CN216544326U - Tight frock in top - Google Patents
Tight frock in top Download PDFInfo
- Publication number
- CN216544326U CN216544326U CN202122759637.7U CN202122759637U CN216544326U CN 216544326 U CN216544326 U CN 216544326U CN 202122759637 U CN202122759637 U CN 202122759637U CN 216544326 U CN216544326 U CN 216544326U
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- Prior art keywords
- driving gear
- shaft core
- annular groove
- adapter
- jacking
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- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005187 foaming Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a jacking tool which comprises an adapter, a driving gear, a driving mechanism, a shaft core and a jacking cylinder, wherein the adapter is arranged on the top of the jacking cylinder; the driving gear is rotatably arranged on the adapter; the driving mechanism is connected with and drives the driving gear to rotate; the shaft core is provided with an external thread and a driven gear; the shaft core is rotatably arranged on the adapter, the axis of the shaft core is vertical to the axis of the driving gear, and the driven gear is meshed with the driving gear; the inner wall of the top cylinder is provided with internal threads, and the top cylinder is connected with the shaft core through threads; the outer wall of the top cylinder is provided with a rotation stopping structure for limiting the rotation of the top cylinder. Compared with the prior art, the jacking tool provided by the utility model controls the jacking length through the rotation of the threads, and is suitable for holes with different sizes; and convert the horizontal rotation of driving gear into driven gear's longitudinal rotation, it has great operating space to have solved the tight instrument in top and need the vertical direction when screwing to move, and the foaming plate thickness is low, and the vertical direction space is narrow and small, and the tight instrument in top is screwed and is moved the difficult problem.
Description
Technical Field
The utility model relates to the technical field of jacking equipment, in particular to a jacking tool.
Background
At present, foam boards need to be subjected to heat preservation foaming in a laminating machine, the thickness of the foam boards is not higher than 5 cm, and some foam boards need to be provided with larger holes for installing an access door; in order to meet the production requirements and avoid hole edge deformation and flash, the hole edge needs to be tightly pressed. At present, the hose is usually used for tightly propping the edge of the hole, but the hose is not enough in pressure and easy to deform, and because the length of the hose is fixed, the hose with one length can only be suitable for holes with single hole diameter, and cannot be used for holes with different sizes.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects that the length of a hose is fixed when the hose is used for jacking the edge of a hole in the prior art and the hose is not suitable for holes with different sizes, the utility model aims to provide a jacking tool which controls the jacking length through screw rotation and is suitable for holes with different sizes.
The utility model provides a jacking tool, which comprises:
an adapter;
the driving gear is rotatably arranged on the adapter;
the driving mechanism is connected with the driving gear and is used for driving the driving gear to rotate;
the shaft core is provided with external threads at least at one end, and the outer circumferential surface of the shaft core is also provided with a driven gear; the shaft core is rotatably arranged on the adapter, the axis of the shaft core is vertical to the axis of the driving gear, and the driven gear is meshed with the driving gear; the inner wall of the top barrel is provided with an internal thread matched with the external thread, and the top barrel is connected with the shaft core through the thread; and the outer wall of the top barrel is provided with a rotation stopping structure for limiting the rotation of the top barrel.
The jacking tool controls the jacking length through the rotation of the threads, and is suitable for holes with different sizes; and through the transmission of two looks vertically gears, convert the horizontal rotation of driving gear into driven gear's vertical rotation, it has great operating space to have solved when the tight instrument of top is screwed and is moved need the vertical direction, and the foaming plate thickness is low, and the vertical direction space is narrow and small, and the tight instrument of top is screwed and is moved the difficult problem.
Preferably, the drive mechanism includes a handle connected to the drive gear.
Preferably, a non-circular jack is formed in the middle of the end face of the driving gear, a protruding block matched with the jack in shape is arranged on the handle, and the driving gear and the handle are detachably connected through the jack and the protruding block. The handle is arranged, so that an operator can conveniently rotate the driving gear, and the handle can be detached after being tightly pushed, so that the interference of the handle to foaming is avoided.
Preferably, the outer edge of the handle is provided with a handle, and the handle can be conveniently and laborsavingly rotated by an operator through the handle.
Preferably, the handle includes connecting portion and handheld portion, handheld portion with connecting portion rotate to be connected, connecting portion with the handle passes through threaded connection. So set up and make operator's hand and handheld portion keep static relatively when rotating the hand crank, can effectively reduce the friction damage to the hand when the operation of being convenient for.
Preferably, the driving mechanism is a motor, and an output shaft of the motor is connected with and drives the driving gear to rotate. Meanwhile, a remote control device and a battery can be added, the motor is powered by the battery, and the operation of the motor is controlled by the remote control device.
Preferably, a first mounting hole is formed in the adapter, and the driving gear is rotatably arranged in the first mounting hole; the driving mechanism is arranged in the first mounting hole, extends into the through hole in the surface cover and is connected with the driving gear. Through setting up the face lid, can effectively restrict the driving gear and remove along its circumference to cover the teeth of a cogwheel of first mounting hole and driving gear through the face lid, effectively prevent dust and effectively prevent that operator's limbs, clothing or hair from stretching into and rotating between the teeth of a cogwheel, security when improving the operation.
Preferably, the lower part of the driving gear is provided with gear teeth, and the side surface of the upper part of the gear is provided with a first annular groove; the surface cover is provided with a boss, a through hole in the surface cover penetrates through the boss, and a second annular groove is formed in the through hole; the upper part of the driving gear is inserted into the through hole, and the driving gear and the surface cover form bearing connection through the first annular groove, the second annular groove and steel balls arranged in the first annular groove and the second annular groove.
In other embodiments, a support column is arranged on the adapter, a through hole is arranged on the driving gear, and the support column is inserted into the through hole, so that the driving gear and the adapter can be rotatably connected. The support column can also be provided with a through hole and a bolt, and the bolt arranged in the through hole can block the driving gear from being separated from the support column.
Preferably, the adapter is provided with a second mounting hole, and the inner wall of the second mounting hole is provided with a third annular groove; be provided with fourth annular groove on the outer periphery of axle core, the axle core inserts in the second mounting hole, the axle core with the adapter passes through third annular groove fourth annular groove and device are in steel ball formation bearing in third annular groove and the fourth annular groove is connected. The adapter and the shaft core are connected through the bearing, so that the adapter and the shaft core are not separated, and the meshing of the driving gear and the driven gear is ensured. And the friction force when the shaft core rotates can be effectively reduced through the bearing connection.
Preferably, both ends of the shaft core are provided with external threads, and the thread directions of the external threads at both ends are opposite; the two top cylinders are arranged at two ends of the shaft core respectively and are in threaded connection with the shaft core. The jacking cylinders are arranged on the two sides of the shaft core, so that the jacking tool can stretch out and draw back quickly, and the working efficiency is improved.
Preferably, be located the adapter with between the external screw thread be provided with manual rotating part on the axle core, manual rotating part is for setting up the regular prism column structure in axle core lateral surface, like rectangular pyramid, pentaprism, hexagonal prism, eight prism etc. so can be convenient for manual rotation axle core.
Preferably, the top cylinder is of a multi-layer nested structure, and the top cylinder can extend or contract through the axial sliding among the cylinders in each layer; the inner wall of the innermost barrel is provided with an internal thread matched with the external thread, and the innermost barrel is connected with the shaft core through the thread; and the outer wall of the outermost barrel body is provided with a rotation stopping structure for limiting the rotation of the top barrel. Through setting up the ejector sleeve into the telescopic structure, during the use, can adjust the ejector sleeve earlier to suitable length, adjust the whole length in tight frock in top at the beginning of rotatory gear, so can make the tight frock in top adapt to bigger hole, avoid the remodelling.
Preferably, the rotation stopping structure is a plurality of protrusions which are arranged in a plane or at intervals.
Compared with the prior art, the jacking length is controlled by the rotation of the screw thread, and the device is suitable for holes with different sizes; and through the transmission of two looks vertically gears, convert the horizontal rotation of driving gear into driven gear's vertical rotation, it has great operating space to have solved when the tight instrument of top is screwed and is moved need the vertical direction, and the foaming plate thickness is low, and the vertical direction space is narrow and small, and the tight instrument of top is screwed and is moved the difficult problem.
The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the utility model is achieved.
Drawings
The utility model will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:
fig. 1 is a front view of a tightening tool according to an embodiment of the present invention;
fig. 2 is a top view of a tightening tool according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a jacking tool provided in an embodiment of the present invention (the steel ball is omitted);
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a front view of a drive gear according to one embodiment of the present invention;
FIG. 6 is a top view of a drive gear according to one embodiment of the present invention;
FIG. 7 is a perspective view of a drive gear according to one embodiment of the present invention;
FIG. 8 is a schematic structural view of a handle according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a hand crank according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an adapter according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a face cover according to an embodiment of the present invention;
FIG. 12 is a front view of a spindle provided in accordance with one embodiment of the present invention (with the external threads omitted);
FIG. 13 is a perspective view of a spindle provided in accordance with an embodiment of the present invention (with external threads omitted);
fig. 14 is a schematic structural view of a top cylinder according to an embodiment of the present invention.
Description of the reference numerals:
1. a driving gear; 2. a handle; 3. c, shaking the hand; 4. an adapter; 5. a face cover; 6. a shaft core; 7. a top cylinder; 8. a driven gear; 9. a jack; 10. a bump; 11. a boss; 12. a through hole; 13. a rotation stopping structure; 14. a first mounting hole; 15. a second mounting hole; 16. a first annular groove; 17. a second annular groove; 18. a third annular groove; 19. a fourth annular groove; 20. a manual rotation section; 21. gear teeth; 22. a connecting portion; 23. a hand-held portion; 24. and a screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more complete, the following technical solutions of the present invention will be described in detail, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the specific embodiments of the present invention belong to the protection scope of the present invention.
The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1 to 4, the jacking tool mainly includes an adapter 4, a driving gear 1, a driving mechanism, a shaft core 6 and a jacking cylinder 7. The adapter 4 is used for bearing the driving gear 1 and the shaft core 6, so that the driving gear 1 and the shaft core 6 can be rotatably arranged on the adapter 4; the driving mechanism is used for connecting and driving the driving gear 1 to rotate; the shaft core 6 is provided with an external thread and a driven gear 8, and the shaft core 6 is in threaded connection with the top cylinder 7 through the external thread; the axis of axle core 6 is mutually perpendicular with the axis of driving gear 1, and driven gear 8 and the meshing of driving gear 1 drive driven gear 8 and axle core 6 when driving gear 1 rotates and rotate, restrict the apical cylinder 7 through the structure 13 that splines on the apical cylinder 7 simultaneously and rotate to rotate the axle core 6 and turn into the linear motion of apical cylinder 7, make the tight frock in top extension or shorten.
As shown in fig. 5 to 7, the lower portion of the driving gear 1 is provided with gear teeth 21, and the side surface of the upper portion of the gear is provided with a first annular groove 16; the middle part of the end surface of the driving gear 1 is provided with a square jack 9.
As shown in fig. 1, 8 and 9, the driving mechanism includes a handle 2, the handle 2 is disc-shaped, a square projection 10 matching with the shape of the insertion hole 9 is arranged at the bottom of the handle 2, the driving gear 1 and the handle 2 are detachably connected through the insertion hole 9 and the projection 10, and after the projection 10 is inserted into the insertion hole 9, the gear can be driven to rotate by rotating the handle 2. The outer edge of the handle 2 is also provided with a handle 3, the handle 3 comprises a connecting part 22 and a handheld part 23, and the handheld part 23 is sleeved on the top of the connecting part 22 and is rotatably connected with the connecting part 22; the bottom of the connecting part 22 is provided with an external thread, the outer edge of the handle 2 is provided with a screw hole 24, and the connecting part 22 is screwed into the screw hole 24 to be connected with the handle 2 through the thread.
The shape of the jack 9 on the driving gear 1 can be triangular, pentagonal, hexagonal and other polygons, or elliptical, semicircular and the like besides the square shape; the shape of the projection 10 on the handle 2 may be a triangle, a pentagon, a hexagon, or other polygons, or an ellipse, a semicircle, or the like, corresponding to the shape of the insertion hole 9.
As shown in fig. 10, the adapter 4 is provided with a first mounting hole 14 and a second mounting hole 15 at the top and the side thereof, respectively.
The first mounting hole 14 is a blind hole, the driving gear 1 is mounted in the first mounting hole 14, and the handle 2 is disposed outside the first mounting hole 14. The first mounting hole 14 is covered with a surface cover 5, and the surface cover 5 is fixed on the adapter 4 through screws. The middle of the bottom surface of the face cover 5 has a boss 11 protruding downward, and a through hole 12 in the face cover 5 penetrates the top surface of the face cover 5 and the boss 11 (see fig. 11). A second annular groove 17 is provided in the through hole 12. The upper portion of the driving gear 1 is inserted into the through hole 12, the first annular groove 16 and the second annular groove 17 enclose to form a cavity, a steel ball (not shown in the figure) is arranged in the cavity, the steel ball is in contact with the first annular groove 16 and the second annular groove 17, the driving gear 1 and the face cover 5 form bearing connection through the first annular groove 16, the second annular groove 17 and the steel ball arranged in the first annular groove 16 and the second annular groove 17, and friction force generated when the driving gear 1 rotates can be effectively reduced through the bearing connection. Through setting up face lid 5, can effectively restrict driving gear 1 and follow its circumference and remove to cover the teeth of a cogwheel 21 of first mounting hole 14 and driving gear 1 through face lid 5, effectively prevent dust and effectively prevent that operator's limbs, clothing or hair from stretching into and rotating between the teeth of a cogwheel 21, security when improving the operation.
The second mounting hole 15 is a through hole 12 penetrating the adapter 4, and the second mounting hole 15 communicates with the first mounting hole 14. The inner wall of the second mounting hole 15 is provided with a third annular groove 18.
As shown in fig. 12 and 13, the two ends of the shaft core 6 are provided with external threads, and the thread directions of the external threads at the two ends are opposite. The outer circumference of the middle part of the shaft core 6 is also provided with a driven gear 8 and a fourth annular groove 19, and the fourth annular groove 19 can be arranged at the right side of the driven gear 8. The shaft core 6 passes through the second mounting hole 15, the part of the shaft core 6 provided with the driven gear 8 and the fourth annular groove 19 is positioned in the second mounting hole 15, and the driving gear 1 and the driven gear 8 are meshed at the communication part of the first mounting hole 14 and the second mounting hole 15; both ends of the shaft core 6 and the external threads thereon are exposed outside the second mounting hole 15. The third annular groove 18 and the fourth annular groove 19 enclose a cavity, a steel ball (not shown in the figure) is arranged in the cavity, the steel ball is in contact with the third annular groove 18 and the fourth annular groove 19, and the steel balls arranged in the first annular groove 16 and the second annular groove 17 form bearing connection. The shaft core 6 and the adapter 4 form a bearing connection through a third annular groove 18, a fourth annular groove 19 and steel balls arranged in the third annular groove 18 and the fourth annular groove 19. The adapter 4 and the shaft core 6 are connected through the bearing, so that the adapter 4 and the shaft core 6 can be prevented from being separated, and the driving gear 1 and the driven gear 8 are meshed. And the friction force when the shaft core 6 rotates can be effectively reduced through the bearing connection.
Preferably, a portion of the central portion of the spindle 6 exposed out of the second mounting hole 15 is provided in a regular octagonal prism shape, which may be provided at the right side of the fourth annular groove 19, so as to facilitate the manual rotation of the spindle 6.
In the tightening device shown in fig. 1, both the driving gear 1 and the driven gear 8 are cylindrical gears; in other embodiments, the driving gear 1 and the driven gear 8 may be bevel gears, such as 45 ° bevel gears.
As shown in fig. 14, two top cylinders 7 are provided, the inner wall of the top cylinder 7 is provided with an internal thread matching with the corresponding external thread, and the two top cylinders 7 are respectively provided at two ends of the mandrel and are in threaded connection with the mandrel 6. In order to convert the rotation of the shaft core 6 into the linear movement of the top barrel 7, the outer wall of the top barrel 7 is provided with a rotation stopping structure 13 for limiting the rotation of the top barrel 7, for example, the end part of the top barrel 7 is set to be a square structure, and the plane of the square structure is in contact with the plane during work, so that the top barrel 7 cannot rotate along with the rotation of the shaft core 6, the top barrel 7 and the shaft core 6 move relatively, the top barrel 7 moves towards the two ends of the shaft core 6 or moves towards the center (due to the determination of the rotation direction of the shaft core 6), and the jacking tool is extended or shortened, so that the jacking effect of holes in a certain width range is met. The jacking cylinders 7 are arranged on the two sides of the shaft core 6, so that the jacking tool can stretch out and draw back quickly, and the working efficiency is improved. Preferably, the top cylinder 7 is of a multi-layer nested structure, and the top cylinder 7 can extend or contract through the axial sliding among the cylinder bodies of all layers, and is similar to a telescopic umbrella handle of a foldable umbrella; the inner wall of the innermost barrel is provided with an internal thread matched with the external thread, and the innermost barrel is connected with the shaft core 6 through the thread; the outer wall of the outermost barrel body is provided with a rotation stopping structure 13 for limiting the rotation of the top barrel 7. Through setting up a section of thick bamboo 7 into the telescopic structure, during the use, can adjust a section of thick bamboo 7 earlier to suitable length, adjust the whole length in tight frock in top at the beginning of rotary gear, so can make the tight frock in top adapt to bigger hole, avoid the remodelling.
The jacking tool provided by the utility model can be used for jacking the hole edge of the foaming plate, and solves the problem of narrow space in the vertical direction by replacing longitudinal rotation with transverse rotation. The specific operation when in use is as follows:
the jacking tool is placed in a hole of a foaming plate on a bearing plate, a lug 10 at the lower end of a handle 2 is inserted into a jack 9 in an aligning manner, a handle 3 is rotated to drive the handle 2 to rotate, the handle 2 drives a driving gear 1 to rotate through a square jack 9, a driven gear 8 meshed with the driving gear 1 rotates, and the driven gear 8 drives a shaft core 6 to rotate; because the front end of the top barrel 7 is of a square structure, the main body rotates, the top barrel 7 does not rotate, linear movement can be achieved only along the axial direction of the shaft core 6, and the top tightening tool extends to push two sides of the hole tightly. After the tight jacking, the handle 2 is taken out; pressing the bearing plate to start pouring and foaming. After foaming is finished, the handle 2 is inserted, the rotation is performed in the opposite direction, the jacking tool is shortened, and the tool is convenient to take out.
Finally, it should be noted that: the above embodiments and examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments or examples may still be modified, or some of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments or examples of the present invention.
Claims (13)
1. The utility model provides a tight frock in top which characterized in that includes:
an adapter;
the driving gear is rotatably arranged on the adapter;
the driving mechanism is connected with the driving gear and is used for driving the driving gear to rotate;
the shaft core is provided with external threads at least at one end, and the outer circumferential surface of the shaft core is also provided with a driven gear; the shaft core is rotatably arranged on the adapter, the axis of the shaft core is vertical to the axis of the driving gear, and the driven gear is meshed with the driving gear; and
the inner wall of the top barrel is provided with an internal thread matched with the external thread, and the top barrel is connected with the shaft core through a thread; and the outer wall of the top barrel is provided with a rotation stopping structure for limiting the rotation of the top barrel.
2. The jacking tool of claim 1, wherein the driving mechanism comprises a handle, and the handle is connected with the driving gear.
3. The jacking tool as claimed in claim 2, wherein a non-circular insertion hole is formed in the middle of the end face of the driving gear, a projection matched with the insertion hole in shape is formed on the handle, and the driving gear and the handle are detachably connected through the insertion hole and the projection.
4. The jacking tool according to claim 2, wherein a hand crank is arranged on the outer edge of the handle.
5. The jacking tool according to claim 4, wherein the handle comprises a connecting part and a handheld part, the handheld part is rotatably connected with the connecting part, and the connecting part is connected with the handle through threads.
6. The jacking tool according to claim 1, wherein the driving mechanism is a motor, and an output shaft of the motor is connected with and drives the driving gear to rotate.
7. The jacking tool according to claim 1, wherein a first mounting hole is formed in the adapter, and the driving gear is rotatably arranged in the first mounting hole; the driving mechanism is arranged in the first mounting hole, extends into the through hole in the surface cover and is connected with the driving gear.
8. The jacking tool according to claim 7, wherein gear teeth are arranged on the lower portion of the driving gear, and a first annular groove is formed in the side face of the upper portion of the driving gear; the surface cover is provided with a boss, a through hole in the surface cover penetrates through the boss, and a second annular groove is formed in the through hole; the upper part of the driving gear is inserted into the through hole, and the driving gear and the surface cover form bearing connection through the first annular groove, the second annular groove and steel balls arranged in the first annular groove and the second annular groove.
9. The jacking tool according to claim 1 or 7, wherein a second mounting hole is formed in the adapter, and a third annular groove is formed in the inner wall of the second mounting hole; be provided with fourth annular groove on the outer periphery of axle core, the axle core inserts in the second mounting hole, the axle core with the adapter passes through third annular groove fourth annular groove and device are in steel ball formation bearing in third annular groove and the fourth annular groove is connected.
10. The jacking tool according to claim 1, wherein external threads are arranged at two ends of the shaft core, and the thread directions of the external threads at the two ends are opposite; the two top cylinders are arranged at two ends of the shaft core respectively and are in threaded connection with the shaft core.
11. The tightening tool according to claim 9, wherein a manual rotation portion is disposed on the shaft core between the adapter and the external thread, and the manual rotation portion is a regular prism-shaped structure disposed on an outer side surface of the shaft core.
12. The jacking tool according to claim 1, wherein the jacking cylinder is of a multi-layer nested structure, and can axially slide among the cylinders of all layers so as to extend or contract the jacking cylinder; the inner wall of the innermost barrel is provided with an internal thread matched with the external thread, and the innermost barrel is connected with the shaft core through the thread; and the outer wall of the outermost barrel body is provided with a rotation stopping structure for limiting the rotation of the top barrel.
13. The jacking tool according to claim 1 or 11, wherein the rotation stopping structure is a plurality of protrusions arranged in a plane or at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122759637.7U CN216544326U (en) | 2021-11-11 | 2021-11-11 | Tight frock in top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122759637.7U CN216544326U (en) | 2021-11-11 | 2021-11-11 | Tight frock in top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216544326U true CN216544326U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122759637.7U Active CN216544326U (en) | 2021-11-11 | 2021-11-11 | Tight frock in top |
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| Country | Link |
|---|---|
| CN (1) | CN216544326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083743A (en) * | 2021-11-11 | 2022-02-25 | 格力电器(南京)有限公司 | Tight frock in top |
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2021
- 2021-11-11 CN CN202122759637.7U patent/CN216544326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083743A (en) * | 2021-11-11 | 2022-02-25 | 格力电器(南京)有限公司 | Tight frock in top |
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