Fire-fighting gate valve machining device and method

Abstract

The invention relates to the technical field of gate valve machining, in particular to a fire-fighting gate valve machining device and method.The fire-fighting gate valve machining device comprises a bottom plate base, an L-shaped plate is fixedly installed in the middle of the upper portion of the bottom plate base, and two turning main machines arranged in a bilateral symmetry mode are connected to the bottom plate base through angle adjusting mechanisms; the machining device further comprises a valve clamping mechanism used for locking the position of the gate valve, the position of the gate valve is fixed through the valve clamping mechanism, the elevation angles of the two turning main machines can be synchronously driven to be adjusted by adjusting the height of the lifting plate up and down, and meanwhile the valve clamping mechanism is driven to adjust the position of the gate valve; according to the gate valve inner cavity wedge-shaped sealing face machining device, the rotating shafts of the turning main machines can always correspond to the coaxial line position of the gate valve inner cavity wedge-shaped sealing face, the adjusting step is simplified, the machining effect is improved, the elevation angles of the turning main machines on the two sides can be consistent, and therefore the machining precision is guaranteed, and the track plate frame and the sliding plate can be automatically locked through the locking assembly.

Description

Technical Field

[0001] The invention relates to the technical field of gate valve processing, and in particular to a fire gate valve processing device and method. Background Art

[0002] The fire gate valve is a valve used to control the flow of fluid in the fire protection system. It is mainly composed of a valve body, a valve cover, a gate, a valve stem and a handwheel. The valve body is the main part of the gate valve, and there is a channel inside for the fluid to pass through. The gate valve is divided into a wedge-type gate valve and a parallel gate valve according to the sealing surface configuration.

[0003] Among them, the gate of the wedge-type gate valve is wedge-shaped, such as Figure 8 and Fig. 9 As shown, this makes the sealing surface of the inner cavity of the valve body form a certain angle with the vertical center line. Common angles are 2°52′, 3°30′, 5°, 8°, 10°, etc. At present, two lathe spindles arranged symmetrically on the left and right are mainly used to drive the turning tool to synchronously extend into the interior of the gate valve, so as to turn the inner cavity sealing surface of the gate valve. Since the sealing surfaces on both sides of the inner cavity of the wedge-type gate valve have a structure with a large upper spacing and a small lower spacing, the existing lathe spindle needs to be tilted to a position coaxial with the inner cavity sealing surface during turning.

[0004] However, the existing lathe spindle angle adjustment is rather complicated and difficult, so that when turning the inner cavity surface of the gate valve with different inclination angles is required, the angle adjustment time is relatively long, which reduces the processing efficiency. In addition, it is difficult to adjust the spindle angles of the lathes on both sides to be consistent, resulting in inconsistent inclination angles of the two sealing surfaces of the inner cavity of the gate valve, thereby affecting the processing accuracy. Summary of the invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fire gate valve processing device, including a base plate seat, an L-shaped plate is fixedly installed at the center position of the upper part of the base plate seat, and two left-right symmetrically arranged turning main machines are connected to the base plate seat through an angle adjustment mechanism. The processing device also includes a valve clamping mechanism for locking the position of the gate valve.

[0006] The angle adjustment mechanism includes two sliding plates symmetrically arranged on the upper part of the base plate seat for sliding left and right. The sliding plates are L-shaped structures. The upper ends of the vertical sections of the sliding plates are hinged with track plate frames. A U-shaped seat is slidably arranged inside the track plate frame along its length direction. The U-shaped seat is fixedly connected to the turning main machine by bolts.

[0007] The angle adjustment mechanism also includes a lifting plate that is set at the center position of the upper part of the base plate seat and slides up and down through a guide column. Two left-right symmetrically arranged support frames are set on the upper part of the lifting plate and slide left and right. The upper part of the support frame is hinged to one end of the track plate frame at the corresponding position close to the middle of the base plate seat.

[0008] The track plate frame and the sliding plate at the corresponding positions are jointly provided with a locking component for locking the angle of the track plate frame when turning the gate valve, and the angle adjustment mechanism also includes a supporting component for supporting the stability of the track plate frame.

[0009] The lifting plate that moves up and down drives the track plate frames on both sides to synchronously adjust the elevation angle through the support frame, and the lifting plate drives the gate valve to synchronously adjust the position up and down through the clamping valve mechanism. The track plate frame drives the rotating axis of the turning host to always correspond to the coaxial line position of the wedge-shaped sealing surface of the gate valve inner cavity.

[0010] Preferably, the clamping valve mechanism includes a T-shaped plate fixedly installed on the upper side of the middle part of the lifting plate, a fixed plate is fixedly installed on the upper rear side of the horizontal section of the T-shaped plate, two clamping parts symmetrically arranged up and down are provided on the front side of the fixed plate for sliding up and down, a No. 1 hydraulic rod is fixedly installed on the lower side of the horizontal section of the L-shaped plate, and a pressing part is fixedly installed on the lower part of the telescopic section of the No. 1 hydraulic rod.

[0011] Preferably, the clamping member is in a U-shaped structure, and two longitudinal sections of the clamping member are provided with abutment grooves for abutting the gate valve on one side close to the middle of the fixed plate. The lower part of the pressing member is in an eight-shaped structure, and the hinge point between the support frame and the track plate frame is on the horizontal plane where the middle of the fixed plate is located.

[0012] Preferably, a synchronous plate is rotatably provided in the middle of the rear side of the fixed plate, and hinged plates are hinged at both ends of the synchronous plate. The end of the hinged plate away from the synchronous plate is hinged to the clamping piece at the corresponding position, and a No. 2 hydraulic rod is fixedly installed inside the T-shaped plate, and the telescopic section of the No. 2 hydraulic rod is fixedly connected to the lower clamping piece through a support plate.

[0013] Preferably, the lower rotation of the lifting plate is provided with a vertically arranged No. 1 screw, which is threadedly connected to the base plate seat, and the internal rotation of the lifting plate is provided with a transversely arranged bidirectional screw, and the two threaded sections of the bidirectional screw are respectively threadedly connected to the support frame at the corresponding position.

[0014] Preferably, a connecting plate is hinged at the bottom of the U-shaped seat, an electric slider is provided on the upper side of the horizontal section of the sliding plate for left and right sliding, and the electric slider is slidably connected to the connecting plate on one side close to the middle of the bottom plate seat.

[0015] Preferably, the locking assembly includes a follower rotatably arranged on the left side of the front part of the track plate frame, the follower has a structure with an axis at the rear and a plate at the front, a support plate is hingedly connected to the front lower part of the vertical section of the sliding plate, and the front part of the follower is slidably connected to the support plate along the length direction of the support plate. The locking assembly also includes a locking angle portion for locking the angle between the follower and the track plate frame.

[0016] Preferably, the locking corner portion includes positioning holes, which are arranged on the outer surface of the axial structure of the follower at equal intervals along the circumference of the axial structure, and a column member for inserting into the positioning hole is slidably provided inside the track plate frame along its length direction, and a coil spring is provided between the column member and the track plate frame.

[0017] Preferably, the supporting assembly includes driven triangular blocks fixedly installed at equal intervals along the left-right direction on the rear side of the horizontal section of the sliding plate, the driven triangular blocks on the two sliding plates are symmetrically arranged, the inclined surfaces of the driven triangular blocks are facing away from the middle of the base plate seat, an active plate is provided on the rear side of the upper part of the base plate seat for sliding back and forth, two groups of pushing triangular blocks symmetrically arranged on the front side of the active plate are fixedly installed, each group is composed of pushing triangular blocks arranged at equal intervals along the left-right direction, the inclined surfaces of the pushing triangular blocks are facing close to the middle of the base plate seat, a No. 2 threaded rod is rotatably provided on the rear side of the vertical section of the L-shaped plate, and the No. 2 threaded rod is threadedly connected to the active plate.

[0018] Preferably, the present invention also provides a fire gate valve processing method, and the specific processing method steps are as follows: S1. First, adjust the height of the lifting plate and the distance between the two support frames up and down, so as to synchronously adjust the elevation angle, position of the track plate frame and the height of the clamping valve mechanism.

[0019] S2. Lock the elevation angle of the track plate frame and the height of the gate valve through the support assembly.

[0020] S3. Place and clamp the gate valve inside the valve clamping mechanism so that the rotating axis of the turning main machine always corresponds to the coaxial line position of the wedge-shaped sealing surface of the gate valve inner cavity.

[0021] S4. Move the rotating shaft of the turning machine to the inside of the gate valve, so that the turning machine can turn the wedge-shaped sealing surface of the inner cavity of the gate valve.

[0022] S5. When the turning main machine moves toward the gate valve, the locking assembly further automatically locks the angle between the track plate frame and the sliding plate.

[0023] The beneficial effects of the present invention are as follows: 1. The present invention adopts a clamping valve mechanism to fix the position of the gate valve. By adjusting the height of the lifting plate up and down, the elevation angles of the two turning main machines can be synchronously adjusted, and the clamping valve mechanism can be driven to adjust the position of the gate valve at the same time, so that the rotating axis of the turning main machine can always correspond to the coaxial line position of the wedge-shaped sealing surface of the gate valve inner cavity, which simplifies the adjustment steps, improves the processing effect, and can make the elevation angles of the turning main machines on both sides consistent, thereby ensuring the processing accuracy.

[0024] 2. The present invention adopts a locking assembly to further automatically lock and connect the track plate frame and the sliding plate when the turning host moves or the gate valve is turned, and the track plate frame, the sliding plate and the locking assembly form a triangular structure, so that the locking assembly can also support the track plate frame after locking the track plate frame and the sliding plate, thereby increasing the stability of the track plate frame and the turning host, further ensuring the processing accuracy, and when the turning host moves to the initial position, the locking assembly can automatically unlock the track plate frame and the sliding plate, thereby facilitating the adjustment of the angle of the track plate frame, further simplifying the adjustment steps and improving the processing efficiency.

[0025] 3. The present invention adopts a support assembly that can push the sliding plate toward the middle of the base plate seat, so that the sliding plate drives the track plate frame to press against the support frame, so that the track plate frame applies an upward force to the lifting plate by pushing the support frame, thereby avoiding the gravity of the turning host and the valve body from acting on the upper No. 1 screw rod through the lifting plate, preventing the No. 1 screw rod from being bent due to long-term force, thereby ensuring that the height position of the lifting plate remains unchanged, and further increasing the stability of the track plate frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention when turning the inner cavity sealing surface of the gate valve body.

[0028] Figure 2 It is a cross-sectional view of the bottom plate seat, the angle adjustment mechanism and the turning main machine in the present invention.

[0029] Figure 3 It is a structural schematic diagram of the bottom plate seat, L-shaped plate, sliding plate, track plate frame and supporting components in the present invention.

[0030] Figure 4 It is a structural schematic diagram of the T-shaped plate, the fixing plate, the clamping member, the lifting plate, the abutting groove and the second hydraulic rod in the present invention.

[0031] Figure 5 It is a structural schematic diagram of the fixed plate, the clamping member, the synchronous plate and the hinged plate in the present invention.

[0032] Figure 6 It is a structural schematic diagram of the sliding plate, the track plate frame, the U-shaped seat, the follower and the support plate in the present invention.

[0033] Figure 7 It is a cross-sectional view of the track plate frame, the U-shaped seat, the follower and the locking corner portion in the present invention.

[0034] Figure 8It is a cross-sectional view of the bottom plate seat, the turning main machine, the sliding plate, the track plate frame, the connecting plate and the electric slide block in the present invention.

[0035] Fig. 9 It is a structural diagram of the gate valve body.

[0036] Fig.10 It is a process flow chart of the present invention.

[0037] In the figure: 1, base plate; 2, L-shaped plate; 3, angle adjustment mechanism; 4, turning main machine; 5, clamping valve mechanism; 31, sliding plate; 32, track plate frame; 33, U-shaped seat; 34, lifting plate; 35, support frame; 36, locking assembly; 37, support assembly; 38, connecting plate; 39, electric slide; 51, T-shaped plate; 52, fixing plate; 53, clamping piece; 54, No. 1 hydraulic rod; 55 , pressing piece; 56, synchronous plate; 341, screw rod No. 1; 342, bidirectional screw rod; 361, follower; 362, support plate; 363, corner lock; 371, driven triangle block; 372, active plate; 373, push triangle block; 374, threaded rod No. 2; 531, abutment groove; 561, hinge plate; 562, hydraulic rod No. 2; 3631, positioning hole; 3632, column insert. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0039] See also Figure 1 and Fig. 9 A fire gate valve processing device includes a base plate seat 1, an L-shaped plate 2 is fixedly installed at the center of the upper part of the base plate seat 1, and two left-right symmetrically arranged turning main machines 4 are connected to the base plate seat 1 through an angle adjustment mechanism 3. The processing device also includes a valve clamping mechanism 5 for locking the position of the gate valve.

[0040] When it is necessary to turn the sealing surface of the valve body inner cavity of the fire gate valve, first adjust the angle adjustment mechanism 3 according to the angle between the valve body inner cavity sealing surface and the vertical center line and the distance between the two sealing surfaces of the valve body inner cavity, so that the angle adjustment mechanism 3 drives the turning host 4 to adjust the elevation angle to be consistent with the angle between the valve body inner cavity sealing surface and the vertical center line, and can make the rotating axis of the turning host 4 always correspond to the coaxial position of the wedge-shaped sealing surface of the gate valve inner cavity, simple adjustment steps, and then place the valve body to be processed on the clamping valve mechanism 5 and lock it, and then move the turning host 4 at the same time to turn the two sealing surfaces of the valve body inner cavity.

[0041] See also Figure 1 , Figure 2 and Figure 8 The angle adjustment mechanism 3 includes two sliding plates 31 symmetrically arranged on the upper part of the base plate seat 1 for sliding left and right. The sliding plate 31 is an L-shaped structure. A track plate frame 32 is hinged on the upper end of the vertical section of the sliding plate 31. A U-shaped seat 33 is slidably arranged inside the track plate frame 32 along its length direction. The U-shaped seat 33 is fixedly connected to the turning main machine 4 by bolts. The main axis of the turning main machine 4 is located inside the plane where the middle part of the track plate frame 32 is located.

[0042] See also Figure 1 , Figure 2 , Figure 3 and Figure 6 The angle adjustment mechanism 3 also includes a lifting plate 34 set at the center position of the upper part of the base plate seat 1 for sliding up and down through a guide column. Two left-right symmetrically arranged support frames 35 are set on the upper part of the lifting plate 34 for sliding left and right. The upper part of the support frame 35 is hinged to one end of the track plate frame 32 at the corresponding position close to the middle part of the base plate seat 1.

[0043] See also Figure 1 and Figure 2 The lower part of the lifting plate 34 is rotatably provided with a vertically arranged No. 1 screw 341, which is threadedly connected to the base plate seat 1. The inner part of the lifting plate 34 is rotatably provided with a transversely arranged bidirectional screw 342, and the two threaded sections of the bidirectional screw 342 are respectively threadedly connected to the support frame 35 at the corresponding position.

[0044] When it is necessary to turn the valve body inner cavity sealing surface of the fire gate valve, the operator manually turns the No. 1 screw 341 according to the angle between the valve body inner cavity sealing surface and the vertical center line. The No. 1 screw 341 drives the lifting plate 34 to adjust the height position up and down. The lifting plate 34 drives the track plate frames 32 on both sides 35 through the support frame 35 to synchronously change the height of one end near the middle of the base plate seat 1.

[0045] Since one end of the track plate frame 32 away from the middle of the base plate seat 1 is hinged to the upper side of the vertical section of the sliding plate 31, and the sliding plate 31 slides left and right on the base plate seat 1, the height of the end of the track plate frame 32 away from the middle of the base plate seat 1 remains unchanged, thereby making the elevation angle of the track plate frame 32 change synchronously, and the track plate frame 32 drives the turning main machine 4 to synchronously adjust the elevation angle through the U-shaped seat 33 thereon.

[0046] It should be noted that an arc-shaped scale plate is fixedly installed on the upper rear side of the vertical section of the left sliding plate 31, and a pointer is fixedly installed on the left rear end of the left track plate frame 32. The length direction of the pointer is perpendicular to the length direction of the left track plate frame 32. The pointer rotates around the left track plate frame 32 and the hinge axis of the left track plate frame 32. By observing the pointer pointing to the scale on the arc-shaped scale plate, the current elevation angle of the track plate frame 32 and the turning host 4 can be intuitively observed, which is convenient for adjustment.

[0047] Subsequently, the operator manually rotates the bidirectional screw 342 according to the distance between the two sealing surfaces in the inner cavity of the valve body, so that the bidirectional screw 342 drives the two support frames 35 to move synchronously in opposite directions, thereby adjusting the distance between the two support frames 35. The support frame 35 drives the corresponding sliding plate 31 to slide synchronously by pushing the track plate frame 32 at the corresponding position, and the track plate frame 32 drives the turning main machine 4 to adjust the position synchronously, so that the main axes of the turning main machines 4 on both sides can be respectively located on the colinear position of the two sealing surface axes of the inner cavity of the valve body.

[0048] See also Figure 1 and Figure 3 The angle adjustment mechanism 3 also includes a support assembly 37 for supporting the stability of the track plate frame 32. The support assembly 37 includes a driven triangular block 371 fixedly installed at equal intervals along the left and right directions on the rear side of the horizontal section of the sliding plate 31. The driven triangular blocks 371 on the two sliding plates 31 are symmetrically arranged, and the inclined surfaces of the driven triangular blocks 371 face the direction away from the middle of the base plate seat 1. An active plate 372 is provided on the rear side of the upper part of the base plate seat 1 for sliding back and forth. Two groups of symmetrically arranged pushing triangular blocks 373 are fixedly installed on the front side of the active plate 372, each group of which is composed of pushing triangular blocks 373 arranged at equal intervals along the left and right directions, and the inclined surfaces of the pushing triangular blocks 373 face the direction close to the middle of the base plate seat 1. A second threaded rod 374 is rotatably provided on the rear side of the vertical section of the L-shaped plate 2, and the second threaded rod 374 is threadedly connected to the active plate 372.

[0049] In the initial state, the active plate 372 drives the pushing triangle block 373 thereon to be located on the rear side and does not contact the driven triangle block 371. When the position and elevation angle of the track plate frame 32 are adjusted, the operator manually turns the No. 2 threaded rod 374 to drive the active plate 372 to move forward, and the active plate 372 drives the pushing triangle block 373 thereon to move forward synchronously, so that the inclined surface of the pushing triangle block 373 moves to abut against the inclined surface of the driven triangle block 371 at the corresponding position on its front side, so that the pushing triangle block 373 applies a force to the sliding plate 31 to move toward the middle direction of the base plate seat 1 by pushing the driven triangle block 371.

[0050] The sliding plate 31 applies an upward force to the support frame 35 through the track plate frame 32, thereby preventing the gravity of the turning main machine 4 and the valve body from acting entirely on the axial direction of the No. 1 screw 341 through the lifting plate 34, preventing the No. 1 screw 341 from bending due to long-term force, ensuring that the height position of the lifting plate 34 remains unchanged, and driving the lifting plate 34 to pull the No. 1 screw 341 through the support frame 35, preventing the threaded connection between the No. 1 screw 341 and the base plate seat 1 from shaking, further increasing the stability of the track plate frame 32.

[0051] See also Figure 1 and Figure 4 The clamping valve mechanism 5 includes a T-shaped plate 51 fixedly installed on the upper side of the middle part of the lifting plate 34, a fixed plate 52 is fixedly installed on the upper rear side of the horizontal section of the T-shaped plate 51, and two clamping members 53 symmetrically arranged up and down are provided on the front side of the fixed plate 52 for sliding up and down. A hydraulic rod 54 is fixedly installed on the lower side of the horizontal section of the L-shaped plate 2, and a pressing member 55 is fixedly installed on the lower part of the telescopic section of the hydraulic rod 54.

[0052] Continue reading Figure 1 and Figure 4 The clamping member 53 is in a U-shaped structure, and abutment grooves 531 for abutting the gate valve are provided on one side of the two longitudinal sections of the clamping member 53 close to the middle of the fixed plate 52. The lower part of the pressing member 55 is in an "eight" structure, and the hinge point between the support frame 35 and the track plate frame 32 is on the horizontal plane where the middle of the fixed plate 52 is located.

[0053] See also Figure 1 , Figure 4 and Figure 5 A synchronous plate 56 is rotatably provided in the middle of the rear side of the fixed plate 52, and hinged plates 561 are hinged at both ends of the synchronous plate 56. The end of the hinged plate 561 away from the synchronous plate 56 is hinged to the clamping member 53 at the corresponding position. A No. 2 hydraulic rod 562 is fixedly installed inside the T-shaped plate 51, and the telescopic section of the No. 2 hydraulic rod 562 is fixedly connected to the lower clamping member 53 through a support plate.

[0054] After the pushing triangle block 373 is pressed against the driven triangle block 371, the operator places the gate valve body on the abutment groove 531 of the lower clamping piece 53. At the same time, the operator initially moves the valve body to the upper middle position of the T-shaped plate 51, and the operator manually supports the valve body so that the gate plate placement port of the valve body is vertically facing upward. Then, the No. 1 hydraulic rod 54 is extended to drive the lower clamping piece 53 to move upward, and the lower clamping piece 53 drives the valve body to move synchronously.

[0055] At the same time, the lower clamping member 53 pushes the synchronous plate 56 to rotate through the hinged plate 561 connected to it, and the synchronous plate 56 pulls the upper clamping member 53 downward through the hinged plate 561 connected to the upper clamping member 53, so that the clamping members 53 on the upper and lower sides move synchronously in opposite directions, so that the two clamping members 53 clamp the valve body at the middle height position of the fixed plate 52, and then extend the telescopic section of the No. 1 hydraulic rod 54 to drive the lower part of the pressing member 55 to press against the upper side of the gate placement port of the valve body.

[0056] The inner side surface of the pressing piece 55 in the lower part with an eight-shaped structure can be abutted against to push the valve body to move left and right to the upper middle position of the T-shaped plate 51, and the pressing piece 55 presses on the gate plate placement port of the valve body to fix the valve body in a state in which its gate plate placement port is vertically facing upward, so that at this time, the rotating axis of the turning main machine 4 corresponds to the coaxial position of the sealing surface of the inner cavity of the gate valve.

[0057] See also Figure 1 , Figure 2 and Figure 8 A connecting plate 38 is hinged at the lower part of the U-shaped seat 33, and an electric slider 39 is provided on the upper side of the horizontal section of the sliding plate 31 for sliding left and right. The electric slider 39 is slidably connected to the connecting plate 38 on one side close to the middle part of the bottom plate seat 1.

[0058] When the valve body is clamped and locked on the clamping member 53, the two electric sliders 39 are synchronously moved toward the middle of the base plate seat 1, so that the electric sliders 39 drive the C-shaped seats 33 on both sides to move synchronously through the sliding plate 31, so that the C-shaped seats 33 drive the rotating shaft of the turning main machine 4 thereon to move to the inner cavity of the gate valve, and then the two turning main machines 4 are started at the same time to perform synchronous turning processing on the two sealing surfaces of the inner cavity of the gate valve.

[0059] See also Figure 1 , Figure 6 and Figure 7 The angle adjustment mechanism 3 also includes a locking assembly 36 on the track plate frame 32 and the sliding plate 31 which are jointly arranged at corresponding positions. The locking assembly 36 includes a follower 361 rotatably arranged on the left side of the front part of the track plate frame 32. The follower 361 has a structure with an axis at the rear and a plate at the front. A support plate 362 is hingedly connected to the lower front part of the vertical section of the sliding plate 31. The front part of the follower 361 is slidably connected to the support plate 362 along the length direction of the support plate 362. The locking assembly 36 also includes a locking angle portion 363 for locking the angle between the follower 361 and the track plate frame 32.

[0060] See also Figure 6 and Figure 7 The locking corner portion 363 includes positioning holes 3631, which are arranged on the outer surface of the axial structure of the follower 361 at equal intervals along the circumference of the axial structure. A column member 3632 is slidably arranged inside the track plate frame 32 along its length direction for insertion into the positioning holes 3631, and a coil spring is arranged between the column member 3632 and the track plate frame 32.

[0061] In the initial state, the electric slider 39 drives the C-shaped seat 33 to be located at the end of the track plate frame 32 away from the middle of the base plate seat 1, so that the C-shaped seat 33 drives the turning main machine 4 thereon to be located in the initial position. At this time, the C-shaped seat 33 pushes the plug-in column member 3632 in the direction away from the middle of the base plate seat 1, so that the plug-in column member 3632 is not inserted into the positioning hole 3631, so that the follower 361 can rotate freely at this time, thereby facilitating the adjustment of the elevation angle of the track plate frame 32.

[0062] When the C-shaped seat 33 moves toward the direction close to the middle of the base plate seat 1, the C-shaped seat 33 no longer blocks the plug-in column 3632, so that the coil spring drives the plug-in column 3632 through its own elastic force to be inserted into the positioning hole 3631 at the corresponding position of the follower 361, thereby locking the follower 361 and the track plate frame 32 into a whole. Since the follower 361 cannot rotate relative to the track plate frame 32, the support plate 362 also cannot slide relative to the follower 361.

[0063] Thereby, the vertical ends of the support plate 362 and the sliding plate 31 are connected to the track plate frame 32 to form a triangular structure, so that the elevation angle of the track plate frame 32 is further supported and locked by the self-stability of the triangular structure, preventing the elevation angle of the track plate frame 32 from changing when the U-shaped seat 33 drives the turning host 4 to move and when the turning host 4 is turning, thereby further ensuring the turning processing accuracy.

[0064] See also Fig.10 In addition, the present invention also provides a fire gate valve processing method, and the specific processing method steps are as follows: S1, the operator manually rotates the No. 1 screw 341 according to the angle between the sealing surface of the valve body inner cavity and the vertical center line, and the No. 1 screw 341 drives the track plate frame 32 to change the elevation angle, and then the operator manually rotates the bidirectional screw 342 according to the distance between the two sealing surfaces of the valve body inner cavity, and the bidirectional screw 342 drives the turning main machine 4 to synchronously adjust the position, so that the main axes of the turning main machines 4 on both sides can be respectively located on the colinear position of the two sealing surface axes of the valve body inner cavity.

[0065] S2. The operator manually turns the No. 2 threaded rod 374 to apply a force to the sliding plate 31 to move toward the middle of the base plate seat 1. The sliding plate 31 applies an upward force to the support frame 35 through the track plate frame 32, thereby preventing the gravity of the turning main machine 4 and the valve body from acting on the upper No. 1 screw rod 341 through the lifting plate 34, preventing the No. 1 screw rod 341 from bending due to long-term force, ensuring that the height position of the lifting plate 34 remains unchanged, and increasing the stability of the track plate frame 32.

[0066] S3. The operator places the gate valve body on the abutment groove 531 of the clamping member 53 on the lower side, extends the No. 1 hydraulic rod 54 to drive the clamping member 53 to clamp the valve body at the middle height position of the fixed plate 52, and then extends the telescopic section of the No. 1 hydraulic rod 54 to drive the lower part of the pressing member 55 to abut against the upper side of the gate plate placement port of the valve body, which can fix the valve body in a state where its gate plate placement port is vertically facing upward.

[0067] S4. Synchronously move the two electric sliders 39 toward the middle of the base plate seat 1, so that the electric sliders 39 drive the C-shaped seats 33 on both sides to move synchronously through the sliding plate 31, so that the C-shaped seats 33 drive the rotating shaft of the turning main machine 4 thereon to move to the inner cavity of the gate valve, and then start the two turning main machines 4 at the same time to perform synchronous turning processing on the two sealing surfaces of the inner cavity of the gate valve.

[0068] S5. When the U-shaped seat 33 moves toward the middle of the base plate seat 1, the coil spring drives the column member 3632 to be inserted into the positioning hole 3631 at the corresponding position of the follower 361, thereby locking the follower 361 and the track plate frame 32 into a whole, so that the vertical ends of the support plate 362 and the sliding plate 31 are connected to the track plate frame 32 to form a triangular structure, and the elevation angle of the track plate frame 32 is further supported and locked by the self-stability of the triangular structure.

[0069] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A fire gate valve processing device, comprising a base plate seat (1), characterized in that: At the upper middle position of the bottom plate base (1), an L-shaped plate (2) is fixedly installed. On the bottom plate base (1), two turning main machines (4) arranged symmetrically left and right are connected through an angle adjusting mechanism (3). This processing device further includes a valve clamping mechanism (5) for locking the position of the gate valve. The angle adjusting mechanism (3) includes two sliding plates (31) arranged symmetrically left and right and sliding horizontally on the upper part of the bottom plate base (1). The sliding plates (31) are of an L-shaped structure. At the upper end of the vertical section of the sliding plate (31), a track plate frame (32) is hinged. Inside the track plate frame (32), a U-shaped seat (33) is slidably arranged along its length direction. The U-shaped seat (33) is fixedly connected to the turning main machine (4) by bolts. The angle adjusting mechanism (3) further includes a lifting plate (34) slidably arranged up and down through a guide post at the central position of the upper part of the bottom plate base (1). On the upper part of the lifting plate (34), two support frames (35) arranged symmetrically left and right are slidably arranged. The upper part of the support frame (35) is hinged to one end of the corresponding track plate frame (32) close to the middle of the bottom plate base (1). On the corresponding track plate frame (32) and the sliding plate (31), a locking component (36) is jointly arranged for locking the angle of the track plate frame (32) during the turning processing of the gate valve. The angle adjusting mechanism (3) further includes a support component (37) for supporting the stability of the track plate frame (32). Moving the lifting plate (34) up and down drives the synchronous adjustment of the elevation angles of the track plate frames (32) on both sides through the support frames (35). And the lifting plate (34) drives the gate valve to synchronously adjust its position up and down through the valve clamping mechanism (5). The rotating shaft of the turning main machine (4) driven by the track plate frame (32) is always corresponding to the coaxial line position of the wedge-shaped sealing surface in the inner cavity of the gate valve.

2. A fire gate valve processing device according to claim 1, characterized in that: The valve clamping mechanism (5) includes a T-shaped plate (51) fixedly installed on the upper side of the middle part of the lifting plate (34). On the upper rear side of the horizontal section of the T-shaped plate (51), a fixing plate (52) is fixedly installed. On the front side of the fixing plate (52), two clamping members (53) arranged symmetrically up and down are slidably arranged. On the lower side of the horizontal section of the L-shaped plate (2), a first hydraulic rod (54) is fixedly installed. On the lower part of the telescopic section of the first hydraulic rod (54), a pressing member (55) is fixedly installed.

3. A fire gate valve processing device according to claim 2, characterized in that: The clamping member (53) is of a U-shaped structure. On one side of the two longitudinal sections of the clamping member (53) close to the middle of the fixing plate (52), abutting grooves (531) for abutting against the gate valve are respectively arranged. The lower part of the pressing member (55) is of an eight-shaped structure. The hinge point between the support frame (35) and the track plate frame (32) is on the horizontal plane where the middle part of the fixing plate (52) is located.

4. A fire gate valve processing device according to claim 2, characterized in that: At the middle part of the rear side of the fixing plate (52), a synchronous plate (56) is rotatably arranged. At both ends of the synchronous plate (56), hinge plates (561) are respectively hinged. The end of the hinge plate (561) far from the synchronous plate (56) is hinged to the corresponding clamping member (53). Inside the T-shaped plate (51), a second hydraulic rod (562) is fixedly installed. The telescopic section of the second hydraulic rod (562) is fixedly connected to the lower clamping member (53) through a support plate.

5. A fire gate valve processing device according to claim 1, characterized in that: The lower part of the lifting plate (34) is rotatably provided with a vertically arranged No. 1 screw rod (341), which is threadedly connected to the base plate seat (1). The interior of the lifting plate (34) is rotatably provided with a transversely arranged bidirectional screw rod (342), and two threaded sections of the bidirectional screw rod (342) are respectively threadedly connected to the support frame (35) at corresponding positions.

6. A fire gate valve processing device according to claim 1, characterized in that: A connecting plate (38) is hingedly connected to the lower part of the U-shaped seat (33), and an electric sliding block (39) is slidably arranged on the upper side of the horizontal section of the sliding plate (31) so as to slide left and right. The electric sliding block (39) is slidably connected to the connecting plate (38) on one side close to the middle part of the bottom plate seat (1).

7. A fire gate valve processing device according to claim 1, characterized in that: The locking assembly (36) comprises a follower (361) rotatably arranged on the left side of the front part of the track plate frame (32); the follower (361) is in a structure with a shaft at the rear and a plate at the front; a support plate (362) is hingedly connected to the lower front part of the vertical section of the sliding plate (31); the front part of the follower (361) is slidably connected to the support plate (362) along the length direction thereof; the locking assembly (36) further comprises a locking angle portion (363) for locking the angle between the follower (361) and the track plate frame (32).

8. A fire gate valve processing device according to claim 7, characterized in that: The locking corner portion (363) includes positioning holes (3631), which are arranged at equal intervals along the circumference of the axial structure of the follower (361) on the outer surface of its axial structure, and a column member (3632) is slidably arranged inside the track plate frame (32) along its length direction for insertion into the positioning holes (3631), and a coil spring is arranged between the column member (3632) and the track plate frame (32).

9. A fire gate valve processing device according to claim 1, characterized in that: The support assembly (37) comprises driven triangular blocks (371) fixedly mounted at equal intervals along the left-right direction on the rear side of the horizontal section of the sliding plate (31); the driven triangular blocks (371) on the two sliding plates (31) are symmetrically arranged; the inclined surfaces of the driven triangular blocks (371) face away from the middle of the base plate seat (1); an active plate (372) is provided on the rear side of the upper part of the base plate seat (1) for forward and backward sliding; two groups of symmetrically arranged pushing triangular blocks (373) are fixedly mounted on the front side of the active plate (372); each group is composed of pushing triangular blocks (373) arranged at equal intervals along the left-right direction; the inclined surfaces of the pushing triangular blocks (373) face toward the middle of the base plate seat (1); a second threaded rod (374) is rotatably provided on the rear side of the vertical section of the L-shaped plate (2); the second threaded rod (374) is threadedly connected to the active plate (372).

10. A method for processing a fire gate valve, using the fire gate valve processing device according to any one of claims 1 to 9, characterized in that: The specific processing steps are as follows: S1. First, the height of the lifting plate (34) and the distance between the two support frames (35) are adjusted up and down, so as to synchronously adjust the elevation angle and position of the track plate frame (32) and the height of the clamping valve mechanism (5); S2, locking the elevation angle of the track plate frame (32) and the height of the gate valve through the support assembly (37); S3, placing and clamping the gate valve inside the valve clamping mechanism (5), so that the rotation axis of the turning main machine (4) always corresponds to the coaxial position of the wedge-shaped sealing surface of the inner cavity of the gate valve; S4, moving the rotating shaft of the turning machine (4) to the inside of the gate valve, so that the turning machine (4) turns the wedge-shaped sealing surface of the inner cavity of the gate valve; S5. When the turning main machine (4) moves in a direction close to the gate valve, the locking assembly (36) further automatically locks the angle between the track plate frame (32) and the sliding plate (31).

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