TWM466961U - Safety bolt - Google Patents

Description

Safety bolt

This creation relates to a safety bolt installed on a fire door, especially a safety bolt that is automatically locked when exposed to a fire to ensure that the door is not accidentally opened and the fire spreads rapidly.

Generally speaking, when a fire occurs in an indoor space, if the door in each compartment is closed, the speed of fire spread can be effectively reduced and the impact force caused by the explosion due to combustion can be effectively blocked, thereby increasing the time of escape. With opportunities. However, when a fire occurs, the person in the fire may not be able to lock the door immediately. If the door lock is not locked, the door lock may be retracted under the environment of the fire and the door is opened. .

To this end, the manufacturer has developed a safety bolt installed inside the door. The safety bolt is independent of the door lock. Under normal circumstances (when no fire occurs), the safety bolt has no effect. When a fire occurs, After the blocking member that prevents the plug of the safety plug from sticking out is melted, the plug body is biased by the spring to extend out of the safety bolt and engage with the other door or the door frame, so that the door is locked by the safety bolt without accidentally opening. However, the bolt system of the safety bolt is held by the spring bias and is placed at the position where the door or the door frame is fitted. However, the spring may lose its elasticity due to the temperature of the fire field, and the plug of the safety bolt may be accidentally retracted. The door can be opened.

In order to solve the problem, the present invention provides a safety plug, comprising a receiving member, comprising a front portion and a rear portion separated along a first axial direction, the receiving member further comprising a space extending to the front end surface and being fixed to the receiving member a connecting member of the front section, the connecting member includes a through hole extending into the space, and a plug body slidably disposed in the receiving member, the plug body including a front end and a rear end portion spaced along the first axial direction and facing the front portion a rear end, the plug body further includes a chamber, the plug system is displaced between the retracted position in the space of the first axial direction contracted into the receiving member and the extended position outside the space extending out of the receiving member, a spring disposed in the space of the accommodating member and located between the rear end of the plug body and the accommodating member, the spring biasing the plug body toward the extended position, and a ejector pin accommodated in the space of the accommodating member, the ejector pin includes a top apex The end rod is displaced between the top abutting position and the non-abutting position, and a blocking member is made of a material having a melting point much lower than that of the receiving member, the connecting member, the plug body, the spring and the ejector pin, and the blocking member and the connecting member are connected. The pieces are combined and located in the through holes.

When the blocking member is located in the through hole, the plug body is located at the retracted position and compresses the spring, the ejector pin is located at the non-abutting position, and the top abutting end of the ram is located in the cavity of the plug body.

When the blocking member is melted by the high temperature to open the through hole, the spring biasing plug is displaced from the retracted position to the extended position in the first axial direction.

When the plug is in the extended position, the top end of the jack is disengaged from the chamber, causing the jack to be displaced from the non-abutment position to the abutment position.

When the jack is in the abutting position, the top abutting end of the jack abuts against the rear end of the plug body, so that the plug body cannot be displaced from the extended position to the retracted position.

The safety plug of the present invention, when the plug body is displaced to the extended position, the ejector rod is separated from the chamber of the plug body and abuts against the rear end of the plug body, so that the plug body cannot be displaced from the extended position to the retracted position, even if the spring is due to the fire field The temperature rises and loses its elasticity, and the plug remains blocked by the ram and remains in the extended position, further ensuring that the plug does not accidentally detach from the coupling hole of the second door.

10‧‧‧Safety bolts 32‧‧‧Connectings 34‧‧‧Wings 36‧‧‧ First surface 38‧‧‧Second surface 40‧‧‧Keyholes 42‧‧‧Fittings 44‧‧ End 46‧‧‧through hole 48‧‧‧Exit 50‧‧‧Limited face 52‧‧‧Joint part 54‧‧‧Upper end face 55‧‧‧Bottom end face 56‧‧‧ Joint surface 58‧‧‧Blocking 60‧‧‧Baffle 62‧‧‧ Front surface 64‧‧‧ Rear surface 65‧‧‧ Outer edge 66‧‧‧ First and second fittings 68‧‧‧ Outer side 70‧‧‧ Inside 72‧ ‧ ‧ Upper side 74‧‧‧ Lower side 76‧‧‧ Connection end 78‧‧‧ Free end 80‧‧‧ Hook body 81‧‧‧ Bevel 82‧‧‧Fitting face 84‧‧‧Bumps 86‧‧‧ Blocking surface 88‧‧‧Screw 100‧‧‧ Spring 102‧‧‧ First end 104‧‧‧Second end 106‧‧‧ First door 108‧‧‧ End face 110‧‧‧ Mounting hole 111‧‧‧ Opening 112 ‧‧‧Second door 11 ‧‧‧Side 116‧‧ ‧ joint hole 117‧‧ ‧ storage piece 119‧‧‧ former paragraph 131‧‧ ‧ 133 ‧ ‧ space 135 ‧ ‧ opening 137 ‧ ‧ pin hole 139 ‧ ‧ joint pin 151‧ ‧ ‧ 栓 153 155 155 155 155 157 157 157 157 157 ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ Top end 179‧‧‧ pivot end T‧‧‧ spacing X‧‧‧first axial Y‧‧‧second axial Z‧‧‧ third axial

The first figure is a three-dimensional appearance of the creation safety bolt mounted on the door.
The second figure is a three-dimensional exploded appearance of the creation safety plug.
Fig. 3 is a perspective view showing another angle of the blocking member in the creation safety plug.
Figure 4 is a cross-sectional view taken along line 4-4 of Figure 1.
Fig. 4A is a partial enlarged view of Fig. 4.
Fig. 4B is a cross-sectional view taken along line 4B-4B of Fig. 4.
Fig. 5 is a view showing the action of the plug penetrating into the second door after the blocking member is melted in the state of Fig. 4.
Figure 6 is a cross-sectional view taken along line 6-6 of Figure 5.

All of the following drawings are merely illustrative of the basic teachings of the present invention, and the extension of the number, position, relationship, and size of the components constituting the preferred embodiment will be explained in the drawings. Post-guided changes are implemented in industry skills. In addition, changes in the exact dimensions and size ratios associated with specific strengths, weights, strengths, and similar requirements are also within the skill of the industry after reading and understanding the teachings of this creation.

In the different figures, the same reference numerals are used to designate the same or similar elements; in addition, please refer to the text such as "first", "second", "upper", "lower", "before", "after", "inside" , "outside", "end", "part", "segment", "horizontal", "vertical", "inward", "outward", "twist", "length", "zone", "around" "," "lateral", "radial", "axial", and the like, are merely used to facilitate the construction of the reference figure and to merely describe the creation.

According to the drawings, the safety plug 10 of the present invention is mounted in a first door 106. The first door 106 includes an end surface 108 extending in the vertical direction, and a first axial direction X along a direction perpendicular to the vertical direction. An installation hole 110 extending and having an opening 111 at the end surface 108, the first door 106 and the second door 112 are pivotally mounted on opposite sides of the door frame, respectively, and the second door 112 includes a vertical extension Side 114, and a coupling aperture 116 located on side 114 and aligned with mounting aperture 110 of first door 106 when first and second doors 106, 112 are closed.
According to the drawings, the safety plug 10 of the present invention comprises a receiving member 117 made of a metal material. The receiving member 117 includes a front portion 119 and a rear portion 131 separated by a first axial direction X. The receiving member 117 further includes The front end 119 has an end surface extending along the first axial direction X to a space 133 of the rear section 131. The space 133 includes an opening 135 at the front section 119, and the receiving member 117 further includes a second portion from the outer circumferential surface and perpendicular to the first axial direction X. Two pin holes 137 extending in the axial direction Y. The receiving member 117 is received in the mounting hole 110 of the first door 106 and the front end 119 faces the end surface 108 of the first door 106.

According to a preferred embodiment shown in the present drawings, the safety pin 10 further includes a connector 32 made of a metal material, the connector 32 having a wing portion 34, the wing portion 34 being spaced apart along the first axis X. a first surface 36 and a second surface 38, and the wing portion 34 includes four locking holes 40 formed at four corners and extending from the first surface 36 along the first axial direction X to the second surface 38, the connecting member 32 further includes a set of joints 42 formed by the second surface 38 extending along the first axial direction X. The sleeve portion 42 includes a tail end 44 that extends away from the wing portion 34 along the first axial direction X. A surface 36 extends along the first axial direction X to the trailing end 44 of the nesting portion 42. The through hole 46 includes an outlet 48 that is aligned with the first surface 36, and a limit surface formed by the rounded corner is formed inside the outlet 48. 50, the limiting surface 50 causes the inner diameter of the outlet 48 to be larger than the through hole 46, and the fitting portion 42 further includes two joint portions 52 formed by the square holes formed by the outer peripheral surface along the second axial direction Y, each combined 52 defines a joint surface 56 that is parallel to a third axial direction X perpendicular to the first and second axial directions X, Y, and each joint portion 52 further includes a joint surface 56 and a third axial direction Z. An upper end surface 54 and a lower side end surface 55 are opened.

The fitting portion 42 of the connecting member 32 is inserted into the space 133 from the opening 135 of the receiving member 117, and the fitting portion 42 and the receiving member 117 are adhered by spot welding, so that the receiving member 117 and the connecting member 32 are non-detachably In combination, the through hole 46 of the connecting member 32 is aligned with the space 133, the end surface of the front portion 119 of the receiving member 117 abuts against the second surface 38 of the wing portion 34, and the wing portion 34 of the connecting member 32 abuts against the end surface 108 of the first door 106. The plurality of screws 88 pass through the respective locking holes 40 of the wing portion 34 and are locked into the first door 106, thereby fixing the connecting member 32 and the receiving member 117 to the opening 111 of the first door 106.

According to the drawings, the safety pin 10 further includes a blocking member 58 made of a glue material. The blocking member 58 includes a baffle 60 having a front surface 62 and a rear surface 64 spaced along the first axial direction X. The baffle 60 of the blocking member 58 further includes an outer edge 65 that tapers from the front surface 62 toward the rear surface 64 and tapers to the limiting surface 50 of the through hole 46 of the wing portion 34. The blocking member 58 is mounted on the connecting member 32. The through hole 46 causes the outer edge 65 of the baffle 60 to abut against the limiting surface 50 at the outlet 48 of the connector 32. The blocking member 58 further includes a convex rear surface 64 and is spaced along the second axial direction Y. The first axial direction X is away from the first and second fitting portions 66 of the front surface 62 of the baffle 60, and each of the fitting portions 66 includes a connecting end 76 connected to the rear surface 64 of the baffle 60, and along the first axis The X is spaced from the connecting end 76 and is away from a free end 78 of the rear surface 64 of the baffle 60. Each of the fitting portions 66 further includes an outer side 6 spaced along the second axial direction Y. With an inner side surface 70, the inner side surfaces 70 of the fitting portions 66 face each other, and the outer side surface 68 at the connecting end 76 of each fitting portion 66 is spaced apart from the fitting portion 42 of the connecting member 32, and each fitting portion The distance between the inner side faces 70 at the connecting ends 76 along the second axial direction Y is smaller than the distance between the inner side faces 70 of the respective fitting portions 66 at the free ends 78, the free ends of the respective fitting portions 66. The outer side faces 68 at 78 are spaced apart along the second axial direction Y by a distance greater than the inner diameter of the through hole 46 of the connector member 32. Each of the fitting portions 66 further includes an upper side spaced along the third axial direction Z. 72 and a lower side 74, a hook 80 is located on the outer side 68 of each of the mating portions 66 and includes a bevel 81 adjacent the free end 78 of each of the mating portions 66, the hook 80 further including the baffle 60 A fitting surface 82 extending along the surface 64 and extending along the third axial direction Z, each of the fitting portions 66 includes a projection 84 on the outer side surface 68 and adjacent to the hook body 80. The projections 84 of each of the fitting portions 66 include along the edge. A three-axis Z extending blocking surface 86.

When the blocking member 58 is mounted into the through hole 46 of the connecting member 32, the fitting portions 66 of the blocking member 58 project from the outlet 48 into the through hole 46 of the connecting member 32, causing the free end 78 of each engaging portion 66 to be along The inner end of the fitting portion 66 is deformed by the radial inward pressing, so that the inclined surface 81 of each fitting portion 66 slides along the limiting surface 50 of the outlet 48 of the connecting member 32 to guide the fitting of the blocking member 58. The portion 66 enters the through hole 46 of the connector 32. When each of the hooks 80 of the blocking member 58 is aligned with the engaging portion 52 of the fitting portion 42 of the connecting member 32, the elastic force of each of the hooks 80 of the blocking member 58 is transmitted through one of the engaging portions 66 and one of the engaging portions 42 respectively. The joint portion 52 is fitted, and the upper and lower side surfaces 72, 74 of the respective fitting portions 66 are adjacent to the upper side and the lower side end faces 54, 55 of the joint portion 52, and the blocking faces of the projections 84 of the respective fitting portions 66 are provided. The 86 abuts against the inner periphery of the through hole 46 to further prevent the blocking member 58 from moving relative to the connecting member 32.

According to the drawings, the safety pin 10 further includes a plug body 151 housed in the space 133 of the receiving member 117, a spring 100, a jack 175 and a joint pin 139. The plug body 151 includes a first axial direction X. A front end 153 and a rear end 155 are separated, and the front end 153 of the plug body 151 includes a top abutting surface 157 which is gradually narrowed away from the rear end 155 of the plug body 151. The plug body 151 includes a top surface 155 formed at the outer peripheral surface and located at the rear end 155. a flange 159 having a diameter perpendicular to the first axial direction X that is greater than the through hole 146 of the plug body 151 and the connector 32. The plug body 151 further includes a rear end 155 extending along the first axial direction X to the front end 153. A chamber 171, the plug body 151 further includes two shoulder portions 173 formed on the outer peripheral surface and located in the first axial direction X between the abutting surface 157 and the flange 159, and the front end 153 of the plug body 151 is along the first The axial direction X is spaced from the rear surface 64 of the baffle 60. The plug body 151 is in a retracted position in the space 133 of the accommodating member 117 in the first axial direction X (as shown in Figs. 4 and 4B) and an extended position outside the space 133 of the extending accommodating member 117 ( Displacement as shown in Figures 5 and 6.

The ejector pin 175 includes a top end 177 and a pivot end 179. The coupling pin 139 penetrates the pin hole 137 of the accommodating member 117 and passes through the pivot end 179 of the ejector pin 175, thereby causing the ejector pin 175 to engage with the pin 139. The longitudinal axis pivots between the abutting position and the non-abutting position, and when the front end 153 of the plug body 151 is located in the space 133 of the receiving member 117, the top end 177 of the jack 175 is located at the plug body 151. The non-abutment position in the chamber 171 (as shown in Fig. 4B).

The spring 100 is compressively positioned between the rear end 155 of the plug body 151 and the coupling pin 139. The spring 100 includes a first end 102 that is pressed against the rear end 155 of the plug body 151 and a second surface that is pressed against the outer circumferential surface of the coupling pin 139. The end 104 causes the spring 100 to bias the plug 151 toward the extended position, such that the front end 153 of the plug 151 is biased by the spring 100 to press against the inner side 70 of each of the fitting portions 66 of the blocking member 58, the blocking member 58 The fitting faces 82 of the fitting portions 66 abut against the respective engaging faces 56 of the connecting member 32, and the end faces of the front ends 153 of the plug bodies 151 are spaced apart from the rear surface 64 of the blocking member 58 by a distance T along the first axial direction X ( As shown in Fig. 4, the blocking member 58 is thus prevented from being detached from the connecting member 32 by the pressing of the plug 151, and the plug 151 is positioned in the retracted position.

For convenience of explanation, it is assumed that when the safety pin 10 is normally under the condition that the blocking member 58 holds the plug body 151 in the retracted position (as shown in FIGS. 4 and 4B), on the other hand, when the first door 106 and the second door 112 are The safety pin 10 is exposed to a fire, and the blocking member 58 is melted by heat due to a fire. The front end 153 of the plug body 151 is biased by the spring 100 and is retracted from the retracted position (as shown in Figures 4 and 4B) along the first axial direction X. The displacement passes through the receiving member 117 until the flange 159 of the plug 151 abuts against the extended position of the tail end 44 of the fitting portion 42 (as shown in Figs. 5 and 6), so that the front end 153 of the plug body 151 and each The shoulder portion 173 is located in the coupling hole 116 of the second door 112 and is engaged with the coupling hole 116, thereby locking the first and second doors 106, 112 and preventing the first and second doors 106, 112 from being opened accidentally. . Note that in this state, the top end 177 of the jack 175 is disengaged from the chamber 171 of the plug 151, and when the first and second doors 106, 112 are pivoted at a small angle by an external force, the plug 151 One of the shoulder portions 173 can interfere with the end of the second door 112 and the end of the side surface 114, preventing the first and second doors 106, 112 from continuing to pivot, so that the plug body 151 is not easily separated from the second door 112. In conjunction with the aperture 116, the first and second doors 106, 112 are further unlocked.

When the safety plug 10 of the present invention utilizes the plug body 151 in the retracted position, the chamber 171 receives the top end 177 of the jack 175. When the plug 151 is displaced to the extended position, the jack 175 is disengaged from the chamber 171 of the plug 151. And the rear end 155 of the plug body 151 causes the plug body 151 to be displaced from the extended position to the retracted position. Even if the spring 100 loses its elasticity due to the increase of the temperature of the fire field, the plug body 151 is still blocked by the jack 175 and remains in the The extended position further ensures that the plug 151 does not accidentally disengage from the coupling aperture 116 of the second door 112.

The basic teachings of this creation have been described, and many extensions and variations will be apparent to those of ordinary skill in the art. For example, the plug body 151 may not include the shoulder portions 173. Thus, after the blocking member 58 is melted, the spring 100 can bias the biasing plug body 151 from the retracted position to the extended position of the second door 112. Chimerism.

The present invention disclosed in the specification is to be considered as illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

10‧‧‧Safety bolt

32‧‧‧Connecting parts

34‧‧‧ wing

36‧‧‧ first surface

38‧‧‧ second surface

40‧‧‧Keyhole

42‧‧‧ Included

44‧‧‧End

46‧‧‧through hole

48‧‧‧Export

50‧‧‧Limited surface

52‧‧‧Combination Department

54‧‧‧Upper end face

55‧‧‧Bottom end face

56‧‧‧ joint surface

58‧‧‧blocking parts

60‧‧ ‧ baffle

62‧‧‧ front surface

66‧‧‧First and second fittings

88‧‧‧ screws

100‧‧‧ Spring

102‧‧‧ first end

104‧‧‧ second end

117‧‧‧Accessories

119‧‧‧

131‧‧‧After

133‧‧‧ Space

135‧‧‧ openings

137‧‧ ‧ pinhole

139‧‧‧Combined pin

151‧‧‧ 栓

153‧‧‧ front end

155‧‧‧ Backend

157‧‧‧The top face

159‧‧‧Flange

171‧‧ ‧ room

173‧‧‧ shoulder

175‧‧‧Pole

177‧‧‧The top end

179‧‧‧ pivot end

X‧‧‧first axial direction

Y‧‧‧second axial

Z‧‧‧third axial

Claims (3)

A safety plug that includes:
a receiving member (117) comprising a front section (119) and a rear section (131) spaced along a first axial direction (X), the receiving member (117) further comprising a space (133), the space (133) extending to Front end (119) end face;
a connecting member (32) is fixed to the front section (119) of the receiving member (117), the connecting member (32) includes a through hole (46) extending to the space (133);
A plug body (151) slidably disposed in the receiving member (117), the plug body (151) including a front end (153) and a direction spaced along the first axial direction (X) and facing the front portion (119) a rear end (155) of the rear section (131), the plug body (151) further includes a chamber (171), the plug body (151) being constricted to the receiving member (117) along the first axial direction (X) Displacement between the retracted position in the space (133) and the extended position outside the space (133) extending out of the receiving member (117);
A spring (100) is disposed in the space (133) of the receiving member (117) and located between the rear end (155) of the plug body (151) and the receiving member (117), and the spring (100) is biased toward the extended position Plug body (151);
A jack (175) is received in the space (133) of the receiving member (117), and the jack (175) includes a top end (177), and the jack (175) is in the abutting position and the non-topping Displacement between positions;
A blocking member (58) is made of a material having a melting point much lower than that of the receiving member (117), the connecting member (32), the plug body (151), the spring (100) and the ram (175), and the blocking member (58) ) in combination with the connector (32) and located in the through hole (46);
When the blocking member (58) is located in the through hole (46), the plug body (151) is located at the retracted position and compresses the spring (100), the jack (175) is located at the non-abutting position, and the top of the jack (175) abuts The end (177) is located in the chamber (171) of the plug body (151),
When the blocking member (58) is melted by the high temperature to open the through hole (46), the spring (100) biasing the plug body (151) is displaced from the retracted position to the extended position in the first axial direction (X),
When the plug body (151) is in the extended position, the top end (177) of the jack (175) is disengaged from the chamber (171), causing the jack (175) to be displaced from the non-abutment position to the top abutment position.
When the jack (175) is in the abutting position, the top end (177) of the jack (175) abuts against the rear end (155) of the plug (151), causing the plug (151) not to be extended from the extended position Retracted position displacement. The safety plug according to claim 1, wherein the chamber (171) of the plug body (151) extends from the rear end (155) to the front end (153), and the receiving member (117) further includes an outer peripheral surface a second pin (Y) extending perpendicular to the first axis (X) of the first axis (X) and located at the rear section (131), the ram (175) further including a pivot away from the abutting end (177) The terminal (179), the spring (100) includes a first end (102) and a second end (104) spaced along the first axial direction (X), including:
A coupling pin (139) is coupled with the two pin holes (137) of the receiving member (117) and pivotally connected to the pivot end (179) of the jack (175), and the first end (102) of the spring (100) Abutting against the rear end (155) of the plug body (151), the second end (104) abuts against the outer peripheral surface of the coupling pin (139), and the ejector pin (175) is in the abutting position according to the longitudinal axis of the coupling pin (139). Pivot between the position and the non-abutment position. A safety plug according to claim 1, wherein the plug body (151) includes a top abutting surface (157) formed at a tapered shape at the front end (153), and the connecting member (32) includes a receiving member (117) a set of joints (42) in the space (133), the through hole (46) extends to the fitting portion (42), and the fitting portion (42) includes two joints formed on the inner circumferential surface of the through hole (46) The face (56), the blocking member (58) includes a baffle (60) including a front surface (62) and a rear surface (64) spaced apart along the first axial direction (X) The rear surface (64) includes first and second fitting portions (66) spaced along the second axial direction (Y), each fitting portion (66) including a connecting end connected to the rear surface (64) ( 76), and a free end (78) away from the rear surface (64), and each of the fitting portions (66) further includes an outer side (68) and an inner side (separated along the second axial direction (Y) ( 70), each fitting portion (66) is located at the connection The distance between the inner side faces (70) at (76) along the second axial direction (Y) is smaller than the distance between the inner side faces (70) of the respective fitting portions (66) at the free end (78), The outer side surfaces (68) at the free ends (78) of the fitting portions (66) are spaced apart from each other along the second axial direction Y by a larger distance than the inner diameter of the through hole (46) of the connecting member (32). The outer side surface (68) of the fitting portion (66) and the free end (78) form a hook body (80), each hook body (80) includes a fitting surface (82), and the blocking member (58) is received. In the through hole (46), and each of the fitting surfaces (82) abuts against the joint surface (56), the abutting surface (157) of the plug body (151) is pressed against the inner side surfaces of the blocking member (58) ( 70), causing the blocking member (58) to be unable to be separated from the connecting member (32).