Carbon steel ventilating duct convenient to fix and install

Abstract

The utility model relates to the technical field of ventilation pipelines, in particular to a carbon steel ventilation pipeline convenient to fix and install, which comprises a first pipeline and a second pipeline, the second pipeline is installed on one side of the first pipeline, a locking assembly is arranged on the surface of the first pipeline, the locking assembly comprises a U-shaped buckling cover, the U-shaped buckling cover is connected with the surface of the first pipeline in a sleeved mode, and the U-shaped buckling cover is connected with the second pipeline in a sleeved mode. An insertion hole is formed in the side surface of the U-shaped buckle cover, a positioning pin is inserted in the inner wall, located in the insertion hole, of the U-shaped buckle cover, a grab handle is fixedly connected to one side of the positioning pin, a storage cavity is formed in the surface of the U-shaped buckle cover, and a fixing rod is slidably connected to the inner wall, located in the storage cavity, of the U-shaped buckle cover. According to the utility model, through the arrangement of the locking assembly and the reinforcing assembly, the stability of an installation part can be ensured while the installation of a worker is facilitated, so that the problem that the stability of the installation structure is relatively poor as the installation structure is locked only by a single threaded rod is reduced, and the locking effect of the installation structure is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a carbon steel ventilation duct which is easy to fix and install. Background Art

[0002] Carbon steel ventilation duct is a kind of piping facility widely used in ventilation systems. It is mainly made of carbon steel and has high strength and certain corrosion resistance. This type of ventilation duct usually adopts a circular or rectangular cross-section. Its design and production focus on sealing and air circulation. In the ventilation systems of industrial plants, commercial buildings, underground parking lots and other places, carbon steel ventilation duct plays an important role in transporting air, removing exhaust gas and regulating the indoor air environment.

[0003] Prior art, such as the utility model with publication number CN218599078U, discloses a carbon steel ventilation duct that is easy to fix and install. The patent adopts a first pipe and a second pipe, and the outer surfaces of the opposite ends of the first pipe and the second pipe are fixedly connected to the first frame and the second frame respectively. The right end surface of the first frame is symmetrically fixedly connected to the first and second rods on the upper and lower sides. The second frame is symmetrically provided with a first insertion hole and a second insertion hole on the upper and lower sides. The right end of the first insertion rod passes through the first insertion hole and extends to the outside of the second frame. The right end of the second insertion rod passes through the second insertion hole and extends to the outside of the second frame. The first insertion rod and the second insertion rod are both provided with a limited insertion hole. A limited mechanism is provided on the outside of the second pipe, and a locking mechanism is provided on the bottom end surface of the second pipe. This solves the problem of using multiple fixing bolts to fix the first pipe and the second pipe, which is cumbersome to operate. When using fixing bolts for installation, it is necessary to match the fixing bolts one by one with the fixing holes, insert them into the fixing holes, and then tighten the fixing bolts one by one, which is not very convenient to operate and is time-consuming and labor-intensive.

[0004] During the installation of ventilation ducts, existing ventilation ducts such as the above-mentioned ones need to be locked with the help of threaded rods. During operation, the staff must rotate the threaded rods multiple times to lock the threaded rods. In addition, the threaded rods used are only installed below the ducts, causing the force point of the fixed structure to be located at the lower end, which in turn leads to relatively small force on the upper side, resulting in poor stability of the fixed structure. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the operator has to rotate the threaded rod multiple times during operation to lock the threaded rod, and the threaded rod used is only installed below the pipe, so that the force point of the fixed structure is located at the lower end, which in turn leads to relatively small force on the upper side, resulting in poor stability of the fixed structure. A carbon steel ventilation duct that is easy to fix and install is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a carbon steel ventilation duct that is easy to fix and install, comprising a duct one and a duct two, the duct two being installed on one side of the duct one, the surface of the duct one being provided with a locking assembly, the locking assembly comprising a U-shaped buckle cover, the U-shaped buckle cover being socketed with the surface of the duct one, the side surface of the U-shaped buckle cover being provided with an insertion hole, the inner wall of the U-shaped buckle cover being located at the insertion hole being inserted with a positioning pin, one side of the positioning pin being fixedly connected to a handle, the surface of the U-shaped buckle cover being provided with a storage cavity, the inner wall of the U-shaped buckle cover being located at the storage cavity being slidably connected to a fixing rod, the arc surface of the fixing rod being fixedly connected to a force-loading plate, the surface of the force-loading plate being fixedly connected to a restraining spring, and the side surface of the fixing rod being fixedly connected to a connecting frame.

[0007] Preferably, the arc surface of the positioning pin is fixedly connected to a limiting protrusion, the limiting protrusion is fixedly connected to the side surface of the handle, and the limiting protrusion is plugged into the inner wall of the socket. Through the cooperation between the limiting protrusion and the socket, the insertion direction of the positioning pin can be guided and restricted.

[0008] Preferably, the U-shaped buckle cover is sleeved on the surface of pipe 2, and circular holes are provided on the surfaces of pipe 1 and pipe 2. The positioning pin is plugged into the inner wall of the circular hole. A through hole is provided on the arc surface of the positioning pin, and the fixing rod is plugged into the inner wall of the through hole. The U-shaped buckle cover can be used to preliminarily limit the connection between pipe 1 and pipe 2, and can ensure the stability of pipe 1 and pipe 2 in use.

[0009] Preferably, the force-carrying plate is slidably connected to the inner wall of the storage cavity, and the side of the constraint spring away from the force-carrying plate is fixedly connected to the inner wall of the storage cavity. The position of the fixed rod can be constrained by the cooperation between the constraint spring and the force-carrying plate.

[0010] Preferably, a reinforcement component is provided on the surface of the pipe one, and the reinforcement component includes an L-shaped frame, the L-shaped frame is fixedly connected to the surface of the pipe one, the surface of the L-shaped frame is fixedly connected with a reinforcing rib, the side surface of the L-shaped frame is fixedly connected with a bayonet, the side surface of the U-shaped buckle cover is fixedly connected with a pull plate, and a slot is provided on the side of the pull plate away from the U-shaped buckle cover. The structural strength of the bending part of the L-shaped frame can be increased by the reinforcing rib to improve the firmness of the L-shaped frame.

[0011] Preferably, the L-shaped frame contacts the surface of the pull plate, and the number of the reinforcing ribs is two, and the two reinforcing ribs are symmetrically arranged about the L-shaped frame. The L-shaped frame can support and limit the position of the pin to ensure that the pin can be stably inserted into the slot.

[0012] Preferably, the bayonet is plugged into the inner wall of the slot, and the L-shaped frame and the pull plate can be connected through the cooperation between the bayonet and the slot, thereby achieving preliminary restriction on the position of the U-shaped buckle cover.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] The U-shaped buckle cover is pushed forward and the U-shaped buckle cover pushes the pull plate, which is sleeved onto the surface of the bayonet through the slot and preliminarily limits the position of the U-shaped buckle cover under the interference fit of the bayonet pin and the slot. When the U-shaped buckle cover is completely sleeved on the connection part of the pipe one and the pipe two, the connecting frame is pulled, and the connecting frame pulls the fixing rod, and the fixing rod cooperates with the load-bearing plate to squeeze the restraining spring. When the fixing rod is pulled to the maximum spacing, the positioning pin is taken out by the handle, and the limiting protrusion on the surface of the positioning pin is aligned with the socket, and the buckle cover is pushed forward and the U-shaped buckle cover is pushed forward and the U-shaped buckle cover pushes the pull plate, which is sleeved onto the surface of the bayonet pin through the slot and preliminarily limits the position of the U-shaped buckle cover under the interference fit of the bayonet pin and the slot. Move the handle, and the handle pushes the positioning pin and the limiting protrusion into the socket. The positioning pin is inserted into the round hole after passing through the socket. When the positioning pin is fully inserted into the socket, release the connecting frame. At the same time, the fixing rod and the load-bearing plate lose the pressure on the limit spring. The limit spring loses the pressure and rebounds, and pushes the load-bearing plate and the fixing rod to reset. The fixing rod is reset and inserted into the through hole, and the positioning pin is locked. Then the assembly operation of pipe one and pipe two is completed. By setting the locking component and the reinforcement component, the stability of the installation part can be ensured while facilitating the installation of the staff, thereby reducing the problem that the installation structure relies on only a single threaded rod for locking, resulting in poor stability of the installation structure, and further improving the locking effect of the installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural diagram of a carbon steel ventilation duct that is easy to fix and install;

[0016] Figure 2 The utility model provides a structural schematic diagram of a placement device for a carbon steel ventilation duct that is easy to fix and install;

[0017] Figure 3 The utility model provides a schematic diagram of a locking assembly structure of a carbon steel ventilation duct that is easy to fix and install;

[0018] Figure 4 The utility model proposes a carbon steel ventilation duct which is easy to fix and install. Figure 3 Schematic diagram of the structure at A in the middle;

[0019] Figure 5 The utility model provides a schematic diagram of a partial locking assembly structure of a carbon steel ventilation duct that is easy to fix and install;

[0020] Figure 6 The utility model provides a structural schematic diagram of a reinforcement component of a carbon steel ventilation duct that is easy to fix and install.

[0021] Legend:

[0022] 1. Pipe 1; 2. Pipe 2; 3. Locking assembly; 31. U-shaped buckle cover; 32. Socket; 33. Positioning pin; 34. Handle; 35. Limiting protrusion; 36. Storage cavity; 37. Fixing rod; 38. Loading plate; 39. Restraint spring; 310. Connecting frame; 4. Reinforcement assembly; 41. L-shaped frame; 42. Reinforcement rib; 43. Pin; 44. Pull plate; 45. Slot. DETAILED DESCRIPTION

[0023] See also Figures 1-6 The utility model provides a technical solution: a carbon steel ventilation duct that is easy to fix and install, including a duct 1 and a duct 2, the duct 2 2 is installed on one side of the duct 1, the surface of the duct 1 is provided with a locking component 3, and the surface of the duct 1 is provided with a reinforcement component 4.

[0024] The specific configuration and functions of the locking component 3 and the reinforcement component 4 will be described in detail below.

[0025] In this embodiment: the locking assembly 3 includes a U-shaped buckle cover 31, the U-shaped buckle cover 31 is socketed with the surface of the pipe 1, the side surface of the U-shaped buckle cover 31 is provided with a socket 32, the inner wall of the U-shaped buckle cover 31 is inserted with a positioning pin 33, one side of the positioning pin 33 is fixedly connected to a handle 34, the surface of the U-shaped buckle cover 31 is provided with a storage cavity 36, the inner wall of the U-shaped buckle cover 31 is slidably connected to a fixing rod 37, the arc surface of the fixing rod 37 is fixedly connected to a load-bearing plate 38, the surface of the load-bearing plate 38 is fixedly connected to a restraining spring 39, and the side surface of the fixing rod 37 is fixedly connected to a connecting frame 310.

[0026] Specifically, the arc surface of the positioning pin 33 is fixedly connected to the limiting protrusion 35, the limiting protrusion 35 is fixedly connected to the side surface of the handle 34, and the limiting protrusion 35 is plugged into the inner wall of the socket 32. Through the cooperation between the limiting protrusion 35 and the socket 32, the insertion direction of the positioning pin 33 can be guided and restricted.

[0027] Specifically, the U-shaped buckle cover 31 is sleeved on the surface of pipe 2 2, and circular holes are provided on the surfaces of pipe 1 and pipe 2 2. The positioning pin 33 is plugged into the inner wall of the circular hole. A through hole is provided on the arc surface of the positioning pin 33, and the fixing rod 37 is plugged into the inner wall of the through hole.

[0028] In this embodiment, the U-shaped buckle cover 31 can be used to preliminarily limit the connection between pipe 1 and pipe 2 2, and ensure the stability of pipe 1 and pipe 2 2 in use.

[0029] Specifically, the force-carrying plate 38 is slidably connected to the inner wall of the storage chamber 36, and the side of the restraint spring 39 away from the force-carrying plate 38 is fixedly connected to the inner wall of the storage chamber 36. Through the cooperation between the restraint spring 39 and the force-carrying plate 38, the position of the fixing rod 37 can be constrained.

[0030] In this embodiment: the reinforcement component 4 includes an L-shaped frame 41, the L-shaped frame 41 is fixedly connected to the surface of the pipe 1, the surface of the L-shaped frame 41 is fixedly connected with a reinforcing rib 42, the side surface of the L-shaped frame 41 is fixedly connected with a latch 43, the side surface of the U-shaped buckle cover 31 is fixedly connected with a pull plate 44, and the pull plate 44 is provided with a slot 45 on the side away from the U-shaped buckle cover 31.

[0031] In this embodiment, the reinforcing ribs 42 can increase the structural strength of the bent portion of the L-shaped frame 41 to improve the firmness of the L-shaped frame 41 .

[0032] Specifically, the L-shaped frame 41 contacts the surface of the pull plate 44, and there are two reinforcing ribs 42. The two reinforcing ribs 42 are symmetrically arranged about the L-shaped frame 41. The L-shaped frame 41 can support and limit the position of the pin 43 to ensure that the pin 43 can be stably inserted into the slot 45.

[0033] Specifically, the latch 43 is plugged into the inner wall of the slot 45 .

[0034] In this embodiment, the L-shaped frame 41 and the pull plate 44 can be connected by the cooperation between the latch pin 43 and the latch slot 45 , thereby achieving a preliminary restriction on the position of the U-shaped buckle cover 31 .

[0035] Working principle: When installing pipe 1 and pipe 2, make pipe 1 abut against the side of pipe 2, take the U-shaped buckle cover 31, and make the slots 45 of the pull plates 44 on both sides of the U-shaped buckle cover 31 coincide with the bayonet 43, push the U-shaped buckle cover 31, and the U-shaped buckle cover 31 pushes the pull plates 44, and the pull plates 44 are sleeved onto the surface of the bayonet 43 through the slots 45, and under the interference fit between the bayonet 43 and the slots 45, the position of the U-shaped buckle cover 31 is preliminarily restricted. When the U-shaped buckle cover 31 is completely sleeved onto the connection part of pipe 1 and pipe 2, pull the connecting frame 310, and the connecting frame 310 pulls the fixing rod 37. The fixing rod 37 cooperates with the load-bearing plate 38 to squeeze the constraint spring 39. When the fixing rod 37 is pulled to the maximum spacing, take the positioning pin 33 through the handle 34, and align the limiting protrusion 35 on the surface of the positioning pin 33 with the insertion pin. The handle 34 is pushed and the handle 34 pushes the locating pin 33 and the limiting protrusion 35 into the socket 32. The locating pin 33 is inserted into the round hole after passing through the socket 32. When the locating pin 33 is fully inserted into the socket 32, the connecting frame 310 is released. At the same time, the fixing rod 37 and the load-bearing plate 38 lose the pressure applied to the limiting spring. The limiting spring loses the pressure and rebounds, and pushes the load-bearing plate 38 and the fixing rod 37 to reset. The fixing rod 37 is reset and inserted into the through hole, and the locating pin 33 is locked. Then the assembly operation of pipe 1 and pipe 2 2 is completed. By setting the locking component 3 and the reinforcement component 4, the stability of the installation part can be ensured while the installation is convenient for the staff, thereby reducing the problem that the installation structure relies only on a single threaded rod for locking, resulting in poor stability of the installation structure, and further improving the locking effect of the installation structure.

Claims

1. A carbon steel ventilation duct that is easy to fix and install, comprising a duct 1 (1) and a duct 2 (2), characterized in that: The pipe 2 (2) is installed on one side of the pipe 1 (1), and a locking assembly (3) is provided on the surface of the pipe 1 (1). The locking assembly (3) includes a U-shaped buckle cover (31), and the U-shaped buckle cover (31) is sleeved with the surface of the pipe 1 (1). The side surface of the U-shaped buckle cover (31) is provided with a socket (32), and a positioning pin (33) is inserted into the inner wall of the socket (32) of the U-shaped buckle cover (31), and a handle (34) is fixedly connected to one side of the positioning pin (33). A storage cavity (36) is provided on the surface of the U-shaped buckle cover (31), and a fixing rod (37) is slidably connected to the inner wall of the storage cavity (36) of the U-shaped buckle cover (31), and the arc surface of the fixing rod (37) is fixedly connected to a load plate (38), and the surface of the load plate (38) is fixedly connected to a restraining spring (39), and the side surface of the fixing rod (37) is fixedly connected to a connecting frame (310).

2. The carbon steel ventilation duct that is easy to fix and install according to claim 1 is characterized in that: The arc surface of the positioning pin (33) is fixedly connected to a limiting protrusion (35), the limiting protrusion (35) is fixedly connected to the side surface of the handle (34), and the limiting protrusion (35) is plugged into the inner wall of the insertion hole (32).

3. The carbon steel ventilation duct that is easy to fix and install according to claim 1 is characterized in that: The U-shaped buckle cover (31) is sleeved with the surface of the second pipe (2), the surfaces of the first pipe (1) and the second pipe (2) are both provided with circular holes, the positioning pin (33) is plugged into the inner wall of the circular hole, the arc surface of the positioning pin (33) is provided with a through hole, and the fixing rod (37) is plugged into the inner wall of the through hole.

4. The carbon steel ventilation duct that is easy to fix and install according to claim 1 is characterized in that: The force-carrying disc (38) is slidably connected to the inner wall of the receiving chamber (36), and the side of the restraining spring (39) away from the force-carrying disc (38) is fixedly connected to the inner wall of the receiving chamber (36).

5. The carbon steel ventilation duct that is easy to fix and install according to claim 1 is characterized in that: The surface of the pipe (1) is provided with a reinforcement assembly (4), the reinforcement assembly (4) comprises an L-shaped frame (41), the L-shaped frame (41) is fixedly connected to the surface of the pipe (1), the surface of the L-shaped frame (41) is fixedly connected with a reinforcing rib (42), the side surface of the L-shaped frame (41) is fixedly connected with a latch (43), the side surface of the U-shaped buckle cover (31) is fixedly connected with a pull plate (44), and the pull plate (44) is provided with a slot (45) on a side away from the U-shaped buckle cover (31).

6. The carbon steel ventilation duct that is easy to fix and install according to claim 5, characterized in that: The L-shaped frame (41) contacts the surface of the pull plate (44), and the number of the reinforcing ribs (42) is two, and the two reinforcing ribs (42) are symmetrically arranged with respect to the L-shaped frame (41).

7. The carbon steel ventilation duct that is easy to fix and install according to claim 5, characterized in that: The latch pin (43) is plugged into the inner wall of the latch slot (45).

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