Heat-resistant plastic adjusting locking valve and valve opening adjusting wrench corresponding to heat-resistant plastic adjusting locking valve

Abstract

The utility model discloses a heat-resistant plastic adjusting and locking valve and a valve opening adjusting wrench corresponding to the heat-resistant plastic adjusting and locking valve, the heat-resistant plastic adjusting and locking valve comprises a locking connector mounted on a mounting seat at the top of a valve body, and the locking connector comprises a connecting cylinder matched with the mounting seat and a valve opening indicating dial arranged on the outer wall of the connecting cylinder; the valve rod extends into the mounting seat and enters an inner cavity of the connecting cylinder, a lock cap is adaptively mounted at one end, deviating from the valve body, of the connecting cylinder, and the lock cap can be opened only by using a corresponding key; after the lock cap is opened, the clamping connector on the valve opening degree adjusting wrench can be connected with the valve rod in the locking connector in a matched and inserted mode, then the opening degree of the valve can be adjusted by rotating a wrench handle, the actual opening degree of the valve can be indicated in real time through a pointer on the wrench in the adjusting process, and a basis is provided for adjustment; therefore, unauthorized personnel can be effectively prevented from adjusting the valve through the locking connector and the lock cap, and the safety and stability of system operation are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of valves, and in particular, to a heat-resistant plastic regulating lock valve for regulating the pipeline flow in a heating pipeline, and a valve opening regulating wrench corresponding thereto. Background Art

[0002] Regulating valves are mainly used to regulate the pipeline flow in pipelines and are widely used in the heating industry. With the growth of urban heating demand, plastic regulating valves are gradually increasing in application in heating pipelines due to their characteristics such as corrosion resistance, light weight, and low maintenance cost.

[0003] After a traditional regulating valve is installed on a heating pipeline, the valve can usually be easily rotated and opened, and the valve switch is easily accidentally opened by an external touch. At the same time, there is also the problem that the valve opening can be adjusted arbitrarily without authorization, resulting in difficult stable operation of the heating system.

[0004] Chinese Utility Model Patent CN202223277644.4 discloses a heating pipeline protection valve, which can solve the problem that the valve switch of the existing heating pipeline protection valve is easily accidentally opened by an external touch. Through the cooperation of multiple structures, it can achieve the self-locking of the ball valve body at the bottom end of the driven shaft of the valve body, so that it can be positioned at a suitable position and the valve can be stably maintained in a closed or open state as required. When adjusting the switch state of the heating pipeline protection valve, it is necessary to first perform a pressing action and then a rotating action to adjust the valve, so that the valve is not easily accidentally opened.

[0005] Although the valve disclosed in the above patent document can solve the problem that the valve switch is easily accidentally opened, it still has the problem that the valve can be arbitrarily adjusted by others without authorization. In public facilities or important equipment, it is very important to prevent unauthorized personnel from adjusting the valve, which can ensure the safety and stability of the system.

[0006] Therefore, at present, the regulating valve can be easily adjusted by unauthorized personnel, resulting in difficulty in ensuring the safety and stability of the system. In this regard, it is necessary to propose a new technical solution to solve the above problems. Summary of the Utility Model

[0007] The present application provides a heat-resistant plastic regulating lock valve and a valve opening regulating wrench corresponding thereto to solve the problem that the traditional regulating valve can be easily adjusted by unauthorized personnel.

[0008] To achieve the above object, the present application provides the following technical solutions:

[0009] On the one hand, the present application provides a heat-resistant plastic regulating locking valve, including a valve body, the valve body having a valve cavity, a valve ball arranged in the valve cavity, the top of the valve ball connected to the valve stem, a mounting seat allowing the valve stem to pass through is arranged on the top of the valve body, a locking joint is arranged on the mounting seat, the locking joint includes a connecting tube adapted to be connected to the mounting seat and a valve opening indicator disk arranged on the outer wall of the connecting tube, the valve stem extends into the mounting seat and enters the inner cavity of the connecting tube, and a locking cap is adapted to be installed on the end of the connecting tube facing away from the valve body, and the locking cap is used to lock the valve stem in the connecting tube.

[0010] Furthermore, in the above technical solution, the mounting seat is a protruding structure protruding outward from the outer wall of the valve body, a mounting hole is formed in the mounting seat, the valve stem extends into the mounting hole, and a sealing ring is provided on the valve stem to achieve sealing between the valve stem and the mounting hole.

[0011] Furthermore, the mounting seat is provided with a mounting groove for mounting the connecting tube, the bottom of the mounting groove is provided with a center hole, and the center hole is connected to the mounting hole; the outer wall of the connecting tube is tightly connected to the inner wall of the mounting groove.

[0012] Furthermore, the valve body and the locking joint are both made of polyethylene material, and the valve ball and the valve stem are both made of polyoxymethylene material; the locking joint is connected to the mounting seat by hot-melt welding.

[0013] Furthermore, the valve opening indicator disk is an annular sheet body arranged along the radial direction of the connecting cylinder, and an angle scale is arranged on the surface of the valve opening indicator disk facing away from the valve body.

[0014] Furthermore, a circle of annular grooves is provided on the outer wall of the connecting tube, and the connecting tube is mounted in cooperation with the locking cap through the annular grooves.

[0015] On the other hand, the present application provides a valve opening adjustment wrench corresponding to the above-mentioned heat-resistant plastic regulating locking valve, the valve opening adjustment wrench includes a handle and a snap cap arranged at one end of the handle; the snap cap includes a cap body connected to the handle and a snap joint arranged on the cap body, the snap joint is a columnar protrusion fixed on the cap body, and a snap groove is provided on the top of the columnar protrusion. The snap joint can be extended into the inner cavity of the connecting tube and adapted to be connected with the valve stem through the snap groove. Turning the handle can drive the valve ball to rotate, thereby realizing the valve opening adjustment; a pointer is provided on the cap body to indicate the actual opening of the valve, and the pointer points to the valve opening indicator disk.

[0016] Furthermore, in the above technical solution, the cap body is a cylindrical cylinder structure with one end open and the other end closed. The snap-fit joint is arranged in the inner cavity of the cap body. The length direction of the snap-fit joint is the same as the length direction of the cap body. An installation gap is left between the inner wall of the cap body and the outer wall of the snap-fit joint. The cap body can be adapted to be inserted into the connecting cylinder of the heat-resistant plastic regulating locking valve, and the cap body is located above the valve opening indicator disk.

[0017] Further, a pointer is provided on the outer surface of the side wall of the cap body. The pointer is a scale line provided on the cap body, and the length direction of the scale line is the same as the length direction of the cap body.

[0018] Compared with the prior art, the present application has at least the following beneficial effects:

[0019] 1. Based on further analysis and research of the problems in the prior art, the present application realizes that traditional regulating valves can be easily adjusted by unauthorized personnel, resulting in difficulty in ensuring the safety and stability of the system. For this reason, the present application provides a heat-resistant plastic regulating lock valve, which can effectively prevent unauthorized personnel from adjusting the valve by setting a locking joint and a lock cap, ensuring the safety and stability of the system operation; at the same time, a valve opening indicator disk is provided on the locking joint in the present application, enabling the operator to intuitively understand the current state of the valve, facilitating monitoring and management, and improving the convenience of operation; therefore, the present application realizes the protection of the regulating valve by setting a locking joint and a lock cap on the valve body, and the overall structure is simple and reliable. In specific applications, authorized staff can open the lock cap with the key corresponding to the lock cap, and then dock the adjusting wrench corresponding to the valve with the valve stem to realize the adjustment of the valve opening, playing a dual locking role, avoiding the random adjustment of the valve by unauthorized personnel, and ensuring the safety and stability of the system.

[0020] 2. The present application also provides a valve opening adjusting wrench corresponding to the above heat-resistant plastic regulating lock valve, which is provided with a clamping cap and a handle. The clamping joint on the clamping cap can be adaptively docked with the valve stem in the locking joint. After the docking is completed, the staff can rotate the handle to drive the valve ball connected to the valve stem to rotate, thereby realizing the opening and closing of the liquid flowing through the flow passage of the valve; a pointer is also provided on the clamping cap in the present application, and the pointer pointing to the valve opening indicator disk can indicate the actual opening of the valve, providing a basis for valve adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. It should be understood that the specific shapes and structures shown in the drawings are generally not regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / removal / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0022] Figure 1 It is a front view structural schematic diagram of the valve body in an embodiment;

[0023] Figure 2 It is a schematic top view structure diagram of a valve body in an embodiment;

[0024] Figure 3 It is a schematic front view structure diagram of a locking joint in an embodiment;

[0025] Figure 4 It is a schematic top view structure diagram of a locking joint in an embodiment;

[0026] Figure 5 It is a schematic front view structure diagram of a heat-resistant plastic regulating locking valve provided by the present application in an embodiment;

[0027] Figure 6 It is Figure 5 The schematic top view structure diagram of the heat-resistant plastic regulating locking valve shown;

[0028] Figure 7 It is at Figure 5 The schematic front view structure diagram after installing a lock nut on the locking joint of the heat-resistant plastic regulating locking valve shown;

[0029] Figure 8 It is Figure 7 The schematic top view structure diagram of;

[0030] Figure 9 It is a schematic front view structure diagram of a valve opening adjustment wrench in an embodiment;

[0031] Figure 10 It is a schematic top view structure diagram of a valve opening adjustment wrench in an embodiment;

[0032] Figure 11 It is a schematic rear view structure diagram of a valve opening adjustment wrench in an embodiment;

[0033] Figure 12 It is a schematic front view structure diagram after the valve opening adjustment wrench and the heat-resistant plastic regulating locking valve are correspondingly assembled in an embodiment;

[0034] Figure 13 It is Figure 12 The schematic top view structure diagram of.

[0035] Explanation of reference numerals:

[0036] 1. Valve body; 11. Mounting seat;

[0037] 2. Valve stem;

[0038] 3. Locking joint; 3×1. Connecting cylinder; 3×1×1. Annular groove; 3×2. Valve opening indicating disc;

[0039] 4. Lock nut;

[0040] 5. Valve opening adjustment wrench; 51. Handle; 52. Snap-on cap; 521. Cap body; 5211. Pointer; 522. Snap-on connector; 5221. Snap-on groove. DETAILED DESCRIPTION

[0041] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0042] In the description of this application: unless otherwise specified, "plurality" means two or more. The terms "including," "comprising," "having," and the like in this application also mean "not limited to" (certain units, components, materials, steps, etc.).

[0043] Terms such as "upper," "lower," "left," "right," and "center" used in this application are generally intended to facilitate intuitive understanding when compared with the accompanying drawings and are not intended to be absolute limitations on positional relationships in actual products. Changes to these relative positional relationships are considered within the scope of this application without departing from the technical concepts disclosed herein.

[0044] Traditional regulating valves have the problem of being easily adjusted by unauthorized personnel. In order to prevent the valves that have been adjusted from being adjusted at will, the present application provides a heat-resistant plastic regulating locking valve and a corresponding valve opening adjustment wrench. The heat-resistant plastic regulating locking valve and the valve opening adjustment wrench are described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] See also Figure 1 、 2 This embodiment provides a heat-resistant plastic regulating lock valve, comprising a valve body 1 having a valve cavity, a valve ball disposed in the valve cavity, a valve stem 2 connected to the top of the valve ball, and a mounting seat 11 allowing the valve stem 2 to pass through the top of the valve body 1. Figure 5 、 6 , a locking joint 3 is provided on the mounting seat 11. Figure 3 The locking joint 3 includes a connecting tube 31 adapted to be connected to the mounting seat 11 and a valve opening indicator disk 32 provided on the outer wall of the connecting tube 31. The valve stem 2 extends into the mounting seat 11 and into the inner cavity of the connecting tube 31. The end of the connecting tube 31 facing away from the valve body 1 is adapted to be installed with a locking cap 4. The locking cap 4 is used to lock the valve stem 2 in the connecting tube 31. Figure 7 .

[0047] The heat-resistant plastic regulating locking valve provided in this embodiment can effectively prevent unauthorized personnel from adjusting the valve by providing a locking joint 3 and a locking cap 4, thereby ensuring the safety and stability of the system operation.

[0048] In this embodiment, water inlet ports and water outlet ports are formed at the left and right ends of the valve body 1. A valve cavity is formed in the middle of the valve body 1. A valve ball is arranged in the valve cavity, and a diversion channel is arranged on the valve ball. Rotating the valve stem 2 can drive the valve ball to rotate. When both the water inlet port and the water outlet port on the valve body 1 are communicated with the diversion channel on the valve ball, the valve is in an open state. Refer to Figure 1 , 2 , the mounting seat 11 arranged on the top of the above-mentioned valve body 1 is a convex structure protruding outward from the outer wall of the valve body 1. An installation hole is formed in the mounting seat 11, and the valve stem 2 extends into the installation hole. A sealing ring can be arranged on the valve stem to ensure the structural sealing between the valve stem and the installation hole.

[0049] In specific production, the mounting seat 11 on the top of the valve body 1 can be processed into a universal pipe interface. In this way, during production and installation, various pipe valve structures can be adaptively docked on the mounting seat 11 as needed. For example, an electric actuator can be connected to the mounting seat 11, or a locking joint 3 in this application can be connected to the mounting seat 11 to form a regulating lock valve.

[0050] In this embodiment, an installation groove for installing the locking joint 3 is further arranged on the mounting seat 11. A central hole is arranged at the bottom of the installation groove, and the central hole is communicated with the installation hole on the mounting seat 11. Therefore, the clamping joint of the valve opening adjustment wrench can extend into the mounting seat to be adaptively connected to the valve stem 2. The outer wall of the connecting cylinder 31 of the locking joint 3 in this application is tightly and adaptively connected to the inner wall of the installation groove, such as Figure 5 , 6 .

[0051] The heat-resistant plastic regulating lock valve provided by this application adopts a fully plastic design and is injection-molded in one step. Specifically, both the valve body 1 and the locking joint 3 are made of polyethylene material (PE material), and both the valve ball and the valve stem 2 are made of polyoxymethylene material (POM material). The locking joint 3 can be produced and processed by injection molding, and the locking joint 3 can be fixedly connected to the mounting seat 11 by hot melt welding. Of course, in addition to the high-temperature-resistant polyethylene material, the valve provided by this application can also adopt other plastic materials with high-temperature resistance characteristics, such as polypropylene, fluoroplastics, etc.

[0052] In other embodiments, the locking joint 3 and the mounting seat 11 can also adopt threaded connection or other connection methods. Of course, compared with the threaded connection method, the hot melt welding method has more advantages in terms of structural reliability and sealing performance.

[0053] In this embodiment, refer to Figure 3 , 4, the valve opening indicator disc 32 on the locking joint 3 is a plastic annular sheet body arranged in the radial direction of the connecting cylinder 31, and angle scales are provided on the surface of the valve opening indicator disc 32 facing away from the valve body 1. During specific processing, only 0-90° scales can be set on a quarter of the annular surface of the valve opening indicator disc 32.

[0054] In this embodiment, one end of the valve stem 2 extending into the locking joint 3 forms an operation connection end corresponding to the valve opening adjustment wrench 5, and the cross-sectional shape of the operation connection end can be any shape other than circular, such as triangular, rectangular, oval, racetrack-shaped, pentagonal or hexagonal, etc.

[0055] In this embodiment, as Figure 3 , a circular groove 311 is provided on the outer wall of the connecting cylinder 31 of the locking joint 3. The connecting cylinder 31 can be installed in cooperation with the lock nut 4 through the circular groove 311, and the lock nut 4 locks the locking joint 3. The lock nut 4 and the corresponding key in this application can be purchased magnetic locking parts. After locking the locking joint 3, the staff needs to take the corresponding key to open the lock nut 4.

[0056] Therefore, this embodiment provides a heat-resistant polyethylene regulating lock valve for heating, which can adjust the flow rate in the pipeline. After the valve adjustment is completed, the lock nut 4 is installed on the locking joint 3, and the lock nut 4 requires a corresponding key to open. After opening the lock nut 4, a corresponding valve opening adjustment wrench 5 is also required to rotate the valve stem 2 in the locking joint 3. Therefore, this application realizes the dual locking function of the valve through structural improvement, which can effectively prevent non-staff from randomly changing the valve opening and affecting the pipeline adjustment effect, and ensure the safety and stability of the system; in addition, the heat-resistant polyethylene regulating lock valve provided in this embodiment adopts a full-plastic design and is injection-molded in one step, with the advantages of corrosion resistance, no scaling, small torque and long service life.

[0057] Embodiment 2

[0058] Based on the heat-resistant plastic regulating lock valve provided in the above Embodiment 1, this embodiment provides a corresponding valve opening adjustment wrench. The valve opening adjustment wrench can be used to adjust the opening of the valve in Embodiment 1. There is a pointer on the wrench, which can indicate the actual opening of the valve and provide a basis for adjustment. The valve opening adjustment wrench is used in cooperation with the above-mentioned locking interface. Only by using the valve opening adjustment wrench can the valve be adjusted, which also plays a dual locking role.

[0059] In this embodiment, see Figures 9 to 11, the valve opening adjustment wrench 5 mainly includes a handle 51 and a clamping cap 52 provided at one end of the handle 51. Specifically, the clamping cap 52 includes a cap body 521 connected to the handle 51 and a clamping joint 522 provided on the cap body 521. The clamping joint 522 is a columnar protrusion fixed on the cap body 521. A clamping groove 5221 is formed at the top of the columnar protrusion. The clamping joint 522 can extend into the inner cavity of the connecting cylinder 31 and be adaptively inserted with the valve stem 2 through the clamping groove 5221. Rotating the handle 51 can drive the valve ball to rotate, thereby realizing the adjustment of the valve opening; a pointer 5211 for indicating the actual valve opening is provided on the cap body 521, and the pointer 5211 points to the valve opening indicator disk 32.

[0060] The above-mentioned cap body 521 can be a columnar cylinder structure with one end open and the other end closed. The clamping joint 522 is arranged in the inner cavity of the cap body 521. The length direction of the clamping joint 522 is the same as that of the cap body 521. There is an installation gap between the inner wall of the cap body 521 and the outer wall of the clamping joint 522. The cap body 521 can be adaptively inserted on the connecting cylinder 31 of the heat-resistant plastic regulating lock valve, and the cap body 521 is located above the valve opening indicator disk 32.

[0061] The above-mentioned pointer 5211 can be arranged on the outer surface of the side wall of the cap body 521. The pointer 5211 is a scale line arranged on the cap body 521. The length direction of the scale line is the same as that of the cap body 521. An arrow can be arranged at one end of the pointer 5211 pointing to the valve opening indicator disk 32.

[0062] The cross-sectional shape of the above-mentioned clamping groove is the same as the cross-sectional shape of the operating connection end of the valve stem. Therefore, the valve opening adjustment wrench provided in this embodiment can be adaptively docked with the valve stem in the locking joint. After the docking is completed, the staff can rotate the handle to drive the valve ball connected to the valve stem to rotate, thereby realizing the on-off of the liquid flowing through the valve flow passage; a pointer is also provided on the clamping cap in this application. The pointer pointing to the valve opening indicator disk can indicate the actual valve opening, providing a basis for valve adjustment. This application realizes the double locking of the regulating valve through the locking cap and the valve opening adjustment wrench adapted to the locking joint, preventing the valve from being easily adjusted by unauthorized personnel and improving the safety and stability of the system.

[0063] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be regarded as within the scope described in this specification.

[0064] In the foregoing, the present application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can also be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained from these conventional adjustments or further innovations also fall within the protection scope of the claims of the present application.

Claims

1. A heat-resistant plastic regulating shut-off valve, comprising a valve body, the valve body having a valve cavity, a valve ball is arranged in the valve cavity, the top of the valve ball is connected to a valve rod, and a mounting seat allowing the valve rod to pass through is arranged at the top of the valve body, characterized in that, A locking joint is arranged on the mounting base. The locking joint includes a connecting cylinder adaptively connected to the mounting base and a valve opening indicating disc arranged on the outer wall of the connecting cylinder. The valve stem extends into the mounting base and enters the inner cavity of the connecting cylinder. A lock nut is adaptively installed at one end of the connecting cylinder away from the valve body, and the lock nut is used to lock the valve stem in the connecting cylinder.

2. The heat-resistant plastic regulating shut-off valve according to claim 1, characterized in that, The mounting base is a convex structure protruding outward from the outer wall of the valve body. An installation hole is formed in the mounting base, and the valve stem extends into the installation hole. A sealing ring is arranged on the valve stem, and the sealing ring realizes the seal between the valve stem and the installation hole. An installation groove for installing the connecting cylinder is also arranged on the mounting base. A central hole is arranged at the bottom of the installation groove, and the central hole is communicated with the installation hole. The outer wall of the connecting cylinder is closely and adaptively connected to the inner wall of the installation groove.

3. The heat-resistant plastic regulating shut-off valve according to claim 1, characterized in that, Both the valve body and the locking joint are made of polyethylene material, and both the valve ball and the valve stem are made of polyoxymethylene material. The locking joint is connected to the mounting base by hot melt welding.

4. The heat-resistant plastic regulating shut-off valve according to claim 1, characterized in that, The valve opening indicating disc is an annular sheet body arranged along the radial direction of the connecting cylinder, and angle scales are arranged on the surface of the valve opening indicating disc away from the valve body.

5. The heat-resistant plastic regulating shut-off valve according to claim 1, characterized in that, A circular groove is arranged on the outer wall of the connecting cylinder, and the connecting cylinder is cooperatively installed with the lock nut through the circular groove.

6. A valve opening adjustment wrench for a heat-resistant plastic regulating shut-off valve according to any one of claims 1-5, characterized in that, The valve opening adjusting wrench includes a handle and a clamping cap arranged at one end of the handle. The clamping cap includes a cap body connected to the handle and a clamping joint arranged on the cap body. The clamping joint is a columnar convex block fixed on the cap body, and a clamping groove is arranged at the top of the columnar convex block. The clamping joint can extend into the inner cavity of the connecting cylinder and be adaptively inserted with the valve stem through the clamping groove. Rotating the handle can drive the valve ball to rotate, thereby realizing the adjustment of the valve opening. A pointer for indicating the actual opening of the valve is arranged on the cap body, and the pointer points to the valve opening indicating disc.

7. The valve opening adjusting wrench according to claim 6, characterized in that, The cap body is a columnar cylinder structure with one end open and the other end closed. The clamping joint is arranged in the inner cavity of the cap body, and the length direction of the clamping joint is the same as the length direction of the cap body. An installation gap is left between the inner wall of the cap body and the outer wall of the clamping joint. The cap body can be adaptively inserted on the connecting cylinder of the heat-resistant plastic regulating locking valve, and the cap body is located above the valve opening indicating disc. A pointer is arranged on the outer surface of the side wall of the cap body. The pointer is a scale line arranged on the cap body, and the length direction of the scale line is the same as the length direction of the cap body.

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