CN214081096U - Positioning device for forming shield segment steel reinforcement framework - Google Patents

Abstract

The embodiment of the utility model relates to a framework for steel reinforcement's processing technology field, concretely relates to be used for shield to construct fashioned positioner of section of jurisdiction framework for steel reinforcement, including the landing leg support frame, still include first positioning mechanism, second positioning mechanism and third positioning mechanism, first positioning mechanism establishes at the top of support frame and along the gliding sliding sleeve of the length direction of support frame, be used for making the fixed body of sliding sleeve and support frame fixed, be used for making the reinforcing bar at the location body of vertical orientation including the cover. The utility model discloses beneficial effect does: the utility model discloses first positioning mechanism's setting is convenient for adjust vertical direction bar diameter's distance, and the locking body can make first semi-ring and second semi-ring can open and close, easy operation, and first semi-ring and second semi-ring can be customized according to the diameter of reinforcing bar, are applicable to the reinforcing bar of different diameters, and second positioning mechanism and third positioning mechanism's setting are convenient for make the reinforcing bar in the location of horizontal direction, improve steel skeleton's machining efficiency.

Description

Positioning device for forming shield segment steel reinforcement framework

Technical Field

The utility model relates to a framework of steel reinforcement's processing technology field, concretely relates to be used for shield to construct fashioned positioner of section of jurisdiction framework of steel reinforcement.

Background

Along with the continuous development of urban construction scale, the development of subway and urban underground space and the transformation of urban water conservancy system are started in succession in each big city in China, wherein the shield construction technology is a construction method widely used for underground tunnel construction, shield segments are permanent lining structures of shield tunnels, the quality of the shield segments is directly related to the overall quality and safety of the tunnels, the waterproof performance and the durability of the tunnels are influenced, the shield segments are usually connected through a steel reinforcement framework, a wooden positioning mould is adopted in the traditional technology to position steel bars in the shield segment steel reinforcement framework, and along with the continuous abrasion in the shield segment steel reinforcement framework processing process, the notches of the wooden positioning mould are larger and larger, so that the positions of the steel bars are beyond limit, the shield segment steel reinforcement framework is hung into a model and is easy to collide with embedded parts; and, the notch is bigger and bigger, causes the reduction to reinforcing bar position location accuracy, can't guarantee shield segment framework's quality, and in addition, the interval that is located the reinforcing bar of vertical direction can't adjust at any time, consequently, needs a positioner who is used for shield segment framework of steel reinforcement shaping to overcome the emergence of above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the embodiment of the utility model provides a be used for shield to construct fashioned positioner of section of jurisdiction framework of steel reinforcement.

The purpose of the utility model is realized like this:

the utility model provides a be used for shield to construct fashioned positioner of section of jurisdiction framework of steel reinforcement, including the landing leg, with the top fixed connection's of landing leg support frame, still include the first positioning mechanism that just is used for making the reinforcing bar location of vertical direction with the top fixed connection of support frame, a second positioning mechanism and a third positioning mechanism for making the reinforcing bar of horizontal direction go on fixing a position, second positioning mechanism is used for the reinforcing bar that fixed length direction is the fore-and-aft direction, third positioning mechanism is used for the reinforcing bar that fixed length direction is left right direction, first positioning mechanism establishes at the top of support frame and the gliding sliding sleeve of length direction along the support frame including the cover, a fixed body for making sliding sleeve and support frame fixed, a location body for making the reinforcing bar fix a position in vertical direction.

Preferably, the positioning body comprises a first half ring fixedly connected with the side surface of the sliding sleeve through a connecting block, a second half ring movably connected with the right side surface of the first half ring through a connecting shaft, and a locking mechanism for fixedly connecting the other end of the first half ring with the other end of the second half ring.

Preferably, the locking mechanism includes a hook fixedly connected to the right end of the second half ring, and a locking body located at the left end of the first half ring and used for locking the hook.

Preferably, the locking body comprises a containing cavity, a first placing groove, a second placing groove, a first button, a first pressing plate, a second button and a second pressing plate, the containing cavity is located at the end portion of the first half ring and is provided with an outward opening, the first placing groove is communicated with the bottom of the containing cavity through a first channel, the second placing groove is communicated with the top of the containing cavity through a second channel, the first button is located in the first placing groove, the first pressing plate is fixedly connected with the upper surface of the first button and is fixedly connected with the upper surface of the first button through a first connecting rod, the second button is located in the second placing groove, the second pressing plate is fixedly connected with the lower surface of the second button through a second connecting rod, and the first pressing plate and the second.

Preferably, the first connecting rod is movably connected with the side wall of the accommodating cavity through the first baffle, and the second connecting rod is movably connected with the side wall of the accommodating cavity through the second baffle.

Preferably, the first button is connected with the upper surface of the first placing groove through the first spring, the second button is connected with the bottom of the second placing groove through the third spring, the second spring is sleeved on the first connecting rod, the fourth spring is sleeved on the second connecting rod, two ends of the second spring are fixedly connected with the first baffle and the first button respectively, and two ends of the fourth spring are fixedly connected with the second baffle and the second button respectively.

Preferably, the bottom of the sliding sleeve is provided with an opening.

Preferably, the fixing body comprises a screw rod in threaded connection with the side face of the sliding sleeve, and the end of the screw rod penetrates through the sliding sleeve and is in pressing contact with the supporting frame.

Preferably, the second positioning mechanism comprises a first transverse plate fixedly connected with the support frame at the bottom, and a first positioning groove located at the top of the first transverse plate and provided with an upward opening, and the length direction of the first transverse plate is in the left-right direction.

Preferably, the third positioning mechanism includes a second transverse plate located at the top of the first transverse plate, and a second positioning slot located at the top of the second transverse plate and having an upward opening.

The utility model discloses beneficial effect does: the utility model discloses first positioning mechanism's setting is convenient for adjust vertical direction bar diameter's distance, and the locking body can make first semi-ring and second semi-ring can open and close, easy operation, and first semi-ring and second semi-ring can be customized according to the diameter of reinforcing bar, are applicable to the reinforcing bar of different diameters, and second positioning mechanism and third positioning mechanism's setting are convenient for make the reinforcing bar in the location of horizontal direction, improve steel skeleton's machining efficiency, alleviate workman's work burden.

Drawings

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

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

FIG. 3 is an enlarged schematic view of portion A;

fig. 4 is a schematic structural view illustrating the opening of the fixing ring of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B;

fig. 6 is a left side view of the first positioning mechanism of the present invention;

in the figure: landing leg 1, support frame 2, first positioning mechanism 3, first diaphragm 4, first constant head tank 5, the first body of rod 6, the second body of rod 7, second diaphragm 8, second constant head tank 9, sliding sleeve 10, screw rod 11, the location body 12, first semicircle 13, second semicircle 14, connecting shaft 15, pothook 16, hold the chamber 17, first passageway 18, second passageway 19, first standing groove 20, second standing groove 21, first button 22, first spring 23, first connecting rod 24, first stripper plate 25, first baffle 26, second spring 27, second button 28, third spring 29, second connecting rod 30, second stripper plate 31, second baffle 32, fourth spring 33, opening 34, connecting block 35.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, 2, 5 and 6, a positioning device for forming a shield segment steel bar framework comprises a supporting leg 1, a supporting frame 2 fixedly connected with the top of the supporting leg 1, a first positioning mechanism 3 fixedly connected with the top of the supporting frame 2 and used for positioning steel bars in the vertical direction, a second positioning mechanism and a third positioning mechanism used for positioning the steel bars in the horizontal direction, wherein the second positioning mechanism is used for the steel bars in the front-back direction with fixed length, the third positioning mechanism is used for the steel bars in the left-right direction with fixed length, the second positioning mechanism and the third positioning mechanism are convenient for fixing the steel bars in the horizontal direction, the labor intensity of workers is reduced, the steel bars are prevented from falling off in the binding or welding process, and the first positioning mechanism 3 comprises a sliding sleeve 10, a sliding sleeve and a sliding sleeve, wherein the sliding sleeve is sleeved on the top of the supporting frame 2 and slides along the length direction of the supporting frame 2, A the location body 12 for making the fixed body of sliding sleeve 10 and support frame 2, being used for making the reinforcing bar fix a position at vertical orientation, the location body 12 is convenient for fix the reinforcing bar of vertical orientation to make the reinforcing bar of vertical orientation and the reinforcing bar of horizontal direction carry out welded fastening, the bottom of sliding sleeve 10 is equipped with opening 34, and the sliding sleeve 10 of being convenient for passes through the stiffener on the support frame 2, thereby adjusts the distance between two adjacent vertical orientation reinforcing bars, and it is convenient to adjust, improves the efficiency of construction, and can be used to different projects, and the high-usage.

As shown in fig. 3 and 4, the positioning body 12 includes a first half ring 13 fixedly connected to a side surface of the sliding sleeve 10 by welding through a connecting block 35, a second half ring 14 movably connected to a right side surface of the first half ring 13 by a connecting shaft 15, and a locking mechanism for fixedly connecting the other end of the first half ring 13 to the other end of the second half ring 14, wherein the first half ring 13 and the second half ring 14 form a fixed ring, vertical steel bars are located in the fixed ring and fixed, and the first half ring 13 and the second half ring 14 can be sized according to the diameter of the steel bars, i.e. suitable for steel bars of different diameters. The locking mechanism comprises a hook 16 fixedly connected with the right end of the second half ring 14 through welding and a locking body which is positioned at the left end of the first half ring 13 and used for locking the hook 16. The locking body comprises an accommodating cavity 17, a first placing groove 20, a second placing groove 21, a first press button 22, a first pressing plate 25, a second pressing plate 28 and a second pressing plate 31, the accommodating cavity 17 is located at the end portion of the first semi-ring 13, the accommodating cavity 17 is opened outwards, the first placing groove 20 is communicated with the bottom of the accommodating cavity 17 through a first channel 18, the second placing groove 21 is communicated with the top of the accommodating cavity 17 through a second channel 19, the first press button 20 is located in the first placing groove 20, the first pressing plate 25 is fixedly connected with the upper surface of the first press button 22 and fixedly connected with the upper surface of the first press button 24 through a first connecting rod 24, the second press button 28 is located in the second placing groove 21, the second pressing plate 31 is fixedly connected with the lower surface of the second press button 28 through a second connecting rod 30, and the first pressing plate 25 and the second pressing plate 31 are both located in the accommodating cavity 17. The first connecting rod 24 is movably connected with the side wall of the accommodating cavity 17 through the first baffle 26, the second connecting rod 30 is movably connected with the side wall of the accommodating cavity 17 through the second baffle 32, and the first baffle 26 and the second baffle 32 are respectively provided with an opening through which the first connecting rod 24 and the second connecting rod 30 can pass, so that the first connecting rod 24 slides relative to the first baffle 26, and the second connecting rod 30 slides relative to the second baffle 32. The first button 22 is connected with the upper surface of the first placing groove 20 through a first spring 23, the second button 28 is connected with the bottom of the second placing groove 21 through a third spring 29, a second spring 27 is sleeved on the first connecting rod 24, a fourth spring 33 is sleeved on the second connecting rod 30, two ends of the second spring 27 are fixedly connected with the first baffle 26 and the first button 22 respectively, two ends of the fourth spring 33 are fixedly connected with the second baffle 32 and the second button 28 respectively, when a steel bar in the vertical direction is placed in the first semi-ring 13 and the second semi-ring 14 need to be locked, the first button 22 is pressed upwards, the second button 28 is pressed downwards, the first pressing plate 25 and the second pressing plate 31 move upwards and downwards respectively and separate, at the moment, the hook 16 is inserted between the first pressing plate 25 and the second pressing plate 31 in the accommodating cavity 17, when the first button 22 and the second button 28 are released, the first pressing plate 25 and the second pressing plate 31 clamp and fix the hooks 16 due to the forces of the first spring 23, the second spring 27, the third spring 29 and the fourth spring 33, and the first half ring 13 and the second half ring 14 are fixed firmly.

The fixed body includes the screw rod 11 with the side threaded connection of sliding sleeve 10, and the tip of screw rod 11 passes sliding sleeve 10 and with 2 extrusion contact of support frame, according to the distance between the vertical direction reinforcing bar, twists screw rod 11, makes sliding sleeve 10 slide on support frame 2, and when the distance between two adjacent locating body 12 accords with the distance between the reinforcing bar, twists screw rod 11, makes the tip of screw rod 11 and 2 extrusion contact of support frame, then sliding sleeve 10 is fixed with support frame 2.

The second positioning mechanism comprises a first transverse plate 4 fixedly connected with the support frame 2 at the bottom, and a first positioning groove 5 located at the top of the first transverse plate 4 and provided with an upward opening, wherein the length direction of the first transverse plate 4 is in the left-right direction. Third positioning mechanism is including the second diaphragm 8 that is located the top of first diaphragm 4, the top that is located second diaphragm 8 and the ascending second constant head tank 9 of opening, and first diaphragm 4 and second diaphragm 8 homoenergetic adopt the steel sheet, reduce the reinforcing bar to the wearing and tearing of first diaphragm 4 and second diaphragm 8, avoid the location inaccuracy of reinforcing bar.

Example 2:

as shown in the figures 1, 2 and 5, the positioning device for forming the shield segment steel bar framework comprises a supporting leg 1, a supporting frame 2 fixedly connected with the top of the supporting leg 1, a first positioning mechanism 3 fixedly connected with the top of the supporting frame 2 and used for positioning steel bars in the vertical direction, a second positioning mechanism and a third positioning mechanism used for positioning the steel bars in the horizontal direction, wherein the second positioning mechanism is used for fixing the steel bars in the front-back direction at a fixed length, the third positioning mechanism is used for fixing the steel bars in the left-right direction at a fixed length, the second positioning mechanism and the third positioning mechanism are convenient for fixing the steel bars in the horizontal direction, the labor intensity of workers is reduced, the steel bars are prevented from falling off in the binding or welding process, and the first positioning mechanism 3 comprises a sliding sleeve 10 which is sleeved at the top of the supporting frame 2 and slides along the length direction of the supporting frame 2, A the location body 12 for making the fixed body of sliding sleeve 10 and support frame 2, being used for making the reinforcing bar fix a position at vertical orientation, the location body 12 is convenient for fix the reinforcing bar of vertical orientation to make the reinforcing bar of vertical orientation and the reinforcing bar of horizontal direction carry out welded fastening, the bottom of sliding sleeve 10 is equipped with opening 34, and the sliding sleeve 10 of being convenient for passes through the stiffener on the support frame 2, thereby adjusts the distance between two adjacent vertical orientation reinforcing bars, and it is convenient to adjust, improves the efficiency of construction, and can be used to different projects, and the high-usage.

As shown in fig. 3 and 4, the positioning body 12 includes a first half ring 13 fixedly connected to a side surface of the sliding sleeve 10 by welding through a connecting block 35, a second half ring 14 movably connected to a right side surface of the first half ring 13 by a connecting shaft 15, and a locking mechanism for fixedly connecting the other end of the first half ring 13 to the other end of the second half ring 14, wherein the first half ring 13 and the second half ring 14 form a fixed ring, vertical steel bars are located in the fixed ring and fixed, and the first half ring 13 and the second half ring 14 can be sized according to the diameter of the steel bars, i.e. suitable for steel bars of different diameters. The locking mechanism comprises a hook 16 fixedly connected with the right end of the second half ring 14 through welding and a locking body which is positioned at the left end of the first half ring 13 and used for locking the hook 16. The locking body comprises an accommodating cavity 17, a first placing groove 20, a second placing groove 21, a first press button 22, a first pressing plate 25, a second pressing plate 28 and a second pressing plate 31, the accommodating cavity 17 is located at the end portion of the first semi-ring 13, the accommodating cavity 17 is opened outwards, the first placing groove 20 is communicated with the bottom of the accommodating cavity 17 through a first channel 18, the second placing groove 21 is communicated with the top of the accommodating cavity 17 through a second channel 19, the first press button 20 is located in the first placing groove 20, the first pressing plate 25 is fixedly connected with the upper surface of the first press button 22 and fixedly connected with the upper surface of the first press button 24 through a first connecting rod 24, the second press button 28 is located in the second placing groove 21, the second pressing plate 31 is fixedly connected with the lower surface of the second press button 28 through a second connecting rod 30, and the first pressing plate 25 and the second pressing plate 31 are both located in the accommodating cavity 17. The first connecting rod 24 is movably connected with the side wall of the accommodating cavity 17 through the first baffle 26, the second connecting rod 30 is movably connected with the side wall of the accommodating cavity 17 through the second baffle 32, and the first baffle 26 and the second baffle 32 are respectively provided with an opening through which the first connecting rod 24 and the second connecting rod 30 can pass, so that the first connecting rod 24 slides relative to the first baffle 26, and the second connecting rod 30 slides relative to the second baffle 32. The first button 22 is connected with the upper surface of the first placing groove 20 through a first spring 23, the second button 28 is connected with the bottom of the second placing groove 21 through a third spring 29, a second spring 27 is sleeved on the first connecting rod 24, a fourth spring 33 is sleeved on the second connecting rod 30, two ends of the second spring 27 are fixedly connected with the first baffle 26 and the first button 22 respectively, two ends of the fourth spring 33 are fixedly connected with the second baffle 32 and the second button 28 respectively, when a steel bar in the vertical direction is placed in the first semi-ring 13 and the second semi-ring 14 need to be locked, the first button 22 is pressed upwards, the second button 28 is pressed downwards, the first pressing plate 25 and the second pressing plate 31 move upwards and downwards respectively and separate, at the moment, the hook 16 is inserted between the first pressing plate 25 and the second pressing plate 31 in the accommodating cavity 17, when the first button 22 and the second button 28 are released, the first pressing plate 25 and the second pressing plate 31 clamp and fix the hooks 16 due to the forces of the first spring 23, the second spring 27, the third spring 29 and the fourth spring 33, and the first half ring 13 and the second half ring 14 are fixed firmly.

The fixed body includes the screw rod 11 with the side threaded connection of sliding sleeve 10, and the tip of screw rod 11 passes sliding sleeve 10 and with 2 extrusion contact of support frame, according to the distance between the vertical direction reinforcing bar, twists screw rod 11, makes sliding sleeve 10 slide on support frame 2, and when the distance between two adjacent locating body 12 accords with the distance between the reinforcing bar, twists screw rod 11, makes the tip of screw rod 11 and 2 extrusion contact of support frame, then sliding sleeve 10 is fixed with support frame 2.

The second positioning mechanism comprises a first transverse plate 4 fixedly connected with the support frame 2 at the bottom, and a first positioning groove 5 located at the top of the first transverse plate 4 and provided with an upward opening, wherein the length direction of the first transverse plate 4 is in the left-right direction. Third positioning mechanism is including the second diaphragm 8 that is located the top of first diaphragm 4, the top that is located second diaphragm 8 and the ascending second constant head tank 9 of opening, and first diaphragm 4 and second diaphragm 8 homoenergetic adopt the steel sheet, reduce the reinforcing bar to the wearing and tearing of first diaphragm 4 and second diaphragm 8, avoid the location inaccuracy of reinforcing bar.

Landing leg 1 adopts telescopic link structure, landing leg 1 includes the first body of rod 6, the second body of rod 7 that the direction of height of the first body of rod 6 removed is just followed to the bottom cover in the first body of rod 6, be located the screw hole on the first body of rod 6 and the second body of rod 7, with screw hole threaded connection and make the bolt assembly of the first body of rod 6 and the 7 fixed connection of the second body of rod, the first body of rod 6 is located vertical direction, the inside of the first body of rod 6 is equipped with and makes the second body of rod 7 pass through and the ascending logical groove of opening, through adjusting the distance between the 6 tops of the first body of rod and the 7 tops of the second body of rod, thereby the height of adjustment landing leg 1, adjust the height of whole device promptly, application range is wide.

The utility model discloses first positioning mechanism's setting is convenient for adjust vertical direction bar diameter's distance, and buckle mechanism can make first semi-ring and second semi-ring can open and close, easy operation, and first semi-ring and second semi-ring can be customized according to the diameter of reinforcing bar, are applicable to the reinforcing bar of different diameters, and second positioning mechanism and third positioning mechanism's setting are convenient for make the reinforcing bar in the location of horizontal direction, improve steel skeleton's machining efficiency, alleviate workman's work burden.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they 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 according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, 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, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a be used for shield to construct fashioned positioner of section of jurisdiction framework of steel reinforcement, include the landing leg, with the top fixed connection's of landing leg support frame, its characterized in that: still include with the top fixed connection of support frame and be used for making the first positioning mechanism of the reinforcing bar location of vertical direction, a second positioning mechanism and a third positioning mechanism for making the reinforcing bar of horizontal direction go on fixing a position, the second positioning mechanism is used for the reinforcing bar that fixed length direction is the fore-and-aft direction, the third positioning mechanism is used for the reinforcing bar that fixed length direction is left right direction, first positioning mechanism establishes at the top of support frame and along the gliding sliding sleeve of length direction of support frame including the cover, a fixed body for making sliding sleeve and support frame fixed, a locating body for making the reinforcing bar fix a position in vertical direction.

2. The positioning device for forming the shield segment steel reinforcement framework according to claim 1, characterized in that: the positioning body comprises a first half ring fixedly connected with the side surface of the sliding sleeve through a connecting block, a second half ring movably connected with the right side surface of the first half ring through a connecting shaft, and a locking mechanism used for fixedly connecting the other end of the first half ring with the other end of the second half ring.

3. The positioning device for forming the shield segment steel reinforcement framework according to claim 2, characterized in that: the locking mechanism comprises a hook fixedly connected with the right end of the second half ring and a locking body which is positioned at the left end of the first half ring and is used for locking the hook.

4. The positioning device for forming the shield segment steel reinforcement framework according to claim 3, characterized in that: the locking body comprises a containing cavity, a first placing groove, a second placing groove, a first button, a first extrusion plate, a second button and a second extrusion plate, the containing cavity is located at the end portion of the first half ring, the containing cavity is provided with an outward opening, the first placing groove is communicated with the bottom of the containing cavity through a first channel, the second placing groove is communicated with the top of the containing cavity through a second channel, the first button is located in the first placing groove, the first extrusion plate is fixedly connected with the upper surface of the first button and fixedly connected with the first connection rod, the second button is located in the second placing groove, the second extrusion plate is fixedly connected with the lower surface of the second button through a second connection rod, and the first extrusion plate and the second extrusion plate are located in the containing cavity.

5. The positioning device for forming the shield segment steel reinforcement framework according to claim 4, wherein: the first connecting rod is movably connected with the side wall of the accommodating cavity through the first baffle, and the second connecting rod is movably connected with the side wall of the accommodating cavity through the second baffle.

6. The positioning device for forming the shield segment steel reinforcement framework according to claim 4, wherein: the first button is connected with the upper surface of the first placing groove through the first spring, the second button is connected with the bottom of the second placing groove through the third spring, the second spring is sleeved on the first connecting rod, the fourth spring is sleeved on the second connecting rod, two ends of the second spring are fixedly connected with the first baffle and the first button respectively, and two ends of the fourth spring are fixedly connected with the second baffle and the second button respectively.

7. The positioning device for forming the shield segment steel reinforcement framework according to claim 1, characterized in that: the bottom of the sliding sleeve is provided with an opening.

8. The positioning device for forming the shield segment steel reinforcement framework according to claim 1, characterized in that: the fixed body comprises a screw rod in threaded connection with the side face of the sliding sleeve, and the end part of the screw rod penetrates through the sliding sleeve and is in extrusion contact with the supporting frame.

9. The positioning device for forming the shield segment steel reinforcement framework according to claim 1, characterized in that: the second positioning mechanism comprises a first transverse plate fixedly connected with the bottom of the second positioning mechanism and a first positioning groove located at the top of the first transverse plate and provided with an upward opening, and the length direction of the first transverse plate is in the left-right direction.

10. The positioning device for forming the shield segment steel reinforcement framework according to claim 1, characterized in that: the third positioning mechanism comprises a second transverse plate positioned at the top of the first transverse plate and a second positioning groove positioned at the top of the second transverse plate and provided with an upward opening.

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