CN215984347U - Elbow measuring tool - Google Patents

Abstract

The utility model aims to provide an elbow measuring tool to solve the technical problem that an elbow measuring result is inaccurate in the prior art. The elbow measuring tool comprises an angle scale, and the angle scale is provided with radially extending scale marks. The elbow measuring tool also comprises two measuring scales, at least one of the two measuring scales is rotatably assembled on the angle scale around the circle center of the angle scale, and the two measuring scales are provided with inner sides used for cooperatively reading the angle of the elbow; the dipperstick includes that the components of a whole that can function independently is adorned at least two scale square poles together admittedly, and the inboard parallel and level of each scale square pole of same dipperstick arranges and is in coplanar. After the inboard of each scale square pole is arranged neatly, keep away from the inboard elbow terminal surface of pasting of scale square pole of angle scale and carry out the reading, the scale square pole that is close to the angle scale and the scale mark cooperation reading on the angle scale guarantee that elbow terminal surface reading position and angle scale go up scale mark and the angle scale centre of a circle all lie in the plane of the inboard parallel and level of scale square pole, make the measuring result accurate.

Description

Elbow measuring tool

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to an elbow measuring tool.

Background

With the establishment of national pipe networks, a plurality of large-caliber oil and gas pipelines are under construction or about to be constructed. In the construction, no matter buried pipeline or overhead pipe gallery pipeline, all need use a large amount of elbows of heating over a slow fire, because pipeline erection's operational environment lays the installation pipeline in the high altitude of heavy-calibre, consequently the specification requirement of required elbow of heating over a slow fire is extremely strict, before the elbow installation of heating over a slow fire, need measure angle, unilateral length, data such as two port slope deviations usually, it is a problem that must be preferred to solve whether inspection elbow accords with specification requirement before the installation.

Therefore, the chinese utility model patent application with the publication number CN206469815U discloses an elbow measuring tape for measuring the angle and the inner and outer diameters of the openings at the two ends. Wherein the elbow scale comprises a semicircular angle scale (i.e. the base plate in this patent) with radially extending scale marks. The elbow measuring scale further comprises two measuring scales arranged on the angle scale, one measuring scale is fixed on the angle scale, the other measuring scale rotates around the circle center of the angle scale, and the inner sides, opposite to the two measuring scales, of the two measuring scales can be matched to read the angle of the elbow. Wherein, dipperstick among the prior art all includes fixed ruler and extension ruler, and the fixed ruler assembly links together through the connecting hole between extension ruler and the fixed ruler on the angle scale.

The prior art elbow measuring tape has a problem in that the extension rule is inserted into the inside of the fixing rule, and the width of the extension rule is smaller than that of the fixing rule. During the measurement, when the inboard of extension chi and the terminal surface laminating of elbow, carry out the reading through the correspondence of scale mark on fixed scale and the angle scale, but the medial surface of extension chi this moment, the medial surface and the scale mark of fixed scale are not on a plane, the scale mark that the fixed scale aimed at this moment can not accurately represent the position of extension chi on the angle scale, make the measurement have the deviation, can make measuring result mistake because of the wide change of extension chi even when measuring the elbow that the specification is up to standard, influence the operator and judge and select, cause measuring accuracy greatly reduced, the unable specification that satisfies needs of elbow precision, and then influence the normal clear of work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an elbow measuring tool to solve the technical problem that an elbow measuring result is inaccurate in the prior art.

In order to achieve the purpose, the technical scheme of the elbow measuring tool provided by the utility model is as follows: elbow measuring tool includes:

the angle scale is provided with radially extending scale marks;

the two measuring scales are arranged on the angle scale, at least one of the two measuring scales is rotatably assembled on the angle scale around the circle center of the angle scale, and the two measuring scales are provided with inner sides used for cooperatively reading the angle of the elbow;

the dipperstick includes that the components of a whole that can function independently is adorned at least two scale square poles together admittedly, and the inboard parallel and level of each scale square pole of same dipperstick arranges and is in the coplanar.

Has the advantages that: after the inboard of each scale square pole is arranged neatly, the scale square pole inboard of keeping away from the angle scale is used for pasting to the elbow terminal surface in order to carry out the reading, and the scale square pole that is close to the angle scale can read numerical value with the scale mark cooperation on the angle scale, has guaranteed that elbow terminal surface reading position and scale mark and angle scale centre of a circle three point position are in same straight line on the angle scale, and three positions all are located the plane that the inboard parallel and level of scale square pole was arranged promptly. The inner sides of the square rods of the scales are arranged in parallel and level, so that the measurement of the parameters of the large-size elbow can be ensured to be precise, no error exists in measurement, and the technical problem that the measurement is deviated and wrong due to different sizes in the prior art is solved.

Preferably, the scale square bar comprises joints at the ends and a middle section in the middle; the dipperstick is including connecting the connecting piece on the terminal surface of connecting in two adjacent scale square bars. The connecting piece is positioned on the end face of the joint, and cannot be exposed after being assembled, so that the whole body is more attractive.

Preferably, the connecting piece is a threaded connecting piece, and two adjacent scale square bars are detachably assembled together through threads of the threaded connecting piece. The threaded connection can be disassembled and assembled, so that the assembly is more firm, and the connection and disassembly work between the two square rods is very convenient.

Preferably, threaded connection spare all has the double thread threaded connection spare of external screw thread for both ends, all is equipped with the screw hole on the terminal surface of joint in the adjacent two scale square poles. Carry out the connection of adjacent scale square bar through double-end threaded connection spare, it is more convenient to process.

Preferably, the stud threaded connecting piece is a stud bolt connecting piece, grooves are formed in the end faces of the joints in the two adjacent ruler square bars, the heads of the stud bolt connecting pieces are placed into the grooves, and the threaded holes are formed in the bottoms of the grooves. The stud bolt connecting piece is a common connecting part, the processing is convenient, the cost is low, the groove is arranged to enable the two scale square rods to be connected through the stud bolt connecting piece, the joint is completely attached, and the connecting piece cannot be exposed.

Preferably, the middle part of the square rod of the scale is of a hollow structure. The weight of the square rod of the scale is reduced, and an operator can use the square rod to connect or measure more labor-saving.

Preferably, the width of each scale square bar of the same measuring scale is the same, so that the inner and outer sides of each scale square bar are flush. The square rod structures of all scales can be the same, the processing is more convenient, and the inner sides of the rear connecting rods are ensured to be positioned on the same plane, so that the square rod structure is more attractive.

Preferably, an arc-shaped guide groove for guiding the measuring scale is arranged on the angle scale; the elbow measuring tool also comprises a fixing structure for fixing the measuring scale at the arc-shaped guide groove after the measuring scale is attached to the end face of the elbow. The setting of arc guide way makes the dipperstick can stabilize the rotational sliding on the angle scale, and dipperstick rigidity makes things convenient for operator's reading and measurement through fixed knot structure after dipperstick and the elbow laminating.

Preferably, the arc-shaped guide groove penetrates through the angle scale along the thickness direction of the angle scale; the fixed knot constructs including the bolt that runs through dipperstick and arc guide way, still includes and cooperates and is fixed in the nut on the angle scale with the bolt. The arrangement of the bolt, the nut and the arc-shaped guide groove penetrating through the angle scale ensures the stability of the measuring scale after being fixed on the angle scale, so that the measuring scale cannot deviate or rock when being read.

Preferably, both measuring scales are rotatably assembled on the angle scale; the arc guide way includes the arc direction section that corresponds with each dipperstick, and two arc direction sections are arranged at the circumferencial direction of angle scale interval. The arc guide section further increases the stability of the measuring scale after being assembled with the angle scale.

Drawings

FIG. 1 is an elevation view of a bend measurement tool provided by the present invention;

FIG. 2 is a rear view of a bend measurement tool provided by the present invention;

FIG. 3 is a schematic view of the connection of two square rods of the scale in the elbow measuring tool provided by the present invention;

FIG. 4 is a schematic view of the working state of the elbow measuring tool provided by the utility model when measuring 30-degree elbow;

FIG. 5 is a schematic view of the working state of the elbow measuring tool provided by the utility model when measuring 60-degree elbow;

fig. 6 is a schematic view of the working state of the elbow measuring tool provided by the utility model when measuring 90-degree elbow.

Description of reference numerals:

1. an angle scale; 2. a square rod of the scale; 3. a joint; 4. a groove; 5. a threaded hole; 6. an arc-shaped guide groove; 7. a bolt; 8. a nut; 9. a stud connector; 10. measuring a scale; 11. and (4) bending the pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The specific embodiment 1 of the elbow measuring tool provided by the utility model is as follows:

as shown in fig. 1 to 2, the elbow measuring tool includes an angle scale 1, a measuring scale 10, and a connecting member and a fixing structure for connecting and assembling each measuring component. The circle center of the angle scale 1 is provided with a scale mark which extends radially to the circumference, the arc end of the scale mark extending to the angle scale 1 is provided with an angle mark for an operator to read the measured angle, and the two measuring rulers 10 are assembled on the angle scale 1 around the circle center of the angle scale 1 in a rotating way. In this embodiment, the dipperstick 10 includes two components of a whole that can function independently and adorn the scale square staff 2 admittedly, and scale square staff 2 includes the joint 3 of end department and is located the interlude in the middle of being located, and the mode of linking firmly of joint 3 adopts gluing or welding. The interlude of scale square bar 2 is hollow structure, connects 3 for solid rectangle block. Two measuring tapes 10 are each mounted on the angle scale 1 by means of a flat rivet in a rotating manner. The relative one side of two dipperstick 10 of definition is the inboard, and the medial surface of two dipperstick 10 carries out the reading with the scale mark cooperation of angle scale 1, and the medial surface cooperation of two dipperstick 10 reads the contained angle of elbow. The scale square rod 2 in each measuring scale 10 is provided with scale marks which are arranged at intervals along the length direction of the scale square rod and are used for reading the unilateral length of the elbow.

As shown in fig. 3, the measuring scale 10 includes two scale square bars 2, and the two scale square bars 2 are connected by a stud bolt connection 9. Specifically, a groove 4 is formed in the end face of the joint 3 of the square rod 2 of the scale, and a threaded hole 5 is formed in the bottom of the groove 4. During assembly, one rod part of the stud bolt connecting piece 9 penetrates into the threaded hole 5 of one scale square rod 2, and the groove 4 is used for accommodating the head part of the stud bolt connecting piece 9. The other scale bar 2 is screwed to the other rod portion of the stud bolt connection 9, and likewise, the head portion of the stud bolt connection 9 is received in the groove 4 of the other scale bar 2. In this embodiment, the width dimension of two scale square poles 2 is unanimous, and the equipment is accomplished the back, and the medial surface of two scale square poles 2 is located the coplanar.

In order to guide the rotation of the measuring scales 10, an arc-shaped guide groove 6 is formed in the angle scale 1, and the arc-shaped guide groove 6 is divided into arc-shaped guide sections corresponding to the two measuring scales 10 at the position of a scale mark of 90 degrees; arc guide way 6 runs through angle scale 1 along the thickness direction of angle scale 1, and arc guide way 6 is parallel to each other with the periphery circular arc of angle scale 1, sets up bolt 7 that runs through scale square bar 2 and arc guide way 6 in arc guide way 6, is fixed in on the angle scale 1 through nut 8 with bolt 7 matched with scale square bar 2. During actual measurement, after the insides of two dipperstick 10 all pasted tightly with the elbow that needs the measurement, through revolving to twist nut 8, fasten between scale square bar 2 and the angle scale 1, and then read the angle of elbow through the cooperation of the scale mark on 2 insides of scale square bar and the angle scale 1, read the unilateral length of elbow through the scale mark on the scale square bar 2.

During the in-service use, can only have one end to have in the scale square bar 2 that links to each other with angle scale 1 and connect 3, all the other scale square bar 2's in same dipperstick 10 both ends all have to connect 3, suitably select the scale square bar 2 of different quantity according to the size of elbow, make the inside and outside of every dipperstick 10 all be located same face after the concatenation, thereby two dipperstick 10 all can rotate the cooperation on angle scale 1 and measure work. Of course, in actual use, when the size of the elbow is small, the subsequent scale square bar 2 can be eliminated.

In this embodiment, the stud bolt connection 9 constitutes a threaded connection, i.e., a connection that connects two adjacent scale square bars. The bolt 7 and the nut 8 which fix the square rod 2 of the scale on the angle scale 1 form a fixed structure.

As shown in fig. 4, when the elbow 11 of 30 ° is measured, the elbow 11 is placed at a position corresponding to the measuring ruler 10 according to known parameters of the elbow 11, one of the measuring rulers 10 is attached to one end surface of the elbow 11, the other measuring ruler 10 is supported against the other end surface, the angle value read by the two measuring rulers 10 in a matching manner is the angle of the elbow 11, and the distance between the scale line corresponding to the center position of the elbow 11 in the measuring ruler 10 and the center of the angle scale 1 is a single-side length. When the elbow is actually machined, the end surfaces cannot be completely flush, so that the port deviation A exists, the elbow measuring tool of the embodiment can qualitatively judge that the elbow has the port deviation A, and if the port deviation A is required to be quantified, other measuring tools are required.

The standard angle of the elbow 11 in fig. 5 is 60 °, the standard angle of the elbow 11 in fig. 6 is 90 °, and the measurement process is the same as the above measurement process, and will not be described again.

The specific embodiment 2 of the elbow measuring tool provided by the utility model is as follows:

the difference from the embodiment 1 is that in the embodiment 1, two measuring rulers 10 are rotatably assembled on the angle scale 1; the arc guide groove 6 on the angle scale 1 is divided into two arc guide sections. In the embodiment, only one measuring scale is rotatably assembled on the angle scale, and the other measuring scale is fastened on the angle scale through bolts or welding or bonding. In other embodiments, the arcuate guide slot is an unsegmented through slot that extends along the arc opening of the angle scale.

The specific embodiment 3 of the elbow measuring tool provided by the utility model is as follows:

the difference from embodiment 1 is that, in embodiment 1, the arc guide groove 6 penetrates the angle scale 1 in the thickness direction of the angle scale 1, and the fixing structure includes a bolt 7 penetrating the measuring scale 10 and the arc guide groove 6, and a nut 8 which is engaged with the bolt 7 to fix the measuring scale 10 to the angle scale 1. In this embodiment, the arc guide way is a sliding groove formed in one side of the angle scale, and the sliding groove does not penetrate through the angle scale, so that the processing cost of the angle scale is saved. In other embodiments, the fixing structure is an external clamp, and the measuring scale and the angle scale are clamped and fixed by the clamp. In other different embodiments, the arc-shaped guide groove may be a T-shaped groove, a nut is slidably assembled in the T-shaped groove, the nut is prevented from being removed by stopping the T-shaped groove, a bolt is installed on the measuring scale in a penetrating manner, and the bolt is matched with the nut. When the measuring scale is rotated, the bolt is loosened, and after the measuring scale is rotated in place, the bolt is screwed, and the measuring scale is fastened by means of the matching of the bolt and the nut. In other embodiments, the arcuate guide slot is eliminated.

The specific embodiment of the elbow measuring tool provided by the utility model is as follows:

the difference from embodiment 1 is that in embodiment 1, the scale square bars 2 have the same size, and the inner and outer sides of the measuring tape 10 are on the same plane after splicing. In this embodiment, the width of each scale square bar is different in the same measuring tape, but the back is accomplished in the assembly, and the medial surface of each scale square bar is located the coplanar.

The specific embodiment 5 of the elbow measuring tool provided by the utility model is as follows:

the difference from embodiment 1 is that in embodiment 1, the middle portion of the scale square bar 2 is of a hollow structure. In this embodiment, the scale square bar is a solid square bar.

The specific embodiment of the elbow measuring tool provided by the utility model is as follows:

the difference with embodiment 1 lies in that, in embodiment 1, two scale square poles 2 are spliced into a whole through stud connecting piece 9, all are equipped with recess 4 on the terminal surface of connecting 3 in two adjacent scale square poles 2. In this embodiment, the threaded connection member is a stud, and both ends of the stud are screwed into the threaded holes of different joints respectively, and the groove in the joint can be eliminated at this time. In other embodiments, the connecting piece is a single-head bolt, the bolt head of the single-head bolt is preset on the joint of one of the scale square bars, a welding or bonding mode can be adopted, the rod part of the bolt extends out of the end part of the scale square bar, and the two scale square bars are connected through the threaded hole formed in the end part of the other scale square bar. In other different embodiments, the two scale square rods are butted by forcibly installing the column body in the groove of the joint, and the column body can be an elastic block or a wood plug.

The specific embodiment 7 of the elbow measurement tool provided by the utility model:

the difference from embodiment 1 is that in embodiment 1, the connecting members are all embedded structures, and after the assembly of the measuring scale 10 is completed, the connecting members are not exposed to the outside. In this embodiment, can be in the tip mounting flange of scale square bar, fix adjacent scale square bar together through the bolt.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. 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 (10)

1. An elbow measurement tool, comprising:

the angle scale (1) is provided with radially extending scale marks;

the angle scale comprises two measuring scales (10) which are arranged on an angle scale (1), wherein at least one of the two measuring scales (10) is rotatably assembled on the angle scale (1) around the circle center of the angle scale (1), and the two measuring scales (10) are provided with inner sides for cooperatively reading the angle of an elbow;

the method is characterized in that:

the measuring scale (10) comprises at least two scale square rods (2) which are fixedly arranged together in a split mode, and the inner sides of the scale square rods (2) of the same measuring scale (10) are arranged in a flush mode and are located on the same plane.

2. The elbow measurement tool of claim 1, wherein: the scale square rod (2) comprises a joint (3) at the end part and a middle section in the middle;

the measuring scale (10) comprises a connecting piece connected to the end face of the joint (3) in the adjacent two scale square rods (2).

3. The elbow measurement tool of claim 2, wherein: the connecting piece is a threaded connecting piece, and the adjacent two scale square rods (2) are detachably assembled together through threads of the threaded connecting piece.

4. The elbow measurement tool of claim 3, wherein: the threaded connection spare all has the double thread threaded connection spare of external screw thread for both ends, all is equipped with screw hole (5) on the terminal surface of joint (3) in two adjacent scale square poles (2).

5. The elbow measurement tool of claim 4, wherein: the double-end threaded connecting piece is a double-end bolt connecting piece (9), grooves (4) are formed in the end faces of the joints (3) in the adjacent two scale square bars (2), the heads of the bolts of the double-end bolt connecting piece (9) are placed into the grooves (4), and the threaded holes (5) are formed in the bottoms of the corresponding grooves (4).

6. The elbow measurement tool of any one of claims 2-5, wherein: the middle part of the scale square rod (2) is of a hollow structure.

7. The elbow measurement tool of any one of claims 1-5, wherein: the width of each scale square rod (2) of the same measuring scale (10) is the same, so that the inner side and the outer side of each scale square rod (2) are flush.

8. The elbow measurement tool of any one of claims 1-5, wherein: an arc-shaped guide groove (6) for guiding the measuring scale (10) is arranged on the angle scale (1);

the elbow measuring tool also comprises a fixing structure for fixing the measuring scale (10) at the arc-shaped guide groove (6) after the measuring scale (10) is attached to the end face of the elbow.

9. The elbow measurement tool of claim 8, wherein: the arc-shaped guide groove (6) penetrates through the angle scale (1) along the thickness direction of the angle scale (1);

the fixing structure comprises a bolt (7) penetrating through the measuring scale (10) and the arc-shaped guide groove (6), and further comprises a nut (8) which is matched with the bolt (7) and used for fixing the measuring scale (10) on the angle scale (1).

10. The elbow measurement tool of claim 9, wherein: the two measuring scales (10) are rotatably assembled on the angle scale (1);

the arc guide groove (6) comprises arc guide sections corresponding to the measuring scales (10), and the two arc guide sections are arranged at intervals in the circumferential direction of the angle scale (1).

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