Valve disassembly and assembly device

Abstract

The present invention provides a valve disassembly and assembly device, the valve comprises a valve body, a gate plate arranged on the valve body and a valve stem, a gate plate guide groove is arranged at the bottom of the valve body, the gate plate comprises two sub-gate plates, the two sub-gate plates are mutually buckled and arranged at the bottom end of the valve stem, the valve stem drives the gate plate to rise and fall along the gate plate guide groove, the valve disassembly and assembly device comprises a guide assembly and a guide rail assembly, the guide assembly comprises two guide plates arranged at a relative interval; the guide rail assembly is fixed to the valve body, the two guide plates are arranged in the guide rail assembly, and the first ends of the two guide plates are inserted into the valve body and overlapped with the gate plate guide groove, and the second ends of the two guide plates extend out of the valve body, so as to continue to rise and fall along the guide surfaces of the two guide plates after the gate plate is separated from the gate plate guide groove. The device can extend the gate plate guide groove, so that the gate plate continues to rise and fall along the guide surfaces of the two guide plates after it is separated from the gate plate guide groove, so as to prevent the gate plate from falling when the gate plate is disassembled, and play a supporting role for the gate plate, thereby reducing the difficulty of disassembling and assembling the gate plate.

Description

Technical Field

[0001] The invention belongs to the technical field of valve maintenance and assembly, and in particular relates to a valve disassembly and assembly device. Background Art

[0002] Gate valve is a kind of equipment widely used in the field of fluid transmission. The gate valve is mainly composed of valve body, gate, valve stem, packing, valve cover and handwheel. The gate of the gate valve is the key sealing component. The gate of the gate valve can be divided into wedge gate and parallel gate according to its appearance structure. It can be divided into single gate and double gate according to the structure of the gate.

[0003] The gate of the double-disc gate valve is composed of two symmetrical gates, which are buckled together to form a complete gate valve core. The valve core is hung on the valve stem, and the valve stem drives the valve core to move up and down, thereby realizing the opening and closing of the gate valve. For double-disc gate valves, there are mainly two ways to connect the gate and the valve stem:

[0004] 1) Two gates are hung on the top of the gate bracket, and the gate bracket is connected to the valve stem;

[0005] 2) The two gate plates are buckled at the bottom of the valve stem and hung above the valve stem as a whole.

[0006] In the first connection mode, the gate is installed above the gate frame, and the gate is effectively fixed by the gate frame, so the gate will not fall off;

[0007] In the second connection method, the gate is hung on the top of the valve stem and connected together by relying on the weight of the two gates themselves. For large-diameter medium and high-pressure gate valves (DN300 and above), the gate is large in size and heavy in weight. During the disassembly and assembly of the gate valve, once the gate vibrates slightly, it may cause the gate to fall.

[0008] Generally, the gate valve body is equipped with a gate guide groove. The internal structure of the valve body is as follows: Figure 1 The guide groove is used to guide the gate, but the guide groove is generally only installed in the middle and lower part of the valve body. There is no guide groove in the upper part of the valve body. When the gate is disassembled, when the gate is separated from the guide groove in the valve body, the gate loses its guide. Once the gate vibrates slightly, it may cause the gate to fall.

[0009] For gate valves with vertically installed valve bodies, if the gate plate uses the second connection method, when the gate plate is disengaged from the gate plate guide groove, the gate plate will fall off, and the lower gate plate needs to be supported. The disassembly and assembly of the gate plate is very difficult, and additional lifting and auxiliary support are required.

[0010] In actual production practice, there are also some solutions for the second connection method, such as buckling the two gate plates, tying the two gate plates together with a rope, and then disassembling or assembling them. However, the reliability of this method is low, and there is a risk of the rope buckle detaching and causing the gate plate to fall and be damaged.

[0011] In view of the above problems, it is necessary to propose a valve disassembly and assembly device that is reasonably designed and effectively solves the above problems. Summary of the invention

[0012] The present invention aims to solve at least one of the technical problems existing in the prior art and provides a valve disassembly and assembly device.

[0013] The present invention provides a valve disassembly and assembly device, the valve comprising a valve body, a gate plate and a valve stem arranged on the valve body, a gate plate guide groove being arranged at the bottom of the valve body, the gate plate comprising two sub-gate plates, the two sub-gate plates being buckled with each other and arranged at the bottom end of the valve stem, the valve stem driving the gate plate to rise and fall along the gate plate guide groove, the valve disassembly and assembly device comprising a guide assembly and a guide rail assembly, the guide assembly comprising two guide plates arranged at a relative interval;

[0014] The guide rail assembly is fixed to the valve body, the two guide plates are arranged on the guide rail assembly, and the first ends of the two guide plates are inserted into the valve body and overlap the gate guide groove, and the second ends of the two guide plates extend out of the valve body so that the gate continues to rise and fall along the guide surfaces of the two guide plates after the gate is separated from the gate guide groove.

[0015] Optionally, the guide assembly further includes a first adjustment mechanism;

[0016] The first adjustment mechanism is connected to the two guide plates, and the first adjustment mechanism drives the two guide plates to move on the guide rail assembly to adjust the interval between the two guide plates.

[0017] Optionally, the two guide plates are each provided with at least one first mounting hole penetrating through the thickness thereof at a corresponding position, and the first adjustment mechanism includes at least one first guide fastener and at least one first elastic member;

[0018] The first guide fastener is inserted through the first mounting holes corresponding to the two guide plates, and the first elastic member is clamped between the two guide plates and sleeved on the corresponding first guide fastener.

[0019] Optionally, the guide rail assembly includes a support seat and a guide rail;

[0020] The support seat is fixed to the valve body;

[0021] The guide rail is arranged on the support seat, the guide plate is arranged in the guide rail, and the guide plate translates in the guide rail along the axial direction of the gate plate.

[0022] Optionally, the guide rail assembly further includes a locking mechanism;

[0023] The locking mechanism is arranged on a side of the guide rail away from the guide plate, and is used to fix the guide plate when the guide plate translates to a preset position along the axial direction of the gate plate.

[0024] Optionally, two sides of the support seat away from the guide plate are provided with limited position through grooves;

[0025] The limiting grooves are distributed along the radial direction of the gate plate;

[0026] The guide rail assembly also includes a limiting fastener, which is inserted into the limiting through slot and can move in the limiting through slot so that the guide plate can translate along the radial direction of the gate plate.

[0027] Optionally, the guide assembly further comprises a plurality of rolling elements, and the plurality of rolling elements are arranged on a side of the guide plate facing the gate plate;

[0028] The plurality of rolling elements are spaced and distributed along the length direction of the guide plate.

[0029] Optionally, the valve disassembly and assembly device further includes a top plate and a support plate;

[0030] The top plate is arranged on the outer wall of the gate guide groove, the first end of the support plate is mounted on the top wall of the gate guide groove and fixed to the guide plate, and the second end of the support plate is arranged relative to the top plate and spaced apart.

[0031] Optionally, the valve disassembly and assembly device further includes a second adjustment mechanism;

[0032] The second adjustment mechanism is disposed at the first ends of the two guide plates, and is used to adjust the guide surfaces of the two guide plates so that the guide surfaces of the two guide plates are flush with the inner side surfaces of the gate guide grooves.

[0033] Optionally, the second adjustment mechanism further includes at least one second elastic member and at least one second guide fastener;

[0034] The second end of the support plate is provided with at least one second mounting hole;

[0035] The first end of the second guide fastener is fixed to the top plate, the second end of the second guide fastener is passed through the second mounting hole, and the second elastic member is clamped between the top plate and the support plate and sleeved on the corresponding second guide fastener.

[0036] The valve disassembly and assembly device of the present invention comprises a guide assembly and a guide rail assembly, wherein the guide assembly comprises two guide plates arranged at a relative interval; the guide rail assembly is fixed to the valve body, the two guide plates are arranged on the guide rail assembly, and the first ends of the two guide plates are inserted into the valve body and overlapped with the gate guide groove, and the second ends of the two guide plates extend out of the valve body so that the gate continues to be lifted and lowered along the guide surfaces of the two guide plates after the gate is separated from the gate guide groove. The gate guide groove can be extended so that the gate continues to be lifted and lowered along the guide surfaces of the two guide plates after the gate is separated from the gate guide groove, thereby preventing the gate from falling when the gate is disassembled, and supporting the gate, thereby reducing the difficulty of disassembling and assembling the gate.

[0037] The valve disassembly and assembly device of the present invention is flexible and applicable, and the structure used in the disassembly and assembly device can be adjusted according to the use conditions. The disassembly and assembly device is designed as an integral structure, which is quick and convenient to assemble and can be used for valve bodies installed horizontally or vertically. It can assist operators in disassembling and assembling the gate plate. The auxiliary operation device provided by the present invention ensures that the gate plate will not fall during operation, and can ensure the safety of personnel and equipment. The valve disassembly and assembly device adopts an on-site assembly and adjustment method, and its structural design can meet the use requirements of horizontally installed and vertically installed gate valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic structural diagram of a valve according to an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of assembling a valve disassembling device and a valve according to another embodiment of the present invention;

[0040] Figure 3 This is a structural schematic diagram of a valve disassembly and assembly device in another embodiment of the present invention;

[0041] Figure 4 It is a structural schematic diagram of a part of the second adjustment mechanism in another embodiment of the present invention;

[0042] Figure 5 The figure is a schematic diagram of assembling a valve disassembling and assembling device and a valve in another embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the present invention provides a valve disassembly and assembly device 100, the valve 200 includes a valve body 210, a gate plate 220 and a valve stem 230 disposed on the valve body 210, a gate plate guide groove 240 is disposed at the bottom of the valve body 210, the gate plate 220 includes two sub-gate plates, the two sub-gate plates are mutually buckled and disposed at the bottom end of the valve stem 230, and the valve stem 230 drives the gate plate 220 to rise and fall along the gate plate guide groove 240. The valve disassembly and assembly device 100 includes a guide assembly 110 and a guide rail assembly 120, and the guide assembly 110 includes two guide plates 111 disposed relatively spaced apart.

[0045] The guide rail assembly 120 is fixed to the valve body 210, the gate guide groove 240 is arranged on the guide rail assembly 120, and the first ends of the two guide plates 111 are inserted into the valve body 210 and overlap with the gate guide groove 240, and the second ends of the two guide plates 111 extend out of the valve body 210 so that the gate 220 continues to rise and fall along the guide surfaces of the two guide plates 111 after the gate 220 is separated from the gate guide groove 240.

[0046] It should be noted that, in this embodiment, the guide assembly 110 and the guide rail assembly 120 are split and can be assembled on site. The assembly is quick and convenient and can be used for both horizontally installed and vertically installed valve bodies.

[0047] On the one hand, the guide rail assembly 120 can fix the guide plate 111, and on the other hand, the guide plate 111 can move axially and radially on the guide rail assembly 120 along the gate plate 220. According to the thickness of the gate plate 220 of different specifications, the position of the guide plate 111 is adjusted so that the first end of the guide plate 111 overlaps with the gate plate guide groove 240.

[0048] It should be noted that, in this embodiment, two gate guide grooves 240 are provided at the bottom of the valve body 210, and the gate 220 is slidably provided between the two gate guide grooves 240 at both ends in the radial direction, and the valve stem 230 drives the gate 220 to rise and fall along the two gate guide grooves 240. Accordingly, the valve disassembly and assembly device 100 is provided with two guide assemblies 110, one guide assembly 110 corresponds to one gate guide groove 240, and specifically, each guide assembly 110 is provided with two guide plates 111, and the two guide plates 111 are overlapped with the two side walls of the gate guide groove 240 respectively, so as to further extend the gate guide groove 240.

[0049] When in use, the guide rail assembly 120 is fixedly arranged on the outside of the valve body 210, and then the two guide plates 111 of the guide assembly 110 are installed on the guide rail assembly 120, wherein the first ends of the two guide plates 111 are inserted into the valve body 210 and overlap the gate guide groove 240, and the second ends of the two guide plates 111 extend out of the valve body 210, so that after the gate 220 is separated from the gate guide groove 240, it continues to rise and fall along the guide surfaces of the two guide plates 111. In other words, the gate guide groove 240 is extended by adding the guide plates 111.

[0050] The valve disassembly and assembly device of the present invention has two guide plates whose first ends are inserted into the valve body and overlap the gate guide groove, and the second ends of the two guide plates extend out of the valve body, so that the gate guide groove can be extended, so that the gate continues to rise and fall along the guide surfaces of the two guide plates after being separated from the gate guide groove, thereby preventing the gate from falling when disassembling the gate, and supporting the gate, thereby reducing the difficulty of disassembling and assembling the gate.

[0051] The valve disassembly and assembly device of the present invention is flexible and applicable, and the structure used in the disassembly and assembly device can be adjusted according to the use conditions. The disassembly and assembly device is designed as an integral structure, which is quick and convenient to assemble and can be used for valve bodies installed horizontally or vertically. It can assist operators in disassembling and assembling the gate plate. The auxiliary operation device provided by the present invention ensures that the gate plate will not fall during operation, and can ensure the safety of personnel and equipment. The valve disassembly and assembly device adopts an on-site assembly and adjustment method, and its structural design can meet the use requirements of horizontally installed and vertically installed gate valves.

[0052] For example, Figure 3 As shown, the guide assembly 110 further includes a first adjustment mechanism 112 , which is connected to the two guide plates 111 . The first adjustment mechanism 112 drives the two guide plates 111 to move on the guide rail assembly 120 to adjust the interval between the two guide plates 111 .

[0053] In the above embodiments, according to the thickness of the gate plate 220 and the width of the gate plate guide groove 240, the distance between the two guide plates 111 is adjusted by the first adjusting mechanism 112 so that the first end of the guide plate 111 overlaps with the gate plate guide groove 240. The first adjusting mechanism 112 can make the valve disassembly and assembly device 100 adapt to gate plates 220 of different thicknesses.

[0054] For example, Figure 3 and Figure 5As shown, at least one first mounting hole (not shown) penetrating the thickness of the two guide plates 111 is provided at corresponding positions of the two guide plates 111, and the first adjustment mechanism 112 includes at least one first guide fastener 112a and at least one first elastic member 112b. The first guide fastener 112a is inserted through the first mounting holes corresponding to the two guide plates 111, and the first elastic member 112b is sandwiched between the two guide plates 111 and sleeved on the corresponding first guide fastener 112a.

[0055] It should be noted that if Figure 3 and Figure 5 As shown, in this embodiment, two first mounting holes (not shown in the figure) are provided at corresponding positions of the two guide plates 111 and penetrate the thickness thereof. Accordingly, the first adjustment mechanism 112 includes two first guide fasteners 112a and two first elastic members 112b. The number of the first mounting holes is not specifically limited in this embodiment and can be selected according to actual needs.

[0056] In this embodiment, the first mounting hole is a threaded hole, the first guide fastener 112a is a guide bolt, and the first elastic member 112b is a spring. Of course, this embodiment does not specifically limit the specific structure of the first mounting hole, the first guide fastener 112a and the first elastic member 112b, and can be selected according to actual needs.

[0057] In the above embodiments, after measuring the size of the gate guide groove 240, the distance between the two guide plates 111 can be adjusted by adjusting the first guide fastener 112a to obtain the corresponding guide size, wherein the two guide plates 111 can be naturally separated by the elastic force of the first elastic member 112b.

[0058] For example, Figure 3 and Figure 5 As shown, the guide rail assembly 120 includes a support seat 121 and a guide rail 122. The support seat 121 is fixed to the valve body 210. The guide rail 122 is arranged on the support seat 121, and a guide plate 111 is arranged in the guide rail 122. The guide plate 111 translates in the guide rail 122 along the axial direction of the gate plate 220.

[0059] Specifically, Figure 1 , Figure 3 and Figure 5As shown, the support seat 121 is fixed on the outside of the valve body 210. In this embodiment, the support seat 121 can be positioned and fastened by the bolt holes 221 and bolts on the upper side of the valve body 210. Of course, other methods can also be used for fixing. Then the guide rail 122 is set on the support seat 121. The length direction of the guide rail 122 is consistent with the axial direction of the gate plate 220. The two guide plates 111 are slidably set in the guide rail 122. In other words, when the first adjustment mechanism 112 adjusts the distance between the two guide plates 111, the two guide plates 111 can translate in the guide rail 122 along the axial direction of the gate plate 220.

[0060] It should be noted that, in this embodiment, the portion of the guide plate 111 installed in the guide rail 122 is configured as a dovetail groove structure, and the guide portion of the guide rail 122 is also configured as a dovetail groove structure corresponding to the guide plate 111, so that the guide plate 111 can slide freely in the guide rail 122, and the distance between the two guide plates 111 can be adjusted according to the thickness of the gate plate 220. Of course, the guide portion of the guide rail 122 can also adopt other structures, which are not specifically limited in this embodiment.

[0061] For example, Figure 5 As shown, the guide rail assembly 120 further includes a locking mechanism 123. The locking mechanism 123 is disposed on a side of the guide rail 122 away from the guide plate 111, and is used to fix the guide plate 111 when the guide plate 111 translates to a preset position along the axial direction of the gate plate 220.

[0062] Specifically, the locking structure 123 includes two locking blocks 123a and two locking block fasteners 123b. The guide rail 122 is provided with two long strip grooves 122a arranged along the length direction of the guide rail 122, and the locking block fasteners 123b can be inserted into the long strip grooves, and the locking block fasteners 123b can move back and forth in the long strip grooves 122a.

[0063] The two locking blocks 123a are respectively arranged on the side of the guide rail 122 away from the guide plate 111. When the distance between the two guide plates 111 is adjusted, the guide plates 111 are prevented from sliding out of position. The two locking blocks 123a are abutted against the two guide plates 111, and then the locking block fasteners 123b are inserted into the long strip groove 122a. The locking block 123a is positioned by the locking block fasteners 123b, thereby realizing the positioning adjustment of the position of the guide plate 111.

[0064] It should be noted that in this embodiment, the shape of the locking block 123a is also a dovetail groove structure, and the locking block 123a can slide back and forth in the guide rail 122. The locking block fastener 123b uses a locking block fastening bolt, and of course other methods can be used, which is not specifically limited in this embodiment.

[0065] In the above embodiment, the locking mechanism 123 can be used to fix the guide plates 111 after the distance between the two guide plates 111 is adjusted, thereby preventing the guide plates 111 from sliding out of position.

[0066] For example, Figure 5 As shown, the support seat 121 is provided with limiting grooves 121 a on both sides away from the guide plate 111 , and the limiting grooves 121 a are distributed along the radial direction of the gate plate 220 .

[0067] The guide rail assembly 120 further includes a limiting fastener 124, which is inserted into the limiting slot 121a and can move in the limiting slot 121a. The support seat 121 can translate along the radial direction of the gate plate 220 according to the position of the bolt hole 211 on the valve body 210, so that the guide plate 111 can translate along the radial direction of the gate plate 220. When the guide plate 111 translates to a preset position, the limiting fastener 124 is sequentially inserted into the limiting slot 121a and the bolt hole 211 to fasten the support seat 121.

[0068] It should be noted that in this embodiment, the limiting fastener 124 is a limiting bolt, and of course other structures can also be used, which is not specifically limited in this embodiment. The limiting slot 121a is a long strip slot, and of course other shapes of slots can also be used, which is not specifically limited in this embodiment.

[0069] In the above embodiments, through the cooperation of the limiting through groove 121a and the limiting fastener 124, the guide plate 111 can be translated along the radial direction of the gate plate 220, and then the guide plate 111 can be adjusted to the corresponding position so that the first end of the guide plate 111 overlaps with the gate plate guide groove 240, and then the gate plate 220 continues to rise and fall along the guide surfaces of the two guide plates 111.

[0070] For example, Figure 3 As shown, the guide assembly 110 further includes a plurality of rolling elements 113, which are arranged on a side of the guide plate 111 facing the gate plate 220. The plurality of rolling elements 113 are arranged in a spaced distribution along the length direction of the guide plate 111.

[0071] Specifically, in this embodiment, a groove 111a is firstly provided on the side of the guide plate 111 facing the gate plate 220, and a plurality of rolling elements 113 are installed in the groove 111a at intervals, wherein the side of the plurality of rolling elements 113 facing the guide plate 111 protrudes from the guide plate 111. The rolling elements 113 may be rollers or balls, etc., which are not specifically limited in this embodiment.

[0072] In the above embodiments, when the gate plate 111 is lifted and lowered along the guide surface between the two guide plates 111 , the gate plate 111 can contact the multiple rolling elements 113 , thereby reducing the friction resistance between the guide plate 111 and the gate plate 220 , so that the gate plate 220 can move smoothly in the guide plate 111 .

[0073] For example, Figure 3 and Figure 4 As shown, the valve disassembly and assembly device 100 further includes a top plate 130 and a support plate 140. The top plate 130 is disposed on the outer wall of the gate guide groove 240, the first end of the support plate 140 is mounted on the top wall of the gate guide groove 240 and fixed to the guide plate 111, and the second end of the support plate 140 is disposed relatively spaced from the top plate 130. In this embodiment, the support plate 140 can be fixed by a threaded screw, or by other methods, which are not limited in this embodiment.

[0074] In the above embodiments, the top plate 130 and the support plate 140 fix the overlapping position when the first end of the guide plate 111 overlaps with the gate guide groove 240 to prevent unstable misalignment between the guide plate 111 and the gate guide groove 240.

[0075] For example, Figure 3 As shown, the valve disassembly and assembly device 100 also includes a second adjustment mechanism 150, which is arranged at the first end of the two guide plates 111, and the second adjustment mechanism 150 is used to adjust the guide surfaces of the two guide plates 111 so that the guide surfaces of the two guide plates 111 are flush with the inner side surfaces of the gate guide groove 240.

[0076] In the above embodiments, considering that the widths of the gate guide groove 240 vary, a second adjustment mechanism 150 is disposed on the first end of the guide plate 111 , which can improve the application range of the valve disassembly and assembly device 100 .

[0077] For example, Figure 3 and Figure 4 As shown, the second adjustment mechanism 150 includes at least one second elastic member 151 and at least one second guide fastener 152. In this embodiment, the second adjustment mechanism 150 includes four second elastic members 151 and four second guide fasteners 152, and the number of the second elastic members 151 and the second guide fasteners 152 is not specifically limited in this embodiment.

[0078] The second end of the support plate 140 is provided with at least one second mounting hole (not shown in the figure), the first end of the second guide fastener 152 is fixed to the top plate 130, the second end of the second guide fastener 152 is passed through the second mounting hole, and the second elastic member 151 is sandwiched between the top plate 130 and the support plate 140 and sleeved on the corresponding second guide fastener 152. In other words, the top plate 130 abuts against the outer wall of the gate guide groove 240, and the top plate 130 can move along the length direction of the second guide fastener 152, thereby adjusting the guide surfaces of the two guide plates 111.

[0079] When the distance between the two guide plates 111 is adjusted by the first adjustment structure 112, the first end of the guide plate 111 can be overlapped above the gate guide groove 240. At this time, the position of the guide plate 111 is finely adjusted by adjusting the second adjustment mechanism 150. The top plate 130 abuts against the outer wall of the gate guide groove 240, and the top plate 130 moves along the second guide fastener 152 toward the second end of the support plate 140. At this time, the second elastic member 151 is compressed until the guide surfaces of the two guide plates 111 are flush with the inner side surface of the gate guide groove 240, and the positioning is completed. At this time, the position of the top plate 130 is fastened by the second guide fastener 152.

[0080] It should be noted that, in this embodiment, the second guide fastener 152 is a guide bolt, and other fasteners may also be used, which is not limited in this embodiment. The second elastic member 134 is a spring, and other elastic members may also be used, which is not limited in this embodiment.

[0081] In the above embodiments, by cooperating with the second elastic member 151 and the second guide fastener 152, the distance between the guide plates 111 can be fine-tuned according to the thickness of the gate guide groove 240, so that the guide surfaces of the two guide plates 111 are flush with the inner side surfaces of the gate guide groove 240, and the overlapping positions of the guide plates 111 and the gate guide groove 240 are fixed, thereby improving the application scope of the valve disassembly and assembly device 100.

[0082] The valve disassembly and assembly device 100 adopts the method of on-site assembly and adjustment, and its structural design can meet the use requirements of horizontal and vertical installation of gate valves. The assembly effect of vertical installation is as follows: Figure 2 As shown, the horizontal installation effect is as follows Figure 5 shown.

[0083] like Figures 1 to 5 As shown, the method of installing and adjusting the valve disassembling device 100 is as follows:

[0084] Step 1: Measure the spacing between the bolt holes above the valve body 210, select a suitable guide rail assembly 120, and first install and position the guide assembly 110 and the guide rail assembly 120 on one side.

[0085] Step 2: Install the guide plate 111 of the guide assembly 110 into the dovetail groove of the guide rail 122.

[0086] Step 3: Install the first elastic member 112b and the first guide fastener 112a between the guide plates 111 of the guide assembly 110.

[0087] Step 4: Insert the assembled guide assembly 110 into the valve body 210 along the center line of the gate guide groove 240 of the valve body 210 so that the guide plate 111 of the guide assembly 110 overlaps above the gate guide groove 240.

[0088] Step 5: Adjust the position of the guide assembly 110 so that it is parallel to the inlet and outlet directions of the valve, and the guide rail assemblies 120 on both sides are symmetrical along the center line of the valve.

[0089] Step 6: Tighten the fastening bolts of the guide rail assembly 120 to fix the guide rail assembly 120 above the valve body 210.

[0090] Step 7: First, position and adjust the guide assembly 110 on one side, position the guide plate 111 on this side, overlap the lower part of the guide plate 111 on the gate guide groove 240, adjust the position of the guide plate 111 by the second adjustment mechanism 150, and at the same time, the second elastic member 151 spring is compressed until the guide surface of the guide plate 111 is parallel to the inner side surface of the gate guide groove 240, and the positioning is completed. After the positioning is completed, the second fastener 134 is tightened. The locking block 123a is attached to the guide plate 111, and the guide plate 111 is limited. The locking block 123a is fixed on the guide rail 122 by the locking block 123a, the locking block fastener 123b and the long strip groove 122a.

[0091] Step 8: Use the same method to position the guide assembly on the other side.

[0092] Step 9: After positioning is completed, tighten the first guide fastener 112a, so that the installation and positioning of the guide assembly 110 and the guide rail assembly 120 on one side are completed.

[0093] In step 10, the same method is used to complete the installation and positioning operations of the guide assembly 100 and the guide rail assembly 120 on the other side.

[0094] Step 11: insert the gate plate 220 into the valve body 210 and remove the gate plate 220 from the valve body 210 along the two guide plates 111 . The gate plate 220 can move smoothly in the valve disassembly device 100 , and the valve disassembly device 100 can provide guidance and support for the gate plate 220 .

[0095] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A valve disassembly and assembly device, the valve comprising a valve body, a gate plate and a valve stem arranged on the valve body, a gate plate guide groove being arranged at the bottom of the valve body, the gate plate comprising two sub-gate plates, the two sub-gate plates being buckled with each other and arranged at the bottom end of the valve stem, the valve stem driving the gate plate to rise and fall along the gate plate guide groove, characterized in that: The valve disassembly and assembly device comprises a guide assembly and a guide rail assembly, wherein the guide assembly comprises two guide plates arranged relatively spaced apart; The guide rail assembly is fixed to the valve body, the two guide plates are arranged on the guide rail assembly, and the first ends of the two guide plates are inserted into the valve body and overlap the gate guide groove, and the second ends of the two guide plates extend out of the valve body so that the gate continues to rise and fall along the guide surfaces of the two guide plates after the gate is separated from the gate guide groove; wherein, The guide assembly also includes a first adjustment mechanism; The first adjustment mechanism is connected to the two guide plates, and the first adjustment mechanism drives the two guide plates to move on the guide rail assembly to adjust the interval between the two guide plates; The guide rail assembly comprises a support seat and a guide rail; The support seat is fixed to the valve body; The guide rail is arranged on the support seat, the guide plate is arranged in the guide rail, and the guide plate translates in the guide rail along the axial direction of the gate plate; The guide rail assembly also includes a locking mechanism; The locking mechanism is arranged on a side of the guide rail away from the guide plate, and is used to fix the guide plate when the guide plate is translated to a preset position along the axial direction of the gate plate; The valve disassembly and assembly device also includes a top plate and a support plate; The top plate is arranged on the outer wall of the gate guide groove, the first end of the support plate is laid on the top wall of the gate guide groove and fixed to the guide plate, and the second end of the support plate is arranged relative to the top plate and spaced apart; The valve disassembly and assembly device also includes a second adjustment mechanism; The second adjustment mechanism is disposed at the first ends of the two guide plates, and is used to adjust the guide surfaces of the two guide plates so that the guide surfaces of the two guide plates are flush with the inner side surfaces of the gate guide grooves.

2. The valve disassembly and assembly device according to claim 1, characterized in that: The two guide plates are each provided with at least one first mounting hole penetrating through the thickness thereof at a corresponding position, and the first adjustment mechanism comprises at least one first guide fastener and at least one first elastic member; The first guide fastener is inserted through the first mounting holes corresponding to the two guide plates, and the first elastic member is clamped between the two guide plates and sleeved on the corresponding first guide fastener.

3. The valve disassembly and assembly device according to claim 1, characterized in that: The support seat is provided with limited position through grooves on both sides away from the guide plate; The limiting grooves are distributed along the radial direction of the gate plate; The guide rail assembly also includes a limiting fastener, which is inserted into the limiting through slot and can move in the limiting through slot so that the guide plate can translate along the radial direction of the gate plate.

4. The valve disassembly and assembly device according to any one of claims 1 to 3, characterized in that: The guide assembly further comprises a plurality of rolling elements, and the plurality of rolling elements are arranged on a side of the guide plate facing the gate plate; The plurality of rolling elements are spaced and distributed along the length direction of the guide plate.

5. The valve disassembly and assembly device according to any one of claims 1 to 3, characterized in that: The second adjustment mechanism includes at least one second elastic member and at least one second guide fastener; The second end of the support plate is provided with at least one second mounting hole; The first end of the second guide fastener is fixed to the top plate, the second end of the second guide fastener is passed through the second mounting hole, and the second elastic member is clamped between the top plate and the support plate and sleeved on the corresponding second guide fastener.

Images