Efficient extrusion type automatic sealing gate valve

Abstract

The utility model provides an efficient extrusion type automatic sealing gate valve which comprises a gate valve body, a valve rod, a connecting bearing, a working box, a side protruding block and a track groove, the valve rod is installed on the inner side of the gate valve body and connected with the inner side of the connecting bearing, the outer side of the connecting bearing is connected with the top of the working box, and the side protruding block is fixed to the side of the working box. The side protruding block is connected with a track groove, the track groove is formed in the inner wall of the gate valve body, and a rotating hand wheel is arranged at the upper end of the valve rod. The gate valve comprises a gate valve body, a connecting square seat arranged at the upper end of the gate valve body, a rotating round hole longitudinally formed in the connecting square seat in a penetrating mode, a polygonal seat arranged on the peripheral side of a valve rod, a fixed sliding hole formed in the side end face of the connecting square seat, a prompting device arranged between the connecting square seat and the polygonal seat, and a limiting rod arranged on the connecting square seat in a transverse sliding mode. And the fixing device is arranged between the other end of the limiting rod and the side end face of the connecting square seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a kind of high-efficiency extrusion type automatic sealing gate valve. BACKGROUND

[0002] Gate valve is a kind of valve that is controlled by gate to open and close inside liquid, the movement direction of its gate is perpendicular to fluid direction, according to the different gate, it can be divided into rigid gate valve and elastic gate valve, according to the different starting mode, it can be divided into lift rod gate valve and rotary rod gate valve, since the sealing effect of gate valve is superior to butterfly valve and other valves, and because its internal medium passage is linear, flow resistance is small, and starting is convenient, not prone to water hammer phenomenon, and is widely used.

[0003] Chinese patent No. CN201910349860.9 discloses an extrusion type automatic sealing gate valve, comprising a gate valve body, a valve stem and a positioning block, the inner side of the gate valve body is provided with a valve stem, the side window inner wall is attached to the side of the filter cartridge, and the filter cartridge is installed at the inner bottom of the gate valve body, the bottom end of the valve plate is fixed with a bottom plate, the bottom end of the bottom plate is attached to the upper end surface of the contact plate, and the contact plate is fixed in the gate valve body, the upper end surface of the contact plate is fixed with a positioning block, and the inner side of the positioning block is attached to the side of the bottom plate. The extrusion type automatic sealing gate valve adopts a novel structure design, so that the device can be extruded and self-locked after the valve stem rotates to control the gate to close, to avoid the loosening of the valve stem and the gate affecting the sealing performance, and an extrusion positioning structure is designed to further ensure the stability of the gate when it is closed, and a detachable filter structure is designed, which can also cooperate with the gate to position and seal, to ensure the overall sealing performance of the device.

[0004] Although the above-mentioned patent can realize the overall sealing performance of the device, when the gate valve is in starting state or stopping state, since the hand wheel is directly held to drive the valve stem to rotate, the gate valve in starting state or stopping state is closed or started, it is difficult to improve the working safety of the gate valve. UTILITY MODEL CONTENTS

[0005] The utility model aims at the defects and deficiencies of prior art, and provides a kind of high-efficiency extrusion type automatic sealing gate valve.

[0006] To achieve the above object, the utility model discloses the following technical scheme is: a kind of high-efficiency extrusion type automatic sealing gate valve, including gate valve body, valve stem, connecting bearing, working box, side boss, locus slot, the inside of gate valve body is equipped with valve stem, the inside of valve stem and connecting bearing is mutually connected, the outside of connecting bearing and the top of working box are mutually connected, the side of working box is fixed with side boss, side boss and locus slot are mutually connected, and locus slot is opened on the inner wall of gate valve body, the upper end of the valve stem is provided with rotating hand wheel, further including the connection square seat being set to the upper end of the gate valve body, the rotating circular hole for being rotated in the connection square seat for valve stem and being connected with the inside of gate valve body and being opened on the connection square seat and being communicated with each other, the polygonal seat for being rotated with valve stem and being set to the side of the valve stem and being located in rotating circular hole, the fixed sliding hole being opened in the side end face of the connection square seat and being communicated with rotating circular hole, the prompting device for prompting when the side of polygonal seat and fixed sliding hole are perpendicular and being set between the connection square seat and polygonal seat, the limiting rod for being abutted with polygonal seat at one end when the side of polygonal seat and fixed sliding hole are perpendicular and being transversely slidably set on the connection square seat and being located in rotating circular hole at one end and being located on the outside of connection square seat, the fixing device for being fixed on the connection square seat when the one end of limiting rod and polygonal seat are abutted and being set between the other end of limiting rod and the side end face of connection square seat, polygonal seat is rotatably set in rotating circular hole, limiting rod is circular rod, and limiting rod is located in fixed sliding hole.

[0007] Further improvement is that: the prompting device includes the prompting sliding slot being transversely opened on the connection square seat and being communicated with rotating circular hole, the corresponding card slot for corresponding with the position of prompting sliding slot when the side of polygonal seat and fixed sliding hole are perpendicular and being opened in the side end face of polygonal seat, the prompting sliding rod for being slidably set on the connection square seat and being located in prompting sliding slot and being located in rotating circular hole at one end and being located on the outside of connection square seat at the other end, the driving piece for driving prompting sliding rod and corresponding card slot to cooperate when corresponding card slot and prompting sliding slot are corresponding and being set between the other end of prompting sliding rod and the connection square seat, corresponding card slot is circular arc groove, and one end of prompting sliding rod is circular arc surface.

[0008] Further improvement is that: the driving piece is the connecting plate being set to the other end of prompting sliding rod, and the tension spring being fixedly set between the connecting plate and the connection square seat.

[0009] Further improvement is that: the side of polygonal seat is provided with knock block, corresponding card slot is opened on knock block, one end of prompting sliding rod is provided with knock block for knocking with knock block to produce sound when driving piece drives prompting sliding rod and corresponding card slot to cooperate, and circular arc surface is provided on knock block.

[0010] Further improvement is that the impact block is a ceramic block or a metal aluminum block.

[0011] Further improvement is that the fixing device comprises a clamping rod vertically arranged at the other end of the limiting rod, a fixing block arranged at the connecting square seat and above the limiting rod, and an arc-shaped opening formed in the lower end surface of the fixing block, and the center of the arc-shaped opening and the center of the limiting rod are on the same axis.

[0012] Further improvement is that the clamping rod is two, and the two clamping rods are symmetrically arranged with the limiting rod as the central axis, and the fixing block is two, and the two fixing blocks are symmetrically arranged with the limiting rod as the central axis.

[0013] Further improvement is that the other end surface of the limiting rod is provided with a driving knob for facilitating the rotation of the limiting rod by hand.

[0014] Further improvement is that the polygonal seat is a hexagonal seat.

[0015] After the above technical scheme is adopted, the beneficial effects of the utility model are that when the gate valve is in a starting state or a stopping state, the polygonal seat is rotated to a predetermined position along with the valve rod, at this time, the side of the polygonal seat is perpendicular to the fixed sliding hole, at this time, the prompting device can prompt, then the limiting rod is pushed to approach the polygonal seat on the connecting square seat until the one end of the limiting rod abuts against the side of the polygonal seat, then the limiting rod is fixed on the connecting square seat through the fixing device, the rotating direction of the polygonal seat in the rotating circular hole can be limited, thereby the rotation of the valve rod on the gate valve body is limited, an outsider cannot directly hold the hand wheel to drive the valve rod to rotate, the starting state or the stopping state of the gate valve cannot be caused to be closed or started, and the working safety of the gate valve can be improved.

[0016] Further effect: the extension spring can keep the prompting sliding rod pulled to approach the polygonal seat in the prompting sliding groove, thereby the one end of the prompting sliding rod is kept abutting against the side of the polygonal seat, when the position of the corresponding clamping groove corresponds to the position of the prompting sliding groove, the one end of the prompting sliding rod cooperates with the corresponding clamping groove, thereby the other end of the prompting sliding rod changes in position, and the operator can judge that the side of the polygonal seat is perpendicular to the fixed sliding hole according to the position change of the prompting sliding rod.

[0017] Further effect: when the one end of the prompting sliding rod driven by the extension spring cooperates with the corresponding clamping groove, the impact block and the impact block collide to generate a collision sound, the collision sound is transmitted outward from the gap of the rotating circular hole, and the operator can judge the position of the polygonal seat through the collision sound.

[0018] Further effect: when one end of the limiting rod abuts against the side of the polygon seat, rotating the limiting rod makes the clamping rod move circumferentially on the limiting rod until the clamping rod enters the fixing block from the arc-shaped opening, and the transverse movement of the clamping rod is limited by the fixing block. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 is a structural schematic diagram of the present application;

[0021] Figure 2 is a top view cut diagram of the present application connecting the square seat and the rotating circular hole;

[0022] Figure 3 is an enlarged view of A part corresponding to Figure 1

[0023] Figure 4 is an enlarged view of B part corresponding to Figure 2

[0024] BRIEF DESCRIPTION OF DRAWINGS: gate valve body 1, valve stem 2, connecting bearing 3, working box 4, side protruding block 5, track groove 6, rotating hand wheel 7, connecting square seat 8, rotating circular hole 9, polygon seat 10, fixed sliding hole 11, limiting rod 12, prompt sliding groove 13, corresponding clamping groove 14, prompt sliding rod 15, connecting plate 16, tension spring 17, impact block 18, impact block 19, clamping rod 20, fixing block 21, arc-shaped opening 22, driving knob 23. DETAILED DESCRIPTION

[0025] The present application will be further described in combination with the drawings and specific embodiments.

[0026] Referring to Figures 1 to 4 ​​The technical scheme adopted in the embodiment is shown as follows: a high-efficiency extrusion type automatic sealing gate valve, comprising a gate valve body 1, a valve rod 2, a connecting bearing 3, a working box 4, a side protruding block 5, a track groove 6, the inner side of the gate valve body 1 is provided with the valve rod 2, the valve rod 2 is connected with the inner side of the connecting bearing 3, the outer side of the connecting bearing 3 is connected with the top of the working box 4, the side of the working box 4 is fixed with the side protruding block 5, the side protruding block 5 is connected with the track groove 6, the track groove 6 is arranged on the inner wall of the gate valve body 1, the upper end of the valve rod 2 is provided with a rotating hand wheel 7, further comprising a connecting square seat 8 arranged at the upper end of the gate valve body 1, a rotating circular hole 9 arranged on the connecting square seat 8 and communicating with the gate valve body 1 and used for rotating the valve rod 2 in the connecting square seat 8, a polygonal seat 10 arranged on the side of the valve rod 2 and located in the rotating circular hole 9 and used for rotating with the valve rod 2, a fixed sliding hole 11 arranged on the side end face of the connecting square seat 8 and communicating with the rotating circular hole 9, a prompting device arranged between the connecting square seat 8 and the polygonal seat 10 and used for prompting when the side of the polygonal seat 10 is perpendicular to the fixed sliding hole 11, a limiting rod 12 horizontally and slidably arranged on the connecting square seat 8 and having one end located in the rotating circular hole 9 and the other end located outside the connecting square seat 8 and used for abutting against the polygonal seat 10 when the side of the polygonal seat 10 is perpendicular to the fixed sliding hole 11, and a fixing device arranged between the other end of the limiting rod 12 and the side end face of the connecting square seat 8 and used for fixing the limiting rod 12 to the connecting square seat 8 when the one end of the limiting rod 12 abuts against the polygonal seat 10, the polygonal seat 10 is rotatably arranged in the rotating circular hole 9, the limiting rod 12 is a circular rod, and the limiting rod 12 is located in the fixed sliding hole 11. The polygonal seat 10 is arranged on the valve rod 2 so that the side of the polygonal seat 10 is perpendicular to the fixed sliding hole 11 when the gate valve is in a starting state or a stopping state.

[0027] The prompting device comprises a prompting sliding groove 13 horizontally arranged on the connecting square seat 8 and communicating with the rotating circular hole 9, a corresponding clamping groove 14 arranged on the side end face of the polygonal seat 10 and corresponding to the position of the prompting sliding groove 13 when the side of the polygonal seat 10 is perpendicular to the fixed sliding hole 11, a prompting sliding rod 15 slidably arranged on the connecting square seat 8 and located in the prompting sliding groove 13 and having one end located in the rotating circular hole 9 and the other end located outside the connecting square seat 8, and a driving piece arranged between the other end of the prompting sliding rod 15 and the connecting square seat 8 and used for driving the prompting sliding rod 15 to cooperate with the corresponding clamping groove 14 when the corresponding clamping groove 14 corresponds to the position of the prompting sliding groove 13, the corresponding clamping groove 14 is an arc groove, and one end of the prompting sliding rod 15 is an arc surface. The number of the corresponding clamping grooves 14 corresponds to the shape of the polygonal seat 10, when the polygonal seat 10 is a hexagon, the number of the corresponding clamping grooves 14 is six, and each corresponding clamping groove 14 is located at the center end position of the side.

[0028] The driving member is a connecting plate 16 arranged at the other end of the prompt slide rod 15, and a tension spring 17 fixedly arranged between the connecting plate 16 and the connecting base 8. There are two tension springs 17, and the two tension springs 17 are symmetrically arranged with the prompt slide rod 15 as the central axis.

[0029] The side of the polygonal base 10 is provided with a percussion block 18, and a corresponding clamping groove 14 is formed on the percussion block 18. One end of the prompt slide rod 15 is provided with a percussion block 19 for colliding with the percussion block 18 to produce sound when the driving member drives the prompt slide rod 15 to cooperate with the corresponding clamping groove 14. An arc surface is arranged on the percussion block 19.

[0030] The percussion block 18 is a ceramic block or a metal aluminum block, and the percussion block 19 is a ceramic block or a metal aluminum block.

[0031] The fixing device comprises a clamping rod 20 vertically arranged at the other end of the limiting rod 12, a fixing block 21 arranged at the connecting base 8 and located above the limiting rod 12, and an arc-shaped opening 22 formed on the lower end surface of the fixing block 21. The center position of the arc-shaped opening 22 and the center position of the limiting rod 12 are on the same axis.

[0032] There are two clamping rods 20, and the two clamping rods 20 are symmetrically arranged with the limiting rod 12 as the central axis. There are two fixing blocks 21, and the two fixing blocks 21 are symmetrically arranged with the limiting rod as the central axis.

[0033] The other end surface of the limiting rod 12 is provided with a driving knob 23 for facilitating the hand to twist and rotate the limiting rod 12.

[0034] The polygonal base 10 is a hexagonal base. It can also be an octagonal base or a quadrilateral base, etc.

[0035] The utility model discloses a working principle: when the gate valve is in the starting state or the stop state, the polygon seat 10 rotates to the predetermined position with the valve stem 2, the side of the polygon seat 10 is perpendicular to the fixed sliding hole 11 at this time, the stretching spring 17 drives the one end of the prompt slide rod 15 to cooperate with the corresponding card slot 14 at this time, the impact block 19 and the percussion block 18 hit and produce the impact sound, the impact sound is transmitted outward from the gap of the rotating circular hole 9, and the position of the polygon seat 10 can be conveniently judged by the impact sound for the operator, then the limiting rod 12 is pushed to be close to the polygon seat 10 on the connecting square seat 8, and the one end of the limiting rod 12 is abutted with the side of the polygon seat 10 until the limiting rod 12, then the clamping rod 20 is moved in the circumferential direction on the limiting rod 12 by rotating the limiting rod 12 until the clamping rod 20 enters the fixed block 21 from the arc-shaped opening 22, the transverse movement of the clamping rod 20 is limited by the fixed block 21, the rotating direction of the polygon seat 10 in the rotating circular hole 9 can be limited, and the rotating of the valve stem 2 on the gate valve body 1 is limited, so that an outsider cannot directly hold the hand wheel to drive the valve stem 2 to rotate, the gate valve in the starting state or the stop state cannot be closed or started, and the working safety of the gate valve can be improved.

[0036] The utility model discloses a structure of product, the model of each element is not the content of the utility model protection, also is the known technology, the element of market as long as can realize the function of the above-mentioned utility model can be as a kind of high-efficiency extrusion type automatic sealing gate valve selection application.Therefore the model of element and the like parameters are not described in detail in the utility model.The contribution of the utility model is that each element is combined scientifically.

[0037] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the attached claims and their equivalents.The utility model is not described in detail, and is the known technology of those skilled in the art.

Claims

1. A high-efficiency extrusion-type automatic sealing gate valve, comprising a gate valve body, a valve stem, a connecting bearing, a working box, a side protrusion, and a track groove. The valve stem is installed on the inner side of the gate valve body and is connected to the inner side of the connecting bearing. The outer side of the connecting bearing is connected to the top of the working box. A side protrusion is fixed to the side of the working box and is connected to the track groove, which is formed on the inner wall of the gate valve body. A rotating handwheel is provided at the upper end of the valve stem. The valve valve body is characterized by the following features: The gate valve further comprises a connecting square seat arranged at the upper end of the gate valve body, a rotating circular hole longitudinally arranged on the connecting square seat and communicating with the gate valve body for the rotation of the valve rod in the connecting square seat, a polygonal seat arranged on the side of the valve rod and located in the rotating circular hole for following the rotation of the valve rod, a fixed sliding hole arranged on the side end surface of the connecting square seat and communicating with the rotating circular hole, a prompt device arranged between the connecting square seat and the polygonal seat for prompting when the side of the polygonal seat is perpendicular to the fixed sliding hole, a limiting rod horizontally and slidably arranged on the connecting square seat and having one end located in the rotating circular hole and the other end located outside the connecting square seat for abutting against the polygonal seat when the side of the polygonal seat is perpendicular to the fixed sliding hole, a fixing device arranged between the other end of the limiting rod and the side end surface of the connecting square seat for fixing the limiting rod to the connecting square seat when the one end of the limiting rod abuts against the polygonal seat, and the polygonal seat is rotatably arranged in the rotating circular hole, the limiting rod is a circular rod, and the limiting rod is located in the fixed sliding hole.

2. A high efficiency, push-to-seal gate valve in accordance with claim 1, wherein: The prompt device comprises a prompt sliding groove horizontally arranged on the connecting square seat and communicating with the rotating circular hole, a corresponding clamping groove arranged on the side end surface of the polygonal seat for corresponding to the position of the prompt sliding groove when the side of the polygonal seat is perpendicular to the fixed sliding hole, a prompt sliding rod slidably arranged on the connecting square seat and located in the prompt sliding groove and having one end located in the rotating circular hole and the other end located outside the connecting square seat, and a driving piece arranged between the other end of the prompt sliding rod and the connecting square seat for driving the prompt sliding rod to cooperate with the corresponding clamping groove when the corresponding clamping groove corresponds to the position of the prompt sliding groove, wherein the corresponding clamping groove is an arc groove, and the one end of the prompt sliding rod is an arc surface.

3. A high efficiency, push-to-seal gate valve in accordance with claim 2, wherein: The driving piece is a connecting plate arranged at the other end of the prompt sliding rod and a tension spring fixedly arranged between the connecting plate and the connecting square seat.

4. A high efficiency, push-to-seal gate valve in accordance with claim 2 or 3, wherein: The side of the polygonal seat is provided with a collision block, the corresponding clamping groove is arranged on the collision block, the one end of the prompt sliding rod is provided with a collision block for colliding with the collision block to generate sound when the driving piece drives the prompt sliding rod to cooperate with the corresponding clamping groove, and the arc surface is arranged on the collision block.

5. A high efficiency, push-to-seal gate valve in accordance with claim 4 wherein: The collision block is a ceramic block or a metal aluminum block, and the collision block is a ceramic block or a metal aluminum block.

6. A high efficiency, push-to-seal gate valve in accordance with claim 1, wherein: The fixing device comprises a clamping rod vertically arranged at the other end of the limiting rod, a fixing block arranged on the connecting square seat and located above the limiting rod, and an arc-shaped opening arranged on the lower end surface of the fixing block, wherein the center position of the arc-shaped opening and the center position of the limiting rod are on the same axis.

7. A high efficiency, push-to-seal gate valve in accordance with claim 6 wherein: The clamping rod has two, and the two clamping rods are symmetrically arranged with the limiting rod as the central axis, the fixing block has two, and the two fixing blocks are symmetrically arranged with the limiting rod as the central axis.

8. A high efficiency push to seal gate valve according to claim 6 or 7, characterised in that: The other end surface of the limiting rod is provided with a driving knob for conveniently rotating the limiting rod by hand.

9. A high efficiency, push-to-seal gate valve in accordance with claim 1 wherein: The polygonal seat is a hexagonal seat.

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