Explosion-proof instrument valve

Abstract

The utility model relates to the field of instrument valves, in particular to an anti-explosion instrument valve. A guide rod is arranged on the surface of an instrument valve body, a storage block is arranged on the arc-shaped surface of the guide rod, a storage groove is formed in the storage block, a spring is arranged on the surface of the storage groove, a baffle is arranged on the surface of the storage groove, a sliding rod is arranged on the surface of the baffle, and a holding plate is arranged on the surface of the guide rod. The explosion-proof device has the advantages that the sliding block is pressed to move so that the sliding block can be clamped in the containing groove, then the holding plate is rotated to drive the guide rod to rotate, the guide rod can drive the containing block to rotate while rotating, when the sliding rod corresponds to the positioning hole, rotation of the holding plate is stopped, and due to the elasticity of the spring, the sliding block can be clamped in the containing groove; and the spring pushes the baffle to move, so that the sliding rod is clamped in the positioning hole, and the stability of the connection of the explosion-proof instrument valve is realized.

Description

Technical Field

[0001] The utility model relates to the field of instrument valves, in particular to an explosion-proof instrument valve. Background Art

[0002] The instrument valve is a device used to change the passage cross-section and the flow direction of the medium and control the flow of the conveying medium.

[0003] In the prior art, instrument valves are relatively fragile and easily affected by the outside world, and usually require explosion-proof treatment. The explosion-proof shell is installed on the instrument valve by bolting to ensure the stability of the instrument valve during operation.

[0004] However, in actual use, the explosion-proof instrument valve needs to be regularly inspected to ensure its air tightness and explosion-proofness. The explosion-proof shell of the traditional explosion-proof instrument valve is fixed by bolts, and tools are needed for disassembly and assembly, which is very time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof instrument valve to solve the problem proposed in the above background technology that the explosion-proof instrument valve needs to be regularly inspected during actual use to ensure its air tightness and explosion-proofness, while the explosion-proof shell of the traditional explosion-proof instrument valve is fixed by bolts, and tools are needed for disassembly and assembly, which is very time-consuming and labor-intensive.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an explosion-proof instrument valve, the explosion-proof instrument valve comprising:

[0007] The instrument valve body; the surface of the instrument valve body is provided with a mounting groove, the surface of the mounting groove is provided with a guide rod, the arc surface of the guide rod is provided with a storage block, the storage block is provided with a storage groove inside, the surface of the storage groove is provided with a first spring, the surface of the storage groove is provided with a baffle, the surface of the baffle is provided with a sliding rod, and the surface of the guide rod is provided with a grip plate;

[0008] Explosion-proof cover; a guide rod groove is provided on the surface of the explosion-proof cover, an annular groove is provided on the arc surface of the guide rod groove, a groove is provided on the upper surface of the annular groove, a positioning hole is provided on the surface of the explosion-proof cover, a second spring is provided on the surface of the explosion-proof cover, a pressure plate is provided on the surface of the second spring, and a pressure rod is provided on the surface of the pressure plate.

[0009] Preferably, multiple groups of guide rods are provided, and the multiple groups of guide rods are distributed circumferentially on the surface of the installation groove. Multiple groups of guide rod grooves are opened, and the multiple groups of guide rod grooves are distributed circumferentially on the end surface of the explosion-proof cover. The guide rods correspond to the guide rod grooves, the guide rods are clamped in the guide rod grooves, and the guide rods are movably connected to the installation grooves.

[0010] Preferably, a plurality of storage blocks are provided, and the plurality of storage blocks are symmetrically distributed on the arc surface at the upper end of the guide rod, and the size of the storage groove opening is smaller than the size of the baffle, so the baffle will not fall out of the storage groove.

[0011] Preferably, a plurality of sliding rods are provided, and the plurality of sliding rods are symmetrically distributed on the surface of the baffle plate, and the sliding rods correspond to the receiving grooves, and the sliding rods are clamped in the receiving grooves.

[0012] Preferably, there are multiple groups of positioning holes, which are symmetrically distributed on the surface of the explosion-proof cover, and the sliding rod corresponds to the positioning holes. The sliding rod will be stuck in the positioning holes under the support of the spring.

[0013] Preferably, multiple groups of grooves are provided, and the multiple groups of grooves are symmetrically distributed on the end surface of the explosion-proof cover, and the grooves penetrate the end of the explosion-proof cover, the grooves are connected to the annular grooves, the size of the grooves is the same as the storage block, and the storage block is clamped into the annular groove through the grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When assembling the explosion-proof instrument valve, align the guide rod with the guide rod groove, and at the same time align the receiving block with the groove, and clamp the guide rod and the receiving block in the guide rod groove and the groove respectively, then move the explosion-proof cover downward, and when the lower end surface of the explosion-proof cover contacts the upper end surface of the instrument valve body, stop moving the explosion-proof cover. At this time, the guide rod is completely clamped in the guide rod groove, which has a positioning effect on the installation of the explosion-proof instrument valve, and the receiving block is clamped in the annular groove. At this time, press the sliding rod to move, so that the sliding rod is clamped in the receiving groove, and then rotate the grip plate to drive the guide rod to rotate When the guide rod rotates, the storage block will be driven to rotate. When the sliding rod corresponds to the positioning hole, the grip plate stops rotating. Due to the elasticity of the first spring, the first spring will push the baffle to move, so that the sliding rod is stuck in the positioning hole, thereby achieving the stability of the explosion-proof instrument valve connection. When the explosion-proof cover needs to be opened, the pressure plate needs to be pressed to drive the pressure rod to move. The pressure rod corresponds to the sliding rod, and the pressure rod will drive the sliding rod to retract into the storage groove. At this time, the guide rod can be rotated. This structure is simple and easy to operate. No tools are required, which is conducive to improving its use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the instrument valve of the utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the guide rod structure of the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the explosion-proof cover of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the pressing plate of the utility model.

[0021] In the figure: 1 instrument valve body, 2 explosion-proof cover, 3 guide rod, 4 grip plate, 5 sliding rod, 6 storage block, 7 baffle, 8 storage groove, 9 first spring, 10 positioning hole, 11 annular groove, 12 groove, 13 guide rod groove, 14 installation groove, 15 second spring, 16 pressure plate, 17 pressure rod, 18 sliding groove, 19 slider. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: an explosion-proof instrument valve, the surface of the instrument valve body 1 is provided with a mounting groove 14, the surface of the mounting groove 14 is provided with a guide rod 3, the arc surface of the guide rod 3 is provided with a receiving block 6, the storage block 6 is provided with a receiving groove 8, the surface of the receiving groove 8 is provided with a first spring 9, the surface of the receiving groove 8 is provided with a baffle 7, the surface of the baffle 7 is provided with a sliding rod 5, the surface of the guide rod 3 is provided with a grip plate 4, and an explosion-proof cover 2; the surface of the explosion-proof cover 2 is provided with a guide rod groove 13, the arc surface of the guide rod groove 13 is provided with an annular groove 11, the upper surface of the annular groove 11 is provided with a groove 12, and the surface of the explosion-proof cover 2 is provided with a positioning Hole 10, a second spring 15 is provided on the surface of the explosion-proof cover 2, a pressure plate 16 is provided on the surface of the second spring 15, and a pressure rod 17 is provided on the surface of the pressure plate 16. When assembling the explosion-proof instrument valve, the guide rod 3 is aligned with the guide rod groove 13, and the storage block 6 is aligned with the groove 12. The guide rod 3 and the storage block 6 are respectively clamped in the guide rod groove 13 and the groove 12, and then the explosion-proof cover 2 is moved downward. When the lower end surface of the explosion-proof cover 2 contacts the upper end surface of the instrument valve body 1, the movement of the explosion-proof cover 2 is stopped. At this time, the guide rod 3 is completely clamped in the guide rod groove 13, which has a positioning effect on the installation of the explosion-proof instrument valve.

[0025] Embodiment 2

[0026] On the basis of the first embodiment, the stability of the explosion-proof instrument valve connection is achieved, the guide rod 3 is provided with multiple groups, and the multiple groups of guide rods 3 are circumferentially distributed on the surface of the installation groove 14, the guide rod groove 13 is provided with multiple groups, and the multiple groups of guide rod grooves 13 are circumferentially distributed on the end surface of the explosion-proof cover 2, and the guide rod 3 corresponds to the guide rod groove 13, the guide rod 3 is clamped in the guide rod groove 13, and the guide rod 3 is movably connected to the installation groove 14, and the storage block 6 is provided with multiple groups, and the multiple groups of storage blocks 6 are symmetrically distributed on the upper arc surface of the guide rod 3, and the notch size of the storage groove 8 is smaller than the size of the baffle 7, so the baffle 7 will not Disengage from the storage groove 8, the sliding rod 5 is provided with multiple groups, and the multiple groups of sliding rods 5 are symmetrically distributed on the surface of the baffle 7, and the sliding rod 5 corresponds to the storage groove 8, the sliding rod 5 is clamped in the storage groove 8, the positioning holes 10 are provided with multiple groups, and the multiple groups of positioning holes 10 are symmetrically distributed on the surface of the explosion-proof cover 2, and the sliding rod 5 corresponds to the positioning holes 10, the sliding rod 5 will be clamped in the positioning holes 10 under the support of the spring 9, the grooves 12 are provided with multiple groups, and the multiple groups of grooves 12 are symmetrically distributed on the end surface of the explosion-proof cover 2, and the grooves 12 penetrate the end of the explosion-proof cover 2, and the grooves 12 The annular groove 11 is connected, and the size of the groove 12 is the same as that of the storage block 6. The storage block 6 is clamped into the annular groove 11 through the groove 12. The storage block 6 is clamped in the annular groove 11. At this time, the sliding rod 5 is pressed to move, so that the sliding rod 5 is clamped in the storage groove 8. Then the grip plate 4 is rotated to drive the guide rod 3 to rotate. The guide rod 3 rotates and drives the storage block 6 to rotate. When the sliding rod 5 corresponds to the positioning hole 10, the grip plate 4 is stopped from rotating. Due to the elasticity of the first spring 9, the first spring 9 will push the baffle 7 to move, so that the sliding rod 5 is clamped in the positioning hole 10, realizing The stability of the explosion-proof instrument valve connection. When the explosion-proof cover 2 needs to be opened, a slider 19 is provided at the end of the pressure plate 16. The slider 19 is stuck in the sliding groove 18, and the slider 19 and the sliding groove 18 are in a 'T' shape, so that the pressure plate 16 moves in a straight line in the sliding groove 18. Pressing the pressure plate 16 drives the pressure rod 17 to move. The pressure rod 17 corresponds to the sliding rod 5. The pressure rod 17 will drive the sliding rod 5 to shrink into the storage groove 8. At this time, the guide rod 3 can be rotated and the explosion-proof cover 2 can be opened. This structure is simple and easy to operate. It does not require tools, which is conducive to improving its use effect.

[0027] Instrument valves are relatively fragile and easily affected by the outside world, and usually explosion-proof treatment is performed. The explosion-proof shell is installed on the instrument valve to ensure the stability of the instrument valve during operation. When assembling the explosion-proof instrument valve, the guide rod 3 is aligned with the guide rod groove 13, and the storage block 6 is aligned with the groove 12. The guide rod 3 and the storage block 6 are respectively clamped in the guide rod groove 13 and the groove 12, and then the explosion-proof cover 2 is moved downward. When the lower end surface of the explosion-proof cover 2 contacts the upper end surface of the instrument valve body 1, the movement of the explosion-proof cover 2 is stopped. At this time, the guide rod 3 is completely clamped in the guide rod groove 13, which has a positioning effect on the installation of the explosion-proof instrument valve, and the storage block 6 is clamped in the annular groove 11. At this time, the sliding rod 5 is pressed to move, so that The sliding rod 5 is stuck in the storage groove 8, and then the grip plate 4 is rotated to drive the guide rod 3 to rotate. The rotation of the guide rod 3 will drive the storage block 6 to rotate. When the sliding rod 5 corresponds to the positioning hole 10, the grip plate 4 is stopped. Due to the elasticity of the first spring 9, the first spring 9 will push the baffle 7 to move, so that the sliding rod 5 is stuck in the positioning hole 10, thereby achieving the stability of the explosion-proof instrument valve connection. When the explosion-proof cover 2 needs to be opened, the pressure plate 16 needs to be pressed to drive the pressure rod 17 to move. The pressure rod 17 corresponds to the sliding rod 5. The pressure rod 17 will drive the sliding rod 5 to retract into the storage groove 8. At this time, the guide rod 3 can be rotated. This structure is simple and easy to operate. It does not require tools, which is conducive to improving its use effect.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof instrument valve, characterized in that: The explosion-proof instrument valve comprises: An instrument valve body (1); a mounting groove (14) is provided on the surface of the instrument valve body (1); a guide rod (3) is provided on the surface of the mounting groove (14); a receiving block (6) is provided on the arc surface of the guide rod (3); a receiving groove (8) is provided inside the receiving block (6); a first spring (9) is provided on the surface of the receiving groove (8); a baffle (7) is provided on the surface of the receiving groove (8); a sliding rod (5) is provided on the surface of the baffle (7); and a grip plate (4) is provided on the surface of the guide rod (3); An explosion-proof cover (2); a guide rod groove (13) is provided on the surface of the explosion-proof cover (2); an annular groove (11) is provided on the arc surface of the guide rod groove (13); a groove (12) is provided on the upper surface of the annular groove (11); a positioning hole (10) is provided on the surface of the explosion-proof cover (2); a second spring (15) is provided on the surface of the explosion-proof cover (2); a pressure plate (16) is provided on the surface of the second spring (15); and a pressure rod (17) is provided on the surface of the pressure plate (16).

2. An explosion-proof instrument valve according to claim 1, characterized in that: The guide rods (3) are provided in a plurality of groups, and the plurality of groups of guide rods (3) are circumferentially distributed on the surface of the mounting groove (14); the guide rod grooves (13) are provided in a plurality of groups, and the plurality of groups of guide rod grooves (13) are circumferentially distributed on the end surface of the explosion-proof cover (2); the guide rods (3) correspond to the guide rod grooves (13); the guide rods (3) are clamped in the guide rod grooves (13); and the guide rods (3) and the mounting grooves (14) are movably connected.

3. The explosion-proof instrument valve according to claim 1, characterized in that: The storage blocks (6) are provided in a plurality of groups, and the plurality of groups of storage blocks (6) are symmetrically distributed on the arc-shaped surface at the upper end of the guide rod (3), and the size of the slot opening of the storage groove (8) is smaller than the size of the baffle plate (7), so the baffle plate (7) will not fall out of the storage groove (8).

4. The explosion-proof instrument valve according to claim 1, characterized in that: The sliding rods (5) are provided in multiple groups, and the multiple groups of sliding rods (5) are symmetrically distributed on the surface of the baffle (7), and the sliding rods (5) correspond to the storage grooves (8), and the sliding rods (5) are clamped in the storage grooves (8).

5. The explosion-proof instrument valve according to claim 1, characterized in that: The positioning holes (10) are provided in a plurality of groups, and the plurality of positioning holes (10) are symmetrically distributed on the surface of the explosion-proof cover (2), and the sliding rod (5) corresponds to the positioning holes (10), and the sliding rod (5) is held in the positioning holes (10) by the spring (9).

6. The explosion-proof instrument valve according to claim 1, characterized in that: The grooves (12) are provided in a plurality of groups, and the plurality of groups of grooves (12) are symmetrically distributed on the end surface of the explosion-proof cover (2), and the grooves (12) penetrate the end of the explosion-proof cover (2), and the grooves (12) are connected to the annular groove (11), and the size of the grooves (12) is the same as that of the storage block (6), and the storage block (6) is clamped into the annular groove (11) through the grooves (12).

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