CN213889889U - Quick liftoff, formula machinery spiral strutting arrangement that contacts to earth - Google Patents
Quick liftoff, formula machinery spiral strutting arrangement that contacts to earth Download PDFInfo
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- CN213889889U CN213889889U CN202021569483.4U CN202021569483U CN213889889U CN 213889889 U CN213889889 U CN 213889889U CN 202021569483 U CN202021569483 U CN 202021569483U CN 213889889 U CN213889889 U CN 213889889U
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Abstract
The utility model provides a quick liftoff, formula mechanical spiral strutting arrangement contacts to earth, including lead screw, lead screw operating handle, clamp plate, support, by support connecting plate, swivel nut fast operating rod, swivel nut, overcoat, spacing round pin axle and compression spring, realize the displacement of swivel nut and compression spring's operating condition through swivel nut fast operating rod, realize the quick vertical motion of quick lead screw to it contacts to earth and liftoff to drive the support and realize quick. Simple operation, convenient and safe use.
Description
Technical Field
The utility model belongs to a portable rack technical field, concretely relates to formula mechanical spiral strutting arrangement liftoff fast, touch to earth, specially adapted portable aircraft repair type frock ladder frame.
Background
At present, the common spiral supporting device for large-scale tool ladder frame machinery can finely adjust the height of a supported object while improving the stability of the supported object. However, the helical support of this structure has the following disadvantages: firstly, when the moving position of the supported object needs to be released from the support, the support does not have the function of quickly leaving the ground, the screw rod needs to be manually operated to enable the support seat to be away from the ground for a certain distance (to prevent the support seat from interfering with a ground projection in the moving process), the operation process is slow, and the working efficiency is low; secondly, when the supported object moves to the working position and needs to be stably supported, the rapid touchdown function is not achieved, and the support seat is made to contact the ground and be adjusted by manually operating the screw rod, so that the working efficiency is influenced, and the labor intensity of operators is increased. There is therefore a need for improvements.
Disclosure of Invention
To the shortcoming that can not liftoff fast, touch to earth that exist among the prior art, influence work efficiency and increase operating personnel intensity of labour, the utility model provides a quick liftoff, touch to earth formula mechanical spiral strutting arrangement, when can realizing that the supporting seat touches to earth fast and liftoff function fast, after the supporting seat lands fast, can realize the fine setting to the firm regulation and the height of supporter, easy operation, convenient to use, safety.
The technical scheme of the utility model is that:
the quick ground-lift and ground-contact type mechanical spiral supporting device comprises a screw rod, a screw rod control handle, a support, a supported object connecting plate, a threaded sleeve quick control rod, a threaded sleeve, an outer sleeve and a compression spring;
one end of the screw rod is connected with an operating handle, and the operating handle can drive the screw rod to rotate; the other end of the screw rod is a ball head end which is arranged in the support to realize universal connection;
the screw sleeve is of a hollow cylindrical structure, and an internal thread is arranged in the central through hole and forms a thread pair with the screw rod; the outer side surface of the screw sleeve is a variable-diameter section with a step surface, wherein a radial bearing convex block is arranged at the joint position of the large-diameter section and the small-diameter section; the outer side surface of the large-diameter section of the screw sleeve is also connected with a screw sleeve quick control rod, and the screw sleeve can be driven to rotate by the screw sleeve quick control rod;
the outer sleeve is of a hollow structure with an axial through hole, the axial through hole is a step through hole, the upper part of the outer sleeve is a small-aperture section, the lower part of the outer sleeve is a large-aperture section, the end face of the large-aperture section is provided with a radially inward seal, and an aperture formed after the seal can be in clearance fit with the screw rod;
the outer side surface of the large-diameter section of the threaded sleeve is in clearance fit with the small-diameter section of the axial through hole of the outer sleeve, and the threaded sleeve can be coaxially inserted into the outer sleeve and coaxially moves along the outer sleeve; a step surface A is formed between the small-aperture section and the large-aperture section in the outer sleeve and is used for matching with a force bearing lug on the outer side surface of the threaded sleeve to realize force transmission; the inner side surface of the small-aperture section of the outer sleeve is also provided with an axial force bearing lug moving groove which is used as a moving space of the force bearing lug when the screw sleeve moves coaxially along the outer sleeve;
the side wall of the small-aperture section of the outer sleeve is also provided with an L-shaped radial sliding chute, one section of the L-shaped radial sliding chute is arranged along the axial direction of the outer sleeve, and the other section of the L-shaped radial sliding chute is arranged along the circumferential direction of the outer sleeve; the L-shaped radial chute is used for being matched with a screw sleeve quick operating rod installed on a screw sleeve, when the screw sleeve quick operating rod moves in an axial section of the L-shaped radial chute, the screw sleeve can be driven to coaxially move along the outer sleeve, when the screw sleeve quick operating rod moves to the lowest end along the axial section of the L-shaped radial chute, a bearing convex block of the screw sleeve is flush with a step surface A in the outer sleeve, and the screw sleeve quick operating rod moves along a circumferential section of the L-shaped radial chute, so that the bearing convex block of the screw sleeve is separated from a bearing convex block moving groove and is in contact with the step surface A in the outer sleeve;
the outer side surface of the outer sleeve is also provided with a supported object connecting plate;
the compression spring is sleeved on the small-diameter section of the threaded sleeve and is positioned in the large-diameter section of the outer sleeve, and two ends of the compression spring are respectively constrained by a step surface on the outer side surface of the threaded sleeve and a seal of the end surface of the large-diameter section of the outer sleeve.
Furthermore, after the spherical end of the screw rod is contacted with the spherical surface of the support, the pressing plate is prevented from falling off and is fixedly connected with the support through screws.
Furthermore, the top end of the screw sleeve is provided with a radial bulge which is used for being matched with the top end surface of the outer sleeve;
the top end radial bulge of the screw sleeve and the top end face of the outer sleeve are provided with limiting pin holes, and when the screw sleeve quick operating rod moves to the lowest end along the axial section in the L-shaped radial sliding groove, the top end radial bulge of the screw sleeve is attached to the top end face of the outer sleeve; when the screw sleeve quick operating rod moves to the innermost end of the circumferential section along the circumferential section in the L-shaped radial sliding groove, the position of the limiting pin hole protruding in the radial direction at the top end of the screw sleeve corresponds to the position of the limiting pin hole in the top end face of the outer sleeve, and the limiting pin shaft can be inserted into the limiting pin holes of the screw sleeve and the outer sleeve.
Furthermore, the limiting pin shaft is tied on the screw sleeve by adopting an anti-lost rope bolt.
Furthermore, the supported object connecting plate 5 and the outer sleeve 8 are connected by welding or integrally processed.
Advantageous effects
The utility model provides a pair of formula machinery spiral strutting arrangement liftoff fast, contacts to earth can realize that the supporting seat contacts to earth fast and liftoff function fast, and the back is landed fast to the supporting seat simultaneously, can realize the fine setting to the firm regulation and the height of supporter. Can improve the working efficiency and reduce the labor intensity of operators.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of the ground-contacting state of the present invention;
fig. 2 is a profile view of the ground-contacting state of the present invention;
FIG. 3 is a view showing the appearance of the utility model in a state of being lifted off the ground;
FIG. 4 is a view showing the appearance of the utility model in a state of being lifted off the ground;
fig. 5 is a sectional view showing a ground contact state of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
fig. 7 is a sectional view of the present invention in a state of being lifted off the ground;
FIG. 8 is a cross-sectional view B-B of FIG. 7;
wherein: 1. a screw rod; 2. a screw rod control handle; 3. pressing a plate; 4. a support; 5. a supported object connecting plate; 6. a screw sleeve quick operating rod; 7. a threaded sleeve; 8. a jacket; 9. a limiting pin shaft; 10. a compression spring; 11. a jacket chute; 12. A limit pin hole; 13. a force bearing lug moving groove; 14. a force bearing convex block.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The embodiment provides a quick ground-lifting and ground-contacting type mechanical spiral supporting device which comprises a screw rod 1, a screw rod control handle 2, a pressing plate 3, a support 4, a supported object connecting plate 5, a screw sleeve quick control rod 6 (2), a screw sleeve 7, an outer sleeve 8, a limiting pin shaft 9 and a compression spring 10.
One end of the screw rod 1 is connected with the operating handle 2, the operating handle 2 can drive the screw rod 1 to rotate, and the screw rod 1 is operated to finely adjust the height and stably adjust the height. The other end of the screw rod 1 is a ball end, the ball end is in contact with the spherical surface of the support 4 and is prevented from falling off through the pressing plate 3, and the pressing plate 3 is connected with the support 4 through screws.
The screw sleeve 7 is a key structure of the utility model, and is a hollow cylindrical structure, and the central through hole is provided with internal threads which can be matched with the coaxial threads of the screw rod 1; the top end of the screw sleeve 7 is provided with a radial bulge for matching with the top plane of the outer sleeve 8; the outer side surface of the screw sleeve 7 is a reducer section with a step surface, wherein a radial bearing lug is arranged at the joint position of the large-diameter section and the small-diameter section, and the bearing lug is mainly used for being matched with the step surface A in the outer sleeve 8 to realize force transmission; and the step surface formed by the large-diameter section and the small-diameter section is used for providing one end constraint of the compression spring 10 sleeved on the small-diameter section of the screw sleeve 7. The lateral surface of the large-diameter section of the screw sleeve 7 is also connected with a screw sleeve quick control lever 6, the screw sleeve quick control lever 6 is perpendicular to the central axis of the screw sleeve 7, and the screw sleeve 7 can be conveniently driven to rotate through the screw sleeve quick control lever 6.
The overcoat 8 is the utility model discloses in with another key structure that the swivel nut 7 is supporting, its hollow structure for having axial through hole, axial through hole are the step through-hole, and upper portion is the aperture section, and the lower part is the aperture section, and aperture section terminal surface has radial inside and seals, seals the drill way that forms after can with 1 clearance fit of lead screw.
The outer side surface of the large-diameter section of the threaded sleeve 7 is in clearance fit with the small-diameter section of the axial through hole of the outer sleeve 8, and the threaded sleeve 7 can be coaxially inserted into the outer sleeve 8 and coaxially moves along the outer sleeve 8. And a step surface A is formed between the small-aperture section and the large-aperture section in the outer sleeve 8 and is used for matching with a bearing convex block on the outer side surface of the thread sleeve 7 to realize force transmission. An axial force bearing lug moving groove is also arranged on the inner side surface of the small-aperture section of the outer sleeve 8 and is used as a moving space of the force bearing lug when the threaded sleeve 7 moves coaxially along the outer sleeve 8.
Still have the radial spout of L shape on the lateral wall of the aperture section of overcoat 8, 8 axial along the overcoat is followed to one section spout in the radial spout of L shape, 8 circumference along the overcoat in another section spout, the radial spout of L shape is used for the swivel nut quick-operation rod 6 cooperation with installation on the swivel nut 7, when swivel nut quick-operation rod 6 removes in the axial section of the radial spout of L shape, can drive swivel nut 7 along 8 coaxial displacements of overcoat, when the swivel nut quick-operation rod 6 removes to the bottom along the axial section in the radial spout of L shape, the load lug of swivel nut 7 and the step face A parallel and level in the overcoat 8, the circumference section removal in the radial spout of L shape is followed to swivel nut quick-operation rod 6 this moment, make the load lug of swivel nut 7 and the step face A contact in the overcoat 8.
The top end radial protrusion of the screw sleeve 7 and the top end face of the outer sleeve 8 are provided with limiting pin holes, and when the screw sleeve quick control rod 6 moves to the lowest end along the axial section in the L-shaped radial sliding groove, the top end radial protrusion of the screw sleeve 7 is attached to the top end face of the outer sleeve 8; when the screw sleeve quick control rod 6 moves to the innermost end of the circumferential section along the circumferential section in the L-shaped radial sliding groove, the position of a limit pin hole which is radially protruded at the top end of the screw sleeve 7 corresponds to the position of a limit pin hole on the top end face of the outer sleeve 8, and at the moment, the limit pin shaft 9 is inserted into the limit pin holes of the screw sleeve 7 and the outer sleeve 8, so that the screw sleeve 7 can be prevented from being driven to rotate simultaneously when the screw rod rotates, and the stable supporting and adjusting are influenced; the limit pin shaft 9 is tied on the thread insert 7 by adopting an anti-lost rope.
The outer side surface of the outer sleeve 8 is also provided with a supported object connecting plate 5, and the supported object connecting plate 5 and the outer sleeve 8 are connected by welding or integrally processed.
The compression spring 10 is sleeved on the small-diameter section of the threaded sleeve 7 and is positioned in the large-diameter section of the outer sleeve 8, and two ends of the compression spring are respectively constrained by a step surface on the outer side surface of the threaded sleeve 7 and a seal of the end surface of the large-diameter section of the outer sleeve 8.
The device is mainly installed at the bottom of a ladder frame or a large platform through a supported object connecting plate, and the working state of a compression spring 10 is controlled through the external arrangement of a threaded sleeve quick control rod 6 in an L-shaped outer sleeve sliding groove of an outer sleeve 8, so that the support 4 can be quickly lifted off the ground and contacted with the ground. And the control handle 2 drives the screw rod 1 and the screw sleeve 7 to rotate relatively to realize fine adjustment and stable adjustment of height. The specific working mode is as follows:
quick touchdown: the quick operating rod 6 of the control screw sleeve moves to a circumferential limit position from an axial part in the outer sleeve chute (when the quick operating rod 6 of the screw sleeve is at the axial part of the outer sleeve chute, a bearing lug in the screw sleeve 7 is positioned in a bearing lug moving groove of the outer sleeve 8), the moving process can drive the screw sleeve 7 to move downwards, the screw sleeve 7 moves downwards to drive the screw rod 1 to move downwards quickly while realizing the compression state of the compression spring 10, the quick downward movement of the screw rod 1 drives the support 4 to contact with the ground quickly, after the process is finished, the upper part of the bearing lug of the screw sleeve 7 is contacted with the step A of the outer sleeve 8 (the gravity of the support piece is transmitted to the outer sleeve 8 through the connecting plate 5 and transmitted to the bearing lug of the screw sleeve 7 through the step A of the outer sleeve 8 and transmitted to the screw rod 1 through the screw rod 1, the limit pin holes on the outer sleeve 8 and the screw sleeve 7 are aligned with each other, the limiting pin 9 is inserted into the pin hole (the screw rod is prevented from driving the threaded sleeve to rotate simultaneously when rotating, so that the stable supporting and adjusting are influenced), and the screw rod 1 is controlled to finely adjust the height and stably adjust the height.
Quickly separating from the ground: the positioning pin 9 is pulled out, the screw sleeve quick control rod 6 moves to an axial position from the circumferential limit position of the outer sleeve sliding groove of the outer sleeve 8, the compression spring releases energy in the process, the screw sleeve 7 drives the screw rod 1 to move up quickly (the bearing convex block in the screw sleeve 7 is positioned in the bearing convex block moving groove of the outer sleeve 8 in the moving up process), the screw rod 1 moves up quickly to drive the support 4 to move up quickly, and the quick ground leaving is realized.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (5)
1. The utility model provides a quick liftoff, formula machinery spiral strutting arrangement that touches ground which characterized in that: comprises a screw rod, a screw rod control handle, a support, a supported object connecting plate, a swivel nut quick control lever, a swivel nut, an outer sleeve and a compression spring;
one end of the screw rod is connected with an operating handle, and the operating handle can drive the screw rod to rotate; the other end of the screw rod is a ball head end which is arranged in the support to realize universal connection;
the screw sleeve is of a hollow cylindrical structure, and an internal thread is arranged in the central through hole and forms a thread pair with the screw rod; the outer side surface of the screw sleeve is a variable-diameter section with a step surface, wherein a radial bearing convex block is arranged at the joint position of the large-diameter section and the small-diameter section; the outer side surface of the large-diameter section of the screw sleeve is also connected with a screw sleeve quick control rod, and the screw sleeve can be driven to rotate by the screw sleeve quick control rod;
the outer sleeve is of a hollow structure with an axial through hole, the axial through hole is a step through hole, the upper part of the outer sleeve is a small-aperture section, the lower part of the outer sleeve is a large-aperture section, the end face of the large-aperture section is provided with a radially inward seal, and an aperture formed after the seal can be in clearance fit with the screw rod;
the outer side surface of the large-diameter section of the threaded sleeve is in clearance fit with the small-diameter section of the axial through hole of the outer sleeve, and the threaded sleeve can be coaxially inserted into the outer sleeve and coaxially moves along the outer sleeve; a step surface A is formed between the small-aperture section and the large-aperture section in the outer sleeve and is used for matching with a force bearing lug on the outer side surface of the threaded sleeve to realize force transmission; the inner side surface of the small-aperture section of the outer sleeve is also provided with an axial force bearing lug moving groove which is used as a moving space of the force bearing lug when the screw sleeve moves coaxially along the outer sleeve;
the side wall of the small-aperture section of the outer sleeve is also provided with an L-shaped radial sliding chute, one section of the L-shaped radial sliding chute is arranged along the axial direction of the outer sleeve, and the other section of the L-shaped radial sliding chute is arranged along the circumferential direction of the outer sleeve; the L-shaped radial chute is used for being matched with a screw sleeve quick operating rod installed on a screw sleeve, when the screw sleeve quick operating rod moves in an axial section of the L-shaped radial chute, the screw sleeve can be driven to coaxially move along the outer sleeve, when the screw sleeve quick operating rod moves to the lowest end along the axial section of the L-shaped radial chute, a bearing convex block of the screw sleeve is flush with a step surface A in the outer sleeve, and the screw sleeve quick operating rod moves along a circumferential section of the L-shaped radial chute, so that the bearing convex block of the screw sleeve is separated from a bearing convex block moving groove and is in contact with the step surface A in the outer sleeve;
the outer side surface of the outer sleeve is also provided with a supported object connecting plate;
the compression spring is sleeved on the small-diameter section of the threaded sleeve and is positioned in the large-diameter section of the outer sleeve, and two ends of the compression spring are respectively constrained by a step surface on the outer side surface of the threaded sleeve and a seal of the end surface of the large-diameter section of the outer sleeve.
2. The mechanical screw support device of claim 1, wherein: after the ball end of the screw rod is contacted with the spherical surface of the support, the pressing plate is prevented from falling off, and the pressing plate is fixedly connected with the support through screws.
3. The mechanical screw support device of claim 1, wherein: the top end of the screw sleeve is provided with a radial bulge which is used for matching with the top end surface of the outer sleeve;
the top end radial bulge of the screw sleeve and the top end face of the outer sleeve are provided with limiting pin holes, and when the screw sleeve quick operating rod moves to the lowest end along the axial section in the L-shaped radial sliding groove, the top end radial bulge of the screw sleeve is attached to the top end face of the outer sleeve; when the screw sleeve quick operating rod moves to the innermost end of the circumferential section along the circumferential section in the L-shaped radial sliding groove, the position of the limiting pin hole protruding in the radial direction at the top end of the screw sleeve corresponds to the position of the limiting pin hole in the top end face of the outer sleeve, and the limiting pin shaft can be inserted into the limiting pin holes of the screw sleeve and the outer sleeve.
4. A quick ground-lift, ground-contacting mechanical screw support device according to claim 3, wherein: the limiting pin shaft is tied on the screw sleeve by adopting an anti-lost rope bolt.
5. The mechanical screw support device of claim 1, wherein: the supported object connecting plate and the outer sleeve are connected by welding or integrally processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021569483.4U CN213889889U (en) | 2020-08-02 | 2020-08-02 | Quick liftoff, formula machinery spiral strutting arrangement that contacts to earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021569483.4U CN213889889U (en) | 2020-08-02 | 2020-08-02 | Quick liftoff, formula machinery spiral strutting arrangement that contacts to earth |
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| Publication Number | Publication Date |
|---|---|
| CN213889889U true CN213889889U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021569483.4U Active CN213889889U (en) | 2020-08-02 | 2020-08-02 | Quick liftoff, formula machinery spiral strutting arrangement that contacts to earth |
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| CN (1) | CN213889889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023055724A1 (en) * | 2021-09-29 | 2023-04-06 | Milwaukee Electric Tool Corporation | Router |
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2020
- 2020-08-02 CN CN202021569483.4U patent/CN213889889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023055724A1 (en) * | 2021-09-29 | 2023-04-06 | Milwaukee Electric Tool Corporation | Router |
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