CN2594512Y - Self-locking lifting device of pipe joint - Google Patents
Self-locking lifting device of pipe joint Download PDFInfo
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- CN2594512Y CN2594512Y CN 02292848 CN02292848U CN2594512Y CN 2594512 Y CN2594512 Y CN 2594512Y CN 02292848 CN02292848 CN 02292848 CN 02292848 U CN02292848 U CN 02292848U CN 2594512 Y CN2594512 Y CN 2594512Y
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Abstract
The utility model relates to a self-locking lifting device of joint pipes, which belongs to the lifting positioning device which can control a plurality of joint pipes. The inner side of a first joint pipe is provided with an inner rod component, the outer side of which is provided with a self-locking assembly which comprises an inner control pipe, a clamping lining component and a tightness lining. A second joint pipe of a connecting fixer is arranged between the inner control pipe and the first joint pipe. The clamping lining component is mutually clamped with the inner rod component in a convex-concave mode. The outer side of the clamping lining component is provided with the tightness lining which is connected with the inner control pipe. The fixer is pivoted with a handle, one end of which enters the second joint pipe and is connected with the inner control pipe. The inner control pipe and the tightness lining can be pulled to move downwards by pressing the handle. A steady pin can separate with a clamping groove by removing the clamping lining component, and the second joint pipe can be lifted and dropped. The tightness lining can lock the clamping lining component and the inner rod component by loosening the hands. The height can be quickly adjusted by pressing and loosening the hands. The utility model can ensure that the second joint pipe can not optionally rotate in the first joint pipe.
Description
Technical field
The utility model relates to a kind of lowering or hoisting gear of musical instrument technical field, particularly relates to a kind of pipe joint that supplies music stand to be suitable for, and is provided with the convenient pipe joint self-locking lowering or hoisting gear of stably controlling the pipe joint ascending, descending.
Background technique
Music easel or microphone boom, or music stand such as bearing musical instrument support body have the lifting function of adjusting height for adapting to the human body different heights.
Existing music stand control lowering or hoisting gear, it is to add the device that is locked with threaded joint by first and second pipe joint of two mutual plug-in mountings, when the collapsing length of regulating between first and second pipe joint, earlier move back the device that is locked with the rotation mode pine, with portable liter or reduce the length of second pipe joint, this device location that is locked at last turns clockwise again; But rotational lock mode like that, complex operation, need rotation, remake upper and lower displacement after the rotation, its operation has earlier, the time of back order, obviously control rapid inadequately, when often on platform, performing, loaded down with trivial details operating time is disturbed the performance scene, and the be locked spiral shell packing type structure of device of this kind is threadably a plug sleeve to be forced into a plastic tube to make its support big.And then lock between the relative anchor ring of first and second pipe joint, allowing plastic tube be bursting at the collision distortion easily, so that reduce the steadiness of locking, the life-span is not durable;
Another kind of music stand, as U.S. Patent number the 4th, 671, No. 479, it is to be provided with outer segment tube in the inner segment tube outside, the inner segment tube upper end is provided with the leader, and it can drive the bar that is positioned at inner segment tube mat, and bar drives back boxing cover compression spring in making, allow the conical surface place of back boxing cover break away from the external bushing that this is positioned at the back boxing cover outside, external bushing is squeezed because of losing the urgent of back boxing cover, lose urgent Shu Zuoyong, the lifting of pulling inner segment tube the outer segment tube inwall; Yet, this kind locks the outer segment tube inwall by the frictional force of external bushing, to confirm the height of lifting, under long-term friction, because wearing and tearing so that effective fixation that detracts, even, the back boxing cover also is that mat frictional force comes to compel to squeeze the location with external bushing, so the frictional force of external bushing and outer segment tube, and under back boxing overlaps and the friction of external bushing detracts, there is the defective that produces inner segment tube random rotation in outer segment tube.
This shows that above-mentioned existing music stand control lowering or hoisting gear still has many defectives, and demands urgently further being improved.
Because the defective that above-mentioned existing music stand control lowering or hoisting gear exists, the inventor is based on abundant practical experience and professional knowledge, actively studied innovation, through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
Main purpose of the present utility model is, the design that overcomes existing traditional instrument frame control lifting is to locate by frictional force, inside and outside pipe joint produces the defective that turns between lifting, and provide a kind of pipe joint self-locking lowering or hoisting gear of new structure, technical problem underlying to be solved is to take to hold simultaneously and squeeze grip, rise or descend and can spur pipe joint immediately, one reaches specified altitude assignment, need only be once the auto lock of loosing one's grip, not only convenient rapidly locking can prevent that more liftable pipe joint from rotating arbitrarily.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions.According to the pipe joint self-locking lowering or hoisting gear that the utility model proposes, it comprises: one first pipe joint, rod member in the first pipe joint internal fixation one; One self-locking group, self-locking group comprise that at least keyholed back plate and clamps sleeve member in one, aforementioned in the keyholed back plate lower end be provided with one and clamp sleeve member, clamp sleeve member and run through for interior rod member, and and interior rod member between can be embossed card and formulate the position; One fixture, fixture links one second pipe joint, one end, this second pipe joint stretches in first pipe joint, between the interior keyholed back plate outside and the first pipe joint inboard, the second pipe joint pipe lower end links with the clamping sleeve member, this fixture one side leader that is pivoted, the close part that is pivoted of handle penetrates second pipe joint and forms with the internal control pipe and to link; The mat squeeze grip is removed the blocking state that clamps sleeve member and interior product spurring interior keyholed back plate, allows the second pipe joint lifting adjustment.
The purpose of this utility model and solve its technical problem and can also adopt following technical measures further to realize.
Aforesaid pipe joint self-locking lowering or hoisting gear, the interior rod member of wherein said first pipe joint spacer ring vertically is concaved with more than one draw-in groove.
Aforesaid pipe joint self-locking lowering or hoisting gear, wherein said self-locking group also includes a packing lining, and the packing lining is fixed this packing lining in the outside, interior keyholed back plate lower end between the second pipe joint outer side wall and the first pipe joint madial wall, the packing lining is a hollow shape, holds last inboard to be provided with an internal taper hole.
Aforesaid pipe joint self-locking lowering or hoisting gear, the upper and lower of the interior keyholed back plate upper end of wherein said self-locking group respectively runs through and is provided with certain hole, below one sidewall in hole is decided in contiguous top, be provided with one for handle stretch into microscler in a hole, both sides, interior keyholed back plate pipe lower end are run through and are provided with interior two holes, and two holes connected pin for one and install with each in perforation was aimed at, connect sell the outer end protrude in the keyholed back plate outside, the second pipe joint correspondence is provided with the following slotted hole that the company's of aligning pin installs, and connects the through hole that pin passes and be provided with for interior keyholed back plate on the packing lining.
Aforesaid pipe joint self-locking lowering or hoisting gear, the clamping sleeve member that it is characterized in that described self-locking group, be the keyholed back plate lower end and the interior rod member outside in being relatively arranged on, and inner at least two jaws that extend of at one end relative internal taper hole, each jaw is provided with a rationed marketing in order to rod member draw-in groove in the concavo-convex blocking.
Aforesaid pipe joint self-locking lowering or hoisting gear, wherein said clamping sleeve member one end forms the lining of hollow shape, the lining cover is fixed in the second pipe joint inside, it is jaw that other end of lining stretches out the second pipe joint position, jaw is in reverse to the end of lining, if be the several support parts that enlarge the circular cone sheet, inwall in opposite directions supports to arrive in several springs in the number support part, and plug-in mounting one rationed marketing is respectively being run through perpendicular to telescopic spring direction part in the support part.
Aforesaid pipe joint self-locking lowering or hoisting gear, wherein said fixture are provided with one in order to be the fixed base that is connected with second pipe joint, and linking between the inner and interior keyholed back plate of second pipe joint upper end has an elastic component.
Aforesaid pipe joint self-locking lowering or hoisting gear, the fixed base central authorities of wherein said fixture are provided with a mesopore that runs through, mesopore is for the connector plug-in mounting of a pipe joint form, and fixed base one side is cutd open in addition and is provided with the side opening that penetrates for handle for one, and fixed base runs through place, side opening side and is provided with a pivot hole.
Aforesaid pipe joint self-locking lowering or hoisting gear, wherein said second pipe joint, one end is provided with solid hole, the side opening of the corresponding fixture of downside is provided with slotted hole on, a pin assemblies is run through with the fixed base place of coincidence in the solid hole of this second pipe joint, pin assemblies is established for end hook on the elastic component in pipe, the second pipe joint sleeve is in the interior keyholed back plate outside, allows end hook is located at another pin assemblies under the elastic component, and the keyholed back plate lower position deciding on the hole in this pin assemblies ran through; The last slotted hole of this second pipe joint is aimed at an interior hole of interior keyholed back plate, the side opening of fixture, L shaped handle pivot is located on the side opening, the handle horizontal ends is provided with opening handle slot outwardly, adjacent handle slot position is provided with accurate hole, pivot hole by accurate hole secured in alignment seat is pivoted, and the handgrip groove enters in the mesopore, and keyholed back plate is positioned at the hole of deciding of below in being placed through by consistent pin, and the handle slot of handle, in order to do mat manual control internal control pipe and packing lining are formed ascending, descending.
Aforesaid pipe joint self-locking lowering or hoisting gear, end plug is adorned the fixedly plug of a hollow ring body under the wherein said first pipe joint pipe, first pipe joint is by fixing plug bottom rod member in the interior plug-in mounting, and interior rod member is through to the fixedly plug bottom surface of first pipe joint, and cooperation suit one nut breaks away from first pipe joint with rod member in the block; This first pipe joint is in pipe upper end and be positioned at the second pipe joint outer side surface plug one pipe joint plug is housed, and pipe joint is held the bigger big end of external diameter beyond the Great Wall and its bottom end of mat compresses on the first pipe joint pipe end face.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, the utility model pipe joint self-locking lowering or hoisting gear, it is that mat is pressed, put handle and produce the adjustment length requirement, the interior keyholed back plate that promptly spurs the self-locking group by squeeze grip moves down, interior keyholed back plate interlock packing lining moves down synchronously, remove the clamping sleeve member this is fixed the clamping structure state of rod member in first pipe joint, can allow the second pipe joint lifting activity, one squeeze grip is just untied the self-locking group and is locked member structure state in first pipe joint, because of spurring second pipe joint, the gripping fixture adjusts collapsing length simultaneously, once loosening handle is locked first pipe joint rapidly by the packing lining interior rod member, adjust very rapid, holding fixture when palm just can be with the synchronous squeeze grip of thumb, direct pull fixture interlock second pipe joint again, lock by the self-locking group once loosening synchronously, pressure is provided, the structure kenel of putting and locking simultaneously;
Especially, the utility model produces packing via the internal taper hole of packing lining to the support part that clamps sleeve member, relaxation state, then at the packing state, make the draw-in groove of rationed marketing and interior rod member produce embossed card making usefulness, this concavo-convex blocking effect is compeled bundle via internal taper hole again in the outside, the double brake effect is provided, allow first pipe joint, the second pipe joint locking mechanism state was both reliable, prevent that load-bearing lost efficacy and glide, further by interior rod member and the mutual concavo-convex blocking of clamping sleeve member, prevent the stable characteristics that second pipe joint can arbitrarily not rotate in first pipe joint, increase working life, have practicability.
In sum, the pipe joint self-locking lowering or hoisting gear of the utility model special construction, have above-mentioned many advantages and use value, and in like product, there is no similar structural design and published or use,, and had large improvement technically no matter it structurally or bigger improvement is all arranged on the function, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is an assembly exploded perspective view of the present utility model.
Fig. 2 is a stereo appearance figure of the present utility model.
Fig. 3 is an assembled sectional view of the present utility model, can the lifting structure state in order to explanation.
Fig. 4 is an assembled sectional view of the present utility model, can not the lifting structure state in order to the explanation self-locking.
Fig. 5 is another embodiment's planimetric map of the present utility model.
Number in the figure:
(10), first pipe joint (14), interior rod member
(20), self-locking group (21), interior keyholed back plate
(24), clamp sleeve member (241), lining
(251), support part (26), rationed marketing
(27), packing lining (30), fixture
(31), fixed base (33), elastic component
(35), handle (37), second pipe joint
(371), solid hole
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to the pipe joint self-locking lowering or hoisting gear that the utility model proposes, its embodiment, structure, feature and effect thereof, describe in detail as after.
See also Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of pipe joint self-locking of the utility model lowering or hoisting gear, it mainly comprises: one is positioned at first pipe joint (10) in the outside, and one second pipe joint (37) is installed in first pipe joint (10), second pipe joint (37) is provided with locking whether self-locking group (20) in the position that is positioned at first segment pipe (10), second pipe joint (37) stretches out outside first pipe joint (10), be provided with one and control second pipe joint (37) lifting whether fixture (30) in order to unlock, as long as whether fixture (30) is pushed, just can control lifting rapidly.Below just each cage structure is described in detail as after.
One first pipe joint (10), first pipe joint (10) is adorned a pipe joint plug (11) in the pipe upper end plug, pipe joint plug (11) the upper end bigger big end (111) of external diameter and its bottom end of mat compresses on first pipe joint (10) the pipe end face, end plug is adorned the fixedly plug (13) of a hollow ring body under first pipe joint (10) pipe, first pipe joint (10) is fitted with a recessed interior rod member (14) that draw-in groove (141) is arranged of equi-spaced apart ring vertically in the pipe by fixing plug (13) bottom, interior rod member (14) is through to fixedly plug (13) bottom surface of first pipe joint (10), cooperates suit one nut (14) to break away from first pipe joint (10) with rod member in the block (14);
One self-locking group (20), it comprises that at least keyholed back plate (21) and clamps a sleeve member (24) and a packing lining (27) in one; Wherein, interior keyholed back plate (21) upper end is run through and is provided with two and decides hole (211), (214), hole (211) downside one sidewall of deciding that is positioned at the top is established a hole (212) together, interior keyholed back plate (21) pipe both sides, lower end are run through and are provided with interior two holes (213), interior two holes (213) respectively connect pin (23) for one and install, and the company of allowing pin (23) outer end protrudes in interior keyholed back plate (21) outside, and this clamping sleeve member (24) is positioned at the below of keyholed back plate (21), this clamps the lining (241) that sleeve member (24) one ends form hollow shape, lining (241) end in addition extends at least two jaws (25), jaw (25) is in reverse to the end of lining (241), if be the support part (251) that enlarges the circular cone sheet, inwall in opposite directions supports to arrive in two springs (252) in two support parts (251), and two support parts (251) are in the direction part of stretching perpendicular to spring (252), each penetration type ground plug-in mounting one rationed marketing (26) comes and clamping sleeve member (24) and lining (241) central authorities by rationed marketing (26), interior rod member (14) between two springs (252) and the concavo-convex blocking of draw-in groove (141);
And this packing lining (27) is positioned at clamping sleeve member (24) outside, packing lining (27) is a hollow shape, the interior keyholed back plate (21) of one end correspondence, company's pin (23) are worn fixed and are provided with through hole (271), packing lining (27) is linked with interior keyholed back plate (21), packing lining (27) faces the internal taper hole (28) that the mouth of pipe is the internal diameter convergent in the end in addition, allows the support part (251) that clamps sleeve member (24) be positioned at internal taper hole (28) inside relatively;
One fixture (30), it is positioned at keyholed back plate (21) top, and fixture (30) is provided with a fixed base (31) and leader (35), uses to link second pipe joint (37); This fixed base (31) central authorities are provided with a mesopore that runs through (311), connector (32) plug-in mounting of mesopore (311) for a pipe joint form, be connected with relevant music stand assembly by connector (32), fixed base (31) one sides are cutd open in addition and are provided with one side opening (312), fixed base (31) is corresponding to be provided with a pivot hole (313) in side opening (312) one sides, side opening (312) is inserted for aforesaid handle (35), mesopore (311) then supplies second pipe joint (37) to insert, these second pipe joint (37) one ends are provided with solid hole (371), the side opening (312) of the corresponding fixture of downside (30) is provided with slotted hole on (372), the company of keyholed back plate (21) sells (23) corresponding insertion and is provided with down slotted hole (373) in the following pipe end correspondence, solid hole (371) by this second pipe joint (37) runs through fixing with fixture (30) fixed base (31) place of coincidence, such as with pin or the pin assemblies of rivet (331), go up and be positioned at mesopore (311) and second pipe joint (37) hook in pin assemblies (331) and establish on the elastic component (33), relatively, the corresponding sleeve of second pipe joint (37) is when interior keyholed back plate (21) outside, connect pin (23) correspondence and run through the following slotted hole (373) that enters second pipe joint (37), allow end hook under the elastic component (33) be located at always to be arranged in the pin assemblies (332) on the hole (211) decided of interior keyholed back plate (21), make packing lining (27) in second pipe joint (37), see through elastic component (33) and form the elasticity liter, configuration state is fallen, and second pipe joint (37) is positioned under the following slotted hole (373), be to fill in the location for the lining (241) that clamps sleeve member (24), make and clamp sleeve member (24) and second pipe joint (37), fixture (30) links together, allow packing lining (27) be set in the outer side wall of second pipe joint (37) and the madial wall of first pipe joint (10), the support part (251) of retaining clip clamping hub spare (24) is positioned at internal taper hole (28) inner face of packing lining (27); In addition, the last slotted hole (372) of this second pipe joint (37) and an interior hole (212) of interior keyholed back plate (21), the side opening (312) of fixture (30) is aimed at, be pivoted for a L-shaped handle (35), wherein handle (35) horizontal ends is provided with opening handle slot (36) outwardly, adjacent handle slot (36) position is provided with accurate hole (351), pivot hole (313) by accurate hole (351) secured in alignment seat (31) is pivoted, allow handgrip groove (36) enter into mesopore (311), decide hole (214) and the handle slot (36) of downside place consistent pin (361) (passing through pin (361) do not expose outside outside second pipe joint (37) slightly to allow interior keyholed back plate (21), make handle (35) keyholed back plate (21) in this gets interlock, squeeze grip (35) just in the may command keyholed back plate (21) form and rise, fall;
See also Fig. 1, Fig. 2, shown in Figure 4, when first pipe joint (10) is the locking normality with second pipe joint (37), the internal keyholed back plate of elastic force (21) of elastic component (33) draws active force and interlock handle (35) on producing, make fixed base (31) outside of handle (35) away from fixture (30), and internal taper hole (28) tapering of packing lining (27) forces and nearly two support parts (251) that clamp sleeve member (24) of contracting, allow concavo-convex cooperation of draw-in groove (141) of rationed marketing (26) and interior rod member (14), the length that locks first pipe joint (10) and second pipe joint (37) is can not adjust configuration state.
Otherwise, when the utility model is implemented to adjust first segment pipe (10) with the relative collapsing length of second pipe joint (37), as Fig. 2, Fig. 3, shown in Figure 4, user's hand is held the fixed base (31) of fixture (30), and finger is squeeze grip (35) simultaneously, mat handle slot (36) is pulled and is passed through pin (361), make interior keyholed back plate (21) the tensile elasticity part (33) of self-locking group (20), internally keyholed back plate (21) produces and moves down active force, then keyholed back plate (21) mat connects the packing lining (27) that pin (23) links in the interlock, make the past bottom offset of its following slotted hole (373) approach at second pipe joint (37), allow internal taper hole (28) break away from and compel support part (251) configuration state that bundle clamps sleeve member (24), the support part (251) that clamps sleeve member (24) is just strutted mutually by spring (252) elastic-restoring force, remove the draw-in groove (141) of rationed marketing (26) blocking against interior rod member (14), this moment, the user still held fixture (30), again according to side go up or under direction indication, with fixture (30) and second pipe joint (37), packing lining (27), clamp sleeve member (24), along first pipe joint (10) inwall, interior rod member (14) is toward rising or down downgrading, up to desired location, as long as hand loosens handle (35), just by the interior keyholed back plate (21) of elastic component (33) elastic-restoring force stretching self-locking group (20), part (22) is connected, packing lining (27) is towards top offset, once again by internal taper hole (28) tapering double team, two support parts (251) of the nearly clamping sleeve member (24) that therefore contracts, cause the internally concavo-convex blocking state of draw-in groove (141) formation of rod member (14) of near rationed marketing (26) that contracts mutually, pinned the state that collapsing length is adjusted between first pipe joint (10) and second pipe joint (37), not only lock jacking condition, more can prevent that second pipe joint (37) from arbitrarily rotating in first pipe joint (10) because of the concavo-convex blocking of draw-in groove (141) with rationed marketing (26).
In addition, see also shown in Figure 5ly, illustrate that the accurate hole (351) of handle (35) is hubbed at the position of fixture (30), and pass through pin (361) position and can be positioned at the top, can reach the using effect of this creation equally, be not limited to the lower position of Fig. 2.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. pipe joint self-locking lowering or hoisting gear is characterized in that it comprises:
One first pipe joint, rod member in the first pipe joint internal fixation one;
One self-locking group, self-locking group comprise that at least keyholed back plate and clamps sleeve member in one, aforementioned in the keyholed back plate lower end be provided with one and clamp sleeve member, clamp sleeve member and run through for interior rod member, and and interior rod member between can be embossed card and formulate the position;
One fixture, fixture links one second pipe joint, one end, this second pipe joint stretches in first pipe joint, between the interior keyholed back plate outside and the first pipe joint inboard, the second pipe joint pipe lower end links with the clamping sleeve member, this fixture one side leader that is pivoted, the close part that is pivoted of handle penetrates second pipe joint and forms with the internal control pipe and to link.
2. pipe joint self-locking lowering or hoisting gear according to claim 1, the interior rod member that it is characterized in that described first pipe joint spacer ring vertically is concaved with more than one draw-in groove.
3. pipe joint self-locking lowering or hoisting gear according to claim 2, it is characterized in that described self-locking group also includes a packing lining, the packing lining is between the second pipe joint outer side wall and the first pipe joint madial wall, fix this packing lining in the outside, interior keyholed back plate lower end, the packing lining is a hollow shape, holds last inboard to be provided with an internal taper hole.
4. pipe joint self-locking lowering or hoisting gear according to claim 3, the upper and lower that it is characterized in that the interior keyholed back plate upper end of described self-locking group respectively runs through and is provided with certain hole, below one sidewall in hole is decided in contiguous top, be provided with one for handle stretch into microscler in a hole, both sides, interior keyholed back plate pipe lower end are run through and are provided with interior two holes, two holes were even sold for one and are installed with each in perforation was aimed at, even sell the outer end and protrude in the interior keyholed back plate outside, the second pipe joint correspondence is provided with the following slotted hole that the company's of aligning pin installs, and connects the through hole that pin passes and be provided with for interior keyholed back plate on the packing lining.
5. pipe joint self-locking lowering or hoisting gear according to claim 3, the clamping sleeve member that it is characterized in that described self-locking group, be the keyholed back plate lower end and the interior rod member outside in being relatively arranged on, and inner at least two jaws that extend of at one end relative internal taper hole, each jaw is provided with a rationed marketing in order to rod member draw-in groove in the concavo-convex blocking.
6. pipe joint self-locking lowering or hoisting gear according to claim 5, it is characterized in that described clamping sleeve member one end forms the lining of hollow shape, the lining cover is fixed in the second pipe joint inside, it is jaw that other end of lining stretches out the second pipe joint position, jaw is in reverse to the end of lining, if be the several support parts that enlarge the circular cone sheet, inwall in opposite directions supports to arrive in several springs in the number support part, and plug-in mounting one rationed marketing is respectively being run through perpendicular to telescopic spring direction part in the support part.
7. pipe joint self-locking lowering or hoisting gear according to claim 1 is characterized in that described fixture is provided with one in order to be the fixed base that is connected with second pipe joint, and linking between the inner and interior keyholed back plate of second pipe joint upper end has an elastic component.
8. pipe joint self-locking lowering or hoisting gear according to claim 7, the fixed base central authorities that it is characterized in that described fixture are provided with a mesopore that runs through, the connector of one pipe joint form is plugged in the mesopore, fixed base one side is cutd open in addition and is provided with the side opening that penetrates for handle for one, and fixed base runs through place, side opening side and is provided with a pivot hole.
9. pipe joint self-locking lowering or hoisting gear according to claim 7, it is characterized in that described second pipe joint, one end is provided with solid hole, the side opening of the corresponding fixture of downside is provided with slotted hole on, a pin assemblies is run through with the fixed base place of coincidence in the solid hole of this second pipe joint, pin assemblies is established for end hook on the elastic component in pipe, the second pipe joint sleeve is in the interior keyholed back plate outside, allows end hook is located at another pin assemblies under the elastic component, and the keyholed back plate lower position deciding on the hole in this pin assemblies ran through; The last slotted hole of this second pipe joint is aimed at an interior hole of interior keyholed back plate, the side opening of fixture, L shaped handle pivot is located on the side opening, the handle horizontal ends is provided with opening handle slot outwardly, adjacent handle slot position is provided with accurate hole, pivot hole by accurate hole secured in alignment seat is pivoted, the handgrip groove enters in the mesopore, and keyholed back plate is positioned at the handle slot of deciding hole and handle of below in being placed through by consistent pin.
10. pipe joint self-locking lowering or hoisting gear according to claim 2, it is characterized in that end plug under the described first pipe joint pipe adorns the fixedly plug of a hollow ring body, first pipe joint is by fixing plug bottom rod member in the interior plug-in mounting, interior rod member is through to the fixedly plug bottom surface of first pipe joint, cooperates suit one nut to break away from first pipe joint with rod member in the block; This first pipe joint is in pipe upper end and be positioned at the second pipe joint outer side surface plug one pipe joint plug is housed, and pipe joint is held the bigger big end of external diameter beyond the Great Wall and its bottom end of mat compresses on the first pipe joint pipe end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292848 CN2594512Y (en) | 2002-12-31 | 2002-12-31 | Self-locking lifting device of pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292848 CN2594512Y (en) | 2002-12-31 | 2002-12-31 | Self-locking lifting device of pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2594512Y true CN2594512Y (en) | 2003-12-24 |
Family
ID=33751015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02292848 Expired - Fee Related CN2594512Y (en) | 2002-12-31 | 2002-12-31 | Self-locking lifting device of pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2594512Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822642A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Tightening slices used for fixing and connecting mechanism for interior of sanitary appliance pipe |
-
2002
- 2002-12-31 CN CN 02292848 patent/CN2594512Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822642A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Tightening slices used for fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822639A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Tightening slices used for fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822638A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822645A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822646A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822637A (en) * | 2014-04-22 | 2016-08-03 | 金方明 | Fixing and connecting mechanism for interior of sanitary appliance pipe |
| CN105822645B (en) * | 2014-04-22 | 2019-11-19 | 金方明 | Mechanism is fixedly connected in sanitary ware pipe |
| CN105822642B (en) * | 2014-04-22 | 2019-11-22 | 金方明 | The lock ring piece of mechanism is fixedly connected in pipe for cleaning ware |
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Granted publication date: 20031224 Termination date: 20101231 |