Back bolt, back bolt connecting device applying back bolt and dry hanging mounting system

Abstract

The utility model discloses a back bolt and a back bolt connecting device and a dry hanging installation system applying the back bolt, the back bolt comprises a back bolt body and a chuck piece sleeved on the periphery of the back bolt body, and a plurality of protrusions are arranged on one end face, far away from the back bolt body, of the chuck piece. The back bolt connecting device comprises a back bolt piece, a fastener and a connecting bolt, and the back bolt piece is the back bolt. The dry hanging installation system comprises a composite board and an ear hanging piece, and the ear hanging piece is connected with the composite board through a back bolt connecting device. The back bolt connecting device is the back bolt connecting device. According to the back bolt, the inverted claw-shaped piece is additionally arranged on the basis of the back bolt body, the back bolt body of the back bolt is implanted into the back face of a panel plate, the inverted claw-shaped piece is anchored together with reinforcing plates such as an aluminum honeycomb plate arranged on the back face of the panel, bidirectional stress is achieved, the drawing force of the back bolt is greatly improved, and then the safety performance of the plate is improved. The back bolt connecting device applies the back bolt and has the advantage of being good in anchoring effect.

Description

Technical Field

[0001] The utility model relates to the technical field of dry hanging installation, and particularly relates to a back bolt, a back bolt connecting device applying the same, and a dry hanging installation system. Background Art

[0002] A curtain wall is a lightweight wall with a decorative effect commonly used in modern large-scale and high-rise buildings, and belongs to a building enclosure structure that does not bear the load of the main structure. Dry hanging curtain wall is a new construction technology in contemporary finishing material decoration. In this method, the panel is directly hung on the wall or hung on the steel frame by dry hanging components, and grouting and pasting are no longer required. Dry hanging can be divided into ordinary type and open type according to whether the panel joints are sealed. The open type means that no sealant is applied between the panel plates compared with the ordinary type. Dry hanging can also be divided into: plug-in type, grooving type, back bolt type, etc. Among them, the back bolt type is widely used due to its safety and reliability.

[0003] The steps of back bolt type dry hanging are roughly as follows: fix through a stainless steel back bolt and an aluminum alloy hook, and then fix the aluminum alloy hook on the hook seat to realize the fixation of the stone material.

[0004] As shown in the Chinese invention patent with the application number 201310064696.X, the installation principle of the traditional back bolt is to process a back bolt hole with a large inner and small outer diameter on the plate. After the back bolt is implanted, it is stressed by mechanical anchoring. The magnitude of the back bolt pulling force mainly depends on the depth of the expanded hole. Therefore, to achieve a stable effect, it is required that the plate has sufficient thickness. However, the thickness of panels such as rock slabs on the current market is relatively thin. To enhance the strength, generally, the rock slab is combined with an aluminum honeycomb to achieve this. However, due to the insufficient depth of the back bolt hole, even the composite plate cannot solve the problem of limited force bearing of the back bolt, and the safety performance is poor. Content of the Utility Model

[0005] According to one aspect of the present utility model, a brand-new back bolt with a simple structure, low cost, and high safety is provided.

[0006] The back bolt includes a back bolt body and a chuck member sleeved on the outer periphery of the back bolt body. Several protrusions are arranged on one end face of the chuck member away from the back bolt body.

[0007] Thus, the present utility model discloses a back bolt with a brand-new structure. On the basis of the back bolt body, an inverted claw-shaped member is added. The claw-shaped member is composed of a chuck member and protrusions. When it is applied to a composite plate, the back bolt body of the back bolt is implanted into the back of the panel plate, and the inverted claw-shaped member is anchored together with a reinforcing plate such as an aluminum honeycomb plate arranged on the back of the panel, and is stressed in two directions, greatly improving the pulling force of the back bolt, and further increasing the safety performance of the composite plate.

[0008] In some embodiments, the protrusions are provided at the outer peripheral edge of the chuck member. Thus, the anchoring effect is good.

[0009] In some embodiments, a plurality of protrusions are circumferentially and arrayedly distributed along the center of the chuck member.

[0010] In some embodiments, the width of the protrusion gradually decreases from the root to the top. Thus, it is convenient to buckle into the plate.

[0011] In some embodiments, the expansion bolt body includes an expansion bolt head and a connection head. The connection head is sleeved on the outer periphery of one end of the expansion bolt head close to the chuck member, and the chuck member is sleeved on the outer periphery of the connection head.

[0012] In some embodiments, a threaded connection hole is provided at the centers of the expansion bolt head and the connection head. Thus, it is convenient to realize the threaded connection with the connection bolt.

[0013] In some embodiments, a convex portion that expands outwards is formed at one end of the expansion bolt head away from the chuck member. Thus, it can cooperate with the connection bolt to realize the limit fit with the expansion bolt hole.

[0014] In some embodiments, a slot is provided at one end of the expansion bolt head away from the chuck member. The number of slots is several, and the plurality of slots divide the head portion of the expansion bolt head into multiple parts. Thus, under the action of the connection bolt, the head portion of the expansion bolt head can expand outwards, and then be limited and anchored with the expansion bolt hole.

[0015] According to another aspect of the present invention, an expansion bolt connection device is further provided, which includes an expansion bolt member, a fastener, and a connection bolt. The connection bolt is sleeved on the expansion bolt member, the fastener is sleeved on the connection bolt, both the fastener and the expansion bolt member are in threaded cooperation with the connection bolt, the expansion bolt member is the above-mentioned expansion bolt, and the expansion bolt body is in threaded cooperation with the connection bolt.

[0016] Thus, the expansion bolt connection device applies the above-mentioned expansion bolt and has the advantage of good anchoring effect compared with the traditional expansion bolt connection device.

[0017] According to still another aspect of the present invention, a dry hanging installation system is further provided, which at least includes:

[0018] A composite board, including a panel and a reinforcing board provided on the back surface of the panel;

[0019] An ear hanger, which is connected to the composite board through the expansion bolt connection device;

[0020] The expansion bolt connection device is the above-mentioned expansion bolt connection device;

[0021] A back bolt hole is provided on the back surface of the panel;

[0022] The expansion bolt body of the expansion bolt connection device is matched with the back bolt hole;

[0023] The chuck part of the back bolt connection device cooperates with the protrusion and the reinforcement plate.

[0024] Thus, the dry-hanging installation system of the present utility model applies the above-mentioned back bolt. This back bolt adds an inverted claw-shaped part on the basis of the traditional back bolt. The back bolt body is implanted into the panel, and the inverted claw-shaped part is anchored together with a reinforcement plate such as an aluminum honeycomb panel. With two-way force, the pulling force is greatly improved, and the safety performance of the dry-hanging installation system is increased. This dry-hanging installation system can cooperate with columns and keels to achieve back bolt dry-hanging installation of panels with thicknesses of 9mm, 12mm, 15mm, etc., solving the problems of poor stability and poor safety of the traditional back bolt dry-hanging system.

[0025] The beneficial effects of the present utility model:

[0026] The present utility model discloses a back bolt with a brand-new structure. On the basis of the back bolt body, an inverted claw-shaped part is added. This claw-shaped part consists of a chuck part and a protrusion. It is applied to the dry-hanging system of composite plates. The back bolt body of this back bolt is implanted into the back of the panel board, and the inverted claw-shaped part is anchored together with a reinforcement plate such as an aluminum honeycomb panel arranged on the back of the panel. With two-way force, the pulling force of the back bolt is greatly improved, and further the safety performance of the board is increased.

[0027] The back bolt connection device applies the above-mentioned upper back bolt and has the advantage of good anchoring effect compared with the traditional back bolt connection device.

[0028] The dry-hanging installation system of the present utility model applies the above-mentioned back bolt. This back bolt adds an inverted claw-shaped part on the basis of the traditional back bolt. The back bolt body is implanted into the panel, and the inverted claw-shaped part is anchored together with a reinforcement plate such as an aluminum honeycomb panel. With two-way force, the pulling force is greatly improved, and the safety performance of the board is increased. This dry-hanging installation system can cooperate with columns and keels to achieve back bolt dry-hanging installation of panels with thicknesses of 9mm, 12mm, 15mm, etc., solving the problems of poor stability and poor safety of the traditional back bolt dry-hanging system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural schematic diagram of the back bolt in Embodiment 1 of the present utility model.

[0030] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the back bolt shown in another direction.

[0031] Figure 3 is Figure 1 a top view structural schematic diagram of the back bolt shown.

[0032] Figure 4 is Figure 3 a sectional structural schematic diagram of the back bolt shown in the A-A direction.

[0033] Figure 5 It is a schematic perspective view of the back bolt connection device according to Embodiment 2 of the present utility model.

[0034] Figure 6 It is a schematic cross-sectional view of the dry-hanging installation system according to Embodiment 3 of the present utility model in the longitudinal direction.

[0035] Figure 7 It is Figure 6 An enlarged schematic view of part B of the dry-hanging installation system shown.

[0036] Figure 8 It is Figure 6 A schematic top view of the dry-hanging installation system shown.

[0037] Figure 9 It is a schematic top view of the back bolt according to Embodiment 4 of the present utility model.

[0038] Reference numerals in the figure: 1 - longitudinal column; 2 - transverse keel; 3 - L-shaped hanging piece; 4 - first fastening assembly; 5 - second fastening assembly; 6 - composite board; 7 - ear hanging piece; 8 - back bolt connection device; 9 - gasket; 61 - panel; 62 - reinforcing plate; 81 - back bolt part; 82 - fastener; 83 - connecting bolt; 811 - back bolt body; 812 - chuck part; 8111 - back bolt head; 8112 - connecting head; 8113 - threaded connection hole; 8121 - protrusion; 8111a - protrusion part; 8111b - slot. Detailed implementation manners

[0039] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0040] Embodiment 1

[0041] Figures 1-4 It schematically shows a back bolt according to an embodiment of the present utility model.

[0042] As Figures 1-4 shown, the back bolt is a brand-new back bolt with simple structure, low cost and high safety.

[0043] The back bolt includes a back bolt body 811 and a chuck part 812 sleeved on the outer periphery of the back bolt body 811. A plurality of protrusions 8121 are provided on one end face of the chuck part 812 away from the back bolt body 811.

[0044] The protrusions 8121 are arranged at the outer peripheral edge of the chuck part 812. Thus, the anchoring effect is good.

[0045] The plurality of protrusions 8121 are distributed in a circumferential array along the center of the chuck part 812.

[0046] Preferably, there are three protrusions 8121 in this embodiment.

[0047] The width of the protrusion 8121 gradually decreases from the root to the top. Thus, it is convenient to buckle into the plate.

[0048] The expansion bolt body 811 includes an expansion bolt head 8111 and a connection head 8112. The connection head 8112 is sleeved on the outer periphery of one end of the expansion bolt head 8111 close to the chuck member 812, and the chuck member 812 is sleeved on the outer periphery of the connection head 8112.

[0049] A threaded connection hole 8113 is provided at the centers of the expansion bolt head 8111 and the connection head 8112. Thus, it is convenient to realize the threaded connection with the connection bolt 83.

[0050] Preferably, the threaded connection holes 8113 in this embodiment are respectively provided in the middle parts of the expansion bolt head 8111 and the connection head 8112 and have the same aperture.

[0051] One end of the expansion bolt head 8111 away from the chuck member 812 forms a protrusion 8121 part that expands outwards. Thus, it can cooperate with the connection bolt 83 to realize the limit fit with the expansion bolt hole.

[0052] One end of the expansion bolt head 8111 away from the chuck member 812 is provided with a plurality of slots 8111b. The plurality of slots 8111b divide the head part of the expansion bolt head 8111 into multiple parts. Thus, the arrangement of the slots 8111b makes the head of the expansion bolt head 8111 have a certain elasticity. Under the action of the connection bolt 83, the head of the expansion bolt head 8111 can expand outwards, and then be limited and anchored with the expansion bolt hole.

[0053] Preferably, there are 4 slots 8111b in this embodiment, and the 4 slots 8111b divide the head part of the expansion bolt head 8111 into 4 parts.

[0054] Thus, the present invention discloses an expansion bolt with a brand-new structure. Based on the expansion bolt body 811, an inverted claw-shaped part is added. The claw-shaped part is composed of a chuck member 812 and a protrusion 8121. When it is applied to a composite plate, the expansion bolt body 811 of the expansion bolt is implanted into the back surface of the panel 61 plate, and the inverted claw-shaped part is anchored together with a reinforcing plate 62 such as an aluminum honeycomb plate arranged on the back surface of the panel 61, and is stressed in two directions, greatly improving the pulling force of the expansion bolt, and further increasing the safety performance of the composite plate.

[0055] Embodiment 2

[0056] Figure 5 Schematically shows an expansion bolt connection device 8 according to an embodiment of the present invention.

[0057] As Figure 5As shown, the back-bolt connecting device 8 includes a back-bolt member 81, a fastening member 82, and a connecting bolt 83. The connecting bolt 83 is sleeved on the back-bolt member 81, and the fastening member 82 is sleeved on the connecting bolt 83. Both the fastening member 82 and the back-bolt member 81 are in threaded cooperation with the connecting bolt 83. The back-bolt member 81 is the above-mentioned back-bolt, and the back-bolt body 811 is in threaded cooperation with the connecting bolt 83.

[0058] Thus, the back-bolt connecting device 8 applies the above-mentioned back-bolt and has the advantage of good anchoring effect compared with the traditional back-bolt connecting device 8.

[0059] Embodiment 3

[0060] Figures 6-8 Schematically shows a dry-hanging installation system according to an embodiment of the present invention.

[0061] As Figures 6-8 shown, the dry-hanging installation system at least includes:

[0062] A composite board 6, including a panel 61 and a reinforcing board 62 provided on the back surface of the panel 61;

[0063] An ear hanger 7, connected to the composite board 6 through a back-bolt connecting device 8;

[0064] The back-bolt connecting device 8 is the above-mentioned back-bolt connecting device 8;

[0065] A back-bolt hole is formed on the back surface of the panel 61;

[0066] The back-bolt body 811 of the back-bolt connecting device 8 is matched with the back-bolt hole;

[0067] The chuck member 812 and the protrusion 8121 of the back-bolt connecting device 8 are matched with the reinforcing board 62.

[0068] Furthermore, the dry-hanging installation system further includes:

[0069] A longitudinal column 1;

[0070] A transverse keel 2, fixedly connected to the longitudinal column 1;

[0071] An L-shaped hanger 3, installed on the transverse keel 2;

[0072] The composite board 6 is suspended and installed on the L-shaped hanger 3 through the ear hanger 7;

[0073] There are two longitudinal columns 1 and several transverse keels 2. The several transverse keels 2 are arranged at intervals in the height direction of the longitudinal column 1;

[0074] Preferably, the bottom of the L-shaped hanger 3 is connected to the transverse keel 2, and a suspension end for limit cooperation with the ear hanger 7 is formed at the top. Thus, it is convenient to realize detachable dry-hanging installation.

[0075] Preferably, the dry hanging installation system further includes a first fastening assembly 4, a second fastening assembly 5 and a gasket 9. The ear hanger 7 is suspended and installed on the L-shaped hanger 3 and locked by the first fastening assembly 4, and the first fastening assembly 4 is a locking bolt. The bottom of the L-shaped hanger 3 is connected to the horizontal keel 2 through the second fastening assembly 5. The second fastening assembly 5 is an adjustable fastening structure composed of a bolt, a nut and an adjustment groove. The gasket 9 is arranged between the ear hanger 7 and the reinforcement plate 62.

[0076] Preferably, the longitudinal column 1 of this embodiment is a rectangular tubular hot-dip galvanized column, the horizontal keel 2 is a right-angled hot-dip galvanized angle steel keel, the panel 61 can be a rock slab with a thickness of 9 mm - 18 mm, and the reinforcement plate 62 is an aluminum honeycomb panel.

[0077] The present utility model provides a back-bolt type dry hanging installation system with a brand-new structure. The installation principle of this dry hanging installation system is as follows: First, according to the size of the panel 61, a number of back-bolt holes are opened on its back. Generally, 4 to 8 back-bolt points can be arranged. Then, the back-bolt member 81 and the connecting bolt 83 of the back-bolt connecting device 8 are assembled and placed into the back-bolt holes. Then, the reinforcement plate 62 is attached to the back of the panel 61. Then, a gasket 9, an ear hanger 7 and a fastener 82 are sequentially sleeved on the outer periphery of the connecting bolt 83. Locking is completed by screwing the fastener 82. Finally, through the connection between the ear hanger 7 and the L-shaped hanger 3, dry hanging installation is realized.

[0078] The dry hanging installation system of the present utility model applies the above-mentioned back-bolt. This back-bolt adds an inverted claw-shaped part on the traditional back-bolt. The back-bolt body 811 is implanted into the panel 61 such as a rock slab, and the inverted claw-shaped part is anchored together with the reinforcement plate 62 such as an aluminum honeycomb panel, with two-way force, greatly improving the pulling force and increasing the safety performance of the plate. This dry hanging installation system can cooperate with the column and the keel to realize back-bolt type dry hanging installation with thicknesses of 9 mm, 12 mm, 15 mm, etc., solving the problems of poor stability and poor safety of the traditional back-bolt type dry hanging system.

[0079] Embodiment 4

[0080] Figure 9 Schematically shows a back-bolt according to another embodiment of the present utility model.

[0081] As Figure 9 shown, the structure of this back-bolt is basically the same as that of Embodiment 1, except that the number of protrusions 8121 is different.

[0082] Specifically, the number of protrusions 8121 in this embodiment is 6, and the 6 protrusions 8121 are circumferentially arranged in an array along the center of the chuck member 812.

[0083] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A back bolt, characterized in that, It includes an expansion bolt body (811) and a chuck member (812) sleeved on the outer periphery of the expansion bolt body (811). A plurality of protrusions (8121) are provided on one end face of the chuck member (812) away from the expansion bolt body (811).

2. The back bolt according to claim 1, characterized in that, The protrusions (8121) are provided at the outer peripheral edge of the chuck member (812).

3. The back bolt according to claim 1, characterized in that, The plurality of protrusions (8121) are distributed in a circumferential array along the center of the chuck member (812).

4. The back bolt according to claim 1, characterized in that, The width of the protrusion (8121) gradually decreases from the root to the top.

5. The back bolt according to any one of claims 1-4, characterized in that, The expansion bolt body (811) includes an expansion bolt head (8111) and a connecting head (8112). The connecting head (8112) is sleeved on the outer periphery of one end of the expansion bolt head (8111) close to the chuck member (812), and the chuck member (812) is sleeved on the outer periphery of the connecting head (8112).

6. The back bolt according to claim 5, characterized in that, A threaded connection hole (8113) is provided at the centers of the expansion bolt head (8111) and the connecting head (8112).

7. The back bolt according to claim 5, characterized in that, A protruding (8121) portion that expands outward is formed at one end of the expansion bolt head (8111) away from the chuck member (812).

8. The back bolt according to claim 5, characterized in that, A plurality of slots (8111b) are provided at one end of the expansion bolt head (8111) away from the chuck member (812). The plurality of slots (8111b) divide the head of the expansion bolt head (8111) into multiple parts.

9. A back bolt connection device, comprising a back bolt member (81), a fastener (82) and a connection bolt (83), wherein the connection bolt (83) is sleeved on the back bolt member (81), the fastener (82) is sleeved on the connection bolt (83), and both the fastener (82) and the back bolt member (81) are in threaded cooperation with the connection bolt (83), characterized in that, The expansion bolt member (81) is the expansion bolt according to any one of claims 1-8, and the expansion bolt body (811) of the expansion bolt is in threaded fit with the connecting bolt (83).

10. A dry hanging installation system, at least including: A composite board, including a panel (61) and a reinforcing board (62) provided on the back surface of the panel (61); An ear hanger (7), which is connected to the composite board through an expansion bolt connecting device (8); It is characterized in that the expansion bolt connecting device (8) is the expansion bolt connecting device according to claim 9; A back bolt hole is provided on the back surface of the panel (61); The expansion bolt body (811) of the expansion bolt connecting device (8) is matched with the back bolt hole; The chuck member (812) and the protrusions (8121) of the expansion bolt connecting device (8) are matched with the reinforcing board (62).

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