Fixed-length detection mechanism of spiral duct type air conditioner

Abstract

The utility model relates to the technical field of length detection devices, in particular to a fixed-length detection mechanism of a spiral duct machine, which comprises a base, the upper end of the base is fixedly connected with a limiting roller, the lower end of the base is provided with a fixed-length detection mechanism, and the fixed-length detection mechanism comprises a supporting block fixedly connected to the lower end of the base. The device comprises a supporting block, a moving groove is formed in the supporting block, a moving mechanism is arranged in the supporting block, a first rod piece is slidably connected to the interior of the moving groove, a second rod piece is rotatably connected to the right side of the first rod piece, and a sliding groove is formed in the right side of the second rod piece. Only when the spiral duct conforms to the length, the loudspeaker does not make a sound, and meanwhile, the second rod piece in the initial state is in a vertically downward state, so that normal work of the spiral duct machine is not affected, whether the spiral duct is qualified or not can be known through the loudspeaker when the length is detected, and the detection effect of the spiral duct is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of length detection devices, in particular to a fixed-length detection mechanism for a spiral duct machine. Background Art

[0002] Spiral ducts have no welding, no air leakage, no water leakage, low noise, and small ventilation resistance. They are widely used in civil facilities such as exhaust systems, subways, and trains.

[0003] When producing spiral ducts, it is necessary to carry out a fixed-length detection on the length of the spiral duct. Since detection devices cannot be installed at both ends during production, this will affect the growth of the spiral duct. The existing technology uses tools to detect after growth, and it is also necessary to manually read the values ​​for judgment. This procedure is more cumbersome and cannot be detected continuously and intuitively, which affects the growth rate of the spiral duct and has low applicability. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose a fixed-length detection mechanism for a spiral duct machine to solve the problem that detection devices cannot be provided at both ends during production, which will affect the growth of the spiral duct. The existing technology uses tools to perform detection after growth. Such a procedure is more cumbersome and cannot be detected continuously, which affects the growth speed of the spiral duct and has low applicability.

[0005] Based on the above purpose, the utility model provides a fixed-length detection mechanism for a spiral duct machine, comprising a base, the upper end of the base is fixedly connected to a limiting roller, and the lower end of the base is provided with a fixed-length detection mechanism;

[0006] The fixed-length detection mechanism includes a support block fixedly connected to the lower end of the base, a movable groove is opened inside the support block, a movable mechanism is arranged inside the support block, a first rod is slidably connected inside the movable groove, a second rod is rotatably connected to the right side of the first rod, a slide groove is opened on the right side of the second rod, a slider is slidably connected inside the slide groove, a first limit plate is fixed on the right side of the slider, a spring is fixedly connected to the lower end of the slider, a contact switch is fixedly connected to the upper end of the slide groove, a contact sheet is fixedly connected to the inside of the second rod, a speaker is fixedly connected to the lower end of the support block, the speaker is electrically connected to the contact switch, the contact sheet, the slider and the speaker are electrically connected, and a second limit plate is fixedly connected to the left side of the base.

[0007] Preferably, the moving mechanism comprises a motor fixedly connected to the right side of the supporting block, the output end of the motor is fixedly connected to a threaded rod, and the rod wall of the threaded rod is connected to the internal thread of the first rod.

[0008] Preferably, a supporting leg is fixedly connected to the lower end of the base.

[0009] Preferably, the lower right end of the movable groove is arc-shaped.

[0010] Preferably, the width and height of the second rod are the same as the width and height of the first rod.

[0011] Preferably, the upper end of the first limiting plate is made of wear-resistant steel.

[0012] Beneficial effects of the utility model:

[0013] When testing the spiral duct, the speaker will not make a sound only when the spiral duct meets the length requirements. At the same time, the second rod in the initial state is in a vertical downward position, which will not affect the normal operation of the spiral duct machine. When testing the length, the speaker can also be used to know whether the spiral duct is qualified, thereby improving the detection effect of the spiral duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the support block of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the second rod member in an embodiment of the utility model.

[0018] The markings in the figure are:

[0019] 1. Base; 2. Limit roller; 3. Second limit plate; 4. Support leg; 5. First limit plate; 6. Support block; 7. Motor; 8. Speaker; 9. Threaded rod; 10. Moving groove; 11. First rod; 12. Second rod; 13. Slide groove; 14. Spring; 15. Contact piece; 16. Slider; 17. Contact switch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] like Figure 1-3As shown, the utility model provides a fixed-length detection mechanism for a spiral duct machine, comprising a base 1, a support leg 4 is fixedly connected to the lower end of the base 1, and the support leg 4 can support the entire device, a limiting roller 2 is fixedly connected to the upper end of the base 1, and the limiting roller 2 is used to receive the spiral duct after production, and a fixed-length detection mechanism is provided at the lower end of the base 1;

[0022] The fixed-length detection mechanism includes a support block 6 fixedly connected to the lower end of the base 1, a moving groove 10 is provided inside the support block 6, a moving mechanism is provided inside the support block 6, a first rod 11 is slidably connected inside the moving groove 10, the first rod 11 can move left and right inside the moving groove 10, a second rod 12 is rotatably connected to the right side of the first rod 11, a slide groove 13 is provided on the right side of the second rod 12, a slider 16 is slidably connected inside the slide groove 13, the slider 16 can move inside the slide groove 13, a first limiting plate 5 is fixed to the right side of the slider 16, a spring 14 is fixedly connected to the lower end of the slider 16, and a contact switch is fixedly connected to the upper end of the slide groove 13 The contact switch 17 can be powered on when it is under pressure. The prior art will not be described in detail. A contact sheet 15 is fixedly connected to the inside of the second rod 12. A speaker 8 is fixedly connected to the lower end of the support block 6 for issuing a warning sound. The speaker 8 is electrically connected to the contact switch 17. The contact sheet 15, the slider 16 and the speaker 8 are electrically connected. A second limit plate 3 is fixedly connected to the left side of the base 1. The lower right end of the movable groove 10 is arc-shaped. The width and height of the second rod 12 are the same as those of the first rod 11. The upper end of the first limit plate 5 is made of wear-resistant steel. When the spiral air duct contacts the first limit plate 5, the loss is reduced.

[0023] When the spiral duct machine manufactures the spiral duct, the spiral duct is placed by a plurality of limiting rollers 2. Under the action of the spiral duct machine's transmission, one end of the spiral duct contacts the second limiting plate 3. At this time, the moving mechanism causes the first rod 11 to move rightward, and the first rod 11 drives the second rod 12 to move. When the left side of the second rod 12 contacts the supporting block 6, the second rod 12 rotates under the action of the supporting block 6, and the second rod 12 enters the interior of the moving groove 10. At this time, the second rod 12 is in a horizontal state. When the spiral duct has a composite length, the first limiting plate 5 contacts the right side of the spiral duct, and the position of the slider 16 in the slide groove 13 does not change. When the spiral duct is short, the left side of the first limiting plate 5 The side does not contact with the spiral air duct, at this time, the slider 16 moves to the left side under the action of the spring 14, and applies a certain pressure to the contact switch 17, at this time, the electrically connected speaker 8 sounds an alarm, when the spiral air duct is too long, at this time, the slider 16 moves to the right side inside the slide groove 13, and the lower end of the slider 16 contacts with the metal sheet, thereby making the electrically connected speaker 8 sound, when the spiral air duct is detected, the speaker 8 will not make a sound only when the spiral air duct meets the length. At the same time, the second rod 12 in the initial state is in a vertical downward state, which will not affect the normal operation of the spiral duct machine. When detecting the length, the speaker 8 can also be used to know whether the spiral air duct is qualified, thereby improving the detection effect of the spiral air duct.

[0024] like Figure 2 As shown, the moving mechanism includes a motor 7 fixedly connected to the right side of the support block 6, and the output end of the motor 7 is fixedly connected to a threaded rod 9, and the rod wall of the threaded rod 9 is connected to the internal thread of the first rod member 11. When the motor 7 is energized, the output end of the motor 7 drives the threaded rod 9 to rotate, and the rotation of the threaded rod 9 causes the first rod member 11 to move inside the movable groove 10.

[0025] Working principle: when the spiral duct machine manufactures the spiral duct, the spiral duct is placed by a plurality of limit rollers 2. Under the action of the spiral duct machine, one end of the spiral duct contacts the second limit plate 3. At this time, the moving mechanism moves the first rod 11 to the right, and the first rod 11 drives the second rod 12 to move. When the left side of the second rod 12 contacts the support block 6, the second rod 12 rotates under the action of the support block 6, and the second rod 12 enters the interior of the moving groove 10. At this time, the second rod 12 is in a horizontal state. When the spiral duct has a composite length, the first limit plate 5 contacts the right side of the spiral duct, and the position of the slider 16 in the slide groove 13 will not change. When the spiral duct is short, the first limit plate 5 is not in contact with the spiral air duct. At this time, the slider 16 moves to the left under the action of the spring 14, and applies a certain pressure to the contact switch 17, so that the electrically connected speaker 8 sounds an alarm. When the spiral air duct is too long, the slider 16 moves to the right inside the slide groove 13, and the lower end of the slider 16 contacts the metal sheet, thereby making the electrically connected speaker 8 sound. When the spiral air duct is detected, the speaker 8 will not make a sound only when the spiral air duct meets the length. At the same time, the second rod 12 in the initial state is in a vertical downward state, which will not affect the normal operation of the spiral duct machine. When detecting the length, it can also be known through the speaker 8 whether the spiral air duct is qualified, thereby improving the detection effect of the spiral air duct.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0027] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A fixed-length detection mechanism for a spiral duct machine, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a limiting roller (2), and the lower end of the base (1) is provided with a fixed-length detection mechanism; The fixed-length detection mechanism comprises a support block (6) fixedly connected to the lower end of the base (1), a movable groove (10) is provided inside the support block (6), a movable mechanism is provided inside the support block (6), a first rod (11) is slidably connected inside the movable groove (10), a second rod (12) is rotatably connected to the right side of the first rod (11), a sliding groove (13) is provided on the right side of the second rod (12), a sliding block (16) is slidably connected inside the sliding groove (13), and the right side of the sliding block (16) is fixedly connected to the inside of the sliding groove (13). A first limit plate (5) is fixed, the lower end of the slider (16) is fixedly connected to a spring (14), the upper end of the slide groove (13) is fixedly connected to a contact switch (17), the interior of the second rod (12) is fixedly connected to a contact sheet (15), the lower end of the support block (6) is fixedly connected to a speaker (8), the speaker (8) is electrically connected to the contact switch (17), the contact sheet (15), the slider (16) and the speaker (8) are electrically connected, and the left side of the base (1) is fixedly connected to a second limit plate (3).

2. A fixed-length detection mechanism for a spiral duct machine according to claim 1, characterized in that: The moving mechanism comprises a motor (7) fixedly connected to the right side of the support block (6); an output end of the motor (7) is fixedly connected to a threaded rod (9); a rod wall of the threaded rod (9) is threadably connected to an inner portion of the first rod member (11).

3. The fixed-length detection mechanism of a spiral duct machine according to claim 1, characterized in that: The lower end of the base (1) is fixedly connected to a supporting leg (4).

4. The fixed-length detection mechanism of a spiral duct machine according to claim 1, characterized in that: The lower right end of the movable groove (10) is arranged in an arc shape.

5. The fixed-length detection mechanism of a spiral duct machine according to claim 1, characterized in that: The width and height of the second rod (12) are the same as the width and height of the first rod (11).

6. The fixed-length detection mechanism for a spiral duct machine according to claim 1, characterized in that: The upper end of the first limiting plate (5) is made of wear-resistant steel.

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