Upper and lower bolt type steel door

Abstract

The utility model discloses an up-down bolt type steel door, which relates to the technical field of steel doors, and comprises a door frame, the left ends of the upper and lower sides of the inner wall of the door frame are rotatably connected with a steel door II, and the right ends of the upper and lower sides of the inner wall of the door frame are rotatably connected with a steel door I; door handles are fixedly connected to the front side positions of the first steel door and the second steel door, a bolt mechanism is fixedly connected to the left end position of the front side of the first steel door, and a fixing mechanism is fixedly connected to the upper end position of the front side of the second steel door. According to the up-and-down bolt type steel door, the inserting rod can move up and down through the arrangement of the inserting rod and the cooperation of the first spring with certain elasticity, then the inserting rod smoothly slides into the inserting sleeve, the first steel door body and the second steel door body are fixed, fixing is more convenient through the up-and-down bolt mode, practicability is higher, and through the arrangement of the sliding plate, the safety of the door is improved. And a spring II with certain elasticity is matched, so that the sliding plate can smoothly enter the limiting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of steel doors, in particular to an upper and lower latch type steel door. Background Art

[0002] The appearance of steel doors on the market is very similar to that of security doors. In terms of security performance, standard security doors have thick steel plates, strong impact resistance, and implement national mandatory standards; while steel doors implement the company's own standards. Steel doors are widely used indoors and outdoors in various buildings. The latch generally consists of two parts. One is a rod fixed on the door surface that can move horizontally left and right, and the other is a ring fixed on the door frame. The two are at the same horizontal position and correspond to each other.

[0003] For example, the Chinese patent with publication number CN209742637U discloses a steel door structure, including a steel door body and a door frame connecting the steel door body to a wall panel, the steel door body and the door frame are connected by hinges provided at the top and bottom, and a sealing strip is provided between the two, the door frame and the wall panel are connected by bolts and a central folding rib, the steel door body includes door panels on both sides, a filling layer is provided between the door panels, and a window composed of two tempered glasses through a 1mm thick double-sided adhesive is provided on the door panel. The utility model has good sealing performance, a good observation field of view, and a stable connection between the steel door body and the wall panel, good use effect and long service life.

[0004] The existing technology has the following problems:

[0005] Existing steel doors are usually fixed by door locks, but the door locks are prone to internal damage, which makes the steel doors unable to be opened and inconvenient to use. At the same time, the existing fixing methods of steel doors are too simple and cannot stably fix the steel doors, making the steel doors easy to shake, posing certain safety hazards. Utility Model Content

[0006] The utility model provides an upper and lower latch type steel door to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A steel door with upper and lower latches comprises a door frame, wherein a steel door 2 is rotatably connected to the left ends of the upper and lower inner walls of the door frame, a steel door 1 is rotatably connected to the right ends of the upper and lower inner walls of the door frame, door handles are fixedly connected to the front sides of the steel door 1 and the steel door 2, a latch mechanism is fixedly connected to the left end of the front side of the steel door 1, a fixing mechanism is fixedly connected to the upper end of the front side of the steel door 2, and protective pads are fixedly connected to the upper and lower sides of the inner walls of the door frame.

[0009] Preferably: the latch mechanism includes connecting plate 1 and connecting plate 2, the rear side of connecting plate 1 is fixedly connected to the right end position of the front side of steel door 2, the rear side of connecting plate 2 is fixedly connected to the left end position of the front side of steel door 1, the front side of connecting plate 1 is fixedly connected to a limiting sleeve, the upper end position of the limiting sleeve is movably connected to a plug rod, the lower end position of the front side of connecting plate 2 is fixedly connected to a plug sleeve, the bottom of the plug rod is fixedly connected to a limiting circular plate, the outer wall of the plug rod is movably connected to a spring 1, and the middle position of the outer surface of the right part of the plug rod is fixedly connected to a baffle.

[0010] Preferably, the left and right sides of the limiting circular plate are fixedly connected to the limiting blocks, and the left and right sides of the inner wall of the limiting sleeve are provided with sliding grooves, and the width of the sliding grooves is consistent with the width of the limiting blocks.

[0011] Preferably, the lower end of the right part of the plug rod is spherical and block-shaped, and the outer surface diameter of the plug rod is consistent with the inner wall diameter of the plug sleeve.

[0012] Preferably, the outer surface diameter of the limiting circular plate is consistent with the inner wall diameter of the limiting sleeve, and the outer ring diameter of the spring 1 is slightly smaller than the outer surface diameter of the limiting circular plate.

[0013] Preferably: the fixing mechanism includes a sliding sleeve, the rear side of the sliding sleeve is fixedly connected to the upper end position of the front side of the second steel door, the right end of the sliding sleeve is movably connected with a slide plate, the left end of the slide plate is fixedly connected to a limiting plate, the upper and lower sides of the left end of the limiting plate are fixedly connected with spring 2, and the left end of the spring 2 is fixedly connected to the left side of the inner wall of the sliding sleeve.

[0014] Preferably, the outer ring diameter of the second spring is slightly smaller than the inner wall width of the sleeve, and the width and height of the limit plate are consistent with the width and height of the inner wall of the sleeve.

[0015] Preferably, a limiting frame is fixedly connected to the upper end of a front side of the steel door, and the inner wall thickness of the limiting frame is slightly greater than the thickness of the slide plate.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides an upper and lower latch type steel door. By setting a plug rod and cooperating with a spring with a certain elasticity, the plug rod can move up and down, and then smoothly slide into the plug sleeve to complete the fixation of steel door one and steel door two. The upper and lower latch method makes the fixation more convenient and more practical.

[0018] 2. The utility model provides an upper and lower latch type steel door. By setting a slide plate, in cooperation with a spring 2 with a certain elasticity, the slide plate can smoothly enter the limiting frame, thereby stabilizing the steel door 1 and the steel door 2 to a certain extent, ensuring that the steel door 1 and the steel door 2 will not shake excessively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the latch mechanism structure of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the latch mechanism of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0024] Figure 6 It is a schematic cross-sectional structure diagram of the fixing mechanism of the utility model.

[0025] In the figure: 1. door frame; 2. steel door one; 3. protective pad; 4. door handle; 5. latch mechanism; 6. fixing mechanism; 7. steel door two; 50. limit block; 51. connecting plate one; 52. connecting plate two; 53. plug rod; 54. limit sleeve; 55. baffle; 56. plug sleeve; 57. spring one; 58. slide groove; 59. limit circular plate; 61. slide sleeve; 62. slide plate; 63. limit frame; 64. limit plate; 65. spring two. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1 As shown, an upper and lower latch type steel door includes a door frame 1, a steel door 2 7 is rotatably connected to the left ends of the upper and lower sides of the inner wall of the door frame 1, a steel door 1 2 is rotatably connected to the right ends of the upper and lower sides of the inner wall of the door frame 1, a door handle 4 is fixedly connected to the front sides of the steel door 1 2 and the steel door 2 7, a latch mechanism 5 is fixedly connected to the left end of the front side of the steel door 1 2, a fixing mechanism 6 is fixedly connected to the upper end of the front side of the steel door 2 7, and a protective pad 3 is fixedly connected to the upper and lower sides of the inner wall of the door frame 1.

[0028] It should be noted that, by providing the insertion rod 53, in cooperation with the spring 1 57 having a certain elasticity, the insertion rod 53 can move up and down, and then smoothly slide into the insertion sleeve 56, thereby completing the fixation of the steel door 1 2 and the steel door 2 7. The upper and lower latch method makes the fixation more convenient and more practical. By providing the slide plate 62, in cooperation with the spring 2 65 having a certain elasticity, the slide plate 62 can smoothly enter the limiting frame 63, thereby stabilizing the steel door 1 2 and the steel door 2 7 to a certain extent, ensuring that the steel door 1 2 and the steel door 2 7 will not shake too much.

[0029] like Figure 2-Figure 4 As shown, the latch mechanism 5 includes a connecting plate 1 51 and a connecting plate 2 52, the rear side of the connecting plate 1 51 is fixedly connected to the right end position of the front side of the steel door 2 7, the rear side of the connecting plate 2 52 is fixedly connected to the left end position of the front side of the steel door 2, the front side position of the connecting plate 1 51 is fixedly connected to a limiting sleeve 54, the upper end position of the limiting sleeve 54 is movably connected to an insertion rod 53, the lower end position of the front side of the connecting plate 2 52 is fixedly connected to an insertion sleeve 56, the bottom of the insertion rod 53 is fixedly connected to a limiting circular plate 59, the outer wall of the insertion rod 53 is movably connected to a spring 1 57, and the middle position of the outer surface of the right part of the insertion rod 53 is fixedly connected to a baffle 55.

[0030] It should be noted that, first, the steel door 2 7 is rotated counterclockwise to make the protective pad 3 and the door frame 1 in a parallel position, and the insertion rod 53 is pulled upward, thereby driving the limiting circular plate 59 to move upward along the inside of the limiting sleeve 54, and then driving the two limiting blocks 50 to move upward along the slide groove 58. The width of the limiting blocks 50 and the slide groove 58 is consistent, thereby ensuring the smooth movement of the insertion rod 53, and the set spring 1 57 is smoothly compressed under the movement of the limiting circular plate 59. At this time, the steel door 2 7 is rotated counterclockwise. Move steel door 1 2 to align steel door 1 2 with steel door 2 7. At this time, release the plug rod 53. Under the action of spring 1 57, the right part of the plug rod 53 slides into the plug sleeve 56. The lower end of the right part of the plug rod 53 is spherical, which ensures the smooth sliding of the plug rod 53. At the same time, under the restriction of the baffle 55, the limiting circular plate 59 will not separate from the limiting sleeve 54, thereby fixing steel door 1 2 and steel door 2 7 to a certain extent. The upper and lower pins make the fixation more convenient and more practical.

[0031] like Figure 3 , Figure 4 As shown, the left and right sides of the limiting circular plate 59 are fixedly connected to the limiting block 50 , and the left and right sides of the inner wall of the limiting sleeve 54 are provided with sliding grooves 58 , and the width of the sliding grooves 58 is consistent with the width of the limiting block 50 .

[0032] It should be noted that the two limit blocks 50 move upward along the slide groove 58 , and the widths of the limit blocks 50 and the slide groove 58 are consistent, thereby ensuring the smooth movement of the insertion rod 53 .

[0033] like Figure 2 , Figure 3 As shown, the lower end of the right part of the insertion rod 53 is spherical, and the outer surface diameter of the insertion rod 53 is consistent with the inner wall diameter of the insertion sleeve 56.

[0034] It should be noted that the lower end of the right part of the insertion rod 53 is spherical, which ensures the smooth sliding of the insertion rod 53 . At the same time, under the restriction of the baffle 55 , the limiting circular plate 59 will not separate from the limiting sleeve 54 .

[0035] like Figure 2 , Figure 3 As shown, the outer surface diameter of the limiting circular plate 59 is consistent with the inner wall diameter of the limiting sleeve 54 , and the outer ring diameter of the spring 1 57 is slightly smaller than the outer surface diameter of the limiting circular plate 59 .

[0036] It should be noted that the spring 1 57 is smoothly compressed under the movement of the limiting circular plate 59.

[0037] like Figure 4 , Figure 5 As shown, the fixing mechanism 6 includes a sliding sleeve 61, the rear side of the sliding sleeve 61 is fixedly connected to the upper end position of the front side of the steel door 2 7, the right end of the sliding sleeve 61 is movably connected to a slide plate 62, the left end of the slide plate 62 is fixedly connected to a limiting plate 64, the upper and lower sides of the left end of the limiting plate 64 are fixedly connected to a spring 2 65, and the left end of the spring 2 65 is fixedly connected to the left side of the inner wall of the sliding sleeve 61.

[0038] It should be noted that, the slide plate 62 is pushed toward the left end, so that the limit plate 64 moves along the inside of the sliding sleeve 61. The limit plate 64 is arranged to fit well with the inside of the sliding sleeve 61, thereby ensuring the smooth movement of the slide plate 62, thereby compressing the spring 2 65. At this time, the steel door 1 2 is rotated clockwise to align the steel door 1 2 with the steel door 2 7, and then the slide plate 62 is released. Under the action of the spring 2 65, the slide plate 62 moves to the right end. The slide plate 62 is arranged to be relatively thin, so it can smoothly enter the limit frame 63, thereby stabilizing the steel door 1 2 and the steel door 2 7 to a certain extent, ensuring that the steel door 1 2 and the steel door 2 7 will not shake too much.

[0039] like Figure 4 , Figure 5 As shown, the outer ring diameter of the second spring 65 is slightly smaller than the inner wall width of the sliding sleeve 61 , and the width and height of the limiting plate 64 are consistent with the width and height of the inner wall of the sliding sleeve 61 .

[0040] It should be noted that the limiting plate 64 moves along the inside of the sliding sleeve 61 , and the limiting plate 64 is arranged to fit closely with the inside of the sliding sleeve 61 , thereby ensuring the smooth movement of the sliding plate 62 .

[0041] like Figure 5As shown, a limiting frame 63 is fixedly connected to the upper end of the front side of the steel door 2, and the inner wall thickness of the limiting frame 63 is slightly greater than the thickness of the slide plate 62.

[0042] It should be noted that the slide plate 62 is relatively thin, so it can smoothly enter the limiting frame 63, thereby stabilizing the steel door 1 2 and the steel door 2 7 to a certain extent.

[0043] The working principle of the utility model is as follows: first, rotate the steel door 2 7 counterclockwise to make the protective pad 3 and the door frame 1 in a parallel position, and then pull the insertion rod 53 upwards, thereby driving the limiting circular plate 59 to move upward along the inside of the limiting sleeve 54, and then driving the two limiting blocks 50 to move upward along the slide groove 58. The width of the limiting blocks 50 and the slide groove 58 are consistent, thereby ensuring the smooth movement of the insertion rod 53, and the set spring 1 57 is smoothly compressed under the movement of the limiting circular plate 59, and then pushes the slide plate 62 to the left end, thereby making the limiting plate 64 move along the inside of the slide sleeve 61. The set limiting plate 64 is more in line with the inside of the slide sleeve 61, thereby ensuring the smooth movement of the slide plate 62, thereby compressing the spring 2 65, and then rotating the steel door 2 clockwise. The steel door 1 2 is aligned with the steel door 2 7. At this time, the plug rod 53 is released. Under the action of the spring 1 57, the right part of the plug rod 53 slides into the plug sleeve 56. The lower end of the right part of the plug rod 53 is spherical, which ensures the smooth sliding of the plug rod 53. At the same time, under the restriction of the baffle 55, the limiting circular plate 59 will not separate from the limiting sleeve 54, thereby fixing the steel door 1 2 and the steel door 2 7 to a certain extent. The upper and lower latches make the fixation more convenient and more practical. Then, the slide plate 62 is released. Under the action of the spring 2 65, the slide plate 62 moves to the right end. The slide plate 62 is set to be relatively thin, so it can smoothly enter the limiting frame 63, thereby stabilizing the steel door 1 2 and the steel door 2 7 to a certain extent, ensuring that the steel door 1 2 and the steel door 2 7 will not shake too much.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel door with upper and lower latches, comprising a door frame (1), characterized in that: The left ends of the upper and lower sides of the inner wall of the door frame (1) are rotatably connected to a steel door 2 (7), the right ends of the upper and lower sides of the inner wall of the door frame (1) are rotatably connected to a steel door 1 (2), the front sides of the steel door 1 (2) and the steel door 2 (7) are both fixedly connected to a door handle (4), the left end of the front side of the steel door 1 (2) is fixedly connected to a latch mechanism (5), the upper end of the front side of the steel door 2 (7) is fixedly connected to a fixing mechanism (6), and the upper and lower sides of the inner wall of the door frame (1) are both fixedly connected to a protective pad (3).

2. The upper and lower latch type steel door according to claim 1, characterized in that: The latch mechanism (5) comprises a connecting plate 1 (51) and a connecting plate 2 (52); the rear side of the connecting plate 1 (51) is fixedly connected to the right end position of the front side of the steel door 2 (7); the rear side of the connecting plate 2 (52) is fixedly connected to the left end position of the front side of the steel door 1 (2); the front side of the connecting plate 1 (51) is fixedly connected to a limiting sleeve (54); the upper end position of the limiting sleeve (54) is movably connected to an insertion rod (53); the lower end position of the front side of the connecting plate 2 (52) is fixedly connected to an insertion sleeve (56); the bottom of the insertion rod (53) is fixedly connected to a limiting circular plate (59); the outer wall of the insertion rod (53) is movably connected to a spring 1 (57); and the middle position of the outer surface of the right part of the insertion rod (53) is fixedly connected to a baffle (55).

3. The upper and lower latch type steel door according to claim 2, characterized in that: The left and right sides of the limiting circular plate (59) are fixedly connected to the limiting block (50), and the left and right sides of the inner wall of the limiting sleeve (54) are provided with sliding grooves (58), and the width of the sliding grooves (58) is consistent with the width of the limiting block (50).

4. The upper and lower latch type steel door according to claim 2, characterized in that: The lower end of the right part of the insertion rod (53) is spherical and block-shaped, and the outer surface diameter of the insertion rod (53) is consistent with the inner wall diameter of the insertion sleeve (56).

5. The upper and lower latch type steel door according to claim 2, characterized in that: The outer surface diameter of the limiting circular plate (59) is consistent with the inner wall diameter of the limiting sleeve (54), and the outer ring diameter of the spring 1 (57) is slightly smaller than the outer surface diameter of the limiting circular plate (59).

6. The upper and lower latch type steel door according to claim 1, characterized in that: The fixing mechanism (6) comprises a sliding sleeve (61), the rear side of the sliding sleeve (61) is fixedly connected to the upper end position of the front side of the second steel door (7), the right end of the sliding sleeve (61) is movably connected to a slide plate (62), the left end of the slide plate (62) is fixedly connected to a limiting plate (64), the upper and lower sides of the left end of the limiting plate (64) are fixedly connected to a second spring (65), and the left end of the second spring (65) is fixedly connected to the left side of the inner wall of the sliding sleeve (61).

7. The upper and lower latch type steel door according to claim 6, characterized in that: The outer ring diameter of the second spring (65) is slightly smaller than the inner wall width of the sliding sleeve (61), and the width and height of the limiting plate (64) are consistent with the width and height of the inner wall of the sliding sleeve (61).

8. The upper and lower latch type steel door according to claim 6, characterized in that: A limiting frame (63) is fixedly connected to the upper end of the front side of the steel door (2), and the inner wall thickness of the limiting frame (63) is slightly greater than the thickness of the slide plate (62).

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