CN219782210U - Mailbox convenient to assembly - Google Patents
Mailbox convenient to assembly Download PDFInfo
- Publication number
- CN219782210U CN219782210U CN202321248250.8U CN202321248250U CN219782210U CN 219782210 U CN219782210 U CN 219782210U CN 202321248250 U CN202321248250 U CN 202321248250U CN 219782210 U CN219782210 U CN 219782210U
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- letter
- hole
- torsion spring
- spring assembly
- block
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- 238000005266 casting Methods 0.000 claims abstract description 39
- 239000004677 Nylon Substances 0.000 claims description 21
- 229920001778 nylon Polymers 0.000 claims description 21
- 230000000712 assembly Effects 0.000 abstract description 8
- 238000000429 assembly Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 27
- 230000037431 insertion Effects 0.000 description 27
- 238000004804 winding Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a mailbox convenient to assemble, which comprises a letter casting seat, a letter discharging seat, a letter casting door, a letter discharging door and four spring assemblies, wherein a fixed edge of the letter casting door is pivoted with the upper side edge of the letter casting seat through the spring assemblies; the inner section of the spring assembly is provided with a plurality of jacks for plugging external tightening tools, each jack is distributed along the circumferential direction of the inner section of the spring assembly, and each jack can be exposed in the notch through rotation.
Description
Technical Field
The utility model relates to the technical field of door locking fittings, in particular to a mailbox convenient to assemble.
Background
The current letter box comprises a letter casting seat, a letter outputting seat, a letter casting door, a letter outputting door and four spring assemblies, wherein the letter casting seat and the letter outputting seat are hollow and matched to form a letter cavity, a covering hairbrush is arranged in the letter cavity, two ends of a fixed edge of the letter casting door are respectively pivoted with two ends of the upper side edge of the letter casting seat through corresponding spring assemblies, and two ends of the fixed edge of the letter outputting door are respectively pivoted with two ends of the upper side edge of the letter outputting seat through corresponding spring assemblies. After the spring components between the letter casting door and the letter casting seat and between the letter outlet door and the letter outlet seat are connected, the spring components need to be screwed down in order to enable the letter casting door and the letter outlet door to rebound after being opened. If the spring assembly is too loosened, the connection between the letter casting door and the letter casting seat and the connection between the letter outlet door and the letter outlet seat are not firm, the tightness is not strong, and the letter casting door and the letter outlet door are easy to shake; if the spring assembly is too tightly screwed, excessive force is needed when the letter-throwing door and the letter-outputting door are lifted, so that letters are placed and taken out inadequately smoothly.
However, there are problems commonly existing in the prior art when the spring assembly is screwed down after being mounted, for example, the utility model patent of the grant publication CN102481062B discloses a spring assembly comprising a frame (corresponding to a letter drop or a letter outlet), a cover flap (corresponding to a letter drop or a letter outlet), a spring assembly, a compression spring, a winding wheel and an L-shaped trigger, wherein each end of the cover flap has a second rotation limiting hole, and when the spring assembly is to be mounted in the second rotation limiting hole, the compression spring is required to be inserted into the second rotation limiting hole first; then the spring component is inserted into the second rotation limiting hole, so that the inner end of the spring component is abutted with the compression spring; then making the inner end of the spring component unable to rotate relative to the covering folded plate, attaching a winding wheel at the outer end of the spring component, and making the winding wheel rotate clockwise through 270 DEG to preload the torsion spring, so that the torsion spring has a certain resilience force; then inserted through the pin of the L-shaped trigger into the hole at the outer end of the spring assembly to hold the torsion spring in a position where it has been rotated by use of the winding wheel; finally, the winding wheel is removed, leaving the torsion spring in place by the L-shaped trigger, so that the torsion spring cannot unwind. The spring assembly is screwed directly from the outer end of the spring assembly by a special tool (winding wheel) and is fixed by an L-shaped trigger after the screwing. Before the pin of the L-shaped trigger is inserted into the hole at the outer end of the spring assembly, the pin of the L-shaped trigger is required to be aligned with the hole at the outer end of the spring assembly to be inserted, one end of the L-shaped trigger is blocked to the hole at the outer end of the spring assembly in the inserting process, if the pin of the L-shaped trigger is not inserted into the hole at the outer end of the spring assembly, the winding wheel is removed, the torsion spring is directly returned to an untwisted state, and the spring assembly is easily ejected from the second rotation limiting hole.
In a word, when above-mentioned spring assembly is screwed up after the installation, need to realize screwing up the cooperation through compression spring, winding round and L shape trigger etc. and installation cooperation is too many, and the structure is comparatively complicated to need two springs to realize screwing up and keep the function of resilience, the assembly is comparatively troublesome, influences spring assembly's assembly efficiency.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the mailbox convenient to assemble, and the mailbox can screw the spring assembly by only one screwing tool, has a simple structure and is convenient for workers to assemble.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a mailbox convenient to assembly, includes to throw letter seat, goes out letter seat, throws letter door, goes out letter door and four spring assembly, throws letter seat and goes out letter seat cavity cooperation and constitute a letter chamber, is equipped with in the letter chamber and covers the brush, throws the both ends of letter door fixed limit and throws the both ends pin joint of side on the letter seat through corresponding spring assembly respectively, goes out the both ends pin joint of the both ends of the side on letter door fixed limit and the letter seat through corresponding spring assembly respectively, its characterized in that: the two ends of the fixed edge of the letter casting door and the two ends of the fixed edge of the letter outlet door are respectively provided with a sliding channel, a notch and a first rotation limiting hole which are internally and externally communicated from outside to inside in sequence, the two ends of the upper side edge of the letter casting seat and the two ends of the upper side edge of the letter outlet seat are respectively provided with a second rotation limiting hole which is in plug-in fit with the outer end of the corresponding spring assembly, the spring assembly is positioned in the corresponding sliding channel, the outer end of the spring assembly is plugged in the second rotation limiting hole and is in snap fit with the second rotation limiting hole, and the inner end of the spring assembly is in snap fit with the first rotation limiting hole; the inner section of the spring assembly is provided with a plurality of jacks for plugging external tightening tools, each jack is distributed along the circumferential direction of the inner section of the spring assembly, and each jack can be exposed in the notch through rotation.
Typically, the external tightening tool may be a pin or a rod, and the pin or rod may be inserted into a receptacle of the spring assembly exposed in the notch.
The sliding channel plays a role in limiting and guiding the spring assembly, and can guide the spring assembly to move inside and outside more stably.
Each spring assembly is sequentially inserted into a corresponding sliding channel, the outer end of each spring assembly is inserted into a second rotation limiting hole of the letter casting seat (or the letter outlet seat) and is in snap fit with the second rotation limiting hole, so that the outer end of each spring assembly cannot rotate relative to the letter casting seat (or the letter outlet seat), and the outer end of each spring assembly is limited; the inner end of the spring assembly is in snap fit with the first rotation limiting hole, a part of insertion holes on the inner section of the spring assembly are exposed in the notch, when the spring assembly is to be screwed down, an insertion rod is used as a screwing tool, one end of the insertion rod is inserted into the insertion hole exposed in the notch (namely the first insertion hole), under the elastic action of the spring assembly, the spring assembly is driven to be extruded outwards through the insertion rod, the spring assembly moves outwards along the sliding channel, so that the inner end of the spring assembly is temporarily separated from the first rotation limiting hole, but the inner end of the spring assembly is not completely separated from the first rotation limiting hole, and under the condition that the outer end of the spring assembly does not rotate, the spring assembly in the notch is driven to rotate in one direction by rotating the insertion rod; after rotating, the spring assembly stretches inwards to reset, the spring assembly moves inwards along the sliding channel, so that the inner end of the spring assembly is in snap fit with the first rotation limiting hole again, the inserting rod is pulled out, and at the moment, the second inserting hole is exposed out of the notch; and then one end of the inserted link is reinserted into the second jack, the spring assembly is driven to be extruded outwards again through the inserted link, the spring assembly is enabled to move outwards in the sliding channel, the steps are repeated to drive the spring assembly in the notch to rotate towards one direction, the spring assembly is gradually screwed up, the torsion of the spring assembly is further adjusted, the torsion spring has a certain resilience force, and the letter-throwing door and the letter-outputting door can rebound after being opened.
In the preferred scheme, the first rotation limiting hole is a regular polygon hole, a regular polygon block matched with the regular polygon hole is arranged at the inner end of the spring assembly, an extension rotating shaft is connected to the inner end of the regular polygon block, and the outer diameter of the extension rotating shaft is smaller than the inner diameter of the regular polygon hole; normally, the regular polygon column block is in the regular polygon hole, and the extension rotating shaft is in the inner side of the regular polygon hole. When the inserted link drives the spring assembly to extrude outwards, the spring assembly moves outwards along the sliding channel, the regular polygon block at the inner end of the spring assembly is separated from the regular polygon hole and is temporarily separated from the snap fit with the regular polygon hole, but the extension rotating shaft at the inner end of the regular polygon hole is still positioned in the regular polygon hole, so that the inner end of the spring assembly is not completely separated from the regular polygon hole, and when the inserted link is rotated to drive the spring assembly to rotate in one direction, the extension rotating shaft plays a limiting role on the inner end of the spring assembly and can rotate in the regular polygon hole. Of course, the regular polygonal hole may be a regular triangle hole, a square hole or other regular polygonal holes, and the inner end of the spring assembly is provided with a regular polygonal column block matching the regular polygonal hole in shape, for example: the regular polygon hole is a regular triangle hole, and the inner end of the spring component is provided with a regular triangular prism block; the regular polygon hole is a square hole, and the inner end of the spring component is provided with a regular quadrangular block; the regular polygon hole is regular hexagon hole, and the inner end of the spring component is provided with regular hexagonal prism blocks.
In a further preferred scheme, the second rotation limiting hole is a first square hole, a first square block matched with the first square hole is arranged at the outer end of the spring assembly, and the first square block is located in the first square hole. When the rotary inserted rod drives the spring assembly to rotate towards one direction, the first square block is always positioned in the first square hole and is in snap fit with the first square hole, so that the outer end of the spring assembly cannot rotate relative to the letter casting seat (or the letter outlet seat).
In a still further preferred scheme, the spring assembly comprises a torsion spring, a first torsion spring shaft and a second torsion spring shaft, a first positioning column is arranged at the outer end of the first torsion spring shaft, a first slot with an outward opening is arranged in the middle of the first torsion spring shaft, the regular polygon column block is arranged at the inner end of the first torsion spring shaft, the first end of the torsion spring is sleeved on the first positioning column, and the first torsion arm of the torsion spring is hooked in the first slot; the inner of the second torsion spring shaft is provided with a second positioning column, the middle of the second torsion spring shaft is provided with a second slot with an inward opening, the first square block is arranged on the outer end of the second torsion spring shaft, the second end of the torsion spring is sleeved on the second positioning column, and the second torsion arm of the torsion spring is hooked in the second slot.
In still a further preferred aspect, each of the insertion holes is distributed on the middle portion of the first torsion spring shaft along the circumferential direction of the first torsion spring shaft, the number of insertion holes is the same as the number of edges of the positive polygon prism block and the positions of the insertion holes correspond to each other, and each insertion hole is located on an extension line of a corresponding edge of the positive polygon prism block. If the regular polygon hole is a square hole, the regular polygon block is a regular quadrangular block, and when the inserting rod is rotated to drive the spring assembly in the notch to rotate towards one direction, the inserting rod is inserted into one adjacent inserting hole to rotate, and the inserting rod drives the spring assembly to rotate towards one direction for 90 degrees each time.
In still a further preferred scheme, a first hook is arranged at the inner end of a first torsion arm of the torsion spring, a first through hole is formed in the middle of the first torsion spring shaft, the first through hole is communicated with the first slot, and the first hook is hooked in the first through hole; the outer end of the second torsion arm of the torsion spring is provided with a second hook, the middle part of the second torsion spring shaft is provided with a second through hole, the second through hole is communicated with the second slot, and the second hook is tightly hooked in the second through hole. Through this kind of setting, with torsion spring's first torsion arm inner chucking in the middle part of first torsion spring axle, torsion spring's second torsion arm outer end chucking in the middle part of second torsion spring axle for first torsion spring axle can not rotate for torsion spring's first end, and second torsion spring axle can not rotate for torsion spring's second end.
In still further alternative, the spring assembly further comprises a nylon cushion block, the nylon cushion block is provided with a second square hole which is internally and externally communicated, the nylon cushion block is sleeved on the first square block through the second square hole, the first square block is inserted into the first square hole, and the nylon cushion block is clamped between the outer end face of the middle part of the second torsion spring shaft and the first square hole. The nylon cushion block is arranged between the outer end face of the middle part of the second torsion spring shaft and the first square hole, so that impact of the letter casting door and the letter outlet door on the letter casting seat and the letter outlet seat can be reduced, abrasion and noise between the letter casting door and the letter casting seat and between the letter outlet door and the letter outlet seat are reduced, and the service life of the letter box is prolonged.
In still a further alternative scheme, be equipped with the second square piece on the outer terminal surface of nylon cushion, the second square piece is close to the second square hole, when first square piece passes the second square piece and peg graft in the first square hole, the second square piece peg graft in first square hole. The second square block on the outer end surface of the nylon cushion block is also inserted into the first square hole, so that the nylon cushion block can be more firmly installed between the outer end surface of the middle part of the second torsion spring shaft and the first square hole.
Compared with the prior art, the utility model has the following advantages:
the mailbox convenient to assemble can be screwed down by only one screwing tool through changing the assembling structures between the letter throwing door and the spring assembly and between the letter discharging seat, so that the assembling steps are simplified, the cooperation between auxiliary screwing tools is reduced, the structure is simpler, the assembly of workers is convenient, and the assembling efficiency of the spring assembly is improved.
Drawings
FIG. 1 is a schematic illustration showing the disassembly of a letter box in a preferred embodiment of the present utility model;
FIG. 2 is a schematic diagram of the assembled structure of the signal box of FIG. 1;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
FIG. 4 is a schematic view of the spring assembly of FIG. 1 in a disassembled state;
fig. 5 is a schematic view of the assembled spring assembly of fig. 4.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1-5, the mailbox in this embodiment, which is convenient to assemble, comprises a letter casting seat 1, a letter outputting seat 2, a letter casting door 3, a letter outputting door 4 and four spring assemblies 5, wherein the letter casting seat 1 and the letter outputting seat 2 are hollow and matched to form a letter cavity 6, a covering hairbrush 61 is arranged in the letter cavity 6, two ends of a fixed edge 31 of the letter casting door 3 are respectively pivoted with two ends of an upper side edge 11 of the letter casting seat 1 through corresponding spring assemblies 5, and two ends of a fixed edge 41 of the letter outputting door 4 are respectively pivoted with two ends of an upper side edge 21 of the letter outputting seat 2 through corresponding spring assemblies 5; the two ends of the fixed edge 31 of the letter casting door 3 and the two ends of the fixed edge 41 of the letter outlet door 4 are respectively provided with a sliding channel 32 which is internally and externally communicated, a notch 33 and a first rotation limiting hole 34 which is internally and externally communicated in sequence from outside to inside, the two ends of the upper side 11 of the letter casting seat 1 and the two ends of the upper side 21 of the letter outlet seat 2 are respectively provided with a second rotation limiting hole 22 which is in plug-in fit with the outer end of the corresponding spring assembly 5, the spring assembly 5 is positioned in the corresponding sliding channel 32, the outer end of the spring assembly 5 is plugged in the second rotation limiting hole 22 and is in snap fit with the second rotation limiting hole 22, and the inner end of the spring assembly 5 is in snap fit with the first rotation limiting hole 34; the inner section of the spring assembly 5 is provided with a plurality of insertion holes 51 for inserting an external tightening tool, each insertion hole 51 is distributed along the circumferential direction of the inner section of the spring assembly 5, and each insertion hole 51 can be exposed in the notch 33 through rotation.
Typically, the external tightening tool is a plug rod 7, and the plug rod 7 can be inserted into the insertion hole 51 of the spring assembly 5 exposed in the notch 33.
The sliding channel 32 plays a role in limiting and guiding the spring assembly 5, and can guide the spring assembly 5 to move inside and outside more smoothly.
Each spring assembly 5 is sequentially inserted into the corresponding sliding channel 32, and the outer end of each spring assembly 5 is inserted into the second rotation limiting hole 22 of the letter casting seat 1 (or the letter outputting seat 2) and is in snap fit with the second rotation limiting hole 22, so that the outer end of each spring assembly 5 cannot rotate relative to the letter casting seat 1 (or the letter outputting seat 2), and the outer end of each spring assembly 5 is limited; the inner end of the spring assembly 5 is in snap fit with the first rotation limiting hole 34, a part of the insertion hole 51 on the inner section of the spring assembly 5 is exposed in the notch 33, when the spring assembly 5 is to be screwed down, one insertion rod 7 is used as a screwing tool, one end of the insertion rod 7 is inserted into the insertion hole 51 (namely the first insertion hole 51) exposed in the notch 33, under the elastic action of the spring assembly 5, the spring assembly 5 is driven to be extruded outwards through the insertion rod 7, the spring assembly 5 moves outwards along the sliding channel 32, the inner end of the spring assembly 5 is temporarily separated from the first rotation limiting hole 34, but the inner end of the spring assembly 5 is not completely separated from the first rotation limiting hole 34, and under the condition that the outer end of the spring assembly 5 does not rotate, the spring assembly 5 in the notch 33 is driven to rotate in one direction by rotating the insertion rod 7; after rotating, the spring assembly 5 stretches inwards to reset, the spring assembly 5 moves inwards along the sliding channel 32, so that the inner end of the spring assembly 5 is in snap fit with the first rotation limiting hole 34 again, the inserted link 7 is pulled out, and the second insertion hole 51 is exposed in the notch 33; then, one end of the inserting rod 7 is reinserted into the second inserting hole 51, the inserting rod 7 drives the spring assembly 5 to be extruded outwards again, the spring assembly 5 is enabled to move outwards in the sliding channel 32, the steps are repeated to drive the spring assembly 5 in the notch 33 to rotate towards one direction, the spring assembly 5 is gradually screwed, the torsion of the spring assembly 5 is further adjusted, the torsion spring 55 has a certain resilience force, and the letter feeding door 3 and the letter discharging door 4 can rebound after being opened.
The first rotation limiting hole 34 is a regular polygon hole, a regular polygon block 52 matched with the regular polygon hole is arranged at the inner end of the spring assembly 5, an extension rotating shaft 53 is connected to the inner end of the regular polygon block 52, and the outer diameter of the extension rotating shaft 53 is smaller than the inner diameter of the regular polygon hole; normally, the regular polygon block 52 is in the regular polygon hole, and the extension rotation shaft 53 is inside the regular polygon hole. When the plunger 7 drives the spring assembly 5 to press outwards, the spring assembly 5 moves outwards along the sliding channel 32, the regular polygon block 52 at the inner end of the spring assembly 5 is separated from the regular polygon hole and temporarily separated from the snap fit with the regular polygon hole, but the extension rotating shaft 53 at the inner end of the regular polygon hole is still in the regular polygon hole, so that the inner end of the spring assembly 5 is not completely separated from the regular polygon hole, and when the plunger 7 rotates to drive the spring assembly 5 to rotate in one direction, the extension rotating shaft 53 plays a limiting role on the inner end of the spring assembly 5 but can rotate in the regular polygon hole. Of course, the regular polygon hole is a square hole, and the inner end of the spring assembly 5 is provided with a regular quadrangular prism block.
The second rotation limiting hole 22 is a first square hole 221, a first square block 54 matched with the first square hole 221 is arranged at the outer end of the spring assembly 5, and the first square block 54 is positioned in the first square hole 221. When the rotary plunger 7 drives the spring assembly 5 to rotate in one direction, the first square block 54 is always located in the first square hole 221 and is in snap fit with the first square hole 221, so that the outer end of the spring assembly 5 cannot rotate relative to the letter drop 1 (or the letter drop 2).
The spring assembly 5 comprises a torsion spring 55, a first torsion spring shaft 56 and a second torsion spring shaft 57, wherein a first positioning column 561 is arranged at the outer end of the first torsion spring shaft 56, a first slot 562 with an outward opening is arranged in the middle of the first torsion spring shaft 56, the regular polygon column block 52 is arranged on the inner end of the first torsion spring shaft 56, the first end of the torsion spring 55 is sleeved on the first positioning column 561, and a first torsion arm 551 of the torsion spring 55 is hooked in the first slot 562; the inner end of the second torsion spring shaft 57 is provided with a second positioning column 571, the middle part of the second torsion spring shaft 57 is provided with a second slot 572 with an inward opening, the first square block 54 is arranged on the outer end of the second torsion spring shaft 57, the second end of the torsion spring 55 is sleeved on the second positioning column 571, and the second torsion arm 552 of the torsion spring 55 is hooked in the second slot 572.
Each of the insertion holes 51 is distributed on the middle of the first torsion spring shaft 56 along the circumferential direction of the first torsion spring shaft 56, the number of the insertion holes 51 is the same as the number of the edges of the positive polygon column block 52 and the positions thereof correspond to each other, and each of the insertion holes 51 is located on the extension line of the corresponding edge of the positive polygon column block 52. If the regular polygonal hole is a square hole, the regular polygonal block 52 is a regular quadrangular block, and when the insert rod 7 is rotated to drive the spring assembly 5 in the notch 33 to rotate in one direction, the insert rod 7 is inserted into one adjacent insertion hole 51 to rotate each time, and the insert rod 7 drives the spring assembly 5 to rotate in one direction by 90 ° each time.
The inner end of the first torsion arm 551 of the torsion spring 55 is provided with a first hook 553, the middle part of the first torsion spring shaft 56 is provided with a first through hole 563, the first through hole 563 is communicated with the first slot 562, and the first hook 553 is hooked in the first through hole 563; the outer end of the second torsion arm 552 of the torsion spring 55 is provided with a second hook 554, the middle part of the second torsion spring shaft 57 is provided with a second through hole 573, the second through hole 573 is communicated with the second slot 572, and the second hook 554 is hooked in the second through hole 573. With this arrangement, the inner end of the first torsion arm 551 of the torsion spring 55 is clamped in the middle of the first torsion spring shaft 56, and the outer end of the second torsion arm 552 of the torsion spring 55 is clamped in the middle of the second torsion spring shaft 57, so that the first torsion spring shaft 56 cannot rotate relative to the first end of the torsion spring 55, and the second torsion spring shaft 57 cannot rotate relative to the second end of the torsion spring 55.
The spring assembly 5 further comprises a nylon cushion block 58, a second square hole 581 which is internally and externally communicated is arranged on the nylon cushion block 58, the nylon cushion block 58 is sleeved on the first square block 54 through the second square hole 581, the first square block 54 is inserted into the first square hole 221, and the nylon cushion block 58 is clamped between the outer end face of the middle part of the second torsion spring shaft 57 and the first square hole 221. The nylon cushion block 58 is arranged between the outer end surface of the middle part of the second torsion spring shaft 57 and the first square hole 221, so that the impact of the letter casting door 3 and the letter outlet door 4 on the letter casting seat 1 and the letter outlet seat 2 can be reduced, the abrasion and noise between the letter casting door 3 and the letter casting seat 1 and between the letter outlet door 4 and the letter outlet seat 2 can be reduced, and the service life of a letter box can be prolonged.
The nylon cushion block 58 has a second square block 582 on an outer end surface thereof, the second square block 582 is close to the second square hole 581, and when the first square block 54 passes through the second square block 582 and is inserted into the first square hole 221, the second square block 582 is inserted into the first square hole 221. The second square block 582 on the outer end surface of the nylon spacer 58 is also inserted into the first square hole 221, so that the nylon spacer 58 can be more firmly installed between the outer end surface of the middle part of the second torsion spring shaft 57 and the first square hole 221.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present utility model are included in the protection scope of the present utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The utility model provides a mailbox convenient to assembly, includes to throw letter seat, goes out letter seat, throws letter door, goes out letter door and four spring assembly, throws letter seat and goes out letter seat cavity cooperation and constitute a letter chamber, is equipped with in the letter chamber and covers the brush, throws the both ends of letter door fixed limit and throws the both ends pin joint of side on the letter seat through corresponding spring assembly respectively, goes out the both ends pin joint of the both ends of the side on letter door fixed limit and the letter seat through corresponding spring assembly respectively, its characterized in that: the two ends of the fixed edge of the letter casting door and the two ends of the fixed edge of the letter outlet door are respectively provided with a sliding channel, a notch and a first rotation limiting hole which are internally and externally communicated from outside to inside in sequence, the two ends of the upper side edge of the letter casting seat and the two ends of the upper side edge of the letter outlet seat are respectively provided with a second rotation limiting hole which is in plug-in fit with the outer end of the corresponding spring assembly, the spring assembly is positioned in the corresponding sliding channel, the outer end of the spring assembly is plugged in the second rotation limiting hole and is in snap fit with the second rotation limiting hole, and the inner end of the spring assembly is in snap fit with the first rotation limiting hole; the inner section of the spring assembly is provided with a plurality of jacks for plugging external tightening tools, each jack is distributed along the circumferential direction of the inner section of the spring assembly, and each jack can be exposed in the notch through rotation.
2. An assembled letter box according to claim 1, wherein: the first rotation limiting hole is a regular polygon hole, a regular polygon block matched with the regular polygon hole is arranged at the inner end of the spring assembly, an extension rotating shaft is connected to the inner end of the regular polygon block, and the outer diameter of the extension rotating shaft is smaller than the inner diameter of the regular polygon hole; normally, the regular polygon column block is in the regular polygon hole, and the extension rotating shaft is in the inner side of the regular polygon hole.
3. An assembled letter box according to claim 2, wherein: the second rotation limiting hole is a first square hole, a first square block matched with the first square hole is arranged at the outer end of the spring assembly, and the first square block is located in the first square hole.
4. A letter box for facilitating assembly as claimed in claim 3, wherein: the spring assembly comprises a torsion spring, a first torsion spring shaft and a second torsion spring shaft, a first positioning column is arranged at the outer end of the first torsion spring shaft, a first slot with an opening facing outwards is arranged in the middle of the first torsion spring shaft, the positive polygonal column block is arranged at the inner end of the first torsion spring shaft, the first end of the torsion spring is sleeved on the first positioning column, and a first torsion arm of the torsion spring is hooked in the first slot; the inner of the second torsion spring shaft is provided with a second positioning column, the middle of the second torsion spring shaft is provided with a second slot with an inward opening, the first square block is arranged on the outer end of the second torsion spring shaft, the second end of the torsion spring is sleeved on the second positioning column, and the second torsion arm of the torsion spring is hooked in the second slot.
5. An assembled letter box according to claim 4, wherein: each jack is distributed on the middle part of the first torsion spring shaft along the circumferential direction of the first torsion spring shaft, the number of the jacks is the same as the number of the edges of the positive polygon column block, the positions of the jacks correspond to the positions of the edges of the positive polygon column block, and each jack is positioned on an extension line of the corresponding edge of the positive polygon column block.
6. An assembled letter box according to claim 5, wherein: the inner end of a first torsion arm of the torsion spring is provided with a first hook, the middle part of the first torsion spring shaft is provided with a first through hole, the first through hole is communicated with the first slot, and the first hook is tightly hooked in the first through hole; the outer end of the second torsion arm of the torsion spring is provided with a second hook, the middle part of the second torsion spring shaft is provided with a second through hole, the second through hole is communicated with the second slot, and the second hook is tightly hooked in the second through hole.
7. An assembled letter box according to claim 4, wherein: the spring assembly further comprises a nylon cushion block, the nylon cushion block is provided with a second square hole which is internally and externally communicated, the nylon cushion block is sleeved on the first square block through the second square hole, the first square block is inserted into the first square hole, and the nylon cushion block is clamped between the outer end face of the middle part of the second torsion spring shaft and the first square hole.
8. An assembled letter box according to claim 7, wherein: the outer end face of the nylon cushion block is provided with a second square block, the second square block is close to the second square hole, and when the first square block passes through the second square block and is inserted into the first square hole, the second square block is inserted into the first square hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248250.8U CN219782210U (en) | 2023-05-23 | 2023-05-23 | Mailbox convenient to assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248250.8U CN219782210U (en) | 2023-05-23 | 2023-05-23 | Mailbox convenient to assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219782210U true CN219782210U (en) | 2023-10-03 |
Family
ID=88177999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321248250.8U Active CN219782210U (en) | 2023-05-23 | 2023-05-23 | Mailbox convenient to assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219782210U (en) |
-
2023
- 2023-05-23 CN CN202321248250.8U patent/CN219782210U/en active Active
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