Telescopic rod and spliced curtain rod

Abstract

The telescopic rod comprises an inner pipe, an outer pipe and a plug column, the plug column comprises a column body and a locking ring, one end of the column body is connected with one end of the inner pipe, a clamping groove is formed in the position, close to the inner pipe, of the column face of the other end of the column body, and the locking ring is clamped into the clamping groove through a non-closed opening. The end face of the non-closed opening end of the locking ring abuts against one end face of the clamping groove, and the inner pipe and the plunger are arranged in the outer pipe in a sleeved mode. When external force is applied to enable the inner pipe to rotate in one direction, the locking ring is extruded and deformed in the outer pipe, the extruded and deformed locking ring is in friction with the wall of the outer pipe, and the inner pipe and the outer pipe are axially positioned. When external force is applied to enable the inner pipe to rotate towards the other direction, the deformed locking ring recovers, and axial positioning between the inner pipe and the outer pipe is relieved; the length of the telescopic rod in a certain range can be randomly adjusted; the problem that in the prior art, a standard tube and a non-standard tube need to be arranged is solved, the production cost of a manufacturer is reduced, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to telescopic rod technical field, especially a telescopic rod and spliced curtain rod. BACKGROUND

[0002] Telescopic rod has very wide application, it has the advantages of convenient carrying and placing, common application scene has telescopic umbrella middle stick, telescopic rod of selfie stick and spliced curtain rod, since the rise of e-commerce, the application scene of telescopic rod is more, it can make the originally long rod in use, divide into multiple short rods, pack, transport, after receiving, the user assembles and uses again, the assembly between multiple short rods generally has clamping, knotting and thread connection etc.

[0003] However, the length of the telescopic rod after telescoping is fixed, for example, the length of a standard rod is 500MM (millimeter), the length of two rods after assembly may be 1000MM, or 950MM after subtracting the length of the connection overlap, but no matter how, the length between two rods is relatively fixed and cannot be adjusted at will, if the customer wants a rod with a total length of 600MM or 620MM or 730MM or other arbitrary length, the manufacturer needs to provide the customer with a standard rod with a length of 500MM, and also needs to provide a non-standard rod with a suitable length, which increases the production cost of the manufacturer, if the customer thinks that the length of the rod he needs is 760MM, the manufacturer provides the customer with a standard rod with a length of 500MM and a non-standard rod with a suitable length, however, the customer finds that he actually needs a rod with a total length of 770MM when using, at this time, the customer receives the rod with a total length of 760MM provided by the manufacturer, which is very troublesome, he needs to return or reorder the goods, and discard the received rod, which is a waste of resources.

[0004] For example, the user will roughly measure the length of the curtain rod needed with a tape measure before ordering, and then order a curtain rod with a suitable length, but there will be errors in measuring with a tape measure, if the ordered curtain rod is too long, it may not be installed due to the structure of the house, if the ordered curtain rod is too short, it may not completely cover the window after installing the curtain, which is not beautiful.

[0005] Therefore, the applicant has developed a telescopic rod, which can be adjusted in length within a certain range, in addition, the applicant has applied the telescopic rod to a curtain rod to solve the problems in the prior art. CONTENT OF THE UTILITY MODEL

[0006] In order to achieve the above purpose and improve the problem of time-consuming and laborious manual transportation of rails in the prior art, a telescopic rod and a spliced curtain rod are provided, the utility model takes the following technical solutions:

[0007] On the one hand, the utility model provides a telescopic rod, comprising an inner tube, an outer tube and a plug, the plug comprising a column body and a non-closed locking ring made of soft material, one end of the column body is connected to one end of the inner tube, and a clamping groove is provided on the cylindrical surface of the other end of the column body near the inner tube, the locking ring is clamped into the clamping groove through the non-closed opening, the end face of the non-closed opening of the locking ring abuts against one end face of the clamping groove, and the inner tube and the plug are sleeved in the outer tube; when an external force is applied to rotate the inner tube in one direction, the locking ring is squeezed and deformed in the outer tube, and the squeezed and deformed locking ring rubs against the wall of the outer tube, so that the inner tube and the outer tube are axially positioned; when an external force is applied to rotate the inner tube in the other direction, the deformed locking ring is restored, and the axial positioning between the inner tube and the outer tube is released.

[0008] For the improvement of the present invention, the shape of the groove is: in the axial direction of the cylinder, a first abutment surface is sheared and stretched inward, the first abutment surface is sheared and stretched along the radial direction of the cylinder, and the depth of shearing and stretching gradually decreases to form an arc-shaped bottom surface of the groove; the shape of the non-closed locking ring made of soft material is: the shape of the inner ring of the transverse section of the locking ring is similar to the shape of the outer ring of the transverse section of the groove, and the size of the inner ring of the locking ring is larger than the size of the outer ring of the groove, and the diameter of the outer ring of the locking ring is larger than the outer diameter of the inner tube and smaller than the inner diameter of the outer tube; the non-closed nature of the locking ring is to open a notch in the axial direction of the locking ring so that the locking ring has a first radial end face and a second radial end face; the height of the first radial end face is larger than the height of the second radial end face, and the height of the first radial end face is larger than the depth of the first abutment surface.

[0009] In an improvement of the present invention, the arc length of the arc-shaped bottom surface is greater than the radius of the arc.

[0010] For the improvement of the present invention, the groove on the cylinder is two groove bodies interconnected end to end, and the shape of the groove body is: in the axial direction of the cylinder, a first abutment surface a is sheared and stretched inward, and the first abutment surface a is sheared and stretched 180 degrees along the radial direction of the cylinder, and the depth of shearing and stretching gradually decreases to form an arc-shaped bottom surface a of the groove body; the shape of the non-closed locking ring made of soft material is: the inner ring shape of the transverse section of the locking ring is similar to the outer ring shape of the transverse section of the groove, and the inner ring size of the locking ring is larger than the size of the outer ring of the groove, and the diameter of the outer ring of the locking ring is larger than the outer diameter of the inner tube and smaller than the inner diameter of the outer tube; the non-closed nature of the locking ring is to open a notch a in the axial direction of the locking ring, so that the locking ring has a first radial end face a and a second radial end face a; the height of the first radial end face a is greater than the height of the second radial end face a, and the height of the first radial end face a is greater than the depth of the first abutment surface a.

[0011] The utility model discloses an improvement still includes annular soft plug, the annular soft plug is set in one end of outer tube, the inner tube is set in the outer tube after passing the annular soft plug, the outer diameter of annular soft plug is equal with the inner diameter of outer tube.

[0012] For the improvement of the utility model, one end outside of annular soft plug is equipped with the guide portion.

[0013] On the other hand, the utility model also provides a spliced window curtain rod, including two end plugs and multiple same structure, detachable, head-tail connection pipe body, one end plug is connected with the free end of one pipe body, still includes the telescopic rod of above-mentioned embodiment, the free end of one pipe body of the other end is connected with the outer tube of telescopic rod and is close to one end of plug post, and the other end plug and inner tube are connected with one end away from plug post.

[0014] For the improvement of the utility model, one end of pipe body is equipped with internal thread, and the other end is equipped with external thread after pipe shrinking.

[0015] Compared with the prior art, the utility model has the beneficial effects of:

[0016] The utility model provides a telescopic rod and spliced window curtain rod, wherein, telescopic rod includes inner tube, outer tube and plug post, plug post includes post body and the non - closed locking ring of adopting soft material, one end of post body is connected with one end of inner tube, and the column surface on the other end of post body is equipped with the clamping groove close to inner tube, and locking ring is clamped into clamping groove through non - closed opening, and the end face of non - closed opening end of locking ring is butt joint with one end face of clamping groove, and inner tube and plug post are set in outer tube.

[0017] In addition, after the telescopic rod is applied to the window curtain rod, the problem of inaccurate user measurement of the required length of the window curtain rod is solved. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the exploded structure schematic drawing of one direction of telescopic rod in the utility model.

[0019] Figure 2 It is the exploded structure schematic drawing of another direction of telescopic rod in the utility model.

[0020] Figure 3 is Figure 2 The structure schematic diagram of the magnification at A in the middle.

[0021] Figure 4 The sectional structure schematic diagram of the first direction of the telescopic rod in the utility model.

[0022] Figure 5 The sectional exploded structure schematic diagram of the first shape of the plug column in the utility model.

[0023] Figure 6 The sectional exploded structure schematic diagram of the second shape of the plug column in the utility model.

[0024] Figure 7 The sectional structure schematic diagram of the second shape of the plug column in the utility model.

[0025] The utility model discloses the realization, functional characteristics and advantages will be further described with reference to the drawings in conjunction with embodiment. DETAILED DESCRIPTION

[0026] In the description of the utility model, it is understood that the orientation or position relation of the terms "center", "upper", "lower", "front", "rear", "left", "right" and the like indicated in the drawings is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or component indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it is understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, can be fixedly connected, or detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two components. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] It should be noted that the present equipment is suitable for moving the heavy objects including turnout, short rail, point rail, hump speed reducer and the like on the railway transversely.

[0029] As shown in the accompanying Figures 1 to 7The utility model provides a first aspect telescopic rod, including inner tube 1, outer tube 2 and plug post 3, plug post 3 includes cylinder 31 and adopts the non-enclosed locking ring 32 of soft material, and one end of cylinder 31 is connected with the one end of inner tube 1, and the cylindrical surface of the other end of cylinder 31 is equipped with the clamping groove 311 near inner tube 1, and locking ring 32 is clamped into the clamping groove 311 through the non-enclosed opening, and the end face of the non-enclosed opening end of locking ring 32 is in abutment with the end face of clamping groove 311, and inner tube 1 and plug post 3 are set in outer tube 2;When using, exert external force to make inner tube 1 rotate to one direction, and locking ring 32 is extruded and deformed in outer tube 2, and locking ring 32 is extruded and deformed and rubs with the wall of outer tube 2, and the axial positioning between inner tube 1 and outer tube 2;When exerting external force to make inner tube 1 rotate to another direction, the deformed locking ring 32 restores, and the axial positioning between inner tube 1 and outer tube 2 is released;In this way, the length of telescopic rod in a certain range can be adjusted at will;Solve the problem that standard pipe and non-standard pipe need to be equipped in the prior art, reduce the production cost of manufacturer and improve user experience.

[0030] For example, the length of outer tube 2 is 500MM, and the length of inner tube 1 plus plug post 3 is also 500MM, wherein the length of inner tube 1 is 470MM, and the length of plug post 3 outside inner tube 1 is 30MM, then the telescopic length of telescopic pipe can be adjusted between 500MM and 970MM.

[0031] Embodiment one, see Figure 5 The shape of the clamping groove 311 is: in the axial direction of the cylindrical surface, a first abutment surface 312 is cut and stretched inward, the first abutment surface 312 is cut and stretched radially along the cylinder 31, the depth of the cut and stretch gradually decreases, forming an arc bottom surface 313 of the clamping groove 311;The shape of the non-enclosed locking ring 32 made of soft material is: the inner ring shape of the transverse cross section of the locking ring 32 is similar to the outer ring shape of the transverse cross section of the clamping groove 311, and the size of the inner ring of the locking ring 32 is greater than the size of the outer ring of the clamping groove 311, the diameter of the outer ring of the locking ring 32 is greater than the outer diameter of the inner tube 1 and less than the inner diameter of the outer tube 2;The non-enclosed opening of the locking ring 32 is a gap 321 in the axial direction of the locking ring 32, so that the locking ring 32 has a first radial end surface 322 and a second radial end surface 323;The height of the first radial end surface 322 is greater than the height of the second radial end surface 323, and the height of the first radial end surface 322 is greater than the depth of the first abutment surface 312.

[0032] Specifically, taking the example of clockwise rotating to lock the axial positioning of the inner tube 1 and the outer tube 2, and counterclockwise rotating to release the axial positioning of the inner tube 1 and the outer tube 2, the clamping groove 311 is inwardly sheared and stretched to form a first abutting surface 312, the first abutting surface 312 is radially sheared and stretched to the left along the column 31, the depth of the shearing and stretching gradually decreases, and an arc-shaped bottom surface 313 of the clamping groove 311 is formed; the locking ring 32 is correspondingly thick on the left side and thin on the right side, so that after the locking ring 32 is clamped into the clamping groove 311, when the locking ring 32 is counterclockwise rotated, the left end surface of the locking ring 32 is lower than the first abutting surface 312, and the plug column 3 can move axially in the outer tube 2; when the inner tube 1 is clockwise rotated, the left end surface of the locking ring 32 moves away from the first abutting surface 312, like a wedge, extrudes and deforms, clamps the inner tube 1 and the outer tube 2, so that the inner tube 1 and the outer tube 2 cannot move axially.

[0033] Further to the first embodiment, the arc length of the arc-shaped bottom surface 313 is greater than the radius of the arc.

[0034] In the second embodiment, referring to Figure 6 and Figure 7 , the clamping groove 311 on the column 31 is two slot bodies 3311 connected in head-to-tail, the shape of the slot body 3311 is that: in the axial direction of the column surface, a first abutting surface a331 is inwardly sheared and stretched, the first abutting surface a331 is radially sheared and stretched by 180 degrees along the column 31, the depth of the shearing and stretching gradually decreases, and an arc-shaped bottom surface a332 of the slot body 3311 is formed; the shape of the non-closed locking ring 32 made of soft material is that: the inner ring shape of the transverse section of the locking ring 32 is similar to the outer ring shape of the transverse section of the clamping groove 311, and the size of the inner ring of the locking ring 32 is greater than the size of the outer ring of the clamping groove 311, the diameter of the outer ring of the locking ring 32 is greater than the outer diameter of the inner tube 1 and less than the inner diameter of the outer tube 2; the non-closed of the locking ring 32 is that a gap a341 is provided in the axial direction of the locking ring 32, so that the locking ring 32 has a first radial end surface a342 and a second radial end surface a343; the height of the first radial end surface a342 is greater than the height of the second radial end surface a343, and the height of the first radial end surface a342 is greater than the depth of the first abutting surface a331.

[0035] The use principle of the second embodiment is the same as that of the first embodiment, and the difference lies in the specific shape of the clamping groove 311 and the locking ring 32, which divides the clamping groove 311 into two slot bodies 3311 connected in head-to-tail, and the shape of the corresponding locking ring 32; such a locking ring 32 and slot body 3311 cooperate, and when locked, it is more firm and prevents the locking of the inner tube 1 and the outer tube 2 from being released unexpectedly.

[0036] Preferably, the annular soft plug 4 is sleeved on one end of the outer tube 2, the inner tube 1 is sleeved in the outer tube 2 after passing through the annular soft plug 4, and the outer diameter of the annular soft plug 4 is equal to the inner diameter of the outer tube 2; it should be noted that the outer diameter of the inner tube 1 is smaller than the outer diameter of the locking ring 32, and the outer diameter of the locking ring 32 is smaller than the inner diameter of the outer tube 2, so that when the inner tube 1 is fixed with the outer tube 2 through the plug column 3, the end of the inner tube 1 away from the plug column 3 will shake due to the difference between the outer diameter of the inner tube 1 and the inner diameter of the outer tube 2. In order to reduce the shaking amplitude, an annular soft plug 4 is arranged at the end of the outer tube 2 away from the plug column 3, and the inner diameter of the annular soft plug 4 is matched with the outer diameter of the inner tube 1; assuming that the outer diameter of the inner tube 1 is 23MM, the outer diameter of the locking ring 32 is 24.4MM, and the inner diameter of the outer tube is 24.6MM, then the difference between the outer diameter of the inner tube 1 and the inner diameter of the outer tube 2 is 1.6MM, and when the inner tube 1 and the outer tube 2 are positioned, especially when the length of the inner tube 1 extending out of the outer tube 2 is relatively long, the shaking amplitude will be large. If an annular soft plug 4 is arranged at one end of the outer tube 2, and the inner diameter of the annular soft plug 4 is set to 23MM-23.2MM, then after the inner tube 1 and the outer tube 2 are positioned, the plug column 3 is positioned, and the annular soft plug 4 limits the shaking of the inner tube 1, that is, the two positions, so that the shaking amplitude can be greatly reduced.

[0037] Preferably, one side of the annular soft plug 4 is provided with a guide portion 41; it can be understood that if an external object is to slide on the telescopic rod, the difference between the outer diameter of the inner tube 1 and the outer diameter of the outer tube 2 will block the external object from sliding on the telescopic rod, and it is necessary to provide a guide portion 41 on the outer side of the annular soft plug 4 to reduce the sliding resistance of the external object, that is, to provide a slope, and the low point of the slope is slightly larger than the outer diameter of the inner tube 1, and the high point of the slope is consistent with the outer diameter of the outer tube 2.

[0038] In another aspect, the utility model still provides a spliced curtain rod, the telescopic rod is applied to the curtain rod, the curtain rod includes two end plugs 100 and multiple pipe bodies 101 which are same in structure, detachable and connected head to tail, one end plug 100 is connected with the free end of one pipe body 101 at one end, further includes the telescopic rod described in above embodiment, the free end of one pipe body 101 at the other end is connected with the outer tube 2 of telescopic rod and one end close to the plug column 3, the other end plug 100 and the inner tube 1 are connected with one end away from the plug column 3, the outer diameter of pipe body 101 is same with the outer diameter of the outer tube 2 of telescopic rod. It can be understood that pipe body 101 is a standard part, the length of multiple pipe bodies 101 and the outer tube 2 of telescopic rod is the approximate length of the curtain rod required by the customer, for example, the length of one pipe body 101 is 500MM, when the length of the curtain rod required by the customer is 2000MM to 2470MM, the merchant can provide three pipe bodies 101 and one telescopic rod for the customer, specifically, when the length of the curtain rod required by the customer is 2110MM, three standard pipe bodies 101 are spliced, then the telescopic rod and pipe body 101 are spliced, the length is 2000MM at this time, then the inner tube 1 is pulled out 100MM from the outer tube 2, then the inner tube 1 is turned clockwise relative to the outer tube 2, then the inner tube 1 and the outer tube 2 can be fixed, then the length of the curtain rod is 2100MM required by the customer.

[0039] Preferably, one end of the pipe body 101 is provided with internal thread, the other end is shrunk, and external thread is arranged on the shrunk end; the multiple pipe bodies 101 are detachably connected head to tail by the internal thread of one pipe body 101 and the external thread of another pipe body 101.

[0040] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the claims attached to the utility model.

Claims

1. A telescopic pole, characterized in that, The utility model provides a kind of plug-in connector, including inner tube (1), outer tube (2) and plug post (3), plug post (3) includes cylinder (31) and the non-closed locking ring (32) made of soft material, one end of cylinder (31) is connected with the one end of inner tube (1), and the cylindrical surface of the other end of cylinder (31) is equipped with clamping groove (311) near inner tube (1), locking ring (32) is clamped into clamping groove (311) by non-closed opening, and inner tube (1) and plug post (3) are set in outer tube (2).

2. A telescopic pole according to claim 1, characterised in that The shape of the clamping groove (311) is that: in the axial direction of the cylindrical surface, a first abutment surface (312) is cut and stretched inwardly, the first abutment surface (312) is cut and stretched radially along the cylinder (31), the depth of the cut and stretch gradually decreases, forming an arc bottom surface (313) of the clamping groove (311); the non-closed locking ring (32) made of soft material has a shape that: the inner ring shape of the transverse cross section of the locking ring (32) is similar to the outer ring shape of the transverse cross section of the clamping groove (311), and the size of the inner ring of the locking ring (32) is greater than the size of the outer ring of the clamping groove (311), the diameter of the outer ring of the locking ring (32) is greater than the outer diameter of the inner tube (1) and less than the inner diameter of the outer tube (2); the non-closure of the locking ring (32) is that an opening (321) is provided in the axial direction of the locking ring (32), so that the locking ring (32) has a first radial end surface (322) and a second radial end surface (323); the height of the first radial end surface (322) is greater than the height of the second radial end surface (323), and the height of the first radial end surface (322) is greater than the depth of the first abutment surface (312).

3. A telescopic pole according to claim 2, characterised in that, The arc length of the arc-shaped bottom surface (313) is greater than the radius of the arc.

4. The telescopic pole of claim 1, wherein, The clamping groove (311) on the cylinder (31) is two slot bodies (3311) connected head to tail, the shape of the slot body (3311) is that: in the axial direction of the cylindrical surface, a first abutment surface a (331) is cut and stretched inwardly, the first abutment surface a (331) is cut and stretched radially along the cylinder (31) by 180 degrees, the depth of the cut and stretch gradually decreases, forming an arc bottom surface a (332) of the slot body (3311); the non-closed locking ring (32) made of soft material has a shape that: the inner ring shape of the transverse cross section of the locking ring (32) is similar to the outer ring shape of the transverse cross section of the clamping groove (311), and the size of the inner ring of the locking ring (32) is greater than the size of the outer ring of the clamping groove (311), the diameter of the outer ring of the locking ring (32) is greater than the outer diameter of the inner tube (1) and less than the inner diameter of the outer tube (2); the non-closure of the locking ring (32) is that an opening a (341) is provided in the axial direction of the locking ring (32), so that the locking ring (32) has a first radial end surface a (342) and a second radial end surface a (343); the height of the first radial end surface a (342) is greater than the height of the second radial end surface a (343), and the height of the first radial end surface a (342) is greater than the depth of the first abutment surface a (331).

5. Telescopic pole according to claim 1 or 2 or 3 or 4, characterized in that, Also included is a ring-shaped soft plug (4) sleeved on one end of the outer tube (2), the inner tube (1) is sleeved in the outer tube (2) after passing through the ring-shaped soft plug (4), and an outer diameter of the ring-shaped soft plug (4) is equal to an inner diameter of the outer tube (2).

6. A telescopic pole according to claim 5, characterised in that, An outer side of one end of the ring-shaped soft plug (4) is provided with a guide portion (41).

7. A spliced curtain rod comprising two end plugs (100) and a plurality of structurally identical, detachable, end-to-end connectable tube bodies (101), one end plug (100) being connected to the free end of one tube body (101) at one end, characterized in that, Also included is the telescopic rod of any one of claims 1-6; a free end of one tube body (101) of the other end is connected to one end of the outer tube (2) of the telescopic rod close to the plug column (3); the other end plug (100) and the inner tube (1) are connected away from one end of the plug column (3); an outer diameter of the tube body (101) is consistent with an outer diameter of the outer tube (2) of the telescopic rod.

8. The spliced curtain rod of claim 7, wherein, One end of the tube body (101) is provided with an internal thread, and after the other end is shrunk, an external thread is arranged on the shrunk end.

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