Expanding and shrinking machine for air conditioner pipe

Abstract

The utility model provides an air conditioner pipe expanding and shrinking machine which comprises a bottom plate, an expanding and shrinking mechanism is arranged at the top of one end of the bottom plate, the expanding and shrinking mechanism comprises a first fixing plate, a hydraulic cylinder, a flaring punch and a necking punch, the first fixing plate is fixedly arranged at the top of one end of the bottom plate, and the hydraulic cylinder is fixedly arranged at the top of the other end of the bottom plate. The hydraulic cylinder is fixedly arranged on one side of the first fixing plate, and a limiting mechanism is arranged at the other end of the bottom plate. When in use, the expanding and shrinking machine is directly and flatly placed on the ground, the size of the expanding and shrinking machine can be reduced by adjusting a sliding plate and a baffle, the expanding and shrinking machine is convenient to move and carry, and the practicability is high; air conditioner pipes with different lengths can be limited through a second adjusting screw rod, a sliding plate and a baffle, the air conditioner pipes can be extruded and limited conveniently through a first adjusting screw rod, a limiting plate and a rubber protrusion, the stability of the air conditioner pipes can be improved, a flaring punch and a necking punch can be extruded conveniently through a hydraulic cylinder, an extrusion plate and an inserting block, and therefore the air conditioner pipes with different lengths can be extruded conveniently. Therefore, flaring and necking of the air conditioner pipe are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion and contraction of air-conditioning pipes, in particular to an expansion and contraction machine for air-conditioning pipes. Background Art

[0002] The expansion and contraction of air-conditioning pipes refers to enlarging or reducing the opening at the end of the air-conditioning pipe to facilitate better connection and installation of related equipment, such as air conditioners, fluorine adding equipment, etc., to avoid fluorine leakage caused by the mismatch of the opening size when the air conditioner is closed.

[0003] A Chinese utility model patent with publication number CN212442927U proposes a pipe opening expansion and contraction processing device for an air-conditioning dispenser, comprising a base, an upper side wall of the base having a socket, the upper side wall of the base being integrally formed with two vertical plates symmetrically arranged on the outside of the socket, both of the two vertical plates being inserted with horizontally arranged cross bars, and the opposite ends of the two cross bars being fixedly connected with clamping plates; this device is relatively large in size and needs to be vertically mounted on a support, which is inconvenient to move and carry.

[0004] To this end, the utility model provides an expander and shrinker for air-conditioning pipes. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an expander for air-conditioning pipes to solve the problems raised in the above-mentioned background technology. When in use, the utility model is directly placed flat on the ground. By adjusting the slide plate and the baffle, the volume of the expander can be reduced, making it convenient to move and carry the expander, and the utility model is highly practical.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an expander and shrinker for air-conditioning pipes, comprising a base plate, an expander and shrinker mechanism is arranged on the top of one end of the base plate, the expander and shrinker mechanism comprises a first fixed plate, a hydraulic cylinder, an expanding punch and a shrinking punch, the first fixed plate is fixedly arranged on the top of one end of the base plate, the hydraulic cylinder is fixedly arranged on one side of the first fixed plate, a limiting mechanism is arranged on the other end of the base plate, the limiting mechanism comprises a second fixed plate, a limiting plate, a slide plate and a baffle, the limiting plate is slidably arranged on both sides of the top of the base plate through the limiting mechanism, one side of the limiting plate is in the shape of an arc, a rubber protrusion is arranged on the arc surface of the limiting plate, the baffle is fixedly arranged on one end of the slide plate, and the baffle is arranged on one side of the limiting plate.

[0007] Furthermore, an extrusion plate is fixedly provided at one end of the output rod of the hydraulic cylinder, a plug-in block is fixedly provided at one side of the extrusion plate, and a plug-in groove is provided inside the plug-in block.

[0008] Furthermore, one end of the expanding punch and the shrinking punch is fixedly provided with a plug connector, the plug connector is plugged and installed inside the plug slot, the plug slot is fixedly provided with a magnet, and the plug connector is made of iron.

[0009] Furthermore, the second fixing plates are symmetrically fixedly arranged on both sides of the top of the other end of the bottom plate, and the second fixing plates are arranged on the outside of the limiting plate.

[0010] Furthermore, a first adjusting screw is installed at the center position of the other side of the limiting plate for limited rotation. The first adjusting screw is threadedly installed inside the second fixing plate, and a knob is fixedly provided at the outer end of the first adjusting screw.

[0011] Furthermore, the limiting mechanism includes a slide groove, and a slider is slidably installed inside the slide groove, and the slider is fixedly arranged at the bottom of the limiting plate.

[0012] Furthermore, a mounting groove is provided inside the other end of the bottom plate, and one end of the slide plate is mounted in a limited sliding manner inside the mounting groove.

[0013] Furthermore, a second adjusting screw is installed in the interior of the installation groove for lateral limiting rotation. The second adjusting screw is screwed to the inside of the baffle and the slide plate through a screw hole, and a knob is fixedly provided on the outer end of the second adjusting screw.

[0014] The beneficial effects of the utility model are as follows: the expander and shrinker for air-conditioning pipes of the utility model can be directly placed flat on the ground when in use, and the volume of the expander and shrinker can be reduced by adjusting the slide plate and the baffle plate, so that the expander and shrinker can be conveniently moved and carried, and the utility model is highly practical; the air-conditioning pipes of different lengths can be limited by the second adjusting screw, the slide plate and the baffle plate, and the air-conditioning pipes can be conveniently squeezed and limited by the first adjusting screw, the limiting plate and the rubber protrusion, which can improve the stability of the air-conditioning pipe, and facilitate the squeezing of the expanding punch and the shrinking punch by the hydraulic cylinder, the extrusion plate and the plug-in block, thereby facilitating the expanding and shrinking of the air-conditioning pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an expander and shrinker for air conditioning pipes of the utility model;

[0016] Figure 2 This is a front cross-sectional view of an expander and shrinker for air conditioning pipes of the utility model;

[0017] Figure 3 This is a structural diagram of a limit plate of an expander and shrinker for air conditioning pipes of the utility model;

[0018] Figure 4 This is a structural diagram of an expanding punch of an expanding and shrinking machine for air conditioning pipes of the utility model;

[0019] Figure 5 This is a structural diagram of a shrinking punch of an expander for air-conditioning pipes of the utility model;

[0020] In the figure: 1, bottom plate; 2, hydraulic cylinder; 3, first fixed plate; 4, extrusion plate; 5, plug-in block; 6, expansion punch; 7, second fixed plate; 8, limit plate; 9, first adjusting screw; 10, slide plate; 11, baffle plate; 12, second adjusting screw; 13, slide groove; 14, slider; 15, plug joint; 16, shrinking punch. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: an expander and shrinker for air-conditioning pipes, comprising a base plate 1, an expander and shrinker mechanism is arranged at the top of one end of the base plate 1, the expander and shrinker mechanism comprises a first fixed plate 3, a hydraulic cylinder 2, an expanding punch 6 and a shrinking punch 16, the first fixed plate 3 is fixedly arranged at the top of one end of the base plate 1, the hydraulic cylinder 2 is fixedly arranged on one side of the first fixed plate 3, a limiting mechanism is arranged at the other end of the base plate 1, the limiting mechanism comprises a second fixed plate 7, a limiting plate 8, a slide plate 10 and a baffle 11, the limiting plate 8 is slidably arranged on both sides of the top of the base plate 1 through the limiting mechanism, one side of the limiting plate 8 is in an arc shape, a rubber protrusion is arranged on the arc surface of the limiting plate 8, the baffle 11 is fixedly arranged at one end of the slide plate 10, the baffle 11 is arranged on one side of the limiting plate 8, the baffle 11, the arc surface on the limiting plate 8 and the rubber protrusion are convenient for squeezing and limiting the air-conditioning pipe, so as to prevent the air-conditioning pipe from shaking during the process of expanding or shrinking, and improve the stability of the air-conditioning pipe.

[0023] In this embodiment, an extrusion plate 4 is fixedly provided at one end of the output rod of the hydraulic cylinder 2, a plug-in block 5 is fixedly provided at one side of the extrusion plate 4, a plug-in slot is provided inside the plug-in block 5, and a plug-in connector 15 is fixedly provided at one end of the expanding punch 6 and the shrinking punch 16. The plug-in connector 15 is plugged and installed inside the plug-in slot, and a magnet is fixedly provided inside the plug-in slot. The plug-in connector 15 is made of iron. The plug-in connector 15 and the plug-in slot are convenient for disassembly and replacement of the expanding punch 6 and the shrinking punch 16. The magnetic attraction of the magnet can improve the stability of the expanding punch 6 and the shrinking punch 16, and facilitate the hydraulic cylinder 2, the extrusion plate 4 and the plug-in block 5 to drive the expanding punch 6 and the shrinking punch 16 to move horizontally.

[0024] In this embodiment, the second fixing plate 7 is symmetrically fixed on both sides of the top of the other end of the base plate 1, and the second fixing plate 7 is arranged on the outside of the limiting plate 8. The first adjusting screw 9 is installed with a limited rotation at the center position of the other side of the limiting plate 8. The first adjusting screw 9 is screwed and installed inside the second fixing plate 7. The outer end of the first adjusting screw 9 is fixedly provided with a knob. The limiting mechanism includes a slide groove 13, and a slider 14 is installed with a limited sliding inside the slide groove 13. The slider 14 is fixedly arranged at the bottom of the limiting plate 8. The limiting plate 8 can be limited by the action of the slider 14 and the slide groove 13, thereby improving the stability of the limiting plate 8 during movement. The first adjusting screw 9 is screwed and rotated by the knob, which is convenient for adjusting the position of the limiting plate 8, so that the two limiting plates 8 are close to each other, which is convenient for clamping and fixing the air-conditioning pipe.

[0025] In this embodiment, a mounting groove is opened inside the other end of the base plate 1, and one end of the slide plate 10 is limitedly slidably installed inside the mounting groove, and a second adjusting screw 12 is installed inside the mounting groove for lateral limiting rotation. The second adjusting screw 12 is screwed to the inside of the baffle 11 and the slide plate 10 through a screw hole, and a knob is fixedly provided on the outer end of the second adjusting screw 12. The second adjusting screw 12 can drive the slide plate 10 and the baffle 11 to move laterally, and adjust the distance between the baffle 11 and one end of the limiting plate 8, so as to facilitate the limiting of air-conditioning pipes of different lengths and the subsequent expansion and contraction of the air-conditioning pipes.

[0026] When using the expander and shrinker for air-conditioning pipes, the expander and shrinker is directly placed flat on the ground, and the expanding punch 6 or the shrinking punch 16 is installed on one side of the plug-in block 5 through the plug-in connector 15. The plug-in connector 15 is installed inside the plug-in slot, and the plug-in connector 15 is fixed by the magnetic attraction of the magnet, thereby improving the stability of the expanding punch 6 and the shrinking punch 16. The second adjusting screw 12 is turned by the knob, and the second adjusting screw 12 is screwed to drive the slide plate 10 to slide inside the installation slot, and drive the baffle 11 to adjust the distance between the baffle 11 and the limit plate 8. The air-conditioning pipe to be expanded or shrunk is placed between the limit plates 8 on both sides, and one end of the air-conditioning pipe is in contact with the baffle 11. The knob and the second adjusting screw 12 are turned to drive the slide plate 10 and the baffle 11 through the second adjusting screw 12. The baffle 11 Push the air-conditioning pipe to move, adjust the position of the other end of the air-conditioning pipe, adjust it to one side of the expanding punch 6 or the shrinking punch 16, turn the first adjusting screw 9 by the knob, the first adjusting screw 9 drives the limit plates 8 on both sides to approach each other, the limit plates 8 squeeze the air-conditioning pipe through the arc surface, the rubber protrusion can increase the friction between the air-conditioning pipe and the arc surface of the limit plate 8, improve the stability of the air-conditioning pipe, start the hydraulic cylinder 2, the output rod of the hydraulic cylinder 2 drives the extrusion plate 4 to move horizontally, the extrusion plate 4 drives the expanding punch 6 or the shrinking punch 16 to squeeze one end of the air-conditioning pipe through the plug block 5 and the plug connector 15, so as to facilitate the expansion and shrinking of the air-conditioning pipe, and the volume of the expander can be reduced by adjusting the slide plate 10 and the baffle 11, which is convenient for moving and carrying the expander, and has high practicality.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An expander and shrinker for air conditioning pipes, comprising a base plate (1), characterized in that: An expansion and contraction mechanism is arranged at the top of one end of the base plate (1), and the expansion and contraction mechanism comprises a first fixed plate (3), a hydraulic cylinder (2), an expanding punch (6) and a shrinking punch (16); the first fixed plate (3) is fixedly arranged at the top of one end of the base plate (1); the hydraulic cylinder (2) is fixedly arranged on one side of the first fixed plate (3); a limiting mechanism is arranged at the other end of the base plate (1); the limiting mechanism comprises a second fixed plate (7), a limiting plate (8), a slide plate (10) and a baffle plate (11); the limiting plate (8) is slidably arranged on both sides of the top of the base plate (1) through the limiting mechanism; one side of the limiting plate (8) is in the shape of an arc; a rubber protrusion is arranged on the arc surface of the limiting plate (8); the baffle plate (11) is fixedly arranged at one end of the slide plate (10); and the baffle plate (11) is arranged on one side of the limiting plate (8).

2. The expander and shrinker for air conditioning pipes according to claim 1, characterized in that: An extrusion plate (4) is fixedly provided at one end of the output rod of the hydraulic cylinder (2), a plug-in block (5) is fixedly provided at one side of the extrusion plate (4), and a plug-in groove is provided inside the plug-in block (5).

3. The expander and shrinker for air conditioning pipes according to claim 2, characterized in that: One end of each of the expanding punch (6) and the shrinking punch (16) is fixedly provided with a plug connector (15), the plug connector (15) is plugged and installed inside a plug slot, a magnet is fixedly provided inside the plug slot, and the plug connector (15) is made of iron.

4. The expander and shrinker for air conditioning pipes according to claim 1, characterized in that: The second fixing plate (7) is symmetrically fixedly arranged on both sides of the top of the other end of the bottom plate (1), and the second fixing plate (7) is arranged on the outside of the limiting plate (8).

5. The expander and shrinker for air conditioning pipes according to claim 4, characterized in that: A first adjusting screw (9) is installed at the center position of the other side of the limiting plate (8) for limiting rotation. The first adjusting screw (9) is threadedly installed inside the second fixing plate (7). A knob is fixedly provided at the outer end of the first adjusting screw (9).

6. The expander and shrinker for air conditioning pipes according to claim 5, characterized in that: The limiting mechanism comprises a slide groove (13), a slider (14) is installed inside the slide groove (13) in a limiting sliding manner, and the slider (14) is fixedly arranged at the bottom of the limiting plate (8).

7. The expander and shrinker for air conditioning pipes according to claim 1, characterized in that: A mounting groove is provided inside the other end of the base plate (1), and one end of the slide plate (10) is mounted in a limited sliding manner inside the mounting groove.

8. The expander and shrinker for air conditioning pipes according to claim 7, characterized in that: A second adjusting screw (12) is installed in the installation groove for lateral limiting rotation. The second adjusting screw (12) is screwed to the inside of the baffle (11) and the slide plate (10) through a screw hole. A knob is fixedly provided on the outer end of the second adjusting screw (12).

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