Delayed closing overhead door for greenhouse

Abstract

The utility model discloses a delayed closing overhead door for a greenhouse, which comprises a door frame and a laser transceiver, guide rails are arranged on the inner walls of the two sides of the door frame, slender rods are fixedly mounted on the inner walls of one sides of the guide rails, a fixing groove is formed in the bottom of the laser transceiver, and a fixing rod is slidably mounted in the fixing groove. One end of the fixing rod extends into the fixing groove, the other end of the fixing rod extends out of the fixing groove, the end, extending out of the fixing groove, of the fixing rod is fixedly connected with the top of the thin rod, a rotating groove is formed in the inner wall of one side of the guide rail, one end of a short rod is fixedly installed on the inner wall of the bottom of the rotating groove, and a first rotating shaft is rotatably installed at the other end of the short rod. According to the utility model, the laser transceivers are additionally arranged in the gaps of the sliding rails on the two sides of the door plate or the roller shutter, after the door is lifted, the laser transceivers start to work, and when laser is sensed to be blocked by a transport vehicle, a delay closing mechanism of the door does not start to time until the transceivers normally receive laser signals.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting doors, in particular to a delayed closing lifting door used in a greenhouse. Background Art

[0002] In today's era, small farmers are gradually being eliminated, and agriculture is developing towards modernization and mechanization. Agricultural greenhouses are often divided into different areas to meet the production needs of different crops. The entrances and exits are often equipped with lifting doors (delayed closing type), but the operation mode is relatively rigid, and they fall immediately when the set time is reached, which cannot flexibly adapt to the needs of transportation.

[0003] However, there are still some problems when using the existing lifting door:

[0004] There are still the following problems in actual use:

[0005] The existing lifting doors have set closing and opening times during use. It is possible that the doors may be closed when the truck is transporting goods, which may cause movement hazards.

[0006] In view of the above problems, an innovative design is carried out on the basis of the original lifting door. Utility Model Content

[0007] The purpose of the utility model is to provide a delayed closing lifting door for a greenhouse, so as to solve the door closing problem mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a delayed closing lifting door for a greenhouse, comprising a door frame and a laser transceiver, guide rails are provided on both inner walls of the door frame, a thin rod is fixedly installed on the inner wall of one side of the guide rail, a fixing groove is provided at the bottom of the laser transceiver, a fixing rod is slidably installed in the fixing groove, one end of the fixing rod extends into the fixing groove, the other end of the fixing rod extends out of the fixing groove, one end of the fixing rod extending out of the fixing groove is fixedly connected to the top of the thin rod, a rotating groove is provided on the inner wall of one side of the guide rail, one end of a short rod is fixedly installed on the inner wall of the bottom of the rotating groove, a first rotating shaft is rotatably installed on the other end of the short rod, one end of a shift rod is fixedly installed on the first rotating shaft, and the other end of the shift rod extends into the guide rail;

[0009] A sliding groove is provided on an inner wall of one side of the rotating groove, a sliding block is slidably installed in the sliding groove, a second rotating shaft is rotatably installed on one end of the sliding block, one end of a connecting rod is fixedly installed on the second rotating shaft, and a third rotating shaft is rotatably installed on the other end of the connecting rod;

[0010] One end of a thick rod is fixedly mounted on the top of the gear lever, and the other end of the thick rod is fixedly connected to the third rotating shaft;

[0011] A moving groove is provided on the top of the sliding block, and a moving block is slidably installed in the moving groove;

[0012] A limiting groove is provided on an inner wall of one side of the sliding groove, a limiting rod is slidably installed in the limiting groove, one end of the limiting rod extends into the limiting groove, and the other end of the limiting rod extends out of the limiting groove, and the top of the moving block is fixedly connected to the bottom of the limiting rod.

[0013] Preferably, the laser transceiver is located inside the guide rail.

[0014] By adopting the above technical solution, the laser transceiver can sense when a truck passes by and prevent the gate from closing in time.

[0015] Preferably, the gear lever extends to the bottom of the guide rail and contacts the top of the laser transceiver.

[0016] By adopting the above technical solution, the gear lever is used to fix the laser transceiver.

[0017] Preferably, one end of a first spring is fixedly mounted on the bottom of the sliding block, and the other end of the first spring is fixedly connected to the bottom inner wall of the sliding groove.

[0018] With the above technical solution, the first spring is used to drive the sliding block to reset after moving.

[0019] Preferably, the thick rod is located on one side of the top of the gear lever close to the first rotating shaft.

[0020] By adopting the above technical solution, the thick rod is used to connect the third rotating shaft and the gear lever.

[0021] Preferably, the moving block is located on a side of the moving groove close to the limiting groove.

[0022] With the above technical solution, the limit rod is used to fix the sliding block after it moves.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] By installing a laser transceiver in the gap of the sliding rails on both sides of the door panel or roller shutter, the laser transceiver starts working after the door is raised. When it senses that the laser is blocked by the transport vehicle, the delayed closing mechanism of the door will not start timing until the transceiver receives the laser signal normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure A part of the utility model;

[0027] Figure 3This is a schematic diagram of the structure B part of the utility model;

[0028] Figure 4 It is a schematic diagram of the structure C part of the utility model.

[0029] In the figure: 1. door frame; 2. guide rail; 3. thin rod; 4. fixed groove; 5. fixed rod; 6. rotating groove; 7. short rod; 8. gear lever; 9. sliding groove; 10. sliding block; 11. connecting rod; 12. thick rod; 13. moving groove; 14. moving block; 15. limit rod; 16. limit groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-4 The utility model provides a technical solution: a delayed closing lifting door for a greenhouse, comprising a door frame 1 and a laser transceiver 17, guide rails 2 are provided on the inner walls on both sides of the door frame 1, a thin rod 3 is fixedly installed on the inner wall of one side of the guide rail 2, a fixing groove 4 is provided at the bottom of the laser transceiver 17, a fixing rod 5 is slidably installed in the fixing groove 4, one end of the fixing rod 5 extends into the fixing groove 4, the other end of the fixing rod 5 extends out of the fixing groove 4, and the end of the fixing rod 5 extending out of the fixing groove 4 is fixedly connected to the top of the thin rod 3, a rotating groove 6 is provided on the inner wall of one side of the guide rail 2, one end of a short rod 7 is fixedly installed on the inner wall of the bottom of the rotating groove 6, and a first rotating shaft is rotatably installed on the other end of the short rod 7, one end of a gear lever 8 is fixedly installed on the first rotating shaft, and the other end of the gear lever 8 extends into the guide rail 2.

[0032] Combination Figure 4 As shown, a sliding groove 9 is opened on the inner wall of one side of the rotating groove 6, and a sliding block 10 is slidably installed in the sliding groove 9. A second rotating shaft is rotatably installed on one end of the sliding block 10, and one end of a connecting rod 11 is fixedly installed on the second rotating shaft. The other end of the connecting rod 11 is rotatably installed on the third rotating shaft, and one end of a thick rod 12 is fixedly installed on the top of the gear lever 8, and the other end of the thick rod 12 is fixedly connected to the third rotating shaft.

[0033] Combination Figure 4As shown, a moving groove 13 is provided at the top of the sliding block 10, and a moving block 14 is slidably installed in the moving groove 13. A limiting groove 16 is provided on the inner wall of one side of the sliding groove 9, and a limiting rod 15 is slidably installed in the limiting groove 16. One end of the limiting rod 15 extends into the limiting groove 16, and the other end of the limiting rod 15 extends out of the limiting groove 16. The top of the moving block 14 is fixedly connected to the bottom of the limiting rod 15.

[0034] Working principle of the utility model: when it is necessary to install the laser transceiver, first pull the limit rod 15 horizontally, the limit rod 15 disengages from the limit groove 16, and then pull the limit rod 15 upward, the limit rod 15 drives the moving block 14 and the moving groove 13 to move upward, the moving block 14 drives the sliding block 10 to move upward, the sliding block 10 drives the second rotating shaft to rotate and move upward, the second rotating shaft drives the connecting rod 11 to rotate, the connecting rod 11 drives the third rotating shaft, the third rotating shaft drives the thick rod 12 to rotate, the thick rod 12 drives the gear rod 8 to rotate, the gear rod 8 is put into the rotating groove 6, and then the laser transceiver is installed. The device 17 is placed on the fixed rod 5, and then the limit rod 15 is moved downward, the limit rod 15 drives the moving block 14 and the moving slot 13 to move upward, the moving block 14 drives the sliding block 10 to move upward, the sliding block 10 drives the second rotating shaft to rotate and move upward, the second rotating shaft drives the connecting rod 11 to rotate, the connecting rod 11 drives the third rotating shaft, the third rotating shaft drives the thick rod 12 to rotate, the thick rod 12 drives the gear rod 8 to rotate, and then the gear rod 8 contacts the top of the laser transceiver 17, and then the limit rod 15 is slid horizontally, and the limit rod 15 is stuck in the limit slot 16, so as to achieve the purpose of installation.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A delayed closing lifting door for a greenhouse, comprising a door frame (1) and a laser transceiver (17), Features: Guide rails (2) are provided on both inner walls of the door frame (1), a thin rod (3) is fixedly installed on one inner wall of the guide rail (2), a fixing groove (4) is provided at the bottom of the laser transceiver (17), a fixing rod (5) is slidably installed in the fixing groove (4), one end of the fixing rod (5) extends into the fixing groove (4), the other end of the fixing rod (5) extends out of the fixing groove (4), the end of the fixing rod (5) extending out of the fixing groove (4) is fixedly connected to the top of the thin rod (3), a rotating groove (6) is provided on one inner wall of the guide rail (2), one end of a short rod (7) is fixedly installed on the inner wall at the bottom of the rotating groove (6), the other end of the short rod (7) is rotatably installed with a first rotating shaft, one end of a shift rod (8) is fixedly installed on the first rotating shaft, and the other end of the shift rod (8) extends into the guide rail (2); A sliding groove (9) is provided on the inner wall of one side of the rotating groove (6), a sliding block (10) is slidably installed in the sliding groove (9), a second rotating shaft is rotatably installed on one end of the sliding block (10), one end of a connecting rod (11) is fixedly installed on the second rotating shaft, and a third rotating shaft is rotatably installed on the other end of the connecting rod (11); One end of a thick rod (12) is fixedly mounted on the top of the gear lever (8), and the other end of the thick rod (12) is fixedly connected to the third rotating shaft; A moving groove (13) is provided on the top of the sliding block (10), and a moving block (14) is slidably installed in the moving groove (13); A limiting groove (16) is provided on an inner wall of one side of the sliding groove (9), a limiting rod (15) is slidably installed in the limiting groove (16), one end of the limiting rod (15) extends into the limiting groove (16), and the other end of the limiting rod (15) extends out of the limiting groove (16), and the top of the moving block (14) is fixedly connected to the bottom of the limiting rod (15).

2. A delayed closing lifting door for a greenhouse according to claim 1, Features: The laser transceiver (17) is located inside the guide rail (2).

3. A delayed closing lifting door for a greenhouse according to claim 1, Features: The gear lever (8) extends to the bottom of the guide rail (2) and contacts the top of the laser transceiver (17).

4. A delayed closing lifting door for a greenhouse according to claim 1, Features: One end of a first spring is fixedly mounted on the bottom of the sliding block (10), and the other end of the first spring is fixedly connected to the bottom inner wall of the sliding groove (9).

5. A delayed closing lifting door for a greenhouse according to claim 1, Features: The thick rod (12) is located on one side of the top of the gear lever (8) close to the first rotating shaft.

6. A delayed closing lifting door for a greenhouse according to claim 1, Features: The moving block (14) is located on a side of the moving groove (13) close to the limiting groove (16).

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