CN209915440U - Telescopic table wheel device - Google Patents
Telescopic table wheel device Download PDFInfo
- Publication number
- CN209915440U CN209915440U CN201920161358.0U CN201920161358U CN209915440U CN 209915440 U CN209915440 U CN 209915440U CN 201920161358 U CN201920161358 U CN 201920161358U CN 209915440 U CN209915440 U CN 209915440U
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- rod
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- supporting
- gear
- extension spring
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- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model provides a telescopic desk wheel device, includes truckle, perpendicular guide arm and telescopic machanism, the truckle is installed on the bottom of bottom plate, the lower extreme of erecting the guide arm is fixed on the bottom plate, telescopic machanism includes bracing piece, gear, two supporting shoes, two dowel steel, two spur racks, two cross guide arms, two compression spring and an extension spring, it includes horizontal pole and montant to go up the bracing piece, and the upper end and the horizontal pole of montant are connected, the middle part of horizontal pole is equipped with the through-hole, this through-hole is passed to the upper end of erecting the guide arm, erect the guide arm overcoat and be equipped with extension spring, extension spring's lower extreme and bottom plate fixed connection, extension spring's upper end and horizontal pole fixed connection, the gear is rotatable install on the lower extreme of montant and with. The utility model provides a telescopic table wheel device, which realizes the movement and fixation of a table through the folding and unfolding of table wheels.
Description
Technical Field
The utility model relates to a telescopic table wheel device.
Background
At present, most of tables on the market do not have casters, and the tables with the casters can not be retracted generally. In the former case, people have a lot of effort to move the table. The latter case is not conducive to the protection of the casters, which in case of problems with the casters would mean the rejection of the entire table.
Disclosure of Invention
In order to overcome the defect that the caster of the existing table cannot be contracted, the utility model provides a telescopic table wheel device, which realizes the movement and fixation of the table through the folding and unfolding of the table wheels.
The utility model provides a technical scheme that its technical problem adopted is:
a telescopic desk wheel device comprises a caster wheel, a vertical guide rod and a telescopic mechanism, wherein the caster wheel is installed on the bottom of a bottom plate, the lower end of the vertical guide rod is fixed on the bottom plate, the telescopic mechanism comprises an upper supporting rod, a gear, two supporting blocks, two force transmission rods, two straight racks, two transverse guide rods, two compression springs and an extension spring, the upper supporting rod comprises a transverse rod and a vertical rod, the upper end of the vertical rod is connected with the transverse rod, a through hole is formed in the middle of the transverse rod, the upper end of the vertical guide rod penetrates through the through hole, the extension spring is sleeved outside the vertical guide rod, the lower end of the extension spring is fixedly connected with the bottom plate, the upper end of the extension spring is fixedly connected with the transverse rod, and the gear is rotatably installed on the lower end of the;
the two transverse guide rods are arranged on the front side and the rear side of the vertical guide rod in a front-back mode, the supporting blocks are L-shaped, the two supporting blocks are arranged on the left end and the right end of the bottom plate in a back-to-back mode and are slidably mounted on the two transverse guide rods, a compression spring is sleeved on each transverse guide rod, the left end and the right end of each compression spring are respectively connected with the two supporting blocks, a force transmission rod is fixedly mounted on each supporting block, the two force transmission rods are arranged in a front-back staggered mode, a straight rack is fixedly mounted at the upper end of each force transmission rod, the two straight racks are respectively located on the front side and the rear side of;
the table leg is of a tubular structure, two positioning holes and two sliding grooves are formed in the table leg, the two positioning holes are communicated left and right, the two sliding grooves are arranged right and left, the positioning holes are located above the sliding grooves, the cross rod of the upper supporting rod is located in the table leg, two ends of the cross rod are located in the two positioning holes, and the end parts, far away from the gear, of the two straight racks respectively penetrate into the two sliding grooves; the table legs are also internally provided with a stop block, and the stop block is positioned below the sliding groove;
vertical straight teeth are arranged on the gear, vertical straight teeth meshed with the gear are also respectively arranged on the two straight teeth, and sliding can be formed in the vertical direction; when the caster wheel extends out of the table leg, the two supporting blocks are just clamped at the bottom of the table leg; when needs shrink truckle, two spur racks are pressed to the level, drive two supporting shoes and inwards shrink, and under extension spring effect simultaneously, the vertical guide arm upward movement of pulling drives two supporting shoes, dowel steel and two spur racks upward movement simultaneously, until two supporting shoes and dog contact, realize that the truckle contracts in the table leg.
Further, the montant of going up the bracing piece sets up two, two montant bilateral symmetry arrange in the left and right sides of vertical guide pole, the rotatable installation of gear is on the lower end of two montants.
Still further, the upper end of supporting shoe is equipped with the jack, the lower extreme of dowel steel is pegged graft in the jack.
The beneficial effects of the utility model are that: the desk truckles are retractable and have long service life.
Drawings
Fig. 1 is a sectional view of the working state of the caster.
Fig. 2 is a sectional view showing a contracted state of the caster.
Fig. 3 is a schematic view of the utility model matching with the table legs.
Fig. 4 is a schematic structural diagram of the present invention.
Fig. 5 is a schematic structural view of the upper support rod.
Fig. 6 is a schematic structural view of the caster.
Fig. 7 is a schematic view of the engagement of the spur rack with the transmission rod.
Fig. 8 is a structural schematic diagram of the support block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 8, a retractable table wheel device comprises casters 1, vertical guide rods 6 and a retractable mechanism, the caster wheel 1 is arranged on the bottom of the bottom plate 11, the lower end of the vertical guide rod 6 is fixed on the bottom plate 11, the telescopic mechanism comprises an upper supporting rod 5, a gear 8, two supporting blocks 2, two force transmission rods 3, two spur racks, two transverse guide rods 10, two compression springs and an extension spring 7, the upper supporting rod 5 comprises a cross rod and a vertical rod, the upper end of the vertical rod is connected with the cross rod, the middle part of the cross rod is provided with a through hole, the upper end of the vertical guide rod 6 passes through the through hole, an extension spring 7 is sleeved outside the vertical guide rod 6, the lower end of the extension spring 7 is fixedly connected with the bottom plate 11, the upper end of the extension spring 7 is fixedly connected with the cross rod, and the gear 8 is rotatably arranged on the lower end of the vertical rod and is coaxial with the vertical guide rod 6;
the two transverse guide rods 10 are arranged on the front side and the rear side of the vertical guide rod 6 in a front-back mode, the supporting blocks are L-shaped, the two supporting blocks are arranged on the left end and the right end of the bottom plate 11 in a back-to-back mode and are installed on the two transverse guide rods 10 in a sliding mode, each transverse guide rod is sleeved with a compression spring, the left end and the right end of each compression spring are connected with the two supporting blocks respectively, a force transmission rod is fixedly installed on each supporting block, the two force transmission rods 3 are arranged in a front-back staggered mode, a straight rack is fixedly installed at the upper end of each force transmission rod 3, the two straight racks are located on the front side and the rear side;
the desk leg is of a tubular structure, two positioning holes and two sliding grooves 13 are formed in the desk leg, the two positioning holes are communicated left and right, the two sliding grooves 13 are arranged right and left, the positioning holes are located above the sliding grooves 13, the cross rod of the upper supporting rod 5 is located in the desk leg, two ends of the cross rod are located in the two positioning holes, and the end parts, far away from the gear, of the two straight racks respectively penetrate into the two sliding grooves; a stop block 12 is also arranged in the table leg, and the stop block 12 is positioned below the sliding groove 13;
vertical straight teeth are arranged on the gear 8, vertical straight teeth meshed with the gear 8 are also respectively arranged on the two straight teeth, and sliding can be formed in the vertical direction; when the caster 1 extends out of the table leg, the two supporting blocks are just clamped at the bottom of the table leg; when the truckle 1 needs to be contracted, two spur racks are horizontally pressed to drive two supporting blocks to contract inwards, and simultaneously under the action of the extension spring 7, the vertical guide rod 6 is pulled to move upwards, and the two supporting blocks, the dowel bar 3 and the two spur racks are driven to move upwards simultaneously until the two supporting blocks are contacted with the check block 12, so that the truckle is contracted into the table leg.
Further, the vertical rods of the upper supporting rod 5 are arranged in two, the two vertical rods are arranged on the left side and the right side of the vertical guide rod 6 in a bilateral symmetry mode, and the gear 8 is rotatably installed at the lower ends of the two vertical rods.
Furthermore, the upper ends of the supporting blocks 2-1 and 2-2 are provided with jacks, and the lower end of the dowel bar 3 is inserted into the jacks.
The utility model discloses a receiving and releasing of truckle is realized to the screens effect of the tensile and compression of spring and dog. The whole mechanism is basically distributed symmetrically. Particularly, when the caster is in a working state at the gear, the rack at the other end can be driven by the gear to move uniformly by controlling the straight rack on one side, so that the two symmetrical supporting blocks can contract inwards at the same time, and the change from the working state to the folding and unfolding state is realized. The support blocks can be prevented from inclining when being folded and unfolded under the action of the two transverse guide rods matched with the support blocks. And the compression spring on the cross guide rod ensures that the supporting block is smoothly popped out to clamp the bottom of the table leg when moving downwards.
In this embodiment, the back of each supporting shoe is provided with two guide holes respectively, the left and right ends of each cross guide rod form the side-to-side sliding pair with the guide holes of two supporting shoes respectively, the upper end that is located left dowel bar with be located the left end fixed connection of left spur rack, the right-hand member rear side of left spur rack is equipped with the vertical straight-tooth with gear engagement, the upper end that is located the dowel bar on right side with be located the right-hand member fixed connection of right spur rack on right side, the left end front side of right spur rack is equipped with the vertical straight-tooth with gear engagement. The vertical guide rod and the through hole on the upper support rod form an up-and-down sliding pair, and the lower end of the upper support is provided with an outward bulge for facilitating the installation of the gear.
The utility model discloses a control to supporting shoe 2 realizes receiving and releasing of truckle 1. No matter which state the caster is in, the compression springs 9-1, 9-2 are always in a compressed state and the extension spring 7 is in an extended state. The lower end of the extension spring 7 is fixed on the bottom plate 11, and the upper end is fixed on the upper support rod 5. If the truckle is in operating condition, the truckle stretches out the table leg promptly, relies on the supporting role of supporting shoe to lift up the desk, and truckle department is transferring, can freely remove the desk this moment. When the desk is moved to a designated place and the caster is required to be retracted, one side of the desk is lifted, the straight racks 4-1 and 4-2 are horizontally pressed, so that the supporting blocks 2-1 and 2-2 move inwards, the caster, the supporting blocks, the straight racks and the like are upwards stretched under the action of the stretching springs 7 after the supporting blocks are retracted into the desk legs, and the devices move along the through holes in the upper supporting rods along with the vertical guide rods 6 until the supporting blocks 2-1 and 2-2 are clamped at the stop blocks 12. The other three table legs are sequentially lifted up in this way, so that the caster is retracted, namely the state of the figure 1 is changed into the state of the figure 2. If the desk legs are required to be changed from the retracted state to the extended state, the desk legs are sequentially lifted, the straight racks 4-1 and 4-2 are pressed downwards along the sliding groove 13 to drive the supporting block to move downwards, meanwhile, the two straight racks 4-1 and 4-2 are meshed with the gear 8, the supporting block is popped up under the action of the compression springs 9-1 and 9-2, and the L-shaped transverse parts clamp the desk legs.
Claims (3)
1. A telescopic table wheel device which is characterized in that: the caster wheel is mounted on the bottom of the bottom plate, the lower end of the vertical guide rod is fixed on the bottom plate, the telescopic mechanism comprises an upper supporting rod, a gear, two supporting blocks, two force transfer rods, two straight racks, two transverse guide rods, two compression springs and an extension spring, the upper supporting rod comprises a transverse rod and a vertical rod, the upper end of the vertical rod is connected with the transverse rod, a through hole is formed in the middle of the transverse rod, the upper end of the vertical guide rod penetrates through the through hole, the extension spring is sleeved outside the vertical guide rod, the lower end of the extension spring is fixedly connected with the bottom plate, the upper end of the extension spring is fixedly connected with the transverse rod, and the gear is rotatably mounted on the lower end of the vertical rod and is coaxially arranged with the vertical guide rod;
the two transverse guide rods are arranged on the front side and the rear side of the vertical guide rod in a front-back mode, the supporting blocks are L-shaped, the two supporting blocks are arranged on the left end and the right end of the bottom plate in a back-to-back mode and are slidably mounted on the two transverse guide rods, a compression spring is sleeved on each transverse guide rod, the left end and the right end of each compression spring are respectively connected with the two supporting blocks, a force transmission rod is fixedly mounted on each supporting block, the two force transmission rods are arranged in a front-back staggered mode, a straight rack is fixedly mounted at the upper end of each force transmission rod, the two straight racks are respectively located on the front side and the rear side of;
the table leg is of a tubular structure, two positioning holes and two sliding grooves are formed in the table leg, the two positioning holes are communicated left and right, the two sliding grooves are arranged right and left, the positioning holes are located above the sliding grooves, the cross rod of the upper supporting rod is located in the table leg, two ends of the cross rod are located in the two positioning holes, and the end parts, far away from the gear, of the two straight racks respectively penetrate into the two sliding grooves; the table legs are also internally provided with a stop block, and the stop block is positioned below the sliding groove;
vertical straight teeth are arranged on the gear, vertical straight teeth meshed with the gear are also respectively arranged on the two straight teeth, and sliding can be formed in the vertical direction; when the caster wheel extends out of the table leg, the two supporting blocks are just clamped at the bottom of the table leg; when needs shrink truckle, two spur racks are pressed to the level, drive two supporting shoes and inwards shrink, and under extension spring effect simultaneously, the vertical guide arm upward movement of pulling drives two supporting shoes, dowel steel and two spur racks upward movement simultaneously, until two supporting shoes and dog contact, realize that the truckle contracts in the table leg.
2. The retractable pinwheel apparatus as recited in claim 1, wherein: the vertical rods of the upper supporting rod are arranged in two, the two vertical rods are arranged on the left side and the right side of the vertical guide rod in a bilateral symmetry mode, and the gear is rotatably installed at the lower ends of the two vertical rods.
3. The retractable pinwheel apparatus as claimed in claim 1 or 2, wherein: the upper end of the supporting block is provided with a jack, and the lower end of the dowel bar is inserted in the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161358.0U CN209915440U (en) | 2019-01-30 | 2019-01-30 | Telescopic table wheel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161358.0U CN209915440U (en) | 2019-01-30 | 2019-01-30 | Telescopic table wheel device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209915440U true CN209915440U (en) | 2020-01-10 |
Family
ID=69068292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920161358.0U Expired - Fee Related CN209915440U (en) | 2019-01-30 | 2019-01-30 | Telescopic table wheel device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209915440U (en) |
-
2019
- 2019-01-30 CN CN201920161358.0U patent/CN209915440U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |