Valve with self-locking structure

Abstract

The utility model discloses a valve with a self-locking structure, which comprises a valve main body unit comprising a communicating pipe, the middle part of the upper surface of the communicating pipe is fixedly connected with a branch pipe, and the upper end of the branch pipe is provided with a connecting pipe; the valve rod unit comprises an upper valve rod assembly, a lower valve rod assembly is arranged at the lower end of the upper valve rod assembly, a reset assembly is arranged in the lower valve rod assembly, fixing plates are arranged on the outer surface of the upper valve rod assembly and the outer surface of the lower valve rod assembly, a partition plate is arranged at the upper end of the lower valve rod assembly, and a limiting assembly is arranged at the lower end of the upper valve rod assembly. The extending block and the protruding block are inserted into the inserting hole and the groove, then the reset assembly can be pushed down, then the valve can be adjusted, after adjustment is completed, the reset spring can push the extending block and the protruding block to move out of the inserting hole, and then the clamping block can lock a valve hand wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a valve with a self-locking structure. Background Art

[0002] The valve is a control component in the fluid delivery system, with functions such as cut-off, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. The valve installed on the pipeline includes a valve body, a valve stem and a valve plate. The valve plate is located in the valve body and is used to open and close the channel. The tail end of the valve stem is inserted into the valve body from the head end and is linked to the valve plate. A hand wheel is also provided at the head end of the valve stem. When working, the hand wheel is operated to drive the valve stem to operate, so that the opening and closing movement of the valve plate can be realized.

[0003] However, the existing fluid valves are prone to accidental touch during use, causing the fluid valve to open, resulting in unnecessary losses, which not only affects the work quality, but also poses a serious safety hazard. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the existing valve with a self-locking structure, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a valve with a self-locking structure, which is to solve the problem that "but the existing fluid valves are easily touched by mistake during use, causing the fluid valve to open, causing unnecessary losses, which not only affects the work quality, but also seriously poses a safety hazard."

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a valve with a self-locking structure, comprising:

[0008] The valve main body unit comprises a connecting pipe, a branch pipe is fixedly connected to the middle of the upper surface of the connecting pipe, a connecting pipe is arranged at the upper end of the branch pipe, and flanges are fixedly connected to both ends of the connecting pipe and the upper end of the branch pipe;

[0009] The valve stem unit comprises an upper valve stem assembly, a lower valve stem assembly is arranged at the lower end of the upper valve stem assembly, a reset assembly is arranged inside the lower valve stem assembly, the outer surfaces of the upper valve stem assembly and the lower valve stem assembly are both provided with a fixing plate, the upper end of the lower valve stem assembly is provided with a partition, and the lower end of the upper valve stem assembly is provided with a limit assembly, a plurality of card grooves are opened on the lower surfaces of the fixing plate and the partition, and the fixing plate is provided with a plurality of, the reset assembly comprises a reset spring, the lower end of the reset spring is fixedly connected to the inner bottom wall of the plug-in hole, the upper end of the reset spring is fixedly connected to a connecting block, the upper surface of the connecting block is fitted on the lower end of the extension block, a plurality of card blocks are fixedly connected to the outer edge of the connecting block, the outer surface of one side of the card block is slidably connected to the inside of the slide groove, and the outer surface of the other side of the card block is fitted inside the card groove, the limit assembly comprises a connecting ring, the inner wall of the connecting ring is fixedly connected to the lower part of the outer surface of the first main rod, the upper surface of the connecting ring is fixedly connected to the limit block, and the outer surface of the limit block is fitted inside the card groove.

[0010] As a preferred solution of a valve with a self-locking structure described in the utility model, the upper valve stem assembly includes a first main rod, the middle part of the outer surface of the first main rod is slidably connected to the inside of a fixed plate, the outer surface of the fixed plate is fixedly connected to the inner wall of the branch pipe, the lower end of the first main rod is fixedly connected to an extension block, the upper part of the outer surface of the extension block is fixedly connected to a protrusion, and the upper end of the first main rod is fixedly connected to a handwheel.

[0011] As a preferred solution of a valve with a self-locking structure described in the utility model, the lower valve stem assembly includes a second main rod, the middle part of the outer surface of the second main rod is slidably connected to the inside of another fixed plate, the upper part of the outer surface of the second main rod is fitted into the inside of the partition, the upper end of the second main rod is provided with a plug-in hole, the upper part of the inner wall of the plug-in hole is provided with a plurality of grooves, and the lower part of the inner wall of the plug-in hole is provided with a sliding groove.

[0012] As a preferred solution of a valve with a self-locking structure described in the utility model, the outer surface of the extension block fits against the inner wall of the plug-in hole, the outer surface of the protrusion fits against the inner wall of the groove, and the lower end of the first main rod fits against the upper end of the second main rod.

[0013] Beneficial effects of the utility model:

[0014] By inserting the extension block and the protrusion into the plug-in hole and the groove, the reset assembly can be pushed down, and the valve can be adjusted. After the adjustment is completed, the reset spring can push the extension block and the protrusion out of the plug-in hole, and the card block can lock the valve handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 A three-dimensional diagram of a valve with a self-locking structure proposed by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the valve stem assembly structure;

[0018] Figure 3 for Figure 2 Enlarged view of point A.

[0019] In the figure: 100, valve body unit; 101, connecting pipe; 102, branch pipe; 103, connecting pipe; 104, flange; 200, valve stem unit; 201, upper valve stem assembly; 201a, first main stem; 201b, extension block; 201c, protrusion; 202, lower valve stem assembly; 202a, second main stem; 202b, plug-in hole; 202c, groove; 202d, slide; 203, reset assembly; 203a, reset spring; 203b, connecting block; 203c, clamping block; 204, partition; 205, fixing plate; 206, limit assembly; 206a, connecting ring; 206b, limit block; 207, clamping groove; 208, handwheel. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] Reference Figure 1-3 The utility model provides a valve with a self-locking structure, comprising:

[0025] The valve main body unit 100 includes a connecting pipe 101, a branch pipe 102 is fixedly connected to the middle of the upper surface of the connecting pipe 101, a connecting pipe 103 is provided at the upper end of the branch pipe 102, and flanges 104 are fixedly connected to both ends of the connecting pipe 101 and the upper end of the branch pipe 102;

[0026] The valve stem unit 200 includes an upper valve stem assembly 201, a lower valve stem assembly 202 is disposed at the lower end of the upper valve stem assembly 201, a reset assembly 203 is disposed inside the lower valve stem assembly 202, a fixing plate 205 is disposed on the outer surfaces of the upper valve stem assembly 201 and the lower valve stem assembly 202, a partition plate 204 is disposed at the upper end of the lower valve stem assembly 202, a limit assembly 206 is disposed at the lower end of the upper valve stem assembly 201, a plurality of slots 207 are provided on the lower surfaces of the fixing plate 205 and the partition plate 204, and the fixing plate 205 is provided with a plurality of. When the valve hand wheel 208 is rotated to the closed position, the reset assembly 203 between the upper valve stem assembly 201 and the lower valve stem assembly 202 is automatically triggered to lock the valve stem unit 200 in a closed state. At this time, the slots 207 of the fixed plate 205 and the partition plate 204 will engage with each other to form a locking mechanism to prevent the valve handwheel 208 from rotating on its own due to external vibration or pressure, thereby ensuring the stability and safety of the valve, reducing the need to monitor the valve status, and improving operational efficiency and convenience.

[0027] The upper valve stem assembly 201 includes a first main rod 201a, the middle of the outer surface of the first main rod 201a is slidably connected to the inside of the fixed plate 205, the outer surface of the fixed plate 205 is fixedly connected to the inner wall of the branch pipe 102, the lower end of the first main rod 201a is fixedly connected to an extension block 201b, the upper part of the outer surface of the extension block 201b is fixedly connected to a protrusion 201c, and the upper end of the first main rod 201a is fixedly connected to a hand wheel 208. The upper valve stem assembly 201 is rotated by the hand wheel 208, so that the first main rod 201a moves downward. Since the middle of the outer surface of the first main rod 201a is slidably connected to the inside of the fixed plate 205, and the outer surface of the fixed plate 205 is fixedly connected to the inner wall of the branch pipe 102, this design ensures that the upper valve stem assembly 201 can maintain a stable connection with the valve body unit 100 when rotating. At the same time, the lower end of the first main rod 201a is fixedly connected to an extension block 201b, and the upper outer surface of the extension block 201b is fixedly connected to a protrusion 201c. These structures ensure that the upper valve stem assembly 201 is correctly aligned with the lower valve stem assembly 202 during movement, thereby achieving effective closure of the valve.

[0028] Further, the lower valve stem assembly 202 includes a second main rod 202a, the middle of the outer surface of the second main rod 202a is slidably connected to the inside of another fixed plate 205, the upper outer surface of the second main rod 202a is fitted inside the partition 204, the upper end of the second main rod 202a is provided with a plug hole 202b, the upper inner wall of the plug hole 202b is provided with a plurality of grooves 202c, and the lower inner wall of the plug hole 202b is provided with a slide groove 202d. The outer surface of the extension block 201b is fitted to the inner wall of the plug hole 202b, the outer surface of the protrusion 201c is fitted to the inner wall of the groove 202c, and the lower end of the first main rod 201a is fitted to the upper end of the second main rod 202a. The structure of the second main rod 202a enables it to slide inside the fixed plate 205, and this sliding connection ensures the stability and flexibility of the assembly. When the upper valve stem assembly 201 is operated so that the extension block 201b is inserted into the plug hole 202b and the protrusion 201c is embedded in the groove 202c, a precise fit is formed between the first main rod 201a and the second main rod 202a. This structural configuration not only improves the accuracy of valve operation, but also enhances the sealing performance to prevent fluid leakage.

[0029] Furthermore, the reset assembly 203 includes a reset spring 203a, the lower end of which is fixedly connected to the inner bottom wall of the plug hole 202b, the upper end of which is fixedly connected to a connection block 203b, the upper surface of which is fitted to the lower end of the extension block 201b, and the outer edge of which is fixedly connected to a plurality of clamping blocks 203c, the outer surface of one side of the clamping block 203c is slidably connected to the inside of the slide groove 202d, and the outer surface of the other side of the clamping block 203c is fitted to the inside of the clamping groove 207. When the hand wheel 208 is released, the reset spring 203a will push the upper valve stem assembly 201 upward, thereby achieving self-locking, reducing the possibility of malfunction due to vibration or external interference, and ensuring the stability and reliability of the valve system.

[0030] Furthermore, the limit assembly 206 includes a connecting ring 206a, the inner wall of which is fixedly connected to the lower part of the outer surface of the first main rod 201a, and the upper surface of the connecting ring 206a is fixedly connected to the limit block 206b, and the outer surface of the limit block 206b is fitted inside the slot 207. The connecting ring 206a is fixed on the outer surface of the first main rod 201a, ensuring its stability and reliability during the operation of the valve. The limit block 206b is tightly attached to the inside of the slot 207. When the valve is opened or closed, the limit block 206b can slide to a certain position in the slot 207, thereby limiting its stroke and improving the accuracy during use.

[0031] During use, the valve main body unit 100 is first assembled. When in use, the hand wheel 208 is pressed to insert the extension block 201b and the protrusion 201c into the plug hole 202b and the groove 202c, so that the upper valve stem assembly 201 and the lower valve stem assembly 202 can be connected together, and the connecting block 203b and the clamping block 203c can be pushed downward to rotate the valve. After releasing the hand wheel 208, the upper valve stem assembly 201 is pushed back to its original position through the setting of the return spring 203a, and then the valve can be locked through the setting of the clamping block 203c slot 207 and the limit block 206b, thereby locking the valve hand wheel 208.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A valve with a self-locking structure, characterized in that: include: The valve main body unit (100) comprises a connecting pipe (101), a branch pipe (102) is fixedly connected to the middle of the upper surface of the connecting pipe (101), a connecting pipe (103) is arranged at the upper end of the branch pipe (102), and flanges (104) are fixedly connected to both ends of the connecting pipe (101) and the upper end of the branch pipe (102); The valve stem unit (200) comprises an upper valve stem assembly (201), a lower valve stem assembly (202) is arranged at the lower end of the upper valve stem assembly (201), a reset assembly (203) is arranged inside the lower valve stem assembly (202), the outer surfaces of the upper valve stem assembly (201) and the lower valve stem assembly (202) are both provided with a fixing plate (205), the upper end of the lower valve stem assembly (202) is provided with a partition (204), the lower end of the upper valve stem assembly (201) is provided with a limit assembly (206), the lower surfaces of the fixing plate (205) and the partition (204) are both provided with a plurality of slots (207), the fixing plate (205) is provided with a plurality of, the reset assembly (203) comprises a reset spring (203a), the lower end of the reset spring (203a) is fixedly connected to the plug hole (202b) The inner bottom wall, the upper end of the return spring (203a) is fixedly connected to a connecting block (203b), the upper surface of the connecting block (203b) is fitted on the lower end of the extension block (201b), the outer edge of the connecting block (203b) is fixedly connected to a plurality of clamping blocks (203c), the outer surface of one side of the clamping block (203c) is slidably connected to the inside of the slide groove (202d), and the outer surface of the other side of the clamping block (203c) is fitted on the inside of the clamping groove (207), the limit assembly (206) comprises a connecting ring (206a), the inner wall of the connecting ring (206a) is fixedly connected to the lower part of the outer surface of the first main rod (201a), the upper surface of the connecting ring (206a) is fixedly connected to the limiting block (206b), and the outer surface of the limiting block (206b) is fitted on the inside of the clamping groove (207).

2. A valve with a self-locking structure according to claim 1, characterized in that: The upper valve stem assembly (201) comprises a first main rod (201a), the middle portion of the outer surface of the first main rod (201a) is slidably connected to the interior of a fixed plate (205), the outer surface of the fixed plate (205) is fixedly connected to the inner wall of the branch pipe (102), the lower end of the first main rod (201a) is fixedly connected to an extension block (201b), the upper portion of the outer surface of the extension block (201b) is fixedly connected to a protrusion (201c), and the upper end of the first main rod (201a) is fixedly connected to a hand wheel (208).

3. A valve with a self-locking structure according to claim 1, characterized in that: The lower valve stem assembly (202) includes a second main rod (202a), the middle portion of the outer surface of the second main rod (202a) is slidably connected to the inside of another fixed plate (205), the upper portion of the outer surface of the second main rod (202a) is fitted to the inside of the partition (204), the upper end of the second main rod (202a) is provided with a plug hole (202b), the upper portion of the inner wall of the plug hole (202b) is provided with a plurality of grooves (202c), and the lower portion of the inner wall of the plug hole (202b) is provided with a slide groove (202d).

4. A valve with a self-locking structure according to claim 2, characterized in that: The outer surface of the extension block (201b) fits against the inner wall of the plug hole (202b), the outer surface of the protrusion (201c) fits against the inner wall of the groove (202c), and the lower end of the first main rod (201a) fits against the upper end of the second main rod (202a).

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