CN211447734U - Adjustable base convenient to replace - Google Patents

Abstract

The utility model discloses an adjustable base of convenient change aims at solving the long-time back of using of adjustable base, need take off whole seat from subaerial during the change, very inconvenient problem. The key points of the technical scheme are as follows: the utility model provides an adjustable base that conveniently changes, includes base, threaded rod and top support, is provided with the slot on the base, and the bottom of threaded rod is provided with the inserted bar, is provided with the cavity in the inserted bar, is provided with the drive pole in the cavity, is provided with the spring between two drive poles, and the one end of two drive poles all is provided with presses the briquetting, is provided with through-hole one on the inserted bar, and two other ends according to the briquetting all are provided with the fixture block, are provided with through-hole two on the inserted bar, are provided with the draw-. The utility model discloses an adjustable base of convenient change can separate threaded rod and base when wearing and tearing appear after the threaded rod uses for a long time, changes the threaded rod, makes the change of threaded rod more convenient, has practiced thrift the resource.

Description

Adjustable base convenient to replace

Technical Field

The utility model relates to a construction machinery field, more specifically say, it relates to an adjustable base of convenient change.

Background

Along with the development of large, medium and small cities in China, large, small and small building projects are visible everywhere, but the construction of each project, including rural houses, cannot leave the scaffold, however, the collapse accident caused by unstable scaffolds in the engineering construction is one-by-one, and casualties and property loss are caused.

The scaffold frame is the building tool that must use in the modern engineering construction work process, but when using the scaffold frame, the height on ground often all is equal and different, in order to make the scaffold frame can be on same level, prior art stacks up wood chip or other article below the scaffold frame usually, is used for adjusting level, but the wood chip that stacks up can deform the breakage after the atress, makes the scaffold frame become unstable easily, the accident of collapsing takes place for the serious time, bring very big potential safety hazard for constructor.

To solve the above problems, the chinese patent with publication number CN204357095U discloses a novel height-adjustable scaffold, which is characterized in that: the novel height-adjustable scaffold device comprises a scaffold tube, a bearing, a base, a screw rod, a sleeve wrench, a spiral gear and a baffle plate; the lead screw setting in shelf pipe, the sleeve spanner setting is in the lower part of shelf pipe, helical gear is connected with the sleeve spanner, the lower extreme setting of lead screw is in the bearing, the upper end of lead screw is provided with the baffle, the bearing setting is at the middle part of base.

According to the scheme, the lead screw is arranged in the bottom of the rack pipe, the lead screw is connected with the bottom of the rack pipe in a threaded engagement mode, the spiral gear is rotated through the rotating sleeve wrench, the spiral gear rotates to control the lead screw and the rack pipe to move up and down relatively, so that the height of the scaffold is adjusted, a plurality of scaffolds are arranged at the same horizontal height, the shelf is built more firmly, safety accidents are avoided, and construction is facilitated; the setting of baffle prevents that the frame pipe from removing out the lead screw, takes place the incident, compares with traditional approach, the utility model discloses simple structure, safe and reliable does benefit to the popularization. But for the screw thread interlock between lead screw and the threaded rod, after long-time the use, the screw thread on lead screw and the shelf pipe can receive wearing and tearing, leads to being connected between lead screw and the shelf pipe to appear becoming flexible, just can only take off whole adjustable base from fixed subaerial this moment, and whole change is very inconvenient, has also caused certain wasting of resources simultaneously.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a convenient adjustable base of changing realizes dismantling between threaded rod and the base through setting up the drive rod, pressing block and fixture block and is connected, reaches the convenient purpose of changing threaded rod.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an adjustable base of convenient change, including base, threaded rod and with threaded rod threaded connection's top support, be provided with the slot on the base, the bottom of threaded rod is provided with the inserted bar that inserts the slot, be provided with the cavity in the inserted bar, be provided with two symmetric distribution's drive pole, two in the cavity be provided with the spring between the drive pole, two the one end that the drive pole is close to the threaded rod all is provided with according to the briquetting, be provided with on the inserted bar and supply to press the through-hole one that the briquetting stretches out, two the other end of drive pole all is provided with the fixture block, be provided with the through-hole two that supplies the fixture block to stretch out on the inserted bar, be provided with the.

By adopting the technical scheme, the inserted rod is in clearance fit with the inner wall of the slot, when the inserted rod on the threaded rod is inserted into the slot, the clamping block can be clamped in the slot, when the threaded rod is damaged and needs to be replaced, the pressing block extending out of the first through hole is pressed, the two pressing blocks can approach each other, the two driving rods can be driven to approach each other, the spring between the two driving rods can be compressed, the two clamping blocks can retract into the cavity along with the driving rods, the inserted rod can be drawn out from the slot after the clamping blocks are drawn out from the slot, the threaded rod is separated from the base and can be replaced, after a new threaded rod is replaced, the threaded rod and the base are reconnected together, the pressing block is pressed to drive the clamping blocks to retract into the cavity, the inserted rod can be inserted into the slot, when the inserted rod is inserted into the bottom end of the slot, the position of the second through hole can just correspond to the slot, loosen at this moment and press the briquetting, the drive pole just can rebound the normal position through the elasticity of spring, and the drive pole will drive the fixture block and also reply the normal position, and the fixture block will stretch out from through-hole two, and the card is gone into the draw-in groove, and the inserted bar just can't outwards be extracted again, and the threaded rod has just linked together with the base again, just can accomplish the dismantlement of threaded rod through pressing down, and is easy and simple to handle, need not take out the base again when changing simultaneously, has made things convenient for the change, has practiced thrift certain resource.

The utility model discloses further set up to: the limiting sleeve is sleeved outside the spring and comprises a first limiting sleeve and a second limiting sleeve, one end of the first limiting sleeve is fixedly connected with the driving rod, the other end of the first limiting sleeve is inserted into the second limiting sleeve, and the other end of the second limiting sleeve is fixedly connected with the driving rod.

Through adopting above-mentioned technical scheme, at the in-process that the spring stretches out and draws back along the removal of drive pole, the one end that first stop collar inserted in the second stop collar can continue to insert toward the inside of second stop collar, and first stop collar will remove along the inner wall of second stop collar, avoids the spring can produce great the buckling at flexible in-process, makes the spring more stable at flexible in-process structure.

The utility model discloses further set up to: the inner wall of the second limiting sleeve is provided with a sliding groove, one end of the first limiting sleeve, which is inserted into the second limiting sleeve, is provided with a sliding block, which is used for being inserted into the sliding groove, and the sliding block slides in the sliding groove.

Through adopting above-mentioned technical scheme, at the in-process that first stop collar and second stop collar removed, the slider can move in the spout along with first stop collar, makes first stop collar and second stop collar more stable in-process structure that removes.

The utility model discloses further set up to: the inner wall of the sliding groove is provided with a plurality of universal balls distributed in an array mode, and the universal balls are attached to the surface of the sliding block.

Through adopting above-mentioned technical scheme, at the in-process that the inner wall of slider along the spout removed, universal ball can roll along the surface of slider, has reduced the friction between slider and the spout, makes the removal of slider more smooth and easy.

The utility model discloses further set up to: and the inserted bar is provided with a sealing sheet, and when the inserted bar is inserted into the slot, the sealing sheet is attached to the surface of the base.

Through adopting above-mentioned technical scheme, when the inserted bar inserted to the slot bottom, the gasket can just laminate with the surface of base, and the gasket just can shelter from the space between inserted bar and the slot, prevents that the foreign matter from falling into in the slot.

The utility model discloses further set up to: the pressing block comprises a first pressing section and a second pressing section, the first pressing section is fixedly connected with the driving rod, the second pressing section is hinged to the first pressing section, a containing groove used for containing the second pressing section is formed in the outer wall of the inserting groove, and the inner wall of the containing groove and one end, close to the second pressing section, of the first pressing section are located on the same plane.

Through adopting above-mentioned technical scheme, when need not press according to the briquetting, can press the section with the second and upwards turn over a book card and go into the holding tank, just so can make the inserted bar in-process surface that uses keep leveling, avoid pressing according to the briquetting can scrape other article, need press according to when pressing the briquetting, press the section with the second again and pull out from holding tank, turn over and get off, form complete according to the briquetting with the first section of pressing, just can press, when the section is pressed to the second and upwards turns over a book 90 degrees, the second is pressed the section and can just be laminated with the inner wall of holding tank.

The utility model discloses further set up to: and a rubber sleeve is arranged on the second pressing section.

Through adopting above-mentioned technical scheme, the rubber sleeve can increase the palm and press the friction between the briquetting, prevents to skid when pressing according to the briquetting, simultaneously, presses the second to turn over the section and turns over when entering the holding tank, and the rubber sleeve has also increased the second and has pressed the friction between section and the holding tank, makes the second press the section can not be easily fall out from holding tank by oneself.

The utility model discloses further set up to: the connecting rod is arranged on the inserted link, an external thread is arranged on the connecting rod, a fixing groove for inserting the connecting rod is arranged on the threaded rod, and an internal thread matched and connected with the connecting rod is arranged in the fixing groove.

Through adopting above-mentioned technical scheme, when damage appears in inserted bar or threaded rod, can follow the fixed slot with the connecting rod and roll out, the inserted bar just can separate with the threaded rod, again to one of them part change can, change the back again and change over into the fixed slot with the connecting rod on the inserted bar, the inserted bar just can be in the same place with the threaded rod reconnection, need not change threaded rod and inserted bar together, has saved certain resource.

To sum up, the utility model discloses following beneficial effect has:

firstly, when the threaded rod is damaged and needs to be replaced, the two driving rods can be driven to approach each other by pressing the pressing block extending out of the first through hole, the two clamping blocks can retract into the cavity along with the driving rods, the inserting rod can be drawn out of the slot after the clamping blocks are drawn out of the slot, the threaded rod is separated from the base, the threaded rod can be replaced, after a new threaded rod is replaced, the pressing block is pressed to drive the clamping blocks to retract into the cavity, the inserting rod is inserted into the slot, after the inserting rod is inserted into the bottom end of the slot, the position of the second through hole can just correspond to the slot, at the moment, the pressing block is loosened, the driving rods can rebound to the original position through the elasticity of the spring, the driving rods can drive the clamping blocks to return to the original positions, the clamping blocks can extend out of the second through hole, the threaded rod is connected with the base again after being clamped into the slot, and the, the operation is simple and convenient, and meanwhile, the base does not need to be taken out from the ground when being replaced, so that the replacement is convenient, and certain resources are saved.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention, showing the connection between the threaded rod and the base;

FIG. 2 is an enlarged view of section A of FIG. 1 showing internal structural features of the bayonet and socket;

FIG. 3 is an enlarged view of section B of FIG. 2, showing structural features of the stop collar;

fig. 4 is a schematic external structural view of the present invention, showing the external structural features of the threaded rod and the base when they are connected together.

In the figure: 1. a base; 2. a threaded rod; 3. jacking; 4. a slot; 5. inserting a rod; 6. a cavity; 7. driving the rod; 8. a spring; 9. a pressing block; 10. a clamping block; 11. a card slot; 12. a first stop collar; 13. a second stop collar; 14. a chute; 15. a slider; 16. a ball transfer unit; 17. sealing the sheet; 18. a first pressing section; 19. a second pressing section; 20. accommodating grooves; 21. a connecting rod; 22. and fixing the grooves.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "set/connected", "connected", and the like are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in detail with reference to the accompanying drawings and examples.

An adjustable base convenient for replacement is disclosed, as shown in fig. 1-4, comprising a base 1, a threaded rod 2 and a top support 3 in threaded connection with the threaded rod 2, wherein the base 1 is provided with a slot 4, the bottom of the threaded rod 2 is provided with an inserted rod 5 inserted into the slot 4, the inserted rod 5 is integrally formed with the threaded rod 2, the threaded rod 2 and the inserted rod 5 are both made of hard iron alloy, the chemical components of the alloy are, by weight, 2.5-3 parts of carbon, 0.5-1.3 parts of manganese, 0.3-1.3 parts of silicon, 25.0-30.0 parts of chromium, 2.0-2.5 parts of molybdenum, 0.4-1.0 parts of vanadium, 3.0-4.0 parts of boron, less than 0.05 parts of sulfur and phosphorus, and the rest parts of iron, and has the advantages of wear resistance and corrosion resistance, the inserted rod 5 is in clearance fit with the inner wall of the slot 4, the inserted rod 5 is provided with a sealing sheet 17 integrally formed therewith, when the inserted rod 5 is inserted into the bottom end of the slot 4, the sealing sheet 17, the connecting rod 21 is provided with an external thread which is integrally formed with the connecting rod 21, the threaded rod 2 is provided with a fixing groove 22 for the connecting rod 21 to be inserted into, an internal thread which is matched and connected with the connecting rod 21 is arranged in the fixing groove 22, the internal thread and the fixing groove 22 are integrally formed, the inserting rod 5 is internally provided with a cavity 6, the cavity 6 is internally provided with two driving rods 7 which are symmetrically distributed, a spring 8 is arranged between the two driving rods 7, the spring 8 is arranged at one end of the driving rod 7 close to the pressing block 9, two ends of the spring 8 are respectively welded and fixed with the driving rods 7 at two sides, one end of the two driving rods 7 close to the threaded rod 2 is provided with the pressing block 9, the pressing block 9 is welded and fixed with the driving rods 7, the inserting rod 5 is provided with a first through hole for the pressing block 9 to extend out, the pressing block 9 comprises a first pressing section 18 and a second pressing section 19, offer the holding tank 20 that is used for holding the second and presses section 19 on the outer wall of slot 4, holding tank 20 communicates with each other with the through-hole one, the inner wall of holding tank 20 is located the coplanar with the one end that the section 18 is pressed to the first section of pressing is close to the second and presses section 19, when the section 19 is pressed to the second and turns over 90 degrees upwards, the second is pressed section 19 and can just be laminated with the inner wall of holding tank 20, the second is pressed the section 19 and is gone up the cover and is equipped with the rubber sleeve rather than bonding fixedly through the binding material, the other end of two drive rods 7 all is equipped with fixture block 10, fixture block 10 and pressing block 9 welded fastening, the length of pressing block 9 is greater than the length of fixture block 10, offer the through-hole two that supplies fixture block 10 to stretch out on the inserted bar 5.

Meanwhile, a limiting sleeve is sleeved outside the spring 8 and comprises a first limiting sleeve 12 and a second limiting sleeve 13, one end of the first limiting sleeve 12 is welded with the driving rod 7, the other end of the first limiting sleeve 12 is inserted into the second limiting sleeve 13, the other end of the second limiting sleeve 13 is welded and fixed with the driving rod 7, the distance from the first limiting sleeve 12 to the second limiting sleeve 13 is larger than the length of the clamping block 10, a sliding groove 14 is formed in the inner side wall of the second limiting sleeve 13, a sliding block 15 used for inserting the sliding groove 14 is arranged at one end of the first limiting sleeve 12, the sliding block 15 is welded and fixed with the first limiting sleeve 12, the sliding block 15 slides in the sliding groove 14, a plurality of universal balls 16 distributed in an array are arranged on the inner wall of the sliding groove 14, and the universal balls 16 are attached to the surface of the sliding block 15.

When the inserted rod 5 on the threaded rod 2 is inserted into the slot 4, the fixture block 10 can be clamped in the clamping slot 11, when the threaded rod 2 is damaged and needs to be replaced, the pressing block 9 extending out of the first through hole is pressed, the two pressing blocks 9 can approach each other, the two driving rods 7 can be driven to approach each other, the spring 8 between the two driving rods 7 can be compressed, the two fixture blocks 10 can retract into the cavity 6 along with the driving rods 7, the inserted rod 5 can be drawn out of the slot 4 after the fixture block 10 is drawn out of the clamping slot 11, the threaded rod 2 is separated from the base 1, the threaded rod 2 can be replaced, after a new threaded rod 2 is replaced, the pressing block 9 is pressed to drive the fixture block 10 to retract into the cavity 6, the inserted rod 5 can be inserted into the slot 4, after the inserted rod 5 is inserted into the bottom end of the slot 4, the position of through-hole two can just correspond with draw-in groove 11, loosen this moment and press briquetting 9, drive pole 7 and just can pass through spring 8's elasticity rebound normal position, drive pole 7 will drive fixture block 10 and also answer the normal position, fixture block 10 will stretch out from through-hole two, the card is gone into in draw-in groove 11, inserted bar 5 just can't outwards have been extracted again, threaded rod 2 has just linked together with base 1 again, just can accomplish the dismantlement of threaded rod 2 through pressing, and is easy and simple to handle, need not take out base 1 from subaerial again when changing simultaneously, and the change is facilitated, and certain resources are saved.

In the process that the spring 8 extends and retracts along with the movement of the driving rod 7, one end, inserted into the second limiting sleeve 13, of the first limiting sleeve 12 can be continuously inserted into the second limiting sleeve 13, the first limiting sleeve 12 can move along the inner wall of the second limiting sleeve 13, the spring 8 is prevented from being greatly bent in the extending and retracting process, the structure of the spring 8 is enabled to be more stable in the extending and retracting process, in the process that the first limiting sleeve 12 and the second limiting sleeve 13 move, the sliding block 15 can move in the sliding groove 14 along with the first limiting sleeve 12, the structure of the first limiting sleeve 12 and the second limiting sleeve 13 is enabled to be more stable in the moving process, in the process that the sliding block 15 moves along the inner wall of the sliding groove 14, the universal ball 16 can roll along the surface of the sliding block 15, the friction between the sliding block 15 and the sliding groove 14 is reduced, the movement of the sliding block 15 is enabled to be smoother, and the slot between the inserting rods 5 and 4 can be shielded by the 17, the foreign matters are prevented from falling into the slot 4, when the pressing block 9 is not required to be pressed, the second pressing section 19 can be turned upwards and clamped into the accommodating groove 20, so that the surface of the inserted link 5 can be kept flat in the using process, other articles can be prevented from being scraped by the pressing block 9, when the pressing block 9 is required to be pressed, the second pressing section 19 is pulled out from the accommodating groove 20 and turned down to form a complete pressing block 9 with the first pressing section 18, the pressing can be carried out, the rubber sleeve can increase the friction between a palm and the pressing block 9 and prevent the pressing block 9 from skidding when being pressed, meanwhile, when the second pressing section 19 is turned into the accommodating groove 20, the rubber sleeve also increases the friction between the second pressing section 19 and the accommodating groove 20, so that the second pressing section 19 cannot easily fall out from the accommodating groove 20 by itself, and when the inserted link 5 or the threaded rod 2 is damaged, can follow fixed slot 22 with connecting rod 21 and roll out, inserted bar 5 just can separate with threaded rod 2, again to one of them partly change can, change the back again and roll over into fixed slot 22 with connecting rod 21 on inserted bar 5, inserted bar 5 just can be in the same place with threaded rod 2 reconnection, need not change threaded rod 2 and inserted bar 5 together, has saved certain resource.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides an adjustable base of convenient change, including base (1), threaded rod (2) and with threaded rod (2) threaded connection's top holds in the palm (3), its characterized in that: be provided with slot (4) on base (1), the bottom of threaded rod (2) is provided with inserted bar (5) that inserts slot (4), be provided with cavity (6) in inserted bar (5), be provided with drive rod (7) of two symmetric distributions in cavity (6), two be provided with spring (8) between drive rod (7), two the one end that drive rod (7) are close to threaded rod (2) all is provided with according to briquetting (9), be provided with on inserted bar (5) and supply to press the through-hole one that briquetting (9) stretched out, two the other end of drive rod (7) all is provided with fixture block (10), be provided with on inserted bar (5) and supply through-hole two that fixture block (10) stretched out, be provided with in slot (4) and cooperate draw-in groove (11) of being connected with fixture block (10).

2. The adjustable base convenient to replace of claim 1, wherein: the outside of spring (8) has cup jointed the stop collar, the stop collar includes first stop collar (12) and second stop collar (13), the one end and the drive pole (7) fixed connection of first stop collar (12), the other end of first stop collar (12) inserts in second stop collar (13), the other end and the drive pole (7) fixed connection of second stop collar (13).

3. The adjustable base convenient to replace of claim 2, wherein: a sliding groove (14) is formed in the inner wall of the second limiting sleeve (13), a sliding block (15) used for being inserted into the sliding groove (14) is arranged at one end, inserted into the second limiting sleeve (13), of the first limiting sleeve (12), and the sliding block (15) slides in the sliding groove (14).

4. The adjustable base convenient to replace of claim 3, wherein: the inner wall of the sliding groove (14) is provided with a plurality of universal balls (16) distributed in an array mode, and the universal balls (16) are attached to the surface of the sliding block (15).

5. The adjustable base convenient to replace of claim 1, wherein: be provided with gasket (17) on inserted bar (5), work as when inserted bar (5) insert slot (4), gasket (17) and base (1) surface laminating.

6. The adjustable base convenient to replace of claim 1, wherein: the pressing block (9) comprises a first pressing section (18) and a second pressing section (19), the first pressing section (18) is fixedly connected with the driving rod (7), the second pressing section (19) is hinged to the first pressing section (18), an accommodating groove (20) used for accommodating the second pressing section (19) is formed in the outer wall of the slot (4), and the inner wall of the accommodating groove (20) and the first pressing section (18) are located on the same plane and close to one end of the second pressing section (19).

7. The adjustable base convenient to replace of claim 6, wherein: and a rubber sleeve is arranged on the second pressing section (19).

8. The adjustable base convenient to replace of claim 1, wherein: be provided with connecting rod (21) on inserted bar (5), be provided with the external screw thread on connecting rod (21), be provided with on threaded rod (2) and supply connecting rod (21) male fixed slot (22), be provided with the internal thread of being connected with connecting rod (21) cooperation in fixed slot (22).

Images