A temperature control releaser for fireproof doors and windows

Abstract

The invention discloses a temperature control releaser for fireproof doors and windows, comprising a slider, a positioning seat, a positive fireproof lock, a reverse fireproof lock, a spring and a heat-sensitive element. The positive fireproof lock and the reverse fireproof lock made of elastic material are respectively located at the lower side of the slider, the positive fireproof lock is fixed on the slider and located at the rear side of the reverse fireproof lock, the positive fireproof lock and the reverse fireproof lock are assembled to form a cavity, the spring is located in the cavity, the rear end of the spring is pressed by the positive fireproof lock, the front end of the spring is pressed by the reverse fireproof lock, the front end of the reverse fireproof lock is provided with a positioning hole, the positioning seat is fixed at the front end of the slider, the front end of the positioning seat is crossed by a hexagon socket adjustment screw, the heat-sensitive element is embedded in the positioning seat, the rear end of the heat-sensitive element is inserted into the positioning hole, the front end of the heat-sensitive element is tightened by the hexagon socket adjustment screw, and the center lines of the spring, the heat-sensitive element and the hexagon socket adjustment screw are coaxially arranged. The temperature control releaser can achieve a double insurance release effect and ensure the reliability of the fireproof doors and windows.

Description

Technical Field

[0001] The invention relates to a door and window hardware accessory, in particular to a temperature control releaser for fireproof doors and windows. Background Art

[0002] The temperature control releaser is one of the hardware accessories on fireproof doors and windows. The temperature control releaser is connected to the slider, which is installed in the slide slot, and the slide slot is fixed on the door and window frame. When the doors and windows are in normal use, the temperature control releaser is used to position the slider to open the doors and windows. Once a fire occurs, the heat-sensitive element in the temperature control releaser will dissolve or explode at a certain temperature, thereby releasing the positioning of the slider and releasing the slider, driving hardware accessories such as wind braces or connecting rod components, and automatically closing the doors and windows.

[0003] Most of the existing temperature control releasers use a simple structure to position the slider. For example, CN107630615A discloses a temperature control releaser for fireproof windows, which only connects the heat sensitive element and the slider through a simple pull wire. The positioning effect of the slider is poor. In the event of a fire, the release force of the slider is limited, and the release effect of the slider is difficult to guarantee. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a temperature control releaser for fireproof doors and windows in view of the deficiencies of the prior art, which can achieve a double insurance release effect and ensure the reliability of the fireproof doors and windows.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a temperature control releaser for fireproof doors and windows, comprising a slider, a positioning seat, a positive fireproof lock, a reverse fireproof lock, a spring and a heat-sensitive element, the positive fireproof lock and the reverse fireproof lock are both made of elastic materials, the positive fireproof lock and the reverse fireproof lock are respectively located at the lower side of the slider, the positive fireproof lock is fixed on the slider and located at the rear side of the reverse fireproof lock, the positive fireproof lock and the reverse fireproof lock are combined to form a cavity, the spring is located in the cavity, the rear end of the spring is pressed by the positive fireproof lock, the front end of the spring is pressed by the reverse fireproof lock, the front end of the reverse fireproof lock is provided with a positioning hole, the positioning seat is fixed at the front end of the slider, the front end of the positioning seat is crossed by a hexagon socket adjustment screw, the heat-sensitive element is embedded in the positioning seat, the rear end of the heat-sensitive element is inserted into the positioning hole, the front end of the heat-sensitive element is tightened by the hexagon socket adjustment screw, and the center lines of the spring, the heat-sensitive element and the hexagon socket adjustment screw are coaxially arranged.

[0006] The temperature control releaser for fireproof doors and windows is installed on the slide and then installed on the door and window frame through the slide. The slider is connected to the connecting piece of the wind brace or connecting rod assembly. During installation, after determining the installation position of the slider, the damping is adjusted by rotating the hexagonal adjustment screw to compress the heat-sensitive element and the anti-fire lock to achieve different opening angles of the door and window sashes. During normal use, the spring is always in a compressed state. When a fire occurs, the heat-sensitive element dissolves or explodes, and the anti-fire lock loses the pressing force of the heat-sensitive element and rebounds under the action of its own elastic force and the spring elastic force, achieving the double insurance release effect of the releaser and ensuring the reliability of the fireproof doors and windows.

[0007] Preferably, the front end of the positive fire lock is provided with a first inclined surface facing the reverse fire lock, and the reverse fire lock is provided with a second inclined surface matching the inclination of the first inclined surface, and the first inclined surface is fitted with the second inclined surface. The design of the first inclined surface and the second inclined surface can increase the contact area of ​​the positive fire lock and the reverse fire lock after being pressed, so that the positive fire lock and the reverse fire lock are more likely to deform and expand outward in their respective width directions, achieving a better effect of increasing damping.

[0008] Preferably, the positive fireproof lock and the reverse fireproof lock are both made of nylon. Nylon has high strength and good toughness and is the preferred material for making the positive fireproof lock and the reverse fireproof lock. In practical applications, other materials that meet the use requirements can also be selected to make the positive fireproof lock and the reverse fireproof lock.

[0009] Preferably, a positioning column is fixed to the front end of the anti-fire lock, the positioning hole is provided at the front end of the positioning column, a positioning plate is vertically provided at the front end of the slider, a limiting hole matching the positioning column is provided on the positioning plate, and the front end of the positioning column passes through the limiting hole and extends into the positioning seat. The positioning column can achieve a better compression force transmission effect and ensure the damping size. The positioning plate and the limiting hole further limit the positioning column, which can ensure that the anti-fire lock rebounds along a straight path when a fire occurs.

[0010] Preferably, a first semi-cylindrical groove is opened on the inner side of the width direction of the positive fire lock, and a second semi-cylindrical groove is opened on the inner side of the width direction of the reverse fire lock, and the first semi-cylindrical groove and the second semi-cylindrical groove form the cavity.

[0011] Preferably, a positioning pin is fixed at the bottom of the slider, and a socket is provided on the positive fireproof lock, and the positioning pin is tightly inserted into the socket. The positive fireproof lock is fixed to the lower side of the slider by the cooperation of the positioning pin and the socket, which has a simple structure and is easy to assemble.

[0012] Preferably, the cross section of the slide matched with the slider is C-shaped, the outer side of the positive fire lock in the width direction is provided with a first concave guide groove, the outer side of the reverse fire lock in the width direction is provided with a second concave guide groove, the first guide groove and the second guide groove are adapted to the profiles on both sides of the entrance of the slide, after installation, the positive fire lock and the reverse fire lock are embedded in the slide, and the first guide groove and the second guide groove are respectively covered on the outer side of the profiles on both sides of the entrance of the slide. The design of the first guide groove and the second guide groove has both guiding and limiting functions, which is convenient for the installation of the positive fire lock and the reverse fire lock, and can ensure that the reverse fire lock rebounds linearly along the second guide groove in the event of a fire, thereby improving the reliability of the releaser.

[0013] Preferably, the width of the slider is greater than the width of the positive fire lock and the reverse fire lock after assembly, and the width of the slider is greater than the width of the entrance of the chute. After installation, the positive fire lock and the reverse fire lock are located at the lower side of the slider and embedded in the chute, and the slider is exposed in the chute, which has a dustproof effect, can effectively protect the positive fire lock and the reverse fire lock, and can improve the aesthetics of the releaser.

[0014] Preferably, the first guide bar and the second guide bar are respectively provided on both sides of the width direction of the positioning seat, the upper surface of the first guide bar is flush with the lower surface of the first guide groove, the lower surface of the first guide bar is flush with the bottom surface of the positive fire lock, the upper surface of the second guide bar is flush with the lower surface of the second guide groove, and the lower surface of the second guide bar is flush with the bottom surface of the reverse fire lock. After installation, the first guide bar and the second guide bar are respectively embedded in the two sides of the inside of the slide groove. On the basis of the guidance and limitation of the first guide groove and the second guide groove, the first guide bar and the second guide bar can play a further guiding and limiting role, which is convenient for the installation and release of the releaser.

[0015] Preferably, a mounting plate is fixed to the rear end of the slider, a rivet mounting hole is provided on the mounting plate, and a convex arc portion is provided at the junction of the mounting plate and the rear end of the slider. The rivet mounting hole is used to install rivets to rivet the slider to the connecting plate of the wind brace or the connecting rod assembly. The arc portion can improve the strength of the junction between the mounting plate and the slider.

[0016] Compared with the prior art, the present invention has the following advantages: the temperature-controlled releaser for fireproof doors and windows is installed on the door and window frames through a slide groove, and the slider is connected to the connecting piece of the wind brace or the connecting rod assembly. During installation, after determining the installation position of the slider, the damping is adjusted by rotating the hexagonal adjustment screw to compress the heat-sensitive element and the anti-fire lock to achieve different opening angles of the door and window sashes. During normal use, the spring is always in a compressed state. When a fire occurs, the heat-sensitive element dissolves or explodes, and the anti-fire lock loses the pressing force of the heat-sensitive element, and rebounds under the action of its own elastic force and the spring elastic force, thereby achieving a double insurance release effect of the releaser and ensuring the reliability of the fireproof doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the temperature control releaser in the embodiment;

[0018] Figure 2 A bottom view of the temperature control releaser in the embodiment;

[0019] Figure 3 This is a front structural exploded view of the temperature control releaser in the embodiment;

[0020] Figure 4 This is a back structural exploded view of the temperature control releaser in the embodiment;

[0021] Figure 5 This is a rendering of the temperature control releaser after installation on the slideway in the embodiment;

[0022] Figure 6 This is a rendering of the effect of assembling the temperature control releaser and a connecting piece of a wind brace or a connecting rod assembly in the embodiment. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings.

[0024] The temperature control releaser for fireproof doors and windows of embodiment 1 is as follows Figure 1 to Figure 4As shown, it includes a slider 1, a positioning seat 2, a positive fire lock 3, a reverse fire lock 4, a spring 5 and a heat sensitive element 6. In this embodiment, the heat sensitive element 6 adopts a commercially available product. The positive fire lock 3 and the reverse fire lock 4 are both made of nylon. The positive fire lock 3 and the reverse fire lock 4 are respectively located at the lower side of the slider 1. The positive fire lock 3 is fixed on the slider 1 and is located at the rear side of the reverse fire lock 4. The positive fire lock 3 and the reverse fire lock 4 are combined to form a cavity. The spring 5 is located in the cavity. The rear end of the spring 5 is pressed by the positive fire lock 3, the front end of the spring 5 is pressed by the reverse fire lock 4, and the front end of the reverse fire lock 4 is pressed by the reverse fire lock 4. A positioning hole 41 is provided at the end, the positioning seat 2 is fixed at the front end of the slider 1, and a hexagon socket adjusting screw 23 is crossed at the front end of the positioning seat 2. The heat-sensitive element 6 is embedded in the positioning seat 2, and the rear end of the heat-sensitive element 6 is inserted into the positioning hole 41. The front end of the heat-sensitive element 6 is tightened by the hexagon socket adjusting screw 23. The center lines of the spring 5, the heat-sensitive element 6 and the hexagon socket adjusting screw 23 are coaxially arranged. A mounting plate 7 is fixed to the rear end of the slider 1, and a rivet mounting hole 71 is opened on the mounting plate 7. An outwardly convex arc portion 72 is provided at the junction of the mounting plate 7 and the rear end of the slider 1.

[0025] In Example 1, the front end of the positive fire lock 3 is provided with a first inclined surface 31 facing the reverse fire lock 4, and the reverse fire lock 4 is provided with a second inclined surface 42 which is adapted to the inclination of the first inclined surface 31, and the first inclined surface 31 is in contact with the second inclined surface 42; a positioning column 43 is fixed to the front end of the reverse fire lock 4, and a positioning hole 41 is opened at the front end of the positioning column 43, and a positioning plate 11 is vertically arranged at the front end of the slider 1, and a limiting hole 12 which is adapted to the positioning column 43 is opened on the positioning plate 11, and the front end of the positioning column 43 passes through the limiting hole 12 and extends into the positioning seat 2.

[0026] In Embodiment 1, the cross section of the slide 8 matching the slider 1 is C-shaped, a concave first guide groove 32 is provided on the outer side in the width direction of the positive fire lock 3, and a concave second guide groove 44 is provided on the outer side in the width direction of the reverse fire lock 4, the first guide groove 32 and the second guide groove 44 are adapted to the profiles on both sides of the entrance of the slide 8, after installation, the positive fire lock 3 and the reverse fire lock 4 are embedded in the slide 8, and the first guide groove 32 and the second guide groove 44 are respectively covered on the outer side of the profile 81 on both sides of the entrance of the slide 8; the width of the slider 1 is greater than that of the positive fire lock 3 and the reverse fire lock 4, and the first guide groove 32 and the second guide groove 44 are respectively covered on the outer side of the profile 81 on both sides of the entrance of the slide 8; The width of the fire lock 4 after splicing, the width of the slider 1 is greater than the width of the entrance of the slide groove 8; the first guide bar 21 and the second guide bar 22 are respectively provided on both sides of the width direction of the positioning seat 2, the upper surface of the first guide bar 21 is flush with the lower surface of the first guide groove 32, the lower surface of the first guide bar 21 is flush with the bottom surface of the positive fire lock 3, the upper surface of the second guide bar 22 is flush with the lower surface of the second guide groove 44, and the lower surface of the second guide bar 22 is flush with the bottom surface of the reverse fire lock 4. After installation, the first guide bar 21 and the second guide bar 22 are respectively embedded in the two sides of the inside of the slide groove 8.

[0027] The temperature-controlled releaser for fireproof doors and windows of Example 2 is different from that of Example 1 in that, in Example 2, a positioning pin 13 is fixed to the bottom of the slider 1, a socket 33 is provided on the positive fire lock 3, and the positioning pin 13 is tightly inserted into the socket 33; a first semi-cylindrical groove 34 is provided on the inner side in the width direction of the positive fire lock 3, and a second semi-cylindrical groove (not shown in the figure) is provided on the inner side in the width direction of the reverse fire lock 4, and the first semi-cylindrical groove 34 and the second semi-cylindrical groove form a cavity for accommodating the spring 5.

[0028] The above-mentioned temperature-controlled releaser for fireproof doors and windows is installed on the slide groove 8, and is installed on the door and window frame (not shown in the figure) through the slide groove 8. The slider 1 is riveted to the connecting piece 9 of the wind brace or connecting rod assembly through the rivet 73 installed in the rivet mounting hole 71. The mounting piece 91 installed on the connecting piece 9 is used to connect the door and window sashes (not shown in the figure). During installation, after determining the installation position of the slider 1, the damping is adjusted by rotating the hexagonal adjustment screw 23 to tighten the heat-sensitive element 6 and the reverse fire lock 4. The design of the first inclined surface 31 and the second inclined surface 42 can increase the contact area of ​​the positive fire lock 3 and the reverse fire lock 4 after being tightened, so that the positive fire lock 3 and the reverse fire lock 4 are easier to deform and expand to the outside in their respective width directions, so as to achieve a better effect of increasing damping and realize different opening angles of the door and window sashes. The effect diagram of the above-mentioned temperature-controlled releaser for fireproof doors and windows after installation on the slide groove 8 is shown in Figure 5 , and a wind brace or connecting rod assembly after the connecting piece 9 is assembled as shown in the effect diagram Figure 6 .

[0029] During normal use, the spring 5 is always in a compressed state. When a fire occurs, the heat sensitive element 6 dissolves or explodes, and the anti-fire lock 4 loses the compression force of the heat sensitive element 6 and rebounds under the action of its own elastic force and the elastic force of the spring 5, achieving a double insurance release effect of the releaser and ensuring the reliability of the fireproof doors and windows.

Claims

1. A temperature control releaser for fireproof doors and windows, It is characterized in that It includes a slider, a positioning seat, a positive fireproof lock, a negative fireproof lock, a spring and a heat-sensitive element. The positive fireproof lock and the negative fireproof lock are both made of elastic materials. The positive fireproof lock and the negative fireproof lock are respectively located at the lower side of the slider. The positive fireproof lock is fixed on the slider and located at the rear side of the negative fireproof lock. The positive fireproof lock and the negative fireproof lock are assembled to form a cavity. The spring is located in the cavity. The rear end of the spring is pressed by the positive fireproof lock, and the front end of the spring is pressed by the negative fireproof lock. A positioning hole is provided at the front end of the negative fireproof lock. The positioning seat is fixed at the front end of the slider. A hexagonal adjusting screw is traversed at the front end of the positioning seat. The heat-sensitive element is embedded in the positioning seat. The rear end of the heat-sensitive element is inserted into the positioning hole. The front end of the heat-sensitive element is tightened by the hexagonal adjusting screw. The center lines of the spring, the heat-sensitive element and the hexagonal adjusting screw are coaxially arranged. The front end of the positive fireproof lock is provided with a first inclined surface facing the reverse fireproof lock, and the reverse fireproof lock is provided with a second inclined surface matched with the inclination of the first inclined surface, and the first inclined surface is fitted with the second inclined surface. A positioning column is fixed to the front end of the reverse fireproof lock, and the positioning hole is provided at the front end of the positioning column. A positioning plate is vertically provided at the front end of the slider, and a limiting hole matched with the positioning column is provided on the positioning plate. The front end of the positioning column passes through the limiting hole and extends into the positioning seat. A first semi-cylindrical groove is provided on the inner side in the width direction of the positive fireproof lock, and the width direction of the reverse fireproof lock is provided on the inner side. A second semi-cylindrical groove is opened on the inner side, the first semi-cylindrical groove and the second semi-cylindrical groove form the cavity, the cross-section of the slide matching the slider is C-shaped, the outer side of the width direction of the positive fire lock is opened with a concave first guide groove, the outer side of the width direction of the reverse fire lock is opened with a concave second guide groove, the first guide groove and the second guide groove are adapted to the profiles on both sides of the entrance of the slide, after installation, the positive fire lock and the reverse fire lock are embedded in the slide, and the first guide groove and the second guide groove are respectively covered on the outer sides of the profiles on both sides of the entrance of the slide.

2. A temperature control releaser for fireproof doors and windows according to claim 1, It is characterized in that The positive fireproof lock and the reverse fireproof lock are both made of nylon.

3. A temperature control releaser for fireproof doors and windows according to claim 1, It is characterized in that A positioning pin is fixed at the bottom of the sliding block, a plug hole is provided on the positive fireproof lock, and the positioning pin is tightly inserted into the plug hole.

4. A temperature control releaser for fireproof doors and windows according to claim 1, It is characterized in that The width of the sliding block is greater than the width of the positive fireproof lock and the reverse fireproof lock after being assembled, and the width of the sliding block is greater than the width of the entrance of the sliding groove.

5. A temperature control releaser for fireproof doors and windows according to claim 1, It is characterized in that A first guide bar and a second guide bar are respectively provided on both sides of the width direction of the positioning seat, the upper surface of the first guide bar is flush with the lower surface of the first guide groove, the lower surface of the first guide bar is flush with the bottom surface of the positive fire lock, the upper surface of the second guide bar is flush with the lower surface of the second guide groove, and the lower surface of the second guide bar is flush with the bottom surface of the reverse fire lock. After installation, the first guide bar and the second guide bar are respectively embedded in the two sides of the inside of the slide groove.

6. A temperature control releaser for fireproof doors and windows according to claim 1, It is characterized in that A mounting plate is fixed to the rear end of the slider, a rivet mounting hole is provided on the mounting plate, and an outwardly convex arc portion is provided at the connection between the mounting plate and the rear end of the slider.

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