阅读说明：本技术 一种安装位置可调的抗剪防滑移连接副及方法 (Shear-resistant and slippage-resistant connecting pair with adjustable mounting position and method ) 是由 周俊亨 周亮 周正 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种安装位置可调的抗剪防滑移连接副,包括：被安装件、紧压垫片、以及对应被安装件设置在弧形混凝土结构中的预埋螺栓套；被安装件上设有用于调节安装位置的槽型孔,对应槽型孔贯穿紧压垫片上、下端面设有螺栓过孔；一抗剪螺栓插置于预埋螺栓套、槽型孔、螺栓过孔中驱使紧压垫片将被安装件压紧在弧形混凝土结构的弧形结构面上。本发明还公开了上述连接副的组装方法。本发明结构设计合理巧妙,成本低,被安装件具备安装位置调节功能；通过抗剪喇叭腔、增强抗剪锥段的配合,结合螺栓过孔与抗剪螺栓的圆柱约束段的配合,大幅提高本产品的抗剪效用截面积,避免了弧形混凝土结构的开裂；且能有效地保证弧形混凝土结构原有的力学性能。(The invention discloses a shear-resistant and anti-slip connecting pair with adjustable mounting positions, which comprises: the device comprises an installed part, a pressing gasket and an embedded bolt sleeve, wherein the embedded bolt sleeve is arranged in the arc-shaped concrete structure corresponding to the installed part; the installed piece is provided with a groove-shaped hole used for adjusting the installation position, and bolt through holes are arranged on the upper end surface and the lower end surface of the pressing gasket and penetrate through the corresponding groove-shaped hole; a shear bolt is inserted in the embedded bolt sleeve, the groove-shaped hole and the bolt through hole to drive the pressing gasket to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure. The invention also discloses an assembling method of the connecting pair. The invention has reasonable and ingenious structural design and low cost, and the installed piece has the function of adjusting the installation position; through the matching of the shear-resistant horn cavity and the reinforced shear-resistant conical section and the matching of the bolt through hole and the cylindrical restraint section of the shear-resistant bolt, the shear-resistant effective sectional area of the product is greatly improved, and the cracking of an arc-shaped concrete structure is avoided; and the original mechanical property of the arc concrete structure can be effectively ensured.)

1. The utility model provides a mounted position adjustable anti-shear antiskid connects vice which characterized in that includes: the installed part, the pressing gasket and the embedded bolt sleeve are arranged in the arc concrete structure at the position corresponding to the planned installation position of the installed part;

the installed piece is provided with a groove-shaped hole for adjusting the installation position, and bolt through holes are arranged on the upper end surface and the lower end surface of the pressing gasket corresponding to the groove-shaped hole;

and a shear bolt is inserted into the embedded bolt sleeve, the groove-shaped hole and the bolt through hole to drive the pressing gasket to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure.

2. The shear-resistant and anti-slip connection pair with adjustable installation positions of claim 1, wherein a plurality of first compression button teeth are arranged on the upper surface of the installed part, and a plurality of second compression button teeth are arranged on the lower surface of the compression gasket;

and the first pressing buckle teeth and the second pressing buckle teeth are arranged in a one-to-one correspondence manner.

3. The shearing-resistant and anti-sliding connection pair with the adjustable installation position as claimed in claim 1, wherein the shearing-resistant bolt comprises an external thread tension section, a cylindrical restraint section matched with the diameter of the bolt through hole and a tightening head used for providing pressure for the pressing gasket, which are sequentially arranged from bottom to top, and an internal thread tension cavity is formed in the embedded bolt sleeve;

the shear bolt is screwed in the embedded bolt sleeve through the external thread tensile section corresponding to the internal thread tensile cavity.

4. The anti-shearing and anti-sliding connection pair with the adjustable installation position according to claim 3, wherein a reinforced anti-shearing conical section is further arranged between the external thread tensile section and the cylindrical constraint section;

a shear-resistant horn cavity communicated with the internal thread tensile cavity is further formed in the embedded bolt sleeve;

the reinforced shear-resistant conical section is matched with the shear-resistant horn cavity.

5. The adjustable mounting position shear and slip resistant connection pair of claim 4, wherein the tightening head is an outer hexagonal head, an outer rectangular head, an inner hexagonal head, and may be provided with or without a shoulder.

6. The shear-resistant and anti-slip connection pair with adjustable installation positions of claim 4, wherein the diameter of the end, connected with the external thread tension-resistant section, of the reinforced shear-resistant conical section is smaller, and the diameter of the end, connected with the cylindrical restraint section, of the reinforced shear-resistant conical section is larger.

7. The shear-resistant and anti-slip connection pair with the adjustable installation position according to claim 6, wherein a connection transition section is further arranged between the reinforced shear-resistant conical section and the external thread tensile section;

the diameter of one end of the connecting transition section, which is connected with the external thread tensile section, is smaller, and the diameter of one end of the connecting transition section, which is connected with the reinforced shear-resistant conical section, is larger.

8. The shear-resistant and anti-slip connection pair with adjustable installation positions as claimed in claim 4, wherein a plurality of outer anchoring grooves and at least one rotation-stopping rib or a rotation-stopping protrusion block connected with the plurality of outer anchoring grooves are arranged outside the embedded bolt sleeve.

9. The installation position-adjustable shear and slip resistant connection pair according to claim 3, wherein the width of the short axis direction of the slot-shaped hole is matched with the diameter of the cylindrical restraint section of the shear bolt.

10. The assembling method of the anti-shearing and anti-sliding connection pair with the adjustable installation position is characterized by comprising the following steps of:

sequentially stacking the installed part and the pressing gasket on the arc-shaped structure surface of the arc-shaped concrete structure in a way of corresponding to the embedded bolt sleeves;

sequentially penetrating the shear bolts through bolt through holes of the pressing gaskets and the groove-shaped holes of the installed pieces and then inserting the shear bolts into the embedded bolt sleeves;

adjusting the installation position of the installed part along the shape of the groove-shaped hole;

the external thread tensile section of the shear bolt is screwed in the internal thread tensile cavity of the embedded bolt sleeve, the screwing head of the shear bolt extrudes a pressing gasket to the embedded bolt sleeve, and the pressing gasket is driven to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure.

Technical Field

The invention relates to the technical field of installation and connection of objects on an arc-shaped concrete structure, in particular to a shear-resistant and anti-sliding connection pair with adjustable installation position and a method.

Background

In the technical field of installation and connection of objects on an arc-shaped concrete structure, the traditional technology uses a common embedded bolt sleeve to fix a common standard bolt with a groove-shaped installation part of an adjusting hole, or adopts a method of embedding an arc-shaped metal installation groove channel in a position needing to be adjusted and fixing the installation part to a proper position outside the arc-shaped metal groove channel by using a T-shaped bolt.

When the traditional embedded plastic bolt sleeve and the common hexagonal bolt connecting pair resist the shear load generated by the radial displacement of the installation object by the shear resistance, the shear resistance sectional area of the common hexagonal bolt is limited by the rod part diameter of the bolt, and the shear resistance is limited; the arc-shaped mounting surface and the arc-shaped surface of the mounted part are usually difficult to be completely matched, and the capability of restraining the mounted part from sliding along the groove-shaped mounting adjusting hole by using the friction force generated by the pulling force of the bolt is weak; and because the concrete structure of the anchoring embedded plastic bolt sleeve is used for bearing the shear load transmitted by the installation object, the common hexagon bolt and the embedded plastic bolt sleeve is positioned in the depth range of the protective layer of the main reinforcement of the concrete structure, the main reinforcement of the concrete structure at the position can not provide more effective support for further improving the shear load, the outer diameter of the embedded plastic bolt sleeve is limited, the shear load can not be uniformly dispersed to the concrete structure with the larger outer diameter range than the embedded plastic bolt sleeve, and the concrete structure surface layer outside the embedded plastic bolt sleeve is easy to crack when the shear load is applied.

In addition, if the arc-shaped metal installation channel is pre-embedded in the range of the position to be adjusted, the method of fixing the installed part to the proper position outside the arc-shaped metal channel by using the T-shaped bolt is high in cost, the length of the metal channel needs to cover the size to be installed and adjusted, and the pre-embedded long metal channel has great weakening to the concrete structure; in addition, the T-shaped bolt adopted by the embedded metal channel and the T-shaped bolt connecting pair is difficult to be provided with a shear-resistant cylindrical structure with an enlarged diameter, and the connecting pair has weak shear resistance.

Disclosure of Invention

In order to solve the problems, the invention discloses a shear-resistant and anti-slip connecting pair with adjustable installation positions and a method.

The technical scheme adopted by the invention for realizing the purpose is as follows:

an installation position adjustable connection pair capable of shearing and sliding prevention comprises: the installed part, the pressing gasket and the embedded bolt sleeve are arranged in the arc concrete structure at the position corresponding to the planned installation position of the installed part; the installed piece is provided with a groove-shaped hole for adjusting the installation position, and bolt through holes are arranged on the upper end surface and the lower end surface of the pressing gasket corresponding to the groove-shaped hole; and a shear bolt is inserted into the embedded bolt sleeve, the groove-shaped hole and the bolt through hole to drive the pressing gasket to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure.

The upper surface of the installed part is provided with a plurality of first pressing buckle teeth, and the lower surface of the pressing gasket is provided with a plurality of second pressing buckle teeth; and the first pressing buckle teeth and the second pressing buckle teeth are arranged in a one-to-one correspondence manner.

The shear bolt comprises an external thread tensile section, a cylindrical restraint section and a tightening head, wherein the external thread tensile section, the cylindrical restraint section and the tightening head are sequentially arranged from bottom to top, the cylindrical restraint section is matched with the diameter of the bolt through hole, the tightening head is used for providing pressure for the pressing gasket, and an internal thread tensile cavity is formed in the embedded bolt sleeve; the shear bolt is screwed in the embedded bolt sleeve through the external thread tensile section corresponding to the internal thread tensile cavity.

A reinforced shear-resistant conical section is arranged between the external thread tensile section and the cylindrical constraint section; a shear-resistant horn cavity communicated with the internal thread tensile cavity is further formed in the embedded bolt sleeve; the reinforced shear-resistant conical section is matched with the shear-resistant horn cavity.

The tightening head may be an outer hexagonal head, an outer rectangular head, an inner hexagonal head, and the tightening head may be shouldered or not.

The diameter of one end of the reinforced shear-resistant conical section, which is connected with the external thread tensile section, is smaller, and the diameter of one end of the reinforced shear-resistant conical section, which is connected with the cylindrical restraint section, is larger.

A connecting transition section can be arranged between the reinforced shear-resistant conical section and the external thread tensile section; the diameter of one end of the connecting transition section, which is connected with the external thread tensile section, is smaller, and the diameter of one end of the connecting transition section, which is connected with the reinforced shear-resistant conical section, is larger.

And a plurality of anchoring outer grooves and at least one rotation stopping rib or rotation stopping protruding block connected with the anchoring outer grooves are arranged outside the embedded bolt sleeve.

The width of the short axis direction of the groove-shaped hole is matched with the diameter of the cylindrical restraint section of the shear bolt.

An assembling method of a shear and slip resistant connection pair with adjustable installation positions comprises the following steps:

sequentially stacking the installed part and the pressing gasket on the arc-shaped structure surface of the arc-shaped concrete structure in a way of corresponding to the embedded bolt sleeves;

sequentially penetrating the shear bolts through bolt through holes of the pressing gaskets and the groove-shaped holes of the installed pieces and then inserting the shear bolts into the embedded bolt sleeves;

adjusting the installation position of the installed part along the shape of the groove-shaped hole;

the external thread tensile section of the shear bolt is screwed in the internal thread tensile cavity of the embedded bolt sleeve, the screwing head of the shear bolt extrudes a pressing gasket to the embedded bolt sleeve, and the pressing gasket is driven to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure.

The invention has the beneficial effects that: the installation piece is reasonable and ingenious in structural design and low in cost, and the installed piece can move along the long axis direction of the groove-shaped hole to adjust the installation position of the installed piece through the arrangement of the groove-shaped hole; through the arrangement of the first pressing buckle tooth and the second pressing buckle tooth, the installed piece has an installation position adjusting function, and meanwhile, the installed piece is prevented from sliding along the long axis direction of the groove-shaped hole of the installed piece; in addition, through the cooperation of the shearing-resistant horn cavity and the shearing-resistant reinforcing conical section, the cooperation of the bolt through hole and the cylindrical restraint section of the shearing-resistant bolt is combined, the shearing-resistant effective sectional area of the product is greatly improved, so that the shearing-resistant efficiency of the product is greatly enhanced, the radial acting load applied to the position near the opening of the embedded bolt sleeve is dispersed, the concentrated load is prevented from being applied to the position of a relatively weak protective layer of the arc-shaped concrete structure, and the cracking of the position of the protective layer of the arc-shaped concrete structure when the product is subjected to shearing force is avoided. And because the metal channel is prevented from being installed in a large range, the weakening of the concrete structure is small, and the original mechanical property of the arc-shaped concrete structure can be effectively ensured.

The invention is further described with reference to the following detailed description and accompanying drawings.

Drawings

FIG. 1 is a schematic view of a use state of a shear-resistant and anti-slip connection pair with adjustable installation positions in an embodiment of the invention;

FIG. 2 is an exploded view of an adjustable mounting position of a shear and slip resistant connector assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a compression gasket in an embodiment of the invention;

FIG. 4 is a schematic structural view of a mounted member in an embodiment of the invention;

FIG. 5 is a schematic diagram of an internal structure of a pre-buried bolt sleeve according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an external structure of a pre-buried bolt sleeve according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a shear bolt according to an embodiment of the present invention.

Detailed Description