Large-load M-shaped truss stabilizing clamping piece

Abstract

The utility model provides a large-load M-shaped truss stabilizing clamping piece. The large-load M-shaped truss stabilizing clamping piece comprises an M-shaped stabilizing clamping piece body, a holding bolt and two longitudinal beam locking wedge-shaped pins. The M-shaped stable clamping piece body is composed of a U-shaped half-wrapped hoop and two hollow side-by-side lock pipes located on the two sides of the U-shaped half-wrapped hoop, the two hollow side-by-side lock pipes and the U-shaped half-wrapped hoop are arranged in an M shape and integrally formed, and the U-shaped half-wrapped hoop on the upper half portion of the M-shaped stable clamping piece body tightly surrounds and lifts the lower chord portion of the oval pipe truss; the enclasping bolts penetrate through enclasping round holes in the U-shaped half-wrapped hoops and concentric through round holes preset in the elliptical tube truss and are screwed and fixed by the locknuts; the connecting structure has the advantages that the oval tube truss and the longitudinal six-section round tube straining beam of the greenhouse roof can be effectively connected and fixed, the strength of the truss of the greenhouse roof and the stability of a greenhouse structure are improved, and the wind load resistance and the snow load resistance of the truss are greatly enhanced; corrosion resistance and firmness are excellent, and rapid assembly and construction are facilitated.

Description

Technical Field

[0001] This utility model relates to prefabricated components for elliptical tube truss assembly in greenhouses, and more particularly to a stabilizing fastener for an assembled, high-load M-shaped truss made of elliptical tube truss in greenhouses. Background Technology

[0002] Currently, there are generally two types of prefabricated connectors for assembling elliptical tube trusses for fixed greenhouse roofs:

[0003] One type is the "ruler" shaped support frame. Its structure consists of prefabricated "ruler"-shaped steel strips, clamping bolts, and U-shaped pipe clamps. During the assembly of the elliptical tube truss for the greenhouse roof, the top three sides (left, right, and top) of the prefabricated "ruler"-shaped steel strips encircle the elliptical tube truss. Bolts are then passed through holes and tightened horizontally below the elliptical tube. The two bases are each fixed to a longitudinal six-point circular tube tie beam using two U-shaped pipe clamps and nuts, utilizing the stability principle of a triangle to fix and support the truss. One disadvantage is that the two U-shaped pipe clamps fixing the two bases of the "ruler"-shaped support frame are not tightly secured to the longitudinal six-point circular tube tie beam. When the roof load (wind load, snow load, or the insulation blanket getting wet from rain) increases, the two U-shaped pipe clamps are prone to sliding and splitting on the longitudinal six-point circular tube tie beam, leading to a decrease in triangular stability and a reduction in the greenhouse's wind and snow load resistance. Another disadvantage is the large number of parts involved in the assembly, making it inconvenient to operate, time-consuming, labor-intensive, and costly.

[0004] One type is the "V"-shaped clamp. Its structure consists of a prefabricated "V"-shaped steel strip clamp and a wedge-shaped pin for locking the longitudinal beam. Before assembling the elliptical tube truss of the greenhouse roof after bending, it is necessary to use 25mm long self-drilled nails to fasten the bent elliptical tube truss to the prefabricated "V"-shaped steel strip clamp according to the preset spacing of the longitudinal beam. Specifically, the top three sides (left, right, and bottom) of the U-shaped semi-enclosing clamp at the top of the "V"-shaped steel strip clamp are tightly wrapped around and clamped to the lower chord of the elliptical tube truss. Then, 25mm long self-drilled nails are used to securely tighten the clamp at the three pre-set circular holes on both sides of the "V"-shaped steel strip clamp. A groove with a rounded top and a straight bottom is pre-set at the center of the bottom corner of the "V"-shaped steel strip prefabricated clamp. The upper diameter is 26mm and the inner height is 33mm. When assembling the truss on site, according to the set truss spacing, the "V"-shaped steel strip prefabricated clamps corresponding to each truss are respectively clamped onto the same six-point pipe longitudinal beam, and then locked with a locking wedge pin. After the "V"-shaped steel strip prefabricated clamps lock the six-point pipe longitudinal beam, the two sides of the upper U-shaped semi-enclosed clamp and the groove with a rounded top and a straight bottom pre-set at the center of the bottom corner of the clamp form a small triangle. The stability principle of the triangle is used to fix and support the truss. One disadvantage is that in areas with strong winds and heavy snow, the height of the "V"-shaped steel prefabricated clamps needs to be increased (otherwise, the longitudinal beams will damage the greenhouse film). Since the distance between the two sides of the U-shaped semi-enclosed clamps at the top of the prefabricated clamps is already small (about 15mm), increasing the height will reduce the stability of the triangle, thereby reducing the wind and snow load on the truss. The second disadvantage is that the "V"-shaped steel prefabricated clamps are fixed to the elliptical tube truss with six 25mm long self-drilled screws. Due to the humid environment of the greenhouse and the insufficient thickness of the elliptical tube wall (only about 2.2mm), the drill holes of the self-drilled screws are prone to rotting. The self-drilled screws falling off will cause the triangle to lose stability, greatly reducing the wind and snow load on the truss and causing the greenhouse structure to lose stability. The third disadvantage is that when assembling the "V"-shaped steel prefabricated clamps, self-drilled screws need to be drilled on both sides of the elliptical tube truss, which requires flipping the frame, which is time-consuming, labor-intensive, and costly. Utility Model Content

[0005] In view of the above problems, the purpose of this utility model is to provide a large-load M-shaped truss stabilizing clip for fixing the elliptical tube truss of the greenhouse roof, so as to overcome the shortcomings of the prior art.

[0006] This utility model provides a high-load M-shaped truss stabilizing clamp, comprising: an M-shaped stabilizing clamp body, a clamping bolt, and two locking longitudinal beam wedge pins; wherein the M-shaped stabilizing clamp body is composed of a U-shaped semi-enclosed clamp and two hollow parallel locking tubes located on both sides of the U-shaped semi-enclosed clamp, the two hollow parallel locking tubes and the U-shaped semi-enclosed clamp are arranged in an M-shape and integrally formed, the U-shaped semi-enclosed clamp on the upper part of the M-shaped stabilizing clamp body tightly surrounds and supports the lower chord of the elliptical tube truss. The clamping bolt passes through the clamping circular hole on the U-shaped semi-enclosed clamp and the pre-set concentric through-hole of the elliptical tube truss, and is tightened and fixed with an anti-loosening nut; the bottom middle position of the hollow parallel locking tube has a longitudinal beam embedding slot, and the two locking longitudinal beam wedge pins are inserted from the hollow side opening of the hollow parallel locking tube and locked to the longitudinal six-point circular tube tie beam after the longitudinal beam embedding slots on the two hollow parallel locking tubes are simultaneously locked on the longitudinal six-point circular tube tie beam.

[0007] As a preferred embodiment of this utility model, the U-shaped semi-enclosed clamp and the two hollow parallel locking tubes of the M-shaped stabilizing clamp body are integrally formed from galvanized steel strip; the thickness of the galvanized steel strip used to make the M-shaped stabilizing clamp body is 2.0mm; the shoulder height of the U-shaped semi-enclosed clamp on the upper part of the M-shaped stabilizing clamp body is 40mm, and one clamp is made on each side of the U-shaped semi-enclosed clamp. The clamping circular hole is 10mm from the upper edge. Under the premise that the U-shaped semi-enclosed clamp surrounds and supports the lower chord of the elliptical tube truss without gaps, a through circular hole is provided on the elliptical tube at the position corresponding to the clamping circular hole. This allows the two... Hold the two holes tightly on the round hole and the oval tube. The through holes are concentric and perfectly aligned to ensure that the 10mm diameter screw can be smoothly inserted.

[0008] As a preferred embodiment of this utility model, the internal spacing of the U-shaped semi-enclosed clamp is 81mm.

[0009] As a preferred embodiment of this utility model, the bottom edge of the hollow parallel locking tube of the M-shaped stabilizing clip body is 175mm away from the bottom edge of the U-shaped semi-enclosed clamp, the inner distance between the bottom corners of the two hollow parallel locking tubes is 20mm, the outer distance between the bottom corners is 40mm, and the width of the hollow side opening at the bottom corner of the hollow parallel locking tube is 5mm.

[0010] As a preferred embodiment of this utility model, the longitudinal beam is embedded in the groove at the center of the bottom corner of the hollow parallel locking tube. The longitudinal beam is embedded in the groove with a round top and a straight bottom. The diameter of the upper circle of the groove is 26mm and the height of the groove is 33mm. The six-point longitudinal beam can be smoothly inserted to achieve a fit with the upper edge of the groove.

[0011] As a preferred embodiment of this utility model, the clamping bolt is a galvanized screw with a diameter of 10mm and a length of 60mm, and is tightened with a lock nut.

[0012] As a preferred embodiment of this utility model, the two locking longitudinal beam wedge pins are trapezoidal in shape, with a length of 75mm, a bottom diameter of 14mm, a top diameter of 5mm, and a thickness of 4.5mm.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In order to prevent the problem of reduced stability of the triangle caused by increasing the height of the "V"-shaped prefabricated steel strip clamp in the prior art, this utility model changes the "V"-shaped prefabricated steel strip clamp to an M-shaped truss stabilizing clamp. First, it increases the side length of the upper side of the triangle formed after the stabilizing clamp and the longitudinal beam are assembled. Second, it changes the two upright clips of the "V"-shaped prefabricated steel strip clamp to two hollow parallel locking tubes of the M-shaped truss stabilizing clamp, thus effectively strengthening the two hypotenuses of the "triangle".

[0015] 2. In order to prevent the use of 6 self-drilling screws to fix the "V"-shaped steel strip prefabricated fasteners on the elliptical tube truss, which are prone to rotting at the drill holes due to the humid greenhouse environment, and which will eventually fall off and cause the triangle to lose stability, this utility model changes the "V"-shaped steel strip prefabricated fasteners to M-shaped truss stabilizing fasteners. The fastening bolts are used to pass through the fastening round holes on the U-shaped semi-enclosed clamps and the pre-set concentric through round holes on the elliptical tube truss, and are tightened with nuts.

[0016] 3. This utility model overcomes the drawbacks of the "V"-shaped steel strip prefabricated fastener, greatly increases the stability of the triangle, and thus increases the wind and snow load of the truss; moreover, the pre-set through holes on the M-shaped truss stabilizing fastener and the elliptical tube truss can be prefabricated in the factory, so there is no need to flip the frame on both sides when assembling the M-shaped truss stabilizing fastener, which saves time, labor and effort. Attached Figure Description

[0017] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the M-shaped stabilizing clip body according to an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram showing the connection between the M-shaped stabilizing clip body and the wedge-shaped pin of the locking longitudinal beam according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the clamping bolt structure according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the locking longitudinal beam wedge pin structure according to an embodiment of the present utility model.

[0022] The attached diagrams are labeled as follows: M-shaped stabilizing clamp body 1; clamping bolt 2; locking longitudinal beam wedge pin 3; clamping round hole 4; anti-loosening nut 5; U-shaped semi-enclosed clamp 101; hollow parallel locking tube 102; longitudinal beam embedded groove 103; hollow side opening 104. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution and advantages of this utility model, the present application will be described in detail below with reference to the accompanying drawings, but this is not intended to limit the scope of protection of this utility model.

[0024] See Figures 1 to 4 As shown: This embodiment provides a high-load M-shaped truss stabilizing clamp, including: an M-shaped stabilizing clamp body 1, a clamping bolt 2, and two locking longitudinal beam wedge pins 3; wherein the M-shaped stabilizing clamp body 1 is composed of a U-shaped semi-enclosed clamp 101 made of galvanized steel strip and a hollow parallel locking tube 102, the upper part of the M-shaped stabilizing clamp body 1 having the U-shaped semi-enclosed clamp 101 tightly surrounding and supporting the lower chord of the elliptical tube truss; the clamping bolt 2 passes through the clamping circular hole 4 on the U-shaped semi-enclosed clamp 101 and the pre-set concentric through-hole of the elliptical tube truss and is tightened and fixed with a lock nut 5; the function of the two locking longitudinal beam wedge pins 3 is that after the longitudinal beam on the hollow parallel locking tube 102 is embedded in the slot 103 and simultaneously locked on the longitudinal six-point circular tube tie beam, it is respectively locked with the two locking longitudinal beam wedge pins 3.

[0025] Furthermore, in this embodiment, the U-shaped semi-enclosed clamp 101 and the two hollow parallel locking tubes 102 of the M-shaped stabilizing clamp body 1 are integrally formed from galvanized steel strip; the thickness of the galvanized steel strip used to make the M-shaped stabilizing clamp body 1 is 2.0mm; the shoulder height (depth) of the U-shaped semi-enclosed clamp 101 in the upper part of the M-shaped stabilizing clamp body 1 is 40mm, and one U-shaped semi-enclosed clamp 101 is made on each side. The clamping circular hole 4 is 10mm from the upper edge. Under the premise that the U-shaped semi-enclosed clamp 101 surrounds and supports the lower chord of the elliptical tube truss without gaps, a through circular hole (not shown) is provided on the elliptical tube at the position corresponding to the clamping circular hole. This allows the two... Hold tightly the round hole 4 and the two on the elliptical tube The through holes are concentric and perfectly aligned to ensure that the 10mm diameter screw can be smoothly inserted.

[0026] Furthermore, in this embodiment, the internal spacing of the U-shaped semi-enclosed clamp 101 is 81mm.

[0027] Furthermore, in this embodiment, the bottom edge of the hollow parallel locking tube 102 of the M-shaped stabilizing clip body 1 is 175mm from the bottom edge of the U-shaped semi-enclosed clamp 101, the inner distance between the bottom corners of the two hollow parallel locking tubes 102 is 20mm, the outer distance between the bottom corners is 40mm, and the width of the hollow side opening 104 at the bottom corner of the hollow parallel locking tube 102 is 5mm.

[0028] Furthermore, in this embodiment, the longitudinal beam embedding slot 103 is located at the center of the bottom corner of the hollow parallel locking tube 102. The longitudinal beam embedding slot 103 is a slot with a round top and a straight bottom. The diameter of the upper circle of the slot is 26mm and the height of the slot is 33mm. The six-point tube longitudinal beam can be smoothly inserted to achieve a fit with the upper edge of the slot.

[0029] Furthermore, in this embodiment, the clamping bolt 2 is a galvanized screw with a diameter of 10mm and a length of 60mm, and is tightened with a lock nut 5.

[0030] Furthermore, in this embodiment, the two locking longitudinal beam wedge pins 3 are trapezoidal in shape, with a length of 75mm, a bottom diameter of 14mm, a top diameter of 5mm, and a thickness of 4.5mm.

[0031] Furthermore, in this embodiment, the U-shaped semi-enclosed clamp 101 made of galvanized steel strip has two clamping holes 4, which correspond positively to the pre-set concentric through holes of the elliptical tube truss.

[0032] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high-load M-shaped truss stabilizing fastener, characterized in that, include: The device comprises an M-shaped stabilizing clamp body, a clamping bolt, and two locking longitudinal beam wedge pins. The M-shaped stabilizing clamp body consists of a U-shaped semi-enclosed clamp and two hollow parallel locking tubes located on both sides of the U-shaped semi-enclosed clamp. The two hollow parallel locking tubes and the U-shaped semi-enclosed clamp are arranged in an M-shape and integrally formed. The upper part of the M-shaped stabilizing clamp body has a U-shaped semi-enclosed clamp that tightly surrounds and supports the lower chord of the elliptical tube truss. The clamping bolt passes through the clamping circular hole on the U-shaped semi-enclosed clamp and the pre-set concentric through-hole on the elliptical tube truss and is tightened with an anti-loosening nut. The bottom of the hollow parallel locking tube has a longitudinal beam embedding slot. The two locking longitudinal beam wedge pins are inserted from the hollow side opening of the hollow parallel locking tube and lock the longitudinal six-point circular tube tie beam after the longitudinal beam embedding slots on the two hollow parallel locking tubes are simultaneously engaged with the longitudinal six-point circular tube tie beam.

2. The large-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The U-shaped semi-enclosed clamp and two hollow parallel locking tubes of the M-shaped stabilizing clamp body are integrally formed from galvanized steel strips; the thickness of the galvanized steel strips used to make the M-shaped stabilizing clamp body is 2.0mm; the shoulder height of the U-shaped semi-enclosed clamp in the upper part of the M-shaped stabilizing clamp body is 40mm, and a Ø11mm clamping hole is drilled on each side of the U-shaped semi-enclosed clamp, with the clamping hole 10mm away from the upper edge. A through hole is provided on the elliptical tube at the position corresponding to the clamping hole.

3. The large-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The internal spacing of the U-shaped semi-enclosed clamp is 81mm.

4. A high-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The bottom edge of the hollow parallel locking tube of the M-shaped stabilizing clamp body is 175mm from the bottom edge of the U-shaped semi-enclosed clamp. The inner distance between the bottom corners of the two hollow parallel locking tubes is 20mm, the outer distance between the bottom corners is 40mm, and the width of the hollow side opening at the bottom corner of the hollow parallel locking tube is 5mm.

5. A high-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The longitudinal beam is embedded in the slot at the center of the bottom corner of the hollow parallel locking tube. The slot is round at the top and straight at the bottom, with an upper diameter of 26mm and a height of 33mm.

6. A high-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The clamping bolt is a galvanized bolt with a diameter of 10mm and a length of 60mm.

7. A high-load M-shaped truss stabilizing clamp according to claim 1, characterized in that, The two locking longitudinal beam wedge pins are trapezoidal in shape, with a length of 75mm, a bottom diameter of 14mm, a top diameter of 5mm, and a thickness of 4.5mm.

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