center of the base 23 and is screwed into it. The upper end of the screw shaft 27 is located at the center of the upper surface of the base 23. On the upper surface of the base 23, a turning operation part 30 is disposed between the base 23 and the base 23 via a bush 29 (see FIG. 7). The turning operation part 30 is penetrated to the upper side of the base 23. The screw shaft 27 is screwed. A lever 31 is provided on the rotation operation unit 30, and the rotation operation unit 30 can be rotated with respect to the base 23 by rotating the lever 31 in the direction of arrow R. As a result, the screw shaft 27 is
Can be screwed, and the screw shaft 27 can be slid vertically with respect to the base 23.

At the front position of the screw shaft 27,
A key groove 32 extending in the longitudinal direction extends, while a key 33 fitted in the key groove 32 is supported by the elevating body 28 (see FIG. 4). As a result, the elevating body 28 loosely inserted into the screw shaft 27 is slid up and down while being guided by the key groove 32 along the screw shaft 27 (see FIG. 4). A nut 34 is screwed into the screw shaft 27 at a position above the elevating body 28. The nut 34 is provided with a handle 35.
Is rotated to regulate the slide end above the elevating body 28 on which the screw shaft 27 is slid. A nut 34 is provided above the elevating body 28.
And the bush 36 contacting with the nut 3
The nut 34 abuts the bush 36 by screwing down the screw 4 to move the lifting member 28 downward. As shown in FIG.
Is supported, and the elevating body 28 slid up and down along the screw shaft 27 by screwing in the fastening direction of the screw 37 can be positioned at a predetermined height position. Further, a thumb screw 38 is also supported by the nut 34, and the screw 3
The nut 34, which is screwed up and down along the screw shaft 27 by the screwing in the fastening direction of 8, can be positioned at a predetermined height position.

Brackets are provided on both sides of the front surface of the elevating body 28. The brackets have connecting rods 39A, 39B.
One end of the (connecting member) is connected by a lever pin 40. On the other hand, one of the beam members 26B disposed between the leg members 25 constituting the support legs 24 has the connecting rods 39A,
The other end of 9B is loosely supported (see FIGS. 3 and 6). As a result, by moving the elevating body 28 up and down along the screw shaft 27, each support leg 24 swings and opens and closes in the θ direction. The connecting rod 39B on the front right side of the connecting rods 39A and 39B supports an adjusting screw 41 for finely adjusting the length of the rod 39B. This adjusting screw is disposed at an intermediate length position of the rod 39B, and A male screw portion, which is a reverse screw, is screwed into each of the divided rod portions.

As shown in FIG. 4 or FIG. 6, each support leg 24 has a leg member 25 on the tip end side of the beam member 26B.
It can be expanded and contracted in the direction. That is, the tube material (inner tube material) constituting the distal end side of the leg material 25 is structured to be inserted into the tube material (outer tube material) constituting the base end side (see FIG. 6), and a predetermined length is set in the longitudinal direction of the outer tube material. The fitting hole 42 has a pitch P,
On the other hand, on the outer side of the inner pipe material, the fitting convex portion 4 is provided with a predetermined pitch P.
3 is formed. The fitting projection 43 can be immersed from the inner tube material surface by the action of a spring (not shown). By fitting these fitting projection 43 and the fitting hole 42, the distal end side of the leg material 25 is elongated with a predetermined pitch P. It can be adjusted (see FIG. 6). The support leg 24 whose length has been adjusted in this manner is a leg material 25.
By tightening the thumbscrews 44 provided in the lower part of the outer tube material, it is possible to position at the length adjustment position.

The tip of each leg 25 (the tip of the inner tube) constituting the support leg 24 is provided in the direction of arrow B in FIG. 4 (see FIG. 4).
Is supported. Corner body 45
Is pin-coupled to the leg material 25, and by sliding the position of the pin coupled to the long hole portion continuous with the pin hole,
The rotation position in the direction of arrow B can be determined. The outer shape of the corner body 45 is set to an angle of 90 degrees, and can be brought into contact with and supported by a corner (a portion between a side surface and a bottom surface) of the inner bottom of the manhole 1 as shown in FIG. In addition, the corner body 45 can be brought into contact with and supported on the stepped portion 21 where two vertical pipe members overlap as in the manhole of FIG.

At the upper end of the screw shaft 27 located at the center on the upper surface of the base 23, a camera platform 46 is supported (see FIG. 7). The camera platform 46 includes a cylindrical body 47 having an internal thread portion (not shown) screwed to the screw shaft 27 at a lower portion. The camera platform 46 allows a support plate 48 to be engaged in the direction of the arrow (see FIG. 7), and the laser emitter 4 as a surveying instrument is supported on the support plate 48. That is, the laser light emitting device 4 is
And is fixed by a thumbscrew 49.
Further, a support plate 48 supporting the laser light emitting device 4
Is engaged with and supported by a concave portion on the upper surface of the camera platform 46, and a thumb screw 50
It is fixed by.

In this manner, the laser light emitting device 4 is mounted on the screw shaft 27 on the base 23, and the laser beam 5 can be emitted from the opening 20, for example, as shown in FIG. As a result, the beam 5 is emitted toward the laying area of the horizontal pipe connected to the opening 20 or the forming area (continuous space) such as a water channel and a side groove formed continuously with the opening 20, for example, as shown in FIG. Can be used for forming a floor surface 6 and a sand base surface 7 as shown in FIG.

On the other hand, at the lower end of the screw shaft 27 extending vertically below the base 23, a support block 51 is provided.
The mounting block 52 that can support the laser light emitting device 4 as a surveying instrument is supported on the support block 51 (see FIGS. 1 and 8). The mounting box 52 is penetrated in the direction of the arrow X, so that the laser light emitting device 4 supported by the support plate 48 can be mounted inside. An adjusting screw 53 is supported on the support block 51 on the upper part of the mounting box 52.
The mounting box 52 is screw-adjusted with the adjusting screw 53,
An arrow Y direction with respect to the support block 51 (Y in FIGS. 1 and 2)
Direction) can be finely adjusted. As a result, the mounting box 5
The laser light emitting device 4 supported in the light emitting device 2 can be finely adjusted in the Y direction, so that the light emitting base point of the beam 5 from the light emitting device 4 can be adjusted in the Y direction.

Further, the mounting box 52 can be moved up and down by rotating the rotating operation portion 30 disposed on the upper surface of the base 23 by rotating the lever 31 portion. That is, by rotating the lever 31 in the R direction as shown in FIG. 7, the screw shaft 27 moves up and down with respect to the base 23, whereby the mounting box supported by the lower end of the screw shaft 27 is moved. 52 will be adjusted vertically. As a result, the position of the laser light emitting device 4 supported in the mounting box 52 can be adjusted up and down, so that the light emitting base point of the beam 5 from the light emitting device 4 is set to Z in FIG.
Direction can be adjusted.

According to the support device 22 of the surveying instrument formed in this manner, for example, as shown in FIG. 1, a corner is formed at a corner (or a step 21 as shown in FIG. 2) at the bottom of the manhole 1 as a vertical pipe. The support leg 24 is swung in the opening direction so as to contact and support the body 45, and in this state, the nut 34 is screwed downward along the screw shaft 27, and the nut 34 is attached to the bush 36 of the elevating body 28. 34 is brought into contact. Then, the abutting state of the corner body 45 to the corner of the inner bottom of the manhole 1 is maintained by the connection of the elevating body 28 and the support leg 24 via the connecting rods 39A and 39B.

In this state, for example, the light emitting base point of the laser light emitting device 4 supported on the camera platform 46 is connected to the connecting rod 39B.
Of the screw shaft 27 with respect to the base 23 by the adjustment of the adjustment screw 41 provided on the base member, or the mutual rotation of the lever 31 of the rotary operation part 30 and the handle 35 of the nut 34, etc. Adjustable. For example, by pulling out the lever pins 40 of the connecting rods 39A and 39B connected to the elevating body 28, the set state (connected state) of the support device 22 shown in FIG. 1 can be easily released.
At this time, one end of each of the connecting rods 39A and 39B is
4 can be temporarily fixed (fixed) to the pin holes formed in the leg members 25 by using the lever pins 40, and can be brought into the folded storage state shown in FIG. In this case, the fixed state of the thumb screw 37 to the screw shaft 27 can be released as shown in FIG. In this way, the next day, for example, even when it is desired to set the support device 22 in the same manhole 1 as shown in FIG. 1, the lifting body 28 is brought into contact with the nut 34 based on the fastening position of the nut 34 to the screw shaft 27. Just by connecting the connecting rods 39A and 39B with the lever pins 40, resetting can be easily performed.

On the other hand, as shown in FIG. 8, even when the laser light emitting device 4 is set inside the mounting box 52, the base 31 is similarly rotated by the mutual rotation of the lever 31 of the rotary operation unit 30 and the handle 35 of the nut 34. The height of the mounting box 52 can be adjusted, and the mounting box 52 can be slid in the Y direction by rotating the adjusting screw 53. In this way, it is possible to secure an accurate base point of the surveying instrument using the corners and steps at the inner bottom of the manhole 1, and it is possible to reliably and easily set the surveying instrument in a vertical pipe such as a manhole. Become.

Further, the tip of the support leg 24 is adjusted in length as shown in FIG. 4 or FIG. 6, the laser light emitting device 4 is set in the mounting box 52 as described above, and For example, the support device 22 can easily adjust the height of the light emitting base point of the laser beam 5 based on the height position of the opening at the side position of the manhole 1 for setting, for example, for surveying in any vertical pipe. It will be able to respond.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As a surveying instrument, a supporting device 22 can support a light receiving device, an electronic target, a transit, etc. in addition to a laser emitting device.

In the above embodiment, the screw shaft 27 is used as the shaft member.
The lifting body may be moved up and down on the shaft on the round bar to be positioned at a predetermined height position. Further, in the above embodiment, the upper end of the screw shaft 27 is located on the base 23. However, for example, another height adjustment mechanism is provided on the base 23, and the camera platform 46 is supported on the top. May be.

Further, at the lower end of the screw shaft 27, as shown in the above embodiment, it is not always necessary to provide a support for a box-shaped surveying instrument. Is also good.

Further, in the above-described embodiment, the pair of left and right support legs 24 is used, and each of the support legs 24 has two leg members 25. However, each support leg is a single leg member having a certain width. It may be. Further, the number of the supporting legs may be three or four independent, and the number of connecting members connected to the elevating body may be increased correspondingly. The corner body 45 may be made of a rubber material or another elastic material so as to be able to absorb a certain degree of curvature of the inner portion of the vertical pipe, and may have a flat fan shape in accordance with the curvature of the inner portion of the manhole.

As described above, according to the present invention, there is an effect that setting of a surveying instrument in a vertical pipe such as a manhole can be performed reliably and easily.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a state in which a support device of a surveying instrument according to an embodiment of the present invention is installed at the bottom of a manhole as a vertical pipe.

FIG. 2 is a cross-sectional view showing a state where the supporting device is supported on a stepped portion at an intermediate depth position of a manhole.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view showing a state where one end side of a support leg is extended according to a side surface of the support device.

FIG. 5 is a front view showing a state in which a support leg is folded on the front of the support device.

FIG. 6 is a plan view of the support device.

FIG. 7 is a perspective view showing a state in which a laser light emitting device as a surveying instrument is supported on an upper portion of the supporting device.

FIG. 8 is a perspective view showing a state in which a laser emitter as a surveying instrument is supported inside a support box supported on the lower end of the screw shaft.

FIG. 9 is a perspective view showing a conventional sewer pipe laying process.

FIG. 10 is a sectional view of the same.

FIG. 11 is a cross-sectional view illustrating a process of setting a surveying instrument in a first manhole and laying a sewer pipe.

FIG. 12 is a cross-sectional view showing another process of installing a laser light emitting device as a surveying instrument at the inner bottom of a manhole and performing surveying.

FIG. 13 is a cross-sectional view showing a process of setting a laser light emitting device as a surveying instrument on a tripod and performing surveying.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st manhole 2 2nd manhole 3 Sewer pipe 4 Laser light emitting device (surveying instrument) 5 Laser beam 6 Floor surface 7 Sand base surface 8 T-bar 9, 10, 20 Opening 11 Target 12 Contact part 13, 14, Support base Table 15 Adjusting screw 16 Tripod 21 Step 22 Supporting device for surveying equipment 23 Base 24 Supporting leg 25 Leg 26A, 26B, 26C Beam 27 Screw shaft 28 Elevator 29, 36 Bush 30 Rotating operation unit 31 Lever 32 Key groove 33 Key 34 Nut 35 Handle 37, 38, 44, 49, 50 Thumb screw 39A, 39B Connecting rod (connecting member) 40 Lever pin 41, 53 Adjusting screw 42 Fitting hole 43 Fitting projection 45 Corner body 46 Head platform 47 cylinder Shape 48 Support plate 51 Support block 52 Mounting box

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 61-23598 (JP, U) Japanese Utility Model Sho 62-63406 (JP, U) Japanese Utility Model Hei 3-80316 (JP, U) (58) Field (Int. Cl. ⁷ , DB name) G01C 15/00-15/14

Claims (6)

(57) [Claims] 1. A horizontal pipe is connected to an opening formed at a predetermined position on the side of a vertical pipe, or a continuous space such as a water channel or a side groove is formed from an opening formed at a predetermined position on the side of the vertical pipe. The surveying instrument is supported in the vertical pipe, and the surveying instrument is installed in the vertical pipe supporting device in the vertical pipe for measuring the connection area of the horizontal pipe or the formation area of the continuous space by the surveying instrument. A base that can be mounted, at least a pair of support legs that are swingably supported on the side of the base, and extend below the base, and that are rotatably supported at the ends of the support legs, A corner body that abuts and is supported at the corner of the bottom of the pipe or the vertical pipe step, and is supported vertically along the center below the base and can position the elevating body at a predetermined height. One end is connected to each of the shaft member and the side of the lifting body. The other end is connected to a predetermined length position of each support leg, and by adjusting the height position of the elevating body with respect to the shaft member, the opening angle of each support leg centering on the base can be adjusted. A supporting member for surveying equipment in a vertical pipe comprising: 2. The surveying instrument support device in a vertical pipe according to claim 1, further comprising a support supported by a lower end of the shaft member and having a mounting portion to which the surveying instrument can be attached. 3. The support device for surveying instruments in a vertical pipe according to claim 1, wherein the length of the connecting member is adjustable. 4. The nut according to claim 1, wherein the shaft member is a screw shaft, while the lifting member is loosely inserted into the screw shaft, is screwed to the screw shaft, and is screwed to the upper portion of the lifting member. A support device for surveying equipment in a vertical pipe that can be moved up and down along a screw shaft by adjustment. 5. The support device for surveying equipment in a vertical pipe according to claim 1, wherein a distal end side of a connecting portion of each of the supporting legs with a connecting member is adjustable in length. 6. The connecting member according to claim 4, wherein a connecting state between the lifting member and the connecting member can be released, and a connecting part of each connecting member with the lifting member is fixed to a corresponding supporting leg in the disconnected state. A support device for surveying equipment in a vertical pipe that can be stored.