Overflow valve with tightness-adjustable elastic piece

Abstract

The utility model discloses an overflow valve with a tightness-adjustable elastic piece, and relates to the technical field of overflow valves. The device comprises a supporting assembly, and a rotating assembly is rotationally installed in an inner cavity of the supporting assembly. The internal parts of the rotating assembly are manually rotated, the internal parts of the rotating assembly rotate to drive the internal parts to rotate, due to meshing rotation between the internal parts, the internal parts of the rotating assembly rotate to drive the internal parts of the lifting assembly to rotate, and due to threaded installation between the internal parts of the lifting assembly, the internal parts of the lifting assembly can rotate more stably. The lifting assembly internal part rotates to drive the movable part to move up and down, the movable part of the lifting assembly internal part moves to drive the valve element assembly internal part to move, the valve element assembly internal part moves to enable the valve element assembly elastic part to move, and the elastic part moves to enable the valve element device to move. The opening and closing degree of the overflow valve is adjusted and controlled through movement of the valve element device, so that the tightness degree of the elastic piece is adjusted conveniently, and the purposes of saving time and labor are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of overflow valves, and in particular relates to an overflow valve with an elastic member having adjustable tightness. Background Art

[0002] The safety relief valve plays a role of safety protection in the system. When the system pressure exceeds the specified value, the safety valve opens and discharges part of the gas in the system into the atmosphere, so that the system pressure does not exceed the allowable value, thereby ensuring that the system does not cause accidents due to excessive pressure. During the use of the hydraulic system, in order to ensure the normal operation of the safety valve and extend the service life of the safety valve, the safety valve in operation should be checked regularly for leakage, obstruction, spring rust and other abnormal phenomena. If any problems are found, appropriate maintenance measures should be taken in time. The safety relief valve plays an important protective role.

[0003] The elastic part of the relief valve refers to a pressure-regulating spring connected to the valve core. The tightness of the elastic part of the existing pilot relief valve is mostly adjusted by a threaded rod. The threaded rod needs to be rotated during adjustment, and the threaded rod may slip during rotation, resulting in a poor adjustment effect on the elastic part of the relief valve. As a result, the normal use of the relief valve is affected due to the poor adjustment effect when the elastic part is adjusted, which is time-consuming, labor-intensive and inconvenient to use.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a relief valve with adjustable tightness of an elastic member to overcome the above technical problems existing in the existing related technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a relief valve with adjustable tightness of an elastic member, comprising a support assembly, a rotating assembly rotatably installed in an inner cavity of the support assembly, a lifting assembly fixedly installed at the bottom end of the rotating assembly, the lifting assembly slidably installed in the support assembly, a valve core assembly fixedly installed at the bottom of the lifting assembly, a fixed assembly slidably installed in the inner cavity of the support assembly, and the fixed assembly is assembled with the valve core assembly.

[0008] Furthermore, the support assembly includes a valve body, a liquid inlet pipe is fixedly installed on the bottom of the valve body, a liquid outlet pipe is fixedly installed on one side of the valve body, and a valve shell is fixedly installed on the top of the valve body.

[0009] Further, the rotating assembly includes a first rotating rod and four second rotating rods, the first rotating rod is rotatably installed on the top of the valve housing, a knob is fixedly installed on the bottom end of the first rotating rod, a driving gear is fixedly installed on the bottom end of the first rotating rod, the four second rotating rods are rotatably installed in the inner cavity of the valve housing, the four second rotating rods are fixedly installed with driven gears, and the driving gear meshes and rotates with the four driven gears.

[0010] Furthermore, the lifting assembly includes four slide grooves and four threaded rods, the four slide grooves are respectively opened on the side surfaces of the inner cavity of the valve housing, sliders are slidably installed in the four slide grooves, movable plates are fixedly installed on one side of the four sliders, the four threaded rods are respectively fixedly installed on the bottom ends of the four second rotating rods, threaded cylinders are threadedly installed on the surfaces of the four threaded rods, and the four threaded cylinders are fixedly installed on the movable plates.

[0011] Furthermore, the valve core assembly includes a connecting rod and a limit plate, the connecting rod is fixedly installed on the bottom of the movable plate, a valve core device is fixedly installed on the bottom of the connecting rod, the limit plate is fixedly installed in the inner cavity of the valve housing, a second spring is fixedly installed on the top of the limit plate, the top of the second spring is fixedly installed in the inner cavity of the valve housing, and one end of the connecting rod passes through the limit plate and is located in the second spring.

[0012] Furthermore, the fixing assembly includes a fixing frame and a movable rod, the movable rod is slidably installed in the inner cavity of the valve housing, a clamping frame is fixedly installed on one end of the movable rod, a pull plate is fixedly installed on the other end of the movable rod, a first spring is fixedly installed on one side of the clamping frame, the first spring is fixedly installed in the inner cavity of the valve housing, the movable rod is located in the first spring, and the fixing frame is fixedly installed on one side of the inner cavity of the valve housing.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model manually rotates the inner part of the rotating assembly, and the rotation of the inner part of the rotating assembly drives the rotation of the inner parts. Due to the meshing rotation between the inner parts, the rotation of the inner part of the rotating assembly drives the rotation of the inner part of the lifting assembly. Due to the threaded installation between the inner parts of the lifting assembly, the rotation of the inner part of the lifting assembly drives the movable part to move up and down. The movement of the movable part of the inner part of the lifting assembly drives the movement of the inner part of the valve core assembly. The movement of the inner part of the valve core assembly moves the elastic part of the valve core assembly. The movement of the elastic part moves the valve core device. The movement of the valve core device adjusts and controls the opening and closing size of the overflow valve, thereby facilitating the adjustment of the tightness of the elastic part, thereby achieving the purpose of saving time and labor;

[0015] 2. The utility model manually rotates the knob, and the rotation of the knob drives the first rotating rod to rotate, and the rotation of the first rotating rod drives the driving gear to rotate. Due to the meshing rotation of the driving gear and the driven gear, the driving gear rotates and drives the driven gear and the second rotating rod to rotate. The rotation of the second rotating rod drives the threaded rod to rotate. Due to the threaded installation of the threaded rod and the threaded barrel, the rotation of the threaded rod drives the threaded barrel and the movable plate to move. The movement of the movable plate drives the connecting rod, the second spring and the valve core device to move, so that the second spring is compressed. The movement of the valve core device makes it possible to adjust the switch size of the relief valve, thereby facilitating the adjustment of the tightness of the elastic member, thereby achieving the purpose of saving time and effort.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the rotating assembly of the utility model;

[0022] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Support assembly; 101. Valve body; 102. Liquid inlet pipe; 103. Liquid outlet pipe; 104. Valve shell; 2. Fixed assembly; 201. Pull plate; 202. Fixed frame; 203. First spring; 204. Movable rod; 205. Clamping frame; 3. Rotating assembly; 301. Knob; 302. First rotating rod; 303. Driving gear; 304. Driven gear; 305. Second rotating rod; 4. Lifting assembly; 401. Slide; 402. Sliding block; 403. Threaded rod; 404. Threaded barrel; 405. Movable plate; 5. Valve core assembly; 501. Connecting rod; 502. Valve core device; 503. Second spring; 504. Limit plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] See also Figure 1-Figure 5 As shown, the utility model is a relief valve with adjustable tightness of an elastic member, comprising a support assembly 1, a rotating assembly 3 is rotatably installed in the inner cavity of the support assembly 1, a lifting assembly 4 is fixedly installed at the bottom end of the rotating assembly 3, the lifting assembly 4 is slidably installed in the support assembly 1, a valve core assembly 5 is fixedly installed at the bottom of the lifting assembly 4, a fixed assembly 2 is slidably installed in the inner cavity of the support assembly 1, and the fixed assembly 2 is assembled with the valve core assembly 5.

[0028] When the device is needed, first, the operator can install the device at the use position with the help of the support component 1. In order to facilitate the adjustment of the tightness of the elastic member, the inner part of the rotating component 3 can be manually rotated. The rotation of the inner part of the rotating component 3 drives the rotation between the inner parts. Due to the meshing rotation between the inner parts, the rotation of the inner part of the rotating component 3 drives the rotation of the inner part of the lifting component 4. Due to the threaded installation between the inner parts of the lifting component 4, the rotation of the inner part of the lifting component 4 drives the movable part to move up and down. The movement of the movable part of the inner part of the lifting component 4 drives the movement of the inner part of the valve core component 5. The movement of the inner part of the valve core component 5 makes the elastic part of the valve core component 5 move. The movement of the elastic part makes the valve core device move. The movement of the valve core device makes it possible to adjust the switch size of the overflow valve, thereby facilitating the adjustment of the tightness of the elastic member, thereby achieving the purpose of saving time and effort. Subsequently, the inner part of the fixing component 2 can be loosened, and the inner part of the fixing component 2 moves so that the clamping mechanism moves to the surface of the valve core device under the action of the spring elastic force, so that it fully fixes and clamps the valve core device, thereby achieving the purpose of clamping and fixing the valve core device.

[0029] Therefore, by manually rotating the inner parts of the rotating component 3, the rotation of the inner parts of the rotating component 3 drives the rotation of the inner parts. Due to the meshing rotation between the inner parts, the rotation of the inner parts of the rotating component 3 drives the rotation of the inner parts of the lifting component 4. Due to the threaded installation between the inner parts of the lifting component 4, the rotation of the inner parts of the lifting component 4 drives the movable parts to move up and down. The movement of the movable parts of the inner parts of the lifting component 4 drives the movement of the inner parts of the valve core component 5. The movement of the inner parts of the valve core component 5 causes the elastic parts of the valve core component 5 to move. The movement of the elastic parts causes the valve core device to move. The movement of the valve core device causes the switch size of the overflow valve to be adjusted and controlled, thereby facilitating the adjustment of the tightness of the elastic parts, thereby achieving the purpose of saving time and effort.

[0030] Therefore, by loosening the inner part of the fixing assembly 2, the inner part of the fixing assembly 2 moves so that the clamping mechanism moves to the surface of the valve core device under the action of the spring force, so that it can fully clamp the valve core device, thereby achieving the purpose of clamping and fixing the valve core device 502.

[0031] In one embodiment, for the above-mentioned support assembly 1, the support assembly 1 includes a valve body 101, a liquid inlet pipe 102 is fixedly installed at the bottom of the valve body 101, a liquid outlet pipe 103 is fixedly installed at one side of the valve body 101, and a valve shell 104 is fixedly installed at the top of the valve body 101.

[0032] The valve housing 104 is mainly used to support and install the rotating assembly 3 , the lifting assembly 4 , the valve core assembly 5 and the fixed assembly 2 .

[0033] In one embodiment, for the above-mentioned rotating assembly 3, the rotating assembly 3 includes a first rotating rod 302 and four second rotating rods 305, the first rotating rod 302 is rotatably installed on the top of the valve housing 104, the bottom end of the first rotating rod 302 is fixedly installed with a knob 301, the bottom end of the first rotating rod 302 is fixedly installed with a driving gear 303, the four second rotating rods 305 are all rotatably installed in the inner cavity of the valve housing 104, the four second rotating rods 305 are all fixedly installed with driven gears 304, and the driving gear 303 is meshed and rotated with the four driven gears 304.

[0034] In one embodiment, for the above-mentioned lifting component 4, the lifting component 4 includes four slide grooves 401 and four threaded rods 403. The four slide grooves 401 are respectively opened on the side of the inner cavity of the valve housing 104, and sliders 402 are slidably installed in the four slide grooves 401. A movable plate 405 is fixedly installed on one side of the four sliders 402. The four threaded rods 403 are respectively fixedly installed on the bottom ends of the four second rotating rods 305. The surfaces of the four threaded rods 403 are threadedly installed with threaded cylinders 404, and the four threaded cylinders 404 are fixedly installed with the movable plate 405.

[0035] In one embodiment, for the above-mentioned valve core assembly 5, the valve core assembly 5 includes a connecting rod 501 and a limit plate 504, the connecting rod 501 is fixedly installed at the bottom of the movable plate 405, a valve core device 502 is fixedly installed at the bottom of the connecting rod 501, the limit plate 504 is fixedly installed in the inner cavity of the valve housing 104, a second spring 503 is fixedly installed on the top of the limit plate 504, the top of the second spring 503 is fixedly installed in the inner cavity of the valve housing 104, and one end of the connecting rod 501 passes through the limit plate 504 and is located in the second spring 503.

[0036] In order to facilitate the adjustment of the tightness of the elastic member, the knob 301 can be manually rotated, and the rotation of the knob 301 drives the first rotating rod 302 to rotate, and the rotation of the first rotating rod 302 drives the driving gear 303 to rotate. Due to the meshing rotation of the driving gear 303 and the driven gear 304, the driving gear 303 rotates to drive the driven gear 304 and the second rotating rod 305 to rotate, and the second rotating rod 305 rotates to drive the threaded rod 403 to rotate. Due to the threaded installation of the threaded rod 403 and the threaded cylinder 404, the threaded rod 403 rotates to drive the threaded cylinder 404 and the movable plate 405 to move, and the movement of the movable plate 405 drives the connecting rod 501, the second spring 503 and the valve core device 502 to move, so that the second spring 503 is compressed, and the movement of the valve core device 502 makes it possible to adjust the switch size of the overflow valve, thereby facilitating the adjustment of the tightness of the elastic member, thereby saving time and effort.

[0037] In one embodiment, for the above-mentioned fixing component 2, the fixing component 2 includes a fixing frame 202 and a movable rod 204, the movable rod 204 is slidably installed in the inner cavity of the valve housing 104, a clamping frame 205 is fixedly installed at one end of the movable rod 204, and a pull plate 201 is fixedly installed at the other end of the movable rod 204, a first spring 203 is fixedly installed on one side of the clamping frame 205, the first spring 203 is fixedly installed in the inner cavity of the valve housing 104, the movable rod 204 is located in the first spring 203, and the fixing frame 202 is fixedly installed on one side of the inner cavity of the valve housing 104.

[0038] When clamping and fixing the adjusted elastic member, the pull plate 201 can be manually loosened, and the pull plate 201 moves so that the clamping frame 205 can fully clamp and fix the adjusted elastic member under the action of the elastic force of the first spring 203, thereby achieving the purpose of clamping and fixing the adjusted elastic member.

[0039] In summary, with the aid of the above technical solution of the utility model, by manually rotating the knob 301, the knob 301 rotates to drive the first rotating rod 302 to rotate, the first rotating rod 302 rotates to drive the driving gear 303 to rotate, due to the meshing rotation of the driving gear 303 and the driven gear 304, the driving gear 303 rotates to drive the driven gear 304 and the second rotating rod 305 to rotate, the second rotating rod 305 rotates to drive the threaded rod 403 to rotate, due to the threaded installation of the threaded rod 403 and the threaded barrel 404, the threaded rod 403 rotates to drive the threaded barrel 404 and the movable plate 405 moves, and the movable plate 405 moves, driving the connecting rod 501, the second spring 503 and the valve core device 502 to move, so that the second spring 503 is compressed, and the movement of the valve core device 502 makes it possible to adjust the switch size of the relief valve, thereby facilitating the adjustment of the tightness of the elastic member, thereby achieving the purpose of saving time and effort, and by manually loosening the pull plate 201, the pull plate 201 moves so that the clamping frame 205, under the action of the elastic force of the first spring 203, fully clamps and fixes the adjusted elastic member, thereby achieving the purpose of clamping and fixing the adjusted elastic member.

[0040] Through the above technical scheme, by manually rotating the inner parts of the rotating component 3, the rotation of the inner parts of the rotating component 3 drives the rotation of the inner parts. Due to the meshing rotation between the inner parts, the rotation of the inner parts of the rotating component 3 drives the rotation of the inner parts of the lifting component 4. Due to the threaded installation between the inner parts of the lifting component 4, the rotation of the inner parts of the lifting component 4 drives the movable parts to move up and down. The movement of the movable parts of the inner parts of the lifting component 4 drives the movement of the inner parts of the valve core component 5. The movement of the inner parts of the valve core component 5 causes the elastic parts of the valve core component 5 to move. The movement of the elastic parts causes the valve core device to move. The movement of the valve core device causes the switch size of the overflow valve to be adjusted and controlled, thereby facilitating the adjustment of the tightness of the elastic parts, thereby achieving the purpose of saving time and effort.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A relief valve with adjustable elastic tightness, comprising a support assembly (1), characterized in that: A rotating assembly (3) is rotatably mounted in the inner cavity of the support assembly (1); a lifting assembly (4) is fixedly mounted at the bottom end of the rotating assembly (3); the lifting assembly (4) is slidably mounted in the support assembly (1); a valve core assembly (5) is fixedly mounted at the bottom of the lifting assembly (4); a fixed assembly (2) is slidably mounted in the inner cavity of the support assembly (1); the fixed assembly (2) and the valve core assembly (5) are assembled together.

2. The relief valve with adjustable elastic tightness according to claim 1, characterized in that: The support assembly (1) comprises a valve body (101), a liquid inlet pipe (102) is fixedly mounted on the bottom of the valve body (101), a liquid outlet pipe (103) is fixedly mounted on one side of the valve body (101), and a valve housing (104) is fixedly mounted on the top of the valve body (101).

3. The relief valve with adjustable elastic tightness according to claim 2, characterized in that: The rotating assembly (3) comprises a first rotating rod (302) and four second rotating rods (305); the first rotating rod (302) is rotatably mounted on the top of the valve housing (104); a knob (301) is fixedly mounted on the bottom end of the first rotating rod (302); a driving gear (303) is fixedly mounted on the bottom end of the first rotating rod (302); the four second rotating rods (305) are rotatably mounted in the inner cavity of the valve housing (104); the four second rotating rods (305) are fixedly mounted with driven gears (304); the driving gear (303) is meshed and rotated with the four driven gears (304).

4. The relief valve with adjustable elastic tightness according to claim 3, characterized in that: The lifting assembly (4) includes four slide grooves (401) and four threaded rods (403). The four slide grooves (401) are respectively opened on the inner cavity side of the valve housing (104). Slide blocks (402) are slidably installed in the four slide grooves (401). A movable plate (405) is fixedly installed on one side of the four slide blocks (402). The four threaded rods (403) are respectively fixedly installed on the bottom ends of the four second rotating rods (305). Threaded cylinders (404) are threadedly installed on the surfaces of the four threaded rods (403). The four threaded cylinders (404) are fixedly installed with the movable plate (405).

5. The relief valve with adjustable elastic tightness according to claim 4, characterized in that: The valve core assembly (5) comprises a connecting rod (501) and a limiting plate (504), wherein the connecting rod (501) is fixedly mounted on the bottom of the movable plate (405), a valve core device (502) is fixedly mounted on the bottom of the connecting rod (501), the limiting plate (504) is fixedly mounted in the inner cavity of the valve housing (104), a second spring (503) is fixedly mounted on the top of the limiting plate (504), the top end of the second spring (503) is fixedly mounted in the inner cavity of the valve housing (104), and one end of the connecting rod (501) passes through the limiting plate (504) and is located in the second spring (503).

6. The relief valve with adjustable elastic tightness according to claim 5, characterized in that: The fixing assembly (2) comprises a fixing frame (202) and a movable rod (204), wherein the movable rod (204) is slidably mounted in the inner cavity of the valve housing (104), a clamping frame (205) is fixedly mounted on one end of the movable rod (204), and a pulling plate (201) is fixedly mounted on the other end of the movable rod (204), a first spring (203) is fixedly mounted on one side of the clamping frame (205), the first spring (203) is fixedly mounted in the inner cavity of the valve housing (104), the movable rod (204) is located in the first spring (203), and the fixing frame (202) is fixedly mounted on one side of the inner cavity of the valve housing (104).

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