Directly-buried balance valve with split dial
By designing a valve adjusting wrench with a split dial and pointer assembly for a buried balance valve, the problems of difficult operation and precise adjustment of traditional buried valves have been solved, and precise adjustment of downhole valves has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SONGTIANCHENG TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional direct-buried valves have their scales set directly on the valve body, making operation difficult after burial, resulting in low adjustment efficiency and easy misjudgment. Existing wrench structures cannot achieve precise valve adjustment.
Design a valve adjusting wrench for a direct-buried balance valve with a split dial. The dial is adapted to the manhole cover, the support plate is clipped onto the manhole cover, and the pointer assembly is fixedly connected to the wrench. The valve can be precisely adjusted by observing the pointer angle.
It enables precise valve adjustment in the downhole environment, improves operational efficiency, avoids misjudgment, and meets the requirements for precise valve adjustment.
Smart Images

Figure CN224407446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field, specifically to a valve adjusting wrench with a split-type dial for a direct-buried balance valve. Background Technology
[0002] In the heating industry, PE direct-buried balancing valves are widely used due to their strong corrosion resistance, good sealing performance, precise adjustment, convenient installation and long service life.
[0003] Traditional buried valves have their markings directly on the valve body. After burial, operators must open the manhole cover and observe the markings through a narrow space, resulting in low adjustment efficiency and a high risk of misjudgment. Existing balancing valves have simple, single-function wrenches that can only open or close, failing to meet the need for precise valve adjustment and causing inconvenience. Utility Model Content
[0004] Therefore, this utility model provides a valve adjusting wrench with a split-type dial for a direct-buried balance valve, to solve the problem that the wrench structure of the above-mentioned technology cannot meet the needs of precise valve adjustment and is inconvenient to use.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A valve adjusting wrench for a direct-buried balance valve with a split-type dial, comprising a dial and a pointer assembly;
[0007] The outer diameter of the dial is adapted to the diameter of the net opening of the well seat on the manhole cover. The top of the dial is provided with a scale line representing the rotation angle of the wrench. The top of the dial extends outward to form an annular support plate. The outer diameter of the support plate is larger than the diameter of the net opening of the well seat on the manhole cover. The side wall of the dial is provided with a notch, and a strip groove is provided at the position corresponding to the notch on the top of the dial. The width of the strip groove is adapted to the diameter of the wrench.
[0008] The pointer component is mounted on the wrench and is fixedly connected to the wrench.
[0009] Optionally, a reinforcing rib is provided between the bottom of the support plate and the side wall of the dial.
[0010] Optionally, multiple reinforcing ribs are provided, and the multiple reinforcing ribs are distributed in a circular array along the periphery of the dial.
[0011] Optionally, the fixed connection between the pointer assembly and the wrench is a detachable fixed connection.
[0012] Optionally, the pointer assembly includes two arc-shaped clips adapted to the shape of a wrench and a pointer. The arc-shaped clips are provided with lugs at both ends. The two arc-shaped clips are fixed by a bolt assembly installed between the lugs at both ends. The pointer is horizontally fixed to the outside of one of the arc-shaped clips, and the direction of the pointer is set along the extension line of the diameter of the arc-shaped clip.
[0013] This utility model has at least the following beneficial effects:
[0014] This invention features a dial and a pointer assembly. The dial can be placed inside the clear opening of the manhole cover and secured to the manhole cover by a support plate on top. The notch and groove on the dial allow it to fit onto a wrench. By aligning the pointer assembly on the wrench with the scale lines on the dial, the angle of rotation of the valve can be determined by observing the angle of rotation of the pointer assembly during valve rotation. This enables precise valve adjustment and facilitates convenient use. Attached Figure Description
[0015] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.
[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0017] Figure 1 This is a first-view structural schematic diagram of an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the installation state structure of a manhole cover according to an embodiment of the present invention;
[0019] Figure 3 This is a second-view structural schematic diagram of an embodiment of the present invention;
[0020] Figure 4 This is a third-view structural diagram of an embodiment of the present invention.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Dial; 2. Support plate; 3. Reinforcing rib; 4. Gradient lines; 5. Manhole cover; 6. Arc-shaped clamp; 7. Hoop lug; 8. Pointer. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.
[0025] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.
[0026] like Figures 1-4 As shown, this utility model discloses a direct-buried balance valve adjusting wrench with a split dial 1, including a dial 1 and a pointer 8 assembly.
[0027] The outer diameter of the dial 1 is adapted to the diameter of the net opening of the well seat on the manhole cover 5. The top of the dial 1 is provided with a scale line 4 representing the rotation angle of the wrench. The top of the dial 1 extends outward to form an annular support plate 2. The outer diameter of the support plate 2 is larger than the diameter of the net opening of the well seat on the manhole cover 5. The side wall of the dial 1 is provided with a notch, and a strip groove is provided at the position corresponding to the notch on the top of the dial 1. The width of the strip groove is adapted to the diameter of the wrench.
[0028] The pointer 8 component is disposed on the wrench, and the pointer 8 component is fixedly connected to the wrench.
[0029] The aforementioned dial 1 is set on a cylindrical shell structure, and the outer diameter of the dial 1 is adapted to the diameter of the net opening of the well seat on the well cover 5, so that it can be placed in the net opening of the well seat. The top of the dial 1 is provided with an annular support plate 2. The support plate 2 is an annular structure extending outward from the top of the dial 1. The support plate 2 is integrally formed with the dial plate, and the outer diameter of the support plate 2 is larger than the diameter of the net opening of the well seat on the well cover 5, so that the support plate 2 can be stuck on the surface of the well cover 5 (stuck in the axial direction and will not slide downward). The upper surface of the dial 1 is provided with a scale line 4. The scale line 4 is an angle scale line 4, which is used to represent the angle of rotation of the wrench, that is, the angle of valve opening.
[0030] To facilitate the alignment of the pointer 8 component on the wrench with the scale line 4 on the dial 1, a notch is made on one side of the dial 1, and a groove is made on the top of the dial 1, so that the wrench can be inserted into the axis of the dial 1 from one side. At the same time, one end of the groove is connected to the notch, and the other end of the groove is at a distance from the axis of the dial 1 that is greater than or equal to the radius of the wrench, so that the connection between the wrench and the valve will not be interfered with by the dial 1.
[0031] In a further embodiment, a reinforcing rib 3 is provided between the bottom of the support plate 2 and the side wall of the dial 1. Multiple reinforcing ribs 3 are provided, and the multiple reinforcing ribs 3 are distributed in a circular array along the circumference of the dial 1.
[0032] The aforementioned reinforcing rib 3 not only enhances the strength between the support plate 2 and the dial 1, but also increases the friction between the dial 1 and the well cover 5, thereby preventing the dial 1 from shifting during the wrench rotation process, which could lead to inaccurate valve precision.
[0033] Multiple reinforcing ribs 3 can be provided. In this embodiment, four reinforcing ribs 3 are provided, and the four reinforcing ribs 3 are evenly distributed around the dial 1.
[0034] In a further embodiment, the fixed connection between the pointer 8 component and the wrench is a detachable fixed connection.
[0035] The pointer 8 assembly includes two arc-shaped clips 6 adapted to the shape of a wrench and a pointer 8. The two ends of the arc-shaped clips 6 are provided with lugs 7. The two arc-shaped clips 6 are fixed by installing a bolt assembly between the lugs 7 at both ends. The pointer 8 is horizontally fixed to the outside of one of the arc-shaped clips 6, and the direction of the pointer 8 is set along the diameter extension line of the arc-shaped clip 6.
[0036] The connection between the aforementioned pointer 8 components and the wrench can be a fixed connection or a detachable connection, depending on actual needs; a fixed connection can be achieved by welding.
[0037] The detachable connection between the pointer 8 assembly and the wrench is specifically achieved by setting a clamping structure on the side wall of the wrench assembly, with two arc-shaped clamps 6 clamping on both sides of the wrench. The clamp lugs 7 of the arc-shaped clamps 6 are used to install bolt and nut structures for fixation. The pointer 8 is fixed on one of the arc-shaped clamps 6, and the fixation can be welding. This allows the pointer 8 to be disassembled and reassembled according to usage requirements, adapting to different working environments.
[0038] The working principle of this utility model is as follows: Before use, place the middle part of the wrench into the strip groove on the dial 1, then extend the bottom end of the wrench into the manhole cover 5 through the manhole seat opening of the manhole cover 5, then place the dial 1 into the manhole seat opening of the manhole cover 5, and make the support plate 2 on the dial 1 contact the upper surface of the manhole cover 5. At the same time, make the operator at the bottom of the wrench combine with the valve, then wrap the two arc-shaped clamps 6 around the two sides of the wrench, and make the pointer 8 correspond to the 0 mark 4 (the pointer 8 is as close as possible to the dial 1), and then fix the two arc-shaped clamps 6 with bolt assembly; when using, rotate the wrench to drive the pointer 8 to rotate, observe the mark corresponding to the pointer 8, and stop rotating when the preset mark is reached; after use, remove the wrench and dial 1 from the manhole cover 5, separate the dial 1 and the wrench, and remove the pointer 8 assembly at the same time.
[0039] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0040] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
[0041] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.
Claims
1. A valve adjusting wrench for a direct-buried balance valve with a split-type dial, characterized in that: Includes dial and pointer components; The outer diameter of the dial is adapted to the diameter of the net opening of the well seat on the manhole cover. The top of the dial is provided with a scale line representing the rotation angle of the wrench. The top of the dial extends outward to form an annular support plate. The outer diameter of the support plate is larger than the diameter of the net opening of the well seat on the manhole cover. The side wall of the dial is provided with a notch, and a strip groove is provided at the position corresponding to the notch on the top of the dial. The width of the strip groove is adapted to the diameter of the wrench. The pointer component is mounted on the wrench and is fixedly connected to the wrench.
2. The valve adjusting wrench with a split-type dial for a direct-buried balance valve according to claim 1, characterized in that: A reinforcing rib is provided between the bottom of the support plate and the side wall of the dial.
3. The valve adjusting wrench with a split-type dial for a direct-buried balance valve according to claim 2, characterized in that: The reinforcing ribs are provided in multiple ways, and the multiple reinforcing ribs are distributed in a circular array along the periphery of the dial.
4. The valve adjusting wrench with a split-type dial for a direct-buried balance valve according to claim 1, characterized in that: The connection between the pointer assembly and the wrench is a detachable fixed connection.
5. A valve adjusting wrench with a split-type dial for a direct-buried balance valve according to claim 4, characterized in that: The pointer assembly includes two arc-shaped clips adapted to the shape of a wrench and a pointer. The two arc-shaped clips are provided with lugs at both ends. The two arc-shaped clips are fixed by a bolt assembly installed between the lugs at both ends. The pointer is horizontally fixed to the outside of one of the arc-shaped clips, and the direction of the pointer is set along the extension line of the diameter of the arc-shaped clip.