Pneumatic rod for furniture with overload protection against damage

Abstract

The utility model relates to the technical field of pneumatic rod for furniture, concretely is a kind of pneumatic rod for furniture with overload protection to prevent damage, including telescopic rod, the surface of telescopic rod is equipped with receiving sleeve, the top of telescopic rod is equipped with connecting ring, the surface of connecting ring is provided with protection device, and protection device includes support disc, and the surface of support disc is fixedly connected with connecting ring, and the surface of support disc is placed with guide sleeve, the upper surface of receiving sleeve is equipped with second disc, the lower surface of support disc is equipped with first disc, and protection spring is fixedly connected between first disc and second disc, and protection spring is located inside guide sleeve, and the surface of receiving sleeve is fixedly connected with supporting ring, the upper surface of supporting ring is fixedly connected with rubber block, and rubber block is located below guide sleeve.The utility model, by setting protection device, can effectively protect pneumatic rod, avoid the damaged situation that piston inside pneumatic rod appears, and then improve the service life of pneumatic rod.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic rods for furniture, and in particular to a pneumatic rod for furniture with overload protection to prevent damage. Background Technology

[0002] Pneumatic rods for furniture are components that achieve opening and closing functions through gas pressure regulation. They are widely used in furniture such as cabinets, chairs, and beds, and are mainly used for lift-up doors or lifting structures.

[0003] When workers need to open or close furniture, they install pneumatic rods on the furniture so that the pneumatic rods can push the furniture cabinet doors open or close. However, during use, the existing pneumatic rods may cause the cabinet doors to open or close too wide, causing the cabinet doors to extend the extension rod of the pneumatic rod. This can lead to the piston at the bottom of the extension rod colliding with other parts during use. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where the piston at the bottom of the telescopic rod collides with other components during use, and to propose a pneumatic rod for furniture with overload protection to prevent damage.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a pneumatic rod for furniture with overload protection to prevent damage, comprising a telescopic rod, a storage sleeve installed on the surface of the telescopic rod, a connecting ring installed at the top of the telescopic rod, a protective device provided on the surface of the connecting ring, the protective device comprising a support plate, the support plate being fixedly connected to the surface of the connecting ring, a guide sleeve placed on the surface of the support plate, a second disc installed on the upper surface of the storage sleeve, a first disc installed on the lower surface of the support plate, a protective spring fixedly connected between the first disc and the second disc, the protective spring being located inside the guide sleeve, a support ring fixedly connected to the surface of the storage sleeve, a rubber block fixedly connected to the upper surface of the support ring, the rubber block being located below the guide sleeve, a limiting component provided on the surface of the support plate, the limiting component comprising a rotating bar, the rotating bar being rotatably connected to the surface of the support plate, the rotating bar being placed on the upper surface of the guide sleeve, the rotating bar being able to cooperate with the support plate to achieve the purpose of supporting the rotation of the rotating bar, the first disc and the second disc being fixed to the support plate and the storage sleeve respectively by bolts, the bolts not shown in the figure.

[0006] Preferably, a threaded rod is inserted and connected inside the rotating bar, and the threaded rod is connected to the internal thread of the guide sleeve. The threaded rod can cooperate with the rotating bar to guide the threaded rod.

[0007] Preferably, the lower surface of the support plate is provided with a replacement device, the replacement device including a stabilizing block, the stabilizing block being fixedly connected to the lower surface of the support plate, the stabilizing block being placed on the top of the telescopic rod, and the stabilizing block being able to cooperate with the support plate to achieve the purpose of fixing the stabilizing block.

[0008] Preferably, a threaded block is fixedly connected to the surface of the stabilizing block, and the threaded block is located below the connecting ring. The threaded block can cooperate with the stabilizing block to achieve the purpose of fixing the threaded block.

[0009] Preferably, the surface of the telescopic rod is provided with a threaded hole, and the threaded block is connected to the internal thread of the threaded hole. The threaded hole can cooperate with the telescopic rod to achieve the purpose of storing the threaded block.

[0010] Preferably, an insert block is fixedly connected to the inner side of the guide sleeve. The insert block is inserted into the interior of the first disk. The insert block can cooperate with the guide sleeve and the first disk to restrict the rotation of the guide sleeve.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting a protective device, when the worker needs to protect the pneumatic rod, the worker places the second disc onto the telescopic rod, and the second disc is placed on the storage sleeve. The second disc drives the protective spring, which in turn drives the first disc. The worker installs the connecting ring on the telescopic rod. The first and second discs are fixed to the support plate and the storage sleeve by bolts. The worker places the guide sleeve on the support plate, and the guide sleeve slides on the surface of the storage sleeve. The worker rotates the rotating bar, and when the rotating bar aligns with the groove on the surface of the guide sleeve, the worker inserts the threaded rod into the rotating bar. The threaded rod is connected to the internal thread of the guide sleeve. When the cabinet door is opened, the door moves the connecting ring, which in turn moves the telescopic rod. The telescopic rod slides inside the storage sleeve, driving the support plate and piston. The support plate then moves the first disc, which pulls the protective spring. As the piston approaches one end of the storage sleeve, it stops sliding. When the cabinet door is closed, the telescopic rod retracts, moving the piston to the other end of the storage sleeve. The telescopic rod then moves the guide sleeve, which abuts against the rubber block, stopping the piston's movement. By incorporating this protective device, the pneumatic rod is effectively protected, preventing damage to the piston inside and thus extending its lifespan.

[0012] In this invention, by setting up a replacement device, when the worker needs to replace the protective spring, the worker removes the guide sleeve, the first disc, and the second disc, rotates the connecting ring, the connecting ring drives the stabilizing block, the stabilizing block drives the threaded block, the threaded block retracts and disengages from the threaded hole, the worker takes out the first disc, the first disc drives the protective spring and the second disc, and the worker installs the new protective spring on the pneumatic rod. By setting up the replacement device, the worker can effectively and conveniently replace the protective spring, avoiding the time-consuming situation when replacing the protective spring, thereby improving the efficiency of the worker in replacing the protective spring. Attached Figure Description

[0013] Figure 1 This utility model presents a three-dimensional structural diagram of a pneumatic rod for furniture with overload protection to prevent damage; Figure 2 This utility model provides a schematic diagram of a protective device for a pneumatic rod used in furniture with overload protection to prevent damage. Figure 3 This utility model proposes a pneumatic rod for furniture with overload protection to prevent damage. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This utility model provides a schematic diagram of a replacement device for a pneumatic rod for furniture with overload protection to prevent damage. Figure 5 This utility model proposes a pneumatic rod for furniture with overload protection to prevent damage. Figure 4 Enlarged structural diagram at point B.

[0014] Legend: 1. Telescopic rod; 2. Storage sleeve; 3. Protective device; 31. Guide sleeve; 32. First disc; 33. Protective spring; 34. Second disc; 35. Rubber block; 36. Support ring; 37. Support plate; 38. Rotating bar; 39. Threaded rod; 4. Replacement device; 41. Threaded hole; 42. Threaded block; 43. Stabilizing block; 44. Insert block; 5. Connecting ring. Detailed Implementation

[0015] Please see Figures 1-5 This utility model provides a technical solution: a pneumatic rod for furniture with overload protection to prevent damage, including a telescopic rod 1, a storage sleeve 2 installed on the surface of the telescopic rod 1, and a connecting ring 5 installed at the top of the telescopic rod 1.

[0016] The specific setup and function of its protective device 3 and replacement device 4 will be explained in detail below.

[0017] In this embodiment: a protective device 3 is provided on the surface of the connecting ring 5. The protective device 3 includes a support plate 37, which is fixedly connected to the surface of the connecting ring 5. A guide sleeve 31 is placed on the surface of the support plate 37. A second disc 34 is installed on the upper surface of the storage sleeve 2. A first disc 32 is installed on the lower surface of the support plate 37. A protective spring 33 is fixedly connected between the first disc 32 and the second disc 34. The protective spring 33 is located inside the guide sleeve 31. A support ring 36 is fixedly connected to the surface of the storage sleeve 2. A rubber block 35 is fixedly connected to the upper surface of the support ring 36. The rubber block 35 is located below the guide sleeve 31. A limit component is provided on the surface of the support plate 37.

[0018] Specifically, the limiting component includes a rotating bar 38, which is rotatably connected to the surface of the support plate 37. The rotating bar 38 is placed on the upper surface of the guide sleeve 31. The rotating bar 38 can cooperate with the support plate 37 to support the rotation of the rotating bar 38. The first disc 32 and the second disc 34 are both fixed to the support plate 37 and the storage sleeve 2 respectively with bolts. The bolts are not shown in the figure.

[0019] Specifically, a threaded rod 39 is inserted and connected inside the rotating bar 38, and the threaded rod 39 is connected to the internal thread of the guide sleeve 31.

[0020] In this embodiment, the threaded rod 39 can cooperate with the rotating bar 38 to guide the threaded rod 39.

[0021] In this embodiment: a replacement device 4 is provided on the lower surface of the support plate 37. The replacement device 4 includes a stabilizing block 43. The stabilizing block 43 is fixedly connected to the lower surface of the support plate 37. The stabilizing block 43 is placed on the top of the telescopic rod 1. The stabilizing block 43 can cooperate with the support plate 37 to achieve the purpose of fixing the stabilizing block 43.

[0022] Specifically, a threaded block 42 is fixedly connected to the surface of the stabilizing block 43, and the threaded block 42 is located below the connecting ring 5.

[0023] In this embodiment, the threaded block 42 can cooperate with the stabilizing block 43 to achieve the purpose of fixing the threaded block 42.

[0024] Specifically, the surface of the telescopic rod 1 is provided with a threaded hole 41, and the threaded block 42 is connected to the internal thread of the threaded hole 41. The threaded hole 41 can cooperate with the telescopic rod 1 to achieve the purpose of storing the threaded block 42.

[0025] Specifically, the inner side of the guide sleeve 31 is fixedly connected to the insert block 44, which is inserted into the interior of the first disc 32.

[0026] In this embodiment, the insert 44 can cooperate with the guide sleeve 31 and the first disk 32 to restrict the rotation of the guide sleeve 31.

[0027] Working principle: By setting up the protective device 3, when the worker needs to protect the pneumatic rod, the worker places the second disc 34 on the telescopic rod 1, and the second disc 34 is placed on the storage sleeve 2. The second disc 34 drives the protective spring 33, and the protective spring 33 drives the first disc 32. The worker installs the connecting ring 5 on the telescopic rod 1. The first disc 32 and the second disc 34 are fixed to the support plate 37 and the storage sleeve 2 by bolts. The worker places the guide sleeve 31 on the support plate 37, and the guide sleeve 31 slides on the surface of the storage sleeve 2. Rotate the rotating bar 38. When the rotating bar 38 aligns with the groove on the surface of the guide sleeve 31, the worker inserts the threaded rod 39 into the rotating bar 38. The threaded rod 39 is connected to the internal thread of the guide sleeve 31. When the worker opens the cabinet door, the cabinet door drives the connecting ring 5, which in turn drives the telescopic rod 1. The telescopic rod 1 slides inside the storage sleeve 2, driving the support plate 37 and the piston. The support plate 37 drives the first disc 32, which pulls the protective spring 33. When the piston is about to approach one end of the storage sleeve 2, the piston stops sliding. When the worker closes the cabinet door, the telescopic rod 1 retracts, causing the piston to slide towards the other end of the storage sleeve 2. The telescopic rod 1 also drives the guide sleeve 31, which abuts against the rubber block 35, stopping the piston from sliding. By setting up the protective device 3, the pneumatic rod can be effectively protected, preventing damage to the piston inside the pneumatic rod and thus improving its service life. In addition, by setting up the replacement device 4, when the worker needs to replace the protective spring 33, the worker removes the guide sleeve 31, the first disc 32, and the second disc 34, rotates the connecting ring 5, and the connecting ring 5 drives the stabilizing block 43. The stabilizing block 43 drives the threaded block 42, which retracts and disengages from the threaded hole 41. The worker then removes the first disc 32, which drives the protective spring 33 and the second disc 34. The worker then installs the new protective spring 33 on the pneumatic rod. By setting up the replacement device 4, the worker can easily replace the protective spring 33, avoiding time-consuming replacements and improving the efficiency of the replacement process.

Claims

1. A pneumatic rod for furniture with overload protection to prevent damage, comprising a telescopic rod (1), characterized in that: The telescopic rod (1) is fitted with a storage sleeve (2), and the top of the telescopic rod (1) is fitted with a connecting ring (5). The surface of the connecting ring (5) is provided with a protective device (3), the protective device (3) includes a support plate (37), and the support plate (37) is fixedly connected to the surface of the connecting ring (5); A guide sleeve (31) is placed on the surface of the support plate (37). A second disc (34) is installed on the upper surface of the storage sleeve (2). A first disc (32) is installed on the lower surface of the support plate (37). A protective spring (33) is fixedly connected between the first disc (32) and the second disc (34). The protective spring (33) is located inside the guide sleeve (31). A support ring (36) is fixedly connected to the surface of the storage sleeve (2). A rubber block (35) is fixedly connected to the upper surface of the support ring (36). The rubber block (35) is located below the guide sleeve (31). A limit component is provided on the surface of the support plate (37).

2. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 1, characterized in that: The limiting component includes a rotating bar (38), which is rotatably connected to the surface of the support plate (37) and is placed on the upper surface of the guide sleeve (31).

3. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 2, characterized in that: A threaded rod (39) is inserted inside the rotating bar (38), and the threaded rod (39) is threadedly connected to the inside of the guide sleeve (31).

4. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 1, characterized in that: The lower surface of the support plate (37) is provided with a replacement device (4), which includes a stabilizing block (43). The stabilizing block (43) is fixedly connected to the lower surface of the support plate (37) and is placed on the top of the telescopic rod (1).

5. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 4, characterized in that: The surface of the stabilizing block (43) is fixedly connected to a threaded block (42), which is located below the connecting ring (5).

6. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 5, characterized in that: The telescopic rod (1) has a threaded hole (41) on its surface, and the threaded block (42) is connected to the internal thread of the threaded hole (41).

7. A pneumatic rod for furniture with overload protection to prevent damage, as described in claim 1, characterized in that: The inner side of the guide sleeve (31) is fixedly connected to the insert (44), and the insert (44) is inserted into the interior of the first disc (32).

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