Port expanding device for silencer pipe fitting

Abstract

The utility model discloses a silencer pipe fitting port expanding device which comprises a stable base, two supporting columns are symmetrically and fixedly connected to the top end of the stable base along the center, positioning assemblies are fixedly connected to the bottom ends of the side walls of the supporting columns, connecting blocks are fixedly connected to the surfaces of the supporting columns in a sleeved mode, and hydraulic lifting cylinders are fixedly connected to the middles of the top ends of the connecting blocks. According to the scheme, the diameter expanding device is provided with the wire arranging assemblies, before the diameter expanding device works, a connecting wire sequentially presses limiting protruding blocks in the two wire arranging assemblies, then one ends of the two limiting protruding blocks can move towards the interior of a limiting frame, and meanwhile the other ends of the two limiting protruding blocks can move outwards; when the connecting line moves, the reset spring is driven to work until the connecting line enters the limiting frame, then the other ends of the two sets of limiting protruding blocks are restored to the original position by the reset spring, the position of the connecting line entering the limiting frame is limited, and the phenomenon that the connecting line is wound with other assemblies is avoided.

Description

Technical Field

[0001] This utility model relates to the field of silencer pipe fittings technology, and more specifically, to a silencer pipe fitting port diameter expansion device. Background Technology

[0002] A silencer is a noise reduction device used in airflow ducts that simultaneously transmit noise. It uses pipes with sound-absorbing linings, bends, or pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance to attenuate or reflect noise back into the duct. When processing silencer pipe fittings, the ports need to be flared.

[0003] For example, CN214133652U discloses a device for expanding the port diameter of a silencer pipe fitting. The key technical points of this device are: it includes a base, a top plate fixed to the upper surface of the base via a connecting rod, a hydraulic cylinder fixed to the surface of the top plate, a pressure plate fixed to the lower end of the hydraulic rod of the hydraulic cylinder via a flange, a die head fixed to the surface of the base, a support plate fixed to the inner surface of the connecting rod, and a convex sleeve fixed to the upper inner surface of the support plate. A pipe fitting is slidably inserted into the convex sleeve, and the convex sleeve is coaxial with the die head. It mainly positions the pipe fitting by inserting it into the convex sleeve and pressing it from top to bottom for easy positioning. After pressing, the pressure plate rises, which can drive the T-shaped rod to lift the stripping disc and facilitate stripping.

[0004] The above-mentioned muffler pipe fitting port expansion device still has some shortcomings: since the muffler is placed on top of the expansion device and its position is not limited, once the expansion device is affected by external force and vibrates, it will cause the muffler to tip over, thereby increasing the workload of the workers. Therefore, it is necessary to provide a muffler pipe fitting port expansion device. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a muffler pipe fitting port diameter expansion device. By setting up a cable management assembly, before the diameter expansion device operates, the connecting wire is first pressed sequentially against the limiting protrusions inside the two sets of cable management assemblies. Then, one end of the two sets of limiting protrusions moves inward into the limiting frame, while the other end moves outward. During this movement, a return spring is activated until the connecting wire enters the limiting frame. Immediately afterwards, the other end of the two sets of limiting protrusions is returned to its original position by the return spring, thus restricting the position of the connecting wire inside the limiting frame to prevent the connecting wire from tangling with other components, thereby solving the problems existing in the prior art.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a muffler pipe fitting port diameter expansion device, including a stable base, two support columns are symmetrically fixedly connected to the top of the stable base along the center, a positioning component is fixedly connected to the bottom of the side wall of the support column, a connecting block is fixedly sleeved on the surface of the support column, a hydraulic lifting cylinder is fixedly connected to the middle of the top of the connecting block, a connecting line is fixedly connected to the top of the hydraulic lifting cylinder, two cable management components are fixedly fixedly connected side by side at equal intervals on the middle of the back of the connecting block, and an expansion head is connected to the bottom of the hydraulic lifting cylinder through the connecting block.

[0007] The positioning component includes a connecting ring and stabilizing rods, and two stabilizing rods are fixedly connected to the surface of the connecting ring symmetrically along the center.

[0008] The connecting ring has two hydraulic telescopic rods fixedly connected symmetrically along its center, and one end of the stabilizing rod is connected to the bottom end of the side wall of the support column.

[0009] One end of the hydraulic telescopic rod is fixedly connected to an arc-shaped positioning plate, and the side wall of the arc-shaped positioning plate is bonded with an anti-slip pad.

[0010] The cable management assembly includes a connector, a limiting frame is fixedly connected to the front of the connector, and the back of the connector is connected to the middle of the back of the connector block.

[0011] Two stabilizing discs are fixedly connected symmetrically along the center on one side of the inner side of the limiting frame, and a return spring is fixedly connected to the front of the stabilizing disc.

[0012] The limiting frame has a limiting rod fixedly connected to both ends, and a limiting protrusion is movably sleeved on the surface of the limiting rod. One side of the back of the limiting protrusion is connected to one end of the return spring.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. In the above scheme, the diameter expansion device is equipped with a cable management component. Before the diameter expansion device works, the connecting wire is first pressed against the limiting protrusions inside the two sets of cable management components in sequence. Then, one end of the two sets of limiting protrusions will move into the limiting frame, and the other end of the two sets of limiting protrusions will move outward. During the movement, the return spring will work until the connecting wire enters the limiting frame. Then, the other end of the two sets of limiting protrusions will be returned to its original position by the return spring, which restricts the position of the connecting wire that has entered the limiting frame to avoid the connecting wire from getting tangled with other components.

[0015] 2. In the above scheme, the expansion device is equipped with a positioning component. When the port of the muffler pipe needs to be expanded, the bottom end of the muffler pipe is first placed inside the positioning component. Then, the two sets of hydraulic telescopic rods are activated simultaneously to move the arc-shaped positioning plate and the anti-slip pad until the side wall of the anti-slip pad is tightly attached to the bottom end of the muffler pipe. At this time, the muffler pipe can be fixed. Even if the expansion device is affected by external force, the muffler pipe will not tilt. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a rear view schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled positioning component of this utility model;

[0019] Figure 4 This is a schematic diagram showing the cable management component of this utility model disassembled.

[0020] [Figure Labels]

[0021] 1. Stabilizing base; 2. Support column; 3. Positioning component; 4. Connecting block; 5. Hydraulic lifting cylinder; 6. Connecting cable; 7. Cable management component; 8. Expanding head; 31. Connecting ring; 32. Stabilizing rod; 33. Hydraulic telescopic rod; 34. Arc-shaped positioning plate; 35. Anti-slip pad; 71. Connecting seat; 72. Limiting frame; 73. Stabilizing disc; 74. Return spring; 75. Limiting rod; 76. Limiting protrusion. Detailed Implementation

[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] Example 1:

[0024] Please see Figure 1-4 A muffler pipe fitting port expansion device includes a stable base 1, two support columns 2 are symmetrically fixedly connected to the top of the stable base 1 along the center, a positioning component 3 is fixedly connected to the bottom of the side wall of the support column 2, a connecting block 4 is fixedly sleeved on the surface of the support column 2, a hydraulic lifting cylinder 5 is fixedly connected to the middle of the top of the connecting block 4, a connecting line 6 is fixedly connected to the top of the hydraulic lifting cylinder 5, two cable management components 7 are fixedly fixedly connected at equal intervals to the middle of the back of the connecting block 4, and an expansion head 8 is connected to the bottom of the hydraulic lifting cylinder 5 through the connecting block 4.

[0025] The positioning component 3 includes a connecting ring 31 and a stabilizing rod 32. Two stabilizing rods 32 are fixedly connected to the surface of the connecting ring 31 along the center symmetrically. Two hydraulic telescopic rods 33 are fixedly connected to the inside of the connecting ring 31 along the center symmetrically. One end of the stabilizing rod 32 is connected to the bottom end of the side wall of the support column 2. One end of the hydraulic telescopic rod 33 is fixedly connected to an arc-shaped positioning plate 34. An anti-slip pad 35 is adhered to the side wall of the arc-shaped positioning plate 34. The cable management component 7 includes a connecting seat 71. A limiting frame 72 is fixedly connected to the front of the connecting seat 71. The back of the connecting seat 71 is connected to the middle of the back of the connecting block 4. Two stabilizing discs 73 are fixedly connected to one side of the inside of the limiting frame 72 along the center symmetrically. A return spring 74 is fixedly connected to the front of the stabilizing disc 73. Limiting rods 75 are fixedly connected to both ends of the limiting frame 72. Limiting protrusions 76 are movably sleeved on the surface of the limiting rods 75. One side of the back of the limiting protrusions 76 is connected to one end of the return spring 74.

[0026] Benefits: The anti-slip pad 35 helps to ensure the quality of the muffler fittings when fixing them, thereby reducing losses.

[0027] The working process of this utility model is as follows:

[0028] In order to prevent the connecting wire 6 from getting tangled with other components during operation, the expansion device is equipped with a wire management component 7. Before the expansion device starts working, the connecting wire 6 is first pressed against the limiting protrusions 76 inside the two sets of wire management components 7 in sequence. Then, one end of the two sets of limiting protrusions 76 will move into the limiting frame 72, while the other end of the two sets of limiting protrusions 76 will move outward. During the movement, the return spring 74 will be activated until the connecting wire 6 enters the limiting frame 72. Then, the other end of the two sets of limiting protrusions 76 will be returned to its original position by the return spring 74, thus restricting the position of the connecting wire 6 inside the limiting frame 72 to prevent the connecting wire 6 from getting tangled with other components.

[0029] In the above scheme, to prevent the muffler pipe from tipping over during operation, the expansion device is equipped with a positioning component 3. When the port of the muffler pipe needs to be expanded, the bottom end of the muffler pipe is first placed inside the positioning component 3. Then, the two sets of hydraulic telescopic rods 33 are activated simultaneously, causing them to move the arc-shaped positioning plate 34 and the anti-slip pad 35 until the side wall of the anti-slip pad 35 is tightly fitted with the bottom end of the muffler pipe. At this point, the muffler pipe can be fixed, and even if the expansion device is affected by external forces, the muffler pipe will not tip over.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for expanding the diameter of a silencer pipe fitting port, comprising a stabilizing base (1), characterized in that, The top of the stable base (1) is symmetrically connected to two support columns (2) along the center. The bottom of the side wall of the support column (2) is fixedly connected to a positioning component (3). The surface of the support column (2) is fixedly fitted with a connecting block (4). The middle of the top of the connecting block (4) is fixedly connected to a hydraulic lifting cylinder (5). The top of the hydraulic lifting cylinder (5) is fixedly connected to a connecting line (6). The middle of the back of the connecting block (4) is equidistantly connected to two cable management components (7). The bottom of the hydraulic lifting cylinder (5) is connected to an expansion head (8) through the connecting block (4).

2. The muffler pipe fitting port diameter expansion device according to claim 1, characterized in that, The positioning component (3) includes a connecting ring (31) and a stabilizing rod (32), and two stabilizing rods (32) are fixedly connected to the surface of the connecting ring (31) along the center symmetrically.

3. The muffler pipe fitting port diameter expansion device according to claim 2, characterized in that, The connecting ring (31) has two hydraulic telescopic rods (33) fixedly connected symmetrically along the center, and one end of the stabilizing rod (32) is connected to the bottom end of the side wall of the support column (2).

4. The muffler pipe fitting port diameter expansion device according to claim 3, characterized in that, One end of the hydraulic telescopic rod (33) is fixedly connected to an arc-shaped positioning plate (34), and the side wall of the arc-shaped positioning plate (34) is bonded with an anti-slip pad (35).

5. The muffler pipe fitting port diameter expansion device according to claim 1, characterized in that, The cable management assembly (7) includes a connector (71), with a limiting frame (72) fixedly connected to the front of the connector (71), and the back of the connector (71) connected to the middle of the back of the connector block (4).

6. The muffler pipe fitting port diameter expansion device according to claim 5, characterized in that, Two stabilizing discs (73) are fixedly connected symmetrically along the center on one side inside the limiting frame (72), and a return spring (74) is fixedly connected to the front of the stabilizing disc (73).

7. The muffler pipe fitting port diameter expansion device according to claim 5, characterized in that, Both ends of the limiting frame (72) are fixedly connected to limiting rods (75), and the surface of the limiting rods (75) is movably sleeved with limiting protrusions (76). One side of the back of the limiting protrusions (76) is connected to one end of the return spring (74).

Images