Support device and telescopic assembly

Abstract

The utility model relates to a supporting device and telescopic subassembly, supporting device is applied to telescopic subassembly, and telescopic subassembly includes fixed part and the slidingly arranged in fixed part and can from the one side of fixed part of sliding part, supporting device includes fixed seat, guide plate, support subassembly and transmission assembly, and the one end of fixed seat is set up in the sliding part of fixed part, and fixed seat rotationally is provided with the pivot, and the fixed part of telescopic subassembly is set up in guide plate, and guide plate is provided with the guide slide groove, and support subassembly is set up in the pivot and can rotate with the pivot, and support subassembly has the retracted state and the support state, and the first end of transmission assembly is set up in the pivot, and the second end of transmission assembly is slidingly set up in the guide slide groove, when the sliding part of telescopic subassembly is stretched out, by the cooperation of transmission assembly and guide slide groove, can drive support subassembly by the retracted state and switches to the support state. The utility model can solve the technical problem that the guide rail for providing the guide of cantilever is extremely easy to bend and deform.

Description

Technical Field

[0001] This utility model relates to the field of cantilever technology, and in particular to a support device and telescopic component. Background Technology

[0002] A cantilever is a structural member that is fixed and constrained at one end, while the other end can extend and retract freely. Its core characteristic is that it relies on the bending resistance of the fixed end to bear external loads, thereby achieving the outward cantilever of the structure. The cantilever, as part of the telescopic assembly, is slidably mounted on a base plate via guide rails and can extend from one side of the base plate. However, in traditional cantilever systems, the guide rails that guide the cantilever are prone to bending and deformation during use.

[0003] Therefore, it is necessary to provide a new support device and telescopic component to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a support device and telescopic component, which aims to solve the technical problem that the guide rail that guides the cantilever is prone to bending and deformation during use.

[0005] To achieve the above objectives, this utility model proposes a support device applied to a telescopic assembly. The telescopic assembly includes a fixing member and a sliding member. The sliding member is slidably disposed on the fixing member and can extend from one side of the fixing member. The support device includes: A fixing seat is provided at one end of the sliding member that can extend out of the fixing member, and the fixing seat is rotatably provided with a rotating shaft; A guide plate is disposed on the fixing member, and the guide plate is provided with a guide groove; A support assembly is disposed on the pivot and can rotate with the pivot. The support assembly has a retracted state and a supported state. A transmission assembly, wherein a first end of the transmission assembly is disposed on a rotating shaft, and a second end of the transmission assembly is accommodated in the guide groove and slides along the guide groove; When the sliding member of the telescopic component extends, the second end of the transmission component is accommodated in the guide groove and slides along the guide groove. The second end of the transmission component drives the support component to rotate through the rotating shaft, so that the support component switches from the retracted state to the supported state.

[0006] In one embodiment, the guide groove includes a first groove, a second groove, and a third groove connected in sequence. The first groove and the third groove are spaced apart along the height direction of the fixed base. The distance between the first groove and the top of the fixed base is greater than the distance between the third groove and the top of the fixed base. When the sliding member of the telescopic component extends, the second end of the transmission component can slide from the third slide groove through the second slide groove to the first slide groove, and drive the support component to rotate through the rotating shaft, so that the support component switches from the retracted state to the supported state.

[0007] In one embodiment, the second groove is an inclined groove or an arc-shaped groove.

[0008] In one embodiment, the transmission assembly includes a transmission plate and a pulley. A first end of the transmission plate is disposed on the rotating shaft, and the pulley is rotatably disposed on a second end of the transmission plate. The pulley is housed in the guide groove and can slide along the guide groove.

[0009] In one embodiment, the support assembly includes a support unit and casters, the support unit being fixedly mounted on the pivot shaft, and the casters being rotatably mounted on the support unit.

[0010] In one embodiment, the support unit includes a rotating seat, a mounting seat, and an adjusting seat. The rotating seat is fixedly mounted on the rotating shaft, the adjusting seat is mounted on the rotating seat, the mounting seat is mounted on the bottom of the adjusting seat, an elastic element is provided between the mounting seat and the adjusting seat, and the caster is rotatably mounted on the mounting seat.

[0011] In one embodiment, the fixing base is provided with a receiving cavity and a first through hole communicating with the receiving cavity, the support assembly is provided with a locking hole, and the support device further includes a locking assembly, the locking assembly including a plug and a pin, the plug being slidably disposed in the receiving cavity along the height direction of the fixing base, and the pin being disposed in the plug; the plug is provided with a second through hole communicating with the first through hole; When the support assembly is in the supported state, the pin is inserted into the locking hole to lock the position of the support assembly; The support device further includes a top rod, which is disposed on the fixing member of the telescopic assembly; When the pin is inserted into the lock hole, the push rod can pass through the first through hole and the second through hole in sequence, and drive the plug block to slide so that the pin disengages from the lock hole and releases the position lock of the support assembly.

[0012] In one embodiment, a pressure plate is provided at the top of the receiving cavity, and an elastic unit is provided between the pressure plate and the insertion block; the elastic unit is used to drive the insertion block to slide so that the pin moves toward the support assembly.

[0013] In one embodiment, the locking assembly further includes a roller rotatably disposed at the top of the second through hole; one end of the push rod is provided with an abutment surface, the abutment surface being inclined from the side closer to the support assembly to the side farther away from the support assembly along the insertion direction of the push rod; When the pin is inserted into the lock hole, the push rod can pass through the first through hole and the second through hole, and drive the plug block to slide through the abutment surface and the roller, so that the pin disengages from the lock hole and releases the position lock of the support assembly.

[0014] In addition, this utility model also proposes a telescopic component, comprising: Fasteners; A sliding member, which is slidably disposed on the fixing member and can extend from one side of the fixing member; In the support device described above, the fixed seat is disposed on the side of the sliding member that can extend out of the fixed member, and the guide plate is disposed on the fixed member.

[0015] The supporting device of this utility model is applied to a telescopic assembly. The telescopic assembly includes a fixed member and a sliding member. The sliding member is slidably disposed on the fixed member and can extend from one side of the fixed member. The supporting device includes a fixed seat, a guide plate, a supporting assembly, and a transmission assembly. The fixed seat is disposed at the end of the sliding member that can extend out of the fixed member. The fixed seat is rotatably provided with a rotating shaft. The guide plate is disposed on the fixed member and is provided with a guide groove. The supporting assembly is disposed on the rotating shaft and can rotate with the rotating shaft. The supporting assembly has a retracted state and a supported state. The first end of the transmission assembly is disposed on the rotating shaft, and the second end of the transmission assembly can be accommodated in the guide groove and slide along the guide groove. When the sliding member of the telescopic assembly extends, the second end of the transmission assembly is accommodated in the guide groove and slides along the guide groove. The second end of the transmission assembly drives the supporting assembly to rotate through the rotating shaft, so that the supporting assembly switches from the retracted state to the supported state. This support device, through the cooperation of the transmission component and the guide groove, drives the support component to switch from a retracted state to a supported state when the sliding member of the telescopic assembly extends. This supports the end of the extended member that extends beyond the fixed member, distributing the force applied by the load and reducing the local stress on the guide rail. Therefore, it effectively reduces the risk of the guide rail bending and deforming due to excessive load. In a specific embodiment, the sliding member can be the cantilever of the telescopic assembly, and the fixed member can be the base plate of the telescopic assembly, with the base plate fixing one end of the cantilever to the instrument body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the support device (excluding the top rod and guide plate) in one embodiment of the present invention; Figure 2 A cross-sectional view of a support device (excluding the top rod and guide plate) in one embodiment of the present invention; Figure 3 A schematic diagram of the support component in a supporting state in one embodiment of the present invention; Figure 4 A schematic diagram of the support component in a retracted state in one embodiment of the present invention; Figure 5 A schematic diagram showing the connection between the support component and the transmission component in one embodiment of this utility model; Figure 6 A schematic diagram of the locking component in one embodiment of this utility model.

[0018] Explanation of icon numbers: 100. Fixed base; 110. Rotating shaft; 120. Receiving cavity; 121. Pressure plate; 130. First through hole; 200. Guide plate; 210. Guide groove; 211. First groove; 2111. Opening; 212. Second groove; 213. Third groove; 300. Support assembly; 310. Support unit; 311. Rotating base; 3111. Locking hole; 312. Mounting base; 313. Adjusting base; 314. Elastic element; 320. Caster; 400. Transmission assembly; 410. Transmission plate; 420. Pulley; 500. Top rod; 510. Abutment surface; 600. Locking assembly; 610. Insert block; 611. Second through hole; 612. Elastic unit; 620. Pin; 630. Roller.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0023] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] A cantilever is a structural member that is fixed and constrained at one end, while the other end can extend and retract freely. Its core characteristic is that it relies on the bending resistance of the fixed end to bear external loads, thus achieving outward cantilevering of the structure. In this case, the cantilever, as part of the telescopic assembly, is slidably mounted on a base plate via guide rails and can extend from one side of the base plate. The base plate fixes one end of the cantilever to the instrument body. During actual production and research and development, researchers discovered that when the load is too large, it generates a huge torque at the extended end of the cantilever, which is concentrated on the guide rail. This causes the local stress on the guide rail to far exceed the material's yield strength, resulting in bending deformation of the guide rail.

[0025] This utility model proposes a support device and telescopic component, aiming to solve the technical problem that the guide rail that provides guidance for the cantilever is prone to bending and deformation during use.

[0026] Please see Figures 1 to 6In one embodiment of this utility model, the support device is applied to a telescopic assembly. The telescopic assembly includes a fixed member and a sliding member. The sliding member is slidably disposed on the fixed member and can extend from one side of the fixed member. The support device includes a fixed base 100, a guide plate 200, a support assembly 300, and a transmission assembly 400. The fixed base 100 is disposed at the end of the sliding member that can extend out of the fixed member. The fixed base 100 is rotatably provided with a rotating shaft 110. The guide plate 200 is disposed on the fixed member and is provided with a guide groove 210. The support assembly 300 is disposed on the rotating shaft 110. It can rotate together with the rotating shaft 110. The support assembly 300 has a retracted state and a supported state. The first end of the transmission assembly 400 is disposed on the rotating shaft 110, and the second end of the transmission assembly 400 can be accommodated in the guide groove 210 and slide along the guide groove 210. When the sliding member of the telescopic assembly extends, the second end of the transmission assembly 400 is accommodated in the guide groove 210 and slides along the guide groove 210. The second end of the transmission assembly 400 drives the support assembly 300 to rotate through the rotating shaft 110, so that the support assembly 300 switches from the retracted state to the supported state. In this embodiment, as... Figure 3 and Figure 4 As shown, when the slider of the telescopic component extends, the support component 300 switches from the retracted state to the support state; when the slider of the telescopic component retracts, the support component 300 switches from the support state to the retracted state.

[0027] The technical solution of this utility model, when the sliding member of the telescopic component extends, uses a cooperating transmission component 400 and guide groove 210 to drive the support component 300 from a retracted state to a supported state, thereby supporting the end of the sliding member extending from the fixed member and reducing the risk of bending deformation of the guide rail. In this embodiment, the following content is based on... Figure 3From a specific perspective, the guide plate 200 is mounted on the fixed member and provides guidance for the transmission assembly 400. The support assembly 300 supports the extended end of the slider when it extends, reducing the risk of bending deformation of the guide rail due to excessive load. The transmission assembly 400 drives the support assembly 300 to rotate clockwise via the rotating shaft 110 when the slider extends, switching the support assembly 300 to the supported state; simultaneously, the transmission assembly 400 also drives the support assembly 300 to rotate counterclockwise via the rotating shaft 110 when the slider retracts, switching the support assembly 300 to the retracted state. Specifically, since the fixed base 100 is mounted on the slider, the guide plate 200 is mounted on the fixed member, and the first end of the transmission assembly 400 is rotatably mounted on the fixed base 100 via the rotating shaft 110, the second end of the transmission assembly 400 is slidably mounted on the guide groove 210 of the guide plate 200. Therefore, when the sliding member of the telescopic component extends, the second end of the transmission component 400 is accommodated in the guide groove 210 and slides along the guide groove 210. Simultaneously, it drives the support component 300 mounted on the rotating shaft 110 to rotate, switching the support component 300 from a retracted state to a supported state. At this time, the support component 300 can support the end of the extending member that extends beyond the fixed member, sharing the force applied by the load and reducing the local stress on the guide rail. This effectively reduces the risk of the guide rail bending and deforming due to excessive load. This support device is applied in the fields of cantilever and pull-out structures (such as drawers).

[0028] It should be noted that the technical solution of this embodiment, through the cooperation of the transmission component 400 and the guide groove 210 of the guide plate 200, can automatically retract and extend the support component 300 when the sliding member of the telescopic component extends and retracts. This eliminates the need for additional driving components, greatly simplifying the structure of the support component 300 and reducing its manufacturing difficulty and cost. Simultaneously, when the support component 300 is extended and retracted, it does not interfere with or collide with other components, significantly reducing the risk of damage and extending its service life. In a specific embodiment, to ensure that the sliding member can extend a sufficient length within its stroke and to reduce the volume of the support device, an opening 2111 can be provided at the end of the guide groove 210, allowing the second end of the transmission component 400 to slide away from the guide groove 210 when the sliding member extends. In this embodiment, the rotating shaft 110 is rotatably mounted on the fixed base 100 via a bearing. To limit the rotation angle of the support assembly 300, the fixed base 100 is provided with a limit block. The limit block can abut against the support assembly 300 when the support assembly 300 is switched to the support state, thereby limiting the rotation angle of the support assembly 300. To fix the support assembly 300 to the rotating shaft 110, a set screw that can abut against the rotating shaft 110 can be installed on the rotating seat 311 of the support assembly 300. The included angle between the transmission assembly 400 and the support assembly 300 is 90°.

[0029] Please see Figure 3 In one embodiment of this utility model, the guide groove 210 includes a first groove 211, a second groove 212, and a third groove 213 connected in sequence. The first groove 211 and the third groove 213 are spaced apart along the height direction of the fixed base 100. The distance between the first groove 211 and the top of the fixed base 100 is greater than the distance between the third groove 213 and the top of the fixed base 100. When the sliding member of the telescopic assembly extends, the second end of the transmission assembly 400 slides from the third groove 213 through the second groove 212 to the first groove 211, and drives the support assembly 300 to rotate through the rotating shaft 110, so that the support assembly 300 switches from the retracted state to the supported state. When the sliding member of the telescopic assembly retracts, the second end of the transmission assembly 400 can slide from the first groove 211 through the second groove 212 to the third groove 213. In this embodiment, the guide groove 210 provides guidance for the second end of the transmission component 400, which can improve the stability of the support component 300 during retraction and extension, and reduce the risk of damage to the support device due to excessive retraction and extension speed of the support component 300. In a specific embodiment, the second groove 212 is an inclined groove or an arc-shaped groove. Specifically, when the sliding member of the telescopic component extends, the second end of the transmission component 400 moves along the inclined or arc-shaped second groove 212, and the transmission component 400 drives the rotating shaft 110 to move clockwise, thereby driving the support component 300 to move clockwise, so as to switch the support component 300 from the retracted state to the supported state. By designing the second groove 212 as an inclined groove or an arc-shaped groove, the rotation of the transmission component 400 can be made smoother, thereby improving the stability of the support component 300 during retraction and extension. In a specific embodiment, the opening 2111 is provided on the side of the first groove 211 opposite to the second groove 212.

[0030] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the transmission assembly 400 includes a transmission plate 410 and a pulley 420. A first end of the transmission plate 410 is disposed on a rotating shaft 110, and a pulley 420 is rotatably disposed on a second end of the transmission plate 410. The pulley 420 is housed in a guide groove 210 and can slide along the guide groove 210. In this embodiment, by housing the pulley 420 in the guide groove 210, the second end of the transmission assembly 400 is slidably disposed in the guide groove 210, which can reduce frictional loss and extend the service life of the support device.

[0031] Please see Figure 2 and Figure 5In one embodiment of this utility model, the support assembly 300 includes a support unit 310 and a caster 320. The support unit 310 is fixedly mounted on the pivot 110, and the caster 320 is rotatably mounted on the support unit 310. In this embodiment, when the support assembly 300 supports the sliding member and the sliding member continues to extend, the rotatable caster 320 rolls in contact with the support surface or the ground, which reduces friction and facilitates the extension of the sliding member.

[0032] In one embodiment of this utility model, the support unit 310 includes a rotating seat 311, a mounting seat 312, and an adjusting seat 313. The rotating seat 311 is fixedly mounted on the rotating shaft 110, the adjusting seat 313 is mounted on the rotating seat 311, the mounting seat 312 is mounted on the bottom of the adjusting seat 313, and an elastic element 314 is provided between the mounting seat 312 and the adjusting seat 313. The caster 320 is rotatably mounted on the mounting seat 312. In this embodiment, the caster 320 is mounted on the mounting seat 312, and the elastic element 314 is provided between the mounting seat 312 and the adjusting seat 313, which can play a role in buffering and shock absorption, reducing the shaking caused by the caster 320 sliding on the support surface or the ground. In one specific embodiment, the adjusting seat 313 is provided with a strip-shaped groove extending along the axial direction of the rotating seat 311. The support unit 310 also includes a fixing bolt, which passes through the strip-shaped groove and is threadedly connected to the rotating seat 311. By providing a strip-shaped groove on the adjusting seat 313, the installation height of the adjusting seat 313 can be adjusted according to requirements, so that the support device can adapt to various different installation environments. The elastic element 314 is a rectangular spring. To install the elastic element 314, the adjusting seat 313 has a mounting hole, and the elastic element 314 is disposed in the mounting hole and abuts against the mounting seat 312. In a more specific embodiment, the gap width between the mounting seat 312 and the rotating seat 311 is 2mm; correspondingly, the gap width between the adjusting seat 313 and the mounting seat 312 is also 2mm.

[0033] Please see Figure 2 , Figure 4 and Figure 6In one embodiment of this utility model, the support device further includes a top rod 500 and a locking component 600. The fixed base 100 is provided with a receiving cavity 120 and a first through hole 130 communicating with the receiving cavity 120, and the support component 300 is provided with a locking hole 3111. The locking assembly 600 includes a plug 610 and a pin 620. The plug 610 is slidably disposed in the receiving cavity 120 along the height direction of the fixing base 100, and the pin 620 is disposed in the plug 610. The plug 610 is provided with a second through hole 611 communicating with the first through hole 130, and the push rod 500 is disposed in the fixing member of the telescopic assembly. When the support assembly 300 is in the supported state, the pin 620 is inserted into the locking hole 3111 to lock the position of the support assembly 300. When the pin 620 is inserted into the locking hole 3111, the push rod 500 can pass through the first through hole 130 and the second through hole 611 in sequence, and drive the plug 610 to slide, so that the pin 620 disengages from the locking hole 3111 and releases the position lock of the support assembly 300.

[0034] In this embodiment, the pin 620 is disposed at the bottom of the insert block 610 and integrally formed with the insert block 610. The locking component 600 is used to lock the position of the support component 300 when the support component 300 is in the supported state to ensure stable support of the support device. The push rod 500 is used to release the position lock of the support component 300 when the support component 300 needs to be switched to the retractable position. Specifically, when the sliding member of the telescopic component extends, the support component 300 switches to the support state, and the top rod 500 disengages from the second through hole 611, the insert block 610 moves downward under its own weight, driving the pin 620 downward so that the pin 620 is inserted into the lock hole 3111, locking the position of the support component 300. When the sliding member of the telescopic component retracts, the top rod 500 passes through the first through hole 130 and the second through hole 611 in sequence before the pulley 420 enters the guide groove 210, thereby driving the insert block 610 upward to disengage the pin 620 from the lock hole 3111, releasing the position lock of the support component 300. In a specific embodiment, to facilitate the insertion of the pin 620 into the lock hole 3111, the bottom of the pin 620 can be designed to be tapered, and the lock hole 3111 can be designed as a tapered hole. To ensure smooth sliding of the insert 610 along the height direction of the fixed base 100, the pin 620 is slidably disposed in the receiving cavity 120 via a bushing; in addition, the bushing is made of brass material, which has good wear resistance, self-lubricating properties and a small sliding model coefficient.

[0035] In one embodiment of this utility model, a pressure plate 121 is provided on the top of the receiving cavity 120, and an elastic unit 612 is provided between the pressure plate 121 and the insert block 610. The elastic unit 612 is used to drive the insert block 610 to slide, so that the pin 620 moves toward the support component 300. In this embodiment, the elastic unit 612 is used to drive the pin 620 to automatically insert into the lock hole 3111 to ensure the reliability of the locking component 600 when locking the position of the support component 300. Specifically, when the support component 300 switches to the support state and the top rod 500 disengages from the second through hole 611, the elastic unit 612 can provide a rebound force to drive the insert block 610 to move downward, thereby driving the pin 620 to move downward and insert into the lock hole 3111, to ensure the reliability of the locking component 600 when locking the position of the support component 300. In a specific embodiment, the elastic unit 612 can be a spring.

[0036] Please see Figure 2 , Figure 3 and Figure 6 In one embodiment of this utility model, the locking component 600 further includes a roller 630, which is rotatably disposed on the top of the second through hole 611. One end of the push rod 500 is provided with an abutment surface 510, which is inclined from the side closer to the support component 300 to the side farther away from the support component 300 along the insertion direction of the push rod 500. When the pin 620 is inserted into the lock hole 3111, the push rod 500 can pass through the first through hole 130 and the second through hole 611, and drive the insertion block 610 to slide through the abutment surface 510 and the roller 630, so that the pin 620 disengages from the lock hole 3111 and releases the position lock of the support component 300. In this embodiment, when the push rod 500 passes through the second through hole 611, the cooperation between the roller 630 and the abutment surface 510 drives the insertion block 610 to move upward, thereby driving the pin 620 to disengage from the lock hole 3111, which can reduce frictional wear and extend the service life of the support device.

[0037] This utility model also proposes a telescopic assembly, which includes a support device. The specific structure of the support device is as described in the above embodiments. Since this telescopic assembly adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The telescopic assembly also includes a fixing member and a sliding member. The sliding member is slidably disposed on the fixing member and can extend from one side of the fixing member. A fixing seat 100 is disposed on the sliding member, and a guide plate 200 is disposed on the fixing member. It should be noted that the telescopic assembly can be a drawer-like structure. In a specific embodiment, the telescopic assembly includes a base plate and a cantilever. The cantilever is slidably disposed on the base plate via a guide rail and can extend from one side of the base plate. In this case, the aforementioned sliding member is equivalent to the cantilever of the telescopic assembly, and the aforementioned fixing member is equivalent to the base plate of the telescopic assembly. The base plate fixes one end of the cantilever to the instrument body.

[0038] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A support device applied to a telescopic assembly, the telescopic assembly comprising a fixing member and a sliding member, the sliding member being slidably disposed on the fixing member and capable of extending from one side of the fixing member, characterized in that, The support device includes: A fixing seat is provided at one end of the sliding member that can extend out of the fixing member, and the fixing seat is rotatably provided with a rotating shaft; A guide plate is disposed on the fixing member, and the guide plate is provided with a guide groove; A support assembly is disposed on the pivot and can rotate with the pivot. The support assembly has a retracted state and a supported state. A transmission assembly, wherein a first end of the transmission assembly is disposed on a rotating shaft, and a second end of the transmission assembly is accommodated in the guide groove and slides along the guide groove; When the sliding member of the telescopic component extends, the second end of the transmission component is accommodated in the guide groove and slides along the guide groove. The second end of the transmission component drives the support component to rotate through the rotating shaft, so that the support component switches from the retracted state to the supported state.

2. The support device as described in claim 1, characterized in that, The guide chute includes a first chute, a second chute, and a third chute connected in sequence. The first chute and the third chute are spaced apart along the height direction of the fixed base. The distance between the first chute and the top of the fixed base is greater than the distance between the third chute and the top of the fixed base. When the sliding member of the telescopic component extends, the second end of the transmission component slides from the third slide groove through the second slide groove to the first slide groove, and drives the support component to rotate through the rotating shaft, so that the support component switches from the retracted state to the supported state.

3. The support device as described in claim 2, characterized in that, The second groove is an inclined groove or an arc-shaped groove.

4. The support device as described in claim 1, characterized in that, The transmission assembly includes a transmission plate and a pulley. The first end of the transmission plate is disposed on the rotating shaft, and the second end of the transmission plate is rotatably disposed on the pulley. The pulley is housed in the guide groove and can slide along the guide groove.

5. The support device as described in claim 1, characterized in that, The support assembly includes a support unit and casters. The support unit is fixedly mounted on the pivot, and the casters are rotatably mounted on the support unit.

6. The support device as described in claim 5, characterized in that, The support unit includes a rotating seat, a mounting seat, and an adjusting seat. The rotating seat is fixedly mounted on the rotating shaft, the adjusting seat is mounted on the rotating seat, the mounting seat is mounted on the bottom of the adjusting seat, an elastic element is provided between the mounting seat and the adjusting seat, and the caster is rotatably mounted on the mounting seat.

7. The support device as described in any one of claims 1 to 6, characterized in that, The fixed base is provided with a receiving cavity and a first through hole communicating with the receiving cavity. The support assembly is provided with a locking hole. The support device further includes a locking assembly, which includes a plug and a pin. The plug is slidably disposed in the receiving cavity along the height direction of the fixed base, and the pin is disposed in the plug. The plug is provided with a second through hole communicating with the first through hole. When the support assembly is in the supported state, the pin is inserted into the locking hole to lock the position of the support assembly; The support device further includes a top rod, which is disposed on the fixing member of the telescopic assembly; When the pin is inserted into the lock hole, the push rod can pass through the first through hole and the second through hole in sequence, and drive the plug block to slide so that the pin disengages from the lock hole and releases the position lock of the support assembly.

8. The support device as described in claim 7, characterized in that, A pressure plate is provided at the top of the accommodating cavity, and an elastic unit is provided between the pressure plate and the insertion block; the elastic unit is used to drive the insertion block to slide so that the pin moves toward the support assembly.

9. The support device as described in claim 7, characterized in that, The locking assembly further includes a roller, which is rotatably disposed at the top of the second through hole; one end of the push rod is provided with an abutment surface, which is inclined from the side closer to the support assembly to the side farther away from the support assembly along the insertion direction of the push rod; When the pin is inserted into the lock hole, the push rod can pass through the first through hole and the second through hole, and drive the plug block to slide through the abutment surface and the roller, so that the pin disengages from the lock hole and releases the position lock of the support assembly.

10. A telescopic component, characterized in that, include: Fasteners; A sliding member, which is slidably disposed on the fixing member and can extend from one side of the fixing member; The support device according to any one of claims 1 to 9, wherein the fixed base is disposed on the sliding member, and the guide plate is disposed on the fixed member.

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