Unloading valve group of erecting device

Abstract

The utility model discloses an unloading valve group of an erecting device, and relates to the technical field of unloading valve groups. The quick dismounting valve comprises a main valve body, a quick dismounting mechanism is arranged on the main valve body, and the quick dismounting mechanism comprises a quick dismounting assembly and a limiting assembly; the quick dismounting assembly comprises an oil inlet pipe arranged on the bottom face of the main valve body in a communicating mode, a plurality of second notches are formed in the outer wall of the oil inlet pipe, a connecting pipe is slidably connected to the outer wall of the oil inlet pipe, a plurality of first notches are formed in the outer wall of the connecting pipe, and steel balls are arranged in the first notches. The outer wall of the connecting pipe is fixedly connected with a spring, the outer wall of the connecting pipe is in sliding connection with a sliding barrel, the oil inlet and the connecting pipeline can be quickly disassembled when the unloading valve group is maintained and overhauled through the quick disassembling mechanism, no professional tool is needed, the downtime of equipment is shortened, and the working efficiency is improved. And the use efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unloading valve groups, in particular to an unloading valve group of an erecting device. Background Art

[0002] The unloading valve group is an important component of the hydraulic system. Its main function is to adjust the system pressure and protect against overload by controlling the flow of hydraulic oil. In the erection device, the unloading valve group is usually installed between the hydraulic cylinder and the hydraulic pump to ensure that when the load exceeds the set value, the hydraulic oil can be quickly released to avoid system overload and damage.

[0003] The existing unloading valve group can meet the basic unloading needs in terms of function, but there are some deficiencies in its design, especially in the connection between the oil inlet and the pipeline, which lacks a quick disassembly mechanism. During maintenance and repair, the existing unloading valve group needs to disassemble the oil inlet and connecting pipeline, which usually requires professional tools and a long time, increasing the downtime of the equipment and reducing the efficiency of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a unloading valve group of an erecting device. By being provided with a quick disassembly mechanism, the unloading valve group can be quickly disassembled into an oil inlet and a connecting pipe during maintenance and overhaul without the need for professional tools, thereby reducing the downtime of the equipment and improving the utilization efficiency of the equipment. It solves the problem that the existing unloading valve group needs to disassemble the oil inlet and the connecting pipe during maintenance and overhaul, which usually requires professional tools and a long time, increases the downtime of the equipment, and reduces the utilization efficiency of the equipment.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a unloading valve group of an erecting device, comprising a main valve body, wherein the main valve body is provided with a quick disassembly mechanism, and the quick disassembly mechanism comprises a quick disassembly component and a limit component;

[0007] The quick-disassembly assembly includes an oil inlet pipe connected to the bottom surface of the main valve body, the outer wall of the oil inlet pipe is provided with a plurality of second slots, the outer wall of the oil inlet pipe is slidably connected to a connecting pipe, the outer wall of the connecting pipe is provided with a plurality of first slots, steel balls are provided inside the interior of the plurality of first slots, the outer walls of the plurality of steel balls are in contact with the inner walls of the plurality of second slots, the outer wall of the connecting pipe is fixedly connected to a spring, the outer wall of the connecting pipe is slidably connected to a slide cylinder, and the top end of the spring is fixedly connected to the inner wall of the slide cylinder.

[0008] Furthermore, the limiting assembly includes several first limiting rings fixedly connected to the inner walls of several first slots, the inner walls of several first limiting rings are in contact with the outer walls of several steel balls, the outer wall of the connecting tube is fixedly connected with a second limiting ring, and the bottom end of the second limiting ring is in contact with the inner wall of the slide cylinder.

[0009] Furthermore, a buffer mechanism is provided on the main valve body, and the buffer mechanism includes a first buffer component, a connecting component and a second buffer component;

[0010] The first buffer assembly includes an oil outlet channel provided on the inner wall of the main valve body, the inner wall of the oil outlet channel is provided with a cylindrical notch, the inner wall of the cylindrical notch is fixedly connected to a fixed disk, a plurality of oil outlets are provided on the fixed disk, the outer wall of the fixed disk is slidably connected to a connecting block, the inner wall of the connecting block is slidably connected to a connecting disk, the top surface of the fixed disk is fixedly connected to a first spring, and the top end of the first spring is fixedly connected to the bottom surface of the connecting disk.

[0011] Furthermore, the connecting assembly includes two first connecting rods hinged on the top surface of the fixed plate, the inner wall of the connecting block is slidably connected to two sliders, the two first connecting rods are hinged at one end away from the fixed plate and the bottom surfaces of the two sliders, the bottom surface of the connecting plate is hinged to two second connecting rods, and the two second connecting rods are hinged at one end away from the connecting plate and the top surfaces of the two sliders.

[0012] Furthermore, the second buffer assembly includes two dampers fixedly connected to the inner wall of the connecting block, and the ends of the two dampers close to each other and the sides of the two sliders away from each other are fixedly connected. The inner wall of the connecting block is fixedly connected to two second springs, and the ends of the two second springs close to each other and the sides of the two sliders away from each other are fixedly connected.

[0013] Furthermore, the top surface of the main valve body is fixedly connected to the first valve body, and the main valve body and the left side of the first valve body are fixedly connected by connecting bolts.

[0014] Furthermore, the main valve body is provided with an adjusting mechanism;

[0015] The adjusting mechanism includes a fixing sleeve threadedly connected to the inner wall of the first valve body, the inner wall of the fixing sleeve is threadedly connected to a bolt, the outer wall of the bolt is fixedly connected to a fixing ring, the left side of the fixing ring is fixedly connected to a third spring, the left end of the third spring is fixedly connected to a connecting cone head, the inner wall of the first valve body is provided with a third notch, and the outer wall of the connecting cone head is in contact with the inner wall of the third notch.

[0016] The utility model has the following beneficial effects:

[0017] By setting up a quick disassembly mechanism, when the connected pipe needs to be disassembled, the slide barrel is slid downward and the connecting pipe can be separated from the oil inlet pipe. The setting of the quick disassembly mechanism allows the unloading valve group to quickly disassemble the oil inlet and connecting pipe during maintenance and overhaul without the need for professional tools, thereby reducing the downtime of the equipment and improving the efficiency of the equipment.

[0018] 2. By setting up a buffer mechanism, the oil coming out of the oil outlet channel will impact the connecting plate, and the connecting plate compresses the first spring on the fixed plate, which can buffer part of the impact. The setting of the buffer mechanism can absorb part of the hydraulic shock generated when the hydraulic oil flows, reduce the damage of the hydraulic shock to the internal components, and extend the service life of the unloading valve group.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the buffer mechanism of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the quick disassembly mechanism of the utility model;

[0025] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] Main valve body; 2. Quick disassembly mechanism; 3. Buffer mechanism; 4. Adjustment mechanism; 11. First valve body; 12. Connecting bolt; 21. Oil inlet pipe; 22. Connecting pipe; 23. First notch; 24. Second notch; 25. First limiting ring; 26. Steel ball; 27. Spring; 28. Slide; 29. ​​Second limiting ring; 31. Oil outlet channel; 32. Cylindrical notch; 33. Fixed plate; 34. Oil outlet; 35. Connecting block; 36. First spring; 37. Connecting plate; 38. First connecting rod; 39. Slider; 310. Second connecting rod; 311. Damper; 312. Second spring; 41. Bolt; 42. Fixed sleeve; 43. Fixed ring; 44. Third spring; 45. Connecting cone head; 46. Third notch. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying 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.

[0029] See also Figure 1-5 As shown, the utility model is a unloading valve group of an erecting device, comprising a main valve body 1, on which a quick disassembly mechanism 2 is provided, and the quick disassembly mechanism 2 comprises a quick disassembly component and a limit component;

[0030] The quick-disassembly assembly includes an oil inlet pipe 21 connected to the bottom surface of the main valve body 1. The outer wall of the oil inlet pipe 21 is provided with a plurality of second slots 24. The outer wall of the oil inlet pipe 21 is slidably connected with a connecting pipe 22. The outer wall of the connecting pipe 22 is provided with a plurality of first slots 23. Steel balls 26 are provided inside the plurality of first slots 23. The outer walls of the plurality of steel balls 26 are in contact with the inner walls of the plurality of second slots 24. The outer wall of the connecting pipe 22 is fixedly connected with a spring 27. The outer wall of the connecting pipe 22 is slidably connected with a slide 28. The top end of the spring 27 is fixedly connected to the inner wall of the slide 28.

[0031] Among them Figure 4 and Figure 5 As shown, the limiting assembly includes several first limiting rings 25 fixedly connected to the inner walls of several first slots 23, the inner walls of the several first limiting rings 25 are in contact with the outer walls of several steel balls 26, and the outer wall of the connecting tube 22 is fixedly connected to a second limiting ring 29, and the bottom end of the second limiting ring 29 is in contact with the inner wall of the slide 28.

[0032] By providing a quick disassembly mechanism 2, when it is necessary to disassemble the connected pipe, the slide 28 is slid downward and the spring 27 is compressed. At this time, the steel ball 26 inside the first notch 23 will be out of contact with the inner wall of the second notch 24, and the connecting pipe 22 can be separated from the oil inlet pipe 21. At the same time, due to the action of the first limiting ring 25, the steel ball 26 will not be disengaged from the inside of the first notch 23, and the second limiting ring 29 can prevent the slide 28 from being disengaged. The setting of the quick disassembly mechanism 2 can make the unloading valve group quickly disassemble the oil inlet and the connecting pipe during maintenance and overhaul, and no professional tools are required, which reduces the downtime of the equipment and improves the utilization efficiency of the equipment.

[0033] Among them Figure 2 and Figure 3 As shown, a buffer mechanism 3 is provided on the main valve body 1, and the buffer mechanism 3 includes a first buffer component, a connecting component and a second buffer component;

[0034] The first buffer assembly includes an oil outlet channel 31 provided on the inner wall of the main valve body 1, the inner wall of the oil outlet channel 31 is provided with a cylindrical notch 32, the inner wall of the cylindrical notch 32 is fixedly connected to a fixed disk 33, a plurality of oil outlets 34 are provided on the fixed disk 33, the outer wall of the fixed disk 33 is slidably connected to a connecting block 35, the inner wall of the connecting block 35 is slidably connected to a connecting disk 37, the top surface of the fixed disk 33 is fixedly connected to a first spring 36, and the top end of the first spring 36 is fixedly connected to the bottom surface of the connecting disk 37.

[0035] Among them Figure 3 As shown, the connecting assembly includes two first connecting rods 38 hinged on the top surface of the fixed plate 33, and the inner wall of the connecting block 35 is slidably connected to two sliders 39. The ends of the two first connecting rods 38 away from the fixed plate 33 and the bottom surfaces of the two sliders 39 are hinged, and the bottom surface of the connecting plate 37 is hinged to two second connecting rods 310, and the ends of the two second connecting rods 310 away from the connecting plate 37 and the top surfaces of the two sliders 39 are hinged.

[0036] Among them Figure 3 As shown, the second buffer assembly includes two dampers 311 fixedly connected to the inner wall of the connecting block 35, and the ends of the two dampers 311 that are close to each other and the sides of the two sliders 39 that are away from each other are fixedly connected. The inner wall of the connecting block 35 is fixedly connected to two second springs 312, and the ends of the two second springs 312 that are close to each other are fixedly connected to the sides of the two sliders 39 that are away from each other.

[0037] By providing a buffer mechanism 3, the oil coming out of the oil outlet channel 31 will impact the connecting disk 37, and the connecting disk 37 compresses the first spring 36 on the fixed disk 33, which can buffer part of the impact. At the same time, when the connecting disk 37 and the fixed disk 33 slide on the inner wall of the connecting block 35, through the connection of the first connecting rod 38 and the second connecting rod 310, the slider 39 slides in the connecting block 35 and squeezes the damper 311 and the second spring 312 to further buffer the impact. After that, the oil flows out from the oil outlet 34. The setting of the buffer mechanism 3 can absorb part of the hydraulic shock generated when the hydraulic oil flows, reduce the damage to the internal components caused by the hydraulic shock, and extend the service life of the unloading valve group.

[0038] Among them Figure 1 and Figure 2 As shown, the top surface of the main valve body 1 is fixedly connected to the first valve body 11 , and the left sides of the main valve body 1 and the first valve body 11 are fixedly connected with connecting bolts 12 .

[0039] By providing a first valve body 11, an adjusting mechanism 4 is provided on the inner wall of the first valve body 11, and the adjusting mechanism 4 can manually release pressure, the connecting bolts 12 on the left side of the first valve body 11 and the main valve body 1 can seal the relevant channels to avoid leakage of internal oil, thereby improving the sealing performance of the unloading valve group.

[0040] Among them Figure 2 As shown, the main valve body 1 is provided with an adjusting mechanism 4;

[0041] The adjusting mechanism 4 includes a fixing sleeve 42 threadedly connected to the inner wall of the first valve body 11, the inner wall of the fixing sleeve 42 is threadedly connected to a bolt 41, the outer wall of the bolt 41 is fixedly connected to a fixing ring 43, the left side of the fixing ring 43 is fixedly connected to a third spring 44, the left end of the third spring 44 is fixedly connected to a connecting cone head 45, and the inner wall of the first valve body 11 is provided with a third slot 46, and the outer wall of the connecting cone head 45 is in contact with the inner wall of the third slot 46.

[0042] By providing the adjustment mechanism 4, when manual pressure relief is required, the bolt 41 on the fixed sleeve 42 is rotated, and the fixing ring 43 drives the connecting cone head 45 to disengage from the third notch 46 through the third spring 44, and the oil will pass through the third notch 46. The setting of the adjustment mechanism 4 can manually relieve pressure when necessary, thereby improving the convenience of using the unloading valve group.

[0043] A specific application of this embodiment is as follows: by providing the quick disassembly mechanism 2, when it is necessary to disassemble the connected pipe, the slide 28 is slid downward, the spring 27 is compressed, and the steel ball 26 inside the first notch 23 is disengaged from the inner wall of the second notch 24, and the connecting pipe 22 can be separated from the oil inlet pipe 21. At the same time, due to the action of the first limiting ring 25, the steel ball 26 will not be disengaged from the inside of the first notch 23, and the second limiting ring 29 can prevent the slide 28 from being disengaged. The provision of the quick disassembly mechanism 2 allows the unloading valve group to be quickly disassembled from the oil inlet and the connecting pipe during maintenance and overhaul without the need for specialized tools, thereby reducing equipment downtime and improving equipment utilization efficiency.

[0044] By providing the buffer mechanism 3, the oil coming out of the oil outlet channel 31 will impact the connecting plate 37, and the connecting plate 37 compresses the first spring 36 on the fixed plate 33, which can buffer part of the impact. At the same time, when the connecting plate 37 and the fixed plate 33 slide on the inner wall of the connecting block 35, the slider 39 slides in the connecting block 35 through the connection of the first connecting rod 38 and the second connecting rod 310, and squeezes the damper 311 and the second spring 312, further buffering the impact. After that, the oil flows out from the oil outlet 34. The provision of the buffer mechanism 3 can absorb part of the hydraulic shock generated by the flow of hydraulic oil, reduce the damage to internal components caused by the hydraulic shock, and extend the service life of the unloading valve group;

[0045] By providing a first valve body 11, an adjustment mechanism 4 is provided on the inner wall of the first valve body 11, and the adjustment mechanism 4 can manually release pressure, the connecting bolt 12 on the left side of the first valve body 11 and the main valve body 1 can seal the relevant channels to prevent leakage of internal oil, thereby improving the sealing performance of the unloading valve group;

[0046] By providing the adjustment mechanism 4, when manual pressure relief is required, the bolt 41 on the fixed sleeve 42 is rotated, and the fixing ring 43 drives the connecting cone head 45 to disengage from the third notch 46 through the third spring 44, and the oil will pass through the third notch 46. The setting of the adjustment mechanism 4 can manually relieve pressure when necessary, thereby improving the convenience of using the unloading valve group.

[0047] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A unloading valve assembly for a vertical erection device, comprising a main valve body (1), characterized in that: The main valve body (1) is provided with a quick disassembly mechanism (2), and the quick disassembly mechanism (2) comprises a quick disassembly component and a limit component; The quick-disassembly assembly includes an oil inlet pipe (21) connected to the bottom surface of the main valve body (1), the outer wall of the oil inlet pipe (21) is provided with a plurality of second notches (24), the outer wall of the oil inlet pipe (21) is slidably connected to a connecting pipe (22), the outer wall of the connecting pipe (22) is provided with a plurality of first notches (23), the interiors of the plurality of first notches (23) are provided with steel balls (26), the outer walls of the plurality of steel balls (26) and the inner walls of the plurality of second notches (24) are in contact with each other, the outer wall of the connecting pipe (22) is fixedly connected to a spring (27), the outer wall of the connecting pipe (22) is slidably connected to a slide cylinder (28), and the top end of the spring (27) is fixedly connected to the inner wall of the slide cylinder (28).

2. The unloading valve assembly of the erecting device according to claim 1, characterized in that: The limiting assembly includes a plurality of first limiting rings (25) fixedly connected to the inner walls of the plurality of first notches (23), the inner walls of the plurality of first limiting rings (25) are in contact with the outer walls of the plurality of steel balls (26), the outer wall of the connecting tube (22) is fixedly connected with a second limiting ring (29), and the bottom end of the second limiting ring (29) is in contact with the inner wall of the slide cylinder (28).

3. The unloading valve assembly of the erecting device according to claim 2, characterized in that: The main valve body (1) is provided with a buffer mechanism (3), and the buffer mechanism (3) comprises a first buffer component, a connecting component, and a second buffer component; The first buffer assembly includes an oil outlet channel (31) provided on the inner wall of the main valve body (1), the inner wall of the oil outlet channel (31) is provided with a cylindrical notch (32), the inner wall of the cylindrical notch (32) is fixedly connected to a fixed disk (33), a plurality of oil outlets (34) are provided on the fixed disk (33), the outer wall of the fixed disk (33) is slidably connected to a connecting block (35), the inner wall of the connecting block (35) is slidably connected to a connecting disk (37), the top surface of the fixed disk (33) is fixedly connected to a first spring (36), and the top end of the first spring (36) is fixedly connected to the bottom surface of the connecting disk (37).

4. The unloading valve assembly of the erecting device according to claim 3, characterized in that: The connecting assembly comprises two first connecting rods (38) hinged on the top surface of the fixed disk (33); the inner wall of the connecting block (35) is slidably connected to two sliders (39); one end of the two first connecting rods (38) away from the fixed disk (33) and the bottom surfaces of the two sliders (39) are hinged; the bottom surface of the connecting disk (37) is hinged to two second connecting rods (310); one end of the two second connecting rods (310) away from the connecting disk (37) and the top surfaces of the two sliders (39) are hinged.

5. The unloading valve assembly of the erecting device according to claim 4, characterized in that: The second buffer assembly comprises two dampers (311) fixedly connected to the inner wall of the connecting block (35), wherein the ends of the two dampers (311) close to each other and the sides of the two sliders (39) away from each other are fixedly connected, and the inner wall of the connecting block (35) is fixedly connected to two second springs (312), wherein the ends of the two second springs (312) close to each other and the sides of the two sliders (39) away from each other are fixedly connected.

6. The unloading valve assembly of the erecting device according to claim 5, characterized in that: The top surface of the main valve body (1) is fixedly connected to a first valve body (11), and the left sides of the main valve body (1) and the first valve body (11) are fixedly connected with connecting bolts (12).

7. The unloading valve assembly of the erecting device according to claim 6, characterized in that: The main valve body (1) is provided with an adjusting mechanism (4); The regulating mechanism (4) includes a fixed sleeve (42) threadedly connected to the inner wall of the first valve body (11), the inner wall of the fixed sleeve (42) is threadedly connected to a bolt (41), the outer wall of the bolt (41) is fixedly connected to a fixed ring (43), the left side of the fixed ring (43) is fixedly connected to a third spring (44), the left end of the third spring (44) is fixedly connected to a connecting cone head (45), the inner wall of the first valve body (11) is provided with a third notch (46), and the outer wall of the connecting cone head (45) is in contact with the inner wall of the third notch (46).

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