Fixing device for decoration suspended ceiling

Abstract

The utility model relates to a fixing device, in particular to a decoration suspended ceiling fixing device which comprises a main sleeve and an inner sleeve device which are in sliding fit, the inner sleeve device comprises a reset sleeve, a firing pin sleeve which is in sliding fit with the reset sleeve is arranged in the reset sleeve, and a firing pin assembly which is used for assembling a firing pin and is in sliding fit with the firing pin sleeve is arranged in the firing pin sleeve. The firing pin assembly is provided with a limiting pin for limiting the reciprocating motion of the firing pin assembly and the firing pin sleeve, the limiting pin penetrates through the firing pin assembly and the firing pin sleeve, and a first blocking and connecting part matched with the limiting pin is arranged in the main sleeve. Compared with a common fixator, the fixing device has the advantages that the limiting pin is arranged on the firing pin assembly, the limiting pin is matched with the first blocking connection portion on the inner wall of the main sleeve, one decoration sleeve can be omitted, assembly is more convenient, and the fixing device further has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

Description

Technical Field

[0001] This utility model relates to a fastener, and more particularly to a ceiling fastener for decoration. Background Technology

[0002] Ceiling fasteners are a common tool in decoration. When in use, the nail is placed at the end, and the main body is pressed towards the carrier. The firing spring inside the fastener then drives the nail into the carrier. For example, the patent with announcement number CN 210148005 U, named "Power Adjustment and Automatic Slag Removal and Heat Dissipation Axial Nail Gun", also has this structure. However, the firing seat and firing pin sleeve in this patent need to reciprocate within the outer shell, and their movement needs to be restricted within the outer shell. This patent has a main sleeve on the outside and a matching pin. The main sleeve also has many guide grooves for matching the pin. The addition of the guide grooves makes the main sleeve unsightly, so a decorative sleeve is also set on the outside of the main sleeve, making the structure complex and difficult to process. How to improve the structural relationship between the firing seat, firing pin sleeve and main sleeve is the technical problem we need to solve now. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a ceiling fixing device for decoration.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a ceiling fixing device, characterized in that it includes a slidingly fitted main sleeve and an inner sleeve device. The inner sleeve device includes a reset sleeve, and a firing pin sleeve that slides within the reset sleeve. The firing pin sleeve contains a firing pin assembly for assembling a firing pin and that slides within the firing pin sleeve. The firing pin assembly has a limiting pin that limits the reciprocating motion of the firing pin assembly and the firing pin sleeve. The limiting pin passes through the firing pin assembly and the firing pin sleeve. The main sleeve has a first stop portion that engages with the limiting pin. The firing pin assembly and the firing pin sleeve are limited by the engagement of the limiting pin and the first stop portion.

[0005] The firing pin assembly is provided with a mounting hole for installing a limiting pin, and the firing pin sleeve is provided with a limiting groove that mates with the mounting hole. The firing pin sleeve and the firing pin assembly achieve limited reciprocating motion through the cooperation of the limiting pin and the limiting groove.

[0006] The reset sleeve is provided with a reset spring that forces the limiting pin to engage with the first stop joint.

[0007] The firing pin sleeve includes a base for reciprocating motion of the firing pin assembly, and a firing tube for reciprocating motion of the firing pin is provided on one side of the base. The base and the firing tube are fixedly assembled by threads.

[0008] The firing pin assembly is equipped with a firing pin, and the firing pin assembly is provided with a limiting hole for mounting the firing pin. The firing pin is provided with a first through hole fixed in the limiting hole. The firing pin assembly is provided with a mating hole that matches the first through hole. The firing pin is fixed and limited at the limiting hole through the mating hole and the first through hole, and through the mating of the knurled pin.

[0009] The firing pin has a first straight section and a second straight section. Between the first straight section and the second straight section, there is a first transition section and a second transition section with an arc-shaped structure. The firing pin passes through the first straight section, the first transition section, the second transition section and the second straight section in sequence, forming a cross-sectional diameter that gradually decreases from the first straight section to the second straight section.

[0010] The reset sleeve is provided with a firing pin tube for installing the pin body. One end of the firing pin tube is sleeved on the firing pin assembly. The reset sleeve is provided with a second stop part for limiting the firing pin tube. The reset sleeve is provided with a pin tube fixing nut for installing the firing pin tube. The reset sleeve is provided with a heat insulation sleeve. The outer end of the reset sleeve is provided with a dust cover. The dust cover is fixed to the heat insulation sleeve on the pin tube fixing nut by means of threads.

[0011] The reset sleeve is provided with several second through holes.

[0012] The main sleeve is provided with several third through holes.

[0013] The firing pin assembly is provided with an elastic retainer for linking the firing pin sleeve. The firing pin sleeve is provided with a groove that engages with the elastic retainer. One side of the groove is provided with a guide groove that communicates with the groove and engages with the firing pin assembly and the firing pin sleeve in sliding cooperation. A firing seat is provided on one side of the main sleeve and on the other side relative to the inner sleeve device. The firing seat is provided with a firing spring that forces the firing pin assembly to move toward the inner sleeve device. The firing seat is also provided with a guide part that forces the elastic retainer to disengage from the groove. When the firing pin sleeve and the firing pin assembly move to the guide part, the firing pin assembly fires through the engagement of the elastic retainer and the guide part, and through the engagement of the firing spring.

[0014] The beneficial effects of this utility model are as follows: This utility model redesigns the sliding fit relationship between the firing pin sleeve and the reset sleeve. By setting a limiting pin on the firing pin assembly and engaging the limiting pin with the first stop part on the inner wall of the main sleeve, compared with ordinary fixers, one decorative sleeve is eliminated, and assembly is more convenient. This utility model also features simple structure, convenient processing and easy assembly, and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention in its initial state;

[0018] Figure 4 This is a cross-sectional view of the present invention when the firing base is pushed toward the carrier after the nail body is inserted;

[0019] Figure 5 This is a cross-sectional view of the present invention when the firing pin is driven into the nail body;

[0020] Figure 6 This is an exploded view of the structure of the firing pin assembly and firing pin sleeve of this utility model.

[0021] Figure 7 This is a schematic diagram of the main sleeve of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the reset sleeve of this utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the base of this utility model;

[0024] Figure 10 This is a schematic diagram of the firing mechanism of this utility model;

[0025] Figure 11 This is a partial structural diagram of the firing pin of this utility model. Detailed Implementation

[0026] like Figures 1-11 As shown, a ceiling fixture includes a slidingly fitted main sleeve 100 and an inner sleeve device 200. The inner sleeve device 200 includes a reset sleeve 210, a firing pin sleeve 220 that slides within the reset sleeve 210, and a firing pin assembly 230 that assembles a firing pin 240 and slides within the firing pin sleeve 220. The firing pin assembly 230 has a limiting pin 250 that limits the reciprocating motion of the firing pin assembly 230 and the firing pin sleeve 220. The limiting pin 250 passes through the firing pin assembly 230 and the firing pin sleeve 220. The main sleeve 100 has a first stop portion 110 that engages with the limiting pin 250. The firing pin assembly 230 and the firing pin sleeve 220 are limited by the engagement of the limiting pin 250 with the first stop portion 110. The limiting pin 250 can be designed as a round pin. The usage method is detailed below.

[0027] The firing pin assembly 230 is provided with a mounting hole 231 for installing a limiting pin 250, and the firing pin sleeve 220 is provided with a limiting groove 221 that cooperates with the mounting hole 231. The firing pin sleeve 220 and the firing pin assembly 230 achieve limited reciprocating motion through the cooperation of the limiting pin 250 and the limiting groove 221.

[0028] The reset sleeve 210 is provided with a reset spring 211 that forces the limiting pin 250 to engage with the first stop part 110. The reset spring 211 gives the reset sleeve 210 an elastic restoring force. The firing pin sleeve 220 is provided with a third stop part 226 to prevent the firing pin sleeve 220 from disengaging from the bottom of the reset sleeve 210. The reset sleeve 210 is provided with a stop part 214 that engages with the third stop part 226.

[0029] The firing pin sleeve 220 includes a base 222 for reciprocating motion of the firing pin assembly 230. A firing tube 223 for reciprocating motion of the firing pin 240 is provided on one side of the base 222. The base 222 and the firing tube 223 are fixedly assembled by threads. Preferably, the firing pin sleeve 220 is designed as a split structure. Commercially available pins are generally available in 7.3mm and 8.5mm sizes, and firing these two sizes of pins typically requires two different sizes of retainers. This application designs the firing pin sleeve 220 as a split structure. The structure allows for easy removal of the firing pin tubes 260 and the pin tube retaining rings 261 at the end of the reset sleeve 210. The firing tube 223 can then be unscrewed and replaced with firing pin tubes 260 and 223 of the corresponding specifications. In short, the specification conversion of the firing pin tubes 260 and 223 enables the fixation of both 7.3mm and 8.5mm pin bodies 300 to be covered by a single retainer. This application is not limited to 7.3mm and 8.5mm specifications; it can also be designed to accommodate other specifications in the future, making it highly practical.

[0030] The firing pin assembly 230 is equipped with a firing pin 240. The firing pin assembly 230 is provided with a limiting hole 232 for mounting the firing pin 240. The firing pin 240 is provided with a first through hole 241 fixed in the limiting hole 232. The firing pin assembly 230 is provided with a mating hole 233 that mates with the first through hole 241. The firing pin 240 is fixed and limited at the limiting hole 232 through the mating hole 233 and the mating hole 233, and through the mating with a knurled pin 234. Ordinary firing pins 240 are fixed and limited by round pins, which are easy to fall off during disassembly and assembly. Replacing the round pin with a knurled pin 234 improves the connection stability between the firing pin 240 and the firing pin assembly 230 and enhances its practicality.

[0031] The firing pin 240 has a first straight section 242 and a second straight section 243. Between the first straight section 242 and the second straight section 243, there are a first transition section 244 and a second transition section 245 with an arc-shaped structure. The firing pin 240 passes through the first straight section 242, the first transition section 244, the second transition section 245 and the second straight section 243 in sequence, forming a cross-sectional diameter that gradually decreases from the first straight section 242 to the second straight section 243. In this application, the end of the firing pin 240 is preferably designed in a pagoda shape, which makes the firing pin 240 more impact-resistant, prevents breakage, greatly reduces the wear rate of the firing pin 240, and has strong practicality.

[0032] The reset sleeve 210 contains a firing pin tube 260 for mounting the pin body 300. One end of the firing pin tube 260 is sleeved on the firing pin assembly 230. The reset sleeve 210 contains a second stop 212 for limiting the firing pin tube 260. The reset sleeve 210 contains a pin tube fixing nut 270 for mounting the firing pin tube 260. The reset sleeve 210 contains a heat insulation sleeve 280. The outer end of the reset sleeve 210 contains a dust cover 290. The dust cover 290 fixes the heat insulation sleeve 280 to the pin tube fixing nut 270 by threads. For easy assembly, a pin tube fixing retaining ring 261 can be set at the second stop 212. The pin tube fixing nut 270 is also fixed to the end of the reset sleeve 210 by threads. The heat insulation sleeve 280, pin tube fixing nut 270, dust cover 290, firing pin tube 260 and reset sleeve 210 are mutually limiting and fixed, so they are linked.

[0033] The reset sleeve 210 is provided with several second through holes 213, which connect the inside and outside of the reset sleeve 210 and are mainly used for noise reduction and slag removal.

[0034] The main sleeve 100 is provided with several third through holes 120, which connect the inside and outside of the main sleeve 100 and are mainly used for heat dissipation and slag removal. After the nail body 300 explodes in the nail launching tube 260, the heat, gunpowder residue and gas will move backward with the main sleeve 100 and push the firing seat 130.

[0035] The firing pin assembly 230 is provided with an elastic retainer 235 for linking the firing pin sleeve 220. The firing pin sleeve 220 is provided with a groove 224 that engages with the elastic retainer 235. One side of the groove 224 is provided with a guide groove 225 that communicates with the groove 224 and engages with the firing pin assembly 230 and the firing pin sleeve 220 in a sliding fit. A firing seat 130 is provided on one side of the main sleeve 100 and on the other side relative to the inner sleeve device 200. The firing seat 130 contains a firing spring 131 that forces the firing pin assembly 230 to move toward the inner sleeve device 200. The firing seat 130 is also provided with a guide part 132 that forces the elastic clip 235 to disengage from the slot 224. When the firing pin sleeve 220 and the firing pin assembly 230 move to the guide part 132, the firing pin assembly 230 is fired through the cooperation of the elastic clip 235 with the guide part 132 and through the cooperation of the firing spring 131. A spring structure 236 is provided on the back of the elastic clip 235. The handle is fixedly connected to the main sleeve 100 by means of threads. The firing seat 130 can be connected to external devices such as gun-type connectors. The firing seat 130 is the main force-generating part.

[0036] How to use:

[0037] In the initial state, the firing pin assembly 230 and the firing pin sleeve 220 are linked together by the cooperation of the elastic retainer 235 and the slot 224;

[0038] When nailing is required, insert the nail body 300 into the nail firing tube 260, position the dust cover 290 towards the carrier (the carrier refers to the wall panel), and then hold the firing base 130, pressing it against the carrier. Since the main sleeve 100 and the inner sleeve device 200 are in sliding fit, the firing base 130 and the main sleeve 100 will retract towards the inner sleeve device 200. During this retraction, because the nail body 300 presses against the firing pin sleeve 220, and the firing pin sleeve 220 and the firing pin assembly 230 are linked by the elastic retainer 235 and the slot 224, the firing pin sleeve 220 and the firing pin assembly 230 move closer to the firing base 130. Simultaneously, the firing spring 131 is compressed and deformed. When the elastic retainer 235... When the firing pin 240 reaches the guide portion 132 of the firing base 130, the guide portion 132 causes the elastic clip 235 to disengage from the slot 224. At this time, the firing pin assembly 230, with the help of the firing spring 131, is launched towards the carrier, causing the firing pin 240 to violently impact the nail body 300. The nail body 300 is then driven into the carrier from the firing pin tube 260. Subsequently, the retainer is moved away, and the firing pin sleeve 220 is reset under the action of the return spring 211. During the reset process, the cooperation between the limit pin 250 and the first stop portion 110 causes the firing pin assembly 230 to reset, and the elastic clip 235 is re-engaged into the slot 224. The firing pin sleeve 220 and the firing pin assembly 230 are linked again, waiting for the next round of operation.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A ceiling fastener for decoration, characterized in that, The device includes a slidingly fitted main sleeve (100) and an inner sleeve assembly (200). The inner sleeve assembly (200) includes a reset sleeve (210), within which a firing pin sleeve (220) is provided, which is slidably fitted to the reset sleeve (210). The firing pin sleeve (220) contains a firing pin assembly (230) for assembling a firing pin (240) and which is slidably fitted to the firing pin sleeve (220). The firing pin assembly (230) has a counter-firing mechanism. A limiting pin (250) limits the reciprocating motion of the needle assembly (230) and the firing pin sleeve (220). The limiting pin (250) passes through the firing pin assembly (230) and the firing pin sleeve (220). The main sleeve (100) is provided with a first stop (110) that cooperates with the limiting pin (250). The firing pin assembly (230) and the firing pin sleeve (220) are limited by the cooperation between the limiting pin (250) and the first stop (110).

2. The ceiling fastener as described in claim 1, characterized in that, The firing pin assembly (230) is provided with a mounting hole (231) for installing a limiting pin (250), and the firing pin sleeve (220) is provided with a limiting groove (221) that cooperates with the mounting hole (231). The firing pin sleeve (220) and the firing pin assembly (230) achieve limited reciprocating motion through the cooperation of the limiting pin (250) and the limiting groove (221).

3. A ceiling fastener as described in claim 2, characterized in that, The reset sleeve (210) is provided with a reset spring (211) that forces the limiting pin (250) to engage with the first stop (110).

4. A ceiling fastener as described in claim 1, characterized in that, The firing pin sleeve (220) includes a base (222) for reciprocating motion of the firing pin assembly (230), and a firing tube (223) for reciprocating motion of the firing pin (240) is provided on one side of the base (222). The base (222) and the firing tube (223) are fixedly assembled by means of threads.

5. A ceiling fastener as described in claim 4, characterized in that, The firing pin assembly (230) is equipped with a firing pin (240). The firing pin assembly (230) is provided with a limiting hole (232) for mounting the firing pin (240). The firing pin (240) is provided with a first through hole (241) fixed in the limiting hole (232). The firing pin assembly (230) is provided with a mating hole (233) that matches the first through hole (241). The firing pin (240) is fixedly limited at the limiting hole (232) through the mating hole (233) of the first through hole (241) and the mating hole (233) and through the mating of the knurled pin (234).

6. A ceiling fastener as described in claim 5, characterized in that, The firing pin (240) has a first straight section (242) and a second straight section (243). Between the first straight section (242) and the second straight section (243), there is a first transition section (244) and a second transition section (245) with an arc-shaped structure. The firing pin (240) passes through the first straight section (242), the first transition section (244), the second transition section (245) and the second straight section (243) in sequence, forming a cross-sectional diameter that gradually decreases from the first straight section (242) to the second straight section (243).

7. A ceiling fastener as described in claim 1, characterized in that, The reset sleeve (210) is provided with a firing pin tube (260) for installing the pin body (300). One end of the firing pin tube (260) is sleeved on the firing pin assembly (230). The reset sleeve (210) is provided with a second stop (212) for limiting the firing pin tube (260). The reset sleeve (210) is provided with a pin tube fixing nut (270) for installing the firing pin tube (260). The reset sleeve (210) is provided with a heat insulation sleeve (280) on the outside. The outer end of the reset sleeve (210) is provided with a dust cover (290). The dust cover (290) fixes the heat insulation sleeve (280) to the pin tube fixing nut (270) by means of threads.

8. A ceiling fastener as described in claim 7, characterized in that, The reset sleeve (210) is provided with several second through holes (213).

9. A ceiling fastener as described in claim 1, characterized in that, The main sleeve (100) is provided with several third through holes (120).

10. A ceiling fastener as described in any one of claims 1 to 9, characterized in that, The firing pin assembly (230) is provided with an elastic retainer (235) for linking the firing pin sleeve (220). The firing pin sleeve (220) is provided with a groove (224) that engages with the elastic retainer (235). One side of the groove (224) is provided with a guide groove (225) that communicates with the groove (224) and engages with the firing pin assembly (230) and the firing pin sleeve (220). A firing seat (130) is provided on one side of the main sleeve (100) and on the other side relative to the inner sleeve device (200). The firing seat (130) is provided with a firing spring (131) that forces the firing pin assembly (230) to move toward the inner sleeve device (200). The firing seat (130) is also provided with a guide part (132) that forces the elastic clip (235) to disengage from the slot (224). When the firing pin sleeve (220) and the firing pin assembly (230) move to the guide part (132), the firing pin assembly (230) is fired through the cooperation of the elastic clip (235) with the guide part (132) and through the cooperation of the firing spring (131).

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