Explosion relief valve

Abstract

The utility model provides an explosion relief valve, which relates to the field of hydraulic relief valves and comprises a valve body, a valve cylinder is fixedly connected to the upper end of the outside of the valve body, and a valve head is fixedly connected to the outside of the lower end of the valve body; a pressure adjusting screw is connected to the upper side of the interior of the valve cylinder through threads, a base is slidably connected to the interior of the valve cylinder, and a spring is arranged between the base and the pressure adjusting screw. According to the anti-explosion safety valve, through the arrangement of the valve cover, the locking assembly and the strip-shaped groove, the pressure adjusting screw can be effectively locked and limited, the situation that the pressure adjusting screw is loosened due to stress is avoided, the situation that the pressure value borne by the anti-explosion safety valve is changed is avoided, and then the use reliability of the anti-explosion safety valve is improved; the explosion safety valve solves the problems that when an existing explosion safety valve is used, although the pressure bearing value of the safety valve can be adjusted through a pressure adjusting screw, a spring and a base, the pressure adjusting screw in threaded connection is prone to being stressed and loosened, and the reliability of the explosion safety valve in the using process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic safety valve technical field especially relates to a kind of explosion-proof safety valve. BACKGROUND

[0002] At present, in the process of coal mining, a large amount of hydraulic mechanical equipment needs to be used, and these hydraulic mechanical equipment needs to cooperate with hydraulic system when being used. In order to ensure the safety of the hydraulic system when operating, explosion-proof safety valve will be used. The explosion-proof safety valve plays a crucial role in the hydraulic system. When the pressure in the hydraulic system exceeds the set safety pressure value, the hydraulic safety valve will automatically open, so that the excessive pressure is discharged through the safety valve, thereby protecting the elements and equipment in the system from being damaged.

[0003] After searching, the existing patent application No. CN202323501400.4 discloses an explosion-proof safety valve. Although the explosion-proof safety valve can adjust the bearing pressure value of the safety valve by adjusting screw, spring and base when being used, the adjusting screw is connected to the inside of the valve cylinder by thread after being adjusted by rotation. The adjusting screw connected by thread is easy to be loose under stress, so that the bearing pressure value of the explosion-proof safety valve changes, thereby reducing the reliability of the explosion-proof safety valve when being used. UTILITY MODEL CONTENT

[0004] The explosion-proof safety valve of the present disclosure can adjust the bearing pressure value of the safety valve by adjusting screw, spring and base when being used. After the pressure value of the explosion-proof safety valve is adjusted, the valve cover is installed on the upper end of the valve body, and at this time, the lower end of the four locking plates is inserted into the four strip-shaped grooves respectively, so that the adjusting screw cannot be rotated, thereby effectively locking and limiting the adjusting screw. The adjusting screw is prevented from being loose under stress, the bearing pressure value of the explosion-proof safety valve is prevented from changing, and the reliability of the explosion-proof safety valve when being used is improved.

[0005] Described retaining mechanism outer cover is a hollow tube, and its upper end is provided with a circle, and its lower end is provided with a circle, and its lower end is provided with a circle.

[0006] In at least some embodiments, a fluid inlet is provided on the right side of the valve body; a limit ring is fixedly connected to the upper end of the outer circumference of the valve cylinder, and four plug sleeves are fixedly connected to the outer circumference of the limit ring in an annular array.

[0007] In at least some embodiments, two plug-in boards are fixedly connected to the upper side of the outer peripheral surface of the valve cylinder in a bilaterally symmetrical manner, and a rectangular card interface is provided on the upper end surface of each plug-in board.

[0008] In at least some embodiments, four positioning pins are fixedly connected to the lower side of the outer peripheral surface of the valve cover in an annular array, and the four positioning pins are used to be plugged into four plug sleeves.

[0009] In at least some embodiments, a clip support block is fixedly connected to the left and right sides of the outer peripheral surface of the valve cover, and two rectangular sliding openings are provided on the upper end surface of each clip support block, an elastic clip is slidably connected inside each rectangular sliding opening, and a spring is installed inside each rectangular sliding opening.

[0010] In at least some embodiments, when the valve cover is mounted on the upper portion of the valve body, the four elastic clips are respectively engaged with the two rectangular clip interfaces.

[0011] In at least some embodiments, the locking assembly further includes an annular fixing plate, which is fixedly connected to the upper ends of the four vertical sliding rods.

[0012] In at least some embodiments, when the locking assembly is in the locked limit state, the lower ends of the four locking plug plates are respectively inserted into four of the strip-shaped grooves.

[0013] The utility model provides an explosion-proof safety valve, which has the following beneficial effects:

[0014] 1、By the setting of the valve cover, locking assembly and strip-shaped groove, when the pressure value borne by the explosion-proof safety valve is adjusted, the valve cover is installed on the upper end of the valve body, and at this time, the lower end of the four locking inserts is respectively inserted into the four strip-shaped grooves, so that the pressure regulating screw cannot be rotated, thereby effectively locking and limiting the pressure regulating screw, avoiding the loosening of the pressure regulating screw under stress, avoiding the change of the pressure value borne by the explosion-proof safety valve, and thereby improving the reliability of the explosion-proof safety valve in use.

[0015] 2、By the setting of the elastic buckle, the insertion plate and the rectangular clamping interface, when installing the valve cover, only the four positioning insertion columns are aligned with the four insertion sleeves, then the valve cover is moved downward, the four positioning insertion columns are inserted into the four insertion sleeves, and then when the valve cover is moved to the limit position, the four elastic buckles are respectively clamped with the two rectangular clamping interfaces, so that the valve cover is effectively limited on the upper end of the valve body, improving the convenience of installing the valve cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present application, and are not a limitation of the present application.

[0018] In the drawings:

[0019] Figure 1 The structure schematic view of the overall structure of the present application is shown;

[0020] Figure 2 The structure schematic view of the valve cylinder, limiting ring, valve cover and pressure regulating screw of the present application is shown;

[0021] Figure 3 The structure schematic view of the valve cylinder and valve cover of the present application is shown after being split;

[0022] Figure 4 The structure schematic view of the valve cover of the present application is shown;

[0023] Figure 5 The structure schematic view of the pressure regulating screw of the present application is shown;

[0024] Figure 6 The structure schematic view of the locking assembly of the present application is shown.

[0025] LIST OF REFERENCE NUMERALS

[0026] 1, valve body; 101, valve cylinder; 102, valve head; 103, fluid inlet; 104, limiting ring; 105, insertion sleeve; 106, insertion plate; 107, rectangular clamping interface;

[0027] 2, valve cover; 201, positioning column; 202, buckle support block; 203, elastic buckle; 204, rectangular sliding port;

[0028] 3, base;

[0029] 4, pressure regulating screw; 401, strip-shaped groove;

[0030] 5, locking assembly; 501, annular lifting plate; 502, vertical sliding rod; 503, locking plate; 504, annular fixing plate. DETAILED DESCRIPTION

[0031] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Embodiment one: please refer to Figures 1 to 6 :

[0033] The utility model proposes a kind of explosion-proof safety valve, comprising: valve body;1, valve body;1 outside upper end is fixedly connected with valve cylinder;101, and valve body;1 lower end outside is fixedly connected with valve head;102;Valve cylinder;101 inside upper side is connected with pressure regulating screw;4 by thread, and valve cylinder;101 inside is slidably connected with base;3, and spring is arranged between base;3 and pressure regulating screw;4, strip-shaped groove is arranged in the edge of the upper end surface of pressure regulating screw;401, and hexagonal recess is formed in the middle of the upper end surface of pressure regulating screw;Valve body;1 upper end is equipped with valve cover;2, and valve cover;2 is provided with locking assembly;5;Locking assembly;5 includes annular lifting plate;501, vertical sliding rod;502 and locking plate;503, annular lifting plate;501 upper end surface edge is fixedly connected with six vertical sliding rods;502 penetrating valve cover;2 top, and six vertical sliding rods;502 are slidably connected with valve cover;2, and spring is arranged in the outside of each vertical sliding rod;502 in the inside of valve cover;2, annular lifting plate;501 bottom end surface is provided with four locking plates;503 in annular array, for with strip-shaped groove;401 plug connection, realize the limit of pressure regulating screw;4, locking assembly;5 also includes annular fixing plate;504, annular fixing plate;504 is fixedly connected on the upper end of four vertical sliding rods;502.

[0034] Valve body; 1 right side is provided with fluid inlet; 103; Valve barrel; 101 outer peripheral surface upper end fixedly connected with limiting ring; 104, and the limiting ring; 104 outer peripheral surface is annular array fixedly connected with four plug-in sleeve; 105; Valve cover; 2 outer peripheral surface lower side is annular array fixedly connected with four positioning plug-in column; 201, four positioning plug-in column; 201 for with four plug-in sleeve; 105 plug-in, make valve cover; 2 can obtain effective guiding action when installation.

[0035] When the locking assembly; 5 is in the locking limiting state, the lower end of the four locking plug-in plates; 503 is respectively inserted in the four strip-shaped grooves; 401, at this time the pressure regulating screw; 4 cannot be rotated, so that the pressure regulating screw; 4 is effectively locked and limited, avoiding the loosening of the pressure regulating screw; 4 under stress.

[0036] Example two, on the basis of example one, as shown in Figure 3 And Figure 4 The upper side of the outer peripheral surface of the valve barrel; 101 is fixedly connected with two plug-in plates; 106 in left-right symmetry, and a rectangular clamping port; 107 is formed in the upper end surface of each plug-in plate; 106; The left and right sides of the outer peripheral surface of the valve cover; 2 are fixedly connected with a clasp supporting block; 202, and two rectangular sliding ports; 204 are formed in the upper end surface of each clasp supporting block; 202, and a resilient clasp; 203 is slidably connected in each rectangular sliding port; 204, and a spring; is installed in each rectangular sliding port; 204, when the valve cover; 2 is installed on the upper part of the valve body; 1, the four resilient clasps; 203 are clamped with the two rectangular clamping ports; 107 respectively, which can quickly fix the valve cover; 2, improve the convenience of the valve cover; 2 installation.

[0037] The working principle of the embodiment is as follows: when in use, first, pinch the adjacent two resilient clasps; 203 towards opposite directions at the same time, so that the four resilient clasps; 203 are separated from the two rectangular clamping ports; 107 respectively, so that the valve cover; 2 loses the fixing effect on the upper end of the valve barrel; 101, then slide the valve cover; 2 upwards and remove it, then rotate the pressure regulating screw; 4 according to the pressure requirement, the inner hexagonal wrench is inserted into the hexagonal recess formed in the middle of the upper end surface of the pressure regulating screw; 4, then the pressure regulating screw; 4 is rotated by the inner hexagonal wrench, and the pressure regulating screw; 4 moves up and down under the action of threads after rotation, so that the pressure of the base; 3 moving upwards is adjusted, and finally the pressure value borne by the explosion-proof safety valve is adjusted.

[0038] When the pressure value borne by the explosion-proof safety valve is adjusted, the valve cover 2 is installed on the upper end of the valve body 1. When installing the valve cover 2, first, the four positioning insertion columns 201 are aligned with the four insertion sleeves 105, then the valve cover 2 is moved downward, the four positioning insertion columns 201 are inserted into the four insertion sleeves 105, the valve cover 2 is effectively guided, then when the valve cover 2 is moved to the limit position, the four elastic buckles 203 are respectively buckled with the two rectangular buckling interfaces 107, the valve cover 2 is effectively limited on the upper end of the valve body 1, at this time, the lower end of the four locking insertion plates 503 is respectively inserted into the four strip-shaped grooves 401, the pressure adjusting screw 4 cannot be rotated, so that the pressure adjusting screw 4 is effectively locked and limited.

[0039] In this article, the following points need attention:

[0040] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0041] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0042] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An explosion-proof safety valve comprising: The utility model provides a valve body (1), the valve body (1) outside upper end fixedly connected with valve cylinder (101), and the valve body (1) lower end outside fixedly connected with valve head (102), its characterized in that, the valve cylinder (101) inside upper side is connected with pressure regulating screw (4) through screw thread, and the valve cylinder (101) inside is connected with base (3) slidingly, and is provided with spring between base (3) and pressure regulating screw (4), the upper end surface edge of pressure regulating screw (4) is arranged with strip recess (401) in annular array, and the upper end surface middle part of pressure regulating screw (4) is arranged with hexagonal recess, the valve body (1) upper end is installed with valve cover (2), and is provided with locking assembly (5) on valve cover (2), locking assembly (5) includes annular lifting plate (501), vertical slide bar (502) and locking plug (503), the upper end surface edge of annular lifting plate (501) is fixedly connected with six vertical slide bars (502) penetrating the top of valve cover (2) in annular array, and six vertical slide bars (502) are connected with valve cover (2) slidingly, and the outside of every vertical slide bar (502) is provided with spring in the inside of valve cover (2), the bottom end surface of annular lifting plate (501) is provided with four locking plugs (503) in annular array.

2. A pressure relief safety valve according to claim 1, characterised in that: The right side of the valve body (1) is provided with a fluid inlet (103); the outer peripheral surface of the valve cylinder (101) is fixedly connected with a limiting ring (104) at the upper end, and the outer peripheral surface of the limiting ring (104) is fixedly connected with four plug-in sleeves (105) in annular array.

3. A pressure relief safety valve according to claim 1, wherein: The outer peripheral surface of the valve cylinder (101) is fixedly connected with two plug-in plates (106) in left-right symmetry at the upper side, and a rectangular clamping port (107) is formed in the upper end surface of each plug-in plate (106).

4. A pressure relief safety valve according to claim 2, wherein: The outer peripheral surface of the valve cover (2) is fixedly connected with four positioning plug-in columns (201) in annular array at the lower side, and the four positioning plug-in columns (201) are used for plug-in connection with the four plug-in sleeves (105).

5. A pressure relief safety valve according to claim 3, wherein: The outer peripheral surface of the valve cover (2) is fixedly connected with a clasp supporting block (202) on each of the left and right sides, a rectangular sliding port (204) is formed in the upper end surface of each clasp supporting block (202), an elastic clasp (203) is slidingly connected in each rectangular sliding port (204), and a spring is arranged in each rectangular sliding port (204).

6. A pressure relief safety valve according to claim 5, wherein: When the valve cover (2) is installed on the upper part of the valve body (1), the four elastic clasps (203) are clamped with the two rectangular clamping ports (107) respectively.

7. A pressure relief safety valve according to claim 1, wherein: The locking assembly (5) further includes an annular fixing plate (504), and the annular fixing plate (504) is fixedly connected to the upper ends of the four vertical slide bars (502).

8. A pressure relief safety valve according to claim 1, wherein: When the locking assembly (5) is in the locking and limiting state, the lower ends of the four locking plugs (503) are respectively plugged into the four strip recesses (401).

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