A fire control gate valve processing device and method

Abstract

The present invention relates to the technical field of gate valve processing, specifically a gate valve processing device and method for fire protection, including a bottom plate seat. In the middle position of the upper part of the bottom plate seat, an L-shaped plate is fixedly installed. Two symmetrically arranged turning main machines are connected to the bottom plate seat through an angle adjustment mechanism. The processing device further includes a valve clamping mechanism for locking the position of the gate valve. The present invention uses the valve clamping 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 at the same time, the valve clamping mechanism is driven to adjust the position of the gate valve, so that the rotating shaft of the turning main machine can always correspond to the coaxial line position of the wedge-shaped sealing surface in the inner cavity of the gate valve, simplifying the adjustment steps, improving the processing effect, and enabling the elevation angles of the turning main machines on both sides to be consistent, thus ensuring the processing accuracy. The locking assembly can automatically lock the track plate frame and the sliding plate.

Description

Technical Field

[0001] The present invention relates to the technical field of gate valve processing, and specifically to a processing device and method for a fire protection gate valve. Background Art

[0002] A fire protection gate valve is a valve used to control the on-off of fluid in a fire protection system, mainly composed of components such as a valve body, a valve cover, a gate plate, a valve stem, and a handwheel. The valve body is the main part of the gate valve, with a passage for fluid to pass through inside. Gate valves are classified into wedge gate plate gate valves and parallel gate plate gate valves according to the configuration of the sealing surface.

[0003] Among them, the gate plate of the wedge gate plate gate valve is wedge-shaped, as shown in Figure 8 and Figure 9 shown, which 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. Currently, mainly two lathe spindles arranged symmetrically on the left and right drive the turning tools to synchronously extend into the inside of the gate valve, so as to perform turning processing on the sealing surface of the inner cavity of the gate valve. Since the sealing surfaces on both sides of the inner cavity of the wedge gate plate gate valve have a structure with a larger upper spacing and a smaller lower spacing, the existing lathe spindles need to be tilted to the position coaxial with the inner cavity sealing surface during turning.

[0004] However, the angle adjustment of the existing lathe spindles is relatively cumbersome and difficult. When turning the inner cavity surfaces of gate valves with different tilting angles, the angle adjustment time is relatively long, reducing the processing efficiency. Moreover, it is difficult to make the angle adjustments of the two lathe spindles on both sides consistent, resulting in inconsistent tilting 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 processing device for a fire protection gate valve, including a bottom plate seat. An L-shaped plate is fixedly installed at the center position of the upper part of the bottom plate seat. Two turning main machines arranged symmetrically on the left and right are connected to the bottom 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 arranged symmetrically on the left and right and slidably provided on the upper part of the bottom plate seat. The sliding plates are in an L-shaped structure. The upper end of the vertical section of the sliding plate is hinged with a track plate frame. A U-shaped seat is slidably provided inside the track plate frame along its length direction. The U-shaped seat is fixedly connected to the turning main machine through bolts.

[0007] The angle adjustment mechanism also includes a lifting plate slidably provided up and down at the center position of the upper part of the bottom plate seat through a guiding column. Two supporting frames arranged symmetrically on the left and right are slidably provided on the upper part of the lifting plate. The upper part of the supporting frame is hinged to one end of the corresponding track plate frame close to the middle of the bottom plate seat.

[0008] A locking assembly for locking the angle of the track slab frame during turning machining of the gate valve is provided on the corresponding track slab frame and the sliding plate. The angle adjustment mechanism further includes a support assembly for supporting the stability of the track slab frame.

[0009] Moving the lifting plate up and down drives the synchronous adjustment of the elevation angles of the track slab frames on both sides through the support frame. Moreover, the lifting plate drives the synchronous up and down position adjustment of the gate valve through the valve clamping mechanism. The rotating shaft of the turning main machine driven by the track slab frame always corresponds to the coaxial line position of the wedge-shaped sealing surface in the inner cavity of the gate valve.

[0010] Preferably, the valve clamping mechanism includes a T-shaped plate fixedly installed on the upper side of the middle part of the lifting plate. A fixing plate is fixedly installed on the rear side of the upper part of the horizontal section of the T-shaped plate. Two symmetrically arranged clamping members are slidably arranged up and down on the front side of the fixing plate. A first hydraulic rod is fixedly installed on the lower side of the horizontal section of the L-shaped plate. A pressing member is fixedly installed on the lower part of the telescopic section of the first hydraulic rod.

[0011] Preferably, the clamping member has a U-shaped structure. A abutting groove for abutting against the gate valve is provided on one side of each of the two longitudinal sections of the clamping member close to the middle part of the fixing plate. The lower part of the pressing member has an inverted V-shaped structure. The hinge point between the support frame and the track slab frame is on the horizontal plane where the middle part of the fixing plate is located.

[0012] Preferably, a synchronous plate is rotatably arranged in the middle part of the rear side of the fixing plate. Hinge plates are hinged at both ends of the synchronous plate. The end of the hinge plate far from the synchronous plate is hinged to the corresponding clamping member. A second hydraulic rod is fixedly installed inside the T-shaped plate. The telescopic section of the second hydraulic rod is fixedly connected to the lower clamping member through a support plate.

[0013] Preferably, a vertically arranged first screw rod is rotatably arranged at the lower part of the lifting plate. The first screw rod is threadedly connected to the bottom plate seat. A horizontally arranged bidirectional screw rod is rotatably arranged inside the lifting plate. The two threaded sections of the bidirectional screw rod are respectively threadedly connected to the corresponding support frames.

[0014] Preferably, a connecting plate is hinged at the lower part of the U-shaped seat. Electric sliders are slidably arranged left and right on the upper side of the horizontal section of the sliding plate. The side of the electric slider close to the middle part of the bottom plate seat is slidably connected to the connecting plate.

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

[0016] Preferably, the corner locking part includes positioning holes which are equidistantly arranged on the outer side surface of the shaft structure of the follower along the circumferential direction of the shaft structure of the follower. An inserting column part for inserting into the positioning holes is slidably arranged inside the track plate frame along its length direction, and a helical spring is arranged between the inserting column part and the track plate frame.

[0017] Preferably, the support assembly includes driven triangular blocks fixedly installed at equal intervals along the left-right direction at the rear side of the horizontal section of the sliding plate. The driven triangular blocks on the two sliding plates are symmetrically arranged, and the inclined surfaces of the driven triangular blocks face away from the middle of the bottom plate seat. A driving plate is slidably arranged back and forth at the rear side of the upper part of the bottom plate seat. Two groups of driving triangular blocks arranged symmetrically left and right are fixedly installed on the front side of the driving plate, and each group is composed of driving triangular blocks arranged at equal intervals along the left-right direction. The inclined surfaces of the driving triangular blocks face towards the middle of the bottom plate seat. A second threaded rod is rotatably arranged at the rear side of the vertical section of the L-shaped plate, and the second threaded rod is threadedly connected with the driving plate.

[0018] Preferably, the present invention also provides a processing method for a fire protection gate valve. 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 valve clamping 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 shaft of the turning lathe main body always corresponds to the coaxial line position of the wedge-shaped sealing surface inside the gate valve cavity.

[0021] S4. Move the rotating shaft of the turning lathe main body into the gate valve, so that the turning lathe main body turns the wedge-shaped sealing surface inside the gate valve cavity.

[0022] S5. When the turning lathe main body moves towards 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: First, the present invention uses a valve clamping 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 lathe main bodies can be synchronously adjusted, and at the same time, the valve clamping mechanism is driven to adjust the position of the gate valve, so that the rotating shaft of the turning lathe main body can always correspond to the coaxial line position of the wedge-shaped sealing surface inside the gate valve cavity, simplifying the adjustment steps, improving the processing effect, and enabling the elevation angles of the turning lathe main bodies on both sides to be consistent, thus ensuring the processing accuracy.

[0024] Second, the locking component of the present invention can further automatically lock and connect the track plate frame and the sliding plate when the turning main machine moves or turns the gate valve, and form a triangular structure among the track plate frame, the sliding plate and the locking component. Furthermore, after the locking component locks the track plate frame and the sliding plate, it can support the track plate frame, thereby increasing the stability of the track plate frame and the turning main machine, further ensuring the machining accuracy. And when the turning main machine moves to the initial position, the locking component can automatically unlock the track plate frame and the sliding plate, thus facilitating the adjustment of the angle of the track plate frame, further simplifying the adjustment steps and improving the machining efficiency.

[0025] Third, the support component of the present invention can push the sliding plate in the direction close to the middle of the bottom plate seat, so that the sliding plate drives the track plate frame to press against the support frame, and then the track plate frame applies an upward moving force to the lifting plate by pushing the support frame, avoiding the gravity of the turning main machine and the valve body acting entirely on the upper No. 1 screw through the lifting plate, preventing the No. 1 screw from being bent due to long-term stress, thus 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 will be further described below in conjunction with the drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the overall structure when the present invention turns 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 schematic diagram of the structure of the bottom plate seat, the L-shaped plate, the sliding plate, the track plate frame and the support component in the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the T-shaped plate, the fixing plate, the clamping member, the lifting plate, the abutting groove and the No. 2 hydraulic rod in the present invention.

[0031] Figure 5 It is a schematic diagram of the structure of the fixing plate, the clamping member, the synchronous plate and the hinge plate in the present invention.

[0032] Figure 6 It is a schematic diagram of the structure 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 lock angle portion in the present invention.

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

[0035] Figure 9 It is a structural schematic diagram of a gate valve body.

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

[0037] In the figure: 1. Bottom plate seat; 2. L-shaped plate; 3. Angle adjustment mechanism; 4. Turning main machine; 5. Valve clamping mechanism; 31. Sliding plate; 32. Track plate rack; 33. U-shaped seat; 34. Lifting plate; 35. Support frame; 36. Locking assembly; 37. Support assembly; 38. Connecting plate; 39. Electric slider; 51. T-shaped plate; 52. Fixed plate; 53. Clamping member; 54. First hydraulic rod; 55. Pressing member; 56. Synchronous plate; 341. First screw rod; 342. Bi-directional screw rod; 361. Follow-up member; 362. Support plate; 363. Locking angle part; 371. Driven triangular block; 372. Active plate; 373. Pushing triangular block; 374. Second threaded rod; 531. Abutting groove; 561. Hinge plate; 562. Second hydraulic rod; 3631. Positioning hole; 3632. Inserting column member. Detailed implementation manners

[0038] The embodiments of the present invention are described in detail below. The described embodiments are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. For those without specific technical or conditions noted in the embodiments, the techniques or conditions described in the literature in this field or according to the product specifications are followed.

[0039] Refer to Figure 1 and Figure 9 , a processing device for a fire fighting gate valve, including a bottom plate seat 1, an L-shaped plate 2 is fixedly installed at the central position of the upper part of the bottom plate seat 1, and two turning main machines 4 arranged symmetrically left and right are connected to the bottom plate seat 1 through an angle adjustment mechanism 3. The processing device further 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 inner cavity of the fire fighting gate valve, first adjust the angle adjustment mechanism 3 according to the angle between the sealing surface of the inner cavity of the valve and the vertical center line and the distance between the two sealing surfaces of the inner cavity of the valve, so that the angle adjustment mechanism 3 drives the elevation angle of the turning main machine 4 to be adjusted to be consistent with the angle between the sealing surface of the inner cavity of the valve and the vertical center line, and it can make the rotation axis of the turning main machine 4 always correspond to the coaxial line position of the wedge-shaped sealing surface of the inner cavity of the gate valve, simplifying the adjustment steps. Then, place the valve body to be processed on the valve clamping mechanism 5 and lock it, and then move the turning main machine 4 simultaneously to turn and process the two sealing surfaces of the inner cavity of the valve.

[0041] Refer to Figure 1 ,Figure 2 and Figure 8 The angle adjustment mechanism 3 includes two symmetrically arranged sliding plates 31 that are slidably disposed left and right on the upper part of the bottom plate base 1. The sliding plate 31 has an L-shaped structure. The upper end of the vertical section of the sliding plate 31 is hinged with a track plate frame 32. A U-shaped seat 33 is slidably disposed 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] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 The angle adjustment mechanism 3 further includes a lifting plate 34 that is slidably disposed up and down through a guide post at the central position of the upper part of the bottom plate base 1. Two symmetrically arranged support frames 35 are slidably disposed left and right on the upper part of the lifting plate 34. The upper part of the support frame 35 is hinged to one end of the corresponding track plate frame 32 close to the middle part of the bottom plate base 1.

[0043] Refer to Figure 1 and Figure 2 A vertically arranged first screw rod 341 is rotatably disposed at the lower part of the lifting plate 34. The first screw rod 341 is threadedly connected to the bottom plate base 1. A horizontally arranged two-way screw rod 342 is rotatably disposed inside the lifting plate 34. The two threaded sections of the two-way screw rod 342 are respectively threadedly connected to the corresponding support frames 35.

[0044] When it is necessary to turn the sealing surface of the inner cavity of the fire protection gate valve, the operator manually rotates the first screw rod 341 according to the angle between the sealing surface of the inner cavity of the valve and the vertical center line. The first screw rod 341 drives the lifting plate 34 to adjust the height position up and down. The lifting plate 34 drives the height of one end of the two sides of the track plate frame 32 close to the middle part of the bottom plate base 1 to change synchronously through the support frames 35.

[0045] Since one end of the track plate frame 32 far from the middle part of the bottom plate base 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 bottom plate base 1, the height of one end of the track plate frame 32 far from the middle part of the bottom plate base 1 remains unchanged all the time. Furthermore, the elevation angle of the track plate frame 32 changes synchronously. The track plate frame 32 drives the turning main machine 4 to adjust the elevation angle synchronously through the U-shaped seat 33 thereon.

[0046] It should be noted that an arc-shaped scale plate is fixedly installed on the upper side of the rear part of the vertical section of the left sliding plate 31. A pointer is fixedly installed at the left end of the rear part 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 hinge axis of the left track plate frame 32 and the left track plate frame 32. Therefore, by observing the scale on the arc-shaped scale plate pointed by the pointer, the elevation angle of the current track plate frame 32 and the turning main machine 4 can be visually observed, thus facilitating the adjustment.

[0047] Subsequently, the operator manually rotates the bidirectional screw 342 according to the distance between the two sealing surfaces in the valve body cavity, so that the bidirectional screw 342 drives the two support frames 35 to move synchronously and in opposite directions, thereby adjusting the distance between the two support frames 35. The support frame 35 drives the corresponding slide 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. Furthermore, the main axes of the turning main machines 4 on both sides can be respectively located at the collinear positions of the axes of the two sealing surfaces in the valve body cavity.

[0048] Refer to Figure 1 and Figure 3 The angle adjustment mechanism 3 further includes a support assembly 37 for supporting the stability of the track plate frame 32. The support assembly 37 includes driven triangular blocks 371 fixedly installed at equal intervals in the horizontal section at the rear of the slide plate 31 along the left-right direction. The driven triangular blocks 371 on the two slide plates 31 are symmetrically arranged. The inclined surface of the driven triangular block 371 faces away from the middle of the bottom plate seat 1. A driving plate 372 is slidably arranged in the front-rear direction at the rear of the upper part of the bottom plate seat 1. Two groups of driving triangular blocks 373 arranged symmetrically left and right are fixedly installed on the front side of the driving plate 372. Each group consists of driving triangular blocks 373 arranged at equal intervals along the left-right direction. The inclined surface of the driving triangular block 373 faces towards the middle of the bottom plate seat 1. A second threaded rod 374 is rotatably arranged at the rear of the vertical section of the L-shaped plate 2. The second threaded rod 374 is threadedly connected to the driving plate 372.

[0049] In the initial state, the driving plate 372 drives the driving triangular blocks 373 thereon to be located at the rear side and not in contact with the driven triangular blocks 371. After the position and elevation angle of the track plate frame 32 are adjusted, the operator manually rotates the second threaded rod 374 to drive the driving plate 372 to move forward. The driving plate 372 drives the driving triangular blocks 373 thereon to move forward synchronously, so that the inclined surface of the driving triangular block 373 moves to abut against the inclined surface of the driven triangular block 371 at the corresponding position in front of it, thereby enabling the driving triangular block 373 to apply a force to the slide plate 31 to move towards the middle of the bottom plate seat 1 by pushing the driven triangular block 371.

[0050] The slide 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 first screw 341 through the lifting plate 34, preventing the first screw 341 from being bent due to long-term stress, ensuring that the height position of the lifting plate 34 remains unchanged, and pulling the first screw 341 through the support frame 35 driving the lifting plate 34, avoiding the thread connection between the first screw 341 and the bottom plate seat 1 from shaking, and further increasing the stability of the track plate frame 32.

[0051] Refer to Figure 1 andFigure 4 The pinch 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 rear side of the upper part of the horizontal section of the T-shaped plate 51. Two symmetrically arranged clamping members 53 are slidably arranged up and down on the front side of the fixed plate 52. A first 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 first hydraulic rod 54.

[0052] Continue to refer to Figure 1 and Figure 4 The clamping member 53 has a U-shaped structure. On one side of the two longitudinal sections of the clamping member 53 close to the middle of the fixed plate 52, a abutting groove 531 for abutting against the gate valve is provided. The lower part of the pressing member 55 has an inverted V-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 fixed plate 52 is located.

[0053] Refer to Figure 1 、 Figure 4 and Figure 5 In the rear middle part of the fixed plate 52, a synchronous plate 56 is rotatably arranged. At both ends of the synchronous plate 56, hinge plates 561 are hinged. The end of the hinge plate 561 away 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, and the telescopic section of the second hydraulic rod 562 is fixedly connected to the lower clamping member 53 through a support plate.

[0054] After the triangular block 373 is pushed to abut tightly against the driven triangular block 371, the operator places the gate valve body on the abutting groove 531 of the lower clamping member 53. At the same time, the operator initially moves the valve body to the middle upper position of the T-shaped plate 51, and the operator manually holds the valve body to make the gate plate placement opening of the valve body face vertically upward. Then, the first hydraulic rod 54 is extended to drive the lower clamping member 53 to move upward, and the lower clamping member 53 drives the valve body to move synchronously.

[0055] At the same time, the lower clamping member 53 drives the synchronous plate 56 to rotate through the hinge plate 561 connected thereto. The synchronous plate 56 pulls the upper clamping member 53 to move downward through the hinge plate 561 connected to the upper clamping member 53, so that the upper and lower clamping members 53 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. Then, the telescopic section of the first hydraulic rod 54 is extended to drive the lower part of the pressing member 55 to abut against the upper side of the gate plate placement opening of the valve body.

[0056] Through the abutment of the inner side of the pressing member 55 with an inverted V-shaped lower part, the valve body can be pushed to move slightly left and right to the middle upper position of the T-shaped plate 51. And through the pressing of the pressing member 55 on the gate plate placement opening of the valve body, the valve body can be fixed in the state where its gate plate placement opening faces vertically upward. Furthermore, at this time, the rotating shaft of the turning main machine 4 corresponds to the coaxial line position of the inner cavity sealing surface of the gate valve.

[0057] Refer to Figure 1 、 Figure 2 and Figure 8 As shown in, a connecting plate 38 is hinged to the lower part of the U-shaped seat 33. Electric sliders 39 are slidably arranged on the upper sides of the horizontal sections of the sliding plates 31. One side of each electric slider 39 close to the middle of the bottom plate seat 1 is slidably connected to the connecting plate 38.

[0058] When the valve body is clamped and locked on the clamping member 53, the two electric sliders 39 are synchronously moved towards the middle of the bottom plate seat 1, so that the electric sliders 39 drive the U-shaped seats 33 on both sides to move synchronously through the sliding plates 31, so that the U-shaped seats 33 drive the rotating shafts of the turning main machines 4 thereon to move to the inner cavity of the gate valve. Then, the two turning main machines 4 are simultaneously started to perform synchronous turning processing on the two sealing surfaces of the inner cavity of the gate valve.

[0059] Refer to Figure 1 、 Figure 6 and Figure 7 As shown in, the angle adjusting mechanism 3 further includes a locking component 36 jointly arranged on the corresponding track plate frame 32 and the sliding plate 31. The locking component 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 a shaft at the rear and a plate at the front. A support plate 362 is hinged to the lower part of the front side 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 component 36 further includes a locking angle part 363 for locking the angle between the follower 361 and the track plate frame 32.

[0060] Refer to Figure 6 and Figure 7 As shown in, the locking angle part 363 includes a positioning hole 3631. The positioning holes 3631 are equidistantly arranged on the outer side surface of the shaft structure of the follower 361 along the circumferential direction of the shaft structure. An inserting column member 3632 for inserting into the positioning hole 3631 is slidably arranged inside the track plate frame 32 along its length direction. A spiral spring is arranged between the inserting column member 3632 and the track plate frame 32.

[0061] In the initial state, the electric slider 39 drives the U-shaped seat 33 to be at the end of the track plate frame 32 far from the middle of the bottom plate seat 1, so that the U-shaped seat 33 drives the turning main machine 4 thereon to be at the initial position. At this time, the U-shaped seat 33 pushes the inserting column member 3632 in the direction away from the middle of the bottom plate seat 1, so that the inserting column member 3632 is not inserted into the positioning hole 3631, so that the follower 361 can rotate freely at this time, and thus it is convenient to adjust the elevation angle of the track plate frame 32.

[0062] When the U-shaped seat 33 moves towards the middle of the bottom plate seat 1, the U-shaped seat 33 no longer blocks the plug member 3632, allowing the helical spring to drive the plug member 3632 to insert into the positioning hole 3631 at the corresponding position of the follower member 361 by its own elastic force, thereby locking the follower member 361 and the track plate frame 32 into a whole. Since the follower member 361 cannot rotate relative to the track plate frame 32, the support plate 362 also cannot slide relative to the follower member 361.

[0063] As a result, the support plate 362, the vertical end of the sliding plate 31 and the track plate frame 32 are connected into 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, preventing the elevation angle of the track plate frame 32 from changing when the U-shaped seat 33 drives the turning main machine 4 to move and when the turning main machine 4 is turning, further ensuring the turning processing accuracy.

[0064] Refer to Figure 10 , in addition, the present invention also provides a processing method for a fire protection gate valve. The specific processing method steps are as follows: S1. The operator manually rotates the first screw rod 341 according to the angle between the sealing surface of the valve body cavity and the vertical center line. The first screw rod 341 drives the elevation angle of the track plate frame 32 to change. Subsequently, the operator manually rotates the bidirectional screw rod 342 according to the distance between the two sealing surfaces of the valve body cavity. The bidirectional screw rod 342 drives the turning main machine 4 to synchronously adjust the position, so that the main axes of the two turning main machines 4 on both sides can be respectively located at the collinear positions of the axes of the two sealing surfaces of the valve body cavity.

[0065] S2. The operator manually rotates the second threaded rod 374 to apply a force to the sliding plate 31 to move it towards the middle of the bottom 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 first screw rod 341 through the lifting plate 34 all the time, preventing the first screw rod 341 from being bent due to long-term stress, 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 abutting groove 531 of the lower clamping member 53, extends the first hydraulic rod 54 to drive the clamping member 53 to clamp the valve body at the middle height position of the fixing plate 52, and then extends the telescopic section of the first 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, so as to fix the valve body in the state where the gate plate placement port is vertically upward.

[0067] S4. Synchronously move the two electric sliders 39 towards the middle of the bottom plate seat 1, so that the electric sliders 39 drive the U-shaped seats 33 on both sides to move synchronously through the sliding plates 31, thereby enabling the U-shaped seats 33 to drive the rotating shafts of the turning main machines 4 thereon to move to the inner cavity of the gate valve. Then, start the two turning main machines 4 simultaneously 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 towards the middle of the bottom plate seat 1, the spiral spring drives the plug member 3632 to insert into the positioning hole 3631 at the corresponding position of the follower member 361, thereby locking the follower member 361 and the track plate frame 32 into a whole, so that the support plate 362 and the vertical end of 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 through the self-stability of the triangular structure.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and still be covered by the protection scope of the present invention.

Claims

1. A processing device for a fire control gate valve, comprising a bottom plate seat, characterized in that, An L-shaped plate is fixedly installed at the central position on the upper part of the bottom plate seat. Two symmetrically arranged turning main machines are connected to the bottom plate seat through an angle adjustment mechanism. The processing device further includes a valve clamping mechanism for locking the position of the gate valve. The angle adjustment mechanism includes two symmetrically arranged sliding plates that slide left and right on the upper part of the bottom plate seat. The sliding plates are of L-shaped structure. The upper end of the vertical section of the sliding plate is hinged with a track plate frame. 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 through bolts. The angle adjustment mechanism further includes a lifting plate that slides up and down through a guide post at the central position on the upper part of the bottom plate seat. Two symmetrically arranged support frames slide left and right on the upper part of the lifting plate. The upper part of the support frame is hinged to one end of the corresponding track plate frame close to the middle of the bottom plate seat. A locking component for locking the angle of the track plate frame during turning processing of the gate valve is jointly provided on the corresponding track plate frame and the sliding plate. The angle adjustment mechanism further includes a support component for supporting the stability of the track plate frame. Moving the lifting plate up and down drives the synchronous adjustment of the elevation angles of the track plate frames on both sides through the support frames. And the lifting plate drives the gate valve to synchronously move up and down through the valve clamping mechanism. The rotating shaft of the turning main machine driven by the track plate frame is always corresponding to the coaxial line position of the wedge-shaped sealing surface in the inner cavity of the gate valve. The valve clamping 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 rear side of the upper part of the horizontal section of the T-shaped plate. Two symmetrically arranged clamping pieces slide up and down on the front side of the fixed plate. A first hydraulic rod is fixedly installed on the lower side of the horizontal section of the L-shaped plate. A pressing piece is fixedly installed on the lower part of the telescopic section of the first hydraulic rod. The locking component includes a follower arranged to rotate on the left front part of the track plate frame. The follower is of a structure with a shaft at the rear and a plate at the front. A support plate is hinged to the lower front side of the vertical section of the sliding plate. The front part of the follower is slidably connected to the support plate along the length direction of the support plate. The locking component further includes an angle locking part for locking the angle between the follower and the track plate frame. The support component 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 surface of the driven triangular block faces away from the middle of the bottom plate seat. A driving plate slides back and forth on the rear side of the upper part of the bottom plate seat. Two groups of symmetrically arranged pushing triangular blocks are fixedly installed on the front side of the driving plate. Each group consists of pushing triangular blocks arranged at equal intervals along the left-right direction. The inclined surface of the pushing triangular block faces towards the middle of the bottom plate seat. A second threaded rod is rotatably arranged on the rear side of the vertical section of the L-shaped plate. The second threaded rod is threadedly connected to the driving plate.

2. The processing device for a fire control gate valve according to claim 1, characterized in that, The clamping piece is of a U-shaped structure. Abuttment grooves for abutting against the gate valve are respectively opened on one side of the two longitudinal sections of the clamping piece close to the middle of the fixed plate. The lower part of the pressing piece is of an eight-shaped structure. The hinge point between the support frame and the track plate frame is on the horizontal plane where the middle part of the fixed plate is located.

3. A processing device for a fire control gate valve according to claim 1, characterized in that, A synchronous plate is rotatably arranged in the middle of the rear side of the fixed plate. Hinge plates are respectively hinged at both ends of the synchronous plate. The end of the hinge plate away from the synchronous plate is hinged to the corresponding clamping piece. A second hydraulic rod is fixedly installed inside the T-shaped plate. The telescopic section of the second hydraulic rod is fixedly connected to the lower clamping piece through a support plate.

4. A processing device for a fire control gate valve according to claim 1, characterized in that, A first screw rod vertically arranged is rotatably provided at the lower part of the lifting plate. The first screw rod is in threaded connection with the bottom plate seat. A bidirectional screw rod horizontally arranged is rotatably provided inside the lifting plate. Two threaded sections of the bidirectional screw rod are respectively in threaded connection with the support frames at corresponding positions.

5. A processing device for a fire control gate valve according to claim 1, characterized in that, A connecting plate is hinged at the lower part of the U-shaped seat. Electric sliders are slidably arranged on the upper side of the horizontal section of the sliding plate. One side of the electric slider close to the middle of the bottom plate seat is slidably connected with the connecting plate.

6. The processing device for a fire control gate valve according to claim 5, characterized in that, The locking angle part includes positioning holes which are arranged at equal intervals along the circumferential direction of the shaft structure of the follower on the outer side surface of its shaft structure. A plug column member for inserting into the positioning holes is slidably arranged inside the track plate frame along its length direction. A spiral spring is arranged between the plug column member and the track plate frame.

7. A processing method for a fire protection gate valve, which uses the fire protection gate valve processing device according to any one of the above claims 1 to 6, is characterized in that, 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 valve clamping mechanism; S2. Lock the elevation angle of the track plate frame and the height of the gate valve through the support assembly; S3. Place and clamp the gate valve inside the valve clamping mechanism, so that the rotating shaft of the turning main machine always corresponds to the coaxial line position of the wedge-shaped sealing surface in the inner cavity of the gate valve; S4. Move the rotating shaft of the turning main machine into the gate valve, so that the turning main machine turns the wedge-shaped sealing surface in the inner cavity of the gate valve; S5. When the turning main machine moves towards the gate valve, the locking assembly further automatically locks the angle between the track plate frame and the sliding plate.

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