CN115803534A - Arbitrarily-stopped resistance telescopic rod, equipment device thereof and use method - Google Patents
Arbitrarily-stopped resistance telescopic rod, equipment device thereof and use method Download PDFInfo
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- CN115803534A CN115803534A CN202180038460.1A CN202180038460A CN115803534A CN 115803534 A CN115803534 A CN 115803534A CN 202180038460 A CN202180038460 A CN 202180038460A CN 115803534 A CN115803534 A CN 115803534A
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- resistance
- pull rod
- spring
- telescopic rod
- shaft
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000013013 elastic material Substances 0.000 claims abstract 2
- 210000000078 claw Anatomy 0.000 claims description 25
- 241000282472 Canis lupus familiaris Species 0.000 claims description 16
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
A telescopic rod capable of stopping resistance at will comprises a pull rod (7), a shaft (1), a friction wheel (17), a shell (6) and a toothed slideway (5), wherein the outer edge of the friction wheel (17) and an interval close to the outer edge are made of elastic materials and can be elastically deformed under the pressure of the toothed slideway (5), the distance from the outer edge of the friction wheel (17) to the central line of the shaft (1) when the outer edge of the friction wheel is not subjected to external force is larger than the distance from the outer edge of the slideway to the central line of the shaft (1), the tooth form h of the toothed slideway (5) is larger than or equal to 0, and the tooth form L of the toothed slideway (5) is larger than or equal to 0. The adjustable pull rod has the advantages that the size of the forward and reverse movement resistance of the adjustable pull rod (5) is changed by changing the tooth form angle, the maintenance is easy, and the service life is long. In addition, the utility model also relates to a device with the resistance telescopic rod and a use method of the device.
Description
The invention relates to a telescopic rod capable of stopping resistance at will, equipment device thereof and a using method of the equipment device.
The telescopic rod with any stopping resistance in the prior art mainly comprises a supporting rod for a camera, a video camera, a computer, a reading stand, a lamp bracket and the like, and the method mainly adopts the frictional resistance of materials among sleeves or the method of balancing the gravity of a support with the elastic supporting force of a spring of the supporting rod sleeve. The former is easy to loosen as the abrasion is increased along with the increase of the use times, the latter adopts a gravity balance method and has poor stability, and the limiting device of the prior art adopts a telescopic rod on a reading stand, so that the thickness of the telescopic rod is increased, and the folding is not facilitated; the device such as reading rack adopting the telescopic rod comprises a bottom plate, a support plate, a clamp and a rotating shaft, wherein the bottom plate and the support plate are connected through the rotating shaft and the angle of the bottom plate and the support plate is adjusted through the rotating shaft, and the rotating shaft divides the bottom plate into L 1 And L 2 Two parts, there is room for further improvement and optimization in their basic construction.
In the prior art, the telescopic resistance of a resistance telescopic rod used for a small-sized civil product equipment device mainly utilizes the surface friction of materials and a gravity balance method, wherein the former is easy to wear and the latter has poor stability. The resistance of the telescopic rod adopts tooth form matching and/or rolling friction, and particularly the rolling friction can reduce the friction loss of materials, so that the telescopic rod has long service life.
The scheme is as follows: a resistance-free stopping telescopic rod comprises a pull rod, a shaft, shifting claws, a shell, a tooth-shaped slideway, springs and spring cavities, wherein the springs are closed and circular, the two spring cavities form an ellipse, when the pull rod relatively displaces along the tooth-shaped slideway under the action of external force, the two shifting claws are separated from the meshing constraint of the tooth-shaped slideway when the shifting claws reach the maximum displacement in the moving direction vertical to the pull rod, the springs are overlapped with the spring cavities, and at the moment, the elastic force borne by the two shifting claws reaches the maximum value.
The second scheme is as follows: the randomly-stopped resistance telescopic rod is characterized in that a shifting plate is sleeved on a shaft, the shifting plate is also provided with the shaft, a shifting claw is sleeved on the shaft, a spring cavity is arranged on the shifting claw, a spring is placed in the spring cavity, the end parts of two side shoulders of the shifting claw realize the adjustment of the resistance of the pull rod to move in the forward and backward directions by changing the length of the two side shoulders of the shifting claw, and the end parts of the pull rod and/or the shell are provided with a connecting handle for being connected with other connecting pieces.
The third scheme is as follows: the arbitrarily stopping resistance telescopic rod is characterized in that an elastic sheet-shaped body is arranged at the end part of the groove-shaped pull rod, a shifting claw is arranged on the elastic sheet-shaped body, in order to make up for the insufficient elastic force of the elastic sheet-shaped body, a spring shaft is arranged at the end part of the pull rod 7, and a spring is arranged on the spring shaft to form elastic expansion force on the shifting claw arranged on the elastic sheet-shaped body.
The fourth scheme is as follows: the friction wheel is used for replacing the outer edge of the pusher dog friction wheel and the section close to the outer edge of the pusher dog friction wheel is made of elastic flexible materials, the elastic flexible materials can generate elastic deformation under the pressure of the tooth-shaped slideway, the distance from the outer edge of the friction wheel to the central line of the shaft when the outer edge of the friction wheel is not subjected to external force is larger than the distance from the outer edge of the slideway to the central line of the shaft, h of the tooth-shaped slideway is larger than or equal to 0, L of the tooth-shaped slideway is larger than or equal to 0.
In the first to fourth schemes, the tooth form angle A and/or the tooth form angle B of the tooth form slideway are/is changed, the resistance of the pull rod in forward and reverse movement can be adjusted, when A = B, the resistance of the pull rod in forward and reverse movement is equal, when A < B, the resistance of the pull rod in the direction of A → B is small, and when A > B, the resistance of the pull rod in the direction of A → B is large.
The fifth scheme is as follows: the reading stand comprises a base plate, an extension plate, a clamp and a rotating shaft, wherein the base plate and the extension plate are connected through the rotating shaft and the angle of the base plate and the extension plate is adjusted through the rotating shaft, and in the prior art, the rotating shaft divides the base plate into L 1 And L 2 Two parts, when in use, the book is opened and divided into two parts, and the page reading part is clamped by the clampThe other part is pressed on the bottom plate, but the bottom plate of the technical proposal does not have L 1 That is to say L is omitted 1 When the book reading device is used, a book is opened and divided into two parts, the page reading part is clamped by the clamp, the other part is placed on the plane where the bottom plate is located, or the plate-shaped reading object is clamped by the clamp, the supporting plate adopts the freely stopping resistance telescopic rod in the schemes I to IV, or the bottom plate also adopts the freely stopping resistance telescopic rod in the schemes I to IV.
In order to increase the stability of the reading stand in the using process, the bottom plate is provided with the balance weight, the balance weight is connected with the bottom plate, and an object or a writing case or a sucker is adopted and is used for being adsorbed on a plane on which the reading stand is placed.
The use method of the reading frame in the fifth scheme comprises the following steps: when the book reading clamp is used, a book or a plate-shaped reading object is placed on the plane where the bottom plate is located, the book reading page part or the plate-shaped reading object is clamped by the clamp, and the bottom plate is overlapped with the placed plane or forms an angle with the placed plane.
The invention discloses a reading rack comprising a telescopic rod capable of stopping resistance at will, which has the beneficial effects that: the structure is simpler, the folding performance is better, and the folded overall size is smaller and more compact and is easy to carry; the invention discloses a telescopic rod capable of stopping resistance at will, which has the beneficial effects that: the resistance system has good stability, can adjust the positive and negative resistance force of the system according to actual requirements, has simple appearance, is favorable for manufacturing folding equipment products, and is more practical, easy to maintain and long in service life.
Fig. 1, 2, 3, 5, 6, 7, 8, 9, 10, 14, 15 and 16 are schematic views of the structure of the resistance telescopic rod. Fig. 4 is a schematic view of a toothed ramp. FIG. 3 isbase:Sub>A left side view of FIG. 1, and FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1; FIG. 7 isbase:Sub>A left side view of FIG. 5, and FIG. 6 isbase:Sub>A sectional view taken along line A-A of FIG. 1; FIG. 10 isbase:Sub>A left side view of FIG. 8, and FIG. 9 isbase:Sub>A sectional view taken along line A-A of FIG. 8; fig. 11 is a view of a reading stand configuration; FIG. 12 is a schematic view of a lamp holder construction; FIG. 13 is a prior art structural view of a reading stand; FIG. 16 isbase:Sub>A left side view of FIG. 14, and FIG. 15 isbase:Sub>A sectional view taken along line A-A of FIG. 14; fig. 17 is a schematic view of a stand structure of a desktop computer.
As shown in fig. 11: the reading stand comprises a bottom plate 12, a support plate 14, a clamp 15, a rotating shaft 13, the bottom plate 12 is also called L 2 The telescopic rod is connected with the support plate 14 through the rotating shaft 13, the angle of the telescopic rod is adjusted through the rotating shaft 13, when the telescopic rod is used, a book is opened and divided into two parts, a reading page part is clamped by the clamp 15, the other part is placed on the plane where the bottom plate 12 is located, or a plate-shaped reading object is clamped by the clamp 15, the support plate 14 adopts one of the first to the fourth schemes, or the bottom plate 12 also adopts one of the first to the fourth schemes, and the resistance telescopic rod can be stopped freely.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4: the spring type spring comprises a pull rod 7, a shaft 1, pusher dogs 2, a shell 6, a toothed slideway 5, a spring 3 and a spring cavity 4, wherein one end of the pusher dog 2 is provided with a shaft hole, one end of the pull rod 7 is provided with two vertical shafts 1, the pull rod 7 and the two pusher dogs 2 form a shaft connection, the shaft 1 and the shaft hole are combined in a movable fit manner, the inner side of the pusher dog 2 is provided with a spring cavity 4, the two pusher dogs 2 are symmetrically arranged to form an oval spring cavity, the spring 3 is in a closed circle shape, the diameter of the spring is not less than the oval short shaft of the oval spring cavity and is arranged in the spring cavity 4, when the pull rod 7 relatively displaces along the toothed slideway 5 under the action of external force, the two pusher dogs 2 are separated from the meshing constraint of the toothed slideway, the spring is superposed with the spring cavity, and at the moment, the elastic force borne by the two pusher dogs 2 reaches the maximum value. The end of the telescopic rod can be provided with a connecting handle which is used for hinging or connecting with other equipment.
According to actual requirements, the size of the forward and reverse resistance of the resistance system can be adjusted by changing the tooth form angle of the tooth form slideway 5.
As shown in fig. 5, 6, 7: the arbitrarily-stopped resistance telescopic rod is characterized in that a shifting plate 10 is sleeved on a shaft 1, the shaft 1 is also arranged on the shifting plate 10, a shifting claw 2 is sleeved on the shaft 1, the shifting claw 2 is provided with one claw or at least one claw, a spring cavity 4 is arranged on the shifting claw 2, a spring 3 is placed in the spring cavity 4, the spring 3 is in a double-fork shape, elastic contacts are arranged at the end parts of shoulders on two sides of the shifting claw 2, the resistance of the forward and reverse movement of a pull rod is adjusted by changing the length of the shoulders on two sides of the shifting claw 2, and a connecting handle is arranged at the end part of the pull rod and/or a shell and used for being connected with other connecting pieces.
As shown in fig. 8, 9, 10: the arbitrarily stopping resistance telescopic rod is characterized in that an elastic sheet-shaped body is arranged at the end part of a groove-shaped pull rod 7, a shifting claw 2 is arranged on the elastic sheet-shaped body, a spring shaft 1 is arranged at the end part of the pull rod 7 in order to make up for the insufficient elastic force of the elastic sheet-shaped body, and a spring 3 is arranged on the shaft 1 to form elastic expansion force on the shifting claw 2 arranged on the elastic sheet-shaped body through the elastic sheet-shaped body.
As shown in fig. 14, 15, 16: the telescopic rod with the random stopping resistance uses the friction wheel 17 to replace the pusher dog 2, the outer edge of the friction wheel 17 and the interval close to the outer edge are made of elastic flexible materials, the elastic flexible materials can generate elastic deformation under the pressure of the tooth-shaped slideway 5, the distance from the outer edge of the friction wheel 17 to the central line of the shaft 1 when not acted by external force is larger than the distance from the outer edge of the tooth-shaped slideway to the central line of the shaft 1, the distance from the central line of the two shafts 1 is not larger than the sum of the radiuses of two wheels when the outer edge of the friction wheel 17 is not acted by external force, in order to increase the telescopic moving resistance of the telescopic rod, a multi-wheel combination can be adopted, the telescopic moving resistance of the telescopic rod is in direct proportion to the compression deformation quantity of the friction wheel 17 and the number of the friction wheels 17 participating in deformation quantity, h of the tooth-shaped slideway 5 is not less than 0, and L is not less than 0. The resistance of the pull rod 7 to move forwards and backwards can be adjusted by changing the tooth form angle A and/or B of the tooth form slideway 5. When the height of equipment such as desktop computer display, reading rack, lamp holder, etc. is adjusted, it is always desirable that the resistance is larger when the equipment is dropped to avoid easy drop-down, and the pull rod of the civil luggage is desirable that the resistance for pulling the pull rod out and extending is designed to be larger than the resistance for withdrawing and restoring.
The counter weight 18 of the reading stand is connected with the bottom plate 12, the counter weight 18 adopts an object or a writing case or magnetic connection and a sucker, and when the sucker is adopted, the sucker is used for being adsorbed on a plane on which the reading stand is placed.
The use method of the reading frame comprises the following steps: the book or the plate-like reading material to be read is held by the clip 15, and the bottom plate 12 is overlapped with the plane to be placed or forms an angle with the plane to be placed.
As shown in fig. 12: the lamp holder comprises a lamp 11 connecting rod 14, a rotating shaft 13 and a base 16, wherein the connecting rod 14 adopts one of the telescopic rods capable of stopping resistance randomly according to the first to the fourth technical schemes of the invention; as shown in fig. 17: the desktop computer support display 18 is connected with the support 14 through the shaft 13, the support 14 is connected with the base 16, and the support 14 adopts any one of the telescopic rods capable of stopping resistance at will according to the first technical scheme to the fourth technical scheme. The height of the display is adjusted so that the stand 14 is designed to have a resistance to lowering greater than a resistance to lifting.
The telescopic rod and its equipment capable of stopping resistance at will are simple in structure, easy to produce and manufacture, and can be widely used for supporting rods of cameras, video cameras, computer monitors, reading racks, lamp holders and the like, and small-sized civil products such as luggage pull rods and the like.
A sequence listing free content description passage is entered here.
Claims (9)
- The utility model provides a stop resistance telescopic link wantonly which characterized in that: the spring type spring pushing device comprises a pull rod (7), a shaft (1), pusher dogs (2), a shell (6), a tooth-shaped slideway (5), a spring (3) and spring cavities (4), wherein the pusher dogs (2) are matched with the tooth-shaped slideway (5), the spring (3) is in a closed circular shape, the two spring cavities (4) form oval cavities, when the pull rod (7) relatively moves along the tooth-shaped slideway (5) under the action of external force, the two pusher dogs (2) are disengaged from meshing constraint of the tooth-shaped slideway (5) when the two pusher dogs (2) reach the maximum displacement in the moving direction perpendicular to the pull rod (7), the spring (3) is superposed with the spring cavities (4), and at the moment, the elastic force borne by the two pusher dogs (2) reaches the maximum value.
- The telescopic rod of claim 1, wherein: the pull rod type connecting device is characterized in that a shifting plate (10) is sleeved on a shaft (1), the shaft (1) is arranged on the shifting plate (10), a shifting claw (2) is sleeved on the shaft (1), a spring cavity (4) is arranged on the shifting claw (2), a spring (3) is placed in the spring cavity (4), the elastic contact is arranged at the end part of shoulders at two sides of the shifting claw (2), the length of the shoulders at two sides of the shifting claw (2) is changed, the resistance of the pull rod (7) in the forward and reverse directions is adjusted, and a connecting handle (8) is arranged at the end part of the pull rod (7) and/or the shell (6) and is used for being connected with other connecting pieces.
- The free stop resistance telescopic rod according to claim 1, wherein: the end part of the groove-shaped pull rod (7) is provided with an elastic sheet-shaped body, the elastic sheet-shaped body is provided with a shifting claw (2), in order to make up for the insufficient elastic force of the elastic sheet-shaped body, the end part of the pull rod (7) is provided with a spring shaft (1), and a spring (3) is placed on the shaft (1) to form elastic expansion force on the shifting claw (2) arranged on the elastic sheet-shaped body.
- The free stop resistance telescopic rod according to claim 1, wherein: the friction wheel (17) is used for replacing the outer edge of the friction wheel (17) of the pusher dog (2) and the interval close to the outer edge is made of elastic materials, the elastic deformation can occur under the pressure of the toothed slideway (5), the distance from the outer edge of the friction wheel (17) to the center line of the shaft (1) when the outer edge is not acted by an external force is larger than the distance from the outer edge of the toothed slideway to the center line of the shaft (1), the center line distance of the two shafts (1) is not larger than the sum of the radiuses of two wheels when the outer edge of the friction wheel (17) is not acted by the external force, in order to increase the telescopic moving resistance of the telescopic rod, a multi-wheel combination can be adopted, the telescopic moving resistance of the telescopic rod is in direct proportion to the compression deformation quantity of the friction wheel (17) and the number of the friction wheels (17) participating in the deformation quantity, the tooth form h of the toothed slideway (5) is not less than 0, and L is not less than 0.
- The telescopic rod of any one of claims 1 to 4, wherein: the resistance of the pull rod (7) to the forward and reverse movement can be adjusted by changing the tooth form angle A and/or the tooth form angle B of the slideway (5), when A = B, the resistance of the pull rod (7) to the forward and reverse movement is equal, when A < B, the resistance of the pull rod (7) to the movement in the A → B direction is small, and when A > B, the resistance of the pull rod (7) to the movement in the A → B direction is large.
- A reading stand comprising the telescopic rod of any one of claims 1 to 5, wherein the telescopic rod comprises a base plate (12), a support plate (14), a clamp (15) and a rotating shaft (13), the base plate (12) and the support plate (14) are connected through the rotating shaft (13) and are adjusted in angle through the rotating shaft (13), and the rotating shaft (13) divides the base plate (12) into L parts 1 And L 2 Two parts, open the book during use and divide into two parts, the page part of reading is cliied by clip (15), and another part is pressed on bottom plate (12), its characterized in that: the bottom plate (12) does not have L 1 In use, the book is opened and divided into two parts, the page part is clamped by the clamp (15), the other part is placed on the plane of the base plate (12), or the plate-shaped reading object is clamped by the clamp (15), the support plate (14) adopts a random stopping resistance telescopic rod as claimed in any one of claims 1 to 5, or the base plate (12) also adopts a random stopping resistance telescopic rod as claimed in any one of claims 1 to 5.
- A reading stand according to claim 6, wherein: the counterweight (18) is connected to the base plate (12).
- A reading stand according to claim 6, wherein: the counterweight (18) adopts an object or a writing case or a magnetic connection and a sucker, and when the sucker is adopted, the sucker is used for being adsorbed on a plane on which the reading stand is placed.
- A method of using the reading stand of claim 6, wherein: the book or the plate-shaped reading object to be read is placed on the plane on which the reading frame is placed, the reading surface is clamped by the clamp (15), and the bottom plate (12) is superposed with the plane or forms an angle with the plane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333207 | 2020-11-25 | ||
| CN2020113332072 | 2020-11-25 | ||
| PCT/CN2021/132589 WO2022111489A1 (en) | 2020-11-25 | 2021-11-23 | Arbitrary stop resistance telescopic rod, and equipment device and use method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115803534A true CN115803534A (en) | 2023-03-14 |
Family
ID=81755059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180038460.1A Pending CN115803534A (en) | 2020-11-25 | 2021-11-23 | Arbitrarily-stopped resistance telescopic rod, equipment device thereof and use method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115803534A (en) |
| WO (1) | WO2022111489A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10103316A (en) * | 1996-09-26 | 1998-04-21 | Nishikawakintarou:Kk | Locking device for pipe mechanism |
| US6685149B1 (en) * | 2003-04-15 | 2004-02-03 | Benq Corporation | Adjustable support stand |
| TWM274466U (en) * | 2005-01-05 | 2005-09-01 | Ratchet King Co Ltd | Extendable supporting rod |
| AU2008226343B2 (en) * | 2007-03-14 | 2013-08-01 | Gesswein, Andreas Klaus | Length adjustable member |
| CN110848217A (en) * | 2019-10-31 | 2020-02-28 | 杭州风行医疗器械有限公司 | Telescopic mechanism capable of being clamped in two directions |
-
2021
- 2021-11-23 CN CN202180038460.1A patent/CN115803534A/en active Pending
- 2021-11-23 WO PCT/CN2021/132589 patent/WO2022111489A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022111489A1 (en) | 2022-06-02 |
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