Positioner for cutting air port at tail end of air pipe

Abstract

The utility model discloses a positioner for cutting an air port at the tail end of an air pipe, which belongs to the technical field of air pipe construction, and adopts the technical scheme that the positioner comprises a rectangular frame consisting of two transverse rods and two longitudinal rods, and scale marks are arranged on the upper end surfaces of the transverse rods and the longitudinal rods; limiting blocks are arranged at the two ends of the transverse rod, longitudinal rod sliding ways penetrating through the front side wall and the rear side wall are arranged on the transverse rod, and the two longitudinal rods are arranged in the longitudinal rod sliding ways in a sliding mode. Cutting knife slide ways penetrating through the upper side wall and the lower side wall are arranged on the transverse rod and the longitudinal rod; a sliding block close to any limiting block is arranged on the transverse rod in a sliding mode, and a screw abutting against the sliding block is arranged on the limiting block in a threaded connection mode. The locking blocks are arranged in the cutting machine sliding parts on the transverse rod and the longitudinal rod, a fixing plate is arranged at the lower ends of the locking blocks and located below the transverse rod, and a locking disc is arranged at the upper ends of the locking blocks and located above the transverse rod in a threaded connection mode. The positioner for cutting the air port at the tail end of the air pipe has the advantage that the positioner for cutting the air port at the tail end of the air pipe is provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of air duct construction, and particularly relates to a positioner for cutting the end air outlet of an air duct. Background Art

[0002] During the construction process of a project, air outlets need to be provided at the end of the air duct system. Therefore, it is necessary to cut holes on the ventilation duct according to the size required by the drawing for installing the end air outlet. Currently, the common method is to mark the pre-designed size on the ventilation duct and then cut it manually. However, during the manual cutting process, it is very easy to have uneven cutting sections and inaccurate sizes, which will lead to difficulties in the installation process of the air outlet. Content of the Utility Model

[0003] The purpose of the utility model is to provide a positioner for cutting the end air outlet of an air duct.

[0004] The utility model is achieved by the following measures: A positioner for cutting the end air outlet of an air duct, characterized in that it includes a rectangular frame composed of two symmetrically arranged cross bars and two longitudinal bars. Scale lines are provided on the upper end surfaces of the cross bars and the longitudinal bars.

[0005] Limit blocks are provided at both ends of the cross bar. A longitudinal bar slideway penetrating the front and rear side walls is provided on the cross bar. The longitudinal bar slideway is located between the two limit blocks. The two longitudinal bars are slidably arranged in the longitudinal bar slideway. Cutting knife slideways penetrating the upper and lower side walls are provided on both the cross bar and the longitudinal bar. The cutting knife slideways are located between the two limit blocks.

[0006] A slider close to any one of the limit blocks is slidably arranged on the cross bar, and a screw abutted against the slider is threadedly connected to this limit block.

[0007] It further includes a locking block slidably arranged in a cutting machine on the cross bar and the longitudinal bar. A fixing plate is provided at the lower end of the locking block and below the cross bar. A locking disc is threadedly connected to the upper end of the locking block and above the cross bar. A rotating handle is fixedly arranged on the locking disc.

[0008] Furthermore, bull's-eye bearings are fixedly arranged below the fixing plates. When adjusting the positions of the cross bar and the longitudinal bar, the spheres of the bull's-eye bearings can contact the air duct, reducing friction and facilitating the movement of the cross bar and the longitudinal bar.

[0009] Furthermore, anti-slip protrusions are provided on the contact surfaces of the two limit blocks with the air duct, which can strengthen the friction with the air duct and improve the fixing effect.

[0010] Working Principle:

[0011] Press the inner wall of the limit block without screws against one outer wall of the air duct, with the slider located outside the opposite outer wall. Loosen the locking disc. Then, according to the pre-designed dimensions, adjust the distance between the two cross bars, and the distance value can be obtained by reading the scale lines on the vertical bar. After adjustment, turn the screw so that the inner end of the screw presses against the slider until the slider is fixed on the outer wall of the air duct, achieving fixation through the screw and friction. Finally, adjust the distance between the two vertical bars, and the distance value can be obtained by reading the scale lines on the cross bar. After adjustment, tighten the locking disc to fix the vertical bar.

[0012] Pass the cutting blade of the cutting machine through the cutting blade slideway and make it contact the outer wall of the air duct. Then move along the four cutting blade slideways respectively to cut the air duct, and finally the required air outlet can be cut out.

[0013] The beneficial effects brought by the technical solution provided by the embodiment of the present utility model are: a positioning device for cutting the air outlet at the end of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the following listed drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0016] Figure 2 is Figure 1 the partial enlarged view at A in

[0017] Figure 3 For Figure 1 the overall structural schematic diagram with a different angle;

[0018] Figure 4 is Figure 3 the partial enlarged view at B in

[0019] Figure 5 is the structural schematic diagram of some cross bars in the embodiment of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows: 1, cross bar; 2, vertical bar; 3, limit block; 4, cutting blade slideway; 5, slider; 6, screw; 7, locking block; 8, bull's eye bearing; 101, vertical bar slideway; 701, fixing plate; 702, locking disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments. Of course, the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] See Figure 1 - Figure 5 , a positioner for cutting the end air outlet of an air duct, characterized in that it includes a rectangular frame composed of two symmetrically arranged cross bars 1 and two longitudinal bars 2, and scale lines are provided on the upper end surfaces of the cross bars 1 and the longitudinal bars 2;

[0023] Limit blocks 3 are provided at both ends of the cross bar 1, a longitudinal bar slideway 101 penetrating the front and rear side walls is provided on the cross bar 1, the longitudinal bar slideway 101 is located between the two limit blocks 3, and the two longitudinal bars 2 are slidably arranged in the longitudinal bar slideway 101; cutting knife slideways 4 penetrating the upper and lower side walls are provided on both the cross bar 1 and the longitudinal bars 2, and the cutting knife slideways 4 are located between the two limit blocks 3;

[0024] A slider 5 close to any one of the limit blocks 3 is slidably arranged on the cross bar 1, and a screw 6 abutted against the slider 5 is threadedly connected to this limit block 3;

[0025] It further includes a locking block 7 slidably arranged in the cutting machine on the cross bar 1 and the longitudinal bars 2. A fixing plate 701 is provided at the lower end of the locking block 7 and below the cross bar 1, and a locking disc 702 is threadedly connected to the upper end of the locking block 7 and above the cross bar 1. A rotating handle is fixedly arranged on the locking disc 702.

[0026] Bull's-eye bearings 8 are fixedly arranged below the fixing plate 701. When adjusting the positions of the cross bar 1 and the longitudinal bars 2, the spheres of the bull's-eye bearings 8 can contact the air duct, reducing friction and facilitating the movement of the cross bar 1 and the longitudinal bars 2.

[0027] Anti-slip protrusions are provided on the contact surfaces of the two limit blocks 3 with the air duct, which can strengthen the friction with the air duct and improve the fixing effect.

[0028] Working principle:

[0029] Press the inner wall of the limit block 3 without the screw 6 against one outer wall of the air duct, and the slider 5 is located outside the opposite outer wall. Loosen the locking disc 702; then, according to the pre-designed size, adjust the distance between the two cross bars 1, and the distance value can be obtained by reading the scale line on the longitudinal bar 2. After the adjustment is completed, rotate the screw 6 so that the inner end of the screw 6 abuts against the slider 5 until the slider 5 is fixed on the outer wall of the air duct, and the fixation is achieved through the screw 6 and the friction force; finally, adjust the distance between the two longitudinal bars 2, and the distance value can be obtained by reading the scale line on the cross bar 1. After the adjustment is completed, tighten the locking disc 702 to fix the longitudinal bar 2.

[0030] Pass the cutting tool of the cutting machine through the cutting tool slideway 4 and contact the outer wall of the air duct, and then move along the four cutting tool slideways 4 respectively to realize the cutting of the air duct, and finally the required air outlet can be cut out.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A locator for cutting the air outlet at the end of an air duct, characterized in that: It comprises a rectangular frame composed of two symmetrically arranged horizontal bars and two vertical bars, wherein the upper end surfaces of the horizontal bars and the vertical bars are both provided with scale lines; Both ends of the cross bar are provided with limit blocks, the cross bar is provided with a longitudinal bar slideway penetrating the front and rear side walls, the longitudinal bar slideway is located between the two limit blocks, and the two longitudinal bars are slidably arranged in the longitudinal bar slideway; the cross bar and the longitudinal bar are provided with a cutting knife slideway penetrating the upper and lower side walls, and the cutting knife slideway is located between the two limit blocks; A sliding block close to any of the limiting blocks is slidably arranged on the crossbar, and a screw that presses against the sliding block is arranged on the limiting block through a threaded connection; It also includes a locking block arranged in the cutting machine slide on the cross bar and the longitudinal bar, a fixing plate is arranged at the lower end of the locking block and below the cross bar, and a locking disk is arranged at the upper end of the locking block and above the cross bar through a threaded connection.

2. The locator for cutting the tuyere at the end of the duct according to claim 1, characterized in that: A bull's eye bearing is fixedly arranged below the fixing plate.

3. The locator for cutting the tuyere at the end of the duct according to claim 1, characterized in that: The contact surfaces between the two limit blocks and the air duct are both provided with anti-slip protrusions.

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