A furniture jack capable of rapid lifting, labor saving and self-locking
By designing a furniture jack that includes worm gear, worm, connecting frame, tooth plate and handle, the problem of labor-intensive and unsafe use of hand-held jacks is solved, and the effect of labor-saving and stable lifting and mechanical self-locking is achieved.
Patent Information
- Application Number
- CN202421443542.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-24
AI Technical Summary
In use, the lift is generated by the wrist grip force, which causes labor-intensive lifting and lowering of medium and large objects. If the weight of the object is greater than the friction force, relative sliding may occur, making use unsafe.
A furniture jack including a worm gear, a worm, a connecting frame with movable components, a tooth plate and a handle are designed. Through the cooperation of the worm gear and the worm gear, the tooth plate moves up and down, and the self-locking effect is achieved by the cooperation of the gear and the limit block to avoid relative sliding.
It realizes stable lifting and lowering with labor-saving and self-locking of mechanical structures, safe use, suitable for stable lifting and lowering of medium and large objects, and has the characteristics of being convenient to carry and small in size.
Smart Images
Figure CN222743969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of jacks, in particular to a furniture jack which can be quickly lifted and lowered, saves labor and is self-locking. Background Art
[0002] A jack is a small and light lifting equipment that uses a rigid lifting piece as a working device and can lift heavy objects within a small stroke of a top support or a bottom support claw.
[0003] At present, jacks are widely used, among which household jacks are used in families, while furniture jacks that can be quickly raised and lowered, save effort and are self-locking are hand-held and use the friction principle to provide lifting force. When people use it, it is convenient to lift medium and large objects such as furniture. However, during the use of the hand-held furniture lifter, the lifting force is generated by the grip of the wrist. If medium and large objects such as furniture are too heavy, the lifting process is very laborious. If the weight of the object is greater than the friction force, relative sliding may occur, which is unsafe to use. In this case, the hand-held furniture jack that can be quickly raised and lowered, save effort and is self-locking cannot be used normally, and its user experience is low and the use process is laborious.
[0004] Therefore, it is necessary to provide a furniture jack that can be quickly lifted, labor-saving and self-locking to solve the above-mentioned technical problems. Utility Model Content
[0005] The utility model provides a furniture jack which can be raised and lowered quickly, saves effort and is self-locking, and solves the problem that during the use of a hand-held furniture lifter, the lifting force is generated by the gripping force of the wrist, and the lifting process is very laborious if medium and large objects such as furniture are too heavy, and if the weight of the object is greater than the friction force, relative sliding may occur, making it unsafe to use.
[0006] In order to solve the above technical problems, the utility model provides a furniture jack which can be quickly lifted, labor-saving and self-locking, comprising:
[0007] A base, wherein a shell is disposed on the surface of the base, a rotating assembly is disposed inside the shell, the rotating assembly comprises a worm wheel, a worm is meshed on one side of the worm wheel, a rotating rod is disposed inside the worm wheel, and a spring is sleeved on the surface of the rotating rod and on a side opposite to the worm wheel;
[0008] a tooth plate meshed with one side of the worm gear;
[0009] A connecting frame, the connecting frame is arranged outside the housing and located on a side opposite to the worm, and a movable component is arranged on one side of the connecting frame;
[0010] A handle is connected to one end of the connecting frame.
[0011] Preferably, the movable component includes a rotating rod, a gear is sleeved on the surface of the rotating rod, a limit block is provided on one side of the gear, a connecting rod is provided inside the limit block, and one end of the connecting rod is rotatably connected to one side of the inner wall of the outer shell through a rotating shaft.
[0012] Preferably, a shell cover is provided on one side of the connecting frame.
[0013] Preferably, a circular cover is provided on the back of the housing.
[0014] Preferably, a fixing assembly is provided on both the left and right sides of the base surface, and the fixing assembly comprises a threaded rod, a movable sleeve is sleeved on the surface of the threaded rod, and an L-shaped connecting rod is connected to the surface of the movable sleeve.
[0015] Preferably, one end of the L-shaped connecting rod is connected to a supporting seat.
[0016] Preferably, the surface of the threaded rod and both sides of the movable sleeve are threadedly connected with threaded sleeves.
[0017] Compared with the related art, the utility model provides a furniture jack that can be quickly lifted, labor-saving and self-locking, and has the following beneficial effects:
[0018] The utility model provides a furniture jack which can be quickly lifted and lowered, saves effort and is self-locking. A worm gear, a worm, a connecting frame with movable components, a toothed plate and a handle are arranged inside an outer shell for coordinated operation. The jack has the advantages of labor-saving and stable lifting, a self-locking mechanical structure, convenient carrying, small size and safe use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A structural schematic diagram of a first embodiment of a furniture jack that can be quickly lifted and lowered, saves effort and is self-locking provided by the utility model;
[0020] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;
[0021] Figure 3 for Figure 1 A schematic diagram of the overall internal structure of the device shown;
[0022] Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown;
[0023] Figure 5 for Figure 1 A first three-dimensional structural schematic diagram of the overall device shown;
[0024] Figure 6 for Figure 5An enlarged schematic diagram of part C is shown;
[0025] Figure 7 for Figure 1 A second three-dimensional structural schematic diagram of the overall device shown;
[0026] Figure 8 for Figure 7 An enlarged schematic diagram of the D portion shown;
[0027] Fig. 9 for Figure 1 A third three-dimensional structural schematic diagram of the overall device shown;
[0028] Fig.10 for Figure 1 A fourth three-dimensional structural schematic diagram of the overall device shown;
[0029] Fig.11 A structural schematic diagram of a second embodiment of a furniture jack that can be quickly lifted and lowered, saves effort and is self-locking provided by the utility model;
[0030] Fig.12 for Fig.11 An enlarged schematic diagram of part E is shown.
[0031] Numbers in the figure: 1, base, 2, housing,
[0032] 3. Rotating assembly, 31. Worm gear, 32. Worm,
[0033] 4. Tooth plate, 5. Rotating rod, 7. Spring, 8. Round cover,
[0034] 9. Movable assembly, 91. Rotating rod, 92. Gear, 93. Connecting rod, 94. Limit block,
[0035] 10. Connecting frame, 11. Shell cover, 12. Handle,
[0036] 13. fixing assembly, 131. threaded rod, 132. movable sleeve, 133. L-shaped connecting rod, 134. supporting seat, 135. threaded sleeve. DETAILED DESCRIPTION
[0037] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0038] First embodiment
[0039] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 ,in, Figure 1 A structural schematic diagram of a first embodiment of a furniture jack that can be quickly lifted and lowered, saves effort and is self-locking provided by the utility model; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A schematic diagram of the overall internal structure of the device shown; Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 5 for Figure 1 A first three-dimensional structural schematic diagram of the overall device shown; Figure 6 for Figure 5 An enlarged schematic diagram of part C is shown; Figure 7 for Figure 1 A second three-dimensional structural schematic diagram of the overall device shown; Figure 8 for Figure 7 An enlarged schematic diagram of the D portion shown; Fig. 9 for Figure 1 A third three-dimensional structural schematic diagram of the overall device shown; Fig.10 for Figure 1 A furniture jack that can be quickly raised and lowered, labor-saving and self-locking, comprises:
[0040] A base 1, a shell 2 is provided on the surface of the base 1, a rotating assembly 3 is provided inside the shell 2, the rotating assembly 3 includes a worm wheel 31, a worm 32 is meshed on one side of the worm wheel 31, a rotating rod 5 is provided inside the worm wheel 31, and a spring 7 is sleeved on the surface of the rotating rod 5 and on a side opposite to the worm wheel 31;
[0041] a tooth plate 4, the tooth plate 4 being meshed with one side of the worm gear 31;
[0042] A connecting frame 10, the connecting frame 10 is arranged outside the housing 2 and located on a side opposite to the worm 32, and a movable component 9 is arranged on one side of the connecting frame 10;
[0043] A handle 12 is connected to one end of the connecting frame 10 .
[0044] The base 1 and the housing 2 are both made of stainless steel.
[0045] The mechanical structure device is composed of a handle 12 with a gear 92 and a limit block 94, a worm 32, a worm wheel 31, a tooth plate 4, a quick lifting mechanism and other structures. The lifting chassis is made of stainless steel to increase the force. The present invention uses a ratchet to drive the worm rod, the worm rod is meshed with the gear, and the gear is meshed with the spur rack; when lifting objects, the present invention drives the worm rod by shaking the ratchet handle, and a lever is formed between the handle and the turbine, which is very labor-saving. In the lifting process, the worm rod and turbine mechanical structure are self-locking and will not slide relative to each other, so that medium and large objects can be stably lifted and lifted, which is very safe. The quick lifting mechanism can quickly lift the chassis to the use position when the jack is unloaded and quickly fall back to the storage state after use, which simplifies the use steps of the jack. The chassis is made of stainless steel with high hardness, which can better fit the ground of the use environment. After use, the furniture jack that can be quickly lifted, labor-saving and self-locking is convenient and simple to store, and it occupies a small space, thereby improving the user experience.
[0046] The movable component 9 includes a rotating rod 91, a gear 92 is sleeved on the surface of the rotating rod 91, a limit block 94 is provided on one side of the gear 92, a connecting rod 93 is provided inside the limit block 94, and one end of the connecting rod 93 is rotatably connected to one side of the inner wall of the shell 2 through a rotating shaft.
[0047] A shell cover 11 is disposed on one side of the connecting frame 10 .
[0048] A circular cover 8 is provided on the back of the housing 2 .
[0049] One end of the worm 32 is connected to one end of the rotating rod 91 , and the worm wheel 31 is rotatably connected to the inner wall of the housing 2 via a rotating shaft. The use of the limit block 94 can limit the gear 92 .
[0050] The limit block 94 and the gear 9 are used in conjunction with each other to play a limiting role after the worm 32 and the worm wheel 31 drive the tooth plate 4 to move to the specified position. Through holes compatible with the tooth plate 4 are provided at the top and bottom of one side of the shell 2, which are convenient for the worm wheel 31 and the worm 32 to drive the tooth plate 4 to move up and down. The shell 2 has two half shells connected by bolt threads, and the gear 92 is also connected to one end of the worm 31 through the rotating block, and the connecting frame 10 and the shell cover 11 can move on the gear 92, and are pulled after the driving gear 92 rotates and contacts with the teeth of the gear 92 through the limit block 94.
[0051] The utility model provides a furniture jack that can be quickly lifted, labor-saving and self-locking. The working principle is as follows:
[0052] During use, when the toothed plate 4 is lifted, the limit block 94 is first separated from the gear 92, and then the handle 12 is pushed upward to drive the connecting frame 10 to move. When the handle 12 drives the connecting frame 10 to rotate to a suitable position, the limit block 94 is connected to the gear 92 for limiting, and then the handle 12 is pulled to use the limit block 94 and the gear 92 to drive the rotating rod 91 to rotate. When the rotating rod 91 rotates, it drives the worm 32 inside the housing 2 to rotate. When the worm 32 rotates, it drives the worm wheel 31 to rotate. When the worm wheel 31 rotates, it drives the toothed plate 4 to move up and down.
[0053] Compared with the related art, the utility model provides a furniture jack that can be quickly lifted, labor-saving and self-locking, and has the following beneficial effects:
[0054] The utility model provides a furniture jack which can be quickly lifted and lowered, saves effort and is self-locking. A worm wheel 31, a worm 32, a connecting frame 10 with a movable component 9, a tooth plate 4 and a handle 12 are arranged inside a shell 2 to cooperate with each other for operation, and has the advantages of labor-saving and stable lifting, a self-locking mechanical structure, convenient carrying, small size and safe use.
[0055] Second embodiment
[0056] Please refer to Fig.11 and Fig.12 Based on the first embodiment of the present application, which provides a furniture jack that can be quickly raised and lowered, saves effort and is self-locking, the second embodiment of the present application provides another furniture jack that can be quickly raised and lowered, saves effort and is self-locking. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.
[0057] Specifically, the second embodiment of the present application provides a furniture jack that can be quickly raised and lowered, saves effort and is self-locking. The difference is that, for a furniture jack that can be quickly raised and lowered, saves effort and is self-locking, both sides of the surface of the base 1 are provided with fixing components 13, and the fixing components 13 include a threaded rod 131, and the surface of the threaded rod 131 is provided with a movable sleeve 132, and the surface of the movable sleeve 132 is connected to an L-shaped connecting rod 133.
[0058] The threaded rod 131 is connected to the surface of the base 1 , and the two threaded sleeves 135 push the movable sleeve 132 to move on the surface of the threaded rod 131 .
[0059] One end of the L-shaped connecting rod 133 is connected to a supporting seat 134 .
[0060] Threaded sleeves 135 are threadedly connected on the surface of the threaded rod 131 and on both sides of the movable sleeve 132 .
[0061] The utility model provides a furniture jack that can be quickly lifted, labor-saving and self-locking. The working principle is as follows:
[0062] During use, when the support seat 134 is adjusted, the two threaded sleeves 135 on the surface of the threaded rod 131 are rotated to push the movable sleeve 132 to move. When the movable sleeve 132 moves, the support seat 135 is driven to move to a suitable position through the L-shaped connecting rod 133.
[0063] Compared with the related art, the utility model provides a furniture jack that can be quickly lifted, labor-saving and self-locking, and has the following beneficial effects:
[0064] The utility model provides a furniture jack which can be lifted and lowered quickly, saves labor and is self-locking. Fixing components 13 are arranged on the left and right sides of the surface of a base 1, which can play a role of positioning and fixing when used at home.
[0065] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A furniture jack that can be raised and lowered quickly, saves effort and is self-locking, characterized in that: include: A base, wherein a shell is disposed on the surface of the base, a rotating assembly is disposed inside the shell, the rotating assembly comprises a worm wheel, a worm is meshed on one side of the worm wheel, a rotating rod is disposed inside the worm wheel, and a spring is sleeved on the surface of the rotating rod and on a side opposite to the worm wheel; a tooth plate meshed with one side of the worm gear; A connecting frame, the connecting frame is arranged outside the housing and located on a side opposite to the worm, and a movable component is arranged on one side of the connecting frame; A handle is connected to one end of the connecting frame.
2. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 1, characterized in that: The movable component includes a rotating rod, a gear is sleeved on the surface of the rotating rod, a limit block is arranged on one side of the gear, a connecting rod is arranged inside the limit block, and one end of the connecting rod is rotatably connected to one side of the inner wall of the shell through a rotating shaft.
3. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 1, characterized in that: A shell cover is arranged on one side of the connecting frame.
4. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 1, characterized in that: A circular cover is arranged on the back of the housing.
5. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 1, characterized in that: The left and right sides of the base surface are both provided with fixing components, and the fixing components include a threaded rod, a movable sleeve is sleeved on the surface of the threaded rod, and an L-shaped connecting rod is connected to the surface of the movable sleeve.
6. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 5, characterized in that: One end of the L-shaped connecting rod is connected to a supporting seat.
7. The furniture jack capable of rapid lifting, labor saving and self-locking according to claim 5, characterized in that: The surface of the threaded rod and both sides of the movable sleeve are threadedly connected with threaded sleeves.