TWI677615B - Hot melt type safety door buckle device - Google Patents

Abstract

The present invention provides a hot-melt type safety door buckle device. Its main features include: a first positioning member provided on one side of a swing end of a swing-type door piece; a seat body provided with a transverse through hole and a hole end outside the hole Facing the first positioning member; the second positioning member provided in the transverse through hole, the first diameter end of which faces the outer hole end of the transverse through hole, and the second diameter end thereof facing the inner hole end of the transverse through hole; The space is formed between the outer periphery of the second positioning member and the transverse through hole, and the space tapered end of the space corresponding to the conical ring-shaped cylindrical space between the transverse through hole and the second positioning member is matched at the end with the inside and outside diameters thereof. ; Filled with a low-melting metal material combined in a cone-shaped cylindrical space, the shape of which conforms to the shape of the cone-shaped cylindrical space and has a cone-shaped cylindrical solid shape with uniform wall thickness.

Description

Hot-melt safety door buckle device

The present invention relates to a door buckle device; in particular, to a revealer of an innovative structure type of a hot-melt safety door buckle device.

At present, the door buckle devices on the market can be divided into positioning types such as magnetic type and snap type according to the structure of the positioning door body.

In recent years, in order to consider fire protection requirements, a related industry has developed a hot-melt safety door buckle device that can instantly melt a low-melting metal set in its positioning part due to high temperatures in the event of a fire to release the door body. The door body automatically swings and swings to the closed state, so as to achieve the fire safety effect of blocking the spread of fire tongue and thick smoke. For its conventional patented technology, please refer to the new patent case of M531503 "Fire Door Stop" announced on November 1, 105, Republic of China.

However, the structure of the above-mentioned conventional hot-melt safety door buckle device has been found in actual application experience. However, there are still some problems and shortcomings. For example: because the conventional hot-melt safety door buckle device has a low setting position The melting point metal is cast in a straight cylindrical shape into a ring-shaped gap formed between a straight cylindrical inner groove wall provided in an outer seat body and a straight cylindrical peripheral wall of a positioning member (such as a magnet, a fastener, etc.) And the thickness of the wall of the low-melting metal cylinder must be below a certain thickness (such as several millimeters) to ensure that it can melt immediately when a fire occurs; however, because the straight inner groove wall and the straight cylinder of the positioning member are set in the outer seat During the process of pouring low-melting metal between the peripheral walls, the position of the positioning member relative to the straight inner groove wall provided by the outer seat body is difficult to accurately locate in a concentric circle. Therefore, after the low-melting metal is solidified, it is often found The uneven thickness of the lateral wall of the cylinder results in inconsistent melting points of the lateral wall of the cylinder, difficulty in accurately predicting the overall melting temperature of the low melting point metal, and poor quality and performance. Point.

Furthermore, since the hot-melt safety door buckle device is usually installed on the side of the swing end of the door sheet, it can be seen that when the low melting point metal is melted, the positioning member is released from the outer seat body as the door sheet swings out. The path of the inner groove wall is an arc-shaped path rather than a straight-out state. In this way, the straight-shaped peripheral wall of the positioning member will be in a straight-cylindrical shape due to its setting line and the outer seat during the withdrawal process. The orientation line of the inner groove wall changes from the original parallel relationship to the staggered relationship, which may easily cause the positioning member to be stuck in the straight inner groove wall of the outer seat body, and the door body cannot achieve automatic displacement. Expected effect of closure.

Perhaps, the industry can increase the cross-sectional area of the annular gap between the straight cylindrical inner groove wall provided by the outer base body and the straight cylindrical wall provided by the positioning member, so that the straight cylindrical wall of the positioning member can be avoided during the withdrawal process. The possibility of friction and interference with the straight cylindrical inner groove wall of the outer seat body, but in this way, the type that causes the thickness of the wall of the low-melting metal cylinder to double, which will greatly reduce its hot melt sensitivity and shortcomings. This is an important technical issue that deserves further attention from the relevant industries.

The main purpose of the present invention is to provide a hot-melt safety door buckle device. The technical problem to be solved is to think about how to develop a new type of hot-melt safety door buckle device with better practicality. .

Based on the foregoing objectives, the technical features of the present invention for solving the problem mainly lie in that the hot-melt safety door buckle device includes: a first positioning member for setting and setting on the swing end side of the swing-type door piece; The different positions are provided with a mounting site and a transverse through-hole. The transverse through-hole has an outer hole end and an inner hole end, and the outer hole end faces the first positioning member. A second positioning member is installed in the transverse direction provided by the seat. Inside the through hole, the second positioning member has a first diameter end and a second diameter end, the first diameter end faces the outer hole end of the lateral through hole provided by the base body, and the second diameter end faces the lateral through hole of the base body. Inner hole end; a conical ring cylindrical space is formed between the outer periphery of the second positioning member and the transverse through hole provided in the seat, so that the conical ring cylindrical space, the second positioning member and the seat are transversely provided The three through-holes are arranged in a concentric circle. The conical ring-shaped cylindrical space has a space-enlarging end and a space-tapering end, and one end of the space-tapering end corresponding to the space between the transverse through-hole and the second positioning member. Match between inside and outside diameter Relationship; a low-melting-point metal material, filled and combined in a conical ring-shaped cylindrical space, the solid shape of the low-melting-point metal material conforms to the shape of the conical-shaped cylindrical space, and presents a conical ring-shaped cylindrical solid with uniform wall thickness Type.

The main effects and advantages of the present invention include: 1. It is easy to achieve a concentric circle orthogonal arrangement relationship between the second positioning member of the hot-melt safety door buckle device and the transverse through hole provided in the seat body to ensure filling between the two. The low-melting-point metal material ’s thickness on each side wall can be averaged, so that the melting points of the side-walls are consistent, so that the overall melting temperature of the low-melting metal can be accurately estimated, and the quality and safety performance requirements of the hot-melt safety door buckle device can be effectively improved. Practical and progressive. 2. With the shape characteristic of the cone-shaped cylindrical space, when the low-melting-point metal material is melted due to high temperature, the path of the second through-hole provided by the second positioning member as the door piece swings out of the outer seat body is an arc. Shape, and the conical ring cylindrical space can just follow this path to avoid the blocking friction between the second positioning member and the transverse through hole, so it can ensure that the second positioning member comes out smoothly and unobstructed. Under the condition that the wall thickness of the low melting point metal does not need to be expanded, the technical features of the present invention enable the swing-type door to release the hot-melt safety door buckle device to achieve the expected safety and disaster prevention effect of automatic displacement closing when the fire is hot It is particularly practical and progressive.

Please refer to Figs. 1, 2, 3, and 4 for the preferred embodiments of the hot-melt safety door buckle device of the present invention. However, these embodiments are for illustrative purposes only and are not subject to this structure in patent applications. limit.

The hot-melt safety door buckle device includes: a first positioning member 10 for mounting and setting on a side of a swing end 12 of a swing-type door piece 11; a body 20 having a different position The mounting portion 21 and a transverse through hole 22 have an outer hole end 221 and an inner hole end 222, wherein the outer hole end 221 faces the first positioning member 10; a second positioning member 30, The second positioning member 30 has a first diameter end 31 and a second diameter end 32, and the first diameter end 31 penetrates the lateral through hole 22 provided in the base body 20. The outer hole end 221 of the hole 22, and the second diameter end 32 faces the inner hole end 222 of the lateral through hole 22 provided in the base body 20; a cone-shaped cylindrical space 40 is formed opposite the second positioning member 30. Between the outer periphery of the base body and the lateral through hole 22 provided in the base body 20, so that the conical annular cylindrical space 40, the second positioning member 30, and the lateral through hole 22 provided in the base body 20 are concentric circles. In the arrangement relationship, the tapered annular cylindrical space 40 has a space enlarged end 41 and a space tapered end 42, and the lateral through hole 22 One end corresponding to the tapered end 42 of the space between the second positioning member 30 and the inner and outer diameters is a fitting relationship (Note: The fitting relationship includes a person having a fitting tolerance value, the tolerance value The difference between positive and negative is extremely small, but it will exclude the definition of the second concentric circle configuration state caused by the second positioning member 30); a low melting point metal material 50 is filled and combined in the conical ring cylindrical space 40 to form The solid shape of the low-melting-point metal material 50 corresponds to the shape of the conical ring-shaped cylindrical space 40, and presents a conical ring-shaped cylindrical solid type with uniform wall thickness. The low melting point metal material 50 is a fusible alloy composed of any one of bismuth, tin, lead, cadmium, or indium, or any combination thereof.

As shown in FIG. 2, in this example, the lateral through hole 22 provided in the base body 20 is a straight hole wall type; the second positioning member 30 has a space between the first diameter end 31 and the second diameter end 32. A cone-shaped outer peripheral wall 33 is formed between the first diameter end 31 and the second diameter end 32. The cone-shaped outer peripheral wall 33 is formed from the first diameter end 31 toward the second diameter end 32. The shape of the diameter end 32 is tapered, and the first diameter end 31 faces the hole end 221 of the lateral through hole 22 provided in the base body 20, and the second diameter end 32 faces the inner hole end 222 of the lateral through hole 22. In addition, the first diameter end 31 and the outer hole end 221 have a matching relationship between the inner and outer diameters, and the second diameter end 32 and the inner hole end 222 have a ring-shaped distance relationship.

As shown in Figures 1 to 3, in this example, the first positioning member 10 is a magnetically permeable magnet, and the second positioning member 30 is a metal block with a magnet 35 embedded in the structure; this example is for illustration The first positioning member 10 and the second positioning member 30 may be implemented by magnetic attraction.

In addition, as shown in FIG. 4, in this example, the same end of the horizontal through-hole 22 and the second positioning member 30 that has an inner and outer diameter matching relationship is an arrangement relationship in which the end faces are flush with each other; in this example, In a preferred implementation mode, it is reasonably easier to specifically realize the relationship between the horizontal through-hole 22 and the second positioning member 30 that match the inner and outer diameters.

Based on the above structural composition type and technical characteristics, the specific application and implementation status of the hot-melt safety door buckle device disclosed in the present invention is based on the above-mentioned preferred embodiment. First, as shown in FIGS. The flap 11 is in a state where the door is opened at an angle and snap-locked by a hot-melt safety door buckle device. In this state, the door bow 60 assembled with the swing-type flap 11 is in a state of accumulating resetting force, while the hot-melt type The safety door buckle device is provided with a first positioning member 10 located on the swing end 12 side of the swing-type door piece 11, and positioning is achieved by a magnetic attraction between the second positioning member 30 and the second positioning member 30. The horizontal through-holes 22 provided in the body 20 are joined together by filling the low-melting-point metal material 50 that is combined in the conical ring-shaped cylindrical space 40; under normal use, if the user applies force to close the swing-type When the door piece 11 is formed, the first positioning member 10 is separated from the second positioning member 30. Then, as shown in Figs. 7 and 8, when the surrounding temperature rises to a certain high temperature (such as 45 degrees) due to a fire, the low-melting metal material 50 will melt, causing the second positioning member 30 and the base 20 to be set. The coupling and fixing state between the transverse through-holes 22 is lost. At this time, the swing-type door panel 11 is relatively released, and the reset force accumulated by the door arch 60 will push the swing-type door panel 11 to swing toward the closing angle ( (As shown by arrow L1), and the second positioning member 30 will be led out by the first positioning member 10 (because the two are magnetically attracted), so as to leave the lateral through hole 22 provided in the base 20; and the second positioning member When the 30 is pulled out, because the tapered outer peripheral wall 33 is tapered from the first diameter end 31 to the second diameter end 32, when the second positioning member 30 is pulled out along the arc path with the first positioning member 10, The tapered outer peripheral wall 33 can completely avoid the possibility of a collision and blocking phenomenon with the lateral through hole 22 in the shape of a straight hole wall, thereby ensuring the smoothness of the second positioning member 30's disengagement action.

As shown in FIG. 9, in this example, a ring flange 311 is formed around the first diameter end 31 of the second positioning member 30, and the outer end 221 of the lateral through hole 22 provided in the base body 20 is matched with A ring-shaped shoulder 223 is provided for the ring flange 311 to be inserted. The embodiment is mainly for illustration. Since the low-melting-point metal material 50 is formed by filling and pouring, the lateral through-hole 22 and the second positioning member 30 If there is a large gap between the inner and outer diameters of one end, the low melting point metal material 50 is likely to overflow, which will affect its molding quality. Based on this, through the addition of the ring flange 311 disclosed in this example , Can block the low-melting-point metal material 50 filled into the conical ring-shaped cylindrical space 40, effectively avoiding the aforementioned problems.

As shown in FIGS. 10 and 11, in this example, the partial hole wall of the inner hole end 222 of the lateral through hole 22 provided in the base body 20 extends further outward to form an enlarged filler slot 224; The purpose of the filler notch 224 is mainly based on the fact that the space-enlarged end 41 of the conical ring-shaped cylindrical space 40 may have a problem that the gap is too small, which makes it difficult for the low-melting-point metal material 50 to be poured. The addition of can increase the area of the injection site, thereby improving the convenience of the pouring operation.

In addition, as shown in FIG. 11, in this example, the tapered outer peripheral wall 33 of the second positioning member 30 is further provided with at least one radially inner recessed portion 331 for a partial region of the low-melting-point metal material 50 to be filled therein. The purpose of adding the radial inner recess 331 in this example is to increase the contact area of the low-melting-point metal material 50 embedded in the structure of the second positioning member 30 after infusion molding, so that the low-melting-point metal material 50 and the second positioning member can be increased. The bonding state between 30 is stronger and the strength of the force is better to prevent the two from being easily separated.

As shown in FIG. 12, it is another embodiment of the mounting part 21B type provided in the base body 20B. The mounting part 21B disclosed in this example is an ear seat type protruding on both sides of the base body 20B. A lock hole 211 is provided to be fixed to the ground by a screw 70.

As shown in FIG. 13, this is an embodiment in which the base body 20C is provided in a wall-mounted type. The advantage of the base body 20C in the wall-mounted type disclosed in this example is that it can have a higher installation. Position, because when the fire occurs, the higher the temperature from the ground, the higher the temperature, so the low-melting-point metal material 50 is more likely to have better action sensitivity due to high temperature melting.

As shown in FIG. 14, the first positioning member 10B and the second positioning member 30B disclosed in this example are provided in the form of male and female fasteners, and this is also a form of positioning that can be implemented concretely.

As shown in FIG. 15, in this example, a straight cylindrical outer peripheral wall 34 is formed between the first diameter end 31 and the second diameter end 32 of the second positioning member 30; and a lateral through hole is provided in the base 20. The outer diameter of the outer hole end 221 is larger than the outer diameter of the inner hole end 222. The lateral through hole 22 is formed in a tapered shape from the outer hole end 221 to the inner hole end 222. The inner diameter and the outer diameter are matched between the end of the hole 222 and the second diameter end 32 of the second positioning member 30. The outer hole end 221 of the lateral through hole 22 and the first diameter of the second positioning member 30 are matched. The ends 31 have a ring-shaped distance relationship; this example is for illustration. The wall thickness expansion direction of the low-melting-point metal material 50 may also be an implementation type different from the end direction disclosed in FIG. 4 above. , Can also achieve the equivalent of its appeal.

10、10B‧‧‧First positioning component

11‧‧‧ swing-out door

12‧‧‧ swing end

20, 20B, 20C‧‧‧ seat

21, 21B‧‧‧Mounting parts

2111‧‧‧ keyhole

22‧‧‧Horizontal through holes

221‧‧‧ Outer hole end

222‧‧‧Inner hole end

223‧‧‧Ring Shoulder

224‧‧‧Enlarge the filling slot

30, 30B‧‧‧Second positioning component

31 · ‧‧First diameter end

311‧‧‧Ring flange

32‧‧‧Second diameter end

33‧‧‧conical peripheral wall

331‧‧‧Radial inward recess

34‧‧‧Straight cylindrical outer peripheral wall

35‧‧‧magnets

40‧‧‧ cone-shaped cylindrical space

41 · ‧‧ Space Expansion End

42‧‧‧Space taper end

50‧‧‧ low melting point metal materials

60‧‧‧door bow

70‧‧‧screw

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of a preferred embodiment of the present invention. Figure 3 is a sectional view of a preferred embodiment of the present invention. FIG. 4 is a partially enlarged cross-sectional view of a transverse through-hole of the present invention. FIG. 5 is a schematic diagram of positioning a second positioning member of the present invention in a lateral through hole of a base. Figure 6 is a partially enlarged view of Figure 5. FIG. 7 is a schematic diagram of the second positioning member of the present invention separated from the lateral through hole of the base. FIG. 8 is a partially enlarged view of FIG. 7. Fig. 9 is a view showing an embodiment in which a ring-flange type -shaped state is formed around the first diameter end of the second positioning member of the present invention. Fig. 10 is a view showing an embodiment in which a part of a hole wall of an inner hole end of a lateral through hole provided in the seat body of the present invention extends outward to form an enlarged filling slot. FIG. 11 is a sectional view of FIG. 10. Fig. 12 is a diagram showing an embodiment of a simple seat structure of the present invention. FIG. 13 is a diagram of an embodiment in which the seat body of the present invention is set in a wall-hanging type. Fig. 14 is a view showing an embodiment in which the first and second positioning members of the present invention are provided as male and female fasteners. Fig. 15 is a diagram showing an embodiment in which the second positioning member of the present invention is provided in a straight cylindrical outer peripheral wall.

Claims (13)

A hot-melt type safety door buckle device includes: a first positioning member for mounting and setting on a swing end side of a swing-type door piece; a body having a mounting position and a transverse position at different positions A through hole, the transverse through hole has an outer hole end and an inner hole end, wherein the outer hole end faces the first positioning member; a second positioning member is installed in the lateral through hole provided in the base body; The second positioning member has a first diameter end and a second diameter end, the first diameter end is facing the hole end outside the lateral through-hole provided in the base body, and the second diameter end is facing through in the lateral through-hole provided by the base body The inner hole end of the hole; a conical ring cylindrical space is formed between the outer periphery of the second positioning member and the transverse through hole provided by the seat, so that the conical ring cylindrical space and the second positioning member And the three lateral through holes provided by the base body are arranged in a concentric circle. The conical ring cylindrical space has a space expanding end and a space constricting end, and the lateral through hole and the second positioning member Between one end of the tapered end of the space, where The outer diameter is a matching relationship; and a low-melting metal material is filled and combined in the tapered annular cylindrical space, and the solid shape of the low-melting metal material is consistent with the shape of the tapered cylindrical space, It has a conical ring-shaped cylindrical solid shape with equal wall thickness; and the lateral through hole provided by the base body is a straight hole wall shape; the second positioning member has a space between the first diameter end and the A cone-shaped outer peripheral wall between the second diameter ends, the outer diameter of the first diameter end is larger than the outer diameter of the second diameter end, and the cone-shaped outer wall is formed from the first diameter end toward the second diameter end. A reduced shape, and the first diameter end faces the outer hole end of the lateral through hole provided by the base body, the second diameter end faces the inner hole end of the lateral through hole, and the first diameter end and the lateral penetration The outer hole ends of the hole have a matching relationship between the inner and outer diameters, and the second diameter end and the inner hole end of the lateral through hole have a ring-shaped spacing relationship. According to the hot-melt type safety door buckle device described in item 1 of the patent application scope, a ring flange is formed around the first diameter end of the second positioning member, and the outer end of the lateral through hole provided in the seat body is matched with An annular shoulder is provided for the ring flange to be inserted. The hot-melt type safety door buckle device according to item 1 of the scope of patent application, wherein the tapered outer peripheral wall of the second positioning member is further provided with at least one radially inner concave portion for filling in a local area of the low-melting-point metal material. among them. According to the hot-melt type safety door buckle device described in item 1 of the scope of patent application, wherein the partial hole wall of the inner hole end of the lateral through hole provided in the base body further extends outward to form an enlarged stuffing slot. According to the hot-melt type safety door buckle device described in item 1 of the scope of the patent application, the first positioning member is a magnetically permeable magnet, and the second positioning member is a metal block with a magnet embedded in the structure. According to the hot-melt safety door buckle device described in item 1 of the patent application scope, wherein the first positioning member is a female buckle, and the second positioning member is provided with a male buckle protruding from the first diameter end Piece block type. According to the hot-melt safety door buckle device described in item 1 of the scope of the patent application, wherein the same end in which the lateral through hole and the second positioning member cooperate with each other inside and outside is in a configuration in which the end faces are flush with each other relationship. A hot-melt type safety door buckle device includes: a first positioning member for mounting and setting on a swing end side of a swing-type door piece; a body having a mounting position and a transverse position at different positions A through hole, the transverse through hole has an outer hole end and an inner hole end, wherein the outer hole end faces the first positioning member; a second positioning member is installed in the lateral through hole provided in the base body; The second positioning member has a first diameter end and a second diameter end, the first diameter end is facing the hole end outside the lateral through-hole provided in the base body, and the second diameter end is facing through in the lateral through-hole provided by the base body The inner hole end of the hole; a conical ring cylindrical space is formed between the outer periphery of the second positioning member and the transverse through hole provided by the seat, so that the conical ring cylindrical space and the second positioning member And the three lateral through holes provided by the base body are arranged in a concentric circle. The conical ring cylindrical space has a space expanding end and a space constricting end, and the lateral through hole and the second positioning member Between one end of the tapered end of the space, where The outer diameter is a matching relationship; and a low-melting metal material is filled and combined in the tapered annular cylindrical space, and the solid shape of the low-melting metal material is consistent with the shape of the tapered cylindrical space, It has a conical ring-shaped cylindrical solid shape with equal wall thickness; and a straight cylindrical outer peripheral wall is formed between the first diameter end and the second diameter end of the second positioning member; The outer diameter of the outer hole end of the penetrating hole is larger than the outer diameter of the inner hole end, forming the shape of the lateral penetrating hole that tapers from the outer hole end toward the inner hole end, and the inner hole end of the transverse penetrating hole and the second There is a matching relationship between the second diameter ends of the positioning member and the inside and outside diameters, and the relationship between the outer hole end of the lateral through hole and the first diameter end of the second positioning member has a ring-shaped distance. . According to the hot-melt type safety door buckle device described in item 8 of the scope of patent application, wherein the tapered outer peripheral wall of the second positioning member is further provided with at least one radially inner recessed portion for filling in a local area of the low-melting-point metal material among them. According to the hot-melt type safety door buckle device described in item 8 of the scope of the patent application, wherein the partial hole wall of the inner hole end of the transverse through hole provided in the base body further extends outward to form an enlarged packing slot. According to the hot-melt type safety door buckle device described in item 8 of the scope of patent application, wherein the first positioning member is a magnet guide, and the second positioning member is a metal block body with a magnet embedded in the structure. According to the hot-melt safety door buckle device described in item 8 of the scope of patent application, wherein the first positioning member is a female buckle, and the second positioning member is provided with a male buckle protruding from the first diameter end Piece block type. The hot-melt safety door buckle device according to item 8 of the scope of patent application, wherein the same end in which the lateral through-hole and the second positioning member are fitted with the inside and outside diameters are arranged with the end faces flush with each other relationship.