Protective facility composite connecting assembly

Abstract

A protective facility composite connecting assembly comprises a screw part and a nut part, the screw part comprises a first rod part, a second rod part and a first disc part, one end of the first rod part is provided with external threads, the other end of the first rod part is connected with one end of the second rod part through a transition part, and the first disc part is arranged at the other end of the second rod part. A screwing structure is arranged on the side, away from the second rod part, of the first disc part, the nut part comprises an inner threaded sleeve and a second disc part, the second disc part is arranged at one end of the inner threaded sleeve, and the first rod part can be in threaded fit and screwed connection with the inner threaded sleeve through the outer threads. When the composite connecting assembly is adopted to conduct butt joint on the two sections of face pipes, the stability and attractiveness of the two sections of face pipes after butt joint are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building protection facility installation, in particular to a protection facility composite connection component. Background Art

[0002] Polyurethane electrostatic spraying protective facilities are installed during construction. During installation and transportation, they are generally transported by construction elevators. Due to the limited size of the construction elevator, some protective facility materials whose length exceeds the size requirements of the construction elevator, especially the surface pipes of the protective facilities, need to be divided into two sections for production during design to meet the transportation size requirements of the construction elevator. After the surface pipe materials at both ends are transported to the site, the two surface pipes are butt-jointed and lengthened through connectors. For example, when the surface pipe is a rectangular pipe, the connector is a U-shaped groove, and the two ends of the U-shaped groove are respectively inserted into the two sections of the surface pipe. The bottom of the U-shaped groove is located at the bottom of the surface pipe. The hexagon socket screw is inserted from the hole at the bottom of the surface pipe and screwed with the rivet nut at the bottom of the U-shaped groove, thereby connecting the two sections of the surface pipe. Since the screws are only installed at the bottom, the stability of the two sections of the surface pipe is poor after they are butt-jointed. If the connector is a rectangular tube that can be inserted into the face tube, the face tube and the connector are pierced through with ordinary bolts and then the nut is screwed on. Although the stability of the two face tubes after docking can be improved, the nut and the screw head extend out of the upper and lower sides of the face tube for a long length, resulting in a poor appearance. In addition, if the diameter of the screw is small compared to the diameter of the hole on the face tube and the connector, although the stability of the two face tubes after docking can be further improved, when the screw is inserted and installed, it is necessary to ensure that the holes on the face tube and the connector are completely aligned, which increases the difficulty of installation. If the diameter of the screw is adjusted to be much smaller than the diameter of the hole on the face tube and the connector, although it is easier to install the screw, the gap between the screw and the hole on the face tube and the connector becomes larger, and the two face tubes have a large wiggle room at the docking point after docking, resulting in poor stability. Therefore, in order to improve the stability and aesthetics of the two face tubes after docking, a composite connection assembly for protective facilities is designed. Summary of the invention

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, to provide a composite connection component for protective facilities, and to improve the stability and aesthetics of two sections of surface pipes after being butt-jointed.

[0004] In order to realize the above-mentioned technical features, the purpose of the utility model is realized as follows: a composite connection assembly of protective facilities, comprising a screw portion and a nut portion, the screw portion comprising a first rod portion, a second rod portion and a first disk portion, one end of the first rod portion is provided with an external thread, and the other end is connected to one end of the second rod portion through a transition portion, the first disk portion is arranged at the other end of the second rod portion, and the first disk portion is provided with a twisting structure on the side away from the second rod portion, the nut portion comprises an inner thread sleeve and a second disk portion, the second disk portion is arranged at one end of the inner thread sleeve, and the first rod portion can be screwed together with the inner thread sleeve thread through the external thread.

[0005] The inner screw sleeve is provided with a conical surface portion on the outer wall of the other end where the second disc portion is provided.

[0006] The outer wall of the inner screw sleeve is axially provided with a plurality of protruding stoppers at one end close to the second disc portion.

[0007] The twisting structure is a slot, a cross slot, or an inner polygonal slot.

[0008] An anti-disassembly structure is arranged in the twisting structure.

[0009] The twisting structure is an inner hexagonal groove, and the anti-disassembly structure is a column arranged in the inner hexagonal groove.

[0010] The utility model has the following beneficial effects:

[0011] 1. The diameter of the second rod portion of the utility model is larger than the first rod portion, and the outer diameters of the second rod portion and the inner screw sleeve are adapted to the holes on the face tube and the connecting piece. When docking, the holes on the face tube and the connecting piece are squeezed by the transition portion, so that the holes on the face tube and the connecting piece are adjusted and aligned. Since the outer diameters of the second rod portion and the inner screw sleeve are adapted to the holes on the face tube and the connecting piece, the gap is small, thereby improving the stability of the two sections of face tubes after docking. In addition, the first disc portion and the second disc portion have a thinner structure, so after the screw portion and the nut portion are installed, the first disc portion and the second disc portion will not appear abrupt, thereby improving the aesthetics.

[0012] 2. The outer wall of the inner thread sleeve of the utility model is axially provided with a plurality of protruding stoppers at one end close to the second disk portion, so as to prevent the nut portion from rotating when the screw portion is tightened, and facilitate installation. In addition, the outer diameter of the plurality of stoppers is slightly larger than the diameter of the upper side hole of the face tube and the connector, so that when the nut portion is hit against the upper side hole of the face tube and the connector by a hammer, the stoppers are stuck with the face tube and the upper side hole of the connector, further improving the stability of the two sections of face tube after docking.

[0013] 3. An anti-disassembly structure is provided in the twisting structure of the utility model to prevent non-professionals from disassembling the composite connection assembly of the application, thereby improving the safety of the protective facility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the AB section structure.

[0016] Figure 3 This is a schematic diagram of the first step of installation when the utility model is used.

[0017] Figure 4 This is a schematic diagram of the second step of installation when the utility model is used.

[0018] Figure 5 It is a schematic diagram of the third step of installation when the utility model is used.

[0019] Figure 6 It is a schematic diagram of the utility model after installation is completed when in use.

[0020] In the figure:

[0021] Screw portion 10 , first rod portion 11 , external thread 12 , second rod portion 13 , transition portion 14 , first disk portion 15 , twisting structure 16 , anti-disassembly structure 17 .

[0022] Nut portion 20, inner thread sleeve 21, second disc portion 22, conical surface portion 23, stopper portion 24;

[0023] Surface tube 30, connecting piece 40. DETAILED DESCRIPTION

[0024] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0025] See also Figure 1-6A composite connection assembly for protective facilities includes a screw portion 10 and a nut portion 20. The screw portion 10 includes a first rod portion 11, a second rod portion 13 and a first disk portion 15. One end of the first rod portion 11 is provided with an external thread 12, and the other end is connected to one end of the second rod portion 13 through a transition portion 14. The first disk portion 15 is arranged at the other end of the second rod portion 13. The first disk portion 15 is provided with a twisting structure 16 on the side away from the second rod portion 13. The nut portion 20 includes an inner thread sleeve 21 and a second disk portion 22. The second disk portion 22 is arranged at one end of the inner thread sleeve 21. The first rod portion 11 can be threadedly matched with the inner thread sleeve 21 through the external thread 12. The diameter of the second rod portion 13 is larger than that of the first rod portion 11, and the outer diameters of the second rod portion 13 and the inner screw sleeve 21 are adapted to the holes on the face tube 30 and the connecting piece 40. In this way, when the screw portion 10 is inserted upward from the bottom of the face tube 30 and the connecting piece 40, the holes on the face tube 30 and the connecting piece 40 do not need to be completely aligned first, as long as the first rod portion 11 passes through the holes on the face tube 30 and the connecting piece 40. Then, in the process of the screw portion 10 penetrating upward, the transition portion 14 squeezes the holes on the face tube 30 and the connecting piece 40, thereby adjusting the holes on the face tube 30 and the connecting piece 40 to be aligned, see Figure 3 Then, insert the lower end of the inner thread sleeve 21 of the nut portion 20 into the holes on the upper side of the surface tube 30 and the connecting member 40, and screw the inner thread sleeve 21 and the first rod portion 11 together for a distance, see Figure 4 , and then tighten the screw portion 10 and the nut portion 20.

[0026] Specifically, the first disc portion 15 and the second disc portion 22 have a thinner structure, so after the screw portion 10 and the nut portion 20 are installed, the first disc portion 15 and the second disc portion 22 will not appear abrupt, thereby improving the aesthetics.

[0027] See also Figure 2 The outer wall of the other end of the inner thread sleeve 21 where the second disk portion 22 is provided is provided with a conical surface portion 23 to facilitate the inner thread sleeve 21 to be inserted into the holes on the upper sides of the surface tube 30 and the connecting piece 40.

[0028] For further information, see Figure 1 , 2 The outer wall of the inner thread sleeve 21 is axially provided with a plurality of raised stoppers 24 at one end near the second disk portion 22 to prevent the nut portion 20 from rotating when the screw rod portion 10 is tightened. In this scheme, the diameter of the inner thread sleeve 21 is smaller than the diameter of the upper side holes of the face tube 30 and the connector 40, and the outer diameter composed of a plurality of stoppers 24 is slightly larger than the diameter of the upper side holes of the face tube 30 and the connector 40. When the nut portion 20 is knocked to the upper side holes of the face tube 30 and the connector 40 by a hammer, the stoppers 24 and the upper side holes of the face tube 30 and the connector 40 are stuck, and the nut portion 20 is fixed and cannot rotate.

[0029] For details, see Figure 1 The stop portion 24 is a triangular structure, and a gradual transition is also provided at one end of the stop portion 24 away from the second disk portion 22 .

[0030] In a preferred embodiment, the twisting structure 16 is a slot, a cross slot, or an inner polygonal slot.

[0031] Furthermore, an anti-disassembly structure 17 is provided in the twisting structure 16. The anti-disassembly structure 17 is provided to prevent non-professionals from disassembling the composite connection assembly of the present application.

[0032] Specifically, the twisting structure 16 is an inner hexagonal groove, and the anti-disassembly structure 17 is a column arranged in the inner hexagonal groove.

[0033] Of course, a column or a block may also be designed in the middle of the slot or the cross slot, so that ordinary tools are not convenient for disassembling the composite connection assembly of the present application.

[0034] When using, the first step is to refer to Figure 3 First, the holes on the noodle tube 30 and the connecting member 40 do not need to be completely aligned, as long as the first rod portion 11 passes through the holes on the noodle tube 30 and the connecting member 40. Then, when the screw portion 10 is installed upward, the transition portion 14 squeezes the holes on the noodle tube 30 and the connecting member 40, thereby adjusting the holes on the noodle tube 30 and the connecting member 40 to align.

[0035] Step 2, see Figure 4 Then, the lower end of the inner thread sleeve 21 of the nut portion 20 is inserted into the holes on the upper sides of the surface tube 30 and the connecting piece 40. At this time, the stopper 24 does not contact the hole. The nut portion 20 is manually twisted to screw the inner thread sleeve 21 and the first rod portion 11 together for a distance.

[0036] Step 3, see Figure 5 The nut portion 20 is hammered into the upper side holes of the face tube 30 and the connecting piece 40 by a hammer, and the stopper portion 24 is locked with the upper side holes of the face tube 30 and the connecting piece 40 to fix the nut portion 20. If the nut portion 20 is hammered into the upper side holes of the face tube 30 and the connecting piece 40 before the second step, the user cannot observe the internal position, which will make it impossible for the first rod portion 11 to be quickly aligned and screwed with the inner screw sleeve 21.

[0037] Step 4, see Figure 6 The screw portion 10 is screwed by a special tool in cooperation with the screwing structure 16 to tighten the screw portion 10 and the nut portion 20 .

Claims

1. A composite connection assembly for protective equipment, comprising a screw portion (10) and a nut portion (20), characterized in that: The screw rod portion (10) comprises a first rod portion (11), a second rod portion (13) and a first disc portion (15); one end of the first rod portion (11) is provided with an external thread (12), and the other end is connected to one end of the second rod portion (13) via a transition portion (14); the first disc portion (15) is arranged at the other end of the second rod portion (13); the first disc portion (15) is provided with a screwing structure (16) on a side of the first disc portion (15) away from the second rod portion (13); the nut portion (20) comprises an inner thread sleeve (21) and a second disc portion (22); the second disc portion (22) is arranged at one end of the inner thread sleeve (21); the first rod portion (11) can be threadedly engaged with the inner thread sleeve (21) via the external thread (12).

2. The composite connection assembly of protective facilities according to claim 1, characterized in that: The inner screw sleeve (21) is provided with a conical surface portion (23) on the outer wall of the other end where the second disc portion (22) is provided.

3. The composite connection assembly for protective facilities according to claim 1 or 2, characterized in that: The outer wall of the inner screw sleeve (21) is axially provided with a plurality of protruding stoppers (24) at one end close to the second disc portion (22).

4. The composite connection assembly for protective facilities according to claim 1, characterized in that: The twisting structure (16) is a slot, a cross slot, or an inner polygonal slot.

5. The composite connection assembly for protective facilities according to claim 4, characterized in that: An anti-disassembly structure (17) is provided in the twisting structure (16).

6. The composite connection assembly for protective facilities according to claim 5, characterized in that: The twisting structure (16) is an inner hexagonal groove, and the anti-disassembly structure (17) is a column arranged in the inner hexagonal groove.

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