Rack type movable explosion door

Abstract

The utility model discloses a rack type movable explosion door which comprises a door body, a rotating gear is movably connected to the middle of the rear wall face of the door body, an upper horizontal moving rack is arranged above the rotating gear, a lower horizontal moving rack is arranged below the rotating gear, and the tooth portion of the bottom face of the upper horizontal moving rack is meshed with the rotating gear. A tooth part on the top surface of the lower horizontal moving rack is meshed with the rotating gear; a right vertical plate is fixed to the right end of the upper horizontal moving rack, a left vertical plate is fixed to the left end of the lower horizontal moving rack, and a plurality of transverse limiting columns are fixed to the outer side wall of the left vertical plate and the outer side wall of the right vertical plate. The plurality of connecting sleeve bodies can ensure the transverse horizontal state of the upper horizontal moving rack and the lower horizontal moving rack, so that the upper horizontal moving rack and the lower horizontal moving rack are basically not deformed, and normal use is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of protective door equipment, and more specifically to a rack-type movable explosion-proof door. Background technology:

[0002] In some existing civil defense works or some dangerous manufacturing environments, protective doors or explosion-proof doors are generally provided for protection. However, the locking mechanism of the existing protective doors or explosion-proof doors generally adopts a worm gear method to drive the rod body to move so that the corresponding locking column extends outward from the door body and is inserted into the corresponding lock hole of the door frame to achieve locking;

[0003] For example, an explosion-proof door with Chinese patent application number 201620131608.2 includes a door frame and a door body, the door body includes a first steel plate and a second steel plate fixedly connected to each other, the first steel plate is provided with a accommodating chamber, the accommodating chamber is provided with a gear rotatably connected to the first steel plate, a first rack arranged above the gear and meshing with the gear, a second rack arranged below the gear and meshing with the gear, the accommodating chamber is also provided with a first connecting rod vertically fixedly connected to the first rack and movable in the accommodating chamber, a second connecting rod vertically fixedly connected to the second rack and movable in the accommodating chamber, the first connecting rod and the second connecting rod are respectively arranged on both sides of the gear, the first side edge of the door body is rotatably connected to the first side edge of the door frame through a hinge, at least two first lock grooves are provided in the first side edge of the door frame, at least two second lock grooves are provided in the second side edge of the door frame, and at least two first lock cores that can be inserted into the first lock grooves are fixed on the first connecting rod. It realizes lateral movement of the first rack and the second rack by rotating the gear in the middle, so that the corresponding lock core can be inserted into the corresponding lock groove. However, due to the weight and protection requirements of the explosion-proof door, its thickness is relatively thick, and the thickness of the corresponding first rack and the second rack also needs to be thick enough to ensure its strength. However, due to its long length and the lack of an internal supporting structure, the middle parts of the first rack and the second rack will bend downward due to gravity after being placed for a long time, making it impossible for the first rack and the second rack to maintain a horizontal state. At this time, it will affect the subsequent movement of the first rack and the second rack, affecting the effect of locking and closing the door. Utility model content:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rack-type movable explosion-proof door, which is provided with a plurality of connecting sleeves that can ensure the lateral horizontal state of the upper horizontal movable rack and the lower horizontal movable rack, so that they are basically not deformed and normal use is guaranteed.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A rack-type movable explosion-proof door, comprising a door body, wherein a rotating gear is movably connected to the middle of the rear wall surface of the door body, an upper horizontal movable rack is arranged above the rotating gear, a lower horizontal movable rack is arranged below the rotating gear, a tooth portion on the bottom surface of the upper horizontal movable rack is meshed with the rotating gear, and a tooth portion on the top surface of the lower horizontal movable rack is meshed with the rotating gear;

[0007] A right vertical plate is fixed to the right end of the upper horizontally movable rack, a left vertical plate is fixed to the left end of the lower horizontally movable rack, and a plurality of transverse limiting columns are fixed to the outer side walls of the left vertical plate and the right vertical plate, the transverse limiting column on the right side is inserted into a corresponding transverse guide sleeve fixed on the right side of the rear wall surface of the door body, and the transverse limiting column on the left side is inserted into a corresponding transverse guide sleeve fixed on the left side of the rear wall surface of the door body;

[0008] The left and right sides of the upper part of the rotating gear are fixed with a laterally extending connecting sleeve, the left and right sides of the lower part of the rotating gear are fixed with a laterally extending connecting sleeve, the middle part of the lower connecting sleeve is formed with a through hole with a rectangular cross section, the lower horizontal moving rack is inserted into the through holes of the two lower connecting sleeves, and it cooperates with the through holes, the bottom surface of the through hole is fixed with a bottom wear-resistant slide, and the bottom surface of the lower horizontal moving rack is pressed against the top surface of the bottom wear-resistant slide;

[0009] A transverse through hole with a T-shaped cross section extending left and right is formed in the middle of the upper connecting sleeve body, and radial extension parts are formed on the front and rear side walls of the top of the upper horizontal movable rack. The upper horizontal movable rack is inserted into the transverse through hole and cooperates with the transverse through hole. Wear-resistant strips are fixed on the bottom surfaces of the grooves on the front and rear sides of the upper part of the transverse through hole, and the bottom surface of the radial extension part is pressed against the top surface of the corresponding wear-resistant strip.

[0010] An intermediate supporting bending part is fixed in the middle of the rear wall surface of the door body, the inner end of the rotating shaft fixed in the middle of the rotating gear is movably connected to the rear wall plate of the door body through a bearing, the outer end of the rotating shaft of the rotating gear is movably connected to the vertical plate body of the intermediate supporting bending part through a bearing, and the outer end of the rotating shaft of the rotating gear extends out of the vertical plate body of the intermediate supporting bending part and is fixed with a rotating wheel.

[0011] The outstanding effects of the utility model are:

[0012] The multiple connecting sleeves provided therein can ensure the lateral horizontal state of the upper horizontal moving rack and the lower horizontal moving rack, so that they are basically not deformed, thereby ensuring normal use.

[0013] Moreover, the lower vertical positioning screw and the upper vertical positioning screw it possesses can lock the upper horizontal moving rack and the lower horizontal moving rack to prevent them from moving. It can ensure that after the door body is closed, the transverse limit column extends into the corresponding lock groove of the door frame, and the corresponding ends of the lower vertical positioning screw and the upper vertical positioning screw are clamped into the corresponding tooth grooves of the upper horizontal moving rack and the lower horizontal moving rack, so that they will not move again, and the locking effect is good.

[0014] At the same time, the rotating gears and other components are all located on the rear wall surface of the door body, and are no longer inside the door body, making it easy to install, repair and maintain. Description of the drawings:

[0015] Figure 1 It is a partial structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of

[0017] Figure 3 It is a partial cross-sectional view of the upper connecting sleeve;

[0018] Figure 4 It is a partial cross-sectional view of the lower connecting sleeve. Specific implementation method:

[0019] For example, see Figures 1 to 4 As shown, a rack-type movable explosion-proof door includes a door body 10, an intermediate supporting bending piece 11 is fixed in the middle of the rear wall surface of the door body 10, a rotating gear 1 is inserted into the middle through groove of the intermediate supporting bending piece 11, the upper and lower parts of the rotating gear 1 extend out of the upper and lower ends of the middle through groove, the inner end of the rotating shaft fixed in the middle of the rotating gear 1 is movably connected to the rear wall plate of the door body 10 through a bearing, the outer part of the rotating shaft of the rotating gear 1 is movably connected to the vertical plate body of the intermediate supporting bending piece 11 through a bearing, and the outer end of the rotating shaft of the rotating gear 1 extends out of the vertical plate body of the intermediate supporting bending piece 11 and is fixed with a rotating wheel 6.

[0020] An upper horizontal moving rack 20 is provided above the rotating gear 1, and a lower horizontal moving rack 30 is provided below the rotating gear 1. The teeth on the bottom surface of the upper horizontal moving rack 20 mesh with the rotating gear 1, and the teeth on the top surface of the lower horizontal moving rack 30 mesh with the rotating gear 1.

[0021] A right vertical plate 21 is fixed to the right end of the upper horizontally movable rack 20, and a left vertical plate 31 is fixed to the left end of the lower horizontally movable rack 30. A plurality of transverse limiting columns 2 are fixed to the outer side walls of the left vertical plate 31 and the right vertical plate 21. The right transverse limiting column 2 is inserted into a corresponding transverse guide sleeve 3 fixed to the right side of the rear wall surface of the door body 10, and the left transverse limiting column 2 is inserted into a corresponding transverse guide sleeve 3 fixed to the left side of the rear wall surface of the door body 10.

[0022] This structure rotates the rotating wheel 6 to rotate the rotating gear 1, driving the upper horizontal movable rack 20 to move to the right and the lower horizontal movable rack 30 to move to the left, so that the outer end of the corresponding transverse limit column 2 extends out of the corresponding transverse guide sleeve 3, and its end is inserted into the corresponding lock groove of the door frame (the lock groove corresponds to the corresponding transverse guide sleeve 3), thereby achieving locking.

[0023] Furthermore, the left and right sides of the upper part of the rotating gear 1 are fixed with laterally extending connecting sleeves 40, and the left and right sides of the lower part of the rotating gear 1 are fixed with laterally extending connecting sleeves 40. A through hole with a rectangular cross-section is formed in the middle of the lower connecting sleeve 40. The lower horizontally movable rack 30 is inserted into the through holes of the two lower connecting sleeves 40, and it cooperates with the through holes. A bottom wear-resistant slide plate 41 is fixed to the bottom surface of the through hole, and the bottom surface of the lower horizontally movable rack 30 is pressed against the top surface of the bottom wear-resistant slide plate 41; lubricating oil is applied to the inner wall of the through hole, and the bottom wear-resistant slide plate 41 reduces the wear of the lower horizontally movable rack 30 when it moves laterally, prevents jamming, and ensures normal operation.

[0024] A transverse through hole with a T-shaped cross section extending left and right is formed in the middle of the upper connecting sleeve 40, and a radial extension portion 210 is formed on the front and rear side walls of the top of the upper horizontal moving rack 20. The upper horizontal moving rack 20 is inserted into the transverse through hole and matched with the transverse through hole. Wear-resistant strips 42 are fixed on the bottom surfaces of the grooves on the front and rear sides of the upper part of the transverse through hole, and the bottom surface of the radial extension portion 210 is pressed against the top surface of the corresponding wear-resistant strip 42. This structure can support the upper horizontal moving rack 20 when it moves horizontally, so that the bottom surface of the upper horizontal moving rack 20 is not easy to contact the bottom surface of the transverse through hole. Lubricating oil also needs to be applied to the transverse through hole. The wear-resistant strips 42 make the upper horizontal moving rack 20 less worn when it moves horizontally, prevent jamming, and ensure normal operation.

[0025] Furthermore, a self-lubricating wear-resistant sleeve 4 is fixed on the inner wall of the transverse guide sleeve 3, and the outer wall of the transverse limit column 2 is tightly attached to the inner wall of the self-lubricating wear-resistant sleeve 4. The self-lubricating wear-resistant sleeve 4 can ensure that the transverse limit column 2 moves left and right along the transverse guide sleeve 3 smoothly and stably.

[0026] Furthermore, an upper vertical positioning through hole 43 is formed on the bottom surface of the transverse through hole of one of the upper connecting sleeves 40, and a horizontal connecting plate 60 is fixed to the rear wall surface of the door body 10 below the upper vertical positioning through hole 43. A vertical positioning screw 61 is screwed in the middle vertical threaded through hole of the horizontal connecting plate 60, and the upper end of the vertical positioning screw 61 is a conical portion, which extends out of the top surface of the horizontal connecting plate 60 and faces the upper vertical positioning through hole 43, and the bottom of the vertical positioning screw 61 extends out of the bottom surface of the horizontal connecting plate 60 and is formed with a rotating portion.

[0027] Furthermore, a lower vertical positioning through hole 44 is formed on the top surface of the through hole of one of the lower connecting sleeves 40, and a lower horizontal connecting plate 70 is fixed on the rear wall surface of the door body 10 above the lower vertical positioning through hole 44. A lower vertical positioning screw 71 is screwed in the middle vertical screw-connecting hole of the lower horizontal connecting plate 70, and the lower end of the lower vertical positioning screw 71 is a conical portion, which extends out of the top surface of the lower horizontal connecting plate 70 and faces the lower vertical positioning through hole 44, and the top end of the vertical positioning screw 71 extends out of the top surface of the lower horizontal connecting plate 70 and is formed with an upper rotating portion.

[0028] In this embodiment, after rotating the rotating wheel 6, the outer end of the corresponding transverse limit column 2 extends out of the corresponding transverse guide sleeve 3, and the end thereof is inserted into the corresponding lock groove of the door frame. After locking is achieved, the lower vertical positioning screw 71 and the vertical positioning screw 61 can be rotated, so that the upper end of the vertical positioning screw 61 passes through the upper vertical positioning through hole 43 and extends into the corresponding tooth groove on the bottom surface of the upper horizontal moving rack 20 to achieve locking. The corresponding bottom end of the lower vertical positioning screw 71 passes through the lower vertical positioning through hole 44 and extends into the corresponding tooth groove on the top surface of the lower horizontal moving rack 30 to achieve locking. At this time, the upper horizontal moving rack 20 and the lower horizontal moving rack 30 will no longer move, ensuring the closed state of the door body 10.

[0029] Among them, when the upper end of the vertical positioning screw 61 and the bottom end of the lower vertical positioning screw 71 cannot be inserted into the corresponding tooth grooves, the rotating wheel 6 can be rotated to slightly adjust the distance that the outer end of the lateral limit column 2 extends to ensure that it corresponds to the tooth groove for easy locking. Among them, the upper horizontal movable rack 20 and the lower horizontal movable rack 30 move synchronously, and the number of teeth, shape of teeth, etc. of the two are the same. Therefore, only the tooth grooves of one of them need to correspond, and the tooth grooves of the other will also correspond, that is, as long as the corresponding tooth grooves of the upper horizontal movable rack 20 correspond to the upper end of the vertical positioning screw 61, the bottom end of the lower vertical positioning screw 71 will also correspond to the tooth grooves of the lower horizontal movable rack 30. It can be debugged during manufacturing, which makes its adjustment very convenient.

Claims

1. A rack-type movable explosion-proof door, comprising a door body (10), characterized in that: A rotating gear (1) is movably connected to the middle of the rear wall of the door body (10); an upper horizontally movable rack (20) is provided above the rotating gear (1); a lower horizontally movable rack (30) is provided below the rotating gear (1); the teeth on the bottom surface of the upper horizontally movable rack (20) mesh with the rotating gear (1); and the teeth on the top surface of the lower horizontally movable rack (30) mesh with the rotating gear (1); A right vertical plate (21) is fixed to the right end of the upper horizontally movable rack (20), a left vertical plate (31) is fixed to the left end of the lower horizontally movable rack (30), and a plurality of transverse limiting columns (2) are fixed on the outer side walls of the left vertical plate (31) and the right vertical plate (21), the right transverse limiting column (2) is inserted into a corresponding transverse guide sleeve (3) fixed on the right side of the rear wall surface of the door body (10), and the left transverse limiting column (2) is inserted into a corresponding transverse guide sleeve (3) fixed on the left side of the rear wall surface of the door body (10); A transversely extending connecting sleeve (40) is fixed to the left and right sides of the upper part of the rotating gear (1), and a transversely extending connecting sleeve (40) is fixed to the left and right sides of the lower part of the rotating gear (1). A through hole with a rectangular cross section is formed in the middle of the lower connecting sleeve (40). The lower horizontally movable rack (30) is inserted into the through holes of the two lower connecting sleeves (40) and cooperates with the through holes. A bottom wear-resistant slide plate (41) is fixed to the bottom surface of the through hole, and the bottom surface of the lower horizontally movable rack (30) is pressed against the top surface of the bottom wear-resistant slide plate (41); A transverse through hole with a T-shaped cross section extending left and right is formed in the middle of the upper connecting sleeve (40), and a radial extension portion (210) is formed on the front and rear side walls of the top of the upper horizontal movable rack (20). The upper horizontal movable rack (20) is inserted into the transverse through hole and matched with the transverse through hole. Wear-resistant strips (42) are fixed on the bottom surfaces of the grooves on the front and rear sides of the upper part of the transverse through hole, and the bottom surface of the radial extension portion (210) is pressed against the top surface of the corresponding wear-resistant strip (42).

2. A rack-type movable explosion-proof door according to claim 1, characterized in that: A self-lubricating wear-resistant sleeve (4) is fixed on the inner side wall of the transverse guide sleeve (3), and the outer side wall of the transverse limit column (2) is in close contact with the inner side wall of the self-lubricating wear-resistant sleeve (4).

3. The rack-type movable explosion-proof door according to claim 1, characterized in that: An intermediate support bending part (11) is fixed in the middle of the rear wall surface of the door body (10); the inner end of the rotating shaft fixed in the middle of the rotating gear (1) is movably connected to the rear wall plate of the door body (10) through a bearing; the outer end of the rotating shaft of the rotating gear (1) is movably connected to the vertical plate body of the intermediate support bending part (11) through a bearing; the outer end of the rotating shaft of the rotating gear (1) extends out of the vertical plate body of the intermediate support bending part (11) and is fixed with a rotating wheel (6).

4. The rack-type movable explosion-proof door according to claim 1, characterized in that: An upper vertical positioning through hole (43) is formed on the bottom surface of the transverse through hole of one of the upper connecting sleeves (40), and a horizontal connecting plate (60) is fixed on the rear wall surface of the door body (10) below the upper vertical positioning through hole (43). A vertical positioning screw (61) is screwed into the middle vertical screw-connecting through hole of the horizontal connecting plate (60), and the upper end of the vertical positioning screw (61) extends out of the top surface of the horizontal connecting plate (60) and faces the upper vertical positioning through hole (43).

5. The rack-type movable explosion-proof door according to claim 1, characterized in that: A lower vertical positioning through hole (44) is formed on the top surface of the through hole of one of the lower connecting sleeves (40), a lower horizontal connecting plate (70) is fixed on the rear wall surface of the door body (10) above the lower vertical positioning through hole (44), a lower vertical positioning screw (71) is screwed into the middle vertical screw-connecting through hole of the lower horizontal connecting plate (70), and the lower end of the lower vertical positioning screw (71) extends out of the top surface of the lower horizontal connecting plate (70) and faces the lower vertical positioning through hole (44).

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