Polishing device for pipe orifice of four-way reversing valve

Abstract

The utility model relates to the technical field of valve processing, in particular to a polishing device for a four-way reversing valve pipe orifice, which comprises a bottom plate, a first support plate and a second support plate are fixedly mounted on the bottom plate, and a first rotating shaft and a second rotating shaft respectively penetrate through the first support plate and the second support plate. The first rotating shaft and the second rotating shaft are rotationally connected with the first supporting plate and the second supporting plate through a first bearing and a second bearing correspondingly, fixing mechanisms used for clamping the four-way reversing valve are fixedly installed at the ends, close to each other, of the first rotating shaft and the second rotating shaft correspondingly, and a limiting rotating mechanism is arranged at the other end of the first rotating shaft. The limiting rotating mechanism and the first rotating shaft are connected and achieve synchronous rotation, the limiting rotating mechanism and the first supporting plate are detachably fixed or connected in an inserted mode to limit rotation of the first rotating shaft, by arranging the limiting rotating mechanism, the grinding efficiency of the device on the four-way reversing valve can be improved, the clamping frequency of personnel on the four-way reversing valve is reduced, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing, in particular to a grinding device for a pipe orifice of a four-way reversing valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems, from the simplest shut-off valves to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications; Valves can be used to control the flow of various types of fluids such as air, water, steam, powder industry, various corrosive media, mud, oil, liquid metal, and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard custom valves, etc. according to their materials;

[0003] During the production process of the valve, burrs will be generated at the mouth of the valve. If the burrs are not removed, the burrs will scratch the workers' fingers and hinder the installation of the valve. Therefore, the four-way reversing valve needs to be deburred and polished during the production process;

[0004] According to a Chinese patent, a grinding device for a pipe opening of a four-way reversing valve is disclosed, and its announcement number is: CN211490816U. The patent can clamp the lower pipe of the four-way reversing valve by two slide plates in the second positioning structure in cooperation with a spring, and then fix the left and right pipe openings of the four-way reversing valve by a second cylinder in cooperation with a clamping plate, and then grind the upper pipe opening of the four-way reversing valve by a grinding wheel of a grinder;

[0005] However, after the polishing of the pipe opening at one end of the four-way reversing valve is completed in this patent, personnel are required to re-clamp the four-way reversing valve. The re-clamping frequency is high, which affects the polishing efficiency of the device for the four-way reversing valve. Utility Model Content

[0006] In order to solve the problem in the prior art that re-clamping affects the grinding efficiency, the utility model provides a grinding device for a pipe orifice of a four-way reversing valve which improves the grinding efficiency.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A grinding device for a pipe port of a four-way reversing valve comprises a bottom plate, a first support plate and a second support plate are fixedly mounted on the bottom plate, a first rotating shaft and a second rotating shaft are respectively passed through the first support plate and the second support plate, the first rotating shaft and the second rotating shaft are respectively rotatably connected to the first support plate and the second support plate through a first bearing and a second bearing, a fixing mechanism for clamping the four-way reversing valve is fixedly mounted on one end of the first rotating shaft and the second rotating shaft that are close to each other, and a limited rotation mechanism is arranged at the other end of the first rotating shaft;

[0009] The position-limiting rotation mechanism is connected to the first rotating shaft and realizes synchronous rotation. The position-limiting rotation mechanism and the first supporting plate can be detachably fixed or plugged to limit the rotation of the first rotating shaft.

[0010] Furthermore, the limiting rotation mechanism includes a second connecting plate and a U-shaped clamping plate. The second connecting plate is fixedly mounted on the end of the first rotating shaft. A plate hole is formed on the second connecting plate. The U-shaped clamping plate movably passes through the second connecting plate through the plate hole. A clamping groove is formed on the outer side of the first support plate and the second support plate. The U-shaped clamping plate is inserted into the corresponding clamping groove. The limiting rotation mechanism also includes a spring for limiting the U-shaped clamping plate in the clamping groove.

[0011] Furthermore, a limit rod is fixedly installed on the outer side of the second connecting plate, a second rod hole is opened on the U-shaped clamping plate, the limit rod movably passes through the U-shaped clamping plate through the second rod hole, a spring is surrounded by the outer wall of the limit rod, one end of the spring is fixedly installed on the inner side of the U-shaped clamping plate, and the other end of the spring is fixedly installed on the outer side of the second connecting plate.

[0012] Furthermore, a baffle is fixedly mounted on one end of the limiting rod.

[0013] Furthermore, the fixing mechanism includes a fixing plate, which is fixedly mounted on one end of the first rotating shaft and the second rotating shaft respectively, a second hydraulic cylinder is fixedly mounted on one side of the fixing plate, and a hydraulic clamp is fixedly mounted on one end of the piston rod of the second hydraulic cylinder.

[0014] Furthermore, a first connecting plate is fixedly installed at the other end of the second rotating shaft, a first rod hole is opened on the first connecting plate, a U-shaped rod is movably passed through the first rod hole, a rod groove is opened on the outer side of the second support plate, and the U-shaped rod is inserted into the rod groove.

[0015] Furthermore, a hole pad is fixedly installed on the inner wall of the first rod hole, the hole pad is in close contact with the outer wall surface of the U-shaped rod, and the material of the hole pad is wear-resistant rubber.

[0016] Furthermore, the number of the rod grooves and the number of the first rod holes are both two, and the U-shaped rod is adapted to the rod grooves.

[0017] Furthermore, a collection box is fixedly installed on the top of the bottom plate, and a slope pad is fixedly installed on the bottom end of the inner wall of the collection box.

[0018] Furthermore, a fixing frame is fixedly installed on the top of the base plate, a first hydraulic cylinder is fixedly installed on the top of the fixing frame, a piston rod of the first hydraulic cylinder movably passes through the top of the fixing frame, and a motor is fixedly installed on the bottom end of the piston rod of the first hydraulic cylinder, and a grinding disc is fixedly installed on the bottom end of the output shaft of the motor.

[0019] Beneficial effects:

[0020] (1) The grinding device for the pipe orifice of a four-way reversing valve can improve the grinding efficiency of the device for the four-way reversing valve by setting a limit rotation mechanism, reduce the frequency of personnel clamping the four-way reversing valve, save manpower, and solve the problem in the reference document that after the pipe orifice at one end of the four-way reversing valve is polished, personnel need to re-clamp the four-way reversing valve, and the re-clamping frequency is high, which affects the grinding efficiency of the device for the four-way reversing valve;

[0021] (2) The grinding device for the pipe mouth of the four-way reversing valve can collect the debris generated during grinding by providing a collection box, and can guide the debris collected in the collection box by providing a slope pad, so as to make full use of the space of the collection box to avoid the accumulation of debris, and can also play a certain protective role on the four-way reversing valve, so as to prevent the four-way reversing valve from accidentally falling off and colliding with the collection box, thereby playing a buffering role on the four-way reversing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the right side structure of the utility model;

[0025] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 4 For this utility model Figure 2 The enlarged structural diagram of the middle B part;

[0027] Figure 5This is a front sectional structural schematic diagram of the collection box of the utility model.

[0028] 1. Bottom plate; 2. First support plate; 3. Second support plate; 4. First rotating shaft; 5. Second rotating shaft; 6. Fixing mechanism; 7. Limiting rotation mechanism; 8. First connecting plate; 9. U-shaped rod; 10. First rod hole; 11. Hole pad; 12. Fixing frame; 13. Rod slot; 14. Collecting box; 15. Slope pad; 16. First hydraulic cylinder; 17. Motor; 18. Grinding disc; 601. Fixing plate; 602. Second hydraulic cylinder; 603. Hydraulic clamp; 701. Second connecting plate; 702. U-shaped clamping plate; 703. Limiting rod; 704. Second rod hole; 705. Spring; 706. Plate hole; 707. Clamping slot; 708. Baffle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0035] Embodiment 1:

[0036] like Figures 1 to 5 , a grinding device for a pipe port of a four-way reversing valve, comprising a bottom plate 1, a first support plate 2 and a second support plate 3 are fixedly mounted on the bottom plate 1, a first rotating shaft 4 and a second rotating shaft 5 are respectively passed through the first supporting plate 2 and the second supporting plate 3, the first rotating shaft 4 and the second rotating shaft 5 are respectively rotatably connected to the first supporting plate 2 and the second supporting plate 3 through a first bearing and a second bearing, a fixing mechanism 6 for clamping the four-way reversing valve is fixedly mounted on one end of the first rotating shaft 4 and the second rotating shaft 5 close to each other, and a limited rotation mechanism 7 is arranged at the other end of the first rotating shaft 4;

[0037] The position-limiting rotation mechanism 7 is connected to the first rotating shaft 4 and realizes synchronous rotation. The position-limiting rotation mechanism 7 and the first supporting plate 2 can be detachably fixed or plugged to limit the rotation of the first rotating shaft 4 .

[0038] The limiting rotation mechanism 7 includes a second connecting plate 701 and a U-shaped clamping plate 702. The second connecting plate 701 is fixedly mounted on the end of the first rotating shaft 4. A plate hole 706 is provided on the second connecting plate 701. The U-shaped clamping plate 702 movably passes through the second connecting plate 701 through the plate hole 706. A clamping groove 707 is provided on the outer side of the first support plate 2 and the second support plate 3. The U-shaped clamping plate 702 is inserted into the corresponding clamping groove 707. The limiting rotation mechanism 7 also includes a spring 705 for limiting the U-shaped clamping plate 702 in the clamping groove 707.

[0039] A limiting rod 703 is fixedly installed on the outer side of the second connecting plate 701, and a second rod hole 704 is opened on the U-shaped clamping plate 702. The limiting rod 703 movably penetrates the U-shaped clamping plate 702 through the second rod hole 704. A spring 705 is surrounded by the outer wall of the limiting rod 703. One end of the spring 705 is fixedly installed on the inner side of the U-shaped clamping plate 702, and the other end of the spring 705 is fixedly installed on the outer side of the second connecting plate 701. The spring 705 is in a natural state. When the U-shaped clamping plate 702 is pulled outward, the spring 705 is stretched. By setting the limiting rod 703, the spring 705 can be limited to ensure the stability of the spring 705 when compressed.

[0040] A baffle 708 is fixedly mounted on one end of the limiting rod 703. In this embodiment, the baffle 708 is used to block the U-shaped clamping plate 702.

[0041] The fixing mechanism 6 includes a fixing plate 601, which is fixedly mounted on one end of the first rotating shaft 4 and the second rotating shaft 5, and a second hydraulic cylinder 602 is fixedly mounted on one side of the fixing plate 601, and a hydraulic clamp 603 is fixedly mounted on one end of the piston rod of the second hydraulic cylinder 602.

[0042] The other end of the second rotating shaft 5 is fixedly mounted with a first connecting plate 8, a first rod hole 10 is provided on the first connecting plate 8, a U-shaped rod 9 is movably passed through the first rod hole 10, a rod groove 13 is provided on the outer side of the second supporting plate 3, and the U-shaped rod 9 is inserted into the rod groove 13. By providing the U-shaped rod 9, the U-shaped rod 9 can be inserted into the rod groove 13, the first connecting plate 8 is limited, and the stability of the fixing mechanism 6 during operation is ensured.

[0043] A hole pad 11 is fixedly installed on the inner wall of the first rod hole 10, and the hole pad 11 is in close contact with the outer wall surface of the U-shaped rod 9. The material of the hole pad 11 is wear-resistant rubber. By providing the hole pad 11, the tightness of the connection between the U-shaped rod 9 and the first rod hole 10 can be increased, thereby improving the stability of the U-shaped rod 9 on the first connecting plate 8.

[0044] The number of the rod grooves 13 and the number of the first rod holes 10 are both two, and the U-shaped rod 9 is adapted to the rod grooves 13 .

[0045] A fixing frame 12 is fixedly mounted on the top of the base plate 1, a first hydraulic cylinder 16 is fixedly mounted on the top of the fixing frame 12, a piston rod of the first hydraulic cylinder 16 movably passes through the top of the fixing frame 12, and a motor 17 is fixedly mounted on the bottom end of the piston rod of the first hydraulic cylinder 16, and a grinding disc 18 is fixedly mounted on the bottom end of the output shaft of the motor 17.

[0046] Operation process: start the second hydraulic cylinder 602, the second hydraulic cylinder 602 drives the hydraulic clamp 602 to approach the pipe openings on both sides of the four-way reversing valve, and then start the hydraulic clamp 602, so that the hydraulic clamp 603 clamps the four-way reversing valve. When the pipe opening at the top of the four-way reversing valve is polished, the U-shaped clamp 702 can be pulled outward, and the U-shaped clamp 702 stretches the spring 705 to make the U-shaped clamp 702 disengage from the slot 707. When the U-shaped clamp 702 is completely out of the slot 707, the U-shaped clamp 702 no longer limits the second connecting plate 701, and then pull the U-shaped rod 9 to make the U-shaped rod 9 disengage from the rod groove 13, so that the U-shaped rod 9 no longer limits the first connecting plate 8, and then the second connecting plate 701 can be rotated, and the second connecting plate 701 drives the second connecting plate 701 to move. When a rotating shaft 4 rotates, the first rotating shaft 4 drives the fixed four-way reversing valve to flip through the fixing mechanism 6, so that the four-way reversing valve rotates 180°, and then the U-shaped clamping plate 702 is released. The U-shaped clamping plate 702 will be inserted into the clamping groove 707 again under the reset force of the spring 705, and the second connecting plate 701 is limited and fixed. Then, the bottom pipe mouth of the four-way reversing valve can be polished. Through this mechanism, the polishing efficiency of the device for the four-way reversing valve can be improved, the frequency of personnel clamping the four-way reversing valve is reduced, and manpower is saved. This solves the problem that after the polishing of the pipe mouth at one end of the four-way reversing valve is completed, the personnel need to re-clamp the four-way reversing valve, and the re-clamping frequency is high, which affects the polishing efficiency of the device for the four-way reversing valve.

[0047] Embodiment 2:

[0048] On the basis of the first embodiment, the polishing device for the pipe port of the four-way reversing valve provided by the present invention is preferably implemented as follows: Figures 1 to 5 As shown: a collection box 14 is fixedly installed on the top of the bottom plate 1, and a slope pad 15 is fixedly installed on the bottom of the inner wall of the collection box 14. By setting the collection box 14, the debris generated during grinding can be collected, and by setting the slope pad 15, a certain guiding effect can be played on the debris collected in the collection box, and the space of the collection box can be fully utilized to avoid the accumulation of debris, and a certain protection effect can be played on the four-way reversing valve, so as to prevent the four-way reversing valve from accidentally falling off and causing a hard collision with the collection box 14, and play a buffering role on the four-way reversing valve.

[0049] Embodiment three:

[0050] In this embodiment, the spring 705 is located between the baffle 708 and the U-shaped clamping plate 702 and is in a compressed state. The baffle 708 is used to block the spring 705. The rest is the same as in the first embodiment.

[0051] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A grinding device for a four-way reversing valve pipe port, characterized in that: The invention comprises a bottom plate (1), a first support plate (2) and a second support plate (3) are fixedly mounted on the bottom plate (1), a first rotating shaft (4) and a second rotating shaft (5) are respectively passed through the first support plate (2) and the second support plate (3), the first rotating shaft (4) and the second rotating shaft (5) are respectively rotatably connected to the first support plate (2) and the second support plate (3) through a first bearing and a second bearing, a fixing mechanism (6) for clamping a four-way reversing valve is fixedly mounted on one end of the first rotating shaft (4) and the second rotating shaft (5) close to each other, and a limited rotation mechanism (7) is arranged on the other end of the first rotating shaft (4); The position-limiting rotation mechanism (7) is connected to the first rotating shaft (4) and realizes synchronous rotation. The position-limiting rotation mechanism (7) and the first supporting plate (2) can be detachably fixed or plugged to limit the rotation of the first rotating shaft (4).

2. A grinding device for a pipe port of a four-way reversing valve according to claim 1, characterized in that: The position-limiting rotation mechanism (7) comprises a second connecting plate (701) and a U-shaped clamping plate (702); the second connecting plate (701) is fixedly mounted on the end of the first rotating shaft (4); a plate hole (706) is provided on the second connecting plate (701); the U-shaped clamping plate (702) movably passes through the second connecting plate (701) through the plate hole (706); a clamping groove (707) is provided on the outer side of the first supporting plate (2) and the second supporting plate (3); the U-shaped clamping plate (702) is inserted into the corresponding clamping groove (707); and the position-limiting rotation mechanism (7) further comprises a spring (705) for limiting the U-shaped clamping plate (702) in the clamping groove (707).

3. A grinding device for a pipe port of a four-way reversing valve according to claim 2, characterized in that: A limiting rod (703) is fixedly mounted on the outer side of the second connecting plate (701); a second rod hole (704) is provided on the U-shaped clamping plate (702); the limiting rod (703) movably passes through the U-shaped clamping plate (702) through the second rod hole (704); the outer wall of the limiting rod (703) is surrounded by the spring (705); one end of the spring (705) is fixedly mounted on the inner side of the U-shaped clamping plate (702); and the other end of the spring (705) is fixedly mounted on the outer side of the second connecting plate (701).

4. A grinding device for a pipe port of a four-way reversing valve according to claim 3, characterized in that: A baffle (708) is fixedly mounted on one end of the limiting rod (703).

5. A grinding device for a pipe port of a four-way reversing valve according to claim 1, characterized in that: The fixing mechanism (6) comprises a fixing plate (601), wherein the fixing plate (601) is fixedly mounted on one end of the first rotating shaft (4) and the second rotating shaft (5) respectively, a second hydraulic cylinder (602) is fixedly mounted on one side of the fixing plate (601), and a hydraulic clamp (603) is fixedly mounted on one end of the piston rod of the second hydraulic cylinder (602).

6. A grinding device for a pipe port of a four-way reversing valve according to claim 1, characterized in that: A first connecting plate (8) is fixedly mounted on the other end of the second rotating shaft (5), a first rod hole (10) is provided on the first connecting plate (8), a U-shaped rod (9) is movably passed through the first rod hole (10) of the first connecting plate (8), a rod groove (13) is provided on the outer side of the second supporting plate (3), and the U-shaped rod (9) is inserted into the rod groove (13).

7. A grinding device for a pipe port of a four-way reversing valve according to claim 6, characterized in that: A hole pad (11) is fixedly mounted on the inner wall of the first rod hole (10), the hole pad (11) is in close contact with the outer wall surface of the U-shaped rod (9), and the material of the hole pad (11) is wear-resistant rubber.

8. A grinding device for a pipe port of a four-way reversing valve according to claim 7, characterized in that: The number of the rod grooves (13) and the number of the first rod holes (10) are both two, and the U-shaped rod (9) is adapted to the rod grooves (13).

9. A grinding device for a pipe port of a four-way reversing valve according to claim 1, characterized in that: A collection box (14) is fixedly mounted on the top end of the bottom plate (1), and a slope pad (15) is fixedly mounted on the bottom end of the inner wall of the collection box (14).

10. A grinding device for a pipe port of a four-way reversing valve according to claim 1, characterized in that: A fixing frame (12) is fixedly mounted on the top of the base plate (1), a first hydraulic cylinder (16) is fixedly mounted on the top of the fixing frame (12), a piston rod of the first hydraulic cylinder (16) movably passes through the top of the fixing frame (12), a motor (17) is fixedly mounted on the bottom end of the piston rod of the first hydraulic cylinder (16), and a grinding disc (18) is fixedly mounted on the bottom end of the output shaft of the motor (17).

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