Fireproof door closer and sliding groove end sealing structure thereof

Abstract

The utility model relates to a sliding chute end sealing structure of a fireproof door closer, which comprises a plug used for being plugged into the end part of a sliding chute body for end sealing, the plug comprises a plugging plate, a surrounding plate and a connecting plate, the connecting plate and the surrounding plate are fixedly connected with the plugging plate, and a groove body for a wiring terminal and a fixed column to be arranged in is enclosed on the same side of the plugging plate; a wire passing notch groove is formed in one side of the plugging plate, a wire passing through hole corresponding to a wire stretching-out opening of a wiring terminal is formed in the middle of the plugging plate, the fixing column is fixed to the connecting plate, and a fixing hole corresponding to an installation hole in the end of the sliding groove body is formed in the connecting plate. The utility model has the advantages that the plug is matched with the end cover, the end cover can effectively shield the wire and the outer end of the plug, the wire can be prevented from being exposed and is safer, the structure is compact and attractive, and different wiring modes, whether the end cover is mounted or not and the mounting direction of the end cover can be selected according to the requirements of different clients and application environments; and different configurations are matched according to requirements, so that the universality is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of building fire-fighting equipment, and in particular relates to a fire door closer and a slide groove sealing structure thereof. Background Art

[0002] Fire door closers are primarily used on fire doors in various public and commercial settings, and their components have high fire safety requirements. Intelligent fire door closers offer remote door opening and closing functions and signal feedback, requiring connections for power or signal control cables. Exposed power or signal control cables are aesthetically pleasing and more susceptible to damage, posing a higher risk of electrical leakage. Therefore, it's essential to incorporate structural features at the ends of the fire door closer's chute to shield these cables.

[0003] Furthermore, fire doors are relatively heavy, so after installation, fire door closers must be able to withstand certain external forces without deformation to ensure smooth operation of the various mechanisms when the door is opened and closed. Furthermore, the sealing requirements for the ends of the fire door closer chute may vary depending on the installation environment, necessitating the provision of a sealing structure that can meet these diverse needs. Utility Model Content

[0004] The utility model provides a fire door closer and a slide groove sealing structure thereof, aiming to overcome the above-mentioned deficiencies in the prior art.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a slide slot end sealing structure of a fire door closer, which includes a plug for inserting into the end of the inner cavity of the slide slot body to seal the end, the plug includes a rectangular sealing plate, a U-shaped enclosure plate and a rectangular connecting plate, the connecting plate and the enclosure plate are fixedly connected to the sealing plate and form a slot body for installing the wiring terminal and the fixing column on the same side of the sealing plate, the sealing plate is located on the side edge of the opening side of the slide slot body and is provided with a wire passing notch groove, the middle part of the sealing plate is provided with a wire passing hole corresponding to the wire extension port of the wiring terminal, the fixing column is fixed to the connecting plate and a fixing hole corresponding to the mounting hole at the end of the slide slot body is formed on the connecting plate.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, one end of the enclosure is fixedly connected to the blocking plate, and the other end is spaced apart from the blocking plate and bent toward the outside of the trough body to form an auxiliary fixing spring for pressing the inner cavity wall of the chute body.

[0008] Furthermore, a gap is reserved between the side of the auxiliary fixing spring piece facing the connecting plate and the connecting plate.

[0009] Furthermore, a side surface of the blocking plate located inside the slot body is provided with a limiting convex strip for limiting the connection terminal.

[0010] Furthermore, it also includes an end cover, which is a shell with a hollow cavity. The end cover is detachably connected to the sealing plate through a side wall. The side wall of the end cover away from the end of the slide body is cut with a dotted line to form an easily detachable piece. After the easily detachable piece is removed, a wire passage is formed for the wire to pass through.

[0011] Furthermore, the end cover and the plug are detachably connected via mutually cooperating clamping strips and clamping slots.

[0012] Furthermore, the clamping strip is provided on the side wall of the end cover, and the clamping groove is provided on the outer side wall of the blocking plate.

[0013] Furthermore, the card strip is a T-shaped convex strip, the card slot is a slot with both ends being T-shaped, and the cross section of the card slot is a dovetail shape that is narrow on the outside and wide on the inside.

[0014] Furthermore, it also includes an incoming wire and an outgoing wire, the incoming wire is electrically connected to the circuit board of the chute body, and the incoming wire and the outgoing wire are electrically connected through the wiring terminal.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model adopts a plug inserted into the end of the slide body to seal the end. One side of the sealing plate of the plug is provided with a wire notch groove for the wire to be connected and extend outward. The middle part is provided with a wire through hole that cooperates with the wiring terminal. At the same time, the wiring terminal can also be installed in the plug. Therefore, the plug structure can realize multiple functions, including the function of selecting different wire connection methods and the function of cooperating with the mounting hole after being inserted into the slide body to enhance the deformation resistance of the slide body.

[0017] The slide chute end sealing structure provided by the utility model also includes an end cover that is detachably matched with the plug. The end cover can effectively shield the wires and the outer end of the plug, which not only prevents the wires from being exposed and is safer, but also has a compact and beautiful structure. At the same time, according to the needs of different customers and application environments, different wiring methods can be selected, whether to install the end cover and the installation direction of the end cover can be selected, and different configurations can be matched according to needs, with strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of a slideway end sealing structure of a fire door closer provided by the utility model;

[0019] Figure 2 for Figure 1 Axonometric drawing of the middle plug connected to the end cover and the wiring installed in the plug;

[0020] Figure 3 for Figure 2 Axonometric view of the middle end cover;

[0021] Figure 4 for Figure 2 Axonometric drawing of the middle plug;

[0022] Figure 5 This is a schematic diagram of the wires passing through the wire opening after the easy-to-remove piece of the end cover is removed;

[0023] Figure 6 This is a schematic diagram of the fire door closer's slideway sealing structure with wires connected to it without connecting the terminals.

[0024] Figure 7 This is a schematic diagram of the fire door closer's slideway end capping structure connecting the incoming wires to the outgoing wires via the wiring terminals;

[0025] Figure 8 for Figure 7 An enlarged view of the left end of the chute end capping structure is shown.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Slide body; 2. Plug; 3. Terminal block; 4. End cap; 5. Incoming wire; 6. Outgoing wire; 10. Mounting hole; 20. Blocking plate; 21. Enclosure; 22. Connecting plate; 201. Wire notch; 202. Positioning rib; 203. Clamping slot; 211. Auxiliary fixing spring; 221. Fixing column; 401. Easy-to-remove plate; 402. Clamping strip. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] In the description of the present invention, if terms indicating directions such as "up", "down", "left", "right", "top", "bottom", "inside" and "outside" are used, the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0030] like Figures 1 to 8As shown, the utility model provides a slide slot sealing structure for a fire door closer, which includes a plug 2 for inserting into the end of the inner cavity of the slide slot body 1 for sealing, the plug 2 includes a rectangular sealing plate 20, a U-shaped enclosure 21 and a rectangular connecting plate 22, the connecting plate 22 and the enclosure 21 are both fixedly connected to the sealing plate 20 and form a slot body for installing the wiring terminal 3 and the fixing column 221 on the same side of the sealing plate 20, the sealing plate 20 is located on the side edge of the opening side of the slide slot body 1 and is provided with a wire passing notch 201, the middle part of the sealing plate 20 is provided with a wire passing hole corresponding to the wire extension port of the wiring terminal 3, the fixing column 221 is fixed on the connecting plate 22 and a fixing hole corresponding to the mounting hole 10 at the end of the slide slot body 1 is formed on the connecting plate 22.

[0031] It should be noted that the plug is usually made of hard plastic, but can also be made of metal or metal-plastic composite materials; after the plug is inserted into the slide body, its fixing hole is aligned with the mounting hole of the slide body. When leaving the factory, the fixing hole and the mounting hole only need to be aligned, and no screws need to be locked. At this time, the plug and the slide body rely on elastic compression to achieve relative fixation of each other's positions (friction effect). When the product is delivered to the construction site, the screw locking operation is performed when it is installed on the door frame.

[0032] In one embodiment of the present invention, one end of the enclosure 21 is fixedly connected to the sealing plate 20, and the other end is spaced apart from the sealing plate 20 and bent toward the outside of the trough body to form an auxiliary fixing spring 211 for pressing the inner cavity wall of the chute body 1.

[0033] In an embodiment of the present invention, a gap is reserved between the side of the auxiliary fixing spring piece 211 facing the connecting plate 22 and the connecting plate 22 .

[0034] It should be noted that the auxiliary fixing spring is the free end of the enclosure, which provides a restoring force through the elasticity of the material itself and presses the inner wall of the slide body, thereby realizing the initial positioning and fixation of the plug in the slide, ensuring that the plug is not easy to fall out after being assembled into the slide body.

[0035] In one embodiment of the present invention, a limiting ridge 202 for limiting the position of the connection terminal 3 is provided on the side surface of the blocking plate 20 located inside the slot.

[0036] It should be noted that the limiting ridges and the remaining structures in the slot body can cooperate to form an installation slot for the wiring terminal to be installed and fixed in a limited position, which can ensure that the position of the wiring terminal is relatively fixed after installation and will not shake in the slot body.

[0037] In one embodiment of the present invention, an end cover 4 is further included. The end cover 4 is a shell with a hollow cavity. The end cover 4 is detachably connected to the blocking plate 20 through a side wall. A dotted line is cut on the side wall of the end cover 4 away from the end of the chute body 1 to form an easily detachable piece 401. After the easily detachable piece 401 is removed, a wire passage is formed for the wire to pass through.

[0038] In other words, the end cover is designed with a pre-opening design. When the wiring position is not inside the end cover, the pre-opening position on the end cover can be opened and the wires can pass through.

[0039] In one embodiment of the present invention, the end cover 4 and the plug are detachably connected via a clip 402 and a clip slot 203 that cooperate with each other.

[0040] In one embodiment of the present invention, the clamping strip 402 is provided on the side wall of the end cover 4 , and the clamping slot 203 is provided on the outer side wall of the blocking plate 20 .

[0041] In one embodiment of the present invention, the clamping strip 402 is a T-shaped convex strip, the clamping slot 203 is a slot with both ends being T-shaped, and the cross section of the clamping slot 203 is a dovetail shape with a narrow outer side and a wide inner side.

[0042] It should be noted that if Figures 2 to 4 and Figure 8 As shown, the end faces of the end cap and the plug are designed with matching dovetail grooves (card slots) and convex strips (card strips), which slide in from the front during installation and have a good locking function; the end portion is designed with a matching concave and convex platform for stopping; the front end of the dovetail convex platform is designed with a guide structure (pointed head) to assist in sliding into the dovetail groove. It is understandable that the positions of the card strip and the card slot can also be swapped, that is, the card strip is provided on the plug, and the card slot is provided on the end cap. In addition to the detachable connection in the form of a card strip and a card slot, the end cap and the plug can also be detachably connected in other forms, such as through a mutually cooperating permanent magnetic attraction structure or a snap button structure.

[0043] In one embodiment of the present invention, an incoming wire 5 and an outgoing wire 6 are further included. The incoming wire 5 is electrically connected to the circuit board of the chute body 1 , and the incoming wire 5 and the outgoing wire 6 are electrically connected through the wiring terminal 3 .

[0044] It should be noted that, when the terminal block is not installed, the incoming wire and the outgoing wire can be the same wire.

[0045] The utility model also provides a fire door closer, which has the above-mentioned slide groove end sealing structure.

[0046] like Figures 6 to 8As shown, plugs and end caps are used at both ends of the door closer's chute. Depending on market demand, various configurations are possible: without end caps and without wiring terminals; with end caps and wiring terminals; with end caps but no wiring terminals, allowing for direct wiring; and with end caps and wiring terminals. The plugs are installed at both ends of the chute body, and their design ensures they are universal for both left and right parts. The end caps are installed within the plugs, regardless of front or back, allowing for installation in the desired direction.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A slide groove sealing structure for a fire door closer, characterized in that: The invention relates to a plug (2) for inserting into the end of the inner cavity of the chute body (1) to seal the end, wherein the plug (2) comprises a rectangular sealing plate (20), a U-shaped enclosure (21) and a rectangular connecting plate (22), wherein the connecting plate (22) and the enclosure (21) are fixedly connected to the sealing plate (20) and form a slot body for the wiring terminal (3) and the fixing column (221) to be installed on the same side of the sealing plate (20), wherein the sealing plate (20) is provided with a wire-passing notch (201) on the side edge of the opening side of the chute body (1), and a wire-passing through hole corresponding to the wire extension opening of the wiring terminal (3) is provided in the middle of the sealing plate (20), and the fixing column (221) is fixed on the connecting plate (22) and a fixing hole corresponding to the mounting hole (10) at the end of the chute body (1) is formed on the connecting plate (22).

2. The slide groove sealing structure of a fire door closer according to claim 1, characterized in that: One end of the enclosure plate (21) is fixedly connected to the blocking plate (20), and the other end is spaced apart from the blocking plate (20) and bent toward the outside of the trough body to form an auxiliary fixing spring (211) for pressing the inner cavity wall of the chute body (1).

3. The slide groove sealing structure of a fire door closer according to claim 2, characterized in that: A gap is reserved between the side of the auxiliary fixing spring sheet (211) facing the connecting plate (22) and the connecting plate (22).

4. The slide groove sealing structure of a fire door closer according to claim 1, characterized in that: The side surface of the blocking plate (20) located inside the slot body is provided with a limiting convex strip (202) for limiting the connection terminal (3).

5. The slide groove sealing structure of a fire door closer according to claim 1, characterized in that: The device further comprises an end cover (4), the end cover (4) being a shell having a hollow cavity, the end cover (4) being detachably connected to the blocking plate (20) via a side wall, and a side wall of the end cover (4) away from the end of the chute body (1) being cut with a dotted line to form an easily detachable piece (401), and the easily detachable piece (401) being detached to form a wire passage for the wire to pass through.

6. The slide groove sealing structure of a fire door closer according to claim 5, characterized in that: The end cover (4) and the plug (2) are detachably connected via a clip (402) and a clip slot (203) that cooperate with each other.

7. The slide groove sealing structure of a fire door closer according to claim 6, characterized in that: The clamping strip (402) is provided on the side wall of the end cover (4), and the clamping groove (203) is provided on the outer side wall of the blocking plate (20).

8. The slide groove sealing structure of a fire door closer according to claim 7, characterized in that: The clamping strip (402) is a T-shaped convex strip, the clamping slot (203) is a slot with both ends being T-shaped, and the cross section of the clamping slot (203) is a dovetail shape with a narrow outer side and a wide inner side.

9. The slide groove sealing structure of a fire door closer according to any one of claims 1 to 8, characterized in that: It also includes an incoming wire (5) and an outgoing wire (6), wherein the incoming wire (5) is electrically connected to the circuit board of the chute body (1), and the incoming wire (5) and the outgoing wire (6) are electrically connected via the wiring terminal (3).

10. A fire door closer, characterized in that: A chute end sealing structure according to any one of claims 1 to 9.

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