A laboratory exhaust device that is easy to install

Abstract

The utility model provides a laboratory exhaust device convenient to installation relates to exhaust device technical field to solve the problem that the existing exhaust device can not adjust the height of exhaust pipe according to the demand when using, and exhaust mechanism includes: main part, is provided with air duct on main part air suction mouth, connecting piece sets up in the inside bottom end of air duct, the round hole inside of connecting piece is installed with the plug -in of sliding, fixed mounting is installed in the bottom of connecting piece, fixed rod fixed mounting is installed in the bottom of fixed part, clamping part sets up in the bottom of fixed part, the bottom of sliding part is connected with the cylindrical convex on fixed rod through spring, through pressing sliding part, makes the spring between sliding part compression and fixed rod, and clamping part sets up as the spring material, thereby separates from and telescopic pipe contact, makes telescopic pipe can retract to the length of appropriate, through spring reset drive sliding part and clamping part contact, and promote clamping part and telescopic pipe contact, thereby to telescopic pipe clamping, prevents telescopic pipe from falling.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust device technology, and more specifically, it relates to an easy-to-install laboratory exhaust device. Background Technology

[0002] Laboratory exhaust systems are air handling devices specifically designed for laboratory environments. Their core function is to effectively remove pollutants such as harmful gases, volatile substances, dust particles, and odors generated during experiments through directional airflow control, while maintaining air pressure balance and air quality safety within the laboratory. Current technology reveals that existing exhaust systems are problematic because laboratories typically have multiple workbenches, each requiring its own exhaust system. These are usually connected by multiple exhaust ducts, which require frequent cleaning to prevent dust blockage. The threaded installation of these ducts makes installation and disassembly cumbersome and inefficient. Furthermore, existing systems cannot quickly adjust the height of the exhaust ducts to position them closer to the source of gas emissions. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an easy-to-install laboratory exhaust device. This solves the problem that existing exhaust devices require cleaning of the exhaust pipe after prolonged use to prevent dust blockage. Exhaust pipes are generally threaded, making installation and disassembly cumbersome and inefficient. Furthermore, existing exhaust devices cannot quickly adjust the height of the exhaust pipe according to needs.

[0004] This utility model provides an easy-to-install laboratory exhaust device, achieved through the following specific technical means:

[0005] An easy-to-install laboratory exhaust device includes an exhaust mechanism, a connecting mechanism, a telescopic mechanism, and a fixing mechanism;

[0006] The exhaust mechanism is provided with a connecting mechanism at its bottom; the connecting mechanism is provided with a telescopic mechanism at its bottom; the fixing mechanism is located on the connecting mechanism; the fixing mechanism is connected to the telescopic mechanism.

[0007] The exhaust mechanism includes: a main body, which is the exhaust device body; an air intake is provided at the bottom of the main body; an air duct is provided on the air intake of the main body; a contact block is provided at the bottom of the air duct; and an inclined surface is provided on the contact block.

[0008] The connecting mechanism includes: a connector, which is disposed at the bottom of the air duct; a circular hole is provided on the connector; a plug is slidably installed inside the circular hole on the connector; the side of the plug is set with an inclined structure; the plug is connected to the inner wall of the connector by a spring; the two sides of the plug are in contact with the inclined surface of the contact block.

[0009] Furthermore, an impeller is provided inside the main body; the impeller of the main body is driven to rotate by a motor.

[0010] Furthermore, the telescopic mechanism includes: a telescopic tube and a mounting cover;

[0011] The telescopic tube is slidably installed inside the connector; the mounting cover is configured as a frustum-shaped structure; the mounting cover is located at the bottom of the telescopic tube.

[0012] Furthermore, the fixing mechanism includes: a fixing member and a fixing rod;

[0013] The fastener is configured as a circular ring structure; the fastener is fixedly installed at the bottom of the connector; the fixing rod is a cylindrical structure with a raised bottom; the fixing rod is fixedly installed at the bottom of the fastener.

[0014] Furthermore, the fixing mechanism also includes: a locking component and a sliding component;

[0015] The locking component is made of an elastic material; the locking component is a wedge-shaped structure; the locking component is located at the bottom of the fixing component; the inner side of the bottom of the locking component is in contact with the telescopic tube; the sliding component is a circular structure; the sliding component is slidably mounted on the fixing rod; the inner side of the bottom of the sliding component is in contact with the outer side of the locking component; the bottom of the sliding component is connected to the cylindrical protrusion on the fixing rod by a spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this device, a contact block and a plug are provided. The contact block is fixedly installed at the bottom of the air duct, while the plug is slidably installed inside the round hole on the connector. During use, when installing, the connector is inserted into the round hole on the air duct. The inclined edge on the plug contacts the bottom of the air duct and compresses the spring, allowing the connector to be smoothly inserted into the air duct. The spring resets the plug, limiting the connector. When disassembling, the connector is manually rotated, causing the plug to contact the contact block. This causes the contact block to compress the spring and retract into the connector, allowing for quick disassembly.

[0018] 2. In this device, a telescopic tube and a fixing component are provided. The telescopic tube is slidably installed inside the connector, while the fixing component is fixedly installed at the bottom of the connector. Thus, during use, by pressing the sliding component, the sliding component compresses the spring between the sliding component and the fixing rod. The locking component is made of elastic material, thereby disengaging from the telescopic tube, allowing the telescopic tube to extend to a suitable length. The spring returns to its original position, causing the sliding component to contact the locking component, and pushing the locking component to contact the telescopic tube, thereby clamping the telescopic tube and preventing it from falling. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 This is a cross-sectional three-dimensional structural diagram of the air duct of this utility model.

[0021] Figure 3 This is an exploded three-dimensional structural diagram of the fixing mechanism and the connecting mechanism of this utility model.

[0022] Figure 4 This utility model is composed of Figure 2 A schematic diagram of the enlarged portion of section A.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Exhaust mechanism; 101. Main body; 102. Air duct; 103. Contact block; 2. Connection mechanism; 201. Connector; 202. Insert; 3. Telescopic mechanism; 301. Telescopic tube; 302. Mounting cover; 4. Fixing mechanism; 401. Fixing component; 402. Fixing rod; 403. Locking component; 404. Sliding component. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 4 As shown:

[0028] This utility model provides a laboratory exhaust device that is easy to install, including an exhaust mechanism 1, a connecting mechanism 2, a telescopic mechanism 3, and a fixing mechanism 4;

[0029] The exhaust mechanism 1 is equipped with a connecting mechanism 2 at its bottom; the connecting mechanism 2 is equipped with a telescopic mechanism 3 at its bottom; a fixing mechanism 4 is installed on the connecting mechanism 2; the fixing mechanism 4 is connected to the telescopic mechanism 3;

[0030] The exhaust mechanism 1 includes: a main body 101, which is the body of the exhaust device; an air intake is provided at the bottom of the main body 101; the main body 101 is used to apply force to the air when the impeller is driven to rotate by the motor, so that the air enters from the air intake and is accelerated and discharged along the edge of the impeller, thereby forming a negative pressure zone; this process not only generates the required airflow, but also ensures the pressure balance inside the laboratory; an air duct 102 is provided on the air intake of the main body 101; the air duct 102 is used to transmit airflow; a contact block 103 is provided at the bottom of the air duct 102; the contact block 103 is provided with an inclined surface; the contact block 103 is used to make the inclined surface of the contact block 202 contact with the plug 202 so that the plug 202 compresses the spring, thereby facilitating the disassembly of the connector 201;

[0031] The connecting mechanism 2 includes: a connector 201, which is disposed at the bottom of the air duct 102; a circular hole is provided on the connector 201; an insert 202 is slidably installed inside the circular hole on the connector 201; the side of the insert 202 is set with an inclined structure; the insert 202 is connected to the inner wall of the connector 201 by a spring; both sides of the insert 202 are in contact with the inclined surface of the contact block 103; the connector 201 is inserted into the air duct 102, and the inclined side of the insert 202 contacts the air duct 102 and compresses the spring, thereby allowing the connector 201 to be quickly inserted into the air duct 102, and the spring resets the insert 202, ensuring that the connector 201 is quickly installed, and the annular protrusion on the top of the connector 201 can limit the length of the connector 201 inserted into the air duct 102.

[0032] Among them, such as Figure 2 As shown, an impeller is installed inside the main body 101; the impeller of the main body 101 is driven to rotate by a motor.

[0033] Among them, such as Figure 1 As shown, the telescopic mechanism 3 includes: a telescopic tube 301 and a mounting cover 302; the telescopic tube 301 is slidably installed inside the connector 201; the telescopic tube 301 is used to adapt to different exhaust height requirements by telescopically extending and retracting inside the connector 201; the mounting cover 302 is configured as a frustum-shaped structure; the mounting cover 302 is located at the bottom of the telescopic tube 301; the mounting cover 302 is used to expand the range of exhaust gas absorption.

[0034] Among them, such as Figure 3As shown, the fixing mechanism 4 includes: a fixing member 401, a fixing rod 402, a locking member 403, and a sliding member 404; the fixing member 401 is a ring-shaped structure; the fixing member 401 is fixedly installed at the bottom of the connector 201; the fixing rod 402 is a cylindrical structure with a raised bottom; the fixing rod 402 is fixedly installed at the bottom of the fixing member 401; the fixing rod 402 is used to slide the sliding member 404; the locking member 403 is made of an elastic material; the locking member 403 is a wedge-shaped structure; the locking member 403 is located at the bottom of the fixing member 401; the inner side of the bottom of the locking member 403 contacts the telescopic tube 301; the locking member 403 is used to contact the telescopic tube through contact with the sliding member 404. The outer side of the telescopic tube 301 contacts and limits its movement; the sliding member 404 is a circular structure; the sliding member 404 is slidably mounted on the fixed rod 402; the inner bottom of the sliding member 404 contacts the outer side of the locking member 403; the bottom of the sliding member 404 is connected to the cylindrical protrusion on the fixed rod 402 by a spring; the sliding member 404 is used to press the sliding member 404 to disengage from the locking member 403 and compress the spring, so that the telescopic tube 301 can extend and retract freely, and the spring returns the inner wall to contact the locking member 403, causing the locking member 403 to deform, thereby clamping the telescopic tube 301 and fixing its position.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In this utility model, during installation, the connector 201 is inserted into the round hole in the air duct 102. The inclined edge of the connector 202 contacts the bottom of the air duct 102 and compresses the spring, allowing the connector 201 to be smoothly inserted into the air duct 102. The spring's return action limits the connector 201, completing the connection between the connector 201 and the air duct 102. Pressing the sliding member 404 compresses the spring between the sliding member 404 and the fixed rod 402. The locking member 403, through its design... The material is made of elasticity, thus detaching it from the telescopic tube 301, allowing the telescopic tube 301 to extend to a suitable length. The spring reset causes the sliding member 404 to contact the locking member 403, and pushes the locking member 403 to contact the telescopic tube 301, thereby clamping the telescopic tube 301 and preventing it from falling. When the impeller is driven to rotate by the motor, the blades apply force to the air, causing the air to enter from the air inlet and be accelerated and discharged along the edge of the impeller, thus forming a negative pressure zone; generating the required airflow and ensuring the pressure balance inside the laboratory.

Claims

1. A laboratory exhaust system that is easy to install, characterized in that: It includes an exhaust mechanism (1), a connecting mechanism (2), a telescopic mechanism (3), and a fixing mechanism (4); The exhaust mechanism (1) is provided with a connecting mechanism (2) at its bottom; the connecting mechanism (2) is provided with a telescopic mechanism (3) at its bottom; the fixing mechanism (4) is provided on the connecting mechanism (2); the fixing mechanism (4) is connected to the telescopic mechanism (3); The exhaust mechanism (1) includes: a main body (101), which is the body of the exhaust device; an air intake is provided at the bottom of the main body (101); an air duct (102) is provided on the air intake of the main body (101); a contact block (103) is provided at the bottom inside the air duct (102); and an inclined surface is provided on the contact block (103). The connecting mechanism (2) includes: a connector (201), which is disposed at the bottom of the air duct (102); the connector (201) has a round hole; a plug (202) is slidably installed inside the round hole of the connector (201); the side of the plug (202) is set as an inclined structure; the plug (202) is connected to the inner wall of the connector (201) by a spring; the two sides of the plug (202) are in contact with the inclined surface of the contact block (103).

2. The laboratory exhaust device that is easy to install according to claim 1, characterized in that: An impeller is provided inside the main body (101); the impeller of the main body (101) is driven to rotate by a motor.

3. The laboratory exhaust device that is easy to install according to claim 1, characterized in that: The telescopic mechanism (3) includes: a telescopic tube (301) and a mounting cover (302); The telescopic tube (301) is slidably installed inside the connector (201); the mounting cover (302) is configured as a frustum-shaped structure; the mounting cover (302) is located at the bottom of the telescopic tube (301).

4. The laboratory exhaust device that is easy to install according to claim 3, characterized in that: The fixing mechanism (4) includes: a fixing member (401) and a fixing rod (402); The fixing member (401) is configured as a circular ring structure; the fixing member (401) is fixedly installed at the bottom of the connector (201); the fixing rod (402) is a cylindrical structure with a raised bottom; the fixing rod (402) is fixedly installed at the bottom of the fixing member (401).

5. A laboratory exhaust system that is easy to install according to claim 4, characterized in that: The fixing mechanism (4) further includes: a locking component (403) and a sliding component (404). The locking component (403) is made of an elastic material; the locking component (403) is a wedge-shaped structure; the locking component (403) is located at the bottom of the fixing component (401); the inner side of the bottom of the locking component (403) is in contact with the telescopic tube (301); the sliding component (404) is a circular structure; the sliding component (404) is slidably mounted on the fixing rod (402); the inner side of the bottom of the sliding component (404) is in contact with the outer side of the locking component (403); the bottom of the sliding component (404) is connected to the cylindrical protrusion on the fixing rod (402) by a spring.

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