Ventilation hood for building drainage
By setting a slot on the drain pipe and setting an elastic connecting rod and a trapezoidal locking tongue between the ventilation cover and the connecting pipe, the limit connection between the drain pipe and the connecting pipe is achieved, which solves the problem of troublesome replacement of the existing breathable cover, ensuring a stable connection and convenient replacement of the ventilation cover.
Patent Information
- Application Number
- CN202421455676.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing breathable cover is fixed to the upper end of the drain pipe by adhesive or tape wrapping, which makes it inconvenient to separate from the drain pipe when the breathable cover is damaged, and it is more troublesome to replace the ventilation cover.
A ventilation cover for building drainage is designed. By setting a slot on the drainage pipe, and an elastic connecting rod and a trapezoidal locking tongue are arranged between the ventilation pipe and the connecting pipe, the limit connection between the drainage pipe and the connecting pipe is realized. At the same time, the stable connection between the connecting pipe and the drainage pipe is ensured through the rotating pipe and the locking ring.
Through the design of the trapezoidal locking tongue and elastic connecting rod, the lower end connection pipe of the ventilation cover can be easily removed from the drain pipe, which facilitates the replacement of the ventilation cover. At the same time, through the coordination of the rotating pipe and the anti-retardation ring, the stable connection between the connecting pipe and the drain pipe is ensured, avoiding the risk of the ventilation cover falling off during use.
Smart Images
Figure CN222782146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ventilation hoods, in particular to a ventilation hood used for building drainage. Background Art
[0002] The drain pipe vent cap is a kind of device that uses special design and material to allow internal air circulation, avoid the air in the pipe being blocked and blocking the pipe, and ensure the smooth flow of the drainage pipe. The drain pipe vent cap is a simple, practical, easy to install and maintain device, which is widely used in drainage systems and is one of the important equipment to ensure outdoor drainage specifications.
[0003] At present, the ventilation cover is mostly fixed on the upper end of the drain pipe by adhesive or tape winding. This method is not convenient for separating the ventilation cover from the drain pipe when it is damaged, which makes it troublesome to replace the ventilation cap. Therefore, the market urgently needs to develop a ventilation cover for building drainage to help people solve the existing problem. Utility Model Content
[0004] The utility model aims to provide a ventilation hood for building drainage, so as to solve the problem proposed in the above background technology that the current ventilation hoods are mostly fixed to the upper end of the drainage pipe by means of adhesive glue or tape winding, and this method is not convenient for separating the ventilation hood from the drainage pipe when it is damaged, resulting in troublesome replacement of the ventilation cap.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vent hood for building drainage, comprising a drainage pipe, a card groove is provided in the middle of the end surfaces on both sides of the drainage pipe, the upper end of the drainage pipe is connected to the vent hood, the lower end of the vent hood is connected to a connecting pipe, a connecting groove is provided inside the connecting pipe, a locking tongue groove is provided at the middle lower end of the end surfaces on both sides of the connecting pipe, an elastic connecting rod is fixedly connected inside the locking tongue groove, a trapezoidal locking tongue is fixedly connected to the lower end of one side of the elastic connecting rod, a fixing ring is fixedly connected to the middle upper end of the connecting groove, a supporting ring is connected to the lower end of the fixing ring, the outer end surface of the connecting pipe is rotatably connected to a rotating pipe, and a stop ring is fixedly connected to the lower end of the rotating pipe.
[0006] Preferably, a plurality of support rods are fixedly connected between the inner end surface of the ventilation hood and the upper end of the connecting pipe, and a blocking net is fixedly connected between the upper end of the outer end surface of the connecting pipe and the lower end of the ventilation hood.
[0007] Preferably, the lower end surface of the fixing ring and the upper end surface of the supporting ring are fixedly connected via a plurality of springs.
[0008] Preferably, the drain pipe is inserted into the connecting groove inside the connecting pipe to lift up the supporting ring to shrink the spring.
[0009] Preferably, the trapezoidal locking tongue on the elastic connecting rod inside the locking tongue groove of the connecting pipe is inserted into the clamping groove on the drainage pipe.
[0010] Preferably, an external threaded portion is provided at the middle upper end of the outer end surface of the connecting tube, and an internal threaded portion is provided at the upper end of the inner end surface of the rotating tube.
[0011] Preferably, the external threaded portion on the connecting tube is threadedly connected to the internal threaded portion on the rotating tube, and a limiting ring is fixedly connected to the lower end of the outer end surface of the connecting tube.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. In the utility model, a connecting pipe is provided, and the lower end of the vent hood is connected with the connecting pipe. A connecting groove is provided inside the connecting pipe. The middle lower ends of the end faces on both sides of the connecting pipe are provided with locking tongue grooves. An elastic connecting rod is fixedly connected inside the locking tongue groove. A trapezoidal locking tongue is fixedly connected to the lower end of one side of the elastic connecting rod. The trapezoidal locking tongue on the elastic connecting rod inside the locking tongue groove of the connecting pipe is inserted into the card groove on the drain pipe. The trapezoidal locking tongue keeps the drain pipe and the connecting pipe limited by the trapezoidal locking tongue to prevent the connecting pipe from falling off the drain pipe. At the same time, the trapezoidal locking tongue is pulled outward to remove the connecting pipe from the drain pipe, which is convenient for replacing the vent hood.
[0014] 2. In the utility model, through the setting of the support ring, the lower end surface of the fixed ring and the upper end surface of the support ring are fixedly connected by multiple springs. The fixing ring is pushed by the spring, and the fixing ring pushes the connecting pipe to maintain an upward lifting state on the drain pipe, so that the trapezoidal locking tongue clamps the upper end of the inner groove to prevent the connecting pipe from shaking on the drain pipe.
[0015] 3. In the utility model, through the setting of the stop ring, the lower end of the inner part of the rotating tube is fixedly connected with the stop ring, the external threaded part on the connecting tube is threadedly connected with the internal threaded part on the rotating tube, and the lower end of the outer end face of the connecting tube is fixedly connected with the limiting ring. When the connecting tube is limitedly connected to the drain pipe, the rotating tube is rotated to make the rotating tube descend on the connecting tube, driving the stop ring to move to the lower end of one side of the lock tongue groove, blocking the outward movement of the elastic connecting rod, so that the connection between the connecting tube and the drain pipe is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view of a vent hood for building drainage according to the utility model;
[0017] Figure 2 It is the main sectional view of the utility model;
[0018] Figure 3 It is a top cross-sectional view of the card slot of the utility model;
[0019] Figure 4 It is an enlarged view of the detail A of the present utility model.
[0020] In the figure: 1. drainage pipe; 101. slot; 2. ventilation cover; 201. support rod; 202. barrier net; 3. connecting pipe; 301. connecting groove; 302. locking tongue groove; 303. elastic connecting rod; 304. trapezoidal locking tongue; 305. external threaded portion; 306. limiting ring; 4. fixing ring; 401. support ring; 402. spring; 5. rotating tube; 501. internal threaded portion; 502. stop ring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] See also Figure 1-4 The utility model provides an embodiment: a ventilation cover for building drainage, comprising a drainage pipe 1, a card groove 101 is arranged in the middle of the end surfaces on both sides of the drainage pipe 1, a ventilation cover 2 is connected to the upper end of the drainage pipe 1, and a connecting pipe 3 is connected to the lower end of the ventilation cover 2, and a connecting groove 301 is arranged inside the connecting pipe 3, and a locking tongue groove 302 is arranged at the middle lower end of the end surfaces on both sides of the connecting pipe 3, and an elastic connecting rod 303 is fixedly connected inside the locking tongue groove 302, and a trapezoidal locking tongue 304 is fixedly connected to the lower end of one side of the elastic connecting rod 303, a fixing ring 4 is fixedly connected to the middle upper end of the connecting groove 301, and a supporting ring 401 is connected to the lower end of the fixing ring 4, and a rotating pipe 5 is rotatably connected to the outer end surface of the connecting pipe 3, and a stop ring 502 is fixedly connected to the lower end of the rotating pipe 5.
[0023] Furthermore, a plurality of support rods 201 are fixedly connected between the inner end surface of the ventilation hood 2 and the upper end of the connecting pipe 3, and a blocking net 202 is fixedly connected between the upper end of the outer end surface of the connecting pipe 3 and the lower end of the ventilation hood 2. The blocking net 202 blocks debris to prevent foreign matter from entering the drainage pipe 1 and causing blockage.
[0024] Furthermore, the lower end surface of the fixing ring 401 is fixedly connected to the upper end surface of the supporting ring 401 via a plurality of springs 402 .
[0025] Furthermore, the drain pipe 1 is inserted into the connecting groove 301 inside the connecting pipe 3 to lift up the supporting ring 401 and cause the spring 402 to contract.
[0026] Furthermore, the trapezoidal locking tongue 304 on the elastic connecting rod 303 inside the locking tongue groove 302 of the connecting pipe 3 is inserted into the clamping groove 101 on the drain pipe 1, and the trapezoidal locking tongue 304 is used to limit the distance between the drain pipe 1 and the connecting pipe 3 to prevent the connecting pipe 3 from falling off the drain pipe 1. At the same time, the trapezoidal locking tongue 304 is pulled outward to remove the connecting pipe 3 from the drain pipe 1, so as to facilitate the replacement of the ventilation cover 2. At the same time, the fixing ring 4 is pushed by the spring 402, and the fixing ring 4 pushes the connecting pipe 3 to maintain an upward lifting state on the drain pipe 1, so that the trapezoidal locking tongue 304 clamps the upper end of the clamping groove 101 to prevent the connecting pipe 3 from shaking on the drain pipe 1.
[0027] Furthermore, an external threaded portion 305 is provided at the middle upper end of the outer end surface of the connecting tube 3 , and an internal threaded portion 501 is provided at the upper end of the inner end surface of the rotating tube 5 .
[0028] Furthermore, the external threaded portion 305 on the connecting pipe 3 is threadedly connected with the internal threaded portion 501 on the rotating tube 5, and the lower end of the outer end surface of the connecting pipe 3 is fixedly connected to the limiting ring 306. When the connecting pipe 3 is limitedly connected to the drain pipe 1, the rotating tube 5 is rotated to make the rotating tube 5 descend on the connecting pipe 3, driving the stop ring 502 to move to the lower end of one side of the locking tongue groove 302, thereby blocking the outward movement of the elastic connecting rod 303, making the connection between the connecting pipe 3 and the drain pipe 1 more stable, and limiting the descending distance of the rotating tube 5 by the limiting ring 306, so that after the rotating tube 5 is completely descended, the limiting ring 306 is just at the lower end of one side of the locking tongue groove 302.
[0029] Working principle: When in use, the internal connecting groove 301 of the connecting pipe 3 is inserted into the drain pipe 1. During the process of inserting the drain pipe 1 into the connecting groove 301, the upper end of the drain pipe 1 will push the trapezoidal locking tongue 304, causing the elastic connecting rod 303 to deform, thereby retracting the trapezoidal locking tongue 304 into the locking tongue groove 302. When the upper end of the drain pipe 1 is inserted into the connecting groove 301, the trapezoidal locking tongue 304 is inserted into the upper clamping groove 101 of the drain pipe 1. The trapezoidal locking tongue 304 is used to limit the distance between the drain pipe 1 and the connecting pipe 3 to prevent the connecting pipe 3 from falling off the drain pipe 1. At the same time, the trapezoidal locking tongue 304 is pulled outward to remove the connecting pipe 3 from the drain pipe 1, which is convenient for replacing the vent cover 2. At the same time, the fixing ring 4 is pushed by the spring 402, and the fixing ring 4 pushes the connecting pipe 3 to remain in an upward lifting state on the drain pipe 1, so that the trapezoidal The locking tongue 304 clamps the upper end of the inner groove 101 to prevent the connecting pipe 3 from shaking on the drain pipe 1. When the connecting pipe 3 is limitedly connected to the drain pipe 1, the rotating pipe 5 is rotated to make the rotating pipe 5 descend on the connecting pipe 3, driving the stop ring 502 to move to the lower end of one side of the locking tongue groove 302, blocking the outward movement of the elastic connecting rod 303, and limiting the descending distance of the rotating pipe 5 by the limiting ring 306, so that after the rotating pipe 5 is completely descended, the limiting ring 306 is just at the lower end of one side of the locking tongue groove 302, a plurality of support rods 201 are fixedly connected between the inner end face of the ventilation cover 2 and the upper end of the connecting pipe 3, and a blocking net 202 is fixedly connected between the upper end of the outer end face of the connecting pipe 3 and the lower end of the ventilation cover 2, and the blocking net 202 is used to block debris to prevent foreign matter from entering the drain pipe 1 and causing blockage.
[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A vent hood for building drainage, comprising a drainage pipe (1), characterized in that: A clamping groove (101) is provided in the middle of the end surfaces on both sides of the drainage pipe (1); the upper end of the drainage pipe (1) is connected to a ventilation cover (2); the lower end of the ventilation cover (2) is connected to a connecting pipe (3); a connecting groove (301) is provided inside the connecting pipe (3); a locking tongue groove (302) is provided at the middle lower end of the end surfaces on both sides of the connecting pipe (3); an elastic connecting rod (303) is fixedly connected inside the locking tongue groove (302); a trapezoidal locking tongue (304) is fixedly connected to the lower end of one side of the elastic connecting rod (303); a fixing ring (4) is fixedly connected to the middle upper end of the connection groove (301); a supporting ring (401) is connected to the lower end of the fixing ring (4); a rotating pipe (5) is rotatably connected to the outer end surface of the connecting pipe (3); a stop ring (502) is fixedly connected to the lower end of the rotating pipe (5).
2. A ventilation hood for building drainage according to claim 1, characterized in that: A plurality of support rods (201) are fixedly connected between the inner end surface of the ventilation hood (2) and the upper end of the connecting pipe (3), and a blocking net (202) is fixedly connected between the upper end of the outer end surface of the connecting pipe (3) and the lower end of the ventilation hood (2).
3. A ventilation hood for building drainage according to claim 1, characterized in that: The lower end surface of the fixing ring (4) and the upper end surface of the supporting ring (401) are fixedly connected via a plurality of springs (402).
4. A ventilation hood for building drainage according to claim 1, characterized in that: The drainage pipe (1) is inserted into the internal connection groove (301) of the connection pipe (3) to lift up the support ring (401) so that the spring (402) contracts.
5. A ventilation hood for building drainage according to claim 4, characterized in that: The trapezoidal locking tongue (304) on the elastic connecting rod (303) inside the locking tongue groove (302) of the connecting pipe (3) is inserted into the clamping groove (101) on the drainage pipe (1).
6. The ventilation hood for building drainage according to claim 1, characterized in that: An external threaded portion (305) is provided at the middle upper end of the outer end surface of the connecting tube (3), and an internal threaded portion (501) is provided at the upper end of the inner end surface of the rotating tube (5).
7. A ventilation hood for building drainage according to claim 6, characterized in that: The external threaded portion (305) on the connecting tube (3) is threadedly connected to the internal threaded portion (501) on the rotating tube (5), and the lower end of the outer end surface of the connecting tube (3) is fixedly connected to a limiting ring (306).