CN213757450U - Handrail not easy to disassemble - Google Patents
Handrail not easy to disassemble Download PDFInfo
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- CN213757450U CN213757450U CN202023143166.9U CN202023143166U CN213757450U CN 213757450 U CN213757450 U CN 213757450U CN 202023143166 U CN202023143166 U CN 202023143166U CN 213757450 U CN213757450 U CN 213757450U
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- cavity
- pull rod
- uneasily
- pole portion
- opening
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Abstract
The utility model discloses a handrail not easy to disassemble, comprising a lifting sleeve linked with a handrail surface, a fixed seat and a pull rod, wherein the fixed seat is provided with a cavity, the cavity is internally provided with a through groove and a plurality of clamping grooves which are distributed in an array and matched with a clamping bulge of the pull rod, the lifting sleeve comprises an opening part and a lifting part which moves relative to the fixed seat, the opening part is connected with the lifting part, the opening part is provided with a first cavity, the lifting part is provided with a second cavity, the first cavity is communicated with the second cavity, the cross section size of the second cavity is larger than that of the first cavity, and in an initial state, the first cavity is communicated with the through groove to form a channel for the pull rod to stretch into in an oblique manner; the utility model discloses stable in structure, difficult dismantlement, operation feel strong, mistake proofing dress.
Description
Technical Field
The utility model relates to a handrail which is not easy to disassemble.
Background
The office chair is office furniture which is indispensable for daily office work, and the armrests are convenient for the arm of a user to hold. The existing armrest is provided with a lifting structure, but in the use process, because the inner pull rod is not provided with a locking structure, when the highest point is raised, the whole armrest is easily separated from the chair, and at the moment, the user cannot be reassembled at all, so that the whole chair is scrapped, and therefore the armrest which is not easy to disassemble is urgently needed.
Disclosure of Invention
The utility model mainly solves the technical problem of providing a handrail which is not easy to disassemble.
The utility model discloses the technical scheme who solves its technical problem and adopt is: the utility model provides a handrail that is difficult for dismantling, include the lift cover that links with the handrail face, fixing base and pull rod, wherein, be equipped with the cavity on the fixing base, be equipped with in the cavity and lead to groove and a plurality of be array distribution and with the protruding complex draw-in groove of joint of pull rod, the lift cover includes the opening and is relative motion's lift portion with the fixing base, the opening is connected with lift portion, be equipped with first cavity on the opening, be equipped with the second cavity in the lift portion, the cross sectional dimension of first cavity and second cavity intercommunication and second cavity is greater than the cross sectional dimension of first cavity, under the initial condition, first cavity forms the passageway that supplies the pull rod slant to stretch into with leading to the groove intercommunication.
Through this kind of structural setting, only under initial condition, the pull rod just can stretch into to leading to the inslot through the passageway for the protruding and draw-in groove cooperation of joint forms the fixed effect of gear. Except this state position, because the passageway that leads to groove and first cavity formation all does not satisfy the requirement that the pull rod directly stretched into the assembly, so formed spacing effect, and in the same way, if need dismantle, also need adopt same route just can realize dismantling the effect for whole difficult quilt is dismantled. The initial state is specifically the lowest gear between the lifting sleeve and the fixed seat.
Wherein, the upper opening of the first chamber is large in the middle and small at two ends.
The upper opening is arranged by adopting the structure, so that the integral anti-disassembly effect is better.
Wherein, the side wall of the upper opening is provided with a notch.
Through the arrangement of the notch, the upper opening forms a structure with a large middle part and small two ends.
Wherein, be equipped with first pole portion and second pole portion on the pull rod, first pole portion is located the top of second pole portion, and the cross sectional dimension of first pole portion is less than the cross sectional dimension of second pole portion.
The pull rod adopts the upper end narrower, and the setting of lower extreme broad further improves holistic spacing effect for can only stretch into to leading to the fixed effect in groove through an angle.
Wherein, still be equipped with third pole portion on the pull rod, the joint arch is located third pole portion, and third pole portion is connected with second pole portion.
The setting of third pole portion, further, improves holistic anti-disassembly effect.
The top end of the pull rod is Y-shaped, a first rotating shaft part is arranged at one end of the pull rod, a linkage part is arranged at the other end of the pull rod, and a first rotating shaft hole matched with the first rotating shaft part is arranged on the opening part.
Through the setting of first pivot portion for button drive linkage portion drives the pull rod and rotates, realizes the linkage effect.
Wherein, be equipped with spacing post on the opening, spacing post is located the movement track of linkage portion.
Through the setting of spacing post, prevent that the pull rod from taking place excessive rotation in the use, influence actual result of use.
The lifting sleeve is characterized by further comprising a button, the button is rotatably connected with the opening portion, one end of the button is located on the outer side of the lifting sleeve, and the other end of the button extends into the opening portion and abuts against the linkage portion to drive the pull rod to move.
Through the setting of button for gear lifting operation is simpler.
Wherein, the lifting sleeve is provided with a fool-proof rib which extends into the through groove.
Adopt the setting of preventing slow-witted muscle for in assembly process, only prevent that slow-witted muscle stretches into to leading to the inslot, just can realize the installation effect, if prevent that slow-witted muscle is installed on the opposite side of fixing base, owing to prevent the setting of slow-witted muscle, can't form the assembly effect, so formed the effect of mistake proofing dress. And this cavity forms the double-purpose effect, and one is gear adjustment control, and another cooperates with preventing slow-witted muscle.
Wherein, the bottom surface of the fool-proof rib is provided with a guide surface.
Adopt the setting of spigot surface for in the assembling process, form the direction effect, what need be noted here is that the length of preventing slow-witted muscle is less than the holistic length of logical groove, under the effect of guaranteeing to prevent slow-witted, can not disturb the actual assembly effect yet.
Wherein, be equipped with spacing portion on the cavity top, spacing portion offsets with the pull rod.
Through the setting of spacing portion for there is the clearance between the bottom surface of pull rod and cavity, forms the effect of stable drive.
Wherein, the upper surface of the clamping groove inclines downwards.
The draw-in groove adopts this kind of structure setting, plays spacing effect, prevents in the use, takes place the maloperation, influences actual result of use.
Wherein, the button is provided with wear-resistant ribs.
The arrangement of the wear-resistant ribs on the buttons is adopted, so that the whole body is more in line with human-computer interaction, and the operation is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a sectional view of embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of another angle of embodiment 1 of the present invention;
fig. 4 is a schematic structural view of the lifting sleeve in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of another angle of the lifting sleeve in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a fixing seat in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a pull rod in embodiment 1 of the present invention;
fig. 8 is a side view of a tension rod according to embodiment 1 of the present invention;
fig. 9 is a schematic structural diagram of a button in embodiment 1 of the present invention.
Detailed Description
Example 1:
referring to fig. 1-9, an easily detachable armrest comprises a lifting sleeve 1 linked with an armrest surface 3 and a fixed seat 2.
The armrest surface 3 can move back and forth and rotate left and right relative to the lifting sleeve 1, and the structure of the armrest surface 3 is the prior art, so that the detailed description is omitted.
The sidewall of the upper opening 42 of the first chamber 41 is provided with a notch 421, so that the upper opening 42 forms a structure with a large middle and small two ends. The top surface of the opening part 4 is also provided with a first rotating shaft hole 43, a second rotating shaft hole 44 and a limiting column 45, wherein the first rotating shaft hole 43 is matched with the first rotating shaft part 61 of the pull rod 6 to form a relative rotation arrangement, and the second rotating shaft hole 44 is used for being matched with the button 7 to form a relative rotation arrangement. The limiting column 45 is located on the motion track of the linkage part 62, so that a limiting effect is formed.
Be equipped with on the second cavity 51 and prevent slow-witted muscle 52, prevent that slow-witted muscle 52 sets up for the axial vertical, prevent that slow-witted muscle 52 corresponds on cavity one side of fixing base 2, through preventing the setting of slow-witted muscle 52, make only one assembly direction between lifting sleeve 1 and the fixing base 2, the length that the muscle 52 was prevented slow-witted here is less than the length that leads to groove 22, after fixing base 2 and lifting sleeve 1 cooperation, prevent that slow-witted muscle 52 is extending to lead to groove 22 and is stretching into to cavity 21 in, when pull rod 6 stretches into to leading to the inslot 22, pull rod 6 offsets with preventing slow-witted muscle 52 on 1 one side of lifting sleeve, the radial spacing effect of pull rod 6 has been formed, thereby the stability of pull rod 6 motion has been guaranteed. Further, be equipped with the spigot surface on the lower extreme of preventing slow-witted muscle 52 for lift cover 1 plays the direction effect in the installation through the setting of spigot surface. And after the two are matched, the fool-proof rib 52 is also abutted against the pull rod 6, so that the radial limiting effect of the pull rod 6 is formed. Through the setting of preventing slow-witted muscle 52 for in the assembling process, only prevent that slow-witted muscle 52 stretches into to leading to the inslot 22, just can realize the installation effect, if prevent that slow-witted muscle 52 installs on the opposite side of fixing base 2 when, owing to prevent the setting of slow-witted muscle 52, can't form the assembly effect, so formed the effect of mistake proofing dress. And the cavity 21 has dual-purpose effects, one is used for gear adjustment control, and the other is matched with the fool-proof rib 52.
The pull rod 6 is integrally arranged in a Y shape, a first rotating shaft part 61 is arranged on one side of the top end of the pull rod, a linkage part 62 is arranged on the other end of the pull rod, and the pull rod is fixed on the first rotating shaft hole 43 through the first rotating shaft part 61 to realize a rotating effect. The linkage part 62 is specifically matched and linked with the button 7, so that the overall movement effect of the pull rod 6 is realized. The top end of the pull rod 6 is provided with a first rod part 63, a second rod part 64 and a third rod part 65 axially and downwards, the first rod part 63 is connected with the third rod part 65 through the second rod part 64, the structure between the first rod part and the third rod part is in size increasing gradually, namely the cross section size of the first rod part 63 is smaller than that of the second rod part 64 and that of the third rod part 65, the third rod part 65 is provided with a clamping protrusion 66 matched with the clamping groove 23, and the clamping protrusion 66 is matched with the clamping groove 23 to form clamping and separation. The pull rod 6 is narrow at the upper end and wide at the lower end, the whole limiting effect is further improved, and the pull rod can only extend into the through groove 22 through one angle to achieve the fixing effect.
The fixing seat 2 is provided with a cavity 21 in the axial direction, the top of the cavity 21 facing upward is provided with a through hole 24 for the pull rod 6 to extend into, and the cavity 21 is also arranged to be open on one side facing the lifting sleeve 1. A plurality of clamping grooves 23 distributed in an array are arranged in the concave cavity 21, the clamping grooves 23 are specifically distributed in an axial vertical manner, and the upper side surfaces of the clamping grooves 23 are inclined downwards. The clamping groove 23 is arranged in the structure, so that the limiting effect is achieved, misoperation is prevented in the using process, and the actual using effect is influenced. Be equipped with spacing portion 25 in through-hole 24 department, spacing portion 25 offsets with pull rod 6, and spacing portion 25 is relative on the radial direction with pull rod 6 for pull rod 6 is between spacing portion 25 and the fool-proof muscle 52, thereby makes to have the clearance between the bottom surface of pull rod 6 and cavity 21, at pull rod 6 pivoted in-process, is difficult for taking place the friction with cavity 21, forms the effect of stable drive. It should be noted here that the side surface of the locking groove 23 is provided with a through groove 22, the pull rod 6 can extend into the cavity 21 through the through groove 22, and the pull rod 6 can relatively rotate in the through groove 22, so as to realize the locking and separation in different locking grooves 23.
Be equipped with joint arch 66 on the pull rod 6, joint arch 66 is located the below of pull rod 6, and the top of pull rod 6 is located the drive orbit of button 7, drives pull rod 6 through button 7 and rotates for joint arch 66 block and separation in different draw-in grooves 23.
The button 7 is rotatably connected with the lifting sleeve 1, a second rotating shaft 71 is arranged on the button 7, the second rotating shaft 71 is fixed in a second rotating shaft 71 hole 44 of the lifting sleeve 1, the other end of the second rotating shaft is located above the linkage portion 62, and the button 7 located on the outer side is pressed to enable one end located inside to rotate downwards to form a pressing action of the linkage portion 62 and enable the pull rod 6 to be driven to move integrally. One of the outside that this place button 7 is located lifting sleeve 1 serves and is equipped with wear-resisting muscle 72, adopts the setting that is equipped with wear-resisting muscle 72 on the button 7 for whole accord with human-computer interaction more, and it is more convenient to operate.
In the initial state, the first chamber 41 communicates with the through groove 22 to form a passage into which the tie bar 6 obliquely extends. Through the structure, only in the initial state, the pull rod 6 can stretch into the through groove 22 through the channel, so that the clamping protrusion 66 is matched with the clamping groove 23 to form the effect of fixing the gears. Except for this state position, because the passageway that logical groove 22 and first cavity 41 formed does not all satisfy the requirement that pull rod 6 directly stretched into the assembly, so formed spacing effect, like this, if need dismantle when, also need adopt same route to pull out just can realize pull rod 6's dismantlement effect for whole difficult quilt is dismantled. The initial state is specifically the lowest gear between the lifting sleeve 1 and the fixed seat 2.
Claims (10)
1. The utility model provides a handrail difficult to dismantle, includes lift cover, fixing base and the pull rod with the linkage of handrail face, its characterized in that: be equipped with the cavity on the fixing base, be equipped with logical groove and a plurality of in the cavity and be array distribution and with the protruding complex draw-in groove of joint of pull rod, the lift cover includes the opening and is relative motion's lift portion with the fixing base, the opening is connected with lift portion, be equipped with first cavity on the opening, be equipped with the second cavity in the lift portion, the cross section size of first cavity and second cavity intercommunication and second cavity is greater than the cross section size of first cavity, under the initial condition, first cavity forms the passageway that supplies the pull rod slant to stretch into with leading to the groove intercommunication.
2. An uneasily detachable armrest according to claim 1, wherein: the upper opening of the first chamber is large in the middle and small at two ends.
3. An uneasily detachable armrest according to claim 2, wherein: the side wall of the upper opening is provided with a notch.
4. An uneasily detachable armrest according to claim 1, wherein: be equipped with first pole portion and second pole portion on the pull rod, first pole portion is located the top of second pole portion, and the cross sectional dimension of first pole portion is less than the cross sectional dimension of second pole portion.
5. An uneasily detachable armrest according to claim 4, wherein: still be equipped with third pole portion on the pull rod, the joint arch is located third pole portion, and third pole portion is connected with second pole portion.
6. An uneasily detachable armrest according to claim 5, wherein: the top end of the pull rod is Y-shaped, one end of the pull rod is provided with a first rotating shaft part, the other end of the pull rod is provided with a linkage part, and the opening part is provided with a first rotating shaft hole matched with the first rotating shaft part.
7. An uneasily detachable armrest according to claim 6, wherein: the opening part is provided with a limiting column which is positioned on the motion track of the linkage part.
8. An uneasily detachable armrest according to claim 7, wherein: the lifting sleeve is characterized by further comprising a button, the button is rotatably connected with the opening portion, one end of the button is located on the outer side of the lifting sleeve, and the other end of the button extends into the opening portion and abuts against the linkage portion to drive the pull rod to move.
9. An uneasily detachable armrest according to claim 1, wherein: the lifting sleeve is provided with a fool-proof rib which extends into the through groove.
10. An uneasily detachable armrest according to claim 1, wherein: the top of the concave cavity is provided with a limiting part which is propped against the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143166.9U CN213757450U (en) | 2020-12-23 | 2020-12-23 | Handrail not easy to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143166.9U CN213757450U (en) | 2020-12-23 | 2020-12-23 | Handrail not easy to disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213757450U true CN213757450U (en) | 2021-07-23 |
Family
ID=76900013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023143166.9U Active CN213757450U (en) | 2020-12-23 | 2020-12-23 | Handrail not easy to disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213757450U (en) |
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2020
- 2020-12-23 CN CN202023143166.9U patent/CN213757450U/en active Active
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| GR01 | Patent grant |