Ventilation structure for factory building

Abstract

The utility model belongs to the technical field of plant ventilation, and provides a plant ventilation structure which comprises a ventilation pipe and fan blades, and the two ends of the ventilation pipe are fixed in an air flue on a plant wall through positioning mechanisms; the fan blades are rotationally arranged in the middle of a pipe cavity of the ventilation pipe. The positioning mechanism comprises a threaded sleeve, a pushing column and positioning rods, the threaded sleeve is transversely arranged in a pipe cavity of the ventilation pipe, the pushing column is sleeved with the threaded sleeve in a threaded mode, the multiple positioning rods are arranged in the circumferential direction of the threaded sleeve, the limiting ends of the positioning rods penetrate through the pipe wall of the ventilation pipe, and the stress ends of the positioning rods are inserted into a sleeve cavity of the threaded sleeve; and the pushing column is rotated to move in the threaded sleeve along the axial direction. The device is flexible to use, simple and convenient to operate, capable of achieving rapid installation of the exhaust fan, very suitable for workplaces such as workshops with large ventilation demand quantity, capable of effectively improving the installation efficiency of the exhaust fan and reducing the workload of installation workers, and excellent in use effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of factory building ventilation, and in particular relates to a ventilation structure for factory buildings. Background Art

[0002] Factories are usually used to store goods or process products. In processing plants used for cutting steel or welding, there will be a large amount of smoke and fine particles. If these harmful substances are not cleaned up in time, it will have adverse effects on the health of the workers. Therefore, exhaust fans are installed on the walls of the factory to keep the interior of the factory in a good ventilation state to reduce harm to the human body.

[0003] At present, the traditional installation method of exhaust fans is to fix them to the walls of the factory through bolts, which has low flexibility and a complicated installation process. Due to the large overall structure of the factory and the large number of exhaust fans arranged, if the traditional installation method is continued, the installation efficiency will inevitably be low and the overall workload of the installers will be large.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the problems of low installation efficiency of the exhaust structure for factory buildings in the above-mentioned prior art and large overall workload of the installation workers, and to provide a ventilation structure for factory buildings.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A ventilation structure for a factory building, comprising: a ventilation pipe and fan blades, both ends of the ventilation pipe are fixed in an air duct on the wall of the factory building by a positioning mechanism; the fan blades are rotatably arranged in the middle of the tube cavity of the ventilation pipe; the positioning mechanism comprises: a threaded sleeve, a push column and a positioning rod, the threaded sleeve is horizontally placed in the tube cavity of the ventilation pipe, the push column is threadedly sleeved inside the threaded sleeve, a plurality of positioning rods are arranged along the circumferential direction of the threaded sleeve, the limiting end of the positioning rod passes through the tube wall of the ventilation pipe, and the force-bearing end of the positioning rod is inserted into the tube cavity of the threaded sleeve; the push column is rotated to cause it to displace axially in the threaded sleeve, and the displacement of the push column causes its front end to squeeze the force-bearing end of the positioning rod, so that the limiting end of the positioning rod is inserted into the inner wall of the air duct.

[0008] In the factory building ventilation structure as described above, preferably, the outer diameter of the ventilation pipe matches the diameter of the air duct on the factory building wall.

[0009] Preferably, a motor is provided at the rear of the middle part of the fan blade, and the head of the motor is transmission-connected to the fan blade via a rotating shaft;

[0010] The tail of the motor is docked with the end of the adjacent threaded sleeve.

[0011] Preferably, the front end of the push rod and the force-receiving end of the positioning rod are both conical.

[0012] Preferably, the rear end of the push rod faces the outside of the ventilation pipe and is provided with a screwing cap.

[0013] Preferably, the length of the positioning rod matches the inner pipe radius of the ventilation pipe.

[0014] Preferably, a baffle is provided outside the limiting end of the positioning rod;

[0015] The baffle is located inside the pipe cavity of the ventilation pipe.

[0016] Preferably, a threaded section and a smooth section are provided on the outer part of the column body of the push rod;

[0017] The threaded section is connected to the screwing cap, and the smooth section is connected to the conical head at the front end of the push rod.

[0018] Beneficial effects: The utility model is flexible in use and simple in operation, can realize the rapid installation of the exhaust fan, is very suitable for working sites such as factories with large ventilation requirements, can effectively improve the installation efficiency of the exhaust fan, reduce the workload of installers, and has excellent use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the utility model. The illustrative embodiments and descriptions of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model. Among them:

[0020] Figure 1 is the front view schematic diagram of the utility model;

[0021] Figure 2 is the overall structure schematic diagram of the utility model;

[0022] Figure 3 is Figure 2 the rear view schematic diagram of

[0023] Figure 4 is Figure 2 the internal structure schematic diagram of the ventilation pipe of

[0024] Figure 5 is Figure 4 the enlarged schematic diagram at position A in

[0025] In the figure: 1, ventilation pipe; 2, fan blade; 3, threaded sleeve; 4, push rod; 401, threaded section; 402, smooth section; 5, positioning rod; 6, motor; 7, screw cap; 8, baffle plate. Detailed implementation manner

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0027] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0028] The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] Embodiment. This embodiment aims to provide a ventilation structure for a factory building, and its main function is reflected in that it can effectively improve the installation efficiency of the exhaust fan and reduce the workload of the installation workers.

[0030] Refer to Figure 1 、 Figure 2 And Figure 3 , including: a ventilation pipe 1 and a fan blade 2. Both ends of the ventilation pipe 1 are fixed in the air duct on the factory building wall through a positioning mechanism, and the outer diameter of the ventilation pipe 1 fits the diameter of the air duct on the factory building wall. The fan blade 2 is rotatably arranged in the middle of the lumen of the ventilation pipe 1. Specifically, the positioning mechanism includes: a threaded sleeve 3, a push rod 4 and a positioning rod 5. Threaded sleeves 3 are horizontally arranged at the front and rear ends in the lumen of the ventilation pipe 1. The push rod 4 is threadedly sleeved inside the threaded sleeve 3, and the front end of the push rod 4 faces the inside of the lumen of the ventilation pipe 1, and the rear end of the push rod 4 faces the outside of the lumen of the ventilation pipe 1. At the same time, a screw cap 7 is fixed to the rear end of the push rod 4, and the screw cap 7 is convenient for controlling the rotation of the push rod 4 so that the push rod 4 axially displaces in the threaded sleeve 3.

[0031] Reference Figure 2 , Figure 4 and Figure 5 Four positioning rods 5 are vertically arranged on the outside of the threaded sleeve 3 along the circumferential direction. The limiting end of the positioning rod 5 penetrates the pipe wall of the ventilation pipe 1. The force-bearing end of the positioning rod 5 is inserted into the barrel cavity of the threaded sleeve 3. The column body of the push column 4 is provided with a threaded section 401 and a smooth section 402. The threaded section 401 is connected with the screw cap 7. The smooth section 402 is connected with the conical head at the front end of the push column 4. The push column 4 is rotated by screwing the cap 7 to make it move axially toward the inside of the ventilation pipe 1. During this period, since the front end of the push column 4 and the force-bearing end of the positioning rod 5 are both conical When the push column 4 is displaced, its front end will gradually squeeze the force-bearing end of the positioning rod 5. After the positioning rod 5 is subjected to force, it will move radially until the force-bearing end of the positioning rod 5 contacts the smooth section 402 outside the column body of the push column 4, so that the limiting end of the positioning rod 5 protrudes outward from the outer tube wall of the ventilation pipe 1. Then, the protruding part of the positioning rod 5 will be inserted into the inner wall of the air duct of the factory wall. It should be noted that holes for inserting the limiting ends of the positioning rod 5 must be pre-drilled on the inner wall of the air duct, and the number of holes corresponds to the number of positioning rods 5.

[0032] In this embodiment, a baffle 8 is provided on the outside of the limiting end of the positioning rod 5, and the baffle 8 is located in the tube cavity of the ventilation pipe 1. The baffle 8 prevents the positioning rod 5 from being separated from the positioning mechanism during operation, and at the same time can unify the length of the limiting end of the positioning rod 5 extending to the outside of the ventilation pipe 1. Based on this, when the limiting ends of the four positioning rods 5 on the same side are inserted into the inner wall of the air duct, the threaded sleeve 3 and the push column 4 are in a coaxial state with the ventilation pipe 1.

[0033] Reference Figure 3 A motor 6 is provided at the rear of the middle part of the fan blade 2. The head of the motor 6 is transmission-connected to the fan blade 2 through a rotating shaft, and the tail of the motor 6 is docked with the end of the rear threaded sleeve 3. Specifically, docking plates are fixed at the inner end of the rear threaded sleeve 3 and the tail of the motor 6. The two docking plates are fixed by bolts, so that the motor 6 and the rear threaded sleeve 3 can be connected as a whole.

[0034] In this embodiment, the length of the positioning rod 5 matches the inner tube radius of the ventilation duct 1, that is, the two positioning rods 5 in the same straight line match the inner tube diameter of the ventilation duct 1. When the force-bearing ends of the four positioning rods 5 on the same side are in contact at the same time, the fan blades 2 and the motor 6 can be pulled out of the ventilation duct 1 to facilitate the staff to clean the fan blades 2.

[0035] Before actual installation, by rotating the push rod 4 to gradually move it towards the inner end of the threaded sleeve 3, the distance of the positioning rod 5 moving radially is controlled, so that the limiting end of the positioning column does not protrude outside the pipe wall of the ventilation pipe 1. Based on this condition, the ventilation pipe 1 is placed into the air duct on the factory building wall, and the limiting end of the positioning rod 5 is made to correspond to the preset hole on the inner wall of the air duct. Subsequently, the installer rotates the push rod 4 again to gradually move it towards the inner end of the threaded sleeve 3. During this process, the limiting end of the positioning rod 5 will gradually extend outwards until the stressed end of the positioning rod 5 contacts the smooth section 402 outside the column body of the push rod 4. At this time, the limiting end of the positioning rod 5 is inserted into the hole on the inner wall of the air duct, the threaded sleeve 3 and the ventilation pipe 1 are in a coaxial state, and the baffle 8 on the positioning rod 5 just contacts the inner pipe wall of the ventilation pipe 1, and the entire ventilation structure is completely fixed in the air duct.

[0036] The ventilation structure provided by this embodiment is flexible in use and simple in operation, can realize the rapid installation of the exhaust fan, is very suitable for working sites such as factory buildings with a large ventilation demand, and has an extremely fast installation speed, which can greatly reduce the workload of installers and has an excellent use effect.

[0037] It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A ventilation structure for a factory building, characterized in that: include: The ventilation pipe is fixed in the air duct on the wall of the factory building at both ends through a positioning mechanism; A fan blade is rotatably arranged in the middle of the tube cavity of the ventilation tube; The positioning mechanism comprises: a threaded sleeve, a push column and a positioning rod, the threaded sleeve is horizontally placed in the tube cavity of the ventilation pipe, the push column is threadedly sleeved inside the threaded sleeve, a plurality of positioning rods are provided along the circumferential direction of the threaded sleeve, the limiting end of the positioning rod penetrates the tube wall of the ventilation pipe, and the force-bearing end of the positioning rod is inserted into the tube cavity of the threaded sleeve; The push column is rotated to cause it to displace axially in the threaded sleeve, and the displacement of the push column causes its front end to squeeze the force-bearing end of the positioning rod, so that the limiting end of the positioning rod is inserted into the inner wall of the air duct.

2. The ventilation structure for a factory building according to claim 1, characterized in that: The outer diameter of the ventilation pipe matches the diameter of the air duct on the wall of the factory building.

3. The ventilation structure for a factory building according to claim 1, characterized in that: A motor is provided at the rear of the middle part of the fan blade, and the head of the motor is transmission-connected to the fan blade through a rotating shaft; The tail of the motor is butted against the end of the adjacent threaded sleeve.

4. The ventilation structure for a factory building according to claim 1, characterized in that: The front end of the push column and the force-bearing end of the positioning rod are both conical.

5. The ventilation structure for a factory building according to claim 4, characterized in that: The rear end of the push column faces the outside of the ventilation pipe and is provided with a screw cap.

6. The ventilation structure for a factory building according to claim 1, characterized in that: The length of the positioning rod matches the inner tube radius of the ventilation tube.

7. The ventilation structure for a factory building according to claim 1, characterized in that: A baffle is provided outside the limiting end of the positioning rod; The baffle is located in the tube cavity of the ventilation tube.

8. The ventilation structure for a factory building according to claim 5, characterized in that: The outer part of the column of the push column is provided with a threaded section and a smooth section; The threaded section is connected with the screw cap, and the smooth section is connected with the conical head at the front end of the push column.

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