Special valve well for collecting biogas in HDPE (High-Density Polyethylene) pipeline

Abstract

The invention relates to the field of valve wells, in particular to a valve well special for HDPE pipeline biogas collection, which comprises a valve well body and a valve well lid body, an inner groove is formed in the edge of the valve well lid body, and the valve well lid body is clamped on the valve well body through the inner groove; a hanging buckle is arranged at the bottom of the valve well lid body, a locking device, a linkage limiting stopper and a linkage device connected with the locking device are arranged on the valve well lid body, and when the locking device on the valve well lid body is buckled on the hanging buckle of the valve well lid body, the linkage limiting stopper is locked on the linkage device. The locking device drives the linkage device to descend and enables the linkage device to be pressed on the linkage limiting stopper on the outer wall of the valve well body, when the locking device on the valve well body is opened, the locking device on the valve well body is separated from the hanging buckle on the valve well cover body, at the moment, the linkage device is synchronously separated from the linkage limiting stopper on the valve well body, and the valve well cover body is locked. And the locking device drives the linkage device to jack up, so that the valve well lid body and the valve well body are separated from each other.

Description

Technical Field

[0001] The invention relates to the field of valve wells, and more specifically to a special valve well for collecting biogas in a HDPE pipeline. Background Art

[0002] The valve well is a valve for underground pipelines and underground pipes (such as tap water, natural gas pipelines, etc.). In order to facilitate the opening and closing of part of the pipeline network or maintenance work, a well body similar to a small room is set up. People install valves and other devices in this well body to facilitate regular inspection, cleaning and unblocking of the valves, and to prevent pipeline blockage.

[0003] The biogas valve well is a well body with a cover installed on the outside of the biogas valve to protect the biogas valve. At present, most of the biogas valve wells sold on the market are imported, and they are heavy, not convenient to transport and open. In order to facilitate transportation and use, people have improved the materials of biogas valve wells. Therefore, most of the biogas valve wells on the market are made of high-density polyethylene materials. The biogas valve wells produced with high-density polyethylene materials are light in weight and easy for staff to carry and open. They have been widely used at present.

[0004] However, as people's application deepened, they found that because the biogas valve well was placed in the outdoor environment for a long time, the high-density polyethylene material was exposed to the sun for a long time and then wetted by rain, the surface of the valve well body and the valve well cover body was prone to adhesion, making the valve well cover body difficult to open.

[0005] Therefore, it is necessary to propose a special valve well for collecting biogas in HDPE pipelines to solve the above problems. Summary of the invention

[0006] In order to overcome at least one defect (shortcoming) of the above-mentioned prior art, the present invention provides a special valve well for collecting biogas in a HDPE pipeline.

[0007] In order to solve the above technical problems, the technical solution of the present invention is as follows: a special valve well for collecting biogas in HDPE pipelines, comprising a valve well body and a valve well cover body;

[0008] An inner groove is provided at the edge of the valve well cover body, and the valve well cover body is clamped on the valve well body through the inner groove;

[0009] The bottom of the valve well cover is provided with a hanging buckle, and the valve well body is provided with a locking device, a linkage limiter and a linkage connected with the locking device. When the locking device on the valve well body is buckled on the hanging buckle of the valve well cover, the locking device drives the linkage to descend and presses it onto the linkage limiter on the outer wall of the valve well body. When the locking device on the valve well body is opened, the locking device on the valve well body is separated from the hanging buckle on the valve well cover. At this time, the linkage is synchronously separated from the linkage limiter on the valve well body, and the locking device drives the linkage to lift up, thereby separating the valve well cover and the valve well body from each other. By arranging an inner groove on the valve well cover, the valve well cover can be well covered on the valve well body through the inner groove, and because of the valve well cover A hook is provided at the bottom of the body, and a locking device and a linkage limiter are provided on the valve well body. Therefore, the locking device on the valve well body can fasten the hook on the valve well cover body to fix the valve well cover body. When the locking device is opened upward, the locking device is separated from the hook and drives the linkage to be pushed upward. At this time, the linkage is separated from the linkage limiter, and the linkage is upwardly abutted against the gap between the valve well cover body and the valve well body, thereby facilitating the separation of the valve well cover body and the valve well body. Due to the upward abutment of the linkage, even if the valve well cover body and the valve well body are partially adhered at the connection point, the linkage can be inserted into the gap between the valve well cover body and the valve well body, thereby effectively realizing the separation of the valve well cover body and the valve well body, and facilitating the opening of the valve well cover body.

[0010] Furthermore, the locking device includes a locking device base, a locking device shaft, a spring, a locking buckle and a locking flip plate;

[0011] The linkage limiter and the locking device base are arranged on the outer wall of the valve well body in sequence from top to bottom, and the locking device rotating shaft is arranged on the locking device base;

[0012] The locking flap is flippably arranged on the locking shaft, the spring is arranged in the locking shaft, one side of the spring abuts against the locking base, and the other side of the spring abuts against the locking flap;

[0013] The locking buckle is arranged on the locking flip plate, and when the locking flip plate is flipped and locked, the locking buckle is arranged on the hanging buckle of the valve well cover body;

[0014] One end of the linkage is connected to the locking buckle, and the other end is engaged with the valve manhole cover body after jacking. By setting the locking device base on the valve well body, and the locking flip piece is rotatably set on the locking device shaft of the locking device base, when the locking flip piece is flipped, the locking buckle can be buckled on the hanging buckle of the valve manhole cover body. At this time, it is only necessary to press the locking flip piece downward, and the locking device base and the hanging buckle are locked with each other. Since one end of the linkage is connected to the locking buckle and the other end is engaged with the valve manhole cover body after jacking, when the locking buckle and the hanging buckle are locked, the linkage is clamped on the linkage limiter to achieve double fixation. When the locking buckle is separated from the hanging buckle, the linkage and the linkage limiter are separated synchronously. At this time, the linkage is upwardly engaged on the valve manhole cover body and lifts up the valve manhole cover body.

[0015] Furthermore, the linkage device includes a linkage piece and a linkage clamping column, and the linkage limiter includes a linkage limit seat, a linkage limit shaft, a first fastening block, a second fastening block, a first return spring and a second return spring;

[0016] The linkage limit seat is arranged on the outer wall of the valve well body, and the linkage limit shaft is arranged on the linkage limit seat;

[0017] The first fastening block and the second fastening block are arranged on the linkage limiting shaft in an openable and closable manner;

[0018] The first fastening block is provided with a first connecting piece, the second fastening block is provided with a second connecting piece, the linkage limit seat is provided with a limit block, one end of the first return spring is connected to the limit block on the linkage limit seat, and the other end is connected to the first connecting piece, and one end of the second return spring is connected to the limit block on the linkage limit seat, and the other end is connected to the second connecting piece;

[0019] One end of the linkage piece is connected to the locking buckle, and the other end is abutted against the junction of the valve well body and the valve well cover body after jacking;

[0020] The linkage locking column is arranged in the middle part of the linkage plate. When the locking device is locked on the hanging buckle, the linkage locking column is clamped on the first locking block and the second locking block. By setting the linkage limit seat on the valve well body, when the locking buckle and the hanging buckle are locked with each other, the linkage locking column connected to the locking buckle is also just clamped between the first locking block and the second locking block. The first return spring and the second return spring can provide a clamping force to the linkage locking column to achieve the compression of the linkage locking column, thereby achieving the effect of double locking and fixing. When the locking buckle is separated from the hanging buckle, the linkage locking column is also separated from the first locking block and the second locking block under the drive of the locking buckle. At this time, the linkage plate is driven by the locking buckle to press upward on the valve well cover body, and the valve well cover body is separated from the valve well body.

[0021] Furthermore, the valve manhole cover body is provided with a top fitting groove matching the thickness of the linkage piece. Through the setting of the top fitting groove, the linkage piece can be easily top-fitted on the valve manhole cover body, so that when the locking device is opened, the locking device has an upward lifting force on the valve manhole cover body. At this time, combined with the lifting force applied by people on the upper side of the valve manhole cover body, it can prevent the valve manhole cover body from generating a large adhesion force between the valve manhole cover body and the valve well body due to long-term exposure to the outdoors, making it easier for people to open it.

[0022] Furthermore, the end of the linkage sheet is provided with a first bifurcated top sheet and a second bifurcated top sheet;

[0023] The first forked top sheet is abutted against the top engagement groove on the valve well cover body;

[0024] The second forked top sheet is engaged with the inner groove on the valve well cover body. By arranging the first forked top sheet and the second forked top sheet at the end of the linkage sheet, when the valve well cover body needs to be opened, the locking device opens and pushes the first forked top sheet and the second forked top sheet to move upward. At this time, the first forked top sheet is engaged with the top engagement groove on the valve well cover body, and the second forked top sheet is engaged with the inner groove on the valve well cover body. The pushing action of the first forked top sheet and the second forked top sheet can avoid adhesion at the junction of the valve well cover body and the valve well body, thereby facilitating the opening of the valve well cover body.

[0025] Furthermore, it also includes a padlock, the locking flap is provided with a strip hole, the locking base is provided with a protrusion with a through hole, when the locking device on the valve well body locks the hook on the valve well cover body, the strip hole of the locking flap is sleeved on the protrusion of the locking base, and the padlock is set in the through hole of the protrusion. Through the setting of the padlock, when the strip hole on the locking flap is sleeved on the protrusion of the locking base, it can be locked by the padlock, so that for some external outdoor valve wells, outsiders cannot open the valve well cover body without authorization.

[0026] Furthermore, the valve well cover body comprises a first valve well cover body and a second valve well cover body respectively covered on the valve well body;

[0027] The first valve well cover body and the second valve well cover body are connected by a flip hinge;

[0028] The volume of the first valve well cover body is between 1 / 4 and 1 / 2 of the volume of the second valve well cover body. Since the first valve well cover body and the second valve well cover body are connected by a flip hinge, when the staff needs to open the valve well cover body and enter the valve well body for inspection or measurement, they can enter the valve well by opening only the first valve well cover body or the second valve well cover body as needed. In this way, since the number of locking devices that need to be pried open is reduced and the valve well cover body does not need to be moved, it is convenient for the staff to enter the valve well for maintenance or inspection and other operations.

[0029] Furthermore, handles are provided on the inner wall of the valve well body, the first valve well cover body and the second valve well cover body. By providing handles on the inner wall of the valve well body, it is convenient for staff to climb in and out during maintenance and overhaul inside the valve well body. The handles provided on the first valve well cover body and the second valve well cover body make it convenient for staff to apply upward force above the valve well cover body as needed to open the first valve well cover body and the second valve well cover body during use.

[0030] Furthermore, the valve well body is respectively provided with a lifting ring lifting screw, a pipe output port and a ventilation inlet, and the pipe output port and the ventilation inlet are symmetrically arranged on the valve well body. The setting of the lifting ring lifting screw facilitates the lifting and transportation of the valve well body, and the setting of the pipe output port facilitates the pipe in the valve well body to extend outward, and the setting of the ventilation inlet can play a role in ventilation. In actual application, people can also observe the condition of the valve in the valve well body through the ventilation inlet, which is simple and convenient.

[0031] Furthermore, the valve well body and the valve well cover body are both made of high-density polyethylene material. In practical applications, the valve well body and the valve well cover body can also be made of other materials, which are easily conceivable by technical personnel in this field.

[0032] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0033] The HDPE pipeline biogas collection special valve well disclosed by the present invention has an inner groove arranged on the valve well cover body, so that the valve well cover body can be well covered on the valve well body through the inner groove, and because a hook is arranged at the bottom of the valve well cover body, and a locking device and a linkage limiter are arranged on the valve well body, the locking device on the valve well body can fasten the hook on the valve well cover body to achieve the fixation of the valve well cover body, and when the locking device is opened upward, the locking device is separated from the hook and drives the linkage to be pushed upward, at this time, the linkage is separated from the linkage limiter, and the linkage is upwardly abutted against the gap between the valve well cover body and the valve well body, so as to facilitate the separation of the valve well cover body and the valve well body, because the linkage is abutted upward, even if the valve well cover body and the valve well body are partially adhered at the connection, the linkage can be inserted into the gap between the valve well cover body and the valve well body, so as to effectively achieve the separation of the valve well cover body and the valve well body, and facilitate the opening of the valve well cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the first angle of the special valve well for collecting biogas in HDPE pipelines in the present invention.

[0035] Figure 2 It is a structural schematic diagram of the second angle of the special valve well for collecting biogas in HDPE pipelines in the present invention.

[0036] Figure 3 It is a structural schematic diagram of the third angle of the special valve well for collecting biogas in HDPE pipelines in the present invention.

[0037] Figure 4 It is a structural schematic diagram of the fourth angle of the special valve well for collecting biogas in HDPE pipelines in the present invention.

[0038] Figure 5 It is a structural schematic diagram of the first cross section of the special valve well for collecting biogas in HDPE pipelines in the present invention.

[0039] Figure 6 It is a structural schematic diagram of the second cross section of the special valve well for collecting biogas in the HDPE pipeline in the present invention.

[0040] Figure 7 It is a structural schematic diagram of the hook, locking device, linkage limiter and linkage in the present invention.

[0041] Figure 8 It is a structural schematic diagram of another angle between the hook, locking device, linkage limiter and linkage in the present invention.

[0042] Fig. 9 It is a structural schematic diagram of the linkage limiter and the linkage during assembly in the present invention.

[0043] Fig.10 It is a structural schematic diagram of the linkage device in the present invention abutting against the valve manhole cover body.

[0044] In the figure, 1 is the valve well body, 2 is the valve well cover body, 3 is the inner groove, 4 is the hook, 5 is the locking device, 6 is the linkage limiter, 7 is the linkage, 8 is the locker base, 9 is the locker shaft, 10 is the spring, 11 is the locking buckle, 12 is the locking flip plate, 13 is the linkage plate, 14 is the linkage engaging column, 15 is the linkage limit seat, 16 is the linkage limit shaft, 17 is the first fastening block, 18 is the second fastening block, 19 is the first reset spring, 20 is a second return spring, 21 is a first connecting plate, 22 is a second connecting plate, 23 is a limit block, 24 is a top groove, 25 is a first forked top plate, 26 is a second forked top plate, 27 is a padlock, 28 is a strip hole, 29 is a through hole, 30 is a protrusion, 31 is a first valve manhole cover body, 32 is a second valve manhole cover body, 33 is a flip hinge, 34 is a handle, 35 is a lifting screw for a lifting ring, 36 is a pipe outlet, and 37 is a ventilation inlet. DETAILED DESCRIPTION

[0045] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be said that the internal connection of two components is connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0047] like Figure 1-6As shown, a special valve well for collecting biogas in HDPE pipelines comprises a valve well body 1 and a valve well cover body 2; an inner groove 3 is provided at the edge of the valve well cover body 2, and the valve well cover body 2 is clamped on the valve well body 1 through the inner groove 3; a hanging buckle 4 is provided at the bottom of the valve well cover body 2, and a locking device 5, a linkage limiter 6 and a linkage 7 connected to the locking device 5 are provided on the valve well body 1. When the locking device 5 on the valve well body 1 is buckled on the hanging buckle 4 of the valve well cover body 2, the locking device 5 drives the linkage 7 to descend and press it on the linkage limiter 6 on the outer wall of the valve well body 1. When the locking device 5 on the valve well body 1 is opened, the locking device 5 on the valve well body 1 is separated from the hanging buckle 4 on the valve well cover body 2. At this time, the linkage 7 is synchronously separated from the linkage limiter 6 on the valve well body 1, and the locking device 5 drives the linkage 7 to lift up, so that the valve well cover body 2 and the valve well body 1 are separated from each other. By arranging the inner groove 3 on the valve well cover body 2, the valve well The cover body 2 can be well covered on the valve well body 1 through the inner groove 3. Since a hook 4 is provided at the bottom of the valve well cover body 2, and a locking device 5 and a linkage limiter 6 are provided on the valve well body 1, the locking device 5 on the valve well body 1 can fasten the hook 4 on the valve well cover body 2 to fix the valve well cover body 2. When the locking device 5 is opened upward, the locking device 5 is separated from the hook 4 and drives the linkage 7 to push upward. At this time, the linkage 7 is separated from the linkage limiter 6, and the linkage 7 is upwardly pressed against the gap between the valve well cover body 2 and the valve well body 1, thereby facilitating the separation of the valve well cover body 2 and the valve well body 1. Due to the upward pressure of the linkage 7, even if the valve well cover body 2 and the valve well body 1 are partially adhered at the connection, the linkage 7 can be inserted into the gap between the valve well cover body 2 and the valve well body 1, thereby effectively realizing the separation of the valve well cover body 2 and the valve well body 1, and facilitating the opening of the valve well cover body 2.

[0048] like Figure 7-10As shown, the locking device 5 includes a locking base 8, a locking shaft 9, a spring 10, a locking buckle 11 and a locking flip piece 12; the linkage limiter 6 and the locking base 8 are arranged on the outer wall of the valve well body 1 in sequence from top to bottom, and the locking shaft 9 is arranged on the locking base 8; the locking flip piece 12 is flippably arranged on the locking shaft 9, and the spring 10 is arranged in the locking shaft 9, one side of the spring 10 is against the locking base 8, and the other side is against the locking flip piece 12; the locking buckle 11 is arranged on the locking flip piece 12, and when the locking flip piece 12 is flipped and locked, the locking buckle 11 is buckled on the hanging buckle 4 of the valve well cover body 2; one end of the linkage 7 is connected to the locking buckle 11, and the other end is against the valve well cover body 2 after jacking, and the locking buckle 11 is fastened to the locking buckle 4 of the valve well cover body 2. The base 8 is set on the valve well body 1, and the locking flap 12 is rotatably set on the locking shaft 9 of the locking base 8. When the locking flap 12 is flipped, the locking buckle 11 can be buckled on the hanging buckle 4 of the valve well cover body 2. At this time, you only need to press the locking flap 12 downward, and then the locking base 8 is locked with the hanging buckle 4. Since one end of the linkage 7 is connected to the locking buckle 11, and the other end is abutted against the valve well cover body 2 after jacking, when the locking buckle 11 is locked with the hanging buckle 4, the linkage 7 is stuck on the linkage limiter 6 to achieve double fixation. When the locking buckle 11 is separated from the hanging buckle 4, the linkage 7 is separated from the linkage limiter 6 synchronously. At this time, the linkage 7 is upwardly abutted on the valve well cover body 2 and lifts up the valve well cover body 2.

[0049] In the present invention, the linkage 7 includes a linkage piece 13 and a linkage clamping column 14, and the linkage limiter 6 includes a linkage limit seat 15, a linkage limit shaft 16, a first fastening block 17, a second fastening block 18, a first reset spring 19 and a second reset spring 20; the linkage limit seat 15 is arranged on the outer wall of the valve well body 1, and the linkage limit shaft 16 is arranged on the linkage limit seat 15; the first fastening block 17 and the second fastening block 18 are openably arranged on the linkage limit shaft 16; the first fastening block 1 7 is provided with a first connecting piece 21, the second fastening block 18 is provided with a second connecting piece 22, the linkage limit seat 15 is provided with a limit block 23, one end of the first return spring 19 is connected to the limit block 23 on the linkage limit seat 15, and the other end is connected to the first connecting piece 21, one end of the second return spring 20 is connected to the limit block 23 on the linkage limit seat 15, and the other end is connected to the second connecting piece 22; one end of the linkage piece 13 is connected to the locking buckle 11, and the other end is abutted on the valve after jacking. The junction of the door well body 1 and the valve well cover body 2; the linkage engaging column 14 is arranged in the middle of the linkage piece 13, and when the locking device 5 is locked on the hook 4, the linkage engaging column 14 is clamped on the first fastening block 17 and the second fastening block 18, and the linkage limit seat 15 is arranged on the valve well body 1, so when the locking buckle 11 and the hook 4 are locked with each other, the linkage engaging column 14 connected to the locking buckle 11 is also just clamped between the first fastening block 17 and the second fastening block 18, and the first complex The positioning spring 19 and the second return spring 20 can provide a clamping force to the linkage locking column 14 to achieve the clamping of the linkage locking column 14, thereby realizing the double locking and fixing effect. When the locking buckle 11 is separated from the hanging buckle 4, the linkage locking column 14 is also separated from the first locking block 17 and the second locking block 18 under the drive of the locking buckle 11. At this time, the linkage piece 13 is driven by the locking buckle 11 to press upward on the valve well cover body 2, and the valve well cover body 2 is separated from the valve well body 1.

[0050] In the present invention, a top fitting groove 24 matching the thickness of the linkage piece 13 is provided on the valve well cover body 2. Through the setting of the top fitting groove 24, the linkage piece 13 can be easily top-fitted on the valve well cover body 2, so that when the locking device 5 is opened, the locking device 5 has an upward lifting force on the valve well cover body 2. At this time, combined with the lifting force applied by people on the upper side of the valve well cover body 2, the valve well cover body 2 can be prevented from being exposed to the sun for a long time outdoors, resulting in a large adhesion between the valve well cover body 2 and the valve well body 1, which is convenient for people to open. Among them, a first forked top sheet 25 and a second forked top sheet 26 are provided at the end of the linkage piece 13; the first forked top sheet 25 and the top fitting groove 2 on the valve well cover body 2 4 abuts against each other; the second forked top sheet 26 abuts against the inner groove 3 on the valve well cover body 2, and the first forked top sheet 25 and the second forked top sheet 26 are arranged at the end of the linkage sheet 13. Therefore, when the valve well cover body 2 needs to be opened, the locking device 5 opens and pushes the first forked top sheet 25 and the second forked top sheet 26 to move upward. At this time, the first forked top sheet 25 abuts against the top engagement groove 24 on the valve well cover body 2, and the second forked top sheet 26 abuts against the inner groove 3 on the valve well cover body 2. The first forked top sheet 25 and the second forked top sheet 26 act as a push, thereby avoiding adhesion at the junction of the valve well cover body 2 and the valve well body 1, and facilitating the opening of the valve well cover body 2.

[0051] In addition, it also includes a padlock 27, a strip hole 28 is provided on the locking flap 12, and a protrusion 30 with a through hole 29 is provided on the locking base 8. When the locking device 5 on the valve well body 1 locks the hook 4 on the valve well cover body 2, the strip hole 28 of the locking flap 12 is sleeved on the protrusion 30 of the locking base 8, and the padlock 27 is set in the through hole 29 of the protrusion 30. Through the setting of the padlock 27, when the strip hole 28 on the locking flap 12 is sleeved on the protrusion 30 of the locking base 8, it can be locked by the padlock 27, so that for some external outdoor valve wells, outsiders cannot open the valve well cover body 2 without authorization.

[0052] In the present invention, the valve well cover body 2 includes a first valve well cover body 31 and a second valve well cover body 32 respectively covered on the valve well body 1; the first valve well cover body 31 and the second valve well cover body 32 are connected by a flip hinge 33; the volume of the first valve well cover body 31 is between 1 / 4 and 1 / 2 of the volume of the second valve well cover body 32. Since the first valve well cover body 31 and the second valve well cover body 32 are connected by a flip hinge 33, when the staff needs to open the valve well cover body 2 and enter the valve well body 1 for inspection or measurement, they can enter the valve well by opening only the first valve well cover body 31 or the second valve well cover body 32 as needed. The number of locking devices 5 that need to be pried apart is reduced, and the valve well cover body 2 no longer needs to be moved, thereby facilitating the staff to enter the valve well for maintenance or overhaul operations, wherein handles 34 are provided on the inner wall of the valve well body 1, the first valve well cover body 31, and the second valve well cover body 32. By providing the handles 34 on the inner wall of the valve well body 1, it is convenient for the staff to climb in and out of the valve well body 1 during maintenance and overhaul, and the handles 34 provided on the first valve well cover body 31 and the second valve well cover body 32 facilitate the staff to apply an upward force on the top of the valve well cover body 2 as needed to open the first valve well cover body 31 and the second valve well cover body 32 during use.

[0053] In addition, a lifting ring lifting screw 35, a pipe output port 36 and a ventilation inlet 37 are respectively provided on the valve well body 1. The pipe output port 36 and the ventilation inlet 37 are symmetrically arranged on the valve well body 1. The setting of the lifting ring lifting screw 35 facilitates the lifting and transportation of the valve well body 1, and the setting of the pipe output port 36 facilitates the extension of the pipe in the valve well body 1 outward, and the setting of the ventilation inlet 37 can play a ventilation role. In actual applications, people can also observe the status of the valve in the valve well body 1 through the ventilation inlet 37, which is simple and convenient. In the present invention, the valve well body 1 and the valve well cover body 2 are both made of high-density polyethylene material. In actual applications, the valve well body 1 and the valve well cover body 2 can also be made of other materials, which are easily conceivable by technical personnel in this field.

[0054] Example

[0055] In this embodiment, since an inner groove is provided at the edge of the valve well cover body, and the valve well cover body is composed of a first valve well cover body, a second valve well cover body and a flip hinge, through such an arrangement, when the staff needs to open the valve well cover body and enter the valve well body for inspection or measurement, they can enter the valve well after only opening the first valve well cover body or the second valve well cover body as needed. In this way, since the number of locking devices 5 that need to be pried open is reduced and the valve well cover body does not need to be moved, it is convenient for the staff to enter the valve well for maintenance or inspection and other operations.

[0056] In order to lock the valve well cover body, a hook is provided at the bottom of the valve well cover body, and a locking device, a linkage limiter and a linkage connected to the locking device are provided on the valve well body. When the locking device on the valve well body is buckled on the hook of the valve well cover body, the locking device drives the linkage to descend and presses it onto the linkage limiter on the outer wall of the valve well body. When the locking device on the valve well body is opened, the locking device on the valve well body is separated from the hook on the valve well cover body. At this time, the linkage and the linkage limiter on the valve well body are separated synchronously, and the locking device drives the linkage to lift up, thereby separating the valve well cover body and the valve well body from each other. By providing a hook at the bottom of the valve well cover body and a locking device on the valve well body and linkage limiter, so the locking device on the valve well body can fasten the hook on the valve well cover body to fix the valve well cover body, and when the locking device is opened upward, the locking device separates from the hook and drives the linkage upward. At this time, the linkage is separated from the linkage limiter, and the linkage is upwardly pressed against the gap between the valve well cover body and the valve well body, thereby facilitating the separation of the valve well cover body and the valve well body. Due to the upward pressure of the linkage, even if the valve well cover body and the valve well body are partially adhered at the connection point, the linkage can be inserted into the gap between the valve well cover body and the valve well body, thereby effectively realizing the separation of the valve well cover body and the valve well body, and facilitating the opening of the valve well cover body.

[0057] In the figure, the description of the positional relationship is only for illustrative purposes and should not be understood as a limitation on this patent; obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A special valve well for collecting biogas in HDPE pipelines, comprising a valve well body and a valve well cover, characterized in that: An inner groove is provided at the edge of the valve well cover body, and the valve well cover body is clamped on the valve well body through the inner groove; A hook is provided at the bottom of the valve well cover body, and a locking device, a linkage limiter and a linkage connected to the locking device are provided on the valve well body. When the locking device on the valve well body is buckled on the hook of the valve well cover body, the locking device drives the linkage to descend and presses it onto the linkage limiter on the outer wall of the valve well body. When the locking device on the valve well body is opened, the locking device on the valve well body is separated from the hook on the valve well cover body. At this time, the linkage is synchronously separated from the linkage limiter on the valve well body, and the locking device drives the linkage to lift up, thereby separating the valve well cover body and the valve well body from each other.

2. The special valve well for collecting biogas in HDPE pipeline according to claim 1 is characterized by: The locking device comprises a locking device base, a locking device shaft, a spring, a locking buckle and a locking flip plate; The linkage limiter and the locking device base are arranged on the outer wall of the valve well body in sequence from top to bottom, and the locking device rotating shaft is arranged on the locking device base; The locking flap is flippably arranged on the locking shaft, the spring is arranged in the locking shaft, one side of the spring abuts against the locking base, and the other side of the spring abuts against the locking flap; The locking buckle is arranged on the locking flip plate, and when the locking flip plate is flipped and locked, the locking buckle is arranged on the hanging buckle of the valve well cover body; One end of the linkage is connected to the locking buckle, and the other end is abutted against the valve well cover body after being lifted.

3. The special valve well for collecting biogas in HDPE pipeline according to claim 2 is characterized by: The linkage device comprises a linkage piece and a linkage clamping column, and the linkage limiter comprises a linkage limit seat, a linkage limit shaft, a first fastening block, a second fastening block, a first return spring and a second return spring; The linkage limit seat is arranged on the outer wall of the valve well body, and the linkage limit shaft is arranged on the linkage limit seat; The first fastening block and the second fastening block are arranged on the linkage limiting shaft in an openable and closable manner; The first fastening block is provided with a first connecting piece, the second fastening block is provided with a second connecting piece, the linkage limit seat is provided with a limit block, one end of the first return spring is connected to the limit block on the linkage limit seat, and the other end is connected to the first connecting piece, and one end of the second return spring is connected to the limit block on the linkage limit seat, and the other end is connected to the second connecting piece; One end of the linkage piece is connected to the locking buckle, and the other end is abutted against the junction of the valve well body and the valve well cover body after jacking; The linkage clamping column is arranged at the middle part of the linkage piece. When the locking device is locked on the hook, the linkage clamping column is clamped on the first fastening block and the second fastening block.

4. The special valve well for collecting biogas in HDPE pipeline according to claim 3 is characterized by: The valve well cover body is provided with a top engaging groove matching the thickness of the linkage piece.

5. The special valve well for collecting biogas in HDPE pipeline according to claim 4 is characterized in that: The end of the linkage sheet is provided with a first bifurcated top sheet and a second bifurcated top sheet; The first forked top sheet is abutted against the top engagement groove on the valve well cover body; The second forked top plate is in contact with the inner groove on the valve well cover body.

6. The special valve well for collecting biogas in HDPE pipeline according to claim 2 is characterized by: It also includes a padlock, the locking flap is provided with a strip hole, the locker base is provided with a protrusion with a through hole, when the locking device on the valve well body locks the hook on the valve well cover body, the strip hole of the locking flap is sleeved on the protrusion of the locker base, and the padlock is set in the through hole of the protrusion.

7. The special valve well for collecting biogas in HDPE pipeline according to claim 1 is characterized by: The valve well cover body comprises a first valve well cover body and a second valve well cover body respectively covered on the valve well body; The first valve well cover body and the second valve well cover body are connected by a flip hinge; The volume of the first valve well cover body is between 1 / 4 and 1 / 2 of the volume of the second valve well cover body.

8. The special valve well for collecting biogas in HDPE pipeline according to claim 7 is characterized by: The inner wall of the valve well body, the first valve well cover body and the second valve well cover body are all provided with handles.

9. The special valve well for collecting biogas in HDPE pipeline according to claim 1, characterized in that: The valve well body is respectively provided with a lifting screw of a lifting ring, a pipeline output port and a ventilation inlet, and the pipeline output port and the ventilation inlet are symmetrically arranged on the valve well body.

10. The special valve well for collecting biogas in HDPE pipeline according to claim 1, characterized in that: The valve well body and the valve well cover body are both made of high-density polyethylene material.

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