Needle valve matching part with two conical sealed ends of needle valve

Abstract

The needle valve matching part comprises a valve body, installation hoops are fixedly arranged at the two ends of the valve body respectively, installation threads are arranged on the inner sides of the installation hoops, limiting rings are arranged on the two sides of the outer wall of the valve body respectively, and arc-shaped plates are detachably and fixedly clamped at the lower ends of the limiting rings. A lifting rod structure is fixedly arranged at the bottom of the arc-shaped plate, a valve pipe is installed at the top of the valve body, a connecting block is installed at the top of the valve pipe, a sleeve block is installed at the top of the connecting block, a valve rod is installed in the sleeve block in a threaded mode, a sealing piece is fixedly arranged at the bottom end of the valve rod, a sealing hole is formed in the valve body, and a sealing plug of the sealing piece is arranged in the sealing hole. The outer ring block drives the valve rod to move up and down through the supporting block and the inner ring block, and the sealing piece moves up and down in the sealing hole, so that the opening degree of the sealing hole is changed, and the fluid flow is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to needle valve coupling technical field especially is a kind of needle valve coupling that needle valve is two-end conical seal. BACKGROUND

[0002] Needle valve coupling is a kind of valve for accurately controlling fluid flow, its name comes from its internal needle valve core, the main function of needle valve is to control the flow of fluid by adjusting the position of valve core, it is usually used in occasions needing accurate flow control.

[0003] The existing needle valve coupling is difficult to adjust its installation height according to actual needs, and the existing needle valve coupling is not convenient to operate when adjusting flow, because the utility model provides a kind of needle valve coupling that needle valve is two-end conical seal to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the defects existing in the prior art, the utility model aims at providing a kind of needle valve coupling that needle valve is two-end conical seal.

[0005] To achieve the above object, the utility model provides a kind of needle valve coupling that needle valve is two-end conical seal, including valve body, the both ends of valve body are respectively fixedly provided with mounting hoop, the inner side of mounting hoop is provided with mounting thread, the both sides of the outer wall of valve body are respectively provided with limit ring, the lower end of limit ring is detachably fixed and clamped with arc plate, the bottom of arc plate is fixedly provided with lifting rod structure, the bottom of lifting rod structure is fixedly provided with positioning block, the both sides of positioning block are respectively provided with positioning screw, and the positioning block is fixed by positioning screw.

[0006] Further, the lifting rod structure includes fixed rod, the fixed rod is fixedly arranged on the top of the positioning block, the movable rod is movably inserted into the top of the fixed rod, the top of the movable rod is fixedly connected with the arc plate, a plurality of positioning screw holes are longitudinally arranged on the outer wall of the movable rod, the upper end of the fixed rod is screw-connected with positioning screw rod on the outer side, and the movable rod is fixed by rotating the positioning screw rod into the positioning screw hole.

[0007] Further, the top of the valve body is provided with valve pipe, the top of the valve pipe is provided with connecting block, the top of the connecting block is provided with sleeve block, the valve rod is screw-connected in the sleeve block, the bottom end of the valve rod is fixedly provided with sealing element, the valve body is provided with sealing hole, the sealing element is sealed and plugged in the sealing hole, the first flow hole is formed on one side of the sealing hole, the second flow hole is arranged at the bottom of the sealing hole, the second flow hole is L-shaped, and the second flow hole is arranged on the other side of the sealing hole.

[0008] Further, the upper part of the valve rod is fixedly provided with a screw rod, the screw rod penetrates the inner ring block and extends upward, the upper end of the screw rod is threadedly sleeved with a fixing sleeve, and the screw rod is fixed through the screwing of the fixing sleeve.

[0009] Further, the inner wall of the outer ring block is uniformly and fixedly provided with a plurality of supporting blocks, and the supporting blocks are fixedly connected with inner ring blocks at the end away from the outer ring block.

[0010] Further, the top of the valve rod is fixedly provided with a screw rod, the screw rod top penetrates the inner ring block and extends upward, the screw rod's upper end is threadedly sleeved with a fixed sleeve, and the screw rod upper end is fixed through the screwing of the fixed sleeve.

[0011] Further, the screw rod is threadedly matched with the inner ring block, and the convex blocks are six in total.

[0012] Compared with the prior art, the valve body has the advantages that:

[0013] 1. The installation hoop, limiting ring, arc-shaped plate and lifting rod structure are arranged on the outer wall of the valve body, the arc-shaped plate is detachably fixed at the lower end of the limiting ring according to the required height, the movable rod is inserted into the fixed rod to a suitable depth, the movable rod is fixed by rotating into the positioning screw hole through the positioning screw, the installation height of the needle valve pair can be adjusted, and the problem that the installation height of the needle valve pair cannot be adjusted according to actual needs is solved.

[0014] 2. The sealing element is arranged in the sealing hole, the outer ring block is rotated, the outer ring block drives the valve rod to move up and down through the supporting blocks and the inner ring block, the sealing element moves up and down in the sealing hole, the opening and closing degree of the sealing hole is changed, and the flow of fluid is adjusted conveniently.

[0015] 3. The convex blocks are uniformly and fixedly arranged on the outer wall of the outer ring block, the screw rod is threadedly sleeved with the fixed sleeve at the upper end, the screw rod is fixed by screwing the fixed sleeve, and the valve rod and the inner ring block are convenient to install and dismount. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description of the utility model, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a perspective view of the valve body provided by the utility model;

[0018] Figure 2is the front view provided by the utility model;

[0019] Figure 3 is the top view of the valve body provided by the utility model;

[0020] Figure 4 is the schematic diagram of the lifting rod structure provided by the utility model;

[0021] Figure 5 is the enlarged schematic diagram of A provided by the utility model;

[0022] Figure 6 is the schematic diagram provided by the utility model;

[0023] Mark explanation:

[0024] 1, outer ring block; 2, protruding block; 3, valve stem; 4, cover block; 5, connecting block; 6, valve pipe; 7, mounting hoop; 8, valve body; 9, support block; 10, screw rod; 11, fixed cover; 12, inner ring block; 13, limiting ring; 14, arc plate; 15, lifting rod structure; 151, movable rod; 152, positioning screw hole; 153, positioning screw rod; 154, fixed rod; 16, positioning screw; 17, positioning block; 18, sealing element; 19, sealing hole; 20, second flow hole; 21, first flow hole. Specific implementation

[0025] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope protected by the utility model.

[0026] The terms "include" and "have" and any variations thereof in the specification and claims of the utility model and the above drawing description are intended to cover the non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the utility model or the above drawings are used to distinguish different objects, not to describe a specific order.

[0027] Please refer to Figures 1-6The utility model provides a needle valve couple that needle valve is two end conical seal, including valve body 8, the both ends of valve body 8 are fixedly provided with mounting hoop 7 respectively, the inside of mounting hoop 7 is provided with mounting screw, the both sides of the outer wall of valve body 8 are provided with limit ring 13 respectively, the lower end of limit ring 13 is detachably fixed and clamped with arc plate 14, the bottom of arc plate 14 is fixedly provided with lifting rod structure 15, the bottom of lifting rod structure 15 is fixedly provided with locating block 17, the both sides of locating block 17 are provided with locating screw 16 respectively, and locating block 17 is fixed through locating screw 16, and lifting rod structure 15 includes fixed rod 154, and fixed rod 154 is fixedly arranged at the top of locating block 17, and movable rod 151 is movably inserted into the top of fixed rod 154, and the top of movable rod 151 is fixedly connected with arc plate 14, and a plurality of locating screw holes 152 are longitudinally arranged on the outer wall of movable rod 151, and the outer side of the upper end of fixed rod 154 is screwedly provided with locating screw rod 153, and movable rod 151 is fixed by being screwed into locating screw hole 152 through locating screw rod 153, through the structure such as mounting hoop 7, limit ring 13, arc plate 14 and lifting rod structure 15, the limit ring 13 is arranged at the both sides of the outer wall of valve body 8, according to the need height, the arc plate 14 is detachably fixedly arranged at the lower end of limit ring 13, the movable rod 151 is inserted into fixed rod 154 to the suitable depth, and the movable rod 151 is fixed by being screwed into locating screw hole 152 through locating screw rod 153, the installation height of needle valve couple can be adjusted, and the problem that the installation height of the existing needle valve couple is difficult to adjust according to actual needs is solved.

[0028] As the improvement of the above technical scheme, the top of the valve body 8 is provided with a valve pipe 6, the top of the valve pipe 6 is provided with a connecting block 5, the top of the connecting block 5 is provided with a sleeve block 4, the sleeve block 4 is screwedly provided with a valve rod 3, the bottom end of the valve rod 3 is fixedly provided with a sealing element 18, the valve body 8 is provided with a sealing hole 19, the sealing element 18 is sealingly arranged in the sealing hole 19, one side of the sealing hole 19 is provided with a first flow hole 21, the bottom of the sealing hole 19 is provided with a second flow hole 20, the second flow hole 20 is L-shaped, and the second flow hole 20 is located on the other side of the sealing hole 19, by rotating the outer ring block 1, the outer ring block 1 drives the valve rod 3 to move up and down through the support block 9 and the inner ring block 12, the sealing element 18 moves up and down in the sealing hole 19, so as to change the opening degree of the sealing hole 19, thereby realizing the adjustment of the fluid flow, and the adjustment is convenient.

[0029] As the improvement of the above technical scheme, the upper portion of the valve rod 3 is provided with an outer ring block 1, the outer wall of the outer ring block 1 is uniformly provided with a plurality of protrusions 2, the inner wall of the outer ring block 1 is uniformly provided with a plurality of supporting blocks 9, the end of the supporting block 9 away from the outer ring block 1 is fixedly connected with an inner ring block 12, the top of the valve rod 3 is fixedly provided with a screw rod 10, the top of the screw rod 10 penetrates through the inner ring block 12 and extends upward, the upper end of the screw rod 10 is threadedly provided with a fixing sleeve 11, the upper end of the screw rod 10 is fixed by screwing the fixing sleeve 11, the screw rod 10 is threadedly matched with the inner ring block 12, the six protrusions 2 are provided, the outer ring block 1 is provided, the protrusions 2 uniformly arranged on the outer wall of the outer ring block 1 facilitate the rotation of the outer ring block 1, the screw rod 10, the inner ring block 12 and the fixing sleeve 11 and other structures are provided, the upper end of the screw rod 10 is threadedly provided with the fixing sleeve 11, the screw rod 10 can be fixed by screwing the fixing sleeve 11, and the valve rod 3 and the inner ring block 12 are convenient to install and dismount.

[0030] The working principle and the use method of the utility model are as follows:

[0031] When in use, the limiting rings 13 are arranged on the both sides of the outer wall of the valve body 8, the arc-shaped plates 14 are detachably and fixedly arranged at the lower end of the limiting rings 13 according to the required height, the adjusting rods 151 are inserted into the fixed rods 154 to the appropriate depth, the adjusting rods 151 are fixed by being screwed into the positioning screw holes 152 through the positioning screws 153, the installation height of the needle valve pair can be adjusted, the protrusions 2 are uniformly arranged on the outer wall of the outer ring block 1, which facilitates the rotation of the outer ring block 1, the upper end of the screw rod 10 is threadedly provided with the fixing sleeve 11, the screw rod 10 can be fixed by screwing the fixing sleeve 11, the valve rod 3 and the inner ring block 12 are convenient to install and dismount, the outer ring block 1 drives the valve rod 3 to move up and down through the supporting blocks 9 and the inner ring block 12 by rotating the outer ring block 1, the sealing element 18 moves up and down in the sealing hole 19, thereby changing the opening and closing degree of the sealing hole 19, and the fluid flow is adjusted, and the adjustment is convenient.

[0032] The above merely serves to illustrate the technical scheme of the utility model, rather than limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced equivalently; any equivalent structure or equivalent process conversion made by referring to the contents of the utility model specification and drawings, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A needle valve pair having a conical seal at both ends, characterized in that: Including the valve body (8), both ends of the valve body (8) are respectively provided with mounting hoop (7), the inner side of the mounting hoop (7) is provided with mounting thread, the outer wall of the valve body (8) is respectively provided with limit ring (13), the lower end of the limit ring (13) is detachably fixed and clamped with arc plate (14), the bottom of the arc plate (14) is fixedly provided with lifting rod structure (15), the bottom of the lifting rod structure (15) is fixedly provided with positioning block (17), the front and back sides of the positioning block (17) are respectively provided with positioning screw (16), the positioning block (17) is fixed through the positioning screw (16), the top of the valve body (8) is provided with valve pipe (6), the top of the valve pipe (6) is provided with connecting block (5), the top of the connecting block (5) is provided with sleeve block (4), the valve rod (3) is screw mounted in the sleeve block (4), the bottom end of the valve rod (3) is fixedly provided with sealing element (18), the valve body (8) is provided with sealing hole (19).

2. A needle valve pair having a conical seal at both ends according to claim 1, characterized in that: The lifting rod structure (15) includes a fixed rod (154) fixedly arranged on the top of the positioning block (17), an active rod (151) movably inserted into the top of the fixed rod (154), the top end of the active rod (151) is fixedly connected with the arc plate (14), a plurality of positioning screw holes (152) are longitudinally arranged on the outer wall of the active rod (151), a positioning screw rod (153) is screw arranged on the outer side of the upper end of the fixed rod (154), and the active rod (151) is fixed by rotating the positioning screw rod (153) into the positioning screw hole (152).

3. A needle valve pair having a needle valve with a conical seal at both ends according to claim 2, characterized in that: The sealing element (18) is arranged in the sealing hole (19), a first flow hole (21) is formed on one side of the sealing hole (19), a second flow hole (20) is arranged at the bottom of the sealing hole (19), the second flow hole (20) is L-shaped, and the second flow hole (20) is arranged on the other side of the sealing hole (19).

4. A needle valve pair having a needle valve with a conical seal at both ends according to claim 3, characterized in that: An outer ring block (1) is arranged above the valve rod (3), and a plurality of convex blocks (2) are uniformly fixed on the outer wall of the outer ring block (1).

5. A needle valve pair having a needle valve with a conical seal at both ends according to claim 4, characterized in that: A plurality of support blocks (9) are uniformly fixed on the inner wall of the outer ring block (1), and an inner ring block (12) is fixedly connected to one end of the support block (9) away from the outer ring block (1).

6. A needle valve pair having a needle valve with a conical seal at both ends according to claim 5, characterized in that: A screw rod (10) is fixedly arranged on the top of the valve rod (3), the screw rod (10) penetrates through the inner ring block (12) and extends upward, a fixed sleeve (11) is screw arranged on the upper end of the screw rod (10), and the screw rod (10) is fixed by rotating the fixed sleeve (11).

7. A needle valve pair having a conical seal at both ends according to claim 6, characterized in that: The screw rod (10) is screw matched with the inner ring block (12), and the convex blocks (2) are six in total.

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