Arch bar connecting structure

Abstract

The utility model provides an arch bar connecting structure, which relates to the field of agricultural greenhouse building, comprises a first arch bar, a first connecting hole is formed in the first arch bar, and solves the problems that the existing arch bar connecting mode generally adopts welding, bolt connection and the like, although the connection is firm in the welding mode, professional welding equipment and technicians are needed, and the construction cost is low. In order to solve the problems that in the prior art, the construction process is complex, stress concentration is likely to happen to welding points, the structural strength is reduced, and meanwhile later maintenance and disassembly are extremely inconvenient, anti-dislocation insertion strips and guide insertion grooves are matched in a modularized insertion mode, limiting insertion strips and limiting sleeves are matched in a modularized insertion mode, and positioning can be rapidly completed without professional tools; the fixing bolts and the limiting nuts are easy to disassemble and assemble, the construction difficulty is greatly reduced, compared with the limitation that professional equipment and technicians are needed in a traditional welding mode, the structure can remarkably improve the installation efficiency, parts can be separated only by unscrewing the limiting nuts during disassembly, and later maintenance of the greenhouse is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural greenhouse construction, and specifically relates to an arch rod connection structure. Background Technology

[0002] Currently, in the construction of agricultural greenhouses and other similar projects, the connection of arch poles is a crucial link. Existing arch pole connection methods typically include welding and bolting. While welding provides a strong connection, it requires specialized welding equipment and technicians, involves a complex construction process, and is prone to stress concentration at the weld points, leading to a decrease in structural strength. Furthermore, it is extremely inconvenient for subsequent maintenance and disassembly. Bolted connections, on the other hand, are susceptible to loosening due to the potential for significant external forces and vibrations during use, resulting in reduced connection stability and impacting the safety and reliability of the entire structure.

[0003] Therefore, in view of the shortcomings of the above-mentioned solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking excellence, and with the assistance of professional knowledge and experience, and after much ingenuity and experimentation, this utility model was created. It provides an arch rod connection structure to solve the problems of existing arch rod connection methods, which usually use welding and bolt connections. Although welding methods provide a strong connection, they require professional welding equipment and technicians, the construction process is complicated, and stress concentration is prone to occur at the welding points, leading to a decrease in structural strength. At the same time, it is extremely inconvenient for later maintenance and disassembly. Utility Model Content

[0004] This utility model proposes an arch rod connection structure that solves the problems of existing arch rod connection methods, which usually use welding and bolting. Although welding provides a strong connection, it requires professional welding equipment and technicians, the construction process is complicated, and stress concentration is prone to occur at the welding points, leading to a decrease in structural strength. In addition, it is extremely inconvenient for later maintenance and disassembly.

[0005] The technical solution of this utility model is implemented as follows: an arch rod connection structure includes: a first arch rod, the first arch rod having a first connecting hole inside, there are two first connecting holes, and the two first connecting holes are arranged in a longitudinal array on the upper and lower sides of the left end inside the first arch rod.

[0006] A limiting strip is fixedly connected to the outer side of the first arch rod. The limiting strip is parallel to the first arch rod, and there are two limiting strips in total. The two limiting strips are fixedly connected to the front and rear sides of the first arch rod in opposite directions.

[0007] In a preferred embodiment, a transverse groove is provided on the inner wall of the first arch rod. The transverse groove is a guide slot. There are four guide slots in total, and each pair of longitudinally adjacent guide slots forms a group.

[0008] In a preferred embodiment, the two sets of guide slots are opened opposite each other on the front and rear sides of the inner wall of the first arch rod, and a fixing bolt is installed inside the first connecting hole, with a limit nut screwed onto the outside of the fixing bolt.

[0009] In a preferred embodiment, a second arch rod is connected to the left side of the first arch rod, and a limiting sleeve is fixedly connected to the outer side of the second arch rod. A slot is provided in the limiting sleeve on the side near the first arch rod, and the slot matches the limiting insert.

[0010] In a preferred embodiment, the limiting sleeve is provided in two places, and the two limiting sleeves are fixedly connected to the front and rear sides of the second arch rod in opposite directions, and a constricted insertion tube is fixedly connected to the right side of the second arch rod.

[0011] In a preferred embodiment, the constricted tube matches the left opening of the first arch rod and is used to insert into the left opening of the first arch rod, and the interior of the constricted tube has two second connecting holes arranged in a linear array.

[0012] In a preferred embodiment, the second connecting hole matches the first connecting hole and is limited by a fixing bolt and a limiting nut. An anti-misalignment strip is fixedly connected to the outer side of the constricted tube. There are four anti-misalignment strips in total, with each pair of longitudinally adjacent anti-misalignment strips forming a group. The two groups of anti-misalignment strips are fixedly connected to the front and rear sides of the constricted tube, respectively, and the two groups of anti-misalignment strips match the guide slots opened on the inner wall of the first arch rod.

[0013] After using the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a three-dimensional limiting system is constructed by the lateral guiding and limiting of the guide slot and the anti-misalignment insert, the longitudinal limiting of the limiting insert and the limiting sleeve, and the axial locking of the fixing bolt and the limiting nut. Compared with the traditional bolt connection that relies on a single point of axial fastening, it can effectively resist the wind, gravity and other external forces commonly found in the construction of agricultural greenhouses, avoid loosening or misalignment at the connection, and solve the problem of insufficient connection stability in the prior art.

[0015] 2. In this utility model, the anti-misalignment insert and guide slot, and the limiting insert and limiting sleeve are all modularly connected, and positioning can be completed quickly without professional tools; the fixing bolt and limiting nut are easy to disassemble and assemble, greatly reducing the difficulty of construction. Compared with the limitations of traditional welding methods that require professional equipment and technicians, this structure can significantly improve the installation efficiency. Moreover, the components can be separated by simply loosening the limiting nut during disassembly, which is convenient for the later maintenance, structural adjustment or reuse of the greenhouse, and solves the problems of complex construction and inconvenient maintenance in the prior art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the disassembled front side view of the present invention;

[0018] Figure 2 This is a schematic diagram of the combined structure of the first arch rod and the limiting insert of this utility model;

[0019] Figure 3 This is a schematic diagram of the combined structure of the second arch rod and the locking insert of this utility model;

[0020] Figure 4 This is a schematic diagram of the combined structure of the first arch rod and the limiting insert of this utility model;

[0021] Figure 5 This is a schematic diagram of the left-side structure of this utility model;

[0022] Figure 6 This is a top view of the structure of this utility model;

[0023] In the figure, 1 is the first arch rod; 101 is the first connecting hole; 1011 is the limiting insert; 2 is the guide slot; 201 is the fixing bolt; 2011 is the limiting nut; 3 is the second arch rod; 301 is the limiting sleeve; 3011 is the constricted insert; 3012 is the second connecting hole; and 3013 is the anti-misalignment insert. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-6 As shown, an arch rod connection structure includes: a first arch rod 1, the first arch rod 1 having a first connecting hole 101 inside, there are two first connecting holes 101, and the two first connecting holes 101 are arranged in a longitudinal array on the upper and lower sides of the left end inside the first arch rod 1.

[0026] A limiting insert 1011 is fixedly connected to the outer side of the first arch rod 1. The limiting insert 1011 is parallel to the first arch rod 1, and there are two limiting inserts 1011 in total. The two limiting inserts 1011 are fixedly connected to the front and rear sides of the first arch rod 1 in opposite directions.

[0027] The inner wall of the first arch rod 1 is provided with a transverse groove, which is a guide slot 2. There are four guide slots 2 in total. Each pair of longitudinally adjacent guide slots 2 is a group. The two groups of guide slots 2 are opened opposite each other on the front and rear sides of the inner wall of the first arch rod 1. A fixing bolt 201 is installed inside the first connecting hole 101, and a limit nut 2011 is screwed onto the outside of the fixing bolt 201.

[0028] The first arch rod 1 is connected to the left side of the second arch rod 3. The outer side of the second arch rod 3 is fixedly connected to the limiting sleeve 301. The limiting sleeve 301 has a slot on the side near the first arch rod 1. The slot matches the limiting insert 1011. There are two limiting sleeves 301 in total. The two limiting sleeves 301 are fixedly connected to the front and rear sides of the second arch rod 3 in opposite directions. The right side of the second arch rod 3 is fixedly connected to the constricted insert 3011.

[0029] The constricted insertion tube 3011 matches the left opening of the first arch rod 1 and is used to insert into the left opening of the first arch rod 1. The constricted insertion tube 3011 has two second connecting holes 3012 arranged in a linear array inside. The second connecting holes 3012 match the first connecting holes 101 and are limited by the fixing bolts 201 and the limiting nuts 2011. The constricted insertion tube 3011 is fixedly connected to the outside of the constricted insertion tube 3011. There are four anti-misalignment insertion strips 3013. Each pair of longitudinally adjacent anti-misalignment insertion strips 3013 forms a group. The two groups of anti-misalignment insertion strips 3013 are fixedly connected to the front and rear sides of the constricted insertion tube 3011, respectively. The two groups of anti-misalignment insertion strips 3013 match the guide slots 2 opened on the inner wall of the first arch rod 1.

[0030] When in use, during connection, align the constricted insertion tube 3011 on the right side of the second arch rod 3 with the opening on the left side of the first arch rod 1. The anti-misalignment insert 3013 on the outer side of the constricted insertion tube 3011 is embedded in the guide slot 2 on the inner wall of the first arch rod 1. Since the guide slot 2 is set up in pairs of longitudinally adjacent locations and is opened in opposite directions on the front and rear sides of the inner wall of the first arch rod 1, and the two sets of four anti-misalignment inserts 3013 are arranged on the front and rear sides of the constricted insertion tube 3011, the two work together to form a lateral limiting guide structure, ensuring that the constricted insertion tube 3011 is smoothly inserted into the first arch rod 1 in the preset direction, and avoiding circumferential misalignment during the insertion process.

[0031] The limiting inserts 1011 on the front and rear sides of the first arch rod 1 are simultaneously inserted into the slots of the limiting sleeves 301 on the front and rear sides of the second arch rod 3 near the first arch rod 1. The limiting inserts 1011 and the slots of the limiting sleeves 301 match to form a longitudinal limiting structure, preventing the first arch rod 1 and the second arch rod 3 from relative displacement in the vertical direction, and further fixing their relative positions.

[0032] When the constricted insertion tube 3011 is fully inserted into the first arch rod 1, the second connecting hole 3012 inside the constricted insertion tube 3011 is precisely aligned with the first connecting hole 101 inside the first arch rod 1 (two on each of the upper and lower sides). At this time, the fixing bolt 201 is passed through the first connecting hole 101 and the corresponding second connecting hole 3012 in sequence. Then, the limiting nut 2011 is screwed on the outside of the fixing bolt 201. By tightening the limiting nut 2011, the two ends of the fixing bolt 201 generate clamping force on the first arch rod 1 and the second arch rod 3 respectively, so that the two are tightly connected into one.

[0033] In the above structure, the cooperation between the guide slot 2 and the anti-misalignment insert 3013 restricts lateral displacement, the cooperation between the limiting insert 1011 and the limiting sleeve 301 restricts longitudinal displacement, and the connection between the fixing bolt 201 and the limiting nut 2011 provides axial locking force. The three work together to form a three-dimensional limiting system, ensuring that the first arch rod 1 and the second arch rod 3 do not move relative to each other after connection, thus achieving a stable and reliable connection effect.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An arch-rod connection structure, comprising a first arch rod (1), characterized in that, The first arch rod (1) has a first connecting hole (101) inside. There are two first connecting holes (101), and the two first connecting holes (101) are arranged in a longitudinal array on the upper and lower sides of the left end inside the first arch rod (1). A limiting insert (1011) is fixedly connected to the outer side of the first arch rod (1). The limiting insert (1011) is parallel to the first arch rod (1), and there are two limiting inserts (1011). The two limiting inserts (1011) are fixedly connected to the front and rear sides of the first arch rod (1) in opposite directions.

2. The arch rod connection structure according to claim 1, characterized in that, The inner wall of the first arch rod (1) is provided with a transverse groove, which is a guide slot (2). There are four guide slots (2), and each pair of longitudinally adjacent guide slots (2) form a group.

3. The arch rod connection structure according to claim 2, characterized in that, The two sets of guide slots (2) are opened opposite each other on the front and rear sides of the inner wall of the first arch rod (1), and a fixing bolt (201) is installed inside the first connecting hole (101), and a limit nut (2011) is screwed on the outside of the fixing bolt (201).

4. The arch rod connection structure according to claim 1, characterized in that, The left side of the first arch rod (1) is connected to the second arch rod (3), and the outer side of the second arch rod (3) is fixedly connected to the limiting sleeve (301). The limiting sleeve (301) has a slot on the side near the first arch rod (1), and the slot matches the limiting insert (1011).

5. The arch rod connection structure according to claim 4, characterized in that, The limiting sleeve (301) is provided in two places, and the two limiting sleeves (301) are fixedly connected to the front and rear sides of the second arch rod (3) in opposite directions, and a constricted insertion tube (3011) is fixedly connected to the right side of the second arch rod (3).

6. The arch rod connection structure according to claim 5, characterized in that, The constricted insertion tube (3011) matches the left opening of the first arch rod (1) and is used to insert into the left opening of the first arch rod (1). The constricted insertion tube (3011) has two second connecting holes (3012) arranged in a straight line inside.

7. The arch rod connection structure according to claim 6, characterized in that, The second connecting hole (3012) matches the first connecting hole (101) and is limited by the fixing bolt (201) and the limiting nut (2011). The outer side of the constricted tube (3011) is fixedly connected with an anti-dislocation strip (3013). There are four anti-dislocation strips (3013). Each pair of longitudinally adjacent anti-dislocation strips (3013) forms a group. The two groups of anti-dislocation strips (3013) are fixedly connected to the front and rear sides of the constricted tube (3011). The two groups of anti-dislocation strips (3013) match the guide slots (2) opened on the inner wall of the first arch rod (1).

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