Positioning device for metal door frame without lower frame

Abstract

The utility model relates to the technical field of building decoration construction, in particular to a lower-frame-free metal door frame positioning device which comprises a supporting rod assembly arranged in a metal door frame, and the supporting rod assembly comprises a tubular left end joint, a tubular middle joint and a tubular right end joint which are sequentially connected in an inserted mode. The right end joint can be inserted into the middle joint in a left-right linear moving mode along the middle joint, the middle joint can be inserted into the left end joint in a left-right linear moving mode along the left end joint, and positioning structures of the middle joint and the left end joint are arranged at the left end of the right end joint and the left end of the middle joint respectively. According to the positioning device for the lower-frame-free metal door frame, the lower-frame-free metal door frame is supported for temporary positioning through the supporting rod assembly providing telescopic adjustment, and the problem that the specification in a door opening is reduced due to inward displacement of the bottom-frame-free metal door frame in installation construction is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building decoration construction, in particular to a positioning device for a metal door frame without a lower frame. Background Art

[0002] Metal doors in indoor buildings, especially in medical system sites, have no lower door frame. During the installation and construction of metal door frames without lower frames, the lower door frame is prone to shift inward, which eventually causes serious problems such as the door leaf being inflexible and not opening smoothly.

[0003] Therefore, it is necessary to develop a metal door frame positioning device without a lower frame to solve this problem. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a positioning device for a metal door frame without a lower frame. The positioning device for a metal door frame without a lower frame supports the temporary positioning of the metal door frame without a lower frame by providing a telescopically adjustable support rod assembly, thereby preventing the metal door frame without a bottom frame from shifting inward during installation and construction, causing the specification of the door opening to be reduced.

[0005] The technical solution of the utility model is as follows:

[0006] A positioning device for a metal door frame without a lower frame includes a support rod assembly arranged in the metal door frame, the support rod assembly includes a tubular left end section, a middle section and a right end section which are sequentially plugged in and connected, the right end section can be inserted in the middle section so as to be movable left and right along the middle section, the middle section can be inserted in the left end section so as to be movable left and right along the left end section, and positioning structures for the middle section and the left end section are respectively arranged at the left ends of the right end section and the middle section.

[0007] Support pieces are fixedly arranged at the left end portion of the left end section and the right end portion of the right end section respectively.

[0008] The positioning structure comprises a plurality of through holes arranged on the tube walls of the left end section and the middle section and spring positioning beads fixedly arranged at the left end portions of the middle section and the right end section and used in conjunction with the through holes.

[0009] The inner diameters of the left end section, the middle section and the right end section are 25 mm, 22 mm and 19 mm respectively.

[0010] The inner diameter lengths of the left end section, the middle section and the right end section are 700 mm.

[0011] The wall thickness of the left end section, the middle section and the right end section is 1 mm.

[0012] The diameter of the through hole is 6 mm.

[0013] The distance between two adjacent through holes is 10 mm or 20 mm.

[0014] The support sheet is a circular steel sheet with a diameter larger than that of the support rod assembly.

[0015] The support sheet is welded and fixed to the left end portion of the left end section and the right end portion of the right end section.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model discloses a positioning device for a metal door frame without a lower frame. The positioning device for a metal door frame without a lower frame supports the temporary positioning of the metal door frame without a lower frame by providing a telescopically adjustable support rod assembly, thereby preventing the metal door frame without a bottom frame from shifting inwards during installation and construction, thereby preventing the problem of reduced specifications in the door opening and improving the construction quality.

[0018] 2. The utility model discloses a positioning device for a metal door frame without a lower frame, which has a simple structure and is convenient for batch processing.

[0019] 3. The utility model discloses a metal door frame positioning device without a lower frame, which is light, economical, practical and can be recycled.

[0020] 4. The utility model discloses a metal door frame positioning device without a lower frame. The metal door frame positioning device without a lower frame is easy and convenient to construct and operate, and can improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0022] In the attached picture:

[0023] Figure 1 A three-dimensional schematic diagram of a use state of a positioning device for a metal door frame without a lower frame according to an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a metal door frame positioning device without a lower frame according to an embodiment of the utility model;

[0025] The components represented by the reference numerals in the figure are:

[0026] The utility model includes: 1. a building wall, 2. a welding point, 3. a metal door frame, 4. a support rod assembly, 41. a left end section, 42. a middle section, 43. a right end section, 44. a support sheet, 45. a through hole, and 46. a spring positioning bead. DETAILED DESCRIPTION

[0027] like Figure 1As shown, during construction, a metal door frame 3 without a lower frame is fixed on the building wall 1 , and the metal door frame 3 is fixed on the building wall 1 by welding through a plurality of welding points 2 .

[0028] In order to avoid the inward displacement of the metal door frame without bottom frame during installation and construction, resulting in the problem of reduced specifications in the door opening, a temporary positioning device is set at the lower part of the installed metal door frame 3. After the connection between the metal door frame 3 and the building wall 1 is stable, the temporary positioning device is removed. Figure 2 As shown, the positioning device for the metal door frame without a lower frame includes a support rod assembly 4 arranged in the metal door frame 3, and the support rod assembly 4 includes a tubular left end section 41, a middle section 42 and a right end section 43 which are sequentially plugged in and connected, the right end section 43 can be inserted in the middle section 42 so as to be moved linearly left and right along the middle section 42, and the middle section 42 can be inserted in the left end section 41 so as to be moved linearly left and right along the left end section 41, and positioning structures with the middle section 42 and the left end section 41 are respectively arranged at the left ends of the right end section 43 and the middle section 42.

[0029] In order to protect the metal door frame 3, support plates 44 are fixedly provided at the left end portion of the left end section 41 and the right end portion of the right end section 43 respectively; the support plate 44 is a circular steel plate with a diameter larger than that of the support rod assembly 4; the support plate 44 is welded and fixed at the left end portion of the left end section 41 and the right end portion of the right end section 43.

[0030] The positioning structure includes a plurality of through holes 45 arranged on the tube wall of the left end section 41 and the middle section 42 and a spring positioning bead 46 fixedly arranged on the left end of the middle section 42 and the right end section 43 and used in conjunction with the through holes 45 .

[0031] The inner diameters of the left end section 41, the middle section 42 and the right end section 43 are 25 mm, 22 mm and 19 mm respectively.

[0032] The inner diameter length of the left end section 41, the middle section 42 and the right end section 43 is 700 mm.

[0033] The wall thickness of the left end section 41, the middle section 42 and the right end section 43 is 1 mm.

[0034] The diameter of the through hole 45 is 6 mm; the diameter of the spring positioning bead 46 is 6 mm, and the bead of the spring positioning bead 46 protrudes 3 mm from the tube wall.

[0035] The distance between two adjacent through holes 45 is 10 mm or 20 mm.

[0036] The positioning device for a metal door frame without a lower frame supports the temporary positioning of the metal door frame without a lower frame by providing a telescopically adjustable support rod assembly, thereby preventing the metal door frame without a lower frame from shifting inwards during installation and construction, thereby preventing the specification of the door opening from being reduced.

Claims

1. A positioning device for a metal door frame without a lower frame, characterized in that: The invention comprises a support rod assembly (4) arranged in a metal door frame (3), wherein the support rod assembly (4) comprises a tubular left end section (41), a middle section (42) and a right end section (43) which are sequentially plugged and connected, wherein the right end section (43) can be plugged into the middle section (42) so as to be movable left and right along the middle section (42), and the middle section (42) can be plugged into the left end section (41) so as to be movable left and right along the left end section (41), and positioning structures for the middle section (42) and the left end section (41) are respectively arranged at the left ends of the right end section (43) and the middle section (42).

2. A positioning device for a metal door frame without a lower frame according to claim 1, characterized in that: Support plates (44) are fixedly arranged at the left end of the left end section (41) and the right end of the right end section (43), respectively.

3. A positioning device for a metal door frame without a lower frame according to claim 1 or 2, characterized in that: The positioning structure comprises a plurality of through holes (45) arranged on the tube wall of the left end section (41) and the middle section (42), and a spring positioning bead (46) fixedly arranged on the left end of the middle section (42) and the right end section (43) and used in conjunction with the through holes (45).

4. A positioning device for a metal door frame without a lower frame according to claim 3, characterized in that: The inner diameters of the left end section (41), the middle section (42) and the right end section (43) are 25 mm, 22 mm and 19 mm respectively.

5. A positioning device for a metal door frame without a lower frame according to claim 4, characterized in that: The inner diameter lengths of the left end section (41), the middle section (42) and the right end section (43) are 700 mm.

6. A positioning device for a metal door frame without a lower frame according to claim 5, characterized in that: The wall thickness of the left end section (41), the middle section (42) and the right end section (43) is 1 mm.

7. The positioning device for a metal door frame without a lower frame according to claim 5, characterized in that: The diameter of the through hole (45) is 6 mm.

8. The positioning device for a metal door frame without a lower frame according to claim 7, characterized in that: The distance between two adjacent through holes (45) is 10 mm or 20 mm.

9. The positioning device for a metal door frame without a lower frame according to claim 2, characterized in that: The support sheet (44) is a circular steel sheet having a larger diameter than the support rod assembly (4).

10. A positioning device for a metal door frame without a lower frame according to claim 2, characterized in that: The support sheet (44) is welded and fixed to the left end portion of the left end section (41) and the right end portion of the right end section (43).

Images