Electric drawing instrument convenient to adjust

Abstract

The utility model discloses an electric drawing instrument convenient to adjust, which comprises a drawing instrument body, and adjusting support structures are arranged on two sides of the drawing instrument body. The adjusting and supporting structure comprises two supporting frames, six guide frames, two extension frames, two positioning grooves, two positioning racks, two mounting plates, two threaded sleeves and two positioning assemblies. The utility model relates to the technical field of drawing instruments, in particular to an adjustable supporting structure, which is used for adjusting the positions of two extension frames in a plurality of guide frames according to different test requirements in use, through the contact of the extension frames and the ground and the matching of positioning components and positioning racks, the overall height of the two extension frames is adjusted, and the test accuracy is improved. And the overall application range of the drawing instrument is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing instruments, in particular to an electric drawing instrument which is easy to adjust. Background Art

[0002] A pull-off tester is a device used to test the tensile properties of materials. It is also one of the commonly used instruments in the study of mechanical properties of materials. In the construction field, the bonding strength of exterior tiles, insulation materials, paints, coatings, etc. all require on-site testing using a pull-off tester.

[0003] However, most current pulling instruments are fixedly installed during use, and the overall height of the pulling instrument cannot be quickly adjusted according to different testing requirements during use, which results in certain testing limitations. In view of this, there may already be technical means to solve the above problems in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric drawing instrument that is easy to adjust, comprising a drawing instrument body, with adjustment support structures provided on both sides of the drawing instrument body;

[0005] The adjustment support structure includes: two support frames, six guide frames, two extension frames, two positioning slots, two positioning racks, two mounting plates, two threaded sleeves and two positioning assemblies;

[0006] The two support frames are respectively installed on both sides of the pulling instrument body by bolts, the six guide frames are respectively installed on the outside of the two support frames, the two extension frames are respectively movably embedded in the six guide frames, the two positioning grooves are respectively opened on one side of the two extension frames, the two positioning racks are respectively installed in the two positioning grooves, the two ends of the two mounting plates are respectively connected to one side of four of the guide frames, the two threaded sleeves are respectively embedded in the two mounting plates, and the two positioning assemblies are respectively movably embedded in the two threaded sleeves.

[0007] Preferably, the two positioning assemblies each include: a positioning screw, a mounting hole, a limiting hole, a positioning cone, and a spring;

[0008] The positioning screw is movably embedded in the threaded sleeve, the mounting hole is opened in the positioning screw, the limiting hole is opened at one end of the positioning screw and is connected to the mounting hole, the positioning cone is movably embedded in the limiting hole, one end of the spring is connected to the inner wall of the mounting hole, and the other end is connected to the positioning cone.

[0009] Preferably, the mounting plate is mounted on one side of the two guide frames by bolts.

[0010] Preferably, an operating nut is installed at one end of the positioning screw.

[0011] Preferably, sliding grooves are machined on the inner walls on both sides of the guide frame.

[0012] Beneficial effects

[0013] The present invention provides an electric pulling instrument that is easy to adjust and has the following beneficial effects: the adjustment support structure adopted in this case can adjust the positions of the two extension frames in multiple guide frames according to different testing requirements during use, through the contact between the extension frames and the ground, and through the provided positioning components and the positioning rack, the overall height of the two extension frames can be adjusted to ensure the overall applicability of the pulling instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of an easily adjustable electric drawing instrument described in the utility model.

[0015] Figure 2 This is a schematic side sectional structural diagram of an easily adjustable electric drawing instrument described in the utility model.

[0016] Figure 3 This is a schematic diagram of the enlarged structure of position "A" of the electric drawing instrument that is easy to adjust described in the utility model.

[0017] In the figure: 1. Puller body, 2. Support frame, 3. Guide frame, 4. Extension frame, 5. Positioning slot, 6. Positioning rack, 7. Mounting plate, 8. Threaded sleeve, 9. Positioning screw, 10. Mounting hole, 11. Limit hole, 12. Positioning cone, 13. Spring, 14. Operating nut. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0019] Example: See Figure 1-3 , an electric drawing instrument that is easy to adjust, comprising a drawing instrument body 1, with adjustment support structures provided on both sides of the drawing instrument body 1;

[0020] The adjustment support structure includes: two support frames 2, six guide frames 3, two extension frames 4, two positioning slots 5, two positioning racks 6, two mounting plates 7, two threaded sleeves 8 and two positioning assemblies;

[0021] The two support frames 2 are respectively installed on both sides of the pulling instrument body 1 by bolts, the six guide frames 3 are respectively installed on the outside of the two support frames 2, the two extension frames 4 are respectively movably embedded in the six guide frames 3, the two positioning grooves 5 are respectively opened on one side of the two extension frames 4, the two positioning racks 6 are respectively installed in the two positioning grooves 5, the two ends of the two mounting plates 7 are respectively connected to one side of four of the guide frames 3, the two threaded sleeves 8 are respectively embedded in the two mounting plates 7, and the two positioning components are respectively movably embedded in the two threaded sleeves 8.

[0022] During use, the staff first places the puller body 1 in the specified position through the two support frames 2, and then screws the positioning component in the threaded sleeve 8 according to different test requirements to separate the positioning component from the positioning rack 6 in the positioning groove 5, so that the position of the extension frame 4 in the guide frame 3 can be adjusted, and the support of the puller body 1 is adjusted by making the bottom end of the extension frame 4 contact the ground. When the adjustment is completed, screw the positioning component in the threaded sleeve 8 to move the positioning component to one side in the mounting plate 7 until the positioning component engages with the positioning rack 6 in the positioning groove 5, and fix the overall height of the extension frame 4, so that the height adjustment of the puller body 1 can be achieved.

[0023] In the specific implementation process, both positioning components include: a positioning screw 9, a mounting hole 10, a limiting hole 11, a positioning cone 12 and a spring 13;

[0024] The positioning screw 9 is movably embedded in the threaded sleeve 8, the mounting hole 10 is opened in the positioning screw 9, the limiting hole 11 is opened at one end of the positioning screw 9 and is connected to the mounting hole 10, the positioning cone 12 is movably embedded in the limiting hole 11, one end of the spring 13 is connected to the inner wall of the mounting hole 10, and the other end is connected to the positioning cone 12.

[0025] When fixing the height of the extension frame 4, screw the positioning screw 9 in the threaded sleeve 8, and first push the positioning cone 12 to contact the positioning rack 6 through the spring 13 in the mounting hole 10 to preliminarily position the extension frame 4, and then continue to screw the positioning screw 9 until the limiting hole 11 at one end of the positioning screw 9 fits into one side of the positioning cone 12, so that one end of the positioning cone 12 fits tightly into the positioning rack 6, and the extension frame 4 is fixed. When adjusting the extension frame 4, screw the positioning screw 9 in the opposite direction to separate the inner wall of the limiting hole 11 at one end of the positioning screw 9 from the positioning cone 12. Under the action of the spring 13, when adjusting the extension frame 4, the positioning cone 12 moves repeatedly in the limiting hole 11, and while adjusting the extension frame 4, the overall height of the extension frame 4 is preliminarily positioned.

[0026] During the specific implementation process, the mounting plate 7 is mounted on one side of the two guide frames 3 by means of bolts.

[0027] In the specific implementation process, an operating nut 14 is installed at one end of the positioning screw 9.

[0028] In the specific implementation process, sliding grooves are processed on the inner walls of both sides of the guide frame 3.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric drawing instrument that is easy to adjust, comprising a drawing instrument body (1), characterized in that: Adjustment support structures are provided on both sides of the pulling instrument body (1); The adjustment support structure comprises: two support frames (2), six guide frames (3), two extension frames (4), two positioning slots (5), two positioning racks (6), two mounting plates (7), two threaded sleeves (8) and two positioning assemblies; The two support frames (2) are respectively mounted on both sides of the pulling instrument body (1) by bolts, the six guide frames (3) are respectively mounted on the outsides of the two support frames (2), the two extension frames (4) are respectively movably embedded in the six guide frames (3), the two positioning grooves (5) are respectively opened on one side of the two extension frames (4), the two positioning racks (6) are respectively mounted in the two positioning grooves (5), the two ends of the two mounting plates (7) are respectively connected to one side of four of the guide frames (3), the two threaded sleeves (8) are respectively embedded in the two mounting plates (7), and the two positioning assemblies are respectively movably embedded in the two threaded sleeves (8).

2. The adjustable electric drawing instrument according to claim 1, characterized in that: The two positioning assemblies each comprise: a positioning screw (9), a mounting hole (10), a limiting hole (11), a positioning cone (12) and a spring (13); The positioning screw (9) is movably embedded in the threaded sleeve (8), the mounting hole (10) is opened in the positioning screw (9), the limiting hole (11) is opened at one end of the positioning screw (9) and is connected to the mounting hole (10), the positioning cone (12) is movably embedded in the limiting hole (11), one end of the spring (13) is connected to the inner wall of the mounting hole (10), and the other end is connected to the positioning cone (12).

3. The adjustable electric drawing instrument according to claim 1, characterized in that: The mounting plate (7) is mounted on one side of the two guide frames (3) by means of bolts.

4. The adjustable electric drawing instrument according to claim 2, characterized in that: An operating nut (14) is installed at one end of the positioning screw (9).

5. The easily adjustable electric drawing instrument according to claim 1, characterized in that: Sliding grooves are machined on the inner walls of both sides of the guide frame (3).

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