CN103225371A

CN103225371A - Vegetable greenhouse snow protection device and energy-consumption-free snow removal device

Info

Publication number: CN103225371A
Application number: CN2013101912630A
Authority: CN
Inventors: 胡再国
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2013-05-22
Filing date: 2013-05-22
Publication date: 2013-07-31
Anticipated expiration: 2033-05-22
Also published as: CN103225371B

Abstract

The invention discloses a vegetable greenhouse snow protection device and an energy-consumption-free snow removal device. In order to prevent accumulated snow from directly acting on a vegetable greenhouse, the invention discloses the vegetable greenhouse snow protection device and the energy-consumption-free snow removal device. According to the technical scheme, the vegetable greenhouse snow protection device is arranged on a vegetable greenhouse; supporting rods are fixed on the ground at two ends of the vegetable greenhouse; rolling bearings at two ends of rotating shafts are fixed in through holes of the supporting rods; two tail ends of the rotating shafts which penetrate through the through holes are respectively connected with elastic rods; the middle of each elastic rod is arranged on the adjacent supporting rod on the outer side; the tail ends of the two elastic rods are connected with a connecting rod; and an accumulated snow surface is fixed on a plane formed by encircling the elastic rods, the rotating shafts and the connecting rods. The devices have the beneficial effects that the snow protection device is arranged on the vegetable greenhouse, and the accumulated snow surface is arranged in a layered mode; and the accumulated snow surface is inclined, so that the accumulated snow can be facilitated to moving downwards, two ends of the accumulated snow surface are provided with the elastic rods, the accumulated snow is facilitated to moving downwards and forwards due to vibration of the elastic rods, and the accumulated snow is facilitated to dropping on the ground on the side face of the vegetable greenhouse.

Description

A kind of green house of vegetables snow defence device and do not have the energy consumption snow-removing device

Technical field

The present invention relates to the area of maintenance of green house of vegetables, particularly avoid winter snow cover to press the green house of vegetables that collapses.

Background technology

Winter, the severe snow that arrives in a sudden, severe snow is collected at the top of green house of vegetables, because accumulated snow is not easy to move, when the weight of piling up accumulated snow exceeds the ability to bear of green house of vegetables, then green house of vegetables will collapse, cause vegetable grower's enormous economic loss, have influence on skyrocketing and the timely supply of fresh vegetables of local dish valency, greatly influence local resident's normal life, also the enthusiasm that plants vegetables of serious blow vegetable grower.

Summary of the invention

For avoiding accumulated snow to directly act on green house of vegetables, the present invention designs a kind of green house of vegetables snow defence device and does not have the energy consumption snow-removing device.

The present invention realizes that the technical scheme that goal of the invention adopts is: a kind of green house of vegetables snow defence device and do not have the energy consumption snow-removing device, it is characterized in that: green house of vegetables snow defence device is arranged in the green house of vegetables top, form by bracing frame and accumulated snow face, bracing frame is by support bar, flexible rod, and through hole, axis of rotation and connecting rod are formed; Support bar is fixed on ground, the rolling bearing of rotating shaft terminal is fixed in the through hole of support bar, two ends that pass the axis of rotation behind the through hole connect a flexible rod respectively, on the support bar of next-door neighbour outside the centre of flexible rod is shelved on, end is a movable end, the end of two flexible rod connects a connecting rod, and flexible rod becomes 30-45 degree angle with horizontal plane; The accumulated snow face is fixed on the frame that axis of rotation, two flexible rod and connecting rod surround; When accumulated snow deposits to certain thickness, accumulated snow compressing flexible rod on the accumulated snow face, cause the bending of flexible rod movable end, after crooked angle increases, accumulated snow gravitate on the accumulated snow face drops suddenly, the strength that acts on flexible rod reduces suddenly, flexible rod is vibrated, promote the accumulated snow of accumulated snow face to move down forward, the accumulated snow of upper strata accumulated snow face drops to down one deck, helps exciting lower floor's accumulated snow face to vibrate under the effect of flexible rod, and wind accumulated snow face also can excite the accumulated snow face to vibrate under the effect of flexible rod, promote accumulated snow to shift the ground at the green house of vegetables edge that finally drops gradually downwards.The accumulated snow face is the grid of transparent nylon forming materials, and grid is a grid, and the hole length of side of grid is 1-2mm, and the nylon width of adjacent square is that 0.5-2mm, thickness are 0.5-2mm.The vertical drop of adjacent two accumulated snow faces is a 1-2 rice.

The invention has the beneficial effects as follows: there is the snow defence device top of green house of vegetables, the snow defence device has the accumulated snow face of inclination, the layering of accumulated snow face is provided with, the accumulated snow face tilt helps accumulated snow and moves down, the flexible rod in the two ends of accumulated snow face, and the accumulated snow of the dropping suddenly of accumulated snow, wind accumulated snow face and upper strata accumulated snow face falls down, the strength sudden change that these factors cause, to cause the vibration of flexible rod, vibration promotes that further accumulated snow moves down forward, promotes that accumulated snow drops on the ground of green house of vegetables side.The accumulated snow face is subjected to blocking of upper strata accumulated snow face near the part of rotating shaft, accumulated snow is less, and main accumulated snow concentrates on the part of the close connecting rod of accumulated snow face, just the movable end of close flexible rod, the vibration of flexible rod similarly is with dustpan, promotes accumulated snow forwards to move; The accumulated snow face is a grid, can reduce fine effect to wind-force, reduces the reflex to illumination simultaneously.

Description of drawings

Fig. 1 is a green house of vegetables snow defence appliance stand schematic diagram.Fig. 2 is a snow defence device schematic perspective view.Fig. 3 is that the accumulated snow face is subjected to accumulated snow compressing and the accumulated snow schematic diagram that drops.

Wherein, 1, flexible rod, 2, support bar, 3, through hole, 4, axis of rotation, 5, connecting rod, 6, accumulated snow face.

The specific embodiment

Green house of vegetables snow defence device is arranged in the green house of vegetables top, form by bracing frame and accumulated snow face 6, bracing frame is by support bar 2, flexible rod 1, through hole 3, axis of rotation 4 and connecting rod 5 are formed, support bar 2 is fixed on ground, the rolling bearing at axis of rotation 4 two ends is fixed in the through hole 3 of support bar 2, two ends that pass the axis of rotation 4 behind the through hole 3 connect a flexible rod 1 respectively, the top of the support bar 2 of the next-door neighbour outside the centre of flexible rod 1 is shelved on, end is unfixing, and just end is a movable end, and the end of two flexible rod connects a connecting rod 5, flexible rod 1 becomes 30-45 degree angle with horizontal plane, preferred 30 degree angles; Accumulated snow face 6 is fixed on the frame that axis of rotation 4, two flexible rod 1 and connecting rod 5 surround, and the vertical drop of adjacent two accumulated snow faces 6 is a 1-2 rice; When accumulated snow deposits to certain thickness, accumulated snow compressing flexible rod 1 on the accumulated snow face 6, cause flexible rod 1 movable end bending (as Fig. 3), flexible rod 1 bending, whole accumulated snow face 6 also is bent downwardly, after crooked angle increases, accumulated snow gravitate on the accumulated snow face 6 drops suddenly, the strength that acts on flexible rod reduces suddenly, flexible rod 1 is vibrated (shown in the frame of broken lines of Fig. 3), promote the accumulated snow of accumulated snow face 6 to move down forward, the accumulated snow of upper strata accumulated snow face 6 drops to down one deck, helps exciting lower floor's accumulated snow face 6 to vibrate under the effect of flexible rod 1, and wind accumulated snow face 6 also can excite accumulated snow face 6 to vibrate under the effect of flexible rod 1, promote accumulated snow to shift the ground at the green house of vegetables edge that finally drops gradually downwards.

For the influence that reduces wind-force with reduce the blocking of sunlight, the accumulated snow face adopts the grid of nylon material moulding, because snowflake is a solid, a certain size is arranged, can be deposited on the grid, so grid is a grid, the grid hole length of side is 2mm, and the nylon width of adjacent square is that 1mm, thickness are 1mm.

Claims

1. a green house of vegetables snow defence device and do not have the energy consumption snow-removing device, it is characterized in that: green house of vegetables snow defence device is arranged in the green house of vegetables top, form by bracing frame and accumulated snow face (6), bracing frame is by support bar (2), flexible rod (1), and through hole (3), axis of rotation (4) and connecting rod (5) are formed; Support bar (2) is fixed on ground, the rolling bearing at axis of rotation (4) two ends is fixed in the through hole of support bar (3), two ends that pass the axis of rotation behind the through hole (3) connect a flexible rod (1) respectively, on the support bar (2) of next-door neighbour outside the centre of flexible rod (1) is shelved on, end is a movable end, the end of two flexible rod connects a connecting rod (5), and flexible rod (1) becomes 30-45 degree angle with horizontal plane; Accumulated snow face (6) is fixed on the frame that axis of rotation (4), two flexible rod (1) and connecting rod (5) surround; When accumulated snow deposits to certain thickness, accumulated snow compressing flexible rod (1) on the accumulated snow face (6), cause flexible rod (1) movable end bending, after crooked angle increases, accumulated snow gravitate on the accumulated snow face (6) drops suddenly, the strength that acts on flexible rod reduces suddenly, flexible rod (1) is vibrated, promote the accumulated snow of accumulated snow face (6) to move down forward, the accumulated snow of upper strata accumulated snow face (6) drops to down one deck, help exciting lower floor's accumulated snow face (6) under the effect of flexible rod (1), to vibrate, wind accumulated snow face (6) also can excite accumulated snow face (6) to vibrate under the effect of flexible rod (1), promote accumulated snow to shift the ground at the green house of vegetables edge that finally drops gradually downwards.

2. a kind of green house of vegetables snow defence device according to claim 1 and do not have the energy consumption snow-removing device, it is characterized in that: accumulated snow face (6) is the grid of transparent nylon forming materials, grid is a grid, the hole length of side of grid is 1-2mm, and the nylon width of adjacent square is that 0.5-2mm, thickness are 0.5-2mm.

3. a kind of green house of vegetables snow defence device according to claim 1 and do not have the energy consumption snow-removing device, it is characterized in that: the vertical drop of adjacent two accumulated snow faces (6) is a 1-2 rice.