Air duct with air exhaust angle adjusting function

Abstract

The utility model provides an air duct with an exhaust angle adjusting function, and belongs to the technical field of air ducts, the air duct comprises a base, a lifting adjusting mechanism is arranged in the middle of the top of the base, the lifting adjusting mechanism comprises a sliding rail, a sliding block, a lead screw and a connecting rod, the sliding block is slidably arranged in the sliding rail, the lead screw penetrates through the sliding rail, and the connecting rod is hinged to the top of the sliding block. According to the scheme, the connecting base, the hydraulic motor, the hydraulic pump and the hydraulic oil tank are arranged, the rotating angle of the hydraulic motor is adjusted through the hydraulic pump, the exhaust angle of the air duct body is adjusted, the valve is arranged in a communicating oil way of the hydraulic pump and the hydraulic motor, the locking effect on the hydraulic motor is achieved, and the groove is formed in the top of the connecting base; and the air duct main body is arranged in the groove in the top of the connecting seat, so that the air duct main body can rotate by an angle, and the use flexibility of the air duct main body is improved.

Description

Technical Field

[0001] This application relates to the field of ventilation duct technology, and in particular to a ventilation duct with adjustable exhaust angle. Background Technology

[0002] A ventilation duct is a device used to centrally transport airflow. It is mainly used to guide airflow in a certain direction and is mainly used in places such as mines and tunnels that require local ventilation. According to the air pressure, it can be divided into positive pressure ventilation ducts and negative pressure ventilation ducts.

[0003] In the prior art, there is a wind duct with adjustable angle that is easy to operate, thereby increasing the ease of use of the device. At the same time, the height of the device can be easily adjusted according to the usage environment, thereby increasing the flexibility of the device.

[0004] However, in actual use, the support rod set at the bottom of the air duct body restricts the downward tilt range of the air duct body. Its adjustment angle is small, and the flexibility during use is not good. In addition, after raising the height of the positioning plate, the overall center of gravity of the device is high, the stability of the base support is not good, and there is a risk of tipping over, which is not safe enough.

[0005] Therefore, this application provides a duct with adjustable exhaust angle to meet the requirements. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a duct with adjustable exhaust angle, so that the exhaust angle of the duct can be flexibly adjusted and the base has good support and stability.

[0007] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0008] A duct with adjustable exhaust angle includes a base, and a lifting adjustment mechanism is provided at the top center of the base. The lifting adjustment mechanism includes a slide rail, a slider, a lead screw and a connecting rod. The slider is slidably disposed inside the slide rail, the lead screw passes through the slide rail and the connecting rod is hinged to the top of the slider.

[0009] The top of the lifting adjustment mechanism is also provided with a connecting seat, the other end of the connecting rod is hinged to the bottom of the connecting seat, a hydraulic motor is fixedly connected to the upper inner side of the connecting seat, a hydraulic pump is fixedly connected to the outer side of the connecting seat, the output end of the hydraulic motor is connected to the main body of the air duct, and a hydraulic oil tank connected to the hydraulic pump is also installed on the side of the connecting seat.

[0010] A locking block is connected to one side of the slider, and a universal wheel is fixedly connected to the bottom of the locking block.

[0011] Preferably, the base has a groove at its end, an adjustment block is embedded in the groove at the end of the base, and a universal wheel is fixedly connected to the bottom of the adjustment block;

[0012] The adjusting block is connected to the base by a pin.

[0013] Preferably, the slide rail has a strip-shaped hole on its side, and the locking block is engaged in the strip-shaped hole on the side of the slide rail. The locking block includes a right-angled inner corner portion facing the base, and the bottom surface of the locking block is flush with the bottom surface of the base.

[0014] Preferably, the top of the base is also provided with a telescopic rod, which includes four telescopic rods, and the four telescopic rods are respectively provided at the four bottom corners of the connecting seat.

[0015] Preferably, the connecting seat has a "U" shaped structure, and the distance between the connecting seat and the connection part of the air duct body is less than the length of the air duct body.

[0016] Preferably, the lead screw is a bidirectional lead screw, and a handwheel is connected to the portion of the lead screw that passes through the slide rail.

[0017] Preferably, the base has an "I" shaped structure.

[0018] Compared with the prior art, this application has at least the following advantages:

[0019] In the above scheme, by setting up a connecting seat, a hydraulic motor, a hydraulic pump and a hydraulic oil tank, the rotation angle of the hydraulic motor is adjusted by the hydraulic pump to adjust the exhaust angle of the main body of the air duct. By setting a valve in the oil circuit connecting the hydraulic pump and the hydraulic motor, the hydraulic motor is locked. The top of the connecting seat is provided with a groove, and the main body of the air duct is set in the groove on the top of the connecting seat, so the main body of the air duct can rotate at a certain degree, thereby improving the flexibility of the main body of the air duct during use.

[0020] In the above solution, by setting up a slide rail, slider, lead screw, locking block and universal wheel, rotating the lead screw causes the slider to move the locking block away from the base, increasing the span between the two universal wheels, thereby improving the support of the base, reducing the risk of tipping over, and improving safety. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure in this application;

[0023] Figure 2This is a schematic diagram of the connector structure in this application;

[0024] Figure 3 This is a schematic diagram of the slide rail structure in this application;

[0025] Figure 4 This is a schematic diagram of the base structure in this application.

[0026] [Figure Labels]

[0027] Base 1, Adjusting block 101, Universal wheel 2 102, Telescopic rod 103, Slide rail 2, Slider 201, Lead screw 202, Connecting rod 203, Connecting seat 3, Hydraulic motor 301, Hydraulic pump 302, Air duct body 303, Hydraulic oil tank 304, Locking block 4, Universal wheel 1 401. Detailed Implementation

[0028] like Figure 1 , Figure 2 and Figure 3 The present application provides an embodiment of a duct with adjustable exhaust angle, which includes a base 1. A lifting adjustment mechanism is provided at the top center of the base 1. The lifting adjustment mechanism includes a slide rail 2, a slider 201, a lead screw 202 and a connecting rod 203. The slider 201 is slidably disposed inside the slide rail 2. The lead screw 202 passes through the slide rail 2 and the connecting rod 203 is hinged to the top of the slider 201.

[0029] The top of the lifting and adjusting mechanism is also provided with a connecting seat 3. The other end of the connecting rod 203 is hinged to the bottom of the connecting seat 3. A hydraulic motor 301 is fixedly connected to the upper inner side of the connecting seat 3. A hydraulic pump 302 is fixedly connected to the outer side of the connecting seat 3. The output end of the hydraulic motor 301 is connected to the air duct body 303. A hydraulic oil tank 304 connected to the hydraulic pump 302 is also installed on the side of the connecting seat 3.

[0030] A locking block 4 is connected to one side of the slider 201, and a universal wheel 401 is fixedly connected to the bottom of the locking block 4;

[0031] In use, the base 1 is placed on the ground, and the rotation angle of the hydraulic motor 301 is adjusted by the hydraulic pump 302. A valve is installed in the oil circuit connecting the hydraulic pump 302 and the hydraulic motor 301 to achieve the locking effect of the hydraulic motor 301, thereby fixing the exhaust angle of the air duct body 303. The top of the connecting seat 3 is provided with a groove, and the air duct body 303 is set in the groove on the top of the connecting seat 3. Therefore, the air duct body 303 can rotate 360 ​​degrees, thereby improving the flexibility of the air duct body 303 in use.

[0032] When it is necessary to increase the height of the main body 303 of the air duct, the screw 202 is rotated to drive the slider 201 to move towards the end of the slide rail 2, thereby changing the connecting rod 203 from an inclined state to a vertical state, increasing the height of the connecting seat 3, and raising the height of the main body 303 of the air duct.

[0033] At the same time, slider 201 drives block 4 to move away from base 1, increasing the span between the two casters 401, thereby improving the support of base 1, reducing the risk of tipping over, and improving safety.

[0034] In this embodiment, as Figures 2-4 As shown, a groove is provided at the end of the base 1, and an adjustment block 101 is embedded in the groove at the end of the base 1. A universal wheel 102 is fixedly connected to the bottom of the adjustment block 101.

[0035] The adjusting block 101 is connected to the base 1 by a pin;

[0036] The adjusting block 101 at the end of the base 1 can be pulled out to increase the distance between the two casters 102. By increasing the span, the torque is extended to improve the stability of the base 1 support and achieve a good anti-tilting effect.

[0037] The slide rail 2 has a strip-shaped hole on its side. The locking block 4 is engaged in the strip-shaped hole on the side of the slide rail 2. The locking block 4 includes a right-angled inner corner part facing the base 1. The bottom surface of the locking block 4 is flush with the bottom surface of the base 1.

[0038] The locking block 4 is limited and guided by the slide rail 2, so that it can only move relative to the length direction of the slide rail 2, thereby stably supporting the base 1.

[0039] The top of the base 1 is also provided with a telescopic rod 103, which includes four rods, and the four telescopic rods 103 are respectively located at the four bottom corners of the connecting seat 3;

[0040] The telescopic rod 103 is used to keep the connecting seat 3 in a horizontal state, so that the connecting seat 3 can move stably in the vertical direction and reduce the risk of the device overturning.

[0041] The connecting seat 3 has a "U" shaped structure, and the distance between the connecting seat 3 and the connecting part of the air duct body 303 is less than the length of the air duct body 303;

[0042] The air duct 303 can rotate to a vertical position inside the connecting seat 3. At the same time, the connection between the air duct body 303 and the hydraulic motor 301 is set in the middle position of the air duct body 303, so that the extension line of the central axis of the hydraulic motor 301 passes through the center of the air duct body 303, forming a proportional lever, which allows the air duct body 303 to easily rotate and lock.

[0043] The screw rod 202 is a bidirectional screw rod, and a handwheel is connected to the part of the screw rod 202 passing through the slide rail 2;

[0044] The bidirectional screw rod is provided with two sections of opposite threads, and by rotating the handwheel, the two sliders 201 can move towards each other or away from each other simultaneously.

[0045] The base 1 has an "I" - shaped structure;

[0046] On the premise of ensuring strength, the "I" - shaped structure of the base 1 has a lighter weight compared to other structures and has higher strength at the same time.

Claims

1. A ventilation duct with adjustable exhaust angle, characterized in that, It includes a base (1). At the middle position of the top of the base (1), a lifting and adjusting mechanism is provided. The lifting and adjusting mechanism includes: a slide rail (2), a slider (201), a screw rod (202) and a connecting rod (203). The slider (201) is slidably arranged inside the slide rail (2). The screw rod (202) penetrates through the slide rail (2). The connecting rod (203) is hinged to the top of the slider (201). At the top of the lifting and adjusting mechanism, a connecting seat (3) is further provided. The other end of the connecting rod (203) is hinged to the bottom of the connecting seat (3). At the upper position inside the connecting seat (3), a hydraulic motor (301) is fixedly connected. On the outside of the connecting seat (3), a hydraulic pump (302) is fixedly connected. The output end of the hydraulic motor (301) is connected to a wind筒主体(303). On the side of the connecting seat (3), a hydraulic oil tank (304) connected to the hydraulic pump (302) is also installed. On one side of the slider (201), a clamping block (4) is connected. At the bottom of the clamping block (4), a universal wheel one (401) is fixedly connected.

2. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: At the end of the base (1), a groove is formed. An adjusting block (101) is embedded in the groove at the end of the base (1). At the bottom of the adjusting block (101), a universal wheel two (102) is fixedly connected; The adjusting block (101) and the base (1) are connected by a bolt.

3. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: A strip-shaped hole is formed on the side of the slide rail (2). The clamping block (4) is clamped in the strip-shaped hole on the side of the slide rail (2). The clamping block (4) includes a right-angled inner corner part facing the base (1). The bottom surface of the clamping block (4) is flush with the bottom surface of the base (1).

4. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: On the top of the base (1), a telescopic rod (103) is further provided. The telescopic rod (103) includes four branches. The four branches of the telescopic rod (103) are respectively arranged at the four corners of the bottom of the connecting seat (3).

5. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: The connecting seat (3) is of a "U" - shaped structure. The distance between the connecting part of the connecting seat (3) and the wind筒主体(303) is less than the length of the wind筒主体(303).

6. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: The screw rod (202) is a bidirectional screw rod. The part of the screw rod (202) penetrating through the slide rail (2) is connected with a hand wheel.

7. The ventilation duct with adjustable exhaust angle according to claim 1, characterized in that: The base (1) is of an "I" - shaped structure.

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