Stand column structure of agricultural greenhouse

Abstract

The utility model belongs to the technical field of agricultural greenhouses, and particularly relates to an agricultural greenhouse stand column structure which comprises a first supporting rod, a second supporting rod is arranged in the first supporting rod in a sliding mode, a cavity is formed in the first supporting rod, and a lifting mechanism is arranged in the cavity. Through cooperation of a moving pipe, a first U-shaped block, a second U-shaped block, a strip-shaped plate, a limiting plate and a thin film supporting strip, in the using process, a thin film can be laid at the upper ends of a plurality of stand column structures provided by the utility model, when more fallen leaves or accumulated snow are accumulated at the upper end of the thin film, the thin film supporting strip can be directly adjusted by adjusting the strip-shaped plate and pulling the thin film supporting strip, and the thin film can be conveniently and rapidly stored. And fallen leaves or accumulated snow accumulated at the upper end of the thin film can slide off conveniently, and cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural greenhouses, in particular to a column structure of an agricultural greenhouse. Background Art

[0002] Agricultural greenhouses are constructed on-site using steel pipe materials. Covering the frame with insulation film, sunshade nets, insect-proof nets, and other coverings is used to isolate the interior of the greenhouse from the outside environment and control the temperature inside the greenhouse to create an environment suitable for crop growth.

[0003] However, the existing greenhouse column structure still has the following technical problems when in use:

[0004] Since the existing column structure is built with materials such as steel pipes, its later shape is difficult to change. When there are a lot of fallen leaves piled up on the upper end of the greenhouse or a lot of snow piled up in winter, in order to prevent the fallen leaves and snow from damaging the greenhouse, it can only be cleaned manually. However, since the inclination angle of the columns composed of steel pipes is not convenient to change, the fallen leaves and snow are difficult to clean.

[0005] Therefore, a column structure of an agricultural greenhouse is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a column structure for an agricultural greenhouse to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a column structure for an agricultural greenhouse, comprising a first support rod, a second support rod being slidably arranged inside the first support rod, a cavity being opened inside the first support rod, a lifting mechanism being arranged inside the cavity, a fixed tube being fixedly sleeved on the upper end of the outer wall of the second support rod, support plates being fixed on the left and right sides of the fixed tube, rotating blocks being rotatably arranged inside the two support plates via shaft pins, and film support strips being fixed on the upper sides of the two rotating blocks;

[0008] A moving tube is slidingly provided on the outer wall of the second support rod, and a first U-shaped block is fixed on the left and right sides of the moving tube, and a second U-shaped block is fixed on the lower sides of the two film support strips, and a strip plate is provided between the two first U-shaped blocks and the two second U-shaped blocks for joint rotation via an axle pin, and a limiting plate is fixed on the front and rear sides of the moving tube, and a limiting bolt is threaded on the side wall of the limiting plate, and the rear end of the limiting bolt is threadedly connected to the side wall of the second support rod, and threaded holes are provided on the front and rear sides of the second support rod at the lower ends of the two limiting bolts.

[0009] Preferably, support frames are fixed to the left and right lower ends of the first support rod, and reinforcement rods are slidably provided on the side walls of the two support frames.

[0010] Preferably, the lifting mechanism includes a fixed plate, which is fixed inside the cavity, and a screw rod is rotatably provided at the lower end of the fixed plate through a bearing, and the lower end of the screw rod wall is fixedly sleeved with a first bevel gear, and a transmission rod is rotatably provided on the right side of the first support rod, and a handle is fixed on the right end of the transmission rod, and a second bevel gear is fixedly sleeved on the left end of the transmission rod, and the first bevel gear and the second bevel gear are meshed, and a lifting block is threaded on the rod wall of the screw rod, and symmetrical lifting rods are fixed on the upper side wall of the lifting block, and the two lifting rods both extend through the fixed plate to the upper end and are fixedly connected to the lower side of the second support rod.

[0011] Preferably, handles are fixed to the side walls of the two limiting plates.

[0012] Preferably, rubber protective strips are fixed to the upper sides of the two film support strips.

[0013] Preferably, the two film support strips are both in the shape of arc-shaped plates inclined toward both ends.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Through the coordination among the movable tube, the first U-shaped block, the second U-shaped block, the strip plate, the limit plate and the film support strip, during use, the film will be laid on the upper ends of multiple column structures mentioned in the present invention. When there are more fallen leaves or snow piled up on the upper end of the film, the film support strip can be directly adjusted by adjusting the strip plate and pulling the film support strip, so that the film support strip can be tilted, so that the fallen leaves or snow piled up on the upper end of the film can slide down, making it easier to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 Front cross-sectional view of

[0018] Figure 3 It is a schematic diagram of the top view of the fixed tube, support plate and rotating block;

[0019] Figure 4 It is a schematic diagram of the right view structure of the limiting plate.

[0020] In the figure: 1 first support rod, 2 second support rod, 3 fixed tube, 4 support plate, 5 rotating block, 6 film support strip, 7 moving tube, 8 first U-shaped block, 9 second U-shaped block, 10 strip plate, 11 limit plate, 12 support frame, 13 reinforcement rod, 14 fixed plate, 15 screw rod, 16 transmission rod, 17 handle, 18 lifting block, 19 lifting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Example:

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A column structure for an agricultural greenhouse comprises a first support rod 1, a second support rod 2 being slidingly arranged inside the first support rod 1, a cavity being opened inside the first support rod 1, a lifting mechanism being arranged inside the cavity, a fixed tube 3 being fixedly sleeved on the upper end of the outer wall of the second support rod 2, a support plate 4 being fixed on the left and right sides of the fixed tube 3, a rotating block 5 being rotatably arranged inside the two support plates 4 through an axle pin, a film support strip 6 being fixed on the upper side of the two rotating blocks 5, a film needing to be arranged at the upper end of the multiple column structures mentioned in the present invention, and in order to ensure that the film will not be blown up by strong winds during use, it can be pressed and fixed by a heavy object;

[0026] The outer wall of the second support rod 2 is slidably provided with a moving pipe 7, the left side and the right side of the moving pipe 7 are fixedly provided with first U-shaped blocks 8, the lower sides of the two film support strips 6 are fixedly provided with second U-shaped blocks 9, the two first U-shaped blocks 8 and the two second U-shaped blocks 9 are rotatably provided with strip-shaped plates 10 through shaft pins, the front side and the rear side of the moving pipe 7 are fixedly provided with limiting plates 11, the side walls of the limiting plates 11 are threadedly provided with limiting bolts, the rear ends of the limiting bolts are threadedly connected with the side walls of the second support rod 2, and the front sides and the rear sides of the second support rod 2 are provided with threaded holes at the lower ends of the two limiting bolts.

[0027] The left side and the right side lower ends of the first support rod 1 are fixedly provided with support frames 12, the side walls of the two support frames 12 are slidably provided with reinforcing rods 13, and the first support rod 1 can be directly welded between the concrete and the ground or fixed between the concrete and the ground through cooperation of the support frames 12 and the reinforcing rods 13.

[0028] The lifting mechanism comprises a fixed plate 14 fixedly arranged in the cavity, a lead screw 15 rotatably arranged at the lower end of the fixed plate 14 through a bearing, a first bevel gear fixedly sleeved at the lower end of the rod wall of the lead screw 15, a transmission rod 16 rotatably arranged at the right side of the first support rod 1, a handle 17 fixedly arranged at the right end of the transmission rod 16, a second bevel gear fixedly sleeved at the left end of the transmission rod 16, the first bevel gear and the second bevel gear being engaged with each other, a lifting block 18 threadedly arranged on the rod wall of the lead screw 15, symmetrical lifting rods 19 fixedly arranged on the upper side wall of the lifting block 18, the two lifting rods 19 extending to the upper ends through the fixed plate 14 and being fixedly connected with the lower side of the second support rod 2, and the lifting mechanism being capable of adjusting the height of the film support strip 6, so as to meet the construction of greenhouses of different heights.

[0029] The side walls of the two limiting plates 11 are fixedly provided with handles, and the positions of the moving pipe 7 are adjusted by pulling the handles downward through two hands.

[0030] The upper sides of the two film support strips 6 are fixedly provided with rubber protection strips, so that the film is not damaged due to abrasion when the film contacts the film support strip 6.

[0031] The two film support strips 6 are arc-shaped plates inclined to both ends, and the upper surfaces are inclined, so as to facilitate the sliding of fallen leaves or snow on the upper end of the film.

[0032] Working principle:

[0033] When in use, the first supporting rod 1 is fixed by the cooperation of the supporting frame 12 and the reinforcing rod 13, the height of the film supporting strip 6 is adjusted according to the construction requirement of the greenhouse, the handle 17 is rotated, the handle 17 drives the left end transmission rod 16 to rotate, the transmission rod 16 drives the left end second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the lead screw 15 to rotate, the lead screw 15 drives the lifting block 18 connected with the rod wall by threads to move upwards, the lifting block 18 drives the two lifting rods 19 on the upper side to move upwards, the two lifting rods 19 drive the second supporting rod 2 on the upper end to move upwards, the film is laid on the upper end of the plurality of the column structures mentioned in the new type, and the positions, where the two ends of the film are in contact with the ground, need to be pressed by the soil cover;

[0034] When the upper end of the film accumulates a large amount of fallen leaves and snow, in order to avoid the influence on the film, the limiting function of the limiting bolt can be released, the pull handle is pulled downwards, the pull handle drives the limiting plate 11 and the moving pipe 7 to move downwards, the moving pipe 7 drives the first U-shaped block 8 of the side wall to move, the first U-shaped block 9 drives the strip-shaped plate 10 and the second U-shaped block 9 to move, the second U-shaped block 9 drives the film supporting strip 6 to incline, so that when the inclination angle becomes larger, the fallen leaves or snow accumulated on the upper end can more easily slide down, and the cleaning is facilitated.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any figure reference in the claims should not be regarded as limiting the claims.

[0036] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A column structure for an agricultural greenhouse, comprising a first support rod (1), characterized in that: A second support rod (2) is slidably provided inside the first support rod (1), a cavity is provided inside the first support rod (1), a lifting mechanism is provided inside the cavity, a fixed tube (3) is fixedly sleeved on the upper end of the outer wall of the second support rod (2), support plates (4) are fixed on the left and right sides of the fixed tube (3), a rotating block (5) is rotatably provided inside the two support plates (4) via an axle pin, and a film support strip (6) is fixed on the upper side of the two rotating blocks (5); A movable tube (7) is slidingly provided on the outer wall of the second support rod (2), a first U-shaped block (8) is fixed on the left and right sides of the movable tube (7), a second U-shaped block (9) is fixed on the lower sides of the two film support strips (6), a strip plate (10) is provided between the two first U-shaped blocks (8) and the two second U-shaped blocks (9) for common rotation via an axle pin, a limiting plate (11) is fixed on the front and rear sides of the movable tube (7), a limiting bolt is threadedly provided on the side wall of the limiting plate (11), the rear end of the limiting bolt is threadedly connected to the side wall of the second support rod (2), and threaded holes are provided on the front and rear sides of the second support rod (2) at the lower ends of the two limiting bolts.

2. The column structure of an agricultural greenhouse according to claim 1, characterized in that: Support frames (12) are fixed to the left and right lower ends of the first support rod (1), and reinforcement rods (13) are slidably provided on the side walls of the two support frames (12).

3. The column structure of an agricultural greenhouse according to claim 1, characterized in that: The lifting mechanism comprises a fixed plate (14), the fixed plate (14) is fixed inside the cavity, the lower end of the fixed plate (14) is rotatably provided with a screw rod (15) through a bearing, the lower end of the rod wall of the screw rod (15) is fixedly sleeved with a first bevel gear, the right side of the first support rod (1) is rotatably provided with a transmission rod (16), the right end of the transmission rod (16) is fixedly provided with a handle (17), the left end of the transmission rod (16) is fixedly sleeved with a second bevel gear, the first bevel gear and the second bevel gear are meshed, the rod wall of the screw rod (15) is threadedly provided with a lifting block (18), the upper side wall of the lifting block (18) is fixed with symmetrical lifting rods (19), and the two lifting rods (19) both penetrate the fixed plate (14) and extend to the upper end and are fixedly connected to the lower side of the second support rod (2).

4. The column structure of an agricultural greenhouse according to claim 1, characterized in that: Handles are fixed to the side walls of the two limiting plates (11).

5. The column structure of an agricultural greenhouse according to claim 1, characterized in that: Rubber protection strips are fixed on the upper sides of the two film support strips (6).

6. The column structure of an agricultural greenhouse according to claim 1, characterized in that: The two film support strips (6) are both in the shape of arc-shaped plates inclined toward both ends.

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