Stepless-adjustment telescopic supporting rod

Abstract

The stepless regulation telescopic supporting rod comprises a first branch pipe, a second branch pipe and a pushing mechanism, the pushing mechanism comprises a shell, a swing structure, a first handle, a first pushing block, a first spring and a locking mechanism, the first pushing block is arranged on the outer side of the second branch pipe in a sleeved mode through a first sleeve hole, the first handle extends out of the shell, and the second handle extends out of the shell. When the first handle is pushed to swing in the direction close to the first branch pipe, the swing structure can push one end of the first push block to move upwards at the same time, and the side wall edge of the first sleeve hole pushes the second branch pipe to slide upwards. The telescopic supporting rod not only can stably support the wall cupboard in installation, but also can conveniently adjust the installation position of the wall cupboard, and when the height of the installation position of the wall cupboard is downward to generate an error, the second branch pipe can be pushed to drive the wall cupboard to move upwards to adjust the installation position of the wall cupboard only by swinging the first handle rightwards, so that the installation position of the wall cupboard is adjusted. And the adjustment operation is very convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of support rod devices, specifically relating to a telescopic support rod with stepless adjustment. Background Technology

[0002] During the installation of wall cabinets, support devices are usually needed to support the cabinets to facilitate the installation.

[0003] The existing wall cabinet support device structure includes a first branch pipe, a second branch pipe that passes through the first branch pipe and can slide axially relative to the first branch pipe, a base located at the lower end of the first branch pipe, a top seat located at the upper end of the second branch pipe, and a locking mechanism for restricting the sliding of the second branch pipe. In use, first place the wall cabinet to be installed in the preset position, then support the base on the ground, with the top seat positioned below the wall cabinet. Next, release the locking mechanism from the second branch pipe, and then manually push the second branch pipe upwards so that the top seat presses against the bottom of the wall cabinet. Finally, the locking mechanism again restricts the sliding of the second branch pipe, thus completing the support operation for the wall cabinet and facilitating its installation.

[0004] However, the aforementioned support device still has shortcomings. When placing the wall cabinet to be installed in the preset position, due to its weight, the wall cabinet often tends to shift downwards, causing errors in its installation position. The existing support device requires manually pushing the second branch pipe upwards. Therefore, when a heavy wall cabinet is supported on the top bracket, it is difficult for the user to continue pushing the second branch pipe upwards to adjust the installation position. Instead, the user must first lift the wall cabinet to the accurate pre-installation position before manually pushing the second branch pipe upwards to allow the top bracket to hold the wall cabinet in place, thus securing the wall cabinet in place. Utility Model Content

[0005] To address the shortcomings of the existing technology, the purpose of this utility model is to provide a steplessly adjustable telescopic support rod. This telescopic support rod uses a pushing mechanism to push the second branch pipe upward, thereby directly pushing the wall cabinet upward to adjust the accurate installation position of the wall cabinet.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a steplessly adjustable telescopic support rod, comprising a first branch pipe, a second branch pipe that passes through the first branch pipe and can slide axially relative to the first branch pipe, and a pushing mechanism for pushing the second branch pipe to slide axially relative to the first branch pipe; the pushing mechanism comprises a housing, a swing structure rotatably connected to the housing, a first handle connected to the swing structure, a first push block, a first spring, and a locking mechanism for restricting the downward sliding of the second branch pipe, wherein the housing is fixed at the upper end of the first branch pipe, the second branch pipe passes through the housing and can slide relative to the housing, the first push block has a first sleeve hole, the width of the first sleeve hole is greater than the width of the second branch pipe, and the first push block is fitted onto the outside of the second branch pipe through the first sleeve hole; the first spring is fitted onto the outside of the second branch pipe and is located above the first push block, the first handle extends out of the housing, and when the first handle is pushed to swing towards the first branch pipe, the swing structure simultaneously pushes one end of the first push block upward, causing the sidewall edge of the first sleeve hole to push the second branch pipe upward.

[0007] In the above scheme, a base can be installed at the lower end of the first branch pipe, and a top seat can be installed at the upper end of the second branch pipe. The base is then supported on the ground or table, and the top seat is placed against the bottom of the cabinet to be installed. When the height of the cabinet installation position is incorrect, the first handle can be pushed to the right (i.e., to swing closer to the first branch pipe). This causes the first handle to drive the swinging mechanism to push the right end of the first push block upward. At the same time, the side wall edge of the first socket of the first push block pushes the second branch pipe upward, thereby causing the second branch pipe to drive the top seat to move the cabinet upward and adjust the installation position of the cabinet. It is equivalent to directly moving the cabinet upward by pushing the first handle to the right to adjust the installation position, which is convenient. When the first handle is released, the first spring will push the first push block and the first handle back to their original positions, so that the second branch pipe can be continuously adjusted by pushing the first handle to the right multiple times. The locking mechanism restricts the downward sliding of the second branch pipe, which ensures the stability of the telescopic support rod supporting the cabinet. When the locking mechanism is released, the second branch pipe can be easily pushed downward.

[0008] Furthermore, the right end of the first push block abuts against the inner side of the outer casing, and a support plate is provided below the first push block. The support plate abuts against the inner side of the outer casing. The left end of the first push block is pushed against the support plate by the first spring to keep the first push block in an inclined state with the left end lower and the right end higher.

[0009] Furthermore, when the first handle is pushed to the right, the free end of the swing structure comes into contact with the right end of the first push block, thereby enabling the free end of the swing structure to push the right end of the first push block to move upward.

[0010] Furthermore, the aforementioned locking mechanism includes a first locking block, a second spring, and a pushing assembly. The first locking block has a limiting hole, the width of which is greater than the width of the second branch tube. The first locking block is fitted onto the outside of the second branch tube through its limiting hole. The second spring is fitted onto the outside of the second branch tube. The second spring pushes the first locking block into an inclined state, causing the edge of the limiting hole's sidewall to abut against the outside of the second branch tube. Under the action of the edge of the limiting hole abutting against its outer sidewall, the second branch tube cannot slide downwards but can only slide upwards, thus realizing the structural function of the locking mechanism in restricting the downward sliding of the second branch tube. When the pushing assembly is operated to push the first locking block, causing its tilt angle to decrease, the abutting force between the edge of the limiting hole's sidewall and the outside of the second branch tube is reduced, thus reducing the friction between them. This releases the restriction of the locking mechanism on the second branch tube, allowing the second branch tube to be easily pushed downwards, thereby realizing the rapid retraction function of the telescopic support rod.

[0011] Furthermore, the aforementioned pushing component includes a rotating block located inside the housing and a second handle located outside the housing. The second handle is connected to the rotating block via a first rotating rod. Rotating the second handle upward will cause the rotating block to push the first locking block, causing its tilt angle to decrease, thereby releasing the locking mechanism from restricting the second branch tube, making the unlocking operation convenient.

[0012] Furthermore, the first locking block has a vertical block at its left end, and the right end of the first locking block abuts against the inner side of the outer shell. The left end of the first locking block is lower than the right end of the first locking block. The free end of the rotating block is connected to the vertical block. Rotating the second handle upward will cause the free end of the rotating block to drive the vertical block and the left end of the first locking block to move upward, thereby reducing the tilt angle of the first locking block and reducing the counterforce between the side wall edge of the limiting hole and the outer side of the second branch pipe.

[0013] Furthermore, the aforementioned locking mechanism also includes a second locking block located inside the housing. The second locking block also has a limiting hole. The second locking block is fitted onto the outside of the second branch tube through its limiting hole. The second locking block is stacked on top of the first locking block. The upper end of the second spring abuts against the lower side of the support plate, and the lower end of the second spring abuts against the upper side of the second locking block. Without external force, the second spring will push the second locking block and the first locking block to be in an inclined state at the same time, so that the sidewalls of the limiting holes of the two locking blocks abut against the outside of the second branch tube. This can better restrict the downward sliding of the second branch tube and make the structure more stable.

[0014] Furthermore, the inner wall of the aforementioned outer casing is provided with a support block, and the right end of the first locking block abuts against the upper part of the support block inside the outer casing. The aforementioned pushing mechanism also includes a second push block located inside the outer casing, a push seat rotatably connected to the second push block, and a third spring fitted on the outer side of the second branch pipe corresponding to the lower part of the second push block. The second push block has a second sleeve hole, the width of which is greater than the width of the second branch pipe. The second push block is fitted on the outer side of the second branch pipe corresponding to the lower part of the support block through the second sleeve hole. The third spring will push the right end of the second push block to abut against the lower part of the support block. When the first handle is pushed to swing to the left (i.e., swing away from the first branch pipe), the swinging structure will simultaneously push the push seat to rotate upward and push the first locking block to reduce its tilt angle, thereby releasing the restriction of the edge of the limiting hole on the downward sliding of the second branch pipe. At the same time, the push seat will also drive the left end of the second push block to move downward, so that the edge of the second sleeve hole side wall of the second push block pushes the second branch pipe to slide downward. The top seat also moves downward to make room, thereby allowing the wall cabinet to be moved down to adjust the installation position of the wall cabinet. The position adjustment operation is convenient. When the first handle is released, the third spring will push the second push block to reset. At the same time, the push base, the first handle, and the first locking block will also reset, so as to facilitate the continuous descent of the second branch tube by repeatedly pushing the first handle to the left. The reset of the first locking block will continue to restrict the downward sliding of the second branch tube.

[0015] Furthermore, the aforementioned push base is provided with a first protrusion and a second protrusion. The first protrusion is located on the top of the free end of the push base, and the second protrusion is located on the side of the free end of the push base. The upper end of the first protrusion abuts against the lower side of the first locking block. The swinging structure pushes the push base to rotate upward through the second protrusion. When the first handle is pushed to swing to the left, the swinging structure will push the second protrusion to drive the push base to rotate upward. At the same time, the first protrusion pushes the left end of the first locking block to move upward, thereby reducing the tilt angle of the first locking block.

[0016] Furthermore, the second push block is provided with two connecting lugs opposite each other. The push seat is rotatably connected to the two connecting lugs through the second rotating rod. When the swing structure pushes the second protrusion to drive the push seat to rotate upward, the push seat will drive the two connecting lugs and the left end of the second push block to move downward through the second rotating rod, so that the side wall edge of the second sleeve hole pushes the second branch pipe to slide downward.

[0017] This utility model's telescopic support rod not only provides stable support for the wall-mounted cabinet installation but also facilitates easy adjustment of the cabinet's installation height. Specifically, when the cabinet's installation height is incorrectly positioned downwards, simply swinging the first handle to the right will push the second branch tube, causing the cabinet to move slightly upwards to adjust its position. Conversely, when the cabinet's installation height is incorrectly positioned upwards, swinging the first handle to the left will push the second branch tube, causing the top mount to move downwards to create space, allowing the cabinet to move slightly downwards to adjust its position. Essentially, simply swinging the first handle to the left or right allows for the shortening or lengthening of the support rod, making adjustment very convenient. Turning the second handle upwards releases the restriction on the downward movement of the second branch tube, enabling rapid extension and retraction of the second branch tube, thus achieving the rapid extension and retraction function of the telescopic support rod. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the telescopic support rod in the retracted state of the second branch pipe, according to an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Enlarged view of section A.

[0020] Figure 3 This is a schematic diagram of the telescopic support rod in the second branch tube extended state according to an embodiment of the present invention (the front side plate structure of the outer shell is omitted in the figure).

[0021] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0022] Figure 5 This is an exploded structural diagram of the pushing mechanism of the telescopic support rod according to an embodiment of the present utility model. Detailed Implementation

[0023] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0026] Example 1

[0027] like Figure 1 , 2 As shown in Figure 3, this embodiment provides a continuously adjustable telescopic support rod, including a first branch pipe 1, a second branch pipe 2 that passes through the first branch pipe 1 and can slide axially relative to the first branch pipe 1, a base 3 located at the lower end of the first branch pipe 1, a top seat 4 located at the upper end of the second branch pipe 2, and a pushing mechanism 5 for pushing the second branch pipe 2 to slide axially relative to the first branch pipe 1. The second branch pipe 2 can slide downward relative to the first branch pipe 1 to a retracted state and can also slide upward relative to the first branch pipe 1 to an extended state.

[0028] like Figure 4 , 5 As shown, the aforementioned pushing mechanism 5 includes a housing 51, a swing structure 52 rotatably connected inside the housing 5, a first handle 521 connected to the swing structure 52, a first push block 53, a first spring 54, and a locking mechanism for restricting the downward sliding of the second branch pipe 2, all located inside the housing 51. The housing 51 includes a middle housing 501, a front side plate 502 located on the front side of the middle housing 501, and a rear side plate 503 located on the rear side of the middle housing 501. The middle housing 501 is fixed at the upper end of the first branch pipe 1. The second branch pipe 2 passes through the middle housing 501 and can slide relative to the middle housing 501. The first push block 53 has a first sleeve hole 531. The width of the first sleeve hole 531 is greater than the width of the second branch pipe 2. The first push block 53 is fitted onto the outside of the second branch pipe 2 through the first sleeve hole 531.

[0029] The first spring 54 is fitted outside the second branch pipe 2 and located on the upper side of the first push block 53. The middle housing 501 is provided with a support plate 511 below the first push block 53, and the right inner side of the middle housing 501 is provided with an abutment block 5111 above the support plate 511. The right end of the first push block 53 abuts against the abutment block 5111. The first spring 54 will push the left end of the first push block 53 to abut against the support plate 511, so as to keep the first push block 53 in an inclined state with the left end lower and the right end higher.

[0030] The aforementioned swing structure 52 is a Y-shaped structure. The lower end of the swing structure 52 is connected to the upper end of the first handle 521, and the first handle 521 extends out of the outer shell 51. The upper left end of the swing structure 52 is rotatably connected to the front side plate 502 and the rear side plate 503 of the outer shell 51 through the third rotating rod 504, so that the swing structure 52 can rotate around the third rotating rod 504 in the left and right directions. The upper right end of the swing structure 52 is a free end. When the first handle 521 is pushed to swing towards the first branch pipe 1, the free end of the swing structure 52 abuts against the right end of the first push block 53 and pushes the right end of the first push block 53 to move upward, so that the side wall edge of the first sleeve hole 531 pushes the second branch pipe 2 to slide upward.

[0031] In this embodiment, when using the telescopic support rod, the base 3 is first supported on the ground or tabletop below the cabinet to be installed, and the top seat 4 is placed against the bottom of the cabinet. When the height of the cabinet installation position is incorrect, the first handle 521 can be pushed to the right (i.e., to swing closer to the first branch pipe 1). This causes the first handle 521 to drive the free end of the swing structure 52 to push the right end of the first push block 53 upward, which in turn pushes the side wall edge of the first sleeve hole 531 to slide the second branch pipe 2 upward. Thus, the second branch pipe 2 drives the top seat 4 to push the cabinet upward, thereby adjusting the cabinet installation position. Essentially, by pushing the first handle 521 to the right, the cabinet can be directly moved upward to adjust the installation position, making the position adjustment operation convenient. When the first handle 521 is released, the first spring 54 will push the first push block 53 and the first handle 521 back to their original positions, allowing for repeated rightward pushing of the first handle 521 to adjust the continuous rise of the second branch pipe 2.

[0032] The downward sliding restriction of the second branch pipe 2 by the locking mechanism ensures the stability of the telescopic support rod for the hanging cabinet. When the restriction of the locking mechanism on the second branch pipe 2 is released, the second branch pipe 2 can be easily pushed downward.

[0033] Example 2

[0034] This embodiment is a further improvement on the steplessly adjustable telescopic support rod structure of Embodiment 1. The improvement lies in that, as... Figure 4 , 5As shown, the locking mechanism includes a first locking block 551, a second spring 552, and a pushing assembly. The first locking block 551 has a limiting hole 5510, the width of which is greater than the width of the second branch pipe 2. The first locking block 551 is fitted onto the outside of the second branch pipe 2 through its limiting hole 5510. The second spring 552 is fitted onto the outside of the second branch pipe 2. The second spring 552 pushes the first locking block 551 into an inclined state, causing the side wall edge of the limiting hole 5510 to abut against the outside of the second branch pipe 2. At this time, the second branch pipe 2 cannot slide downwards but can only slide upwards under the action of the side wall edge of the limiting hole 5510 against its outside wall, thereby realizing the structural function of the locking mechanism to restrict the downward sliding of the second branch pipe 2. When the operating push component pushes the first locking block 551 to reduce its tilt angle, the opposing force between the side wall edge of the limiting hole 5510 and the outer side of the second branch pipe 2 is reduced, thus reducing the friction between the two. This releases the locking mechanism from restricting the second branch pipe 2, allowing the second branch pipe 2 to slide downward easily, thereby achieving the rapid retraction function of the telescopic support rod.

[0035] Specifically, the aforementioned pushing assembly includes a rotating block 553 disposed within the outer casing 51 and a second handle 554 disposed on the front side of the front panel 502. The second handle 554 is connected to the rotating block 553 via a first rotating rod 555. Rotating the second handle 554 will cause the rotating block 553 to rotate simultaneously via the first rotating rod 555. The right inner wall of the aforementioned middle casing 501 is provided with a support block 512. The right end of the first locking block 551 abuts against the upper part of the support block 512. The left end of the first locking block 551 is lower than the right end of the first locking block 551 and is in an inclined state. A vertical block 5511 is provided on the upper part of the left end of the first locking block 551. The vertical block 5511 has an insertion hole 5512. The free end of the rotating block 553 is inserted into the insertion hole 5512 of the vertical block 5511.

[0036] In this embodiment, the telescopic support rod can be used by pushing the second handle 554 upwards, causing the rotating block 553 to move the vertical block 5511 and the left end of the first locking block 551 upwards. This reduces the tilt angle of the first locking block 551, thereby reducing the opposing force between the side wall edge of the limiting hole 5510 and the outer side of the second branch tube 2. This releases the locking mechanism's restriction on the second branch tube 2, making unlocking convenient. After releasing the hand, the second spring 552 will automatically push the first locking block 551 and the second handle 554 back to their original positions, restoring the restriction of the limiting hole 5510 of the first locking block 551 on the second branch tube 2, preventing the second branch tube 2 from sliding downwards, and facilitating the unlocking operation by rotating the second handle 554 again.

[0037] As an improvement to this embodiment, the locking mechanism further includes a second locking block 556 disposed within the housing 51. The second locking block 556 also has a limiting hole 5510. The second locking block 556 is fitted onto the outside of the second branch pipe 2 through its limiting hole 5510. The second locking block 556 is stacked on top of the first locking block 551. The upper end of the second spring 552 abuts against the lower side of the support plate 511, and the lower end of the second spring 552 abuts against the upper side of the second locking block 556. Without external force, the second spring 552 will push the second locking block 556 and the first locking block 551 to be in an inclined state at the same time, so that the sidewall edge of the limiting hole 5510 of the two locking blocks abuts against the outside of the second branch pipe 2. This can better restrict the downward sliding of the second branch pipe 2 and make the structure more stable.

[0038] Example 3

[0039] This embodiment is a further improvement on the steplessly adjustable telescopic support rod structure of Embodiment 2. The improvement lies in that, for example... Figure 4 , 5 As shown, the aforementioned pushing mechanism also includes a second push block 56 disposed within the housing 51, a push seat 57 rotatably connected to the second push block 56, and a third spring 58 fitted onto the outside of the second branch pipe corresponding to the lower side of the second push block 56. The second push block 56 has a second sleeve hole 561, the width of which is greater than the width of the second branch pipe 2. The second push block 56 is fitted onto the outside of the second branch pipe 2 through the second sleeve hole 561, corresponding to the lower side of the support block 512. The third spring 58 will push the right end of the second push block 56 against the support block 512. When the support blocks 512 are pushed to the left (i.e., to swing away from the first branch pipe 1), the swing structure 52 will simultaneously push the push seat 57 to rotate upward, thereby pushing the first locking block 551 and the second locking block 556 to reduce their tilt angle, thus releasing the restriction of the edge of the limiting hole 5510 on the downward sliding of the second branch pipe 2. At the same time, the push seat 57 will also drive the left end of the second push block 56 to move downward, so that the side wall edge of the second sleeve hole 561 of the second push block 56 pushes the second branch pipe 2 to slide downward.

[0040] Specifically, the aforementioned push base 57 is provided with a first protrusion 571 and a second protrusion 572. The first protrusion 571 is located on the top of the free end of the push base 57, and the second protrusion 572 is located on the front and rear sides of the free end of the push base 57. The upper end of the first protrusion 571 abuts against the lower left end of the first locking block 551, and the second protrusion 572 is located on the left side of the swing structure 52. The aforementioned second push block 56 is provided with two connecting lugs 562 facing each other. The push base 57 is rotatably connected to the two connecting lugs 562 through the second rotating rod 59, so that the push base 57 can rotate around the second rotating rod 59. When the first handle 521 is pushed to the left, the swing structure 52 will push the second protrusion 572 to drive the push seat 57 to rotate upward. At the same time, the first protrusion 571 will push the left end of the first locking block 551 and the second locking block 556 to move upward, thereby reducing the tilt angle of the two locking blocks and releasing the restriction on the downward movement of the second branch pipe 2. Meanwhile, the push seat 57 will drive the two connecting lugs 562 and the left end of the second push block 56 to move downward through the second rotating rod 59, thereby causing the left end of the second push block 56 to move downward. This will cause the side wall edge of the second sleeve hole 561 to push the second branch pipe 2 to slide downward. The top seat 4 will also move downward to make room, thereby allowing the wall cabinet to be moved down to adjust the installation position of the wall cabinet. When the first handle 521 is released, the third spring 58 will push the second push block 56 to reset. At the same time, the push seat 57, the first handle 521 and the two locking blocks will also reset, so as to facilitate the continuous downward adjustment of the second branch tube 2 by pushing the first handle 521 to the left multiple times. The reset of the two locking blocks will continue to restrict the downward sliding of the second branch tube 2.

[0041] When using the telescopic support rod in this embodiment, first support the base 3 on the ground or tabletop below the cabinet to be installed, and then place the top seat 4 against the bottom of the cabinet. When the height of the cabinet installation position is incorrect, push the first handle 521 to swing to the left, so that the side wall edge of the second hole 561 of the second push block 56 pushes the second branch pipe 2 downward, and the top seat 4 also moves down to make room, so that the cabinet can be moved down slightly to adjust the installation position of the cabinet; or after the cabinet is installed, the support rod needs to be removed, first push the first handle 521 to swing to the left, so that the top seat 4 is removed from under the cabinet, and the support rod can be easily removed from under the cabinet.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A continuously adjustable telescopic support rod, characterized in that: It includes a first branch pipe (1), a second branch pipe (2) that passes through the first branch pipe (1) and can slide axially relative to the first branch pipe (1), and a pushing mechanism (5) for pushing the second branch pipe (2) to slide axially relative to the first branch pipe (1); The pushing mechanism (5) includes a housing (51), a swing structure (52) rotatably connected inside the housing (51), a first handle (521) connected to the swing structure (52), a first push block (53), a first spring (54) and a locking mechanism for restricting the downward sliding of the second branch pipe (2) inside the housing (51). The housing (51) is fixed at the upper end of the first branch pipe (1), and the second branch pipe (2) passes through the housing (51) and can slide relative to the housing (51). The first push block (53) has a first sleeve hole (531), the width of the first sleeve hole (531) is greater than the width of the second branch pipe (2), and the first push block (53) is fitted on the outside of the second branch pipe (2) through the first sleeve hole (531). The first spring (54) is fitted outside the second branch pipe (2) and located on the upper side of the first push block (53). The first handle (521) extends out of the outer shell (51). When the first handle (521) is pushed to swing towards the first branch pipe (1), the swing structure (52) will simultaneously push one end of the first push block (53) to move upward, so that the side wall edge of the first sleeve hole (531) pushes the second branch pipe (2) to slide upward.

2. The infinitely adjustable telescopic support rod according to claim 1, characterized in that: One end of the first push block (53) abuts against the inner side of the outer shell (51), and a support plate (511) is provided below the first push block (53), with the support plate (511) abutting against the inner side of the outer shell (51).

3. The infinitely adjustable telescopic support rod according to claim 2, characterized in that: When the first handle (521) is pushed to swing towards the first branch pipe (1), the free end of the swing structure (52) abuts against the first push block (53) at one end of the outer shell (51).

4. The infinitely adjustable telescopic support rod according to claim 3, characterized in that: The locking mechanism includes a first locking block (551), a second spring (552), and a pushing assembly. The first locking block (551) has a limiting hole (5510), the width of which is greater than the width of the second branch pipe (2). The first locking block (551) is fitted onto the outside of the second branch pipe (2) through its limiting hole (5510). The second spring (552) is fitted onto the outside of the second branch pipe (2). The second spring (552) pushes the first locking block (551) to an inclined state, causing the side wall edge of the limiting hole (5510) to abut against the outside of the second branch pipe (2). The operation of the pushing assembly can push the first locking block (551) to reduce its inclination angle, thereby reducing the abutting force between the side wall edge of the limiting hole (5510) and the outside of the second branch pipe (2).

5. The infinitely adjustable telescopic support rod according to claim 4, characterized in that: The pushing assembly includes a rotating block (553) located inside the housing (51) and a second handle (554) located outside the housing (51). The second handle (554) is connected to the rotating block (553) via a first rotating rod (555). Rotating the second handle (554) will cause the rotating block (553) to push the first locking block (551) so that its tilt angle becomes smaller.

6. The infinitely adjustable telescopic support rod according to claim 5, characterized in that: The first locking block (551) has a vertical block (5511) at the end with a smaller height, and the end of the first locking block (551) at a larger height abuts against the inner side of the outer shell (51). The free end of the rotating block (553) is connected to the vertical block (5511).

7. The infinitely adjustable telescopic support rod according to claim 4, characterized in that: The locking mechanism also includes a second locking block (556) located inside the housing (51). The second locking block (556) also has a limiting hole (5510). The second locking block (556) is fitted onto the outside of the second branch pipe (2) through its limiting hole (5510). The second locking block (556) is stacked on top of the first locking block (551). The upper end of the second spring (552) abuts against the lower side of the support plate (511), and the lower end of the second spring (552) abuts against the upper side of the second locking block (556).

8. The infinitely adjustable telescopic support rod according to claim 4, characterized in that: The inner wall of the outer casing (51) is provided with a support block (512). The end of the first locking block (551) with the larger height abuts against the support block (512) on the inner side of the outer casing (51). The pushing mechanism (5) also includes a second push block (56) provided inside the outer casing (51), a push seat (57) rotatably connected to the second push block (56), and a third spring (58) fitted on the outer side of the second branch pipe (2) corresponding to the lower side of the second push block (56). The second push block (56) has a second sleeve hole (561). The width of the second sleeve hole (561) is greater than the width of the second branch pipe (2). The block (56) is fitted onto the second branch pipe (2) through the second sleeve hole (561) at the position below the support block (512) on the outside. The third spring (58) will push the end of the second push block (56) to abut against the bottom of the support block (512). When the first handle (521) is pushed to swing away from the first branch pipe (1), the swing structure (52) will push the push seat (57) to rotate upward and push the first locking block (551) to reduce its tilt angle. At the same time, the push seat (57) will also drive the second push block (56) to move downward, so that the side wall edge of the second sleeve hole (561) pushes the second branch pipe (2) to slide downward.

9. The infinitely adjustable telescopic support rod according to claim 8, characterized in that: The push base (57) is provided with a first protrusion (571) and a second protrusion (572). The first protrusion (571) is located on the top of the free end of the push base (57), and the second protrusion (572) is located on the side of the free end of the push base (57). The upper end of the first protrusion (571) abuts against the lower side of the first locking block (551). The swing structure (52) pushes the push base (57) to rotate upward through the second protrusion (572).

10. The infinitely adjustable telescopic support rod according to claim 8, characterized in that: The second push block (56) has two connecting lugs (562) facing each other, and the push seat (57) is rotatably connected to the two connecting lugs (562) through the second rotating rod (59).

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