Forced centering device

Abstract

The utility model relates to a forced centering device. The stability of an existing centering device is difficult to guarantee, the universality is poor, the height and levelness are difficult to adjust, and the existing centering device is inconvenient to mount and dismount. The forced centering device comprises a forced centering disc, a threaded fixing seat is arranged in the center of the forced centering disc, a plurality of horizontal limiting holes are formed in the outer wall of the lower portion of the threaded fixing seat, and horizontal limiting rods are arranged in the horizontal limiting holes. A plurality of connecting rods are vertically arranged at the bottom of the forced centering disc, and the connecting rods are vertically connected with the embedded parts through adjusting parts; and a connecting piece is arranged in the threaded fixing seat and is connected with measuring equipment. The support is high in stability and universality, the height and the levelness can be flexibly adjusted, and mounting and dismounting are convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering measurement technical field, concretely relates to a forced centering device. BACKGROUND

[0002] In the precise engineering measurement, because the measurement precision requirement is very high, when using the traditional optical centering method, the influence to the measurement result is bigger, generally through the method of setting forced centering device to reduce the influence of instrument equipment, prism centering error.

[0003] And the stability of the prior art centering device is difficult to guarantee, the universality is poor, the height and the levelness are difficult to adjust, and the installation and dismounting are inconvenient, therefore, an urgent need exists for a forced centering device which can be flexibly adjusted, has strong stability, strong universality and is convenient to install and dismount. SUMMARY

[0004] The utility model discloses a forced centering device to at least solve the problems of poor stability and universality of the prior art centering device, inability to adjust height and levelness and inconvenience in installation and dismounting.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0006] A forced centering device, comprising a forced centering disc;

[0007] The forced centering disc is provided with a threaded fixing seat at the center, a plurality of horizontal limiting holes are arranged on the outer wall of the lower part of the threaded fixing seat, and a horizontal limiting rod is arranged in each horizontal limiting hole.

[0008] A plurality of connecting rods are vertically arranged at the bottom of the forced centering disc, and the connecting rods are vertically connected with embedded parts through adjusting pieces.

[0009] A connecting piece is arranged in the threaded fixing seat, and the connecting piece is connected with a measuring device.

[0010] Further, a plurality of mounting holes are arranged at the bottom of the forced centering disc, and the top end of the connecting rod is arranged in the mounting hole.

[0011] Further, the outer diameter of the bottom end of the threaded fixing seat is larger than that of the top end, and a through hole is arranged in the inside, and an internal thread is arranged in the through hole.

[0012] Further, the connecting rod is in a cylindrical shape, and an external thread is arranged on the outer wall.

[0013] Further, the adjusting piece is a connecting nut, and the outer cross section is in a hexagonal shape, a quadrangular shape or a circular shape.

[0014] Further, the embedded part comprises a straight rod and a bottom rod, and the straight rod and the bottom rod are in L-shaped, inverted T-shaped or cross-shaped structure.

[0015] Further, the straight rod and the bottom rod are in cylindrical shape, and an outer wall of the upper part of the straight rod is provided with external threads.

[0016] Further, the connecting piece comprises a disc, a first connecting column and a second connecting column, the first connecting column and the second connecting column are respectively arranged on the upper and lower sides of the center of the disc, the first connecting column and the second connecting column are in cylindrical shape, and external threads are arranged on the outer walls of the first connecting column and the second connecting column, the cross-sectional area of the first connecting column is smaller than that of the second connecting column, and a plurality of first dismounting holes are arranged on the upper end surface of the disc.

[0017] Further, a protective cap is arranged in the threaded fixing seat, the protective cap comprises a protective cover and a protective column, the protective column is arranged at the center of the bottom of the protective cover, the protective cover and the protective column are in cylindrical shape, and external threads are arranged on the outer wall of the protective column, and a plurality of second dismounting holes are arranged on the top surface of the protective cover.

[0018] Further, a sealing ring is arranged in the threaded fixing seat.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model provides a kind of forced centering device, and various kinds of measuring equipment such as total station, GNSS receiver, precision pedestal can be connected by connecting piece, and it is strong in universality, and the whole forced centering device is stable and does not rotate by horizontal limiting rod, to enhance structural stability, and the utility model structure is simple, and each component can be disassembled, installed arbitrarily, so that it is more convenient to use.

[0021] 2. The utility model not only can realize the forced centering arrangement of measuring equipment, effectively reduce centering error, improve measurement accuracy, but also can adjust the levelness and height of forced centering disc by adjusting piece.

[0022] 3. The utility model can avoid that device inside is destroyed by setting protective cap, and can avoid that device service life is influenced by water inlet by setting sealing ring. DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings of embodiments can be obtained according to these drawings without creating creative labor.

[0024] Figure 1 is an assembly schematic view of various components of the utility model;

[0025] Figure 2 is a schematic view of the embedded part structure;

[0026] Figure 3 is a schematic view of the adjusting part structure;

[0027] Figure 4 is a schematic view of the forced centering disc structure;

[0028] Figure 5 is a schematic view of the threaded fixing seat structure;

[0029] Figure 6 is a schematic view of the connecting part structure;

[0030] Figure 7 is a schematic view of the protective cap structure;

[0031] Figure 8 is a schematic view of the connecting part installed in the threaded fixing seat;

[0032] Figure 9 is a schematic view of the protective cap installed in the threaded fixing seat;

[0033] In the figure, the following are marked:

[0034] 1 - forced centering disc, 11 - mounting hole, 2 - threaded fixing seat, 21 - horizontal limiting hole, 3 - connecting rod, 4 - adjusting part, 5 - embedded part, 51 - straight rod, 52 - bottom rod, 6 - horizontal limiting rod,

[0035] 7 - connecting part, 71 - disc, 72 - first connecting column, 73 - second connecting column, 74 - first dismounting hole,

[0036] 8 - sealing ring,

[0037] 9 - protective cap, 91 - protective cover, 92 - protective column, 93 - second dismounting hole. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the utility model are given in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0039] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] At the same time, in the description of the present invention, the terms "first", "second", etc. are used only to distinguish descriptions and should not be understood as indicating or implying relative importance. Of course, such terms can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described herein.

[0042] Example:

[0043] like Figure 1 As shown, this embodiment provides a forced centering device, including a forced centering disc 1, a threaded fixing seat 2 is provided in the center of the forced centering disc 1, and three connecting rods 3 are vertically provided at the bottom of the forced centering disc 1. In other embodiments, the connecting rods 3 can also be other numbers. The connecting rods 3 are all vertically connected to the embedded parts 5 through the adjusting parts 4. A connecting part 7 is provided in the threaded fixing seat 2, and the connecting part 7 is connected to the measuring equipment.

[0044] Specifically, if Figure 4 As shown, a hole is opened at the center of the forced centering disc 1 for installing the threaded fixing seat 2, and three mounting holes 11 are opened at the bottom of the forced centering disc 1. In other embodiments, the mounting holes 11 can also be other numbers corresponding to the number of connecting rods 3. The mounting holes 11 are all provided with internal threads for installing the connecting rods 3.

[0045] The threaded fixing seat 2 is fixed to the opening of the forced centering disc 1 by threads, in other embodiments, the threaded fixing seat 2 can also be welded to the opening of the forced centering disc 1, and the top of the threaded fixing seat 2 is flush with the top of the forced centering disc 1, the outer diameter of the bottom end of the threaded fixing seat 2 is larger than the top end, and the inside is provided with a through hole, and the through hole is provided with internal threads, the threaded fixing seat 2 is connected with the connecting piece 7 or the protective cap 9 through the through hole, and a sealing ring 8 is arranged in the threaded fixing seat 2 during connection, so that the inside of the device remains dry.

[0046] As shown in Figure 5 The lower outer wall of the threaded fixing seat 2 is provided with four horizontal limiting holes 21 at intervals, in other embodiments, the horizontal limiting hole 21 can also be of other quantities, and the horizontal limiting hole 21 is fixed with a horizontal limiting rod 6, in other embodiments, the horizontal limiting rod 6 can also be welded in the horizontal limiting hole 21, and the horizontal limiting rod 6 is connected with the threaded fixing seat 2 through the horizontal limiting hole 21, so as to ensure that the whole forced centering device is stable and does not rotate.

[0047] The connecting rod 3 is cylindrical, and the outer wall is provided with external threads, the connecting rod 3 is installed in the mounting hole 11 and is screwed with the mounting hole 11, in other embodiments, the mounting hole 11 can also not be provided with internal threads, and the connecting rod 3 and the mounting hole 11 can be directly welded, and the bottom end of the connecting rod 3 is screwed with the adjusting piece 4.

[0048] As shown in Figure 3 The adjusting piece 4 is a connecting nut, and the inside is provided with a through hole with internal threads, in this embodiment, the outer section of the adjusting piece 4 is hexagonal, in other embodiments, the outer section of the adjusting piece 4 can also be quadrangular or circular, and the horizontal degree and height of the forced centering disc 1 are adjusted through the adjusting piece 4.

[0049] As shown in Figure 2 The embedded part 5 includes a straight rod 51 and a bottom rod 52, in this embodiment, the straight rod 51 and the bottom rod 52 are L-shaped structures, in other embodiments, the straight rod 51 and the bottom rod 52 can also be inverted T-shaped or cross-shaped structures.

[0050] The straight rod 51 and the bottom rod 52 are both cylindrical, the straight rod 51 and the bottom rod 52 are connected through an arc-shaped tube, the bottom rod 52 is inwardly arranged, the outer wall of the upper part of the straight rod 51 is provided with external threads, and the top of the straight rod 51 is screwed with the adjusting piece 4.

[0051] As shown in Figure 6As shown, the connecting piece 7 includes a disc 71, a first connecting column 72 and a second connecting column 73, the first connecting column 72 and the second connecting column 73 are integrally arranged on the upper and lower sides of the center of the disc 71 respectively, the first connecting column 72 and the second connecting column 73 are both cylindrical, and the outer wall of each is provided with external threads, the cross-sectional area of the first connecting column 72 is smaller than that of the second connecting column 73, the upper end surface of the disc 71 is provided with two first dismounting holes 74, which are convenient for the installation and dismounting of the connecting piece 7 through specially processed dismounting tools, and the two first dismounting holes 74 are distributed around the bottom of the first connecting column 72. In other embodiments, the first dismounting hole 74 can also be of other quantities.

[0052] The outer threads of the second connecting column 73 match the inner threads of the threaded fixing seat 2, and the outer threads of the first connecting column 72 match the inner threads of the equipment such as the total station, GNSS receiver, prism base, etc.

[0053] The threaded fixing seat 2 is provided with a protective cap 9, as shown in the figure. Figure 7 As shown, the protective cap 9 includes a protective cover 91 and a protective column 92, the protective column 92 is integrally arranged at the bottom center of the protective cover 91, the protective cover 91 and the protective column 92 are both cylindrical, and the outer wall of the protective column 92 is provided with external threads, the top surface of the protective cover 91 is provided with four second dismounting holes 93, which are convenient for the installation and dismounting of the protective cap 9 through specially processed dismounting tools, and in other embodiments, the second dismounting hole 93 can also be of other quantities. After the measurement is completed, the connecting piece 7 is removed, and the protective cap 9 is screwed into the threaded fixing seat 2, so as to avoid the damage of the device.

[0054] The diameter and threads of the protective column 92 are consistent with those of the second connecting column 73, and both can be used with the threaded fixing seat 2, the diameter of the protective cover 91, the diameter of the disc 71, the diameter of the sealing ring 8 and the inner diameter of the top surface of the threaded fixing seat 2 are consistent, and when the protective cap 9 or the connecting piece 7 is used, it can be tightly connected with the threaded fixing seat 2.

[0055] In this embodiment, the sealing ring 8 is made of rubber, and the other components are made of stainless steel, so that the entire device is more easy to preserve for a long time.

[0056] The installation and use process of this embodiment is as follows:

[0057] During installation, the forced centering disc 1 is threadedly connected with the threaded fixing seat 2, and the top is kept flush, the horizontal limiting rod 6 is threadedly connected in the horizontal limiting hole 21 on the outer wall of the lower part of the threaded fixing seat 2, and the connecting rod 3 is threadedly connected in the mounting hole 11 at the bottom of the forced centering disc 1.

[0058] In use, the embedded part 5 is connected with the connecting rod 3 by using the adjusting part 4, and the levelness and height of the forced centering disc 1 are adjusted by rotating the adjusting part 4; after the adjustment, the forced centering disc 1, the threaded fixing seat 2, the connecting rod 3 and the embedded part 5 should form an integral whole, the relative positions of the components should be kept fixed, the device is integrally buried on the observation pier, after the burying, the top surface of the forced centering disc 1 should be kept horizontal with the top surface of the observation pier, after the burying, the sealing ring 8 is embedded in the threaded fixing seat 2, then the specially processed tool is embedded in the second dismounting hole 93 on the top of the protective cover 91, and the installation of the protective cap 9 is completed by rotating, as shown in Figure 9 After the installation of the protective cap 9 is completed, the top surface of the protective cover 91 should be kept horizontal with the top surface of the forced centering disc 1.

[0059] In measurement, the protective cap 9 is screwed out by using the tool, then the tool is embedded in the first dismounting hole 74 of the connecting part 7, and the installation of the connecting part 7 is completed by rotating, as shown in Figure 8 After the installation of the connecting part 7 is completed, the top surface of the disc 71 of the connecting part 7 should be kept horizontal with the top surface of the forced centering disc 1, then the total station or the precise base is connected to the connecting part 7, after the screwing, the device is precisely leveled, and the measurement work can be started.

[0060] After the measurement is completed, the connecting part 7 is screwed out by using the tool, then the protective cap 9 is screwed into the threaded fixing seat 2, and the top surface of the protective cover 91 is kept flush with the top surface of the threaded fixing seat 2.

[0061] The above application of specific examples is used to describe the utility model, which is only used to help understanding the utility model, and does not limit the utility model. According to the idea of the utility model, the skilled in the art of the utility model can make some simple deductions, deformation or substitution.

Claims

1. A forced centering device, characterized in that: The device comprises a forced centering disc (1); The forced centering disc (1) is provided with a threaded fixing seat (2) in the center, a plurality of horizontal limiting holes (21) are arranged on the outer wall of the lower part of the threaded fixing seat (2), and a horizontal limiting rod (6) is arranged in each horizontal limiting hole (21); A plurality of connecting rods (3) are vertically arranged at the bottom of the forced centering disc (1), and the connecting rods (3) are vertically connected with embedded parts (5) through adjusting parts (4); The threaded fixing seat (2) is provided with a connecting part (7), and the connecting part (7) is connected with a measuring device.

2. The forced centering device according to claim 1, wherein: A plurality of mounting holes (11) are arranged at the bottom of the forced centering disc (1), and the top end of the connecting rod (3) is arranged in the mounting hole (11).

3. The forced centering device according to claim 1, wherein: The outer diameter of the bottom end of the threaded fixing seat (2) is larger than that of the top end, and a through hole is arranged in the inside, and an internal thread is arranged in the through hole.

4. The forced centering device according to claim 1, wherein: The connecting rod (3) is cylindrical, and an external thread is arranged on the outer wall.

5. The forced centering device according to claim 1, wherein: The adjusting part (4) is a connecting nut, and the outer cross section is hexagonal, quadrangular or circular.

6. The forced centering device according to claim 1, wherein: The embedded part (5) comprises a straight rod (51) and a bottom rod (52), and the straight rod (51) and the bottom rod (52) are in L-shaped, inverted T-shaped or cross-shaped structure.

7. The forced centering device according to claim 6, wherein: The straight rod (51) and the bottom rod (52) are cylindrical, and an external thread is arranged on the outer wall of the upper part of the straight rod (51).

8. The forced centering device according to claim 1, wherein: The connecting part (7) comprises a disc (71), a first connecting column (72) and a second connecting column (73), the first connecting column (72) and the second connecting column (73) are arranged on the upper and lower sides of the center of the disc (71) respectively, the first connecting column (72) and the second connecting column (73) are cylindrical, and an external thread is arranged on the outer wall, the cross-sectional area of the first connecting column (72) is smaller than that of the second connecting column (73), and a plurality of first dismounting holes (74) are arranged on the upper end surface of the disc (71).

9. The forced centering device according to claim 1, wherein: A protective cap (9) is arranged in the threaded fixing seat (2), the protective cap (9) comprises a protective cover (91) and a protective column (92), the protective column (92) is arranged at the bottom center of the protective cover (91), the protective cover (91) and the protective column (92) are cylindrical, an external thread is arranged on the outer wall of the protective column (92), and a plurality of second dismounting holes (93) are arranged on the top surface of the protective cover (91).

10. The forced centering device according to claim 1, wherein: The threaded fixing base (2) is provided with a sealing ring (8).

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