Lock for granary air-tight door

Abstract

The utility model provides a lock for a granary air-tight door, and relates to the technical field of air-tight door locks. The lock for the granary air-tight door comprises a lock body and a locking structure. The locking structure is rotationally installed in the lock body and used for opening and sealing a granary airtight door. According to the lock for the granary air-tight door, the locking structure is installed in the lock body in a rotating mode, opening and sealing of the granary air-tight door are achieved, an operator can easily rotate the locking structure only by exerting small force, operation is simple, the leakproofness of the granary door is remarkably improved, and the granary air-tight door is convenient to use. The leakage of external gas, liquid or other substances is effectively prevented, and the stability and safety of the internal environment of the granary are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtight door technical field especially relates to a lock for granary airtight door. BACKGROUND

[0002] Airtight door is a kind of door that can completely close door, usually used to prevent gas, liquid or other substances from leaking or entering, airtight door is usually made of metal, plastic, glass and other materials, with good sealing performance, can effectively isolate indoor and outdoor environment, airtight door is widely used in chemical industry, pharmacy, food processing, biological laboratory and other fields to ensure the safety and health of working environment, in order to ensure the dryness of granary, the granary door generally adopts airtight door to prevent grain from being damaged by dampness.

[0003] The existing granary airtight door generally adopts gear and rack transmission mechanism to realize the opening and closing of door, but this design has some technical defects. If the gear engagement is too tight, it will affect the rotation flexibility. Conversely, in order to ensure its free movement, a certain space needs to be reserved on both sides during assembly, there will be a certain gap between the racks, which may cause the non-engagement of one side rack and the other side may be unable to push due to excessive engagement after long-term use, thereby affecting the airtightness of granary door.

[0004] In view of the above problems, the airtightness of traditional granary airtight door is poor. Therefore, how to improve the airtightness of granary airtight door is the technical problem to be solved at present. INVENTION CONTENTS

[0005] The technical problem solved by the utility model is that in order to solve the poor airtightness of granary airtight door in the prior art, the utility model provides a lock for granary airtight door, which rotates and installs the locking structure in the lock body to realize the opening and sealing of granary airtight door, simple operation, effectively improves the airtightness of granary airtight door, solves the poor airtightness of granary airtight door in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problem is:

[0007] A lock for granary airtight door, comprising:

[0008] Lock body and locking structure;

[0009] The locking structure is rotatably installed in the lock body to realize the opening and sealing of granary airtight door.

[0010] Optionally, the locking structure comprises bearing seat, rotating shaft, connecting sheet; the rotating shaft is fixed on the lock body through the bearing seat; the connecting sheet is provided with a center hole; the connecting sheet is hinged with the rotating shaft through the center hole.

[0011] Optionally, the locking structure comprises a connecting rod, the connecting rod comprising an upper connecting rod and a lower connecting rod;

[0012] One end of the upper connecting rod is hinged to one end of the connecting plate, and one end of the lower connecting rod is hinged to the other end of the connecting plate.

[0013] Optionally, the locking structure comprises a threaded rod, the threaded rod comprising an upper threaded rod and a lower threaded rod;

[0014] The other end of the upper connecting rod is hinged to one end of the upper threaded rod, and the other end of the lower connecting rod is hinged to one end of the lower threaded rod.

[0015] Optionally, the locking structure comprises a lead screw, the lead screw comprising an upper lead screw and a lower lead screw;

[0016] The other end of the upper threaded rod is hinged to one end of the upper lead screw, and the other end of the lower threaded rod is hinged to one end of the lower lead screw.

[0017] Optionally, the locking structure comprises a limiting rod.

[0018] Optionally, the locking structure further comprises a rotating hand wheel.

[0019] Optionally, the top opening of the lock body is provided with a fixing plate.

[0020] The beneficial effects of the present application are as follows:

[0021] The grain storehouse airtight door lock of the present application rotates and installs the locking structure in the lock body, realizes the opening and sealing of the grain storehouse airtight door, and the operator only needs to exert a small force to easily realize the action of rotating the locking structure, which is simple to operate, significantly improves the airtightness of the grain storehouse door, effectively prevents the leakage of external gas, liquid or other substances, and ensures the stability and safety of the internal environment of the grain storehouse. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in combination with the drawings and examples.

[0023] Figure 1 is a structure diagram of the grain storehouse airtight door lock of the present application Figure 1 ;

[0024] Figure 2 is a structure diagram of the grain storehouse airtight door lock of the present application Figure 2 ;

[0025] Figure 3 is an installation diagram of the grain storehouse airtight door lock of the present application

[0026] In the figure: 1 - door frame; 11 - upper card; 12 - lower card; 2 - door panel; 21 - upper limit piece; 22 - lower limit piece; 3 - lock body; 31 - fixed piece; 4 - locking structure; 41 - bearing seat; 42 - rotating shaft; 43 - connecting piece; 431 - center hole; 44 - connecting rod; 441 - upper connecting rod; 442 - lower connecting rod; 45 - threaded rod; 451 - upper threaded rod; 452 - lower threaded rod; 46 - lead screw; 461 - upper lead screw; 462 - lower lead screw; 47 - limit rod; 48 - rotating hand wheel. DETAILED DESCRIPTION

[0027] The utility model will be explained in further detail. The following described embodiments are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0028] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are explained in detail below in conjunction with the drawings.

[0029] In order to solve the poor sealing performance of the existing grain storehouse sealing door, the utility model provides a lock for grain storehouse sealing door, as shown in Figures 1-3 The lock for grain storehouse sealing door includes: lock body 3 and locking structure 4;Wherein, the locking structure 4 is rotatably installed in the lock body 3, and is used to realize the opening and sealing of the grain storehouse sealing door.

[0030] The lock for grain storehouse sealing door of the utility model realizes the opening and sealing of the grain storehouse sealing door by rotatably installing the locking structure in the lock body, and the operator only needs to exert a small force to easily realize the action of rotating the locking structure 4, which is simple to operate, so that the sealing performance of the grain storehouse door is significantly improved, effectively prevents the leakage of external gas, liquid or other substances, and ensures the stability and safety of the internal environment of the grain storehouse.

[0031] In the design of the traditional lock for grain storehouse sealing door, in order to ensure the up-down movement of the rack, it is necessary to reserve a certain space on both sides during assembly, which not only increases the complexity of assembly, but also may cause unstable sealing performance;The lock for grain storehouse sealing door of the utility model eliminates this requirement, so that the assembly of the lock for grain storehouse sealing door is more convenient and fast, and the long-term sealing performance and stability are ensured.

[0032] In addition, the traditional lock for the silo sealing door is difficult to fix the rack, which easily leads to the decrease of the sealing property of the door.

[0033] Specifically, to ensure the stability and reliability of the overall structure, the locking structure 4 preferably comprises a bearing seat 41, a rotating shaft 42 and a connecting piece 43, wherein the rotating shaft 42 is fixed to the lock body 3 through the bearing seat 41, and the connecting piece 43 is provided with a central hole 431, and the connecting piece 43 is hinged to the rotating shaft 42 through the central hole 431.

[0034] To improve the flexibility of the structure, the locking structure 4 preferably comprises a connecting rod 44, wherein the connecting rod 44 is in the shape of "L", and the connecting rod 44 comprises an upper connecting rod 441 and a lower connecting rod 442, one end of the upper connecting rod 441 is hinged to one end of the connecting piece 43, and one end of the lower connecting rod 442 is hinged to the other end of the connecting piece 43.

[0035] The locking structure 4 preferably comprises a threaded rod 45, wherein the threaded rod 45 comprises an upper threaded rod 451 and a lower threaded rod 452, the other end of the upper connecting rod 441 is hinged to one end of the upper threaded rod 451, and the other end of the lower connecting rod 442 is hinged to one end of the lower threaded rod 452.

[0036] The locking structure 4 preferably comprises a lead screw 46, wherein the lead screw 46 comprises an upper lead screw 461 and a lower lead screw 462, the other end of the upper threaded rod 451 is hinged to one end of the upper lead screw 461, and the other end of the lower threaded rod 452 is hinged to one end of the lower lead screw 462, so that the connection between the lead screw 46 and the threaded rod 45 is more stable.

[0037] The locking structure 4 preferably comprises a limiting rod 47, which is arranged at the opposite corners of the bearing seat 41 and is used for limiting the rotation of the connecting piece 43, so as to make the air tightness better.

[0038] In addition, according to the actual needs of the user, the upper limiting piece 21 and the lower limiting piece 22 can be installed on the silo door, which are respectively used for limiting the movement of the upper lead screw 461 and the lower lead screw 462 in the utility model, and in combination with the hinged connection between the connecting rod 44 and the threaded rod 45 in the utility model and the role of the limiting rod 47, the upper lead screw 461 and the lower lead screw 462 can be more accurately inserted into the upper card 11 and the lower card 12 installed on the door frame 1, so as to further improve the air tightness.

[0039] The locking structure 4 further comprises a rotating hand wheel 48, which is fixedly connected with the rotating shaft 42, so that the operation is more convenient, and the comfort and efficiency of the operation are improved.

[0040] The utility model discloses preferably the top opening of lock body 3 is equipped with fixed sheet 31, provides additional protection for the internal locking structure 4, reduces the direct influence of external factors to locking structure, strengthens the durability and protective property of structure.

[0041] When the granary needs to be closed, the operator first rotates the rotating hand wheel 48 clockwise, which drives the connecting piece 43 to rotate through the rotating shaft 42, so that the upper connecting rod 441 and the lower connecting rod 442 rotate towards each other, thereby driving the upper lead screw 461 and the lower lead screw 462 to move vertically up and down within the upper limiting piece 21 and the lower limiting piece 22, and thanks to the hinged design between the connecting rod 44 and the threaded rod 45 and the effect of the limiting rod 47, the upper lead screw 461 and the lower lead screw 462 can be accurately inserted into the upper card 11 and the lower card 12, completing the closing of the granary door panel 2.

[0042] When the granary door needs to be opened, the operator only needs to rotate the rotating hand wheel 48 counterclockwise, which will make the upper lead screw 461 and the lower lead screw 462 exit from the upper card 11 and the lower card 12, thereby realizing the opening of the granary door.

[0043] The utility model discloses a granary closing door, which can easily control the opening and sealing of the granary door through the rotating hand wheel 48 of the locking structure 4, greatly simplifying the operation process, ensuring the closing performance of the granary door, effectively preventing the leakage of external gas, liquid or other substances, and ensuring the stability and safety of the internal environment of the granary.

[0044] Based on the above ideal embodiments of the utility model, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A lock for a silo door, characterized in that Include: Lock body (3) and locking structure (4); The locking structure (4) is rotatably installed in the lock body (3), which is used to realize the opening and sealing of the granary airtight door.

2. The lock for a grain door as defined in claim 1 wherein, The locking structure (4) includes bearing seat (41), rotating shaft (42), connecting plate (43); the rotating shaft (42) is fixed on the lock body (3) through the bearing seat (41); the connecting plate (43) is provided with a center hole (431); the connecting plate (43) is hinged with the rotating shaft (42) through the center hole (431).

3. The lock for a grain door as defined in claim 2 wherein, The locking structure (4) includes connecting rod (44), the connecting rod (44) includes upper connecting rod (441) and lower connecting rod (442); One end of the upper connecting rod (441) is hinged with one end of the connecting plate (43), and the other end of the lower connecting rod (442) is hinged with the other end of the connecting plate (43).

4. The lock for a grain door as defined in claim 3 wherein, The locking structure (4) includes threaded rod (45); the threaded rod (45) includes upper threaded rod (451) and lower threaded rod (452); The other end of the upper connecting rod (441) is hinged with one end of the upper threaded rod (451), and the other end of the lower connecting rod (442) is hinged with one end of the lower threaded rod (452).

5. The lock for a grain door as defined in claim 4 wherein, The locking structure (4) includes lead screw (46); the lead screw (46) includes upper lead screw (461) and lower lead screw (462); The other end of the upper threaded rod (451) is hinged with one end of the upper lead screw (461), and the other end of the lower threaded rod (452) is hinged with one end of the lower lead screw (462).

6. The lock for a grain door as defined in claim 5 wherein, The locking structure (4) includes limit rod (47).

7. The lock for a grain door as defined in claim 5 wherein, The locking structure (4) further includes rotating hand wheel (48).

8. The lock for a grain door as defined in claim 1 wherein, The top opening of the lock body (3) is equipped with a fixed plate (31).

Images