CN217877477U

CN217877477U - Simple measuring pull rod for inner diameter of boiler pressure vessel cylinder

Info

Publication number: CN217877477U
Application number: CN202222304523.8U
Authority: CN
Inventors: 徐忠成; 刘洋; 张文
Original assignee: Dalian Boiler Pressure Vessel Inspection And Testing Institute Co ltd
Current assignee: Dalian Boiler Pressure Vessel Inspection And Testing Institute Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-22
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a simple and easy measuring pull rod of boiler pressure vessel barrel internal diameter, including mounting disc and sleeve, sleeve one end is worn to establish on the mounting disc, be provided with in the sleeve and draw the axle, draw axle one end to be provided with the fixed block, the activity is provided with three groups on the mounting disc and measures the support, three groups of measurement support go up the activity and all are provided with the support frame, three groups of support frame one end all set up on the fixed block, three groups have all seted up the rectangular channel in measuring the support, three groups of rectangular channels all are provided with compression spring, three groups of rectangular channels all are provided with the telescopic link, three groups of compression spring's one end all contacts with three telescopic link one end of group. The utility model provides a current barrel that only can be less to the aperture detects, the area of contact of top and bottom is less, the perpendicular barrel inner wall of measuring tool when can not effectively guarantee to measure, and can only measure from the nearer inner wall of barrel mouth, leads to the great problem of measuring error, through the setting of mounting disc and telescopic link under, effectively guarantees telescopic link and barrel inner wall contact and perpendicular.

Description

Simple measuring pull rod for inner diameter of boiler pressure vessel cylinder

Technical Field

The utility model relates to a measuring device technical field, more specifically say, in particular to simple and easy measuring pull rod of boiler pressure vessel barrel internal diameter.

Background

When the boiler pressure vessel is measured, the length of the traditional pull rod which can be extended is short, only a cylinder with a small caliber can be measured, the contact area of the top end and the bottom end is small, the measurement pull rod cannot be perpendicular to the cylinder, and the measurement error is large.

The utility model discloses a pull rod is simply measured to boiler pressure vessel barrel internal diameter as the utility model patent of patent No. CN201721184308.1, the device removes the measuring staff dress in fixed measuring staff when using, will remove the measuring staff and pull out during the use, not the time spent, it can fix removing the measuring staff to remove this structure that the measuring staff contracts into again, nut on the threaded rod takes two first connecting rods rebound, contained angle grow between two first connecting rods, thereby make first connecting rod push up the second connecting rod to the dead lever outside, and block in the draw-in groove of removing the measuring staff inner wall, thereby remove the measuring staff just by fixed, conveniently read measuring result. Although traditional measuring tool conveniently carries, but can only detect the barrel that the aperture is less, the area of contact of top and bottom is less, and measuring tool perpendicular barrel inner wall when can not effectively guarantee to measure leads to measuring error great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple and easy measuring pull rod of boiler pressure vessel barrel internal diameter aims at solving the current barrel that only can be less to the bore and detects, and the area of contact of top and bottom is less, and measuring tool inner wall of the vertical cylinder in the time of can not effectively guaranteeing to measure, and can only measure from the nearer inner wall of barrel mouth, leads to the great technical problem of measuring error.

The utility model discloses a realize like this:

the utility model provides a simple and easy measuring pull rod of boiler pressure vessel barrel internal diameter, includes mounting disc and sleeve, sleeve one end is worn to establish on the mounting disc, be provided with in the sleeve and draw the axle, draw axle one end and be provided with the fixed block, the activity is provided with three group's measuring support on the mounting disc, three group all be provided with the support frame in the activity on the measuring support, three group support frame one end all sets up on the fixed block, three group the rectangular channel has all been seted up in the measuring support, three group all be provided with compression spring in the rectangular channel, three group all be provided with the telescopic link in the rectangular channel, three group compression spring's one end all with three group telescopic link one end contact.

As the utility model discloses a preferred technical scheme, three groups flexible groove has all been seted up on the measurement support, three groups flexible inslot all is provided with the chucking subassembly, the chucking subassembly includes the telescopic shaft, the cover is equipped with spacing spring on the telescopic shaft, telescopic shaft one end is provided with the fixture block, three groups all be provided with the rack on the telescopic shaft, three groups the fixture block is blocked respectively and is established three groups in the rack.

As a preferred technical scheme of the utility model, three groups logical groove, three groups have all been seted up to telescopic link one end it all is provided with the bearing to lead to the inslot.

As the utility model discloses a preferred technical scheme, be provided with limit support on the sleeve, the activity is provided with spacing tooth on the limit support, the last torsional spring that is provided with of limit support, torsional spring one end sets up on the spacing tooth, the draw-in groove has been seted up on the sleeve, draw epaxial spacing groove of having seted up, spacing tooth passes the draw-in groove card is established the spacing inslot.

As an optimal technical scheme of the utility model, a draw an pot head to be equipped with reset spring, reset spring is located the mounting disc with between the fixed block.

As the utility model discloses an optimized technical scheme, a pot head of drawing the axle is equipped with the rubber sleeve.

As the utility model discloses an optimized technical scheme, be provided with the scale mark on the telescopic link.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the sight is shielded, the measuring tool can be effectively ensured to be vertical to the inner wall of the cylinder body. Under the arrangement of the mounting disc and the telescopic rods in the three groups of supporting frames, the three groups of telescopic rods are effectively ensured to be in contact with and perpendicular to the surface of the inner wall of the cylinder body during measurement, so that the measurement result is accurate; all be provided with compression spring in three support frames of group, compression spring can prevent that the telescopic link from sliding in the support frame when measuring in the use, leads to measuring the error, and three telescopic links of group all can be perpendicular with the barrel inner wall when three support frames of group are opened and are perpendicular with the mounting disc, and the length of the telescopic link of three groups this moment is exactly the diameter of cylinder of surveying.

2. Under the setting of chucking subassembly, make three telescopic links of group and the perpendicular back of barrel inner wall when three measuring brackets of operation, all be provided with the rack on having three telescopic links of group again, fixture block in the chucking subassembly can be in the rack of establishing on the telescopic link under the effect of spacing spring for the telescopic link is firm reliable fixes corresponding position in measuring the support, effectively guarantees to go wrong at reading in-process, avoids the secondary to measure, causes work efficiency to hang down.

Drawings

FIG. 1 is a schematic view of an explosion structure of a simple measuring pull rod for the inner diameter of a cylinder of a boiler pressure vessel in accordance with the present invention;

FIG. 2 is a schematic structural view of a simple measuring pull rod for the inner diameter of a cylinder of a boiler pressure vessel according to the present invention;

FIG. 3 is a schematic structural view of a clamping assembly in a simple pull rod for measuring the inner diameter of a cylinder of a boiler pressure vessel according to the present invention;

the corresponding relation between the names of the attachments and the numbers of the attached figures in the figure:

101. a sleeve; 102. mounting a disc; 103. a measuring support; 104. a rack; 105. a bearing; 106. a compression spring; 107. a support frame; 108. a through groove; 109. a telescopic rod; 110. scale marks; 111. a rectangular groove; 112. a fixed block; 113. a return spring; 114. pulling the shaft; 115. a rubber sleeve; 116. a limiting spring; 117. a clamping block; 118. a telescopic groove; 119. a telescopic shaft; 120. limiting teeth; 121. a torsion spring; 122. a card slot; 123. a limiting groove; 124. and a limiting support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention.

Example (b):

referring to fig. 1 and 2: boiler pressure vessel barrel internal diameter simply measures pull rod, including mounting disc 102 and sleeve 101, sleeve 101 one end is worn to establish on mounting disc 102, be provided with in the sleeve 101 and draw axle 114, it is provided with fixed block 112 to draw axle 114 one end, the activity is provided with three sets of measuring brackets 103 on the mounting disc 102, the activity all is provided with support frame 107 on three sets of measuring brackets 103, three sets of support frame 107 one end all set up on fixed block 112, rectangular channel 111 has all been seted up in three sets of measuring brackets 103, all be provided with compression spring 106 in three sets of rectangular channel 111, all be provided with telescopic link 109 in three sets of rectangular channel 111, the one end of three sets of compression spring 106 all contacts with three sets of telescopic link 109 one end.

When examining the barrel inside, need place measuring tool inside the barrel, this sight that can make the user receives sheltering from of barrel, and traditional measuring tool only both ends contact barrel inner wall, when can not guarantee to measure, the perpendicular barrel inner wall surface in both ends, if the perpendicular barrel inner wall of non-is measured, measuring error can appear, under the setting of telescopic link 109 in mounting disc 102 and three support frames 107 of group, three telescopic link 109 of group all with barrel inner wall surface contact and perpendicular when effectively guaranteeing to measure, make the measuring result accurate, all be provided with compression spring 106 in three support frames 107 of group, compression spring 106 can be in the use, prevent that telescopic link 109 from sliding in support frame 107 when measuring, lead to measuring error. Under the arrangement of the pull shaft 114 and the support frames 107, the three groups of support frames 107 are controlled to open and close by controlling the matching of the pull shaft 114 and the support frames 107.

When specifically measuring, put into the barrel inner wall that needs the measurement with three group's support frames 107, carry out the pull to the axle of drawing 114 again, three group's support frames 107 can be opened under support frame 107's effect during the pull, until perpendicular with mounting disc 102, the in-process diameter grow that three group's support frames 107 were opened, telescopic link 109 can contact and friction extrusion with the barrel inner wall, can be pressed back in the support frame 107 when telescopic link 109 is extruded, three group's telescopic links 109 all can be perpendicular with the barrel inner wall when three group's support frames 107 are opened and are perpendicular with mounting disc 102, the length of three group's telescopic links 109 this moment is exactly the diameter of the barrel of surveying.

Referring to fig. 3, the three groups of measuring brackets 103 are all provided with telescopic slots 118, the three groups of telescopic slots 118 are all provided with clamping assemblies, each clamping assembly comprises a telescopic shaft 119, the telescopic shaft 119 is sleeved with a limiting spring 116, one end of the telescopic shaft 119 is provided with a clamping block 117, the three groups of telescopic rods 109 are all provided with racks 104, and the three groups of clamping blocks 117 are respectively clamped in the three groups of racks 104.

Under the setting of chucking subassembly, measure support 103 when operating three groups and make three telescopic links 109 and barrel inner wall perpendicular backs, all be provided with rack 104 on three telescopic links 109 of group again, fixture block 117 in the chucking subassembly can block under spacing spring 116's effect and establish in rack 104 on telescopic link 109, make telescopic link 109 firmly reliable fix corresponding position in measuring support 103, effectively guarantee to make mistakes in reading process, avoid the secondary to measure, cause work efficiency to hang down, because telescopic link 109 is established by card 117 card and is fixed in measuring support 103, can accomplish the back when the inside light of barrel is not enough or is sheltered from when measuring, the extension length of direct measurement support 103 and telescopic link 109, indirectly reach the barrel internal diameter of surveying. After the measurement is finished, the telescopic shaft 119 is lifted to take the fixture block 117 out of the rack 104, and at the moment, the telescopic rod 109 can be pushed to be in the original position under the action of the compression spring 106, so that the next measurement is facilitated.

Referring to fig. 2, one end of each of the three sets of telescopic rods 109 is provided with a through groove 108, and the three sets of through grooves 108 are provided with bearings 105. Under three bearing 105's of group settings for avoid telescopic link 109 and barrel inner wall direct contact in the measurement process, reduce telescopic link 109 at the frictional resistance of slip in-process and effectively avoid telescopic link 109 to cause the mar to the barrel inner wall when the barrel inner wall removes, destroy the testee.

Referring to fig. 2, a limiting support 124 is disposed on the sleeve 101, a limiting tooth 120 is movably disposed on the limiting support 124, a torsion spring 121 is disposed on the limiting support 124, one end of the torsion spring 121 is disposed on the limiting tooth 120, a clamping groove 122 is disposed on the sleeve 101, a limiting groove 123 is disposed on the pull shaft 114, and the limiting tooth 120 passes through the clamping groove 122 and is clamped in the limiting groove 123. Under the setting of spacing tooth 120, carry out the pull to the rachis 114 and make the perpendicular barrel inner wall of telescopic link 109 after, spacing tooth 120 can pass draw-in groove 122 card under the effect of torsional spring 121 and establish in spacing groove 123, will rachis 114 fixes the relevant position in telescopic link 109, is convenient for observe whether three groups of telescopic links 109 contact and perpendicular barrel inner wall, avoids three groups of telescopic links 109 not complete contact barrel inner wall to derive wrong measured data.

Referring to fig. 2, a return spring 113 is sleeved on one end of the pull shaft 114, and the return spring 113 is located between the mounting plate 102 and the fixing block 112. When the pull shaft 114 needs to return to the initial position, only one end of the limit tooth 120 needs to be pressed down, the limit tooth 120 is separated from the limit groove 123, and the fixed block 112 is pushed to the initial position under the arrangement of the return spring 113, so that the pull shaft 114 is indirectly brought back.

In some embodiments, referring to fig. 2, a rubber sleeve 115 is sleeved on one end of the pull shaft 114. Under the setting of rubber sleeve 115, increase palm and the frictional force of axle 114 of drawing, avoid in the measurement process because of the palm of the hand is perspired, the frictional force reduces and leads to the condition of drawing the axle 114 of not appearing.

In some embodiments, referring to fig. 2, the retractable rod 109 is provided with scale marks 110. Under the setting of scale mark 110, can directly obtain corresponding result according to big scale mark 110 on the telescopic link 109 after the measurement is accomplished, need not carry out the secondary measurement with the help of other measuring tool, improve work efficiency.

The utility model discloses an operating procedure does:

firstly when measuring, put into the barrel inner wall that needs to be measured with three support frames 107, pull 114 again and carry out the pull, three support frames 107 of group can be opened under support frame 107's effect during the pull, until perpendicular with mounting disc 102, the in-process diameter grow that three support frames 107 of group were opened, telescopic link 109 can contact and friction extrusion with the barrel inner wall, telescopic link 109 can be pressed back in support frame 107 when being extruded, three telescopic link 109 of group all can be perpendicular with the barrel inner wall when three support frames 107 of group are opened and are perpendicular with mounting disc 102, the length of three telescopic link 109 of group this moment is exactly the diameter of the barrel of surveying.

After the measurement is completed, the telescopic shaft 119 is lifted to bring the fixture block 117 out of the rack 104, and at the moment, the telescopic rod 109 is pushed to be in the original position under the action of the compression spring 106, so that the next measurement is facilitated. When the pull shaft 114 needs to return to the initial position, only one end of the limiting tooth 120 needs to be pressed down, the limiting tooth 120 is separated from the limiting groove 123, and the fixing block 112 is pushed to the initial position under the arrangement of the return spring 113, so that the pull shaft 114 is indirectly brought back.

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. The utility model provides a simple and easy measuring pull rod of boiler pressure vessel barrel internal diameter which characterized in that: including mounting disc (102) and sleeve (101), sleeve (101) one end is worn to establish on mounting disc (102), be provided with in sleeve (101) and draw axle (114), it is provided with fixed block (112) to draw axle (114) one end, the activity is provided with three groups of measurement support (103) on mounting disc (102), three groups it all is provided with support frame (107) to measure the activity on support (103), three groups support frame (107) one end all sets up on fixed block (112), three groups rectangular channel (111), three groups have all been seted up in measurement support (103) rectangular channel (111) are interior all provided with compression spring (106), three groups all are provided with telescopic link (109) in rectangular channel (111), three groups the one end of compression spring (106) all with three groups telescopic link (109) one end contact.

2. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel as set forth in claim 1, wherein: three set all seted up flexible groove (118) on measuring support (103), three sets all be provided with the chucking subassembly in flexible groove (118), the chucking subassembly includes telescopic shaft (119), the cover is equipped with spacing spring (116) on telescopic shaft (119), telescopic shaft (119) one end is provided with fixture block (117), three sets all be provided with rack (104) on telescopic shaft (109), three sets fixture block (117) are blocked respectively and are established three sets in rack (104).

3. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel according to claim 1, is characterized in that: through grooves (108) are formed in one ends of the three groups of telescopic rods (109), and bearings (105) are arranged in the through grooves (108).

4. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel according to claim 1, is characterized in that: be provided with spacing support (124) on sleeve (101), the activity is provided with spacing tooth (120) on spacing support (124), be provided with torsional spring (121) on spacing support (124), torsional spring (121) one end sets up on spacing tooth (120), draw-in groove (122) have been seted up on sleeve (101), draw and seted up spacing groove (123) on axle (114), spacing tooth (120) pass draw-in groove (122) card is established in spacing groove (123).

5. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel as set forth in claim 1, wherein: one end of the pull shaft (114) is sleeved with a return spring (113), and the return spring (113) is located between the mounting disc (102) and the fixing block (112).

6. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel as set forth in claim 1, wherein: one end of the pull shaft (114) is sleeved with a rubber sleeve (115).

7. The simple measuring pull rod for the inner diameter of the cylinder of the boiler pressure vessel as set forth in claim 1, wherein: the telescopic rod (109) is provided with scale marks (110).