Hanging device

Abstract

The application relates to the technical field of transmission equipment, in particular to a stop-and-go lifting device which is compact and beautiful in structure, has large bearing capacity, can be stopped at any position in the movement process, and runs smoothly without noise; the stop-and-go lifting device comprises a base, a three-stage sliding arm, a first sealing cover, a second-stage sliding arm, a second sealing cover, a third sealing cover, a first-stage sliding arm, a top cover, a fourth sealing cover, a retainer, rollers and a connecting mechanism, the base and the first sealing cover are respectively installed at two ends of the three-stage sliding arm, the second-stage sliding arm is slidably connected with the through hole of the first sealing cover, the second sealing cover and the third sealing cover are respectively installed at two ends of the second-stage sliding arm, the third sealing cover is slidably connected with the cavity of the three-stage sliding arm, the first-stage sliding arm is slidably connected with the through slot of the second sealing cover, the top cover and the fourth sealing cover are coaxially installed at two ends of the first-stage sliding arm respectively, the connecting mechanism is connected with the base and the top cover respectively, and the mounting hole of the third sealing cover and the connecting hole of the fourth sealing cover are connected with the connecting mechanism respectively.

Description

Technical Field

[0001] This invention relates to the technical field of transmission equipment, and in particular to a stop-and-go lifting device. Background Technology

[0002] A gas spring is an industrial component that provides support, cushioning, braking, height adjustment, and angle adjustment. It consists of the following parts: a pressure cylinder, piston rod, piston, sealing guide sleeve, filling material (inert gas or an oil-gas mixture), internal and external control elements (for controllable gas springs), and connectors. The principle is to fill the sealed pressure cylinder with inert gas or an oil-gas mixture, making the pressure inside the chamber several times or tens of times higher than atmospheric pressure. The piston rod's movement is achieved by utilizing the pressure difference created by the smaller cross-sectional area of ​​the piston rod compared to the piston's cross-sectional area. Due to this fundamental difference in principle, gas springs have significant advantages over ordinary springs: relatively slower speed, smaller dynamic force variation (generally within 1:1.2), and easier control.

[0003] Currently, similar products on the market use electric push rods for up-and-down movement, with some sliding arms equipped with rollers and others with friction plates to facilitate the movement. Their drawbacks are:

[0004] 1. Electric linear actuators are relatively expensive and require a large installation space;

[0005] Second, the installation space for the rollers is too large, and the structural requirements for the installation parts are quite complex.

[0006] Third, the friction plates generate significant resistance during operation. Summary of the Invention

[0007] The main objective of this invention is to provide a stop-and-go lifting device, thereby effectively solving the problems pointed out in the background art.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] The self-stop lifting device includes a base, a three-stage sliding arm, a first sealing cover, a second-stage sliding arm, a second sealing cover, a third sealing cover, a first-stage sliding arm, a top cover, a fourth sealing cover, a cage, rollers, and a connecting mechanism. The base and the first sealing cover are respectively installed at both ends of the third-stage sliding arm. The first sealing cover has a through hole, and the second-stage sliding arm is slidably connected to the through hole of the first sealing cover. The second and third sealing covers are respectively installed at both ends of the second-stage sliding arm. The third sealing cover is slidably connected to the cavity of the third-stage sliding arm. The third sealing cover has a mounting hole, and the second sealing cover... The upper part is provided with a through groove, and the first-stage sliding arm and the second sealing cover are slidably connected through the through groove. The top cover and the fourth sealing cover are coaxially installed at both ends of the first-stage sliding arm. The fourth sealing cover is slidably connected to the inner cavity of the second-stage sliding arm. The fourth sealing cover is provided with a connecting hole, and the connecting mechanism is connected to the base and the top cover respectively. The mounting hole of the third sealing cover and the connecting hole of the fourth sealing cover are connected to the connecting mechanism respectively. The cage is provided with a mounting groove, and the rollers are installed inside the mounting groove of the cage. Multiple sets of rollers are connected to the base and the second-stage sliding arm, as well as the second-stage sliding arm and the first-stage sliding arm respectively.

[0010] Furthermore, the device includes a base, a three-stage sliding arm, a first sealing cover, a second-stage sliding arm, a second sealing cover, a third sealing cover, a first-stage sliding arm, a top cover, a fourth sealing cover, a cage, rollers, and a connecting mechanism. The base and the first sealing cover are respectively installed at both ends of the three-stage sliding arm. The first sealing cover has a through hole, and the second-stage sliding arm is slidably connected to the through hole of the first sealing cover. The second and third sealing covers are respectively installed at both ends of the second-stage sliding arm, and the third sealing cover is slidably connected to the cavity of the three-stage sliding arm. The third sealing cover has an installation hole, and the second sealing cover has a through groove, and the first-stage sliding arm is slidably connected to the through groove of the second sealing cover. The top cover and the fourth sealing cover are coaxially installed at both ends of the first-stage sliding arm, and the fourth sealing cover is slidably connected to the inner cavity of the second-stage sliding arm. The fourth sealing cover has a connecting hole, and the connecting mechanism is respectively connected to the base and the top cover. The installation hole of the third sealing cover and the connecting hole of the fourth sealing cover are respectively connected to the connecting mechanism. The cage has an installation groove, and the rollers are installed inside the installation groove of the cage. Multiple sets of rollers are respectively connected to the base and the second-stage sliding arm, as well as the second-stage sliding arm and the first-stage sliding arm.

[0011] Furthermore, the adjustment mechanism includes a transmission column and a connecting member. The transmission column is slidably installed inside the connecting rod shaft cavity, and the connecting member is installed on the transmission column. The connecting member is slidably connected to the connecting rod shaft cavity. The connecting member has a small radius in the middle. The connecting rod is provided with a flow hole and an adjustment hole. The flow hole is located inside the working cavity of the gas spring cylinder, and the adjustment hole is located outside the cavity of the gas spring cylinder.

[0012] Furthermore, it also includes an adjusting rod, which is mounted on the transmission column through the adjusting groove of the connecting rod.

[0013] Furthermore, the bearing also includes a three-stage sliding arm, a two-stage sliding arm, and a first-stage sliding arm that are hexagonal profiles, with multiple sets of cages and rollers located on the six sides of the three-stage sliding arm, the two-stage sliding arm, and the first-stage sliding arm, forming a hexahedral rolling bearing.

[0014] Furthermore, it also includes a return spring, which is installed inside the connecting rod shaft cavity and is connected to the transmission column.

[0015] Furthermore, it also includes a baffle, which is mounted on the connector.

[0016] Furthermore, it also includes long slots on the primary sliding arm.

[0017] The beneficial effects of the present invention after adopting the above technical solution are as follows: the second-stage slide arm and the third-stage slide arm are positioned and slidably connected by the cooperation of the third sealing cover and the first sealing cover; the first-stage slide arm and the second-stage slide arm are slidably connected by the cooperation of the second sealing cover and the fourth sealing cover; the first-stage slide arm and the third-stage slide arm are respectively connected to the connecting mechanism by the cooperation of the base and the fourth sealing cover; multiple sets of rollers are connected by the cooperation of the retainer; and the rolling support of the third-stage slide arm and the second-stage slide arm, as well as the second-stage slide arm and the first-stage slide arm, by the cooperation of multiple sets of rollers reduces friction. The structure is compact and beautiful, has a large load-bearing capacity, and can be stopped at any position during the movement process, with smooth operation and no noise. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the axial structure of the present invention;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the gas spring cylinder structure of the present invention;

[0022] Figure 4 yes Figure 3 Enlarged structural diagram of section A in the middle;

[0023] The following components are labeled in the attached diagram: 1. Base; 2. Third-stage sliding arm; 3. First sealing cover; 4. Second-stage sliding arm; 5. Second sealing cover; 6. Third sealing cover; 7. First-stage sliding arm; 8. Top cover; 9. Fourth sealing cover; 10. Cage; 11. Roller; 12. Mounting bracket; 13. Connecting seat; 14. Gas spring cylinder; 15. First piston slider; 16. Inert gas; 17. Second piston slider; 18. Hydraulic oil; 19. Connecting rod; 20. Transmission column; 21. Connecting piece; 22. Adjusting rod; 23. Return spring; 24. Baffle. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0025] The installation, connection, or setting methods of all components of the present invention are common mechanical methods, and the specific structure, model, and coefficient indicators of all its components are its own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0026] In the present invention, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology of the lifting device represent only the orientation of the term in its normal use state or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are merely used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] like Figures 1 to 4As shown, the stop-and-go lifting device includes a base 1, a three-stage sliding arm 2, a first sealing cover 3, a second-stage sliding arm 4, a second sealing cover 5, a third sealing cover 6, a first-stage sliding arm 7, a top cover 8, a fourth sealing cover 9, a retainer 10, rollers 11, and a connecting mechanism. The base 1 and the first sealing cover 3 are respectively installed at both ends of the three-stage sliding arm 2. The first sealing cover 3 has a through hole, and the second-stage sliding arm 4 is slidably connected to the through hole of the first sealing cover 3. The second sealing cover 5 and the third sealing cover 6 are respectively installed at both ends of the second-stage sliding arm 4. The third sealing cover 6 is slidably connected to the cavity of the three-stage sliding arm 2. The third sealing cover 6 has an installation hole, and the second sealing cover 7 is slidably connected to the cavity of the third-stage sliding arm 2. The cover 5 is provided with a through groove, the first-stage sliding arm 7 and the second sealing cover 5 are slidably connected in the through groove, the top cover 8 and the fourth sealing cover 9 are coaxially installed at both ends of the first-stage sliding arm 7, the fourth sealing cover 9 is slidably connected in the inner cavity of the second-stage sliding arm 4, the fourth sealing cover 9 is provided with a connecting hole, the connecting mechanism is connected in the base 1 and the top cover 8 respectively, the mounting hole of the third sealing cover 6 and the connecting hole of the fourth sealing cover 9 are connected to the connecting mechanism respectively, the retainer 10 is provided with a mounting groove, the roller 11 is installed inside the mounting groove of the retainer 10, and multiple sets of rollers 11 are connected to the base 1 and the second-stage sliding arm 4 and the second-stage sliding arm 4 and the first-stage sliding arm 7 respectively;

[0028] During use, the third sealing cover 6 and the first sealing cover 3 cooperate to position and slide the secondary slide arm 4 and the tertiary slide arm 2. The second sealing cover 5 and the fourth sealing cover 9 cooperate to slide the primary slide arm 7 and the secondary slide arm 4. The base 1 and the fourth sealing cover 9 cooperate to connect the primary slide arm 7 and the tertiary slide arm 2 to the connecting mechanism respectively. The retainer 10 connects multiple sets of rollers 11. The multiple sets of rollers 11 cooperate to provide rolling support for the tertiary slide arm 2 and the secondary slide arm 4, as well as the secondary slide arm 4 and the primary slide arm 7, to reduce friction. The structure is compact and beautiful, with a large load-bearing capacity. It can be stopped at any position during the movement process, and the operation is smooth and noiseless.

[0029] As a preferred embodiment of the above, the connecting mechanism includes a mounting bracket 12, a connecting seat 13, a gas spring cylinder 14, a first piston slider 15, an inert gas 16, a second piston slider 17, hydraulic oil 18, a connecting rod 19, and an adjusting mechanism. The mounting bracket 12 is mounted on the base 1, the connecting seat 13 is mounted on the top cover 8, the gas spring cylinder 14 is rotatably mounted on the mounting bracket 12, the first piston slider 15 is slidably mounted inside the working chamber of the gas spring cylinder 14, the inert gas 16 fills the working chamber of the first piston slider 15 and the gas spring cylinder 14, the second piston slider 17 is slidably mounted inside the working chamber of the gas spring cylinder 14, the hydraulic oil 18 fills the working chamber of the gas spring cylinder 14 in the middle of the second piston slider 17 and the first piston slider 15, the connecting rod 19 is mounted on the second piston slider 17 and slidably connected to the shaft hole of the gas spring cylinder 14, and the connecting rod 19 is connected to the connecting seat 13.

[0030] As a preferred embodiment of the above, the adjustment mechanism includes a transmission column 20 and a connecting member 21. The transmission column 20 is slidably installed inside the shaft cavity of the connecting rod 19, and the connecting member 21 is installed on the transmission column 20. The connecting member 21 is slidably connected to the shaft cavity of the connecting rod 19. The connecting member 21 has a small radius in the middle. The connecting rod 19 is provided with a flow hole and an adjustment hole. The flow hole is located inside the working cavity of the gas spring cylinder 14, and the adjustment hole is located outside the cavity of the gas spring cylinder 14.

[0031] During use, the position of the connecting piece 21 is adjusted by adjusting the adjusting rod 22, and the working chambers of the gas spring cylinders 14 at both ends of the second piston slider 17 are adjusted by adjusting the position of the connecting piece 21. The hydraulic oil 18 flows through the flow hole of the connecting rod 19 into the working chambers of the gas spring cylinders 14 at both ends of the second piston slider 17. The displacement is controlled by controlling the amount of hydraulic oil 18 in the working chambers of the gas spring cylinders 14 at both ends of the second piston slider 17, thereby increasing the functionality of the device.

[0032] As a preferred embodiment of the above, it also includes an adjusting rod 22, which is mounted on the transmission column 20 through the adjusting groove of the connecting rod 19;

[0033] During use, the adjustment rod 22 increases the ease of adjustment of the drive column 20, improves the adaptability of the device, and reduces the difficulty of operation.

[0034] As a preferred embodiment of the above, the third-stage slide arm 2, the second-stage slide arm 4 and the first-stage slide arm 7 are all hexagonal profiles, and multiple sets of cages 10 and rollers 11 are respectively located on the six sides of the third-stage slide arm 2, the second-stage slide arm 4 and the first-stage slide arm 7, forming a hexahedral rolling bearing.

[0035] During use, it improves the overall load-bearing strength of the device, reduces resistance during movement, and minimizes noise during transmission.

[0036] As a preferred embodiment of the above embodiment, a return spring 23 is also included. The return spring 23 is installed inside the shaft cavity of the connecting rod 19 and is connected to the transmission column 20.

[0037] During use, the return spring 23 drives the adjusting rod 22 to the position of the transmission column 20, providing a reset force, which increases the connection stability of the device and improves the connection strength of the device.

[0038] As a preferred embodiment of the above embodiment, a baffle 24 is also included, which is mounted on the connector 21;

[0039] During use, the baffle 24 limits the movement of the connector 21, while increasing the contact area of ​​the hydraulic oil 18 between the connector 21 and the second piston slider 17 and the first piston slider 15, thereby increasing the contact pressure and improving the connection sealing.

[0040] As a preferred embodiment of the above embodiment, the primary sliding arm 7 is further provided with a long slot hole;

[0041] During use, the long slot of the first-stage sliding arm 7 makes it easy to drive and adjust the adjusting rod 22, increasing the adaptability of the device and the convenience of the slot.

[0042] This system uses a gas spring cylinder 14 as a power source. The gas spring cylinder 14 is mounted on the base 1 via a mounting bracket 14. The top of the gas spring cylinder 14 is connected to the top plate 8. The top plate 8 is mounted on the first-stage sliding arm 7. Between the first-stage sliding arm 7 and the second-stage sliding arm 4, a plastic retainer 10 and twelve rollers 11 form a hexahedral rolling bearing, which enables the first-stage sliding arm 7 and the second-stage sliding arm 4 to slide. The structure between the second-stage sliding arm 4 and the third-stage sliding arm 2 is the same. When the first-stage sliding arm 7 rises to the top, it will drive the second-stage sliding arm 4 to move. The gas spring cylinder 14 can stop at any position during the movement, so the entire system can stop at will.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A self-stopping lifting device, characterized in that, The device includes a base (1), a three-stage sliding arm (2), a first sealing cover (3), a second-stage sliding arm (4), a second sealing cover (5), a third sealing cover (6), a first-stage sliding arm (7), a top cover (8), a fourth sealing cover (9), a retainer (10), rollers (11), and a connecting mechanism. The base (1) and the first sealing cover (3) are respectively installed at both ends of the three-stage sliding arm (2). The first sealing cover (3) has a through hole. The second-stage sliding arm (4) is slidably connected to the through hole of the first sealing cover (3). The second sealing cover (5) and the third sealing cover (6) are respectively installed at both ends of the second-stage sliding arm (4). The third sealing cover (6) is slidably connected to the cavity of the three-stage sliding arm (2). The third sealing cover (6) has an mounting hole. The upper part is provided with a through groove. The first-stage sliding arm (7) and the second sealing cover (5) are slidably connected in the through groove. The top cover (8) and the fourth sealing cover (9) are coaxially installed at both ends of the first-stage sliding arm (7). The fourth sealing cover (9) is slidably connected in the inner cavity of the second-stage sliding arm (4). The fourth sealing cover (9) is provided with a connecting hole. The connecting mechanism is connected in the base (1) and the top cover (8) respectively. The mounting hole of the third sealing cover (6) and the connecting hole of the fourth sealing cover (9) are connected to the connecting mechanism respectively. The retainer (10) is provided with a mounting groove. The roller (11) is installed inside the mounting groove of the retainer (10). Multiple sets of the roller (11) are connected to the base (1) and the second-stage sliding arm (4) and the second-stage sliding arm (4) and the first-stage sliding arm (7) respectively. The connecting mechanism includes a mounting bracket (12), a connecting seat (13), a gas spring cylinder (14), a first piston slider (15), an inert gas (16), a second piston slider (17), hydraulic oil (18), a connecting rod (19), and an adjusting mechanism. The mounting bracket (12) is mounted on the base (1), the connecting seat (13) is mounted on the top cover (8), the gas spring cylinder (14) is rotatably mounted on the mounting bracket (12), and the first piston slider (15) is slidably mounted inside the working chamber of the gas spring cylinder (14). The inert gas (16) fills the working chamber of the first piston slider (15) and the gas spring cylinder (14), the second piston slider (17) is slidably installed inside the working chamber of the gas spring cylinder (14), the hydraulic oil (18) fills the working chamber of the gas spring cylinder (14) in the middle of the second piston slider (17) and the first piston slider (15), the connecting rod (19) is installed on the second piston slider (17) and slidably connected to the shaft hole of the gas spring cylinder (14), and the connecting rod (19) is connected to the connecting seat (13); The adjustment mechanism includes a transmission column (20) and a connecting piece (21). The transmission column (20) is slidably installed inside the shaft cavity of the connecting rod (19). The connecting piece (21) is installed on the transmission column (20). The connecting piece (21) is slidably connected to the shaft cavity of the connecting rod (19). The connecting piece (21) has a small radius in the middle. The connecting rod (19) is provided with a flow hole and an adjustment hole. The flow hole is located inside the working cavity of the gas spring cylinder (14), and the adjustment hole is located outside the cavity of the gas spring cylinder (14). It also includes an adjusting rod (22), which is mounted on the transmission column (20) through the adjusting groove of the connecting rod (19).

2. The lifting device that stops and starts as described in claim 1, characterized in that, It also includes a three-stage sliding arm (2), a two-stage sliding arm (4) and a one-stage sliding arm (7) which are regular hexagonal profiles. Multiple sets of the cages (10) and rollers (11) are located on the six sides of the three-stage sliding arm (2), the two-stage sliding arm (4) and the one-stage sliding arm (7), respectively. The cages (10) and rollers (11) form a hexahedral rolling bearing.

3. The stop-and-go lifting device as described in claim 1, characterized in that, It also includes a return spring (23), which is installed inside the shaft cavity of the connecting rod (19) and is connected to the transmission column (20).

4. The stop-and-go lifting device as described in claim 1, characterized in that, It also includes a baffle (24) which is mounted on the connector (21).

5. The stop-and-go lifting device as described in claim 1, characterized in that, It also includes a long slot hole on the first-stage sliding arm (7).

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