Adjusting valve easy to maintain

Abstract

The utility model discloses a regulating valve easy to maintain, and relates to the field of regulating valves. The threaded hole does not penetrate through the outer wall of the top of the valve body, so that the bottom of the bolt is not exposed, the accident that the bottom of the bolt is corroded by rainwater is effectively avoided, meanwhile, the protective cover and the rain shade are arranged, in rainy days, the protective cover can shield the rainwater, and the service life of the bolt is prolonged. The phenomenon that the bolt is corroded by rainwater is effectively avoided, the service life of the bolt is further prolonged, under the action of the teeth, the gear ring and the protection mechanism, the operation of screwing and unscrewing the bolt is simpler, and the protection mechanism further has the function of preventing the bolt from loosening due to mistaken touch. The adjusting valve is convenient to disassemble and maintain, has the functions of preventing rainwater from corroding the bolt and avoiding mistaken touch, is more convenient to use and is suitable for being widely popularized.

Description

Technical Field

[0001] The utility model relates to the field of regulating valves, in particular to a regulating valve that is easy to maintain. Background Art

[0002] A regulating valve is a product used to adjust process parameters such as medium flow, pressure, temperature, liquid level, etc. in the field of industrial automation process control. Generally, a regulating valve is used in conjunction with a pipeline. By connecting the regulating valve to the pipeline, the items passing through the regulating valve are controlled by the regulating valve.

[0003] At present, the regulating valves on the market are mainly composed of a valve body and a valve cover (also called a regulating part). The valve body is connected to the pipeline. At the same time, the valve core, valve stem and other components are provided in the valve cover. When in use, the position of the valve core is adjusted by rotating the valve stem to regulate the flow through the valve body.

[0004] However, when assembling the regulating valve mentioned above, multiple sets of bolts are needed to connect the valve body and the valve cover. Since the bolts are mostly directly exposed to the air, the protective coating on the valve bolt installation part will gradually fall off during the use of the valve. When the protective coating falls off, rainwater and other media from the outside will penetrate into the bolt installation hole, causing rust on the bolt installation part. During the subsequent maintenance and disassembly of the regulating valve, the bolts need to be derusted, which increases the maintenance steps of the regulating valve and reduces the maintenance efficiency of the regulating valve. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an easy-to-maintain regulating valve to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easy-to-maintain regulating valve, comprising a valve body, an regulating part and a bolt, wherein the bolt is rotatably installed on the top of the regulating part, a protective cover for shielding the bolt is slidably installed on the outer wall of the regulating part, and the inner wall of the bottom end of the protective cover is in contact with the outer wall of the top of the valve body, and a rain cover for shielding the protective cover is detachably installed on the outer wall of the regulating part, teeth are installed on the outer wall of the bolt, a toothed ring meshing with the teeth is provided in the protective cover, and a protective mechanism for limiting the toothed ring is also provided in the protective cover, so that the toothed ring cannot rotate before the protective cover slides upward.

[0007] By adopting the above technical scheme, the bottom of the bolt is not exposed, thereby effectively avoiding the accident of the bottom of the bolt being corroded by rainwater. At the same time, under the action of the protective cover and the rain cover, the protective cover will block the rainwater in rainy weather, effectively avoiding the phenomenon of rainwater corroding the bolts, further extending the service life of the bolts, and under the action of the teeth, gear ring and protective mechanism, the operation of tightening and loosening the bolts is simpler, and the protective mechanism also has the function of preventing the bolts from loosening due to accidental touch, so that the regulating valve is easy to disassemble and maintain, and has the function of preventing rainwater from corroding the bolts and avoiding accidental touch.

[0008] The utility model is further configured that a threaded hole threadedly connected to the bolt is opened on the top of the valve body, and the threaded hole does not penetrate through the top of the valve body.

[0009] By adopting the above technical solution, it is effectively prevented that rainwater contacts the bottom of the bolt, causing the bolt to rust and the like.

[0010] The utility model is further configured that a plurality of teeth meshing with the gear ring are installed at equal angles on the outer wall of the bolt, and the bolt is configured to be able to rotate only on the adjustment portion.

[0011] By adopting the above technical solution, under the action of the teeth, the multiple groups of bolts will rotate synchronously after the gear ring rotates.

[0012] The utility model is further configured such that the end faces of the protective cover and the rain shield are both designed to be inclined, and after the protective cover slides upward, the top is in contact with the bottom surface of the rain shield, and a plurality of sets of sealing rings are installed at equal intervals on the outer wall of the bottom of the protective cover in contact with the valve body.

[0013] By adopting the above technical solution, both the protective cover and the rain cover can guide rainwater outwards, so that the rainwater slides off, thereby preventing rainwater from accumulating on the protective cover and the rain cover for a long time.

[0014] The utility model is further configured such that the gear ring is fixedly mounted on the inner wall of the protective cover, and the protective mechanism is a tooth groove, a tooth groove corresponding to the gear ring is formed on the top surface of the bottom end of the adjustment portion, and the depth of the tooth groove is half of the thickness of the gear ring.

[0015] By adopting the above technical solution, accidents caused by bolt loosening due to accidental touch during use of the regulating valve can be effectively avoided.

[0016] The utility model is further configured such that the protective mechanism consists of a transmission block, a rotation groove and a clamping groove, a plurality of the transmission blocks are fixedly installed at equal angles on the outer wall of the gear ring, and a rotation groove slidably connected to the transmission block is opened on the inner wall of the protective cover, and the gear ring is movably connected to the protective cover through the transmission block.

[0017] By adopting the above technical solution, the rotation of the gear ring due to accidental touch can be avoided, and the handle of the protective cover can be avoided from being pushed too hard, resulting in the accident of broken teeth of the gear ring.

[0018] The utility model is further configured that the inner wall of the protective cover is provided with a plurality of groups of slots corresponding to the transmission blocks at equal angles, and the slots are communicated with the rotating slots, and the rotating slots are located above the slots.

[0019] By adopting the above technical solution, the transmission block is allowed to enter the slot, and then the protective cover is rotated, so that the transmission block and the protective cover can be rotated synchronously.

[0020] The utility model is further configured such that the corners of the top opening of the slot and the corners of the bottom end of the transmission block are both designed to be beveled.

[0021] By adopting the above technical solution, the difficulty of the transmission block entering the slot is effectively reduced, ensuring that the slot can be smoothly engaged with the transmission block.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] The threaded hole of the utility model does not penetrate the top outer wall of the valve body, so that the bottom of the bolt is not exposed, thereby effectively avoiding the accident of the bottom of the bolt being corroded by rainwater, and at the same time, by providing a protective cover and a rain cover, the protective cover can block rainwater in rainy weather, effectively avoiding the phenomenon of rainwater corroding the bolt, further extending the service life of the bolt, and under the action of the teeth, gear ring and protective mechanism, the operation of tightening and loosening the bolt is simpler, and the protective mechanism also has the function of preventing the bolt from loosening due to accidental touch, so that the present regulating valve is easy to disassemble and maintain, and has the function of preventing rainwater from corroding the bolt and avoiding accidental touch, thereby making the present regulating valve more convenient to use and suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the protective cover and the rain cover after being cut apart in the utility model;

[0026] Figure 3 It is an exploded view of the parts of the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective cover and the rain cover after being cut apart in the second embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the protective cover after partial section in the second embodiment of the utility model.

[0029] In the figure: 1. valve body; 2. adjustment part; 3. bolt; 4. protective cover; 5. rain cover; 6. teeth; 7. gear ring; 8. tooth groove; 9. transmission block; 10. rotation groove; 11. card slot. DETAILED DESCRIPTION

[0030] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes an embodiment of the utility model based on its overall structure.

[0032] Embodiment 1

[0033] An easy-to-maintain regulating valve, such as Figure 1 - Figure 3 As shown, it includes a valve body 1, an adjusting part 2 and a bolt 3, wherein the valve body 1 and the adjusting part 2 are connected by multiple groups of bolts 3, and the bolts 3 are rotatably installed on the top of the adjusting part 2. At the same time, a threaded hole threadedly connected to the bolt 3 is opened on the top of the valve body 1, and the threaded hole does not penetrate the top of the valve body 1, so that the bottom end of the bolt 3 will not leak out of the valve body 1, thereby effectively preventing rainwater from contacting the bottom of the bolt 3, causing rust on the bolt 3, etc., and effectively reducing the loss of the bolt 3 when in use;

[0034] Furthermore, a protective cover 4 for shielding the bolt 3 is slidably installed on the outer wall of the regulating part 2, and the top of the bolt 3 is shielded by the protective cover 4, so that in rainy weather, the protective cover 4 will shield rainwater, effectively avoiding the phenomenon of rainwater corroding the bolt 3, further extending the service life of the bolt 3, and at the same time, the inner wall of the bottom end of the protective cover 4 is in contact with the outer wall of the top of the valve body 1, so that the connection position between the valve body 1 and the regulating part 2 is also protected by the protective cover 4, effectively preventing rainwater from entering between the valve body 1 and the regulating part 2, and further reducing the influence of rainwater on the regulating valve;

[0035] Furthermore, a rain shield 5 for shielding the protective cover 4 is detachably mounted on the outer wall of the adjusting portion 2 (the detachably mounted rain shield 5 mentioned in the present embodiment may be mounted by threads or by a buckle structure, etc., and its mounting method is mainly the prior art and will not be described in detail here). The rain shield 5 will shield the top of the protective cover 4, effectively preventing accidents in which rainwater enters the protective cover 4, and further ensuring the protective effect of the protective cover 4 on the bolt 3;

[0036] A toothed ring 7 meshing with the teeth 6 is provided in the protective cover 4, and a plurality of teeth 6 meshing with the toothed ring 7 are installed at equal angles on the outer wall of the bolt 3, so that when the toothed ring 7 rotates, under the action of the teeth 6, the plurality of bolts 3 start to rotate synchronously, thereby eliminating the operation of tightening the bolts 3 one by one, making it more convenient to disassemble the valve body 1 and the adjusting part 2, and making the regulating valve more convenient to use. Since the bolt 3 is set to rotate only on the adjusting part 2, the toothed ring 7 will always mesh with the teeth 6 when rotating, ensuring that the bolt 3 can be smoothly separated from the threaded hole.

[0037] See also Figure 1 - Figure 3 The end faces of the protective cover 4 and the rain cover 5 are both designed with inclined surfaces, so that after rainwater falls on the protective cover 4 and the rain cover 5, the protective cover 4 and the rain cover 5 will guide the rainwater outward to make the rainwater slide down, and at the same time, a handle is installed on the outer wall of the protective cover 4, so that when it is necessary to pull the protective cover 4 upward, the protective cover 4 can slide upward by pulling the handle upward, which will make the top of the protective cover 4 stick to the bottom surface of the rain cover 5. At this time, the rain cover 5 will limit the protective cover 4, so that the range in which the protective cover 4 can slide upward is limited, and a plurality of sets of sealing rings are evenly spaced and installed on the outer wall of the bottom of the protective cover 4 that sticks to the valve body 1, so that the fitting effect between the protective cover 4 and the outer wall of the valve body 1 is further improved.

[0038] See also Figure 1 - Figure 3 The gear ring 7 is fixedly mounted on the inner wall of the protective cover 4, so that the protective cover 4 will drive the gear ring 7 to move synchronously when it moves. At the same time, a protective mechanism for limiting the gear ring 7 is also provided in the protective cover 4. Because the protective mechanism is a tooth groove 8, a tooth groove 8 corresponding to the gear ring 7 is opened on the top surface of the bottom end of the adjustment part 2, so that when the gear ring 7 slides downward with the protective cover 4, the gear ring 7 will enter the tooth groove 8, causing the gear ring 7 to mesh with the tooth groove 8. At this time, the tooth groove 8 will use its own shape to limit and fix the gear ring 7, so that the protective cover 4 is not moved downward. Before sliding up, the toothed ring 7 cannot rotate, so that when the regulating valve is in use, if someone accidentally touches the handle, the protective cover 4 will not rotate, effectively avoiding the accident of loosening of the bolt 3 due to accidental touch during the use of the regulating valve, and because the depth of the tooth groove 8 is half the thickness of the toothed ring 7, when the toothed ring 7 is located in the tooth groove 8, the toothed ring 7 is still in a state of meshing with the teeth 6, so that the bolt 3 cannot be loosened, effectively improving the angle fixity of the bolt 3 when in use.

[0039] Embodiment 2

[0040] An easy-to-maintain regulating valve, such as Figure 4 and Figure 5As shown, the technical scheme and parts of this embodiment are basically the same as those of the first embodiment, and the technically identical parts will not be described in detail here. The difference is that the protection mechanism in this embodiment is composed of a transmission block 9, a rotation groove 10 and a clamping groove 11, wherein a plurality of transmission blocks 9 are fixedly installed at equal angles on the outer wall of the gear ring 7. Since the transmission block 9 is fixedly connected to the gear ring 7, the gear ring 7 and the transmission block 9 will move synchronously. At the same time, a rotation groove 10 slidably connected to the transmission block 9 is opened on the inner wall of the protective cover 4, so that the gear ring 7 is movably connected to the protective cover 4 through the transmission block 9, so that when the transmission block 9 is located in the rotation groove 10, the protective cover 4 can rotate normally, and when the handle of the protective cover 4 is accidentally touched, the protective cover 4 rotates, but the gear ring 7 will not rotate synchronously with it, and the rotation of the gear ring 7 after the accidental touch is also avoided. In addition, compared with the first embodiment, even if the handle of the protective cover 4 in this embodiment is pushed with great force, the gear ring 7 will not rotate, which effectively avoids the accident of the gear ring 7 breaking due to the strong push of the handle of the protective cover 4;

[0041] For further information, see Figure 4 and Figure 5 , multiple groups of slots 11 corresponding to the transmission block 9 are provided at equal angles on the inner wall of the protective cover 4, and the slots 11 are communicated with the rotation slots 10, so that when the gear ring 7 needs to be rotated, the protective cover 4 is rotated to the position corresponding to the slots 11 and the transmission block 9, and then the protective cover 4 is moved so that the transmission block 9 enters the slots 11, and then the protective cover 4 is rotated, so that the transmission block 9 and the protective cover 4 can be rotated synchronously, and because the rotation slots 10 are located above the slots 11, when the gear ring 7 needs to be rotated, only the rotation slots 10 need to be rotated. The user pulls the handle upward while turning the handle. When the slot 11 corresponds to the position of the transmission block 9, the user pulls the handle upward so that the transmission block 9 can smoothly enter the slot 11. At the same time, the corners of the top opening of the slot 11 and the bottom corners of the transmission block 9 are both beveled, so that when the transmission block 9 enters the slot 11, the bevel angle of the end of the transmission block 9 and the bevel angle of the opening of the slot 11 can guide the transmission block 9, ensuring that the transmission block 9 can smoothly enter the slot 11.

[0042] The working principle of the utility model is as follows: when separating the valve body 1 from the regulating part 2, first pull the protective cover 4 upward until its top is in contact with the rain cover 5, at which time the toothed ring 7 will leave the toothed groove 8, so that the restriction of the toothed ring 7 is released, and then rotate the protective cover 4 so that the toothed ring 7 starts to drive the bolt 3 to rotate through the teeth 6, so that the user can remove multiple bolts 3 simultaneously, and the user can separate the valve body 1 from the regulating part 2 for maintenance or repair;

[0043] Furthermore, when it rains during the use of the valve, since the protective cover 4 covers all the bolts 3, the bolts 3 will not be corroded by external rainwater during use, thereby effectively reducing the probability of them being exposed to the outside and being damaged. In addition, since the rain cover 5 also covers the top of the protective cover 4, it can effectively prevent rainwater from entering the top of the rain cover 5 and corroding the bolts 3, further reducing the probability that the bolts 3 will rust and cannot be removed. In addition, during use, since the tooth ring 7 will mesh with the tooth groove 8, the tooth ring 7 cannot rotate when it is located in the tooth groove 8, thereby effectively avoiding the protective cover 4 from being accidentally touched, causing the tooth ring 7 to suddenly rotate, resulting in the probability of the bolts 3 loosening, making the valve easier to use.

[0044] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An easy-to-maintain regulating valve, comprising a valve body (1), a regulating portion (2) and a bolt (3), characterized in that: The bolt (3) is rotatably mounted on the top of the adjusting portion (2); a protective cover (4) for shielding the bolt (3) is slidably mounted on the outer wall of the adjusting portion (2); the inner wall of the bottom end of the protective cover (4) is in contact with the outer wall of the top of the valve body (1); a rain cover (5) for shielding the protective cover (4) is detachably mounted on the outer wall of the adjusting portion (2); teeth (6) are mounted on the outer wall of the bolt (3); a toothed ring (7) meshing with the teeth (6) is disposed inside the protective cover (4); and a protective mechanism for limiting the toothed ring (7) is also disposed inside the protective cover (4), so that the toothed ring (7) cannot rotate before the protective cover (4) slides upward.

2. The easy-to-maintain regulating valve according to claim 1, characterized in that: The top of the valve body (1) is provided with a threaded hole threadedly connected to the bolt (3), and the threaded hole does not penetrate the top of the valve body (1).

3. The easy-to-maintain regulating valve according to claim 1, characterized in that: The outer wall of the bolt (3) is provided with a plurality of teeth (6) meshing with the gear ring (7) at equal angles, and the bolt (3) is set to be able to rotate only on the adjustment part (2).

4. The easy-to-maintain regulating valve according to claim 1, characterized in that: The end faces of the protective cover (4) and the rain cover (5) are both designed to be inclined, and after the protective cover (4) slides upward, the top is in contact with the bottom of the rain cover (5), and multiple sets of sealing rings are installed at equal intervals on the outer wall of the bottom of the protective cover (4) in contact with the valve body (1).

5. The easy-to-maintain regulating valve according to claim 1, characterized in that: The toothed ring (7) is fixedly mounted on the inner wall of the protective cover (4), and the protective mechanism is a toothed groove (8). A toothed groove (8) corresponding to the toothed ring (7) is provided on the top surface of the bottom end of the adjusting portion (2), and the depth of the toothed groove (8) is half the thickness of the toothed ring (7).

6. The easy-to-maintain regulating valve according to claim 1, characterized in that: The protection mechanism is composed of a transmission block (9), a rotation groove (10) and a clamping groove (11); a plurality of transmission blocks (9) are fixedly mounted at equal angles on the outer wall of the gear ring (7); a rotation groove (10) slidably connected to the transmission block (9) is provided on the inner wall of the protection cover (4); and the gear ring (7) is movably connected to the protection cover (4) via the transmission block (9).

7. The easy-to-maintain regulating valve according to claim 6, characterized in that: The inner wall of the protective cover (4) is provided with a plurality of groups of slots (11) corresponding to the transmission block (9) at equal angles, and the slots (11) are connected to the rotation slots (10), and the rotation slots (10) are located above the slots (11).

8. The easy-to-maintain regulating valve according to claim 7, characterized in that: The corners of the top opening of the slot (11) and the bottom corners of the transmission block (9) are both designed to be beveled.

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