阅读说明：本技术 软密封闸阀内腔形位尺寸检测治具及应用 (Soft seal gate valve inner cavity shape and position size detection jig and application ) 是由 张少华 赵志杰 王朝海 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种软密封闸阀内腔形位尺寸检测治具及应用,该检测治具包括内腔圆弧标尺、上开档指示牌和上开档尺寸检测块,所述内腔圆弧标尺上段是矩形,下段是弧形,上段设有刻度；所述上开档指示牌底端与上开档尺寸检测块焊接,上开档指示牌与标尺通过限位螺栓连接；所述内腔圆弧标尺下段两侧焊接导向块,本发明将软密封闸阀内腔形位尺寸通过专用治具进行检测,提高了闸阀内腔的检测效率,减少了漏验率,降低了检验人员的劳动强度,为大规模生产制造合格产品提供了前期保障。(The invention discloses a detection jig for the shape, position and size of an inner cavity of a soft sealing gate valve and application thereof, wherein the detection jig comprises an inner cavity arc scale, an upper opening indication board and an upper opening size detection block, the upper section of the inner cavity arc scale is rectangular, the lower section of the inner cavity arc scale is arc-shaped, and the upper section of the inner cavity arc scale is provided with scales; the bottom end of the upper opening indication board is welded with the upper opening size detection block, and the upper opening indication board is connected with the scale through a limiting bolt; according to the invention, the shape and position sizes of the inner cavity of the soft sealing gate valve are detected by the special jig, so that the detection efficiency of the inner cavity of the gate valve is improved, the missing rate is reduced, the labor intensity of inspectors is reduced, and the early guarantee is provided for large-scale production and manufacturing of qualified products.)

1. Soft sealing gate valve inner chamber form and position size detection tool and application, characterized by: the detection jig comprises an inner cavity arc scale (1), an upper opening indicator board (5) and an upper opening size detection block (3), wherein the upper section of the inner cavity arc scale (1) is rectangular, the lower section of the inner cavity arc scale is arc-shaped, and the upper section of the inner cavity arc scale is provided with scales; the bottom end of the upper opening indicating plate (5) is welded with the upper opening size detection block (3), and the upper opening indicating plate (5) is connected with the scale through a limiting bolt (4); and guide blocks (2) are welded on two sides of the lower section of the inner cavity arc ruler (1).

2. The tool for detecting the shape, position and size of the inner cavity of the soft seal gate valve and the application of the tool are as claimed in claim 1, and the tool is characterized in that: the limiting bolt (4) penetrates through a long strip hole (8) in the upper section of the inner cavity arc ruler (1) and a through hole (6) of the upper opening sign (5).

3. The tool for detecting the shape, position and size of the inner cavity of the soft seal gate valve and the application of the tool are as claimed in claim 1, and the tool is characterized in that: the upper section of the inner cavity arc ruler (1) is provided with scales of-2- + 4.

4. The tool for detecting the shape, position and size of the inner cavity of the soft seal gate valve and the application of the tool are as claimed in claim 1, and the tool is characterized in that: the application method of the jig comprises the following steps:

the inner cavity arc ruler (1) is used independently:

s1, inserting the detection jig into the valve cavity, and enabling the guide block (2) to be in contact with the guide rib of the valve body;

s2, detecting that the arc degree at the position of the valve body flow channel does not meet the requirement when the inner cavity arc scale (1) is inclined;

the inner cavity arc ruler (1) is combined with the upper opening size detection block (3) for use:

a1, placing the jig into the valve cavity;

a2, the top end of the upper opening indicator (5) is not parallel to the scale mark of the upper section of the inner cavity arc ruler (1), which indicates that the opening size of the valve is unqualified;

a3, inserting a detection jig into a valve cavity, enabling a guide block (2) to contact a guide rib of the valve body, and if the top end of an upper opening indication board (5) is between-1 and +1 of the scale mark on the upper section of an inner cavity arc scale (1) and the top end of the upper opening indication board (5) is parallel to the scale mark on the upper section of the inner cavity arc scale (1), enabling the size of the valve cavity to be qualified; if the upper section scale of the inner cavity arc scale (1) is inclined relative to the upper opening indication board (5), the size of the flow channel in the valve cavity is unqualified; if the top end of the upper opening indication plate (5) is not parallel to the scale mark of the upper section of the inner cavity arc scale (1), the opening size of the valve is unqualified; if the top end of the upper opening indicating plate (5) is not between-1- +1 of the scale mark on the upper section of the inner cavity arc scale (1), the internal dimension of the valve is unqualified.

Technical Field

The invention relates to the detection of the shape and position size of an inner cavity of a soft seal gate valve.

Background

The soft seal gate valve has good sealing performance, and is widely applied to the water supply and drainage industry. The rubber-coated flashboard is formed by vulcanizing rubber on a metal framework in a metal mold, and the size stability is high. The valve body is formed by casting, the sealing surface is a blank surface, and the casting shrinkage rates of the valve body with different calibers and the casting process are different and are not easy to control. If the opening size of the valve body is out of tolerance, and the circular arc at the valve body flow passage is out of tolerance/bulge or bulge, the sealing leakage is unqualified when the valve is subjected to a sealing test, so that the first-pass yield of a product is low, and the production efficiency and the delivery period to a client are influenced. A vernier caliper is needed for detecting the opening size of the valve body, a general detection tool is not needed for detecting the size of a runner bulge or a bulge, the small-caliber gate valve can also be placed into the valve body by using a corresponding rubber-coated gate plate to be matched and detected, but the large-caliber (DN300 and above) gate valve is inconvenient to place the rubber-coated gate plate into the valve body to be matched and detected due to labor intensity, and the existing detection mode is not beneficial to large-scale production and manufacturing of the soft-seal gate valve.

Disclosure of Invention

(one) solves the technical problem

The invention aims to solve the technical problem that no special jig for detecting the shape and position size of the inner cavity of the soft seal gate valve is provided, so that a special jig for detecting the shape and position size of the inner cavity of the soft seal gate valve is provided.

(II) technical scheme

The technical scheme adopted by the invention is as follows: the detection jig comprises an inner cavity arc scale, an upper opening indication board and an upper opening size detection block, wherein the upper section of the inner cavity arc scale is rectangular, the lower section of the inner cavity arc scale is arc-shaped, and the upper section of the inner cavity arc scale is provided with scales; the bottom end of the upper opening indication board is welded with the upper opening size detection block, and the upper opening indication board is connected with the scale through a limiting bolt; and guide blocks are welded on two sides of the lower section of the inner cavity arc ruler.

Preferably, be equipped with rectangular trompil on the inner chamber circular arc scale, go up to be equipped with on the sign of opening a gear with the through-hole of spacing bolt looks adaptation, spacing bolt passes rectangular trompil and through-hole, and spacing bolt can reciprocate in rectangular trompil.

Preferably, the upper section of the inner cavity arc ruler is provided with scales of-2- + 4.

Preferably, the application method of the jig is as follows:

independent use of the inner cavity arc ruler:

s1, inserting the detection jig into the valve cavity, and enabling the guide block to be in contact with the guide rib of the valve body;

s2, if the inner cavity arc ruler is inclined, the arc degree at the position of the valve body flow channel is detected to be not in accordance with the requirement;

the inner cavity circular arc scale combines to open a shelves size detection piece and uses on:

a1, placing the jig into the valve cavity;

a2, the top end of the upper opening indicating plate is not parallel to the scale mark of the upper section of the inner cavity arc scale, which shows that the opening size of the valve is unqualified;

a3, inserting the detection jig into the valve cavity, contacting the guide block with the guide rib of the valve body, and if the top end of the upper opening indicator is between-1- +1 of the scale mark on the upper section of the arc scale of the cavity and the top end of the upper opening indicator is parallel to the scale mark on the upper section of the arc scale of the cavity, the size of the valve cavity is qualified; if the upper section scale of the inner cavity arc scale inclines relative to the upper opening indication board, the size of the flow passage in the valve cavity is unqualified; if the top end of the upper opening indication board is not parallel to the scale mark of the upper section of the inner cavity arc scale, the opening size of the valve is unqualified; if the top end of the upper opening indicating plate is not between-1- +1 of the scale mark on the upper section of the circular arc scale of the inner cavity, the internal dimension of the valve is unqualified.

(III) advantageous effects

Compared with the prior art, the invention provides a soft seal gate valve inner cavity form and position size detection jig and application, and has the following beneficial effects:

according to the invention, the shape and position size of the inner cavity of the soft seal gate valve is detected by the special jig, so that the detection efficiency of the inner cavity of the gate valve is improved, the missing inspection rate is reduced, the labor intensity of inspection personnel is reduced, and the early guarantee is provided for large-scale production and manufacturing of qualified products.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view at 1 in FIG. 1;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view at 3 of FIG. 2;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a diagram of a jig according to the present invention.

In the figure: 1 inner chamber circular arc scale, 2 guide blocks, 3 open a shelves size detection piece, 4 spacing bolts, 5 go up the sign of opening a shelves, 7 trepanning, 8 rectangular trompils.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a tool for detecting the shape, position and size of an inner cavity of a soft seal gate valve and an application thereof are provided, the tool comprises an inner cavity arc scale 1, an upper opening indicating plate 5 and an upper opening size detecting block 3, wherein the inner cavity arc scale 1 has a rectangular upper section, an arc lower section and scales; the bottom end of an upper opening indication plate 5 is welded with an upper opening size detection block 3, the upper opening indication plate 5 is connected with a scale through a limiting bolt 4, the upper opening size detection block 3 is rectangular, a sleeve hole 7 is formed in the center of the upper opening indication plate, the sleeve hole 7 is matched with the rectangle on the upper section of an inner cavity arc scale 1, and the upper opening size detection block 3 is sleeved on the inner cavity arc scale 1; the two sides of the lower section of the inner cavity arc scale 1 are welded with guide blocks 2.

Fig. 1, 3, 5 and 6 show, are equipped with rectangular trompil 8 on the inner chamber circular arc scale 1, go up to be equipped with on the sign 5 of opening a gear with the through-hole 6 of 4 looks adaptations of spacing bolt, and spacing bolt 4 passes rectangular trompil 8 and through-hole 6, and spacing bolt 4 can reciprocate in rectangular trompil 8.

As shown in figures 1 and 3, the upper section of the inner cavity arc ruler 1 is provided with scales of-2- + 4.

The application method of the jig comprises the following steps:

fig. 7 shows, the use of the lumen circular arc ruler 1 alone:

s1, inserting the detection jig into the valve cavity, and enabling the guide block 2 to be in contact with the guide rib of the valve body;

s2, if the inner cavity arc ruler 1 is inclined, the arc degree at the valve body flow passage is detected to be unqualified, and a universal feeler gauge is utilized;

the inner cavity arc ruler 1 is combined with the upper opening size detection block 3 for use:

a1, placing the jig into the valve cavity;

a2, the top end of the upper opening indication board 5 is not parallel to the scale mark of the upper section of the inner cavity arc scale 1, which shows that the opening size of the valve is unqualified;

a3, inserting the detection jig into the valve cavity, enabling the guide block 2 to contact with the guide rib of the valve body, and if the top end of the upper opening indication board 5 is between-1 and +1 of the scale mark of the upper section of the circular arc scale 1 of the cavity and the top end of the upper opening indication board 5 is parallel to the scale mark of the upper section of the circular arc scale 1 of the cavity, enabling the size of the valve cavity to be qualified;

if the upper section scale of the inner cavity arc scale 1 is inclined relative to the upper opening indication board 5, the size of the flow channel in the valve cavity is unqualified;

if the top end of the upper opening indication board 5 is not parallel to the scale mark of the upper section of the inner cavity arc scale 1, the opening size of the valve is unqualified;

if the top end of the upper opening indicating plate 5 is not between the scale marks-1- +1 of the upper section of the inner cavity arc scale 1, the inner dimension of the valve is unqualified.

The key technical key point of the invention is that the inner cavity arc scale 1 is fully utilized to be matched with the upper opening size detection block 3 and the upper opening indication board 5 for use, the scale value at the upper end of the inner cavity arc scale 1 (the scale protrudes out of the upper edge of the valve body, which is convenient for observing and reading) is observed, whether the opening size on the valve body is larger (the scale value is positive) or smaller (the scale value is negative) and whether the specific value and the arc radian at the flow passage in the valve cavity are qualified can be directly detected, and the detection efficiency is improved.

It is noted that, herein, 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, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.