An adjustable length support bar

Abstract

The utility model belongs to the field of support rod, especially adjustable length support rod, including telescopic rod body, the both ends of telescopic rod body are provided with abutting seat, telescopic rod body includes first rod body and second rod body, first rod body is sleeved in second rod body, and the end of first rod body is fixedly provided with metal sheet, and metal sheet is bent and makes itself have the deformation ability, and the end of metal sheet is provided with at least one sharp part, and metal sheet is abutted on the inner wall of second rod body through the sharp part, metal sheet lets telescopic rod body move in one direction, be provided with push rod in first rod body, be provided with push part on push rod, and the end of push rod is abutted on metal sheet, drive push part, and push rod pushes metal sheet to deform, and first rod body and second rod body lose the spacing of metal sheet, and telescopic rod body can be lengthened or shortened, at least one abutting seat position is provided with adjusting seat, and the distance between telescopic rod body and abutting seat is adjusted by rotating adjusting seat. The utility model provides a kind of adjustable length support rod of convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of support rod structure technology, and specifically refers to a support rod with adjustable length. Background Technology

[0002] Telescopic bars are popular due to their versatility. In daily life, they can be installed in wardrobes to hang clothes or between two opposite walls to hang items such as shower curtains. Telescopic bars are also used in pull-up bars, employing a telescopic design so that both ends can be firmly pressed against the two opposite sides of a door frame, allowing the exerciser to perform pull-ups. Typically, to ensure the pull-up bar is securely fastened to the door frame and prevent it from falling, anti-loosening devices are installed. However, most anti-loosening devices use screws for positioning, which are cumbersome to adjust and ineffective.

[0003] For example, Chinese patent CN201420677089.0 describes a door bar with a self-locking device, comprising a central bar, a left-rotating telescopic bar, and a right-rotating telescopic bar. The central bar is hollow, with the left and right telescopic bars respectively positioned at its left and right ends. A lead screw is fixed inside the central bar, and the left and right telescopic bars are rotatably connected to the ends of the lead screw. A left self-locking device is located at the connection between the left and right telescopic bars and the central bar, and a right self-locking device is located at the connection between the right and right telescopic bars. Internal threads are present on the inner walls of both ends of the central bar, and external threads are present on the outer walls of the left and right self-locking devices. The left and right self-locking devices are threadedly adjusted to the ends of the central bar. However, this product also has certain shortcomings: the lead screw structure requires high precision and strength, and the lead screw may bend after high-intensity operation, causing rotational obstruction during adjustment. Therefore, there is an urgent need for a telescopic bar that does not rely on a lead screw for length adjustment and is easy to operate. Summary of the Invention

[0004] The purpose of this invention is to provide a support rod with an adjustable length that is easy to operate.

[0005] The purpose of this utility model is achieved as follows:

[0006] An adjustable-length support rod includes a telescopic rod body with abutment seats at both ends. The telescopic rod body includes a first rod body and a second rod body, with the first rod body sleeved inside the second rod body. A metal sheet is fixedly installed at the end of the first rod body, and the metal sheet is bent to have deformation capability. The end of the metal sheet is provided with at least one tip, which abuts against the inner wall of the second rod body. Due to the obliquely arranged metal sheet, the metal sheet does not prevent the first rod body and the second rod body from moving in the separation direction, but prevents the first rod body and the second rod body from moving in the convergence direction.

[0007] The first rod body is provided with a push rod, and the push rod is provided with a pushing part. The pushing part is exposed to the outside for the user to push. The end of the push rod abuts against the metal plate. When the pushing part is driven, the push rod pushes the metal plate to deform. The metal plate no longer limits the first rod body and the second rod body, and the first rod body and the second rod body can slide relative to each other.

[0008] At least one abutment position is provided with an adjustment seat, and by rotating the adjustment seat, the distance between the telescopic rod and the abutment can be adjusted.

[0009] Furthermore, the first rod body is provided with a slot, and the pushing part is movably disposed in the slot. The metal plate applies force to the push rod and causes the pushing part to abut against the end of the slot.

[0010] Furthermore, a positioning sleeve is fixedly provided at the end of the push rod. The positioning sleeve is adapted to the inner wall of the first rod body. The positioning sleeve moves along the inner wall of the first rod body. The pushing part is integrally formed on the positioning sleeve or the pushing part is fixedly provided on the positioning sleeve.

[0011] Furthermore, a sliding sleeve is fitted on the outer side of the first rod body, the sliding sleeve being the pushing part, and the sliding sleeve being fixedly connected to the push rod;

[0012] Furthermore, a positioning sleeve is fixedly provided at the end of the push rod, and the sliding sleeve is fixed on the positioning sleeve; or, a pin fixes the sliding sleeve and the push rod.

[0013] Furthermore, the adjusting seat is rotatably mounted on the abutment seat, and the end of the telescopic rod is provided with a connector, which is threadedly connected to the adjusting seat; or, the adjusting seat is rotatably mounted on the telescopic rod, and the abutment seat is provided with a connector, which is threadedly connected to the adjusting seat.

[0014] Furthermore, the connector is fixed to the end of the first rod, the adjusting seat has a chamber with an internal thread, and the connector has an external thread that mates with the chamber.

[0015] Furthermore, the connector is provided with an elastic buckle, and the abutment is provided with a hole, the elastic buckle can deform and enter into the hole, and the hook of the elastic buckle can abut against the inner surface of the hole.

[0016] Furthermore, bushings are provided at the ends of the first rod and / or the second rod, the bushings restricting the separation of the first rod and the second rod.

[0017] Furthermore, the metal sheet has a flat section and an inclined section. The flat section is attached to and fixed to the first rod body. The end of the inclined section is provided with at least two tips, and multiple tips simultaneously abut against the inner wall of the second rod body. The push rod abuts against the inclined section.

[0018] Furthermore, the second rod is an aluminum tube, or an aluminum tube or aluminum strip is embedded in the second rod, and the tip can be recessed on the aluminum surface.

[0019] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0020] 1. This utility model uses a metal plate engaging with the inner wall of the second rod for locking. The metal plate is elastic, and its bending creates a one-way locking effect, allowing the user to quickly separate the first and second rods, thus achieving rapid extension of the telescopic rod. During extension, there are no alignment requirements between the first and second rods; even axial rotation of the first and second rods does not affect the limiting position, providing a high degree of freedom. To retract the first and second rods, a push rod is driven to deform the metal plate, preventing its tip from engaging with the inner wall of the second rod, allowing the user to retract the telescopic rod. The telescopic rod serves as a quick-adjustment component, while the adjusting seat provides precise adjustment. When the user places the support rod between two walls, they first pull the first and second rods to their approximate length, allowing the two abutments to contact the wall surface. Then, rotating the adjusting seat separates the telescopic rod from the abutments, ensuring stable support between the two walls. The operation is simple for the user.

[0021] 2. The metal sheet of this utility model has its own elasticity. The elasticity of the metal sheet is used to push the pushing part on the push rod against the end of the groove. There is no need to set an elastic element on the push rod separately. The structure is simple. During assembly, it is only necessary to install the push rod and the pushing part into the designated position.

[0022] 3. The second rod of this utility model is made of aluminum tube or inlaid aluminum strip. Taking advantage of the relatively soft surface of aluminum, the tip of the metal piece can be recessed on the aluminum surface, so that the metal piece can effectively achieve one-way locking. Since the length adjustment of the telescopic rod is a quick adjustment and does not require extremely high precision, this locking method only needs to achieve stable placement. Precise adjustment can be made through the adjustment seat. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model;

[0025] Figure 3 This is one of the exploded structural diagrams of Embodiment 1 of this utility model;

[0026] Figure 4 yes Figure 3 A magnified structural diagram at point A;

[0027] Figure 5 yes Figure 3 A magnified structural diagram at point B;

[0028] Figure 6 This is the second exploded structural diagram of Embodiment 1 of this utility model;

[0029] Figure 7 yes Figure 6 A magnified structural diagram at point C;

[0030] Figure 8 This is a structural schematic diagram of Embodiment 2 of this utility model;

[0031] Figure 9 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model;

[0032] Figure 10 This is an exploded structural diagram of Embodiment 2 of this utility model;

[0033] Figure 11 yes Figure 10 A magnified structural diagram at point D;

[0034] Figure 12 This is a schematic diagram of the exploded internal structure of Embodiment 2 of this utility model;

[0035] Figure 13 yes Figure 12 A magnified structural diagram at point E.

[0036] In the diagram: 1-Telescopic rod; 11-Second rod; 12-First rod; 121-Slot; 122-Connector; 19-Bushing; 2-Abutment; 20-Hole; 201-Inner surface of hole; 3-Adjusting seat; 31-Internal thread; 32-Elastic buckle; 4-Pushing part; 40-Pin; 41-Push rod; 42-Positioning sleeve; 6-Metal plate;

[0037] 61-Flat section; 62-Sloping section; 621-Pointed part; 9-Rivet. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1-13 As shown:

[0039] An adjustable-length support rod includes a telescopic rod body 1, with abutment seats 2 at both ends of the telescopic rod body 1. The telescopic rod body 1 includes a first rod body 12 and a second rod body 11. The first rod body 12 is sleeved inside the second rod body 11. A metal sheet 6 is fixedly provided at the end of the first rod body 12. The metal sheet 6 is bent to have deformation capability. At least one tip 621 is provided at the end of the metal sheet, and the metal sheet abuts against the inner wall of the second rod body 11 through the tip 621. Due to the obliquely arranged metal sheet, the metal sheet does not prevent the first rod body and the second rod body from moving apart. When moving away from the direction, the metal plate prevents the first and second rods from moving towards each other. A push rod 41 is installed inside the first rod, and a pushing part 4 is installed on the push rod 41. The pushing part 4 is exposed for the user to push, and the end of the push rod 41 abuts against the metal plate 6. Driving the pushing part causes the push rod to deform the metal plate, removing the metal plate's restraint between the first and second rods, allowing them to slide relative to each other. At least one abutment position is provided with an adjusting seat 3; rotating the adjusting seat 3 adjusts the distance between the telescopic rod 1 and the abutment 2. One-way locking is achieved through the metal plate 6. When the metal plate is not subjected to external force, the telescopic rod 1 can freely extend and cannot shorten. When the user drives the push rod 41 and deforms the metal plate 6, the telescopic rod can freely extend or shorten. The telescopic rod serves as the quick-adjustment component, while the adjustment seat provides precise adjustment. When the user places the support rod between two walls, they first pull the first and second rods to their approximate lengths, allowing the two abutments to contact the wall surfaces. Then, they rotate the adjustment seat to separate the telescopic rod from the abutments, thus providing stable support between the two walls. The operation is simple for the user. Preferably, the second rod is an aluminum tube, or an aluminum tube or strip is embedded within the second rod. The tip can be recessed into the aluminum surface, allowing the metal plate to effectively achieve one-way locking, resulting in a more stable lock. Since the telescopic rod's length adjustment is quick and does not require extremely high precision, this locking method only needs to ensure stable placement, with precise adjustment achieved through the adjustment seat.

[0040] The first rod body 12 is provided with a slot 121, and the pushing part 4 is movably disposed in the slot 121. The metal sheet applies force to the push rod and causes the pushing part to abut against the end of the slot. Utilizing the elasticity of the metal sheet itself, the push rod is held in the designated position, and the user only needs to push the pushing part, resulting in a simple structure.

[0041] Preferably, the metal sheet 6 has a flat section 61 and an inclined section 62. The flat section 61 is attached to the first rod 12 and fixed to the first rod 12 by fasteners such as rivets 9 or screws. The end of the inclined section 62 is provided with at least two tips 621, and multiple tips 621 simultaneously abut against the inner wall of the second rod 12. The push rod 41 abuts against the inclined section 62. Under the action of the inclined section 62, the push rod is located above the inclined section, so that the user can push the metal sheet to deform with less effort.

[0042] The adjusting seat 3 is rotatably mounted on the abutment seat 2, and a connector 122 is fixedly mounted on the end of the telescopic rod 1, with the connector 122 threadedly connected to the adjusting seat 3; alternatively, the adjusting seat is rotatably mounted on the telescopic rod, and a connector is fixedly mounted on the abutment seat, with the connector threadedly connected to the adjusting seat. Both methods are acceptable, and the manufacturer can choose one method for production.

[0043] The connector 122 is fixed to the end of the first rod 12. The adjusting seat 3 has a chamber with an internal thread 31 inside. The connector 122 has an external thread that mates with the chamber. The internal thread structure is protected to prevent damage to the structure from accidental collisions during use.

[0044] The connector 3 is provided with an elastic buckle 32, and the abutment 2 is provided with a hole 20. The elastic buckle 32 can deform and enter into the hole 20, and the hook of the elastic buckle can abut against the inner surface 201 of the hole. This structure facilitates product assembly; it is only necessary to clamp the connector and the abutment together.

[0045] A bushing 19 is provided at the end of the first rod 12 and / or the second rod 11, and the bushing 19 restricts the separation of the first rod 12 and the second rod 11.

[0046] Example 1, such as Figure 8-13 As shown, a positioning sleeve 42 is fixedly provided at the end of the push rod. The positioning sleeve 42 is adapted to the inner wall of the first rod body 12, and the positioning sleeve 42 moves along the inner wall of the first rod body 12. The pushing part is integrally formed on the positioning sleeve or the pushing part is fixedly provided on the positioning sleeve. The positioning sleeve 42 has a holding function, and this structure facilitates assembly by the manufacturer. Figure 8 and Figure 9 As shown, first fix the push rod 41 and the positioning sleeve 42, then push them into the first rod body 12, and then fix the pushing part directly or indirectly on the positioning sleeve. Of course, the pushing part can also be integrally formed on the positioning sleeve.

[0047] Example 2 differs from Example 1 in that the structure of the pushing part is different. For example... Figure 1-7As shown. A sliding sleeve is fitted on the outer side of the first rod body 12. The sliding sleeve is the pushing part and is fixedly connected to the push rod. The sliding sleeve and the push rod can be fixed in at least the following ways: Method 1, a positioning sleeve is fixedly provided at the end of the push rod, and the sliding sleeve is fixed on the positioning sleeve. Method 2, a pin 40 fixes the sliding sleeve and the push rod.

[0048] The support rod of this application can be used in various product fields such as shower curtain rods, clothes drying rods, and horizontal bars.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A length-adjustable support rod comprising a telescopic rod body, both ends of the telescopic rod body are provided with abutting seats; characterized in that: The telescopic rod includes a first rod and a second rod. The first rod is sleeved inside the second rod. A metal sheet is fixedly provided at the end of the first rod. The metal sheet can be bent to give it deformation capability. The end of the metal sheet is provided with at least one tip. The metal sheet abuts against the inner wall of the second rod through the tip. Due to the obliquely arranged metal sheet, the metal sheet does not prevent the first rod and the second rod from moving in the separation direction, but prevents the first rod and the second rod from moving in the convergence direction. The first rod body is provided with a push rod, and the push rod is provided with a pushing part. The pushing part is exposed to the outside for the user to push. The end of the push rod abuts against the metal plate. When the pushing part is driven, the push rod pushes the metal plate to deform. The metal plate no longer limits the first rod body and the second rod body, and the first rod body and the second rod body can slide relative to each other. At least one abutment position is provided with an adjustment seat, and by rotating the adjustment seat, the distance between the telescopic rod and the abutment can be adjusted.

2. The length adjustable support pole according to claim 1, wherein: The first rod body is provided with a slot, and the pushing part is movably disposed in the slot. The metal plate applies force to the push rod and causes the pushing part to abut against the end of the slot.

3. The length adjustable support pole according to claim 2, wherein: The end of the push rod is fixedly provided with a positioning sleeve, which is adapted to the inner wall of the first rod. The positioning sleeve moves along the inner wall of the first rod. The pushing part is integrally formed on the positioning sleeve or the pushing part is fixedly provided on the positioning sleeve.

4. The length adjustable support bar of claim 2, wherein: A sliding sleeve is fitted on the outer side of the first rod body. The sliding sleeve is the pushing part and is fixedly connected to the push rod. The end of the push rod is fixedly provided with a positioning sleeve, and the sliding sleeve is fixed on the positioning sleeve; or, a pin fixes the sliding sleeve and the push rod.

5. The length adjustable support pole according to claim 1 or 2 or 3 or 4, characterized in that: The adjusting seat is rotatably mounted on the abutment seat, and a connector is fixedly mounted at the end of the telescopic rod, with the connector threadedly connected to the adjusting seat; or, the adjusting seat is rotatably mounted on the telescopic rod, and a connector is fixedly mounted on the abutment seat, with the connector threadedly connected to the adjusting seat.

6. The length adjustable support bar of claim 5, wherein: The connector is fixed to the end of the first rod. The adjusting seat has a chamber with an internal thread and the connector has an external thread that mates with the chamber.

7. The length adjustable support pole according to claim 6, characterized in that: The connector is provided with an elastic buckle, and the abutment is provided with a hole. The elastic buckle can deform and enter the hole, and the hook of the elastic buckle can abut against the inner surface of the hole.

8. The length adjustable support pole according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: The first rod and / or the second rod are provided with bushings at their ends, and the bushings restrict the separation of the first rod and the second rod.

9. The adjustable length support pole of claim 1 or 2 or 3 or 4 or 6 or 7, wherein: The metal sheet has a flat section and an inclined section. The flat section is attached to and fixed to the first rod body. The end of the inclined section is provided with at least two tips, and multiple tips simultaneously abut against the inner wall of the second rod body. The push rod abuts against the inclined section.

10. The length adjustable support pole according to claim 9, characterized in that: The second rod is an aluminum tube, or an aluminum tube or aluminum strip is embedded in the second rod, and the tip can be used to create a dent on the aluminum surface.

Images