Caliper with fixed jaw distance for positioning and mounting turning plate component and use method of caliper

Abstract

The invention discloses a fixed jaw distance caliper for positioning and installing a turning plate component and a using method thereof.The fixed jaw distance caliper comprises a caliper body and an auxiliary jaw set, the caliper body is composed of a main caliper rod and a vernier scale, the auxiliary jaw set comprises a limiting jaw and a positioning jaw, and a magnetic limiting clamping block is used for adsorbing and fixing the caliper and positioning a turning plate body; the limiting claw is used for measuring the opening width of a hull structure and assisting in limiting, and the positioning claw is used for positioning the mounting positions of the hinge plate component and the turning plate fixing piece. Through improvement on the basis of a common vernier caliper, the installation position of the turnover plate component can be measured and positioned quickly, conveniently and accurately, so that the positioning and measuring speed and precision of the turnover plate component of the transverse bulkhead of the container ship are improved; the problems of time consumption, high labor intensity and low precision of positioning measurement in the mounting process of the turning plate component are solved; in addition, through the detachable and replaceable positioning claw body on the base, the positioning claw can adapt to opening depths of different structures, and universality and flexibility are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of container ship construction, and particularly relates to a fixed jaw pitch caliper for positioning and installing a flap member and a using method thereof. Background Art

[0002] As Figures 10 to 12 shown, a large number of flap members are provided on the transverse bulkhead of the transverse compartment of a container ship. The flap member includes a rotatable flap body, a rotating mechanism and a supporting backing plate. The rotating mechanism includes a flap fixing member and a hinge plate member. The distance from the center of the flap fixing member to the edge of the adjacent hull structure opening is fixed. The hinge plate member provided on the flap body is hinged and fixed to the flap fixing member provided on the hull structure opening, so that the flap body can be turned around the hinge and erected on the supporting backing plate fixedly connected to the hull structure. Therefore, a large number of flap fixing members and supporting backing plates often need to be fixed on the hull structure. However, the layout spacing between the flap fixing member and the supporting backing plate is limited by the width dimension of the structure opening on the hull structure platform, resulting in frequent changes in the layout spacing.

[0003] Currently, during the on-site construction positioning process of the flap in the transverse compartment of a container ship, traditional measuring tools such as a tape measure or a straightedge are usually used. However, since the hull structure opening is arc-shaped and there are protrusions on both sides of the edge, and at the same time, in order to ensure the smooth turning of the flap body, there is also a gap between the protrusion at the edge of the hull structure opening in the installation area of the flap member and the arc-shaped outer edge of the flap body. As a result, when the traditional measuring tool is used for positioning, it often needs to be measured repeatedly between the installation reference point and the reference object, which leads to a time-consuming and labor-intensive on-site construction positioning process. Moreover, the final measurement accuracy obtained by positioning with the traditional measuring tool is relatively low, and there are often situations where the flap fixing member and the hinge plate member of the pre-installed rotating mechanism cannot be correctly docked and aligned due to positioning deviation. At the same time, the error generated during the installation positioning process may also cause the rotating mechanism of the flap to be locked due to friction and unable to achieve turning rotation. In addition, the change in the depth of the hull structure opening in the installation area of the flap member of different ship types or different areas of the same ship will also increase the difficulty and accuracy of measurement.

[0004] Therefore, during the installation process of the flap in the transverse bulkhead of a container ship, how to achieve convenient, fast, and accurate measurement and positioning in on-site production has become a technical problem that needs to be solved urgently by those skilled in the art. To overcome the technical problems in on-site construction, this application proposes a fixed jaw-spacing caliper modified based on an ordinary vernier caliper. By the adjustability of the position and spacing of the auxiliary jaw group, the measurement of the installation position of the flap component is realized, which greatly facilitates the workers to quickly and conveniently measure the installation position of the flap component in a complex ship construction environment. At the same time, since the length range of such flaps of large container ships varies between 1.5 m and 2.8 m, and each component of the flap component is relatively long, the magnetic design enables the positioning and installation work to be completed without holding a particularly long measuring tool for a long time. Summary of the Invention

[0005] To solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a fixed jaw-spacing caliper for positioning and installing flap components and its usage method. By improving on the basis of an ordinary vernier caliper, it can quickly measure the spacing of the ship structure and the installation position of the flap rotation mechanism corresponding to the structure, thereby greatly improving the positioning measurement speed and accuracy of the flap rotation components on the transverse bulkhead of the container ship.

[0006] To achieve the above purpose and other related purposes, the present invention adopts the following technical solutions:

[0007] In the first aspect of the present invention, there is provided a fixed jaw-spacing caliper for positioning and installing flap components, including a caliper body and an auxiliary jaw group;

[0008] The caliper body includes a main scale bar and a vernier scale, and the vernier scale is sleeved on the main scale bar and can slide left and right along the main scale bar and be locked and fixed. Scale lines are provided on the main scale bar;

[0009] An auxiliary jaw group is provided on the same side of the main scale bar and the vernier scale respectively. Each auxiliary jaw group includes a limit jaw and a positioning jaw. The limit jaw and the positioning jaw are on the same side, and a fixed jaw spacing is provided between the adjacent limit jaw and the positioning jaw, and the spacing of the fixed jaw spacing is equal to the distance from the flap fixing part to the edge of the adjacent flap body. The distance from the lower tip of the positioning jaw to the lower end face of the main scale bar is consistent with the depth of the ship structure opening.

[0010] The limiting claws are used to measure the distance between the two side edges of the structural opening on the hull structure and assist in limiting. A limiting block is provided on the limiting claws, and the width of the limiting block is the same as the width of the gap between the two ends of the outer side of the flap body and the adjacent edge of the hull structural opening. The limiting block has magnetism, which is used to adsorb and fix the fixed jaw distance caliper on the hull structure, and at the same time is used to position the position of the flap body based on the edge of the hull structural opening. The limiting claws include a first limiting claw and a second limiting claw; the positioning claws are used to position the installation position of the flap fixing member on the hull structure, and the positioning claws include a first positioning claw and a second positioning claw.

[0011] As a preferred technical solution, the first limiting claw is vertically fixed on the main scale bar and there is a certain distance between it and the left edge of the main scale bar. The left end face of the first limiting claw is flush with the zero scale reference line on the scale line; the second limiting claw is vertically fixed on the right end of the vernier scale, and the right end face of the second limiting claw is flush with the right edge of the vernier scale. The distance between the first limiting claw and the second limiting claw is the width of the structural opening.

[0012] As a preferred technical solution, the limiting block includes a first limiting block and a second limiting block. The first limiting block is arranged on the first limiting claw, and the second limiting block is arranged on the second limiting claw; the left edge of the first limiting block is flush with the left edge of the first limiting claw, the right edge of the second limiting block is flush with the right edge of the second limiting claw, and the upper edge of the first limiting block and the upper edge of the second limiting block are both flush with the lower edge of the main scale bar.

[0013] As a preferred technical solution, the first positioning claw is vertically fixed on the main scale bar, and the fixed jaw distance is provided between the outer end face of the first positioning claw and the outer end face of the first limiting claw; the second positioning claw is vertically fixed on the vernier scale, and the fixed jaw distance is provided between the outer end face of the second positioning claw and the outer end face of the second limiting claw.

[0014] As a preferred technical solution, both the first positioning claw and the second positioning claw include a base and a positioning claw body. The positioning claw body is detachably fixed to one end of the base, and the other end of the base is fixed to the caliper body.

[0015] As a preferred technical solution, the length of the positioning claw body is determined according to the depth of the structural opening on different ship types, so that the distance from the tip of the positioning claw body to the lower end face of the main scale bar is the same as the depth of the structural opening.

[0016] As a preferred technical solution, a spirit level is also provided on the main scale bar.

[0017] In a second aspect of the present invention, there is provided a method of using a fixed jaw pitch caliper for positioning and installing a flap member. By using the fixed jaw pitch caliper for positioning and installing a flap member described in any one of the above, the method includes the following steps:

[0018] S1. Determine the lengths of the main scale bar and the positioning jaws according to the opening size of the hull structure.

[0019] S2. Place the fixed jaw pitch caliper at the opening of the hull structure in the installation area of the flap member, and abut the first limiting jaw against one side edge of the opening of the hull structure.

[0020] S3. Slide the vernier scale on the main scale bar until the second limiting jaw abuts against the other side edge of the opening of the hull structure, and magnetically fix the fixed jaw pitch caliper to the hull structure by using the limiting block.

[0021] S4. Use the first positioning jaw and the second positioning jaw to position and install the fixed support backing plate and the flap fixing member.

[0022] S5. Use the limiting block to position and install the flap body.

[0023] As a preferred technical solution, the step S4 includes the following specific steps:

[0024] S4-1. Abut the upper ends of the support backing plate against the right side of the first positioning jaw and the left side of the second positioning jaw respectively. Then, fixedly connect the front end of the support backing plate to the hull structure.

[0025] S4-2. At the same time, fix the flap fixing member to the hull structure so that the centers of the flap fixing member are respectively aligned with the lower tips of the first positioning jaw and the second positioning jaw.

[0026] As a preferred technical solution, the step S5 includes the following specific steps:

[0027] S5-1. Place the flap body between the two limiting blocks on both sides of the fixed jaw pitch caliper. At the same time, make the rear side edge of the flap body flush with the front side edge of the main scale bar, and make the lower end surface of the flap body fit with the upper end surface of the auxiliary jaw group.

[0028] S5-2. Then, lock and fix the hinge plate member on the flap body to the flap fixing member through fasteners to complete the positioning and installation of the flap body.

[0029] As described above, the present invention has the following beneficial effects:

[0030] (1) A fixed jaw distance caliper for positioning and installing a flap member and its usage method according to the present invention can be applicable to different transverse bulkhead structure positions at various locations of container ships with different specifications; by setting a limit block with magnetic adsorption, the problem of requiring multiple people to cooperate in operation when the overall weight of the fixed jaw distance caliper is affected by the measured length is solved. Only a single person is required to operate, saving a large amount of manpower and material resources, and at the same time avoiding errors that may occur during the cooperation of multiple people.

[0031] (2) A fixed jaw distance caliper for positioning and installing a flap member and its usage method according to the present invention, through the design of a detachable and replaceable positioning jaw body and base, greatly increases the application range of the tool of the present invention and enhances the versatility of the tool; when encountering different structural opening depths in different ship type designs, or different structural opening depths in different hull structures on the same ship, the positioning jaw with an adapted length can be disassembled and replaced to cope with application scenarios of multiple ship types and multiple situations, having a wider applicability and flexibility.

[0032] (3) A fixed jaw distance caliper for positioning and installing a flap member and its usage method according to the present invention, compared with the prior art, has fixed the relative positions of the measurement points through the positioning jaw and the limit jaw. Only by referring to the structural opening can the installation positioning points be quickly obtained; at the same time, the scale lines on the main scale bar can be used to determine whether there is an accuracy error between the actual hull opening value and the designed value. Therefore, the deviation can be corrected in a timely manner during on-site construction; compared with using an ordinary tape measure for measurement and positioning during the traditional positioning and installation process, this caliper is convenient to use, simple to operate, and can greatly reduce the on-site installation positioning man-hour input. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the front view of the structure of a fixed jaw distance caliper for positioning and installing a flap member according to the present invention.

[0034] Figure 2 is the front view of the structure of a fixed jaw distance caliper with a detachable positioning jaw according to the present invention.

[0035] Figure 3 is the left view of the first positioning jaw on the main scale bar according to the present invention.

[0036] Figure 4 is the left view of the second positioning jaw on the vernier scale according to the present invention.

[0037] Figure 5 is the left view of the first limit jaw on the main scale bar according to the present invention.

[0038] Figure 6 is the left view of the second limit jaw on the vernier scale according to the present invention.

[0039] Figure 7It is a top view of the present invention when measuring and positioning the flap fixing member and the support back plate.

[0040] Figure 8 It is a top view of the present invention when positioning and installing the flap body.

[0041] Figure 9 Is Figure 8 The cross-sectional view taken along line A-A in

[0042] Figure 10 It is a three-dimensional view of the installation position of the flap member in the transverse bulkhead of a traditional container ship.

[0043] Figure 11 It is a top view of the traditional container ship's transverse bulkhead after the flap member is installed.

[0044] Figure 12 Is Figure 11 The cross-sectional view taken along line B-B in

[0045] Among them, the specific descriptions of the reference numerals are as follows: 1, main scale rod; 11, scale line; 2, vernier; 3, limit claw; 31, first limit claw; 32, second limit claw; 4, limit block; 41, first limit block; 42, second limit block; 5, positioning claw; 51, first positioning claw; 52, second positioning claw; 61, base; 62, positioning claw body; 7, first fastening screw; 8, second fastening screw; 9, flap member; 91, flap body; 92, hinge plate member; 93, flap fixing member; 931, flap fixing member installation center line; 94, support back plate; 10, hull structure. Specific Embodiments

[0046] In order to better understand the purpose, structure and function of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0047] In the description of the present invention, it should be noted that the positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. cited in this specification are based on the positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0048] Embodiment 1

[0049] As Figures 1 to 6As shown in the figure, this embodiment provides a fixed jaw pitch caliper for positioning and installing a flap member, including a caliper body and an auxiliary jaw group; the caliper body includes a main scale rod 1 and a vernier scale 2, the vernier scale 2 is sleeved on the main scale rod 1, can slide left and right along the main scale rod 1 and is locked and fixed on the main scale rod 1 by a first fastening screw 7, and is used to measure the opening width W of the hull structure 10.

[0050] An auxiliary jaw group is fixedly connected to the same side of the main scale rod 1 and the vernier scale 2 respectively. Each group of auxiliary jaw groups is vertically fixed at a position near the left end of the main scale rod 1 and the right end of the vernier scale 2. Specifically, each group of auxiliary jaw groups includes a limit jaw 3 and a positioning jaw 5.

[0051] The limit jaw 3 and the positioning jaw 5 are located on the same side. The measuring surface of the limit jaw 3 is arranged opposite to the measuring surface of the adjacent positioning jaw 5. A fixed jaw pitch is provided between the outer end faces of the adjacent limit jaws 3 and the outer end faces of the positioning jaws 5, and the distance of the fixed jaw pitch is equal to the distance from the flap fixing member 93 on the flap body 91 to the edge of the adjacent flap body 91. Since the distance from the hinge plate member 92 on the existing flap body 91 to the edge of the adjacent flap body 91 is the same, the position of the flap fixing member 93 matching the hinge plate member 92 on the hull structure 10 can be directly determined by the fixed jaw pitch, and at the same time, it also provides a basis for the positioning of the support backing plate 94 on the hull structure 10.

[0052] The limit jaw 3 is used for measurement and limit assistance during the positioning and installation of the diaphragm flap member 9, can quickly measure the distance between the two side edges of the opening of the hull structure 10 to verify and ensure the correct selection of the flap member 9, and assist in limiting the distance between the flap body 91 and the opening of the hull structure 10 to be always L. Generally, the value of L is 10 mm.

[0053] Specifically, the limit jaw 3 includes a first limit jaw 31 and a second limit jaw 32; the first limit jaw 31 is vertically fixed on the main scale rod 1 and there is a certain distance between it and the left edge of the main scale rod 1 to provide support between the caliper body and the hull structure 10, so as to ensure flatness. In a further preferred embodiment, a spirit level is also provided on the main scale rod 1 to improve the accuracy during positioning and installation; scale lines 11 are provided on the main scale rod 1, and the left end face of the first limit jaw 31 is flush with the zero scale reference line on the scale lines 11.

[0054] The second limiting claw 32 is vertically fixed to the right end of the vernier 2, and the right end face of the second limiting claw 32 is flush with the right edge of the vernier 2. The distance between the first limiting claw 31 and the second limiting claw 32 is the width W of the opening of the hull structure 10. That is, when the fixed-claw distance caliper is placed at the opening of the hull structure 10, the reading value of the scale line 11 corresponding to the right edge of the vernier 2 is the width of the opening of the hull structure 10.

[0055] A limiting block 4 is further provided on the limiting claw 3. The limiting block 4 is a rectangular body, and the width of the rectangular body is consistent with the gap width L between the two ends of the outer side of the flap body 91 and the edge of the adjacent hull structure 10 opening. The limiting block 4 has magnetism and is used to adsorb and fix the fixed-claw distance caliper on the hull structure 10, and at the same time is used to position the flap body 91 with the edge of the hull structure 10 opening as a reference; in this embodiment, the limiting block 4 is made of permanent magnet material.

[0056] The limiting block 4 includes a first limiting block 41 and a second limiting block 42. The first limiting block 41 and the second limiting block 42 have the same shape. The first limiting block 41 is arranged on the first limiting claw 31, and the second limiting block 42 is arranged on the second limiting claw 32. The left edge of the first limiting block 41 is flush with the left edge of the first limiting claw 31, the right edge of the second limiting block 42 is flush with the right edge of the second limiting claw 32, and the upper edges of the first limiting block 41 and the second limiting block 42 are both flush with the lower edge of the main scale bar 1.

[0057] The positioning claw 5 is used to directly obtain the positioning and installation position of the flap fixing member 93 on the hull structure 10. Specifically, the positioning claw 5 includes a first positioning claw 51 and a second positioning claw 52. The first positioning claw 51 is vertically fixed to the main scale bar 1, and the fixed-claw distance is provided between the outer end face of the first positioning claw 51 and the outer end face of the first limiting claw 31. The second positioning claw 52 is vertically fixed to the vernier 2, and the fixed-claw distance is provided between the outer end face of the second positioning claw 52 and the outer end face of the second limiting claw 32. The distance from the lower tip of each positioning claw 5 to the lower end face of the main scale bar 1 is consistent with the opening depth D of the hull structure 10.

[0058] During operation, by sliding the vernier scale 2 on the main scale rod 1, the left end face of the first limit claw 31 and the right end face of the second limit claw 32 are respectively in contact with the two side edges of the opening of the hull structure 10, and the connection line between the lower tips of the first positioning claw 51 and the second positioning claw 52 is parallel to the lower edge of the main scale rod 1. At this time, the distance between the right end face of the first positioning claw 51 and the left end face of the second positioning claw 52 is the distance between the two support plates 94 on the flap body 91.

[0059] In another embodiment, both the first positioning claw 51 and the second positioning claw 52 include a base 61 and a positioning claw body 62. The positioning claw body 62 is detachably fixed to one end of the base 61, and the other end of the base 61 is fixed to the caliper body.

[0060] Specifically, a through hole is provided on the positioning claw body 62 and is equipped with a second fastening screw 8. A threaded hole is provided on the base 61, and the threaded hole matches the external thread of the second fastening screw 8. The positioning claw body 62 is locked and fixed to the base 61 through the second fastening screw 8.

[0061] By providing a threaded hole on the base 61, the positioning claw body 62 can be quickly replaced and fixed without tools. The length of the positioning claw body 62 is determined according to the structural opening depth D of the hull structure 10 on different ship types, so that the distance from the tip of the positioning claw body 62 to the lower end face of the main scale rod 1 is the same as the structural opening depth D of the hull structure 10. The upper end face of the base 61 of the first positioning claw 51 is fixedly connected to the lower end face of the main scale rod 1, the upper end face of the base 61 of the second positioning claw 52 is fixedly connected to the lower end face of the vernier scale 2, and the lower end faces of the bases 61 of the first positioning claw 51 and the second positioning claw 52 are flush.

[0062] During operation, when the structural opening depth D changes on different ship types, the positioning claw body 62 fixed on the base 61 of the positioning claw 5 can be replaced. At the same time, by respectively arranging a rectangular limit block 4 made of permanent magnet material at the intersection of the main scale rod 1 and the edge of each limit claw 3 on the two limit claws 3, the general application requirements for the construction of various container ships with different specifications and structural forms can be more widely met.

[0063] Embodiment 2

[0064] As Figures 7 to 9 shown, this embodiment provides a method for using a fixed claw pitch caliper for positioning and installing a flap member using the first embodiment, including the following steps:

[0065] S1. Determine the lengths of the main scale rod 1 and the positioning claw 5 according to the opening size of the hull structure 10.

[0066] According to the width W and depth D of the opening of the hull structure 10, determine the length of the main scale rod 1 and the length of the positioning claw 5, so that the length of the main scale rod 1 is greater than the width W of the opening of the hull structure 10, thereby ensuring that the entire opening area of the hull structure 10 can be covered during measurement, ensuring the accurate acquisition of the data of the width W of the opening of the hull structure 10 and the precise positioning of the flap member 9, and making the length of the positioning claw 5 equal to the depth D of the opening of the hull structure 10, so as to ensure that during the measurement process, the positioning claw 5 can accurately touch the bottom of the opening of the hull structure 10, and improve the positioning accuracy of the flap fixing member 93 and the support backing plate 94 through one-to-one point-to-point correspondence.

[0067] In this embodiment, it is necessary to select a suitable fixed claw pitch caliper, and it may be necessary to carry multiple calipers with fixed claw pitches of different claw depths for the positioning claw 5 to meet on-site requirements; in another embodiment, when both the first positioning claw 51 and the second positioning claw 52 include a base 61 and a positioning claw body 62, when determining the length of the main scale rod 1, make the length of the main scale rod 1 greater than the maximum width of the opening of the hull structure 10, and then only need to detachably replace the positioning claw body 62 on the base 61, which can be applicable to different openings of the hull structure 10 on the same hull. At the same time, when not in use, the positioning claw body 62 can be detached, which is convenient for the storage of the main scale rod 1 and has portability and flexibility.

[0068] S2. As Figure 4 and Figure 5 shown, place the fixed claw pitch caliper at the opening of the hull structure 10 in the installation area of the flap member 9, and abut the first limiting claw 31 against one side edge of the opening of the hull structure 10.

[0069] S2-1. Orient the side of the main scale rod 1 with the auxiliary claw group towards the opening of the hull structure 10.

[0070] S2-2. At the same time, abut the first limiting claw 31 at the end of the main scale rod 1 against one side edge of the opening of the hull structure 10, so that the overall structure of the main scale rod 1 is not higher than the lower edge of the horizontal plane of the hull structure 10, and the outer side edge of the first limiting block 41 on the first limiting claw 31 is flush with one side edge of the opening of the hull structure 10.

[0071] S3. Slide the vernier 2 on the main scale rod 1 until the second limiting claw 32 abuts against the other side edge of the opening of the hull structure 10, and use the limiting block 4 to magnetically fix the fixed claw pitch caliper to the hull structure 10.

[0072] S3-1. Slide the vernier 2 until the second limiting claw 32 abuts against the other side edge of the opening of the hull structure 10.

[0073] S3-2. When the first limiting claw 31 and the second limiting claw 32 respectively abut against both sides of the opening edge of the hull structure 10, the fixed jaw distance caliper is magnetically adsorbed on the hull structure 10 by the magnetic limiting block 4, so that the outer side edge of the second limiting block 42 on the second limiting claw 32 is flush with the other edge of the opening of the hull structure 10, and the connection line between the lower tips of the first positioning claw 51 and the second positioning claw 52 is parallel to the lower edge of the main scale bar 1. At this time, the planes where the right end face of the first positioning claw 51 and the left end face of the second positioning claw 52 are located are respectively the installation center lines 931 of the two hinge plate members 92 on the flap body 91 corresponding to the flap fixing member.

[0074] In a further preferred embodiment, when a level is further provided on the main scale bar 1, it is determined whether the main scale bar 1 is horizontal in the adsorbed state through the level to ensure the flatness during the subsequent installation of the flap body 91.

[0075] S4. Use the first positioning claw 51 and the second positioning claw 52 to position and install the fixed support backing plate 94 and the flap fixing member 93 at the opening of the hull structure 10.

[0076] S4-1. Press the upper ends of the support backing plate 94 against the right side of the first positioning claw 51 and the left side of the second positioning claw 52 respectively. At this time, the support backing plate 94 is naturally perpendicular to the hull structure 10, and then the front end of the support backing plate 94 is fixedly connected to the hull structure 10.

[0077] S4-2. At the same time, fix the flap fixing member 93 on the hull structure 10 so that the center of the flap fixing member 93 is respectively aligned with the lower tips of the first positioning claw 51 and the second positioning claw 52.

[0078] When the fixed jaw distance caliper of the present application is magnetically adsorbed on the hull structure 10, there is no need for a special person to hold the fixed jaw distance caliper, and the surveyor can position and weld the support backing plate 94 and the flap fixing member 93 of the flap member 9 respectively at the positions specified by the corresponding positioning claws 5 on the hull structure 10.

[0079] S5. Use the limiting block 4 to position and install the flap body 91 at the opening of the hull structure 10.

[0080] S5-1. Place the flap body 91 between the two limiting blocks 4 on both sides of the fixed jaw distance caliper. At the same time, make the rear edge of the flap body 91 flush with the front edge of the main scale bar 1, and make the lower end face of the flap body 91 fit with the upper end face of the auxiliary claw group.

[0081] S5-2. Then, lock and fix the hinge plate member 92 on the flap body 91 to the flap fixing member 93 through fasteners to complete the positioning and installation of the flap body 91.

[0082] Since the width of the limit catch block 4 is designed to be equal to the gap L between the structure and the flap 91, when finally installing the flap body 91, the construction worker only needs to place the flap body 91 between the two limit catch blocks 4, so that the hinge plate member 92 on the flap body 91 can be accurately aligned with the hinge joint between the flap fixing parts 93, and the scale reading on the main scale rod 1 of the fixed jaw distance caliper can accurately reflect whether the size of the installed flap body 91 matches the opening of the hull structure 10.

[0083] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any changes or equivalent replacements can be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the present invention. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A fixed jaw distance caliper for positioning and installing a flap member, characterized in that: It includes a caliper body and an auxiliary claw group; The caliper body comprises a main ruler rod (1) and a vernier ruler (2); the vernier ruler (2) is sleeved on the main ruler rod (1) and can slide left and right along the main ruler rod (1) and be locked and fixed; the main ruler rod (1) is provided with scale lines (11); An auxiliary claw group is respectively provided on the same side of the main ruler (1) and the vernier ruler (2), and each group of the auxiliary claw groups includes a limit claw (3) and a positioning claw (5). The limit claw (3) and the positioning claw (5) are located on the same side. A fixed claw distance is provided between adjacent limit claws (3) and positioning claws (5), and the spacing of the fixed claw distance is equal to the distance from the flap fixing member (93) to the edge of the adjacent flap body (91). The distance from the lower tip of the positioning claw (5) to the lower end surface of the main ruler (1) is consistent with the opening depth of the hull structure (10). The limiting claw (3) is used to measure the distance between the two side edges of the structural opening on the hull structure (10) and assist in limiting, and the limiting claw (3) is provided with a limiting block (4), and the width of the limiting block (4) is consistent with the width of the gap from the two ends of the outer side of the flap body (91) to the opening edge of the adjacent hull structure (10), and the limiting block (4) is magnetic and is used to adsorb and fix the fixed claw distance caliper on the hull structure (10), and is also used to locate the position of the flap body (91) based on the opening edge of the hull structure (10), and the limiting claw (3) includes a first limiting claw (31) and a second limiting claw (32); the positioning claw (5) is used to locate the installation position of the flap fixing member (93) on the hull structure (10), and the positioning claw (5) includes a first positioning claw (51) and a second positioning claw (52).

2. A fixed jaw distance caliper for positioning and installing a flap member according to claim 1, characterized in that: The first limiting claw (31) is vertically fixed on the main ruler rod (1) and has a certain distance from the left edge of the main ruler rod (1); the left end face of the first limiting claw (31) is flush with the zero scale reference line on the scale line (11); the second limiting claw (32) is vertically fixed on the right end of the vernier ruler (2), and the right end face of the second limiting claw (32) is flush with the right edge of the vernier ruler (2); the distance between the first limiting claw (31) and the second limiting claw (32) is the width of the structural opening.

3. A fixed jaw distance caliper for positioning and installing a flap member according to claim 2, characterized in that: The limit card block (4) comprises a first limit card block (41) and a second limit card block (42); the first limit card block (41) is arranged on the first limit claw (31), and the second limit card block (42) is arranged on the second limit claw (32); the left edge of the first limit card block (41) is flush with the left edge of the first limit claw (31), the right edge of the second limit card block (42) is flush with the right edge of the second limit claw (32), and the upper edge of the first limit card block (41) and the upper edge of the second limit card block (42) are both flush with the lower edge of the main ruler (1).

4. A fixed jaw distance caliper for positioning and installing a flap member according to claim 3, characterized in that: The first positioning claw (51) is vertically fixed on the main ruler rod (1), and the fixed claw distance is provided between the outer end surface of the first positioning claw (51) and the outer end surface of the first limiting claw (31); the second positioning claw (52) is vertically fixed on the vernier ruler (2), and the fixed claw distance is provided between the outer end surface of the second positioning claw (52) and the outer end surface of the second limiting claw (32).

5. A fixed jaw distance caliper for positioning and installing a flap member according to claim 4, characterized in that: The first positioning claw (51) and the second positioning claw (52) both comprise a base (61) and a positioning claw body (62); the positioning claw body (62) is detachably fixed to one end of the base (61), and the other end of the base (61) is fixed to the caliper body.

6. A fixed jaw distance caliper for positioning and installing a flap member according to claim 5, characterized in that: The length of the positioning claw body (62) is determined according to the depth of the structural opening on different ship types, so that the distance from the tip of the positioning claw body (62) to the lower end surface of the main ruler (1) is the same as the depth of the structural opening.

7. A fixed jaw distance caliper for positioning and installing a flap member according to claim 6, characterized in that: The main ruler rod (1) is also provided with a level.

8. A method for using a fixed jaw distance caliper for positioning and installing a flap member, using the fixed jaw distance caliper for positioning and installing a flap member according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Determine the length of the main ruler (1) and the positioning claw (5) according to the opening size of the hull structure (10); S2, placing the fixed claw distance caliper at the opening of the hull structure (10) in the installation area of ​​the flap member (9), and making the first limiting claw (31) butt against the edge of one side of the opening of the hull structure (10); S3, sliding the vernier ruler (2) on the main ruler rod (1) until the second limit claw (32) abuts against the edge of the other side of the opening of the hull structure (10), and magnetically fix the fixed claw caliper to the hull structure (10) using the limit clamp block (4); S4, using the first positioning claw (51) and the second positioning claw (52) to position and install the support plate (94) and the flap fixing member (93); S5. Using the limit block (4), position and install the flap body (91).

9. A method for using a fixed jaw distance caliper for positioning and installing a flap member according to claim 8, characterized in that: The step S4 comprises the following specific steps: S4-1, placing the upper end of the supporting plate (94) against the right side of the first positioning claw (51) and the left side of the second positioning claw (52), respectively, and then fixing the front end of the supporting plate (94) to the hull structure (10); S4-2. At the same time, the flap fixing member (93) is fixed to the hull structure (10) so that the center of the flap fixing member (93) is aligned with the lower tip of the first positioning claw (51) and the lower tip of the second positioning claw (52).

10. A method for using a fixed jaw distance caliper for positioning and installing a flap member according to claim 8, characterized in that: The step S5 comprises the following specific steps: S5-1, placing the flap body (91) between the limit blocks (4) on both sides of the fixed jaw distance caliper, and at the same time, making the rear edge of the flap body (91) flush with the front edge of the main ruler (1), and making the lower end surface of the flap body (91) fit with the upper end surface of the auxiliary jaw group; S5-2. Then, the hinge plate component (92) on the flap body (91) is locked and fixed to the flap fixing member (93) by means of fasteners, thereby completing the positioning and installation of the flap body (91).

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