Nitrogen spring convenient to disassemble and assemble

Abstract

The utility model discloses a nitrogen spring convenient to disassemble and assemble, and relates to the technical field of nitrogen springs, the nitrogen spring convenient to disassemble and assemble comprises a nitrogen spring cylinder body and a nitrogen spring cylinder body, and a column body is arranged in the nitrogen spring cylinder body; a cylinder body sealing cover is arranged outside the cylinder body; a mounting seat is mounted at the bottom of the nitrogen spring cylinder body; the nitrogen spring cylinder body comprises a cylinder body, an air valve and a spring are arranged on the outer side surface and inside the cylinder body respectively, internal threads and a sliding groove are arranged on the inner side of the upper end of the cylinder body, and the sliding groove is annularly formed in the inner wall of the upper end of the cylinder body. When the nitrogen spring is used, the spring is arranged in the cylinder body, downward pressure can be generated when nitrogen in the cylinder body of the nitrogen spring is not filled in time and the content is too low or the weight of a supporting object is too large, the spring in the cylinder body can play a role in buffering pressure, meanwhile, the overall loss of the nitrogen spring is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of nitrogen springs, in particular to a nitrogen spring that is easy to assemble and disassemble. Background Art

[0002] With the continuous development of industrial technology, various new equipment and application scenarios continue to emerge, which puts higher requirements on the installation and disassembly methods of nitrogen springs. The emergence of nitrogen springs that are easy to disassemble is to solve the problems existing in the installation and disassembly process of traditional nitrogen springs and meet the needs of modern industrial development for high efficiency, low cost, flexibility and diversity.

[0003] Compared to traditional nitrogen gas springs, the easy-to-install nitrogen gas spring can significantly reduce the time required for installation and removal, thereby improving the production efficiency and maintenance efficiency of the equipment. The complex installation and removal process of traditional nitrogen gas springs increases maintenance costs, including labor costs, time costs, and the cost of replacing parts that may be damaged due to disassembly. However, the easy-to-install design can reduce maintenance difficulty and maintenance costs.

[0004] Chinese patent publication number CN207005168U discloses a nitrogen spring, comprising a cylinder, a guide sleeve inserted in the opening at the top of the cylinder, and a piston rod movably inserted in the guide sleeve, a first sealing ring is provided at the mating surface of the guide sleeve and the cylinder, a groove is provided on the inner wall of the guide sleeve and a second sealing ring is installed, the bottom of the piston rod is provided with a radially extending hanging platform, the inner wall of the guide sleeve is provided with a step penetrating the bottom wall of the guide sleeve at a position below the groove, the piston rod can move upward until its hanging platform is engaged with the step and abuts against the step surface, characterized in that: a limit sleeve is further provided at a position above the groove above the second sealing ring, the inner diameter of the limit sleeve is smaller than the inner diameter of the guide sleeve and is adapted to the piston rod, which can guide the up and down movement of the piston rod, and a radially extending shoulder is provided at a position above the hanging platform, the outer diameter of the shoulder is smaller than the inner diameter of the guide sleeve below the groove, but larger than the inner diameter of the second sealing ring and the limit sleeve.

[0005] The above-mentioned nitrogen spring is very inconvenient to disassemble. Due to the complex internal structure, different tools and methods need to be adapted during disassembly and assembly, which increases the difficulty and complexity of disassembly and assembly, seriously affects the efficiency and convenience of disassembly and assembly, and is not conducive to the replacement and maintenance of the nitrogen spring. Utility Model Content

[0006] The purpose of the utility model is to provide a nitrogen spring that is easy to disassemble and assemble. First, the column is placed in the nitrogen spring cylinder, and then the cylinder cover is threadedly connected to the nitrogen spring cylinder, so as to achieve quick disassembly and assembly of the nitrogen spring, with a simple structure and easy installation; so as to solve the technical problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A nitrogen spring that is easy to disassemble and assemble, comprising

[0009] A nitrogen spring cylinder, wherein a column is provided inside the nitrogen spring cylinder; a cylinder cover is provided outside the column; and a mounting seat is installed at the bottom of the nitrogen spring cylinder;

[0010] The nitrogen spring cylinder comprises a cylinder body, the outer surface and the interior of which are provided with a gas valve and a spring respectively, an inner thread and a slide groove are provided on the inner side of the upper end of the cylinder body, and the slide groove is provided in an annular shape on the inner wall of the upper end of the cylinder body;

[0011] A first connecting thread is provided on the bottom side surface of the nitrogen spring cylinder, and a plurality of plug-in blocks are fixedly installed above the first connecting thread.

[0012] As a further technical solution of the present invention, a piston seat is provided at the upper end of the spring. The piston seat is annular in design, and a piston column is provided at the top end of the piston seat.

[0013] As a further technical solution of the present invention, the side surface of the piston column body is movably connected to the sealing ring, and the sealing ring is annularly arranged on the inner side of the cover.

[0014] As a further technical solution of the present invention, an external thread is provided on the outer side of the bottom end of the cover, and two symmetrically arranged claws are provided on the bottom end.

[0015] As a further technical solution of the present invention, when the cylinder cover is connected to the nitrogen spring cylinder, the external thread is threadedly connected to the internal thread, and the claw is slidably connected to the slide groove.

[0016] As a further technical solution of the present invention, a first platform is provided at the inner center of the mounting seat, the first platform is an annular groove structure, and a second platform is provided above the mounting seat, a plurality of groups of plug-in slots are provided inside the second platform, and the plurality of groups of plug-in slots correspond to the plurality of groups of plug-in blocks. A third platform is provided at the bottom of the mounting seat, and a second connecting thread is provided inside the third platform, and the second connecting thread is matched and connected with the first connecting thread.

[0017] As a further technical solution of the present invention, the inner diameter of the first platform is larger than that of the second platform, and the inner diameter of the second platform is larger than that of the third platform, and the inner diameter of the second platform is consistent with the outer diameter of the nitrogen spring cylinder.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model is provided with a spring inside the cylinder body during use. When the nitrogen inside the nitrogen spring cylinder body is not filled in time and the content is too low or the weight of the supporting object is too large, downward pressure will be generated. The spring inside the cylinder body can play a role of buffering pressure and reduce the overall loss of the nitrogen spring, thereby reducing the cost of use. During installation, the utility model rotates the cover downward to drive the external thread on the outer side of the bottom of the cover to be threadedly connected with the internal thread on the inner side of the upper end of the cylinder body. The installation and disassembly are convenient. The nitrogen spring that is easy to disassemble can reduce the work intensity of maintenance personnel and reduce maintenance man-hours, thereby reducing the operating cost of the enterprise. During installation, the utility model rotates the cover downward and the claws symmetrically designed on the outer side of the bottom of the cover rotate and move downward, and are slidably connected with the slide groove arranged in an annular shape on the inner side of the upper end of the cylinder body, which is connected to the threaded connection between the internal thread and the external thread. The connection plays a stabilizing role, and at the same time serves as a secondary insurance against emergencies caused by thread wear and aging; the utility model, when performing the overall installation, the mounting seat is fixed in the specified position in advance, and when installing the nitrogen spring cylinder, it is only necessary to align the plug-in block on the side of the nitrogen spring cylinder with the plug-in slot at the mounting seat position and insert it downward until the plug-in block reaches the position of the second platform. At this time, the first connecting thread on the side of the nitrogen spring cylinder is connected with the second connecting thread at the mounting seat position, and the operator rotates the tube thread to realize a quick installation process. During this process, the nitrogen spring cylinder 1 can be quickly installed; the utility model, the top end of the second platform can, in addition to the position corresponding to the plug-in block and the plug-in slot, prevent the nitrogen spring cylinder from falling off during the process of connecting the first connecting thread with the second connecting thread, thereby realizing the anti-detachment connection process between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Figure 2 This utility model Figure 1 rear view.

[0022] Figure 3 This utility model Figure 1 Schematic diagram of the split structure.

[0023] Figure 4 This utility model Figure 3 Top view of .

[0024] Figure 5 This utility model Figure 4 A partial enlarged schematic diagram.

[0025] Figure 6 It is a bottom view of the nitrogen gas spring cylinder in the utility model.

[0026] Figure 7It is a cross-sectional view of the mounting seat in the utility model.

[0027] In the figure: 1-nitrogen spring cylinder, 2-cylinder cover, 3-column, 4-mounting seat;

[0028] 11-cylinder body, 12-air valve, 13-spring, 14-internal thread, 15-slide groove, 16-plug-in block, 17-first connecting thread;

[0029] 21-cover, 22-sealing ring, 23-external thread, 24-claw;

[0030] 31- piston rod, 32- piston seat ring;

[0031] 41 - first platform, 42 - second platform, 43 - connecting slot, 44 - third platform, 45 - second connecting thread. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-7 In the embodiment of the present invention, a nitrogen spring that is easy to disassemble and assemble includes:

[0034] A nitrogen spring cylinder 1 is provided with a column 3 inside the nitrogen spring cylinder 1; a cylinder cover 2 is provided outside the column 3; a mounting seat 4 is installed at the bottom of the nitrogen spring cylinder 1;

[0035] The nitrogen spring cylinder 1 comprises a cylinder 11, an outer surface and an inner portion of the cylinder 11 are provided with an air valve 12 and a spring 13, an inner side of the upper end of the cylinder 11 is provided with an internal thread 14 and a slide groove 15, and the slide groove 15 is annularly provided on the inner wall of the upper end of the cylinder 11;

[0036] The bottom side surface of the nitrogen spring cylinder 1 is provided with a first connecting thread 17, and a plurality of plug-in blocks 16 are fixedly installed above the first connecting thread 17;

[0037] A piston seat ring 32 is provided at the upper end of the spring 13 . The piston seat ring 32 is annular in design, and a piston column 31 is provided at the top end of the piston seat ring 32 .

[0038] By adopting the above technical solution, when in use, a spring 13 is provided inside the cylinder 11. When the nitrogen inside the nitrogen spring cylinder 1 is not filled in time and the nitrogen content is too low or the weight of the support is too heavy, downward pressure will be generated. The spring 13 inside the cylinder 11 can play a role in buffering the pressure, while reducing the overall loss of the nitrogen spring and reducing the cost of use.

[0039] In this embodiment, the side surface of the piston column 31 is movably connected to the sealing ring 22, and the sealing ring 22 is annular and arranged on the inner side of the cover 21;

[0040] The outer side of the bottom end of the sealing cover 21 is provided with an external thread 23 and two symmetrically arranged claws 24 are provided at the bottom end.

[0041] By adopting the above technical solution, during installation, the cover 21 rotates downward, and at the same time, the claws 24 symmetrically designed on the outer side of the bottom of the cover 11 rotate downward and move, and are slidably connected with the slide groove 15 arranged in an annular shape on the inner side of the upper end of the cylinder body 11, which stabilizes the threaded connection between the internal thread 14 and the external thread 21, and serves as a secondary insurance against emergencies caused by thread wear and aging.

[0042] In this embodiment, when the cylinder cover 2 is connected to the nitrogen spring cylinder 1 , the external thread 23 is threadedly connected to the internal thread 14 , and the claw 24 is slidably connected to the slide groove 15 .

[0043] By adopting the above technical solution, during installation, the cover 21 is rotated downward, driving the external thread 23 on the outer side of the bottom of the cover 21 to be threadedly connected with the internal thread 14 on the inner side of the upper end of the cylinder body 11, which makes installation and disassembly easy. The nitrogen spring that is easy to disassemble can reduce the workload of maintenance personnel and reduce maintenance hours, thereby reducing the operating costs of the enterprise.

[0044] In this embodiment, a first platform 41 is provided at the inner center of the mounting seat 4, and the first platform 41 is an annular groove structure, and a second platform 42 is provided above the mounting seat 4, and a plurality of groups of plug-in slots 43 are provided inside the second platform 42, and the plurality of groups of plug-in slots 43 correspond to the plurality of groups of plug-in blocks 16. A third platform 44 is provided at the bottom of the mounting seat 4, and a second connecting thread 45 is provided inside the third platform 44, and the second connecting thread 45 is matched and connected with the first connecting thread 17.

[0045] In this embodiment, the inner diameter of the first platform 41 is larger than the inner diameter of the second platform 42 , and the inner diameter of the second platform 42 is larger than the inner diameter of the third platform 44 . The inner diameter of the second platform 42 is consistent with the outer diameter of the nitrogen spring cylinder 1 .

[0046] The working principle of the present invention is as follows: when in use, a spring 13 is provided inside the cylinder 11. When the nitrogen inside the nitrogen spring cylinder 1 is not filled in time and the nitrogen content is too low or the weight of the support is too heavy, downward pressure will be generated. The spring 13 inside the cylinder 11 can play a role in buffering the pressure, while reducing the overall loss of the nitrogen spring and reducing the cost of use.

[0047] During installation, the cover 21 is rotated downward to drive the external thread 23 on the outside of the bottom of the cover 21 to be threadedly connected with the internal thread 14 on the inner side of the upper end of the cylinder body 11. The nitrogen spring is easy to install and disassemble, which can reduce the workload of maintenance personnel and reduce maintenance hours, thereby reducing the operating costs of the enterprise.

[0048] During installation, the cover 21 rotates downward, and at the same time, the claws 24 symmetrically designed on the outer side of the bottom of the cover 11 rotate downward and slide into the annular groove 15 on the inner side of the upper end of the cylinder body 11, thereby stabilizing the threaded connection between the internal thread 14 and the external thread 21 and providing a secondary insurance against unexpected situations caused by thread wear and aging.

[0049] When performing the overall installation, fix the mounting seat 4 in the designated position in advance. When installing the nitrogen spring cylinder 1, it is only necessary to align the plug-in block 16 on the side of the nitrogen spring cylinder 1 with the plug-in slot 43 at the mounting seat 4 and insert it downward until the plug-in block 16 reaches the position of the second platform 42. At this time, the first connecting thread 17 on the side of the nitrogen spring cylinder 1 is connected with the second connecting thread 45 at the mounting seat 4. The operator rotates the thread to realize a quick installation process. In this process, the nitrogen spring cylinder 1 can be quickly installed;

[0050] At the same time, the top of the second platform 42 can prevent the nitrogen spring cylinder 1 from falling off, except for the position corresponding to the plug-in block 16 and the plug-in groove 43, during the connection process between the first connecting thread 17 and the second connecting thread 45, thereby realizing the anti-detachment connection process between the two.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nitrogen spring that is easy to disassemble and assemble, characterized by: include A nitrogen spring cylinder (1) is provided with a column (3) inside the nitrogen spring cylinder (1); a cylinder cover (2) is provided outside the column (3); and a mounting seat (4) is installed at the bottom of the nitrogen spring cylinder (1); The nitrogen spring cylinder (1) comprises a cylinder (11), an outer surface and an inner portion of the cylinder (11) are provided with an air valve (12) and a spring (13), an inner side of the upper end of the cylinder (11) is provided with an internal thread (14) and a slide groove (15), and the slide groove (15) is annularly arranged on the inner wall of the upper end of the cylinder (11); A first connecting thread (17) is provided on the bottom side surface of the nitrogen spring cylinder (1), and a plurality of plug-in blocks (16) are fixedly installed above the first connecting thread (17).

2. The nitrogen gas spring that is easy to assemble and disassemble according to claim 1, characterized in that: The upper end of the spring (13) is provided with a piston seat ring (32), the piston seat ring (32) is designed to be annular, and the top end of the piston seat ring (32) is provided with a piston column (31).

3. The nitrogen gas spring that is easy to assemble and disassemble according to claim 2, characterized in that: The side surface of the main body of the piston column (31) is movably connected to the sealing ring (22), and the sealing ring (22) is annular and arranged on the inner side of the cover (21).

4. The nitrogen gas spring that is easy to assemble and disassemble according to claim 3, characterized in that: The outer side of the bottom end of the sealing cover (21) is provided with an external thread (23), and the bottom end is provided with two symmetrically arranged claws (24).

5. The nitrogen spring that is easy to assemble and disassemble according to claim 1, characterized in that: When the cylinder cover (2) is connected to the nitrogen spring cylinder (1), the external thread (23) is threadedly connected to the internal thread (14), and the claw (24) is slidably connected to the slide groove (15).

6. The nitrogen gas spring that is easy to assemble and disassemble according to claim 1, characterized in that: A first platform (41) is provided at the inner center of the mounting seat (4), and the first platform (41) is an annular groove structure. A second platform (42) is provided above the mounting seat (4), and a plurality of groups of plug-in slots (43) are provided inside the second platform (42), and the plurality of groups of plug-in slots (43) correspond to the plurality of groups of plug-in blocks (16). A third platform (44) is provided at the bottom of the mounting seat (4), and a second connecting thread (45) is provided inside the third platform (44), and the second connecting thread (45) is matched and connected with the first connecting thread (17).

7. The nitrogen gas spring that is easy to assemble and disassemble according to claim 6, characterized in that: The inner diameter of the first platform (41) is greater than the inner diameter of the second platform (42), and the inner diameter of the second platform (42) is greater than the inner diameter of the third platform (44). The inner diameter of the second platform (42) is consistent with the outer diameter of the nitrogen spring cylinder (1).

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