CN218443591U

CN218443591U - Span-middle distribution detection device for bolt holes of flange pipe fittings

Info

Publication number: CN218443591U
Application number: CN202221705860.1U
Authority: CN
Inventors: 倪奉尧; 曹敬凯; 卓昌著; 邢洪帅; 徐海金; 刘伯胜
Original assignee: Shandong Donghong Pipe Industry Co Ltd
Current assignee: Shandong Donghong Pipe Industry Co Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-02-03
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a flange pipe fitting bolt hole is distribution detection device in striding relates to the pipe fitting processing field, has solved the problem that current detection device precision is poor, inefficiency, has improved work efficiency, and concrete scheme is as follows: the reciprocating mechanism comprises a crank and two sliding rods, the crank is vertically arranged and rotatably arranged in the shell, the crank is driven by a crank handle extending out of the shell, the two sliding rods are horizontally arranged on the left side and the right side of the crank oppositely, the upper end of the crank is hinged with the right sliding rod through a connecting rod, the lower end of the crank is hinged with the left sliding rod through a connecting rod, the sliding rods penetrate through a guide rail fixedly arranged in the shell and extend out of the shell, and the end parts of the sliding rods extending out of the shell are in threaded fit with a positioning block; the indicating mechanism is composed of a rotating rod which is rotatably arranged on the outer surface of the shell, and a heavy hammer and a pointer which are respectively and fixedly arranged at the two ends of the rotating rod, and the pointer is matched with the dial on the outer surface of the shell.

Description

Span-middle distribution detection device for bolt holes of flange pipe fittings

Technical Field

The utility model belongs to the technical field of the pipe fitting processing technique and specifically relates to a distribution detection device in flange pipe fitting bolt hole strides.

Background

The flange connection mode is one of the common connection modes of the steel pipelines with the advantages that the flange connection mode is not limited by factors such as environment, weather and personnel culture degree, personnel can be used for post operation after transient training, the operation is convenient and fast, and the like.

Because the bolt holes of the valve and the flange are arranged in a span-center manner, in order to ensure the normal connection of the pipe, the pipe fitting and the valve, the relevant positions of the bolt holes of the flange in the pipe fitting are clearly specified in various standards, although the standards specify that the bolt holes are distributed in a span-center manner, the standards do not specify how to detect whether the bolt holes are distributed in a span-center manner, and in the batch production, when the bolt holes are not distributed in a span-center manner, the situations of deflection and abnormal connection are easily caused during the on-site valve connection, and the normal use of the pipeline is not met, so that the economic loss is caused.

The inventors found that most of conventional flange bolt hole span distribution detection devices connect two bolt holes provided opposite to each other by a link, and detect the bolt holes by placing a bubble level gauge or the like on the link, and although the levelness and the direction of deviation can be detected, the angle of deviation cannot be detected specifically, and the adjustment requires experience of an operator, which is poor in accuracy and efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a distribution detection device strides in flange pipe fitting bolt hole has set up reciprocating mechanism for the slide bar that two levels set up can advance and retreat in step, is used for the bolt hole location of unidimensional flange, and accessible indicating mechanism detects the bolt hole and whether strides well distribution, has solved current detection device precision poor, the problem of inefficiency.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, the embodiment of the utility model provides a detection device is distributed to flange pipe fitting bolt hole span midrange, including casing, reciprocating mechanism and indicating mechanism, reciprocating mechanism comprises crank, slide bar, the crank is vertical to be set up and rotates and sets up inside the casing, the crank is through the crank drive that stretches out the casing, the slide bar is equipped with two, and two slide bar levels are relative to be set up in the left and right sides of crank, and the upper end of crank is articulated with the right side slide bar through the connecting rod, and the lower extreme of crank is articulated with the left side slide bar through the connecting rod, the slide bar passes the guide rail of fixed setting in the casing and stretches out the casing, and the tip that the slide bar stretches out the casing is with locating piece screw-thread fit;

the indicating mechanism is composed of a rotating rod which is rotatably arranged on the outer surface of the shell, and a heavy hammer and a pointer which are respectively and fixedly arranged at the two ends of the rotating rod, and the pointer is matched with the dial on the outer surface of the shell.

As a further realization mode, the crank is hinged with a connecting rod, and the connecting rod is hinged with a sliding rod connected with the connecting rod.

As a further implementation mode, the guide rails on the two sides of the crank are located on the same horizontal plane, and the two guide rails are coaxially arranged.

As a further implementation, the connecting rods have the same length and are parallel to each other.

As a further implementation, the outer diameter of the slide bar is the same as the inner diameter of the guide rail.

As a further implementation manner, a threaded hole is formed in one end, extending out of the shell, of the sliding rod, the axis of the threaded hole is perpendicular to the axis of the sliding rod, and the positioning hole is in threaded fit with the threaded hole.

As a further implementation, the rotating rod is rotatably arranged on the outer surface right in front of the shell, and the rotating rod is coaxially arranged with the crank.

As a further implementation manner, the dial is fixedly arranged on the outer surface of the shell, the dial is composed of a plurality of scale marks, and the number of degrees between every two adjacent scale marks is 1 °.

As a further implementation mode, the reciprocating mechanism is composed of a gear and two racks, the gear is rotatably arranged at the center inside the shell, the two racks are horizontally and oppositely arranged on the upper side and the lower side of the gear and are both meshed with the gear, and the gear is driven by a crank extending out of the shell.

As a further implementation manner, the rack above the gear extends out from the right side of the shell, the rack below the gear extends out from the left side of the shell, a horizontally arranged slide rod is fixedly arranged at the end part of each rack extending out of the shell, and the end part of each slide rod is in threaded fit with the positioning block.

Above-mentioned the utility model has the advantages as follows:

1) The utility model discloses set up reciprocating mechanism, the slide bar that can drive two relative settings moves towards opposite direction in step, and the detection demand of adaptable not unidimensional flange bolt hole has just set up indicating mechanism on the shell, can detect out the direction and the angle that the casing deflected, and then detects out deviation direction and the angle that the flange bolt hole strides well and distributes, has improved detection precision and efficiency greatly.

2) The utility model discloses the guide rail of crank both sides is in same horizontal plane, coaxial setting between two guide rails to make the slide bar levelness of the crank left and right sides the same, and the internal diameter of guide rail is the same with the external diameter of slide bar, has guaranteed the accuracy that detects greatly.

3) The utility model discloses the length of two connecting rods is the same and be parallel to each other to when crankshaft rotation, the accessible connecting rod drives the slide bar of the crank left and right sides outwards or the inward movement simultaneously, makes the moving direction of two slide bars opposite, displacement same, has effectively guaranteed detection device's detection accuracy.

4) The utility model discloses a locating piece and bolt hole joint realize the location and the auto-lock of device, improved the installation rate and the measuring speed of device greatly, effectively improved detection achievement's efficiency.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a front view structural schematic diagram (perspective) of a detection device for detecting the span-wise distribution of bolt holes of a flanged pipe according to one or more embodiments of the present invention;

fig. 2 is a front view structural schematic diagram of a housing according to one or more embodiments of the present invention;

fig. 3 is a schematic structural view of a reciprocating mechanism according to one or more embodiments of the present invention;

FIG. 4 is an enlarged schematic view of the dial of the present invention according to one or more embodiments;

FIG. 5 is a schematic diagram of another reciprocating mechanism according to one or more embodiments of the present invention;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

wherein, 1, a crank; 2. a connecting rod; 3. a crank; 4. a guide rail; 5. a slide bar; 6. a threaded hole; 7. a housing; 8. a weight; 9. a rotating rod; 10. a dial scale; 11. a pointer; 12. a gear; 13. a rack.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Just as the background art introduces, current flange bolt hole strides well distribution detection device utilizes the bolt hole connection of connecting rod with two relative settings to place bubble spirit level etc. on the connecting rod and detect, though can detect the levelness in order to deflect the direction, nevertheless unable specific detection goes out deflection angle, adjusts up the experience that needs to rely on operating personnel, and the problem of poor, the inefficiency of precision, for solving above-mentioned problem, the utility model provides a flange pipe fitting bolt hole strides well distribution detection device.

Example 1

The utility model discloses an among the typical embodiment, as shown in fig. 1-4, provide a flange pipe fitting bolt hole strides well distribution detection device, include, casing 7, set up the reciprocating mechanism in casing 7 and set up the indicating mechanism outside casing 7.

The reciprocating mechanism is arranged in the housing 7, two ends of the reciprocating mechanism extend out of the housing 7, and as shown in fig. 1, the reciprocating mechanism is composed of a crank 1, a connecting rod 2, a crank 3, a guide rail 4, a slide rod 5 and a positioning block.

Crank 1 rotates the central point department of setting in casing 7 inside, and the vertical setting of crank 1, crank 1 and casing 7 coaxial setting, and the upper and lower both ends of crank 1 are equipped with a connecting hole respectively, and the connecting hole at both ends sets up relatively based on crank 1's center about crank 1, mainly used connecting rod 2's installation.

The middle position of the crank 1 is fixedly provided with a crank 3, one end of the crank 3 is fixedly connected with the crank 1, the other end of the crank extends out of the shell 7, and an operator can drive the crank 1 to rotate through the crank 3 and further drive the connecting rod 2 to move.

It can be understood that the crank 1 and the housing 7 may be connected by a rotating shaft, or a shaft and a bearing may be used, and the specific arrangement may be determined according to actual design requirements, and no limitation is made herein as long as the crank 1 is fixed in position in the housing 7 and can rotate relative to the housing 7.

Guide rail 4 is equipped with two, and two guide rail 4 set up in the left and right sides of crank 1 relatively, and guide rail 4 is hollow tubular structure, and guide rail 4 is fixed to be set up on casing 7, and guide rail 4's one end is located casing 7's inside, and casing 7 is stretched out to the other end, and mainly used avoids slide bar 5 reciprocating motion to the skew to the direction of slide bar 5 appears to guarantee that the bolt hole strides the accuracy of well detection.

The guide rails 4 are horizontally arranged, the guide rails 4 on the two sides of the crank 1 are positioned on the same horizontal plane, and the two guide rails 4 are coaxially arranged, so that the levelness of the sliding rods 5 on the left side and the right side of the crank 1 is the same, and the detection accuracy is further ensured.

In order to avoid that the position remains unchanged during the movement of the slide bar 5, the inner diameter of the guide rail 4 is the same as the outer diameter of the slide bar 5.

Connecting holes at the upper end and the lower end of the crank 1 are respectively connected with a connecting rod 2, one end of each connecting rod 2 is hinged with the corresponding connecting hole in a pin shaft connection mode and the like, and the connecting rod 2 connected with the connecting hole at the upper end of the crank 1 is hinged with a sliding rod 5 positioned on the right side of the crank 1; the connecting rod 2 connected with the connecting hole at the lower end of the crank 1 is hinged with a slide rod 5 positioned at the left side of the crank 1.

The two connecting rods 2 are the same in length and are parallel to each other, so that when the crankshaft 1 rotates, the connecting rods 2 can drive the sliding rods 5 on the left side and the right side of the crankshaft 1 to move outwards or inwards at the same time, and the two sliding rods 5 are opposite in moving direction and the same in moving distance.

The end part of the slide rod 5 far away from the connecting rod 2 (namely, the end of the slide rod 5 extending out of the shell 7) is provided with a threaded hole 6, and the axis of the threaded hole 6 is vertical to the axis of the slide rod 5 and can be in threaded fit with the positioning block so as to fixedly arrange the positioning block at the end part of the slide rod 5.

The locating piece mainly used and bolt hole joint are in order to carry on spacingly to slide bar 5, and it can be understood that the size of locating piece can be selected according to the size of actual bolt hole, and specific structural style, size do not do too much restriction here, as long as can carry out the joint with the bolt hole can.

As shown in fig. 2, the indicating mechanism is rotatably disposed on the outer surface of the housing 7, specifically on the outer surface right in front of the housing 7, and the indicating mechanism is composed of a weight 8, a rotating rod 9, a dial 10 and a pointer 11, wherein the weight 8 is fixedly disposed at one end of the rotating rod 9, the pointer 11 is rotatably disposed at the other end of the rotating rod 9, and the rotating rod 9 is rotatably connected to the housing 7 through a rotating shaft;

the dial 10 is fixedly arranged on the outer surface of the shell 7, the dial 10 is composed of a plurality of scale marks, as shown in fig. 4, the degrees between the adjacent scale marks are 1 degree, the left and right sides are allowed to deviate from 1 degree, and whether bolt holes are distributed in a cross-center mode can be judged by observing the directions of arrows.

Wherein, bull stick 9 and crank 1 coaxial setting to it is the same to guarantee that the distance of bull stick 9 left and right sides to the bolt hole, thereby when the bolt hole not strided the setting, the accurate judgement of accessible pointer 11 is deflected direction and deflection angle.

It can be understood that, in order to facilitate the replacement of the sliding rod 5, so as to ensure that the detection device can meet the detection requirements of flanges with different sizes, the housing 7 is designed to be a split structure, namely, the split structure is divided into a first housing unit and a second housing unit, the second housing unit can be buckled on the first housing unit, the reciprocating mechanism is arranged inside the first housing unit, and the indicating mechanism is arranged on the outer surface of the second housing unit.

The specific working principle is as follows:

after the pipe fitting flange is spot-welded, the detection device is taken out, the central line of the shell 7 is overlapped with the central line of the flange, the crank 3 is rotated, the slide rod 5 is extended, the matched positioning block is selected, the positioning block is arranged at the end part of the slide rod 5 extending out of the shell 7, the crank 3 is rotated to adjust the slide rod 5 to the required length, and the positioning block is inserted into the bolt hole to complete self-locking;

and (3) installing the observation indicating mechanism after standing, observing whether the pointer 11 is centered (within an allowable deflection range), and adjusting the flange and welding according to the indicating condition.

Example 2

In another exemplary embodiment of the present invention, as shown in fig. 5, a detecting device for detecting the span-middle distribution of bolt holes of a flange pipe is provided, which comprises a housing 7, a reciprocating mechanism disposed in the housing 7, and an indicating mechanism disposed outside the housing 7.

The housing 7 and the indicating mechanism have the same structure as that described in embodiment 1, and the reciprocating mechanism in this embodiment is composed of a crank 3, a sliding rod 5, a gear 12 and a rack 13, wherein the gear 12 is rotatably disposed inside the housing 7, the crank 3 is fixedly disposed on the gear 12 and extends out of the housing 7, and the gear 12 can be driven to rotate by the crank 3.

The racks 13 are two, the two racks 13 are oppositely arranged on the upper side and the lower side of the gear 12 and are all meshed with the gear 12, the two racks 13 are horizontally arranged, one end of the rack 13 above the gear 12 extends out of the right side of the shell 7, one end of the rack 13 below the gear 12 extends out of the left side of the shell 7, and when the gear 12 rotates, the two racks 13 can be driven to synchronously move towards opposite directions.

It should be noted that the pitch of the two racks 13 is the same to ensure that the moving distance of the two racks 13 is the same when moving synchronously.

The end part of each rack 13 positioned outside the shell 7 is fixedly provided with a sliding rod 5, and the sliding rod 5 is provided with a threaded hole 6 for installing a positioning block.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for span-center distribution of bolt holes of flanged pipe fittings is characterized by comprising a shell, a reciprocating mechanism and an indicating mechanism, wherein the reciprocating mechanism consists of a crank and two slide bars, the crank is vertically arranged and rotatably arranged in the shell, the crank is driven by a crank extending out of the shell, the two slide bars are horizontally and oppositely arranged on the left side and the right side of the crank, the upper end of the crank is hinged with the right slide bar through a connecting rod, the lower end of the crank is hinged with the left slide bar through a connecting rod, the slide bars penetrate through a guide rail fixedly arranged in the shell and extend out of the shell, and the end parts of the slide bars extending out of the shell are in threaded fit with a positioning block;

2. The detection device for detecting the span-middle distribution of the bolt holes of the flange pipes according to claim 1, wherein the crank is hinged to a connecting rod, and the connecting rod is hinged to a sliding rod connected with the connecting rod.

3. The detection device for detecting the span-middle distribution of the bolt holes of the flange pipes according to claim 1, wherein the guide rails on two sides of the crank are positioned on the same horizontal plane and are coaxially arranged.

4. The device for detecting the span-center distribution of the bolt holes of the flange pipes according to claim 1, wherein the connecting rods are identical in length and parallel to each other.

5. The detection device for detecting the span-center distribution of the bolt holes of the flange pipes according to claim 1, wherein the outer diameter of the slide rod is the same as the inner diameter of the guide rail.

6. The detection device for detecting the span-center distribution of the bolt holes of the flanged pipe fitting according to claim 1, wherein a threaded hole is formed in one end of the sliding rod, which extends out of the shell, the axis of the threaded hole is perpendicular to the axis of the sliding rod, and the positioning block is in threaded fit with the threaded hole.

7. The device for detecting the span-center distribution of the bolt holes of the flange pipes according to claim 1, wherein the rotating rod is rotatably arranged on the outer surface right in front of the shell, and the rotating rod is coaxially arranged with the crank.

8. A span-wise distribution detection device for bolt holes of flange pipes according to claim 1, wherein the dial is fixedly arranged on the outer surface of the shell and is composed of a plurality of scale marks, and the number of degrees between every two adjacent scale marks is 1 degree.

9. The detection device for detecting the span-middle distribution of the bolt holes of the flange pipes according to claim 1, wherein the reciprocating mechanism is composed of a gear and two racks, the gear is rotatably arranged at the central position inside the shell, the two racks are horizontally arranged on the upper side and the lower side of the gear in an opposite mode and are meshed with the gear, and the gear is driven by a crank extending out of the shell.

10. The detection device for detecting the span-middle distribution of the bolt holes of the flanged pipe fitting according to claim 9, wherein the rack above the gear extends from the right side of the housing, the rack below the gear extends from the left side of the housing, a horizontally arranged slide rod is fixedly arranged at the end of each rack extending out of the housing, and the end of each slide rod is in threaded fit with the positioning block.