Truss cross beam telescopic connecting joint

Abstract

The utility model discloses a truss cross beam telescopic connecting joint, which relates to the technical field of buildings, and comprises a first telescopic pipe and a second telescopic pipe, the second telescopic pipe is arranged in the first telescopic pipe in a sliding manner, and the upper side and the lower side of the first telescopic pipe are respectively provided with two guide sliding holes which are symmetrically arranged; a plurality of symmetrically-arranged limiting nuts are fixedly arranged on the inner wall of the second telescopic pipe, a plurality of fixing bolts are slidably arranged in the two guide sliding holes, the screw rod ends of the fixing bolts penetrate out of the guide sliding holes and are matched with internal threads of the limiting nuts in a penetrating mode, and the rod walls of the fixing bolts are all sleeved with gaskets; the gasket is in contact fit with the outer wall of the first telescopic pipe. According to the first telescopic pipe, the second telescopic pipe, the guide sliding hole, the limiting nut and the fixing bolt provided by the utility model, under the sliding fit of the first telescopic rod and the second telescopic rod, the two adjacent cross beams can be connected and matched at different intervals, and the stability and the convenience in the arrangement process of the truss cross beams are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a telescopic connection joint of a truss beam. Background Art

[0002] A truss beam is a structure composed of many web members. In the fields of bridges and buildings, it serves as the main load-bearing structure or the main load-bearing part of a beam bridge to transfer loads parallel to the ground.

[0003] At present, in the process of truss installation and assembly, there is no safe, stable and standardized fixing method for the adjustable fixed joints required at the truss beam joints. Therefore, when the gap size at the beam joints is adjustable, a reliable, safe and firm retractable splicing joint is needed to adapt to the splicing of beams with different retractable size requirements, and ultimately achieve the requirements of improving the quality and safety factor of the truss beams.

[0004] Therefore, we proposed a truss beam telescopic connection joint to solve the above problems. Utility Model Content

[0005] In view of the above problems existing in the existing telescopic connection joints of truss beams, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a truss beam telescopic connection joint, which solves the problem that the connection joint in the prior art cannot adapt to the splicing of beams with different telescopic size requirements.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The truss crossbeam telescopic connection joint comprises a first telescopic tube and a second telescopic tube, wherein the second telescopic tube is slidably arranged in the first telescopic tube, and two symmetrically arranged guide sliding holes are provided on the upper and lower sides of the first telescopic tube, and a plurality of symmetrically arranged limit nuts are fixedly arranged on the inner wall of the second telescopic tube, and a plurality of fixing bolts are slidably arranged in the two guide sliding holes, and the screw ends of the fixing bolts pass through the guide sliding holes and cooperate with the internal threaded penetration of the limit nuts;

[0009] The rod walls of the plurality of fixing bolts are sleeved with gaskets, which are in contact with and fit with the outer wall of the first telescopic tube. A position limiting and anti-slipping mechanism for limiting the position of the fixing bolt is provided on a side of each gasket away from the first telescopic tube.

[0010] Preferably, the plurality of limit nuts are all fixedly connected to the interior of the second telescopic tube by welding.

[0011] Preferably, the limit and anti-slip mechanism includes a support frame, which is fixedly connected to the surface of the gasket, a rotating rod is rotatably passed through the upper end of the support frame, a limit baffle is provided on the rod wall fixing sleeve of the rotating rod, the limit baffle cover is arranged on the outer side of the fixing bolt, and a rotation positioning mechanism is provided between the limit baffle and the support frame.

[0012] Preferably, the rotation positioning mechanism includes a positioning rod, a connecting plate is fixedly provided on the outer wall of the limit baffle, the positioning rod is slidably inserted into the connecting plate, and two positioning holes for cooperating with the positioning rod are provided at the upper end of the support frame. A spring is provided on the rod wall of the positioning rod, and the two ends of the spring are respectively fixedly connected to the positioning rod and the connecting plate.

[0013] Furthermore, a pull ring rod is fixedly provided at one end of the positioning rod away from the gasket.

[0014] Preferably, the gasket is a metal elastic gasket.

[0015] Preferably, the longitudinal section of the support frame is L-shaped.

[0016] Preferably, a plurality of guide blocks which are symmetrically arranged around the outer wall of the second telescopic tube are fixedly provided, and the guide blocks are in contact and cooperation with the inner wall of the first telescopic tube.

[0017] Preferably, outer walls of the first telescopic tube and the second telescopic tube are both provided with a plurality of supporting grooves.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] 1. The utility model, through the first telescopic tube, the second telescopic tube, the guide sliding hole, the limit nut and the fixing bolt, can connect two adjacent beams with different spacings under the sliding cooperation of the first telescopic rod and the second telescopic rod, thereby improving the stability and convenience of the truss beam setting process.

[0020] 2. The utility model can limit the top position of the fixing bolts set inside the first telescopic tube and the second telescopic tube through the provided gasket and the limiting and anti-slip mechanism, so as to avoid the loosening of the fixing bolts due to vibration of the cross beam as much as possible, thereby improving the tightness of the first telescopic tube and the second telescopic tube during the matching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a side view of the utility model;

[0024] Figure 3 It is a top view of the utility model;

[0025] Figure 4 For the utility model Figure 3 A magnified schematic diagram of part A.

[0026] Description of reference numerals:

[0027] 1. First telescopic tube; 2. Second telescopic tube; 3. Guide slide hole; 4. Limit nut; 5. Fixing bolt; 6. Gasket; 7. Support frame; 8. Turn bar; 9. Limit baffle; 10. Positioning rod; 11. Connecting plate; 12. Positioning hole; 13. Spring; 14. Pull ring rod; 15. Guide block; 16. Support groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model embodiment discloses a truss beam telescopic connection joint.

[0030] Example 1

[0031] The utility model provides Figure 1-3 The truss crossbeam telescopic connection joint shown includes a first telescopic tube 1 and a second telescopic tube 2. The outer walls of the first telescopic tube 1 and the second telescopic tube 2 are both provided with a plurality of support grooves 16. The second telescopic tube 2 is slidably arranged in the first telescopic tube 1. The outer wall of the second telescopic tube 2 is fixed with a plurality of guide blocks 15 that are symmetrically arranged around. The guide blocks 15 are in contact and cooperate with the inner wall of the first telescopic tube 1. The upper and lower sides of the first telescopic tube 1 are both provided with two symmetrically arranged guide sliding holes 3. The inner wall of the second telescopic tube 2 is fixed with a plurality of symmetrically arranged limit nuts 4. The plurality of limit nuts 4 are all fixedly connected to the inside of the second telescopic tube 2 by welding. A plurality of fixing bolts 5 are slidably arranged in the two guide sliding holes 3. The screw ends of the fixing bolts 5 pass through the guide sliding holes 3 and cooperate with the internal threads of the limit nuts 4.

[0032] Before connecting two adjacent crossbeams, the second telescopic tube 2 is inserted into the first telescopic tube 1, and the connection between the first telescopic tube 1 and the second telescopic tube 2 is specifically adjusted according to the required connection spacing between the two crossbeams, and the fixing bolt 5 is passed through the guide slide hole 3 and screwed into the limit nut 4 to fix the position of the first telescopic tube 1 and the second telescopic tube 2, and then the two adjacent crossbeams can be connected to the first telescopic tube 1 and the second telescopic tube 2.

[0033] Example 2

[0034] Embodiment 2 is based on Embodiment 1. In order to limit the position of the fixing bolt 5 after the fixing bolt 5 is connected to the limiting nut 4, the fixing bolt 5 is prevented from loosening due to vibration as much as possible. Figure 3-4 As shown, the rod walls of multiple fixing bolts 5 are all sleeved with gaskets 6, which are metal elastic gaskets. The gaskets 6 are in contact with the outer wall of the first telescopic tube 1, and each gasket 6 is provided with a limiting anti-slip mechanism for limiting the position of the fixing bolt 5 on the side away from the first telescopic tube 1. The limiting anti-slip mechanism includes a support frame 7, and the longitudinal section of the support frame 7 is L-shaped. The support frame 7 is fixedly connected to the surface of the gasket 6, and a rotating rod 8 is rotatably penetrated at the upper end of the support frame 7. The rod wall of the rotating rod 8 is fixedly sleeved with a limiting baffle 9, and the limiting baffle 9 is covered on the outer side of the fixing bolt 5.

[0035] Before the fixing bolt 5 is connected with the limiting nut 4, the gasket 6 is placed on the outside of the first telescopic tube 1, and the fixing bolt 5 is inserted into the gasket 6, and then the limiting baffle 9 is supported by the rotating rod 9 to keep away from the fixing bolt 5. At this time, the fixing bolt 5 can rotate stably. When the fixing bolt 5 and the limiting nut 4 are tightly matched, the limiting baffle 9 is rotated to make the limiting baffle 9 rotate to the outside of the fixing bolt 5, and the fixing bolt 5 is longitudinally limited to avoid the fixing bolt 5 from loosening and moving up.

[0036] Example 3

[0037] Embodiment 3 is based on Embodiment 2 in order to determine the position of the limit baffle 9, such as Figure 4 As shown, a rotation positioning mechanism is provided between the limit baffle 9 and the support frame 7, and the rotation positioning mechanism includes a positioning rod 10. A connecting plate 11 is fixedly provided on the outer wall of the limit baffle 9. The positioning rod 10 is slidably inserted into the connecting plate 11. Two positioning holes 12 for plugging the positioning rod 10 are provided at the upper end of the support frame 7. A spring 13 is provided on the rod wall of the positioning rod 10. Both ends of the spring 13 are fixedly connected to the positioning rod 10 and the connecting plate 11 respectively. A pull ring rod 14 is fixedly provided at the end of the positioning rod 10 away from the gasket 6.

[0038] Before rotating the limit baffle 9 to above the fixing bolt 5, pull the pull ring rod 14 to make the positioning rod 10 slide in the connecting plate 11 and stretch the spring 13. Then, when the limit baffle 9 is rotated to the limit position, release the pull ring rod 14. Under the elastic force recovery of the spring 13, the positioning rod 10 rebounds and is inserted into the positioning hole 12, thereby determining the position of the limit baffle 9.

[0039] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A truss beam telescopic connection joint, comprising a first telescopic tube (1) and a second telescopic tube (2), characterized in that: The second telescopic tube (2) is slidably arranged in the first telescopic tube (1), and two symmetrically arranged guide sliding holes (3) are provided on the upper and lower sides of the first telescopic tube (1). A plurality of symmetrically arranged limit nuts (4) are fixedly arranged on the inner wall of the second telescopic tube (2), and a plurality of fixing bolts (5) are slidably arranged in the two guide sliding holes (3), and the screw ends of the fixing bolts (5) pass through the guide sliding holes (3) and cooperate with the internal threads of the limit nuts (4); The rod walls of the plurality of fixing bolts (5) are sleeved with gaskets (6), the gaskets (6) are in contact with and fit the outer wall of the first telescopic tube (1), and a position limiting and anti-slipping mechanism for limiting the position of the fixing bolts (5) is provided on a side of each gasket (6) away from the first telescopic tube (1).

2. The truss beam telescopic connection joint according to claim 1, characterized in that: The plurality of limit nuts (4) are all fixedly connected to the interior of the second telescopic tube (2) by welding.

3. The truss beam telescopic connection joint according to claim 1, characterized in that: The position-limiting anti-slip mechanism comprises a support frame (7), the support frame (7) is fixedly connected to the surface of the gasket (6), a rotating rod (8) is rotatably penetrated through the upper end of the support frame (7), a position-limiting baffle (9) is fixedly sleeved on the rod wall of the rotating rod (8), the position-limiting baffle (9) is covered on the outer side of the fixing bolt (5), and a rotation positioning mechanism is provided between the position-limiting baffle (9) and the support frame (7).

4. The truss beam telescopic connection joint according to claim 3, characterized in that: The rotation positioning mechanism comprises a positioning rod (10), a connecting plate (11) is fixedly provided on the outer wall of the limit baffle (9), the positioning rod (10) is slidably inserted into the connecting plate (11), the upper end of the support frame (7) is provided with two positioning holes (12) for plugging in the positioning rod (10), the rod wall of the positioning rod (10) is sleeved with a spring (13), and the two ends of the spring (13) are respectively fixedly connected to the positioning rod (10) and the connecting plate (11).

5. The truss beam telescopic connection joint according to claim 4, characterized in that: A pull ring rod (14) is fixedly provided at one end of the positioning rod (10) away from the gasket (6).

6. The truss beam telescopic connection joint according to claim 1, characterized in that: The gasket (6) is a metal elastic gasket.

7. The truss beam telescopic connection joint according to claim 3, characterized in that: The longitudinal section of the support frame (7) is L-shaped.

8. The truss beam telescopic connection joint according to claim 1, characterized in that: The outer wall of the second telescopic tube (2) is fixedly provided with a plurality of guide blocks (15) arranged in a symmetrical manner around the outer wall, and the guide blocks (15) are in contact and fit with the inner wall of the first telescopic tube (1).

9. The truss beam telescopic connection joint according to claim 1, characterized in that: The outer walls of the first telescopic tube (1) and the second telescopic tube (2) are both provided with a plurality of supporting grooves (16).

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