Gate crank arm locking device and gate crank arm locking method

Abstract

The invention provides a gate crank arm locking device and a gate crank arm locking method. The gate crank arm locking device comprises a base, a first crank arm, a first pawl, a first ratchet wheel and a first telescopic assembly. The first crank arm is movably connected with the base. The first pawl is movably connected with the base, and the first pawl is obliquely arranged. The first ratchet wheel is fixedly connected with the first crank arm and rotates along with the first crank arm. The first telescopic assembly is movably connected with the base and the first pawl, and the first telescopic assembly is used for driving the first pawl to hook the first ratchet wheel. The locking device solves the problem that an existing locking device is prone to failure due to the fact that a limiting pin is bent.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering equipment, and in particular to a gate crank arm locking device and a gate crank arm locking method. Background Art

[0002] The flap gate driven by the bottom shaft is a kind of movable door body. When the flap gate is in working state, the water pressure load it bears is transmitted to the bottom shaft through the door leaf, the bottom shaft is transmitted to the crank arm, the crank arm is transmitted to the locking device, and finally to the concrete structure at the bottom of the hoist room. The locking device is a key link in the load transfer process, which can ensure that the water pressure load borne by the gate is finally safely transferred to the concrete structure.

[0003] For example, the locking device may include a limit pin, a limit seat and a ratchet flange. The ratchet flange is arranged on the crank arm and rotates with the crank arm. The limit pin is inserted through the limit seat and can slide up and down. The limit pin slides downward and is inserted into the ratchet teeth of the ratchet flange to achieve the locking effect. Since the limit pin is arranged vertically, it is easily bent and ineffective due to the action of the ratchet teeth, thereby causing the locking effect to be lost. Therefore, the existing locking device has the problem of being easily ineffective due to the limit pin being bent. Summary of the invention

[0004] The purpose of the present application is to provide a gate crank arm locking device in which the first pawl is more difficult to be bent, comprising a base, a first crank arm, a first pawl, a first ratchet and a first telescopic assembly. The first crank arm is movably connected to the base. The first pawl is movably connected to the base, and the first pawl is tilted. The first ratchet is fixedly connected to the first crank arm, and the first ratchet rotates with the first crank arm. The first telescopic assembly is movably connected to the base and the first pawl, and the first telescopic assembly is used to drive the first pawl to hook the first ratchet.

[0005] Optionally, the gate arm locking device also includes a first fixed shaft, which is fixed to the base, the first pawl is sleeved on the first fixed shaft and is rotatable relative to the first fixed shaft, and the first telescopic assembly is located between the first fixed shaft and the first ratchet.

[0006] Optionally, the first ratchet includes a plurality of first teeth, each of which is connected in sequence, each of which corresponds to a predetermined rotation angle of the first crank arm, and the first pawl is used to hook each of the first teeth.

[0007] Optionally, the first telescopic assembly includes a first hydraulic cylinder and a first supporting platform, the first hydraulic cylinder and the first supporting platform are pivotally connected, the first hydraulic cylinder and the first pawl are pivotally connected, the first supporting platform is fixed to the base, the first supporting platform and the first ratchet are spaced apart, and the first hydraulic cylinder and the base are spaced apart.

[0008] Optionally, the gate crank arm locking device further includes a second crank arm, a second pawl, a second ratchet and a second telescopic assembly. The second crank arm is movably connected to the base. The second pawl is movably connected to the base, and the second pawl is tilted. The second ratchet is fixedly connected to the second crank arm, and the second ratchet rotates with the second crank arm. The second telescopic assembly is movably connected to the base and the second pawl, and the second telescopic assembly is used to drive the second pawl to hook the second ratchet.

[0009] Optionally, the gate arm locking device also includes a second fixed shaft, the second fixed shaft is fixed to the base, the second pawl is sleeved on the second fixed shaft and is rotatable relative to the second fixed shaft, and the second telescopic assembly is located between the second fixed shaft and the second ratchet.

[0010] Optionally, the second ratchet includes a plurality of second tooth portions, each of the second tooth portions is connected in sequence, each second tooth portion corresponds to a predetermined rotation angle of the second crank arm, and the second pawl is used to hook each of the second tooth portions.

[0011] Optionally, the second telescopic assembly includes a second hydraulic cylinder and a second supporting platform, the second hydraulic cylinder and the second supporting platform are pivotally connected, the second hydraulic cylinder and the second pawl are pivotally connected, the second supporting platform is fixed to the base, the second supporting platform and the second ratchet are spaced apart, and the second hydraulic cylinder and the base are spaced apart.

[0012] The present application also provides a gate crank arm locking method, which uses the gate crank arm locking device, including: when the first crank arm rotates to a predetermined angle, the first telescopic assembly drives the first pawl to hook onto the corresponding first tooth portion.

[0013] The present application also provides a gate crank arm locking method, which uses the gate crank arm locking device, including: when the first crank arm rotates to a predetermined angle and the second crank arm rotates to the same predetermined angle, the second telescopic assembly drives the second pawl to hook the corresponding second tooth portion.

[0014] The beneficial effects of the present application are as follows: by setting a foundation, a first crank arm, a first pawl, a first ratchet and a first telescopic assembly. The first crank arm is movably connected to the foundation. The first pawl is movably connected to the foundation, and the first pawl is tilted. The first ratchet is fixedly connected to the first crank arm, and the first ratchet rotates with the first crank arm. The first telescopic assembly is movably connected to the foundation and the first pawl, and the first telescopic assembly is used to drive the first pawl to hook the first ratchet.

[0015] Since the first telescopic component can drive the first pawl to hook the first ratchet, and the first pawl is arranged at an angle, it is not easy to bend the first pawl when the first ratchet presses against the first pawl (because after the first pawl is arranged at an angle, the torque of the force of the first ratchet pressing against the first pawl to the connection point between the first telescopic component and the first pawl is smaller, and compared with the vertical arrangement of the first pawl, the former is less likely to bend the first pawl), thereby making it more difficult for the first pawl to fail due to being bent.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the present application is described in detail below with reference to the preferred embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional view of the application of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully closed state);

[0018] Figure 2 It is a partial left view of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully closed state);

[0019] Figure 3 In the first embodiment of the present application, Figure 1 A partial enlarged view in the C direction (the first pawl is omitted);

[0020] Figure 4 It is a partial left view of the gate crank arm locking device in the first embodiment of the present application (the gate is in a 30-degree open state, and the first crank arm is in a locked state);

[0021] Figure 5 It is a partial left view of the gate crank arm locking device in the first embodiment of the present application (the gate is in a 60-degree partial open state, and the first crank arm is in a locked state);

[0022] Figure 6 It is a partial left view of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully open state, and the first crank arm is in a locked state);

[0023] Figure 7This is a left view of the application of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully closed state, and a partial view of the first crank arm in a fully open state is shown at the same time. The rotation direction of the first crank arm is as shown in FIG. Figure 7 Indicated by the curved linear arrow in the middle);

[0024] Figure 8 It is a partial right view of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully closed state, and the position of the central axis of the second crank arm when the gate is fully closed, partially opened at 30 degrees, partially opened at 60 degrees, and fully opened);

[0025] Fig. 9 In the first embodiment of the present application, Figure 1 A partial enlarged view in the D direction (the second pawl is omitted);

[0026] Fig.10 This is a right view of the application of the gate crank arm locking device in the first embodiment of the present application (the gate is in a fully closed state, and a partial view of the second crank arm in a fully open state is shown at the same time. The rotation direction of the second crank arm is as shown in FIG. Fig.10 Indicated by the curved linear arrow in the middle);

[0027] Fig.11 This is a control block diagram of the gate arm locking device in the first embodiment of the present application.

[0028] Wherein, the reference numerals are:

[0029] 100 Basics

[0030] 101 First Lever

[0031] 102 First Pawl

[0032] 1020 First Hook

[0033] 103 First Ratchet

[0034] 1030 First tooth

[0035] 1031 The first ontology

[0036] 104 First telescopic component

[0037] 1040 First Liquid Cylinder

[0038] 1041 First Support Platform

[0039] 105 Gate

[0040] 106 Left opening and closing cylinder

[0041] 107 Right opening and closing cylinder

[0042] 108 First fixed axis

[0043] 109 Second crutches

[0044] 110 Second pawl

[0045] 1100 Second hook

[0046] 111 Second ratchet

[0047] 1110 Second tooth

[0048] 1111 Second Body

[0049] 112 Second telescopic component

[0050] 1120 Second hydraulic cylinder

[0051] 1121 Second Support Platform

[0052] 113 Second fixed axis

[0053] 114 Controller

[0054] 115 bottom shaft DETAILED DESCRIPTION

[0055] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0056] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. In order to enable those skilled in the art to better understand the present application scheme, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of the present application.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] For the convenience of explanation, a rectangular coordinate system O-XYZ is established in some drawings. The X axis is parallel to the length direction of the base 100, the Y axis is parallel to the width direction of the base 100, and the Z axis is parallel to the height direction of the base 100. The positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis remain the same in each drawing with a coordinate system.

[0060] First embodiment

[0061] Please also refer to Figure 1 and Figure 2 In this embodiment, a gate crank arm locking device is provided, including a base 100, a first crank arm 101, a first pawl 102, a first ratchet 103 and a first telescopic assembly 104. The first crank arm 101 is movably connected to the base 100. The first pawl 102 is movably connected to the base 100, and the first pawl 102 is tilted. The first ratchet 103 is fixedly connected to the first crank arm 101, and the first ratchet 103 rotates with the first crank arm 101. The first telescopic assembly 104 is movably connected to the base 100 and the first pawl 102, and the first telescopic assembly 104 is used to drive the first pawl 102 to hook the first ratchet 103.

[0062] like Figure 2 As shown, since the first telescopic component 104 can drive the first pawl 102 to hook the first ratchet 103, and the first pawl 102 is tilted, it is not easy to bend the first pawl 102 when the first ratchet 103 presses against the first pawl 102 (because after the first pawl 102 is tilted, the torque of the force of the first ratchet 103 pressing against the first pawl 102 to the connection point between the first telescopic component 104 and the first pawl 102 is smaller, and compared with the vertical setting of the first pawl 102, the former is less likely to bend the first pawl 102), thereby making it more difficult for the first pawl 102 to fail due to being bent.

[0063] Please also refer to Figure 1 and Figure 2The foundation 100 may be a concrete structure of a hoist room. The first crank arm 101 may be a left crank arm. The first ratchet 103 may be fixedly connected to the first crank arm 101 by a coupling or welding. For example, the first ratchet 103 may be fixedly connected to the first crank arm 101 by a sleeve sleeved on the left side of the bottom shaft 115. The first crank arm 101 may rotate around the left side of the bottom shaft 115. The first ratchet 103 may be sleeved on the left side of the bottom shaft 115. The first ratchet 103 may be coaxially arranged with the bottom shaft 115.

[0064] like Figure 1 As shown, the first crank arm 101 can be pivotally connected to the left portion of the bottom plate of the foundation 100 , and the second crank arm 109 can be pivotally connected to the right portion of the bottom plate of the foundation 100 .

[0065] like Figure 1 As shown, for example, the bottom of the first crank arm 101 can be pivoted to the left side of the bottom plate of the hoist room, and the bottom of the second crank arm 109 can be pivoted to the right side of the bottom plate of the hoist room. When the gate 105 is opened or closed in a direction approximately parallel to the Z axis, the first crank arm 101 and the second crank arm 109 can rotate synchronously, that is, the predetermined rotation angles of the first crank arm 101 and the second crank arm 109 can be the same. The first crank arm 101 and the second crank arm 109 can be coaxially arranged.

[0066] like Figure 2 As shown, the starting end of the first pawl 102 can be connected to the base 100 (the base 100 is shown in FIG. Figure 1 ) is pivotally connected. The end of the first pawl 102 may include a first hook 1020 to hook the first ratchet 103. The first ratchet 103 may be connected to the first crank arm 101 by screwing, riveting or welding. The first ratchet 103 may be fixedly connected to the bottom of the first crank arm 101. The first telescopic assembly 104 may be pivotally connected to the base 100. The right end of the first telescopic assembly 104 may be pivotally connected to the middle of the first pawl 102.

[0067] Please also refer to Figure 2 to Figure 3 Optionally, the gate arm locking device further comprises a first fixed shaft 108, the first fixed shaft 108 is fixed to the base 100, the first ratchet 102 is sleeved on the first fixed shaft 108 and is rotatable relative to the first fixed shaft 108, and the first telescopic assembly 104 is located between the first fixed shaft 108 and the first ratchet 103. In this way, the first telescopic assembly 104 can be installed in the space between the first fixed shaft 108 and the first ratchet 103, so that the entire gate arm locking device has a more compact structure.

[0068] Please also refer to Figure 1 and Figure 3, the central axis of the first fixed axis 108 can be parallel to the Y axis. The left end of the first fixed axis 108 can be embedded in the left part of the foundation 100 (for example, embedded in the left bank wall of the hoist room). The first fixed axis 108 can be fixed to the foundation 100 by screwing (for example, expansion bolts), or can be partially cast in the foundation 100.

[0069] like Figure 2 As shown, the starting end of the first pawl 102 can be sleeved on the first fixed shaft 108 and can rotate relative to the first fixed shaft 108. The first pawl 102 can be pivotally connected to the middle position of the first fixed shaft 108 in the length direction.

[0070] Please also refer to Figure 1 and Figure 2 Optionally, the first ratchet 103 includes a plurality of first teeth 1030, each of which is connected in sequence, each of which corresponds to a predetermined rotation angle of the first crank arm 101, and the first pawl 102 is used to hook each of the first teeth 1030. This arrangement allows the first pawl 102 to have multiple locking angles to meet the different opening requirements of the gate 105. The different openings of the gate 105 correspond to the different predetermined rotation angles of the first crank arm 101. Moreover, the plurality of first teeth 1030 are not fully distributed in the first body 1031, which saves the material required for making the first teeth 1030.

[0071] like Figure 2 As shown, the first tooth portion 1030 can be a triangular prism with an arc surface. The shape and size of each first tooth portion 1030 can be the same. The width of the first tooth portion 1030 can be the same as the width of the first pawl 102 so as to increase the contact area between the first tooth portion 1030 and the first pawl 102. The width of the first tooth portion 1030 can be greater than the thickness of the first crank arm 101 (the thickness direction of the first crank arm 101 is parallel to the Y axis). The first body 1031 can be cylindrical, and each first tooth portion 1030 is higher than the first body 1031. The first body 1031 can be connected to each first tooth portion 1030 by welding or integral molding.

[0072] like Figure 2 As shown, each first tooth portion 1030 can be hooked with the first hook portion 1020. The number of the first tooth portions 1030 can be four. The four first tooth portions 1030 correspond to different predetermined rotation angles of the first crank arm 101. Let the plane passing through the central axis of the first ratchet 103 and parallel to YOZ be plane A. When the angle between the central axis of the first crank arm 101 and plane A is 45 degrees and the central axis of the first crank arm 101 is located on the left side of plane A, the first first tooth portion 1030 from the right is hooked with the first pawl 102, and the gate 105 is in a fully closed state. At this time, the predetermined rotation angle of the first crank arm 101 is 0 degrees.

[0073] like Figure 4 As shown, when the central axis of the first crank arm 101 and the plane A have an angle of 15 degrees and the central axis of the first crank arm 101 is located on the left side of the plane A, the second first tooth portion 1030 from the right is hooked with the first pawl 102, and the gate 105 (please refer to Figure 1 ) is 30 degrees. At this time, the predetermined rotation angle of the first crank arm 101 is 30 degrees.

[0074] like Figure 5 As shown, when the central axis of the first crank arm 101 and the plane A have an angle of 15 degrees and the central axis of the first crank arm 101 is located on the right side of the plane A, the third first tooth portion 1030 from the right is hooked with the first pawl 102, and the gate 105 (please refer to Figure 1 ) is 60 degrees. At this time, the predetermined rotation angle of the first crank arm 101 is 60 degrees.

[0075] like Figure 6 As shown, when the central axis of the first crank arm 101 and the plane A form an angle of 45 degrees and the central axis of the first crank arm 101 is located on the right side of the plane A, the fourth first tooth portion 1030 from the right is hooked with the first pawl 102, and the gate 105 (please refer to Figure 1 ) is fully open. At this time, the predetermined rotation angle of the first crank arm 101 is 90 degrees. The predetermined rotation angle signal of the first crank arm 101 can come from controlling the left opening and closing cylinder 106 (please refer to the left opening and closing cylinder 106 Figure 7 ) telescopic control system.

[0076] Please also refer to Figure 2 and Figure 3 Optionally, the first telescopic assembly 104 includes a first hydraulic cylinder 1040 and a first support platform 1041, the first hydraulic cylinder 1040 and the first support platform 1041 are pivotally connected, the first hydraulic cylinder 1040 and the first ratchet 102 are pivotally connected, the first support platform 1041 is fixed to the base 100, the first support platform 1041 and the first ratchet 103 are spaced apart, and the first hydraulic cylinder 1040 and the base 100 are spaced apart. This arrangement can prevent the first ratchet 102 from contacting and scratching the base 100 when rotating.

[0077] Please also refer to Figure 2 and Figure 3, the middle part of the cylinder body of the first liquid cylinder 1040 can be pivotally connected to the end of the first support platform 1041. The end of the first support platform 1041 can stop above the middle position of the width direction of the first ratchet 103. The central axis of the pivot that pivots the first liquid cylinder 1040 and the first support platform 1041 can be parallel to the length direction of the first support platform 1041. When the first pawl 102 is hooked to the first ratchet 103, the first liquid cylinder 1040 can be in a locked state (for example, the locking of the first liquid cylinder 1040 is achieved by connecting to a locking circuit), thereby maintaining the locking of the first pawl 102 by the first liquid cylinder 1040.

[0078] like Figure 2 As shown, the right end of the piston rod of the first hydraulic cylinder 1040 can be pivotally connected to the middle of the first pawl 102 to reduce the torque of the first ratchet 103 on the first pawl 102 at the middle pivot of the first pawl 102. When the piston rod of the first hydraulic cylinder 1040 is extended or retracted, it can drive the first pawl 102 to rotate around the first fixed axis 108, thereby locking or unlocking the first ratchet 103.

[0079] like Figure 2 As shown, for example, when the first pawl 102 rotates clockwise around the first fixed axis 108, the first ratchet 103 can be locked, and when the first pawl 102 rotates counterclockwise around the first fixed axis 108, the first ratchet 103 can be unlocked. The first support platform 1041 can be in a rectangular parallelepiped shape. The length direction of the first support platform 1041 can be parallel to the Y axis.

[0080] like Figure 3 As shown, the starting end of the first support platform 1041 can be cast on the left bank wall of the hoist room. The first support platform 1041 can be located above the first ratchet 103 and below the first fixed axis 108. The central axis of the first hydraulic cylinder 1040 can be parallel to the XOZ plane. The distance from the first support platform 1041 to the top of the first ratchet 103 is preferably to avoid contact between the first hydraulic cylinder 1040 and the first ratchet 103 when the first hydraulic cylinder 1040 rotates.

[0081] Please also refer to Figure 1 and Figure 8 Optionally, the gate crank arm locking device further includes a second crank arm 109, a second pawl 110, a second ratchet 111 and a second telescopic assembly 112. The second crank arm 109 is movably connected to the base 100. The second pawl 110 is movably connected to the base 100, and the second pawl 110 is tilted. The second ratchet 111 is fixedly connected to the second crank arm 109, and the second ratchet 111 rotates with the second crank arm 109. The second telescopic assembly 112 is movably connected to the base 100 and the second pawl 110, and the second telescopic assembly 112 is used to drive the second pawl 110 to hook the second ratchet 111.

[0082] Please also refer to Figure 1 and Figure 8 , such a configuration allows the second crank arm 109 to be locked, thereby increasing the reliability of the gate 105 being locked. And because the second telescopic assembly 112 can drive the second pawl 110 to hook the second ratchet 111, and the second pawl 110 is tilted, it is not easy to bend the second pawl 110 when the second ratchet 111 abuts against the second pawl 110 (because after the second pawl 110 is tilted, the torque of the force of the second ratchet 111 abutting against the second pawl 110 to the connection point between the second telescopic assembly 112 and the second pawl 110 is small, and compared with the second pawl 110 being vertically arranged, the former is less likely to bend the second pawl 110), thereby making it more difficult for the second pawl 110 to fail due to being bent.

[0083] Please also refer to Figure 1 and Figure 8 , the second crank arm 109 can be a right crank arm. The second ratchet 111 can be fixedly connected to the second crank arm 109 by a coupling or welding. For example, the second ratchet 111 can be fixedly connected to the second crank arm 109 by a sleeve sleeved on the right side of the bottom shaft 115. The second crank arm 109 can rotate around the right side of the bottom shaft 115. The second ratchet 111 can be sleeved on the right side of the bottom shaft 115. The second ratchet 111 can be coaxially arranged with the bottom shaft 115. The starting end of the second pawl 110 can be pivotally connected to the base 100. The end of the second pawl 110 can include a second hook 1100 to hook the second ratchet 111.

[0084] like Figure 8 As shown, the second ratchet 111 can be connected to the second crank arm 109 by screwing, riveting or welding. The second ratchet 111 can be fixedly connected to the bottom of the second crank arm 109. The second telescopic assembly 112 can be pivotally connected to the base 100 (refer to the base 100 for details). Figure 1 ). The left end of the second telescopic component 112 can be pivotally connected to the middle of the second pawl 110.

[0085] Please also refer to Figure 2 and Figure 8 , the second ratchet 111 and the first ratchet 103 can be coaxially arranged. The second pawl 110 can be coaxially arranged with the first pawl 102. The first telescopic assembly 104 and the second telescopic assembly 112 can be pneumatic, hydraulic or electric telescopic assemblies. The specifications (material, model and size, etc.) of the first telescopic assembly 104 and the second telescopic assembly 112 can be the same. The second pawl 110 can have the same shape and size as the first pawl 102.

[0086] Please also refer to Figure 2 and Figure 8 The second ratchet 111 and the first ratchet 103 may have the same shape and size. Figure 1) and parallel to the XOZ plane is plane B (Plane B, please refer to Figure 1 , the same below), the first telescopic assembly 104 and the second telescopic assembly 112 can be symmetrically arranged about plane B. The second pawl 110 and the first pawl 102 can be symmetrically arranged about plane B. The second ratchet 111 and the first ratchet 103 can be symmetrically arranged about plane B.

[0087] Please also refer to Figure 8 and Fig. 9 Optionally, the gate arm locking device further comprises a second fixed shaft 113, the second fixed shaft 113 is fixed to the base 100, the second ratchet 110 is sleeved on the second fixed shaft 113 and is rotatable relative to the second fixed shaft 113, and the second telescopic assembly 112 is located between the second fixed shaft 113 and the second ratchet 111. In this way, the second telescopic assembly 112 can be installed in the space between the second fixed shaft 113 and the second ratchet 111, so that the entire gate arm locking device has a more compact structure.

[0088] like Fig. 9 As shown, the central axis of the second fixed axis 113 can be parallel to the Y axis. Figure 3 ) can be coaxially arranged. The right end of the second fixed axis 113 can be embedded in the right part of the foundation 100 (for example, embedded in the right bank wall of the hoist room). The second fixed axis 113 can be fixed to the foundation 100 by screwing (for example, expansion bolts), or can be partially cast in the foundation 100.

[0089] like Figure 8 As shown, the starting end of the second pawl 110 can be sleeved on the second fixed shaft 113 and can rotate relative to the second fixed shaft 113. The second pawl 110 can be pivotally connected to the middle position of the second fixed shaft 113 in the length direction.

[0090] like Figure 8 As shown, optionally, the second ratchet 111 includes a plurality of second teeth 1110, each of which is connected in sequence, each of which corresponds to a predetermined rotation angle of the second crank arm 109, and the second pawl 110 is used to hook each of the second teeth 1110. This arrangement allows the second pawl 110 to have multiple locking angles to meet the gate 105 (please refer to the gate 105 Figure 1 , the same below) different openings. The different openings of the gate 105 correspond to different predetermined rotation angles of the second turning arm 109. In addition, the plurality of second tooth portions 1110 are not fully distributed in the second body 1111, which saves the material required for making the second tooth portions 1110.

[0091] like Figure 8As shown, the second tooth portion 1110 may be a triangular prism with an arc surface. Each second tooth portion 1110 and each first tooth portion 1030 (please refer to the first tooth portion 1030) Figure 3 ) can be the same in shape and size. The width of the second tooth portion 1110 can be the same as the width of the second pawl 110 so as to increase the contact area between the second tooth portion 1110 and the second pawl 110. The width of the second tooth portion 1110 can be greater than the thickness of the second crank arm 109 (the thickness direction of the second crank arm 109 can be parallel to the Y axis). The second body 1111 can be cylindrical. Each second tooth portion 1110 is higher than the second body 1111. The second body 1111 can be connected to each second tooth portion 1110 by welding or integral molding.

[0092] like Figure 8 As shown, each second tooth portion 1110 can be hooked by the second hook portion 1100. The number of the second tooth portions 1110 can be four. The four second tooth portions 1110 correspond to different predetermined rotation angles of the second crank arm 109. Let the plane passing through the central axis of the second ratchet 111 and parallel to the YOZ be plane A. When the angle between the central axis of the second crank arm 109 and plane A is 45 degrees and the central axis of the second crank arm 109 is located on the right side of plane A (at this time, the central axis of the second crank arm 109 is Figure 8 The first central axis from the right in the middle), at this time, the first second tooth portion 1110 from the left is hooked with the second pawl 110, and at this time the gate 105 (gate 105, please refer to Figure 1 ) is in the fully closed state. At this time, the predetermined rotation angle of the second crank arm 109 is 0 degree.

[0093] like Figure 8 As shown, when the included angle between the central axis of the second crank arm 109 and the plane A is 15 degrees and the central axis of the second crank arm 109 is located on the right side of the plane A (at this time, the central axis of the second crank arm 109 is Figure 8 The second central axis from the right in the middle), at this time, the second second tooth portion 1110 from the left is hooked with the second pawl 110, and at this time the gate 105 (please refer to the gate 105 Figure 1 ) is 30 degrees. At this moment, the predetermined rotation angle of the second crank arm 109 is 30 degrees.

[0094] like Figure 8 As shown, the included angle between the central axis of the second crank arm 109 and the plane A is 15 degrees and the central axis of the second crank arm 109 is located on the left side of the plane A (at this time, the central axis of the second crank arm 109 is Figure 8 The third central axis from the right in the middle), at this time, the third second tooth portion 1110 from the left is hooked with the second pawl 110, and at this time the gate 105 (please refer to the gate 105 Figure 1 ) is 60 degrees. At this moment, the predetermined rotation angle of the second crank arm 109 is 60 degrees.

[0095] like Figure 8 As shown, when the included angle between the central axis of the second crank arm 109 and the plane A is 45 degrees and the central axis of the second crank arm 109 is located on the left side of the plane A (at this time, the central axis of the second crank arm 109 is Figure 8 The fourth central axis from the right in the middle), at this time, the fourth second tooth portion 1110 from the left is hooked with the second pawl 110, and at this time the gate 105 (please refer to the gate 105 Figure 1 ) is fully open. At this time, the predetermined rotation angle of the second crank arm 109 is 90 degrees. The predetermined rotation angle signal of the second crank arm 109 can come from controlling the right opening and closing cylinder 107 (please refer to the right opening and closing cylinder 107 Fig.10 ) telescopic control system.

[0096] Please also refer to Figure 8 and Fig. 9 Optionally, the second telescopic assembly 112 includes a second cylinder 1120 and a second support platform 1121, the second cylinder 1120 and the second support platform 1121 are pivotally connected, the second cylinder 1120 and the second pawl 110 are pivotally connected, the second support platform 1121 is fixed to the base 100, the second support platform 1121 and the second ratchet 111 are spaced apart, and the second cylinder 1120 and the base 100 are spaced apart. This arrangement can prevent the second pawl 110 from contacting and scratching the base 100 when rotating.

[0097] Please also refer to Figure 2 and Figure 8 The first ratchet 103, the first fixed shaft 108, the first pawl 102, the second ratchet 111, the second fixed shaft 113 and the second pawl 110 may be made of steel (eg, No. 45 steel). The first support platform 1041 and the second support platform 1121 may be reinforced concrete structures.

[0098] Please also refer to Figure 8 and Fig. 9 , the middle part of the cylinder body of the second liquid cylinder 1120 can be pivotally connected to the end of the second support platform 1121. The end of the second support platform 1121 can stop above the middle position of the width direction of the second ratchet 111. The central axis of the pivot that pivots the second liquid cylinder 1120 and the second support platform 1121 can be parallel to the length direction of the second support platform 1121. When the second pawl 110 is hooked to the second ratchet 111, the second liquid cylinder 1120 can be in a locked state (for example, the locking of the second liquid cylinder 1120 is achieved by connecting to a locking circuit), thereby maintaining the locking of the second pawl 110 by the second liquid cylinder 1120.

[0099] like Figure 8As shown, the left end of the piston rod of the second cylinder 1120 can be pivoted to the middle of the second pawl 110 to reduce the moment of the second ratchet 111 on the second pawl 110 at the middle pivot of the second pawl 110. When the piston rod of the second cylinder 1120 is extended or retracted, it can drive the second pawl 110 to rotate around the second fixed axis 113, thereby locking or unlocking the second ratchet 111. The upper surface of the second support platform 1121 and the upper surface of the first support platform 1041 (please refer to 3 for the first support platform 1041) can be coplanar.

[0100] like Figure 8 As shown, for example, when the second pawl 110 rotates counterclockwise around the second fixed axis 113, the second ratchet 111 can be locked, and when the second pawl 110 rotates clockwise around the second fixed axis 113, the second ratchet 111 can be unlocked. The second support platform 1121 can be in a rectangular parallelepiped shape. The length direction of the second support platform 1121 can be parallel to the Y axis.

[0101] like Fig. 9 As shown, the starting end of the second support platform 1121 can be cast on the right bank wall. The second support platform 1121 can be located above the second ratchet 111 and below the second fixed axis 113. The central axis of the second cylinder 1120 can be parallel to the XOZ plane. The distance from the second support platform 1121 to the top of the second ratchet 111 is preferably to avoid contact between the second cylinder 1120 and the second ratchet 111 when the second cylinder 1120 rotates.

[0102] Second embodiment

[0103] Please also refer to Figure 1 and Figure 2 In this embodiment, a gate crank arm locking method is provided, which uses the gate crank arm locking device in the first embodiment, including: when the first crank arm 101 rotates to a predetermined rotation angle, the first telescopic component 104 drives the first pawl 102 to hook on the corresponding first tooth portion 1030. Such a setting allows the first pawl 102 to have multiple locking angles to meet the different opening requirements of the gate 105. Different openings of the gate 105 correspond to different predetermined rotation angles of the first crank arm 101.

[0104] Please also refer to Figure 2 , Figure 7 , Figure 8 and Fig.11 The first telescopic assembly 104, the second telescopic assembly 112, the left opening and closing oil cylinder 106 and the right opening and closing oil cylinder 107 may be electrically connected to the controller 114. The controller 114 may be a control system for the left opening and closing oil cylinder 106 and / or the right opening and closing oil cylinder 107. For example, the controller 114 may be a PLC (Programmable Logic Controller) or an industrial computer.

[0105] Please also refer to Figure 2 and Fig.11 When the controller 114 sends a signal indicating the predetermined angle of rotation of the first crank arm 101 to the first telescopic assembly 104, the first telescopic assembly 104 can drive the first pawl 102 to hook on the corresponding first tooth portion 1030. For example, when the gate 105 is in a fully closed state, the controller 114 can send a signal indicating that the predetermined angle of the first crank arm 101 is 0 degrees to the first telescopic assembly 104, so that the first pawl 102 hooks on the first first tooth portion 1030 from the left.

[0106] Please also refer to Figure 1 and Figure 8 The gate crank arm locking method further includes: when the first crank arm 101 rotates to a predetermined rotation angle and the second crank arm 109 rotates to the same predetermined rotation angle, the second telescopic assembly 112 drives the second pawl 110 to hook the corresponding second tooth portion 1110. This arrangement allows the second pawl 110 to have multiple locking angles to meet the different opening requirements of the gate 105, thereby allowing the second telescopic assembly 112 and the first telescopic assembly 104 to jointly lock the gate 105. Different openings of the gate 105 correspond to different predetermined rotation angles of the second crank arm 109.

[0107] Please also refer to Figure 8 and Fig.11 When the controller 114 sends a predetermined angle signal of the second crank arm 109 to the second telescopic assembly 112, the second telescopic assembly 112 can drive the second pawl 110 to hook on the corresponding second tooth portion 1110. For example, the gate 105 (please refer to the gate 105) Figure 1 ) is in the fully closed state, the controller 114 can send a signal that the predetermined angle of the second crank arm 109 is 0 degrees to the second telescopic component 112, so that the second pawl 110 hooks the first second tooth portion 1110 from the right.

[0108] Please also refer to Figure 1 , Figure 2 and Figure 8When the gate 105 needs to be closed, the first telescopic assembly 104 needs to drive the first pawl 102 to rotate to the unlocked position, and the second telescopic assembly 112 needs to drive the second pawl 110 to rotate to the unlocked position. When the gate 105 is closed to a specified opening (the gate 105 is driven by the left opening and closing oil cylinder 106 and the right opening and closing oil cylinder 107), the first telescopic assembly 104 is controlled to drive the first pawl 102 to rotate to hook the first tooth portion 1030, and the second telescopic assembly 112 is controlled to drive the second pawl 110 to rotate to hook the second tooth portion 1110, so that the corresponding first tooth portion 1030 is locked by the first pawl 102 (the first hydraulic cylinder 1040 is in a locked state at this time), and the corresponding second tooth portion 1110 is locked by the second pawl 110 (the second hydraulic cylinder 1120 is in a locked state at this time).

[0109] Please also refer to Figure 1 , Figure 2 and Figure 8 When the gate 105 needs to be opened, the first telescopic assembly 104 is required to drive the first pawl 102 to rotate to the unlocked position, and the second telescopic assembly 112 is required to drive the second pawl 110 to rotate to the unlocked position. When the gate 105 is opened to a specified opening, the first telescopic assembly 104 is controlled to drive the first pawl 102 to rotate to hook the first tooth portion 1030, and the second telescopic assembly 112 is controlled to drive the second pawl 110 to rotate to hook the second tooth portion 1110, so that the corresponding first tooth portion 1030 is locked by the first pawl 102 (the first cylinder 1040 is in a locked state at this time), and the corresponding second tooth portion 1110 is locked by the second pawl 110 (the second cylinder 1120 is in a locked state at this time).

[0110] The above is a detailed introduction to the gate crank arm locking device and gate crank arm locking method provided by the embodiments of the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there will be some changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation to the present application, and all equivalent modifications or changes made according to the spirit and technical ideas of the present application should still be covered by the claims of the present application.

Claims

1. A gate arm locking device, characterized in that: include: Base; A first crank arm, movably connected to the base; A first pawl, movably connected to the base, wherein the first pawl is tilted; A first ratchet wheel is fixedly connected to the first crank arm, and the first ratchet wheel rotates with the first crank arm; and The first telescopic component is movably connected to the base and the first pawl, and the first telescopic component is used to drive the first pawl to hook the first ratchet wheel.

2. The gate arm locking device according to claim 1, characterized in that: It also includes a first fixed shaft, which is fixed to the base. The first ratchet is sleeved on the first fixed shaft and is rotatable relative to the first fixed shaft. The first telescopic assembly is located between the first fixed shaft and the first ratchet.

3. The gate arm locking device according to claim 1, characterized in that: The first ratchet includes a plurality of first teeth, each of which is connected in sequence, each of which corresponds to a predetermined rotation angle of the first crank arm, and the first pawl is used to hook each of the first teeth.

4. The gate crank arm locking device according to claim 3, characterized in that: The first telescopic assembly includes a first hydraulic cylinder and a first supporting platform, the first hydraulic cylinder and the first supporting platform are pivotally connected, the first hydraulic cylinder and the first pawl are pivotally connected, the first supporting platform is fixed to the base, the first supporting platform and the first ratchet are spaced apart, and the first hydraulic cylinder and the base are spaced apart.

5. The gate crank arm locking device according to claim 1, characterized in that: Also includes: A second crank arm, movably connected to the base; A second pawl, movably connected to the base, the second pawl being arranged obliquely; A second ratchet wheel, which is fixedly connected to the second crank arm, and the second ratchet wheel rotates with the second crank arm; as well as The second telescopic component is movably connected to the base and the second pawl, and the second telescopic component is used to drive the second pawl to hook the second ratchet.

6. The gate crank arm locking device according to claim 5, characterized in that: It also includes a second fixed shaft, which is fixed to the base. The second ratchet is sleeved on the second fixed shaft and is rotatable relative to the second fixed shaft. The second telescopic assembly is located between the second fixed shaft and the second ratchet.

7. The gate crank arm locking device according to claim 5, characterized in that: The second ratchet includes a plurality of second teeth, each of which is connected in sequence, each of which corresponds to a predetermined rotation angle of the second crank arm, and the second pawl is used to hook each of the second teeth.

8. The gate crank arm locking device according to claim 7, characterized in that: The second telescopic assembly includes a second hydraulic cylinder and a second supporting platform, the second hydraulic cylinder and the second supporting platform are pivotally connected, the second hydraulic cylinder and the second pawl are pivotally connected, the second supporting platform is fixed to the base, the second supporting platform and the second ratchet are spaced apart, and the second hydraulic cylinder and the base are spaced apart.

9. A gate crank arm locking method, using the gate crank arm locking device according to claim 3 or 4, characterized in that: include: When the first crank arm rotates to a predetermined rotation angle, the first telescopic assembly drives the first pawl to hook onto the corresponding first tooth portion.

10. A gate crank arm locking method, using the gate crank arm locking device according to claim 7 or 8, characterized in that: include: When the first crank arm rotates to a predetermined rotation angle and the second crank arm rotates to the same predetermined rotation angle, the second telescopic assembly drives the second pawl to hook the corresponding second tooth portion.

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