Pump station handle reversing device

Abstract

The utility model discloses a pump station handle reversing device which comprises a handle assembly and a locking assembly, the handle assembly can be in driving connection with a reversing valve of a jacking hydraulic cylinder, the locking assembly comprises a fixed seat, a first movable block and two first control locks, the fixed seat is fixedly arranged close to the handle assembly, and the first movable block is fixedly arranged close to the handle assembly. The two first control locks are sequentially arranged on the fixing base in the deflection direction of the handle assembly, telescopic lock cylinders of the two first control locks can be arranged in a parallel telescopic mode towards the same end and can define a locking space when the telescopic lock cylinders stretch out, and the first movable block is connected with the handle assembly and arranged in the locking space. The telescopic lock cylinder of the at least one first control lock can limit deflection of the handle assembly in at least one direction when the telescopic lock cylinder of the at least one first control lock stretches out, so that major accidents caused by nonstandard operation of mounting and dismounting workers can be avoided, and prevention and prevention of jacking accidents in the tower ascending or descending process are truly achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tower crane technical field especially relates to a pump station handle reversing device. BACKGROUND

[0002] At present, the tower crane adopts the hydraulic jacking system to drive the climbing mechanism to lift when lifting or lowering the tower, thereby adding or reducing the section. The hydraulic jacking system of the tower crane is mainly composed of a jacking hydraulic cylinder, a hydraulic pump station and an oil pipe, the hydraulic pump station provides the jacking hydraulic cylinder with hydraulic oil of certain pressure and flow, thereby driving the jacking hydraulic cylinder to perform the extension and contraction movement, and further driving the climbing mechanism to lift.

[0003] However, the tower crane is most likely to cause major accidents during the lifting and lowering process. If an accident occurs during the lifting or lowering process, it will generally cause the tower crane to collapse and damage, and the installation and disassembly workers are also injured. Most of the accident causes are due to the non-standard operation of the installation and disassembly workers. For example, the force is unloaded when the jacking cross beam has not been hung on the step, and the oil cylinder starts to push out before the supporting rod is firmly stepped. CONTENT OF THE UTILITY MODEL

[0004] In view of the above defects or deficiencies, the utility model provides a pump station handle reversing device, aiming at solving the technical problem that major accidents are caused by non-standard operation of installation and disassembly workers during the lifting or lowering process.

[0005] In order to achieve the above purpose, the utility model provides a pump station handle reversing device, wherein the pump station handle reversing device comprises a handle assembly and a locking assembly; the handle assembly is drivingly connected with a reversing valve of a jacking hydraulic cylinder; the locking assembly comprises a fixed seat, a first movable block and two first control locks, the fixed seat is fixedly arranged close to the handle assembly, the two first control locks are sequentially arranged on the fixed seat along the yawing direction of the handle assembly, the extension and contraction lock cores of the two first control locks are arranged in parallel towards the same end and can be arranged in the extension and contraction lock cores are all extended, and a locking space is formed, the first movable block is connected with the handle assembly and placed in the locking space, so that the yawing of the handle assembly in at least one direction can be limited when the extension and contraction lock core of at least one first control lock is extended.

[0006] In an embodiment of the utility model, the handle assembly comprises a yawing driving rod, an unlocking module and a reversing handle seat, the yawing driving rod is drivingly connected with the reversing valve of the jacking hydraulic cylinder, the unlocking module comprises a locking piece and an unlocking piece which can be locked or unlocked to the locking piece, the yawing driving rod is sequentially provided with the first movable block and one of the locking piece and the unlocking piece in the direction away from the reversing valve of the jacking hydraulic cylinder, the other of the locking piece and the unlocking piece is arranged on the reversing handle seat, the reversing handle seat is movably arranged and used to drive the yawing driving rod to yaw when the unlocking piece is locked to the locking piece.

[0007] In an embodiment of the utility model, the unlocking piece includes a second control lock, and the telescopic lock cylinder of the second control lock can extend into or retract from the lock opening space formed by the locking piece.

[0008] In an embodiment of the utility model, the locking piece includes two one-way hinges, which are sequentially arranged along the yawing direction of the yawing driving rod, so that the space between the two one-way hinges forms a lock opening space, and the two one-way hinges are arranged to be rotatable inward.

[0009] In an embodiment of the utility model, the yawing driving rod and the two first control locks are arranged on opposite sides of the fixed seat, the fixed seat is sequentially and spaced apart along the length direction of the yawing driving rod, and the first guide opening and the second guide opening, which are arranged in parallel and are both straight strips, are arranged, the first movable block is connected with the yawing driving rod through the first connecting assembly passing through the first guide opening, one of the locking piece and the unlocking piece is connected with the yawing driving rod through the second connecting assembly passing through the second guide opening, and the handle assembly further includes a guide rail, which is arranged in parallel with the first guide opening and can movably arrange the reversing handle seat.

[0010] In an embodiment of the utility model, the handle assembly further includes a second movable block and a mounting plate, the second movable block is arranged on the same side of the two first control locks and is connected with the yawing driving rod through the second connecting assembly, and the mounting plate is arranged on the second movable block and can be used for mounting one of the locking piece and the unlocking piece.

[0011] In an embodiment of the utility model, the first connecting assembly and / or the second connecting assembly each include a mounting sleeve ring and a connecting rod, the mounting sleeve ring is sleeved on the yawing driving rod and has a gap between the mounting sleeve ring and the yawing driving rod, and the connecting rod connects the mounting sleeve ring and the corresponding movable block by passing through the corresponding guide opening.

[0012] In an embodiment of the utility model, the reversing handle seat includes a moving seat and a handle body connected with the moving seat, one end of the moving seat away from the handle body is movably arranged, and the moving seat is formed with a mounting space for mounting the unlocking piece.

[0013] In an embodiment of the utility model, the pump station handle reversing device further includes a shell, the shell forms an inner cavity for accommodating the handle assembly and the locking assembly, and the opposite sides of the shell are respectively and one by one provided with a first outer extension opening and a second outer extension opening, the first outer extension opening can be used for extending the yawing driving rod to be drivingly connected with the reversing valve of the jacking hydraulic cylinder, and the second outer extension opening can be used for extending the reversing handle seat to be manually operated.

[0014] In an embodiment of the utility model, the pump station handle reversing device further includes an alarm, which can alarm the yawing direction of the handle assembly.

[0015] By the technical scheme, the pump station handle reversing device has the following beneficial effects:

[0016] When the pump station handle reversing device is used, the handle assembly can be drivenly connected with the reversing valve of the jacking hydraulic cylinder, the two first control locks of the locking assembly are sequentially arranged along the yawing direction of the handle assembly on the fixed seat, the telescopic lock cores of the two first control locks are arranged in parallel and can be telescopically arranged towards the same end, the locking space is formed when the telescopic lock cores of the two first control locks are telescopically arranged, the first movable block connected with the handle assembly is arranged in the locking space, and thus, during the tower lifting or tower lowering process, if it is determined that the current installation or disassembly action has not been completed and the oil cylinder load needs to be inhibited, the telescopic lock core of the corresponding first control lock can be telescopically arranged to limit the handle assembly from yawing towards the side of the first control lock, and then the handle assembly is limited from driving the reversing valve to switch to the jacking hydraulic cylinder to perform the reversing action of extending; if it is determined that the current installation or disassembly action has not been completed and the oil cylinder unloading needs to be inhibited, the telescopic lock core of the corresponding first control lock can be telescopically arranged to limit the handle assembly from yawing towards the side of the first control lock, and then the handle assembly is limited from driving the reversing valve to switch to the jacking hydraulic cylinder to perform the reversing action of retracting, so that the major accident caused by the non-standard operation of the installation or disassembly worker can be avoided, and the prevention and inhibition of the jacking accident during the tower lifting or tower lowering process can be truly realized.

[0017] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following detailed description to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0019] Figure 1 is a structural schematic view of one of the internal perspectives of the pump station handle reversing device according to an embodiment of the present application;

[0020] Figure 2 is a structural schematic view of another internal perspective of the pump station handle reversing device according to an embodiment of the present application;

[0021] Figure 3 is a structural schematic view of one of the external perspectives of the pump station handle reversing device according to an embodiment of the present application;

[0022] Figure 4 Figure 1 is a structural schematic diagram of the pump station handle reversing device according to an embodiment of the present application.

[0023] Legend

[0024] 100 handle assembly 110 deflection driving rod

[0025] 120 locking piece 121 one-way hinge

[0026] 130 unlocking piece 140 reversing handle seat

[0027] 141 moving seat 142 handle body

[0028] 143 installation space 150 guide rail

[0029] 160 second movable block 170 installation plate

[0030] 200 locking assembly 210 fixed seat

[0031] 211 first guide opening 212 second guide opening

[0032] 213 first connecting assembly 214 second connecting assembly

[0033] 215 installation collar 216 connecting rod

[0034] 220 first movable block 230 first control lock

[0035] 300 housing 301 first outward opening

[0036] 302 second outward opening 400 alarm

[0037] 500 main control circuit board DETAILED DESCRIPTION

[0038] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0039] The pump station handle reversing device of the present application will be described below with reference to the accompanying drawings.

[0040] As shown in Figure 1 and Figure 2 , the present application provides a pump station handle reversing device, wherein the pump station handle reversing device comprises:

[0041] The handle assembly 100 can be drivenly connected with the reversing valve of the jacking hydraulic cylinder.

[0042] The locking assembly 200 comprises a fixed seat 210, a first movable block 220 and two first control locks 230. The fixed seat 210 is fixedly arranged near the handle assembly 100. The two first control locks 230 are sequentially arranged on the fixed seat 210 along the yawing direction of the handle assembly 100. The telescopic lock cores of the two first control locks 230 are arranged in parallel and can be telescopically arranged towards the same end and can form a locking space when the telescopic lock cores are both extended. The first movable block 220 is connected with the handle assembly 100 and is arranged in the locking space, so that the handle assembly 100 can be limited in at least one direction of yawing when the telescopic lock core of at least one first control lock 230 is extended.

[0043] When the handle reversing device of the pump station is used, the handle assembly 100 can be drivingly connected with the reversing valve of the jacking hydraulic cylinder, and the two first control locks 230 of the locking assembly 200 are sequentially arranged on the fixed seat 210 along the yawing direction of the handle assembly 100, and the telescopic lock cores of the two first control locks 230 are arranged in parallel and can be telescopically arranged towards the same end, so that the locking space can be formed when the telescopic lock cores of the two first control locks 230 are both extended. The first movable block 220 connected with the handle assembly 100 is arranged in the locking space, so that during the tower lifting or lowering process, if it is determined that the current installation or disassembly action has not been completed and needs to be prohibited from loading the oil cylinder, the telescopic lock core of the corresponding one first control lock 230 can be controlled to be extended and arranged to limit the handle assembly 100 to yaw towards the side of the first control lock 230, thereby limiting the handle assembly 100 to drive the reversing valve to switch to the jacking hydraulic cylinder to perform the extending reversing action. If it is determined that the current installation or disassembly action has not been completed and needs to be prohibited from unloading the oil cylinder, the telescopic lock core of the corresponding other first control lock 230 can be controlled to be extended and arranged to limit the handle assembly 100 to yaw towards the side of the first control lock 230, thereby limiting the handle assembly 100 to drive the reversing valve to switch to the jacking hydraulic cylinder to perform the retracting reversing action, so that major accidents caused by non-standard operation of the installation and disassembly workers can be avoided, and the prevention and prevention of the jacking accident during the tower lifting or lowering process can be truly realized.

[0044] Specifically, when the lower end of the handle assembly 100 is drivingly connected with the reversing valve of the jacking hydraulic cylinder, the telescopic lock cores of the two first control locks 230 can be arranged to be telescopic downward in parallel, and the first movable block 220 is not only arranged in the empty space formed by the telescopic lock cores of the two first control locks 230 being extended, but also extends to the lower side of the lock body of the two first control locks 230 one by one. In addition, in the case of needing to prohibit the load of the oil cylinder or needing to prohibit the unloading of the oil cylinder, only the telescopic lock core of a corresponding first control lock 230 can be arranged to be extended, and the telescopic lock core of the other first control lock 230 can be arranged to be retracted.

[0045] In an embodiment of the utility model, the handle assembly 100 includes a deflection driving rod 110, an unlocking module and a reversing handle seat 140, the deflection driving rod 110 can be the original handle of the pump station, and is drivingly connected with the reversing valve of the jacking hydraulic cylinder, the unlocking module includes a locking piece 120 and an unlocking piece 130 that can be locked or unlocked to the locking piece 120, the deflection driving rod 110 is sequentially provided with a first movable block 220 and one of the locking piece 120 and the unlocking piece 130 in the direction away from the reversing valve of the jacking hydraulic cylinder, and the other of the locking piece 120 and the unlocking piece 130 is arranged on the reversing handle seat 140, the reversing handle seat 140 is movably arranged and is used to drive the deflection driving rod 110 to deflect when the unlocking piece 130 is locked to the locking piece 120. That is, by adding the reversing handle seat 140 and the unlocking module, the hand driving part can be transferred from the deflection driving rod 110 to the reversing handle seat 140, and after the reversing handle seat 140 establishes the connection with the deflection driving rod 110 through the unlocking module, the hand driving reversing handle seat 140 can drive the deflection driving rod 110 to deflect, and after the reversing handle seat 140 releases the connection with the deflection driving rod 110 through the unlocking module, the hand driving reversing handle seat 140 cannot drive the deflection driving rod 110 to deflect, so that in the case of emergency, the locking of the reversing handle seat 140 to the deflection driving rod 110 can be released by controlling the unlocking piece 130, and even if the installation and dismounting worker drives the reversing handle seat 140, the deflection driving rod 110 cannot be driven to deflect, so that the jacking hydraulic cylinder is completely prohibited from running, and further major accidents caused by the non-standard operation of the installation and dismounting worker are avoided.

[0046] In an embodiment of the utility model, the unlocking piece 130 includes a second control lock, the telescopic lock cylinder of second control lock can extend into or retract from the lock space formed by the locking piece 120. That is, the unlocking piece 130 can be set as a second control lock with a telescopic lock cylinder, the second control lock is consistent with the structure of the first control lock 230, facilitating production and manufacture. Of course, the utility model is not limited to this, other suitable unlocking modules are also possible, for example, the unlocking piece 130 is set as including a buckle arm that can rotate and deflect, the locking piece 120 is formed with a cartridge space for buckling the buckle arm, when the buckle arm rotates and deflects to buckle in the cartridge space, the connection between the reversing handle seat 140 and the deflection driving rod 110 is realized, when the buckle arm rotates and deflects to disengage from the cartridge space, the connection between the reversing handle seat 140 and the deflection driving rod 110 is released.

[0047] In an embodiment of the utility model, the locking piece 120 includes two one-way hinges 121, the two one-way hinges 121 are sequentially arranged along the deflection direction of the deflection driving rod 110, so that the space between the two one-way hinges 121 forms a lock space, and the two one-way hinges 121 are arranged to be rotatable towards the inside. That is, when the telescopic lock cylinder of the second control lock extends into the lock space, since the two one-way hinges 121 cannot rotate towards the outside, the telescopic lock cylinder of the second control lock cannot run out from the inside, which can ensure the stability of the connection between the telescopic lock cylinder of the second control lock and the locking piece 120, at the same time, if the telescopic lock cylinder of the second control lock extends outwards of the one-way hinge 121 under unexpected circumstances, the telescopic lock cylinder of the second control lock can also push the one-way hinge 121 to enter the inside, and the one-way hinge 121 can be reset under the action of the hinge spring itself under the abutment action of the telescopic lock cylinder, so as to realize the locking connection between the locking piece 120 and the second control lock again, which can avoid the phenomenon that the reversing handle seat 140 and the deflection driving rod 110 cannot be transmitted due to misalignment. It needs to be specially pointed out that the inside of the two one-way hinges 121 refers to the side where the two one-way hinges 121 are close to each other, and the outside of the two one-way hinges 121 refers to the side where the two one-way hinges 121 are away from each other.

[0048] In an embodiment of the utility model, the deflection driving rod 110 and two first control locks 230 are separately arranged on opposite sides of the fixed seat 210, the fixed seat 210 is sequentially and spaced apart along the length direction of the deflection driving rod 110 and is provided with the first guide opening 211 and the second guide opening 212 which are arranged in parallel and are both straight strip shapes, the first movable block 220 is connected with the deflection driving rod 110 through the first connecting assembly 213 passing through the first guide opening 211, one of the locking part 120 and the unlocking part 130 is connected with the deflection driving rod 110 through the second connecting assembly 214 passing through the second guide opening 212, and the handle assembly 100 further comprises a guide rail 150, the guide rail 150 is arranged in parallel with the first guide opening 211 and can movably arrange the reversing handle seat 140. That is, through the arrangement of the first guide opening 211 and the second guide opening 212, the translational motion of the first movable block 220 and one of the locking part 120 and the unlocking part 130 can be realized, at the same time, the reversing handle seat 140 is movably arranged on the guide rail 150 arranged in parallel with the first guide opening 211, so that the deflection motion of the deflection driving rod 110 can be converted into the translational motion of the reversing handle seat 140, and then the locking operation of the unlocking module is facilitated, and the design and manufacture of the subsequent shell 300 are also more simple. Of course, the utility model is not limited to this, and the reversing handle seat 140 can also be arranged to be deflectable and movable.

[0049] In an embodiment of the utility model, the handle assembly 100 further comprises a second movable block 160 and a mounting plate 170, the second movable block 160 is arranged on the same side with the two first control locks 230 and is connected with the deflection driving rod 110 through the second connecting assembly 214, and the mounting plate 170 is arranged on the second movable block 160 and can install one of the locking part 120 and the unlocking part 130. Through the addition of the second movable block 160, the second movable block 160 can be translational with the fixed seat 210, so as to ensure the stability of the translational motion, and the addition of the mounting plate 170 can facilitate the installation of one of the locking part 120 and the unlocking part 130 and achieve the purposes of weight reduction and cost reduction. Specifically, the thickness dimension of the first movable block 220 is greater than the opening width dimension of the first guide opening 211, and the thickness dimension of the second movable block 160 is greater than the opening width dimension of the second guide opening 212, so that the second movable block 160 and the mounting plate 170 cannot be separated from the fixed seat 210, the mounting plate 170 comprises a first plate part and a second plate part, the first plate part is arranged on the side of the second movable block 160 facing the first control lock 230, the second plate part is arranged in a downwardly bent and extended manner from the end of the first plate part away from the fixed seat 210, and the locking part 120 is arranged on the side of the second plate part away from the fixed seat 210.

[0050] Please refer to Figure 1 and Figure 2In an embodiment of the utility model, first connecting assembly 213 and / or second connecting assembly 214 all include mounting collar 215 and connecting rod 216, mounting collar 215 is set on the eccentric driving rod 110 and there is gap between eccentric driving rod 110, connecting rod 216 passes through the corresponding guide opening and connects mounting collar 215 and the corresponding movable block. Through the setting of mounting collar 215, second connecting assembly 214 can smoothly convert the translation driving of reversing handle seat 140 into the eccentric motion of eccentric driving rod 110, and first connecting assembly 213 can smoothly convert the eccentric motion of eccentric driving rod 110 into the translation motion of first movable block 220. Specifically, mounting collar 215 includes two split sets, and the two split sets are detachably connected to the end portions of the eccentric driving rod 110 on opposite sides and are arranged in the same direction.

[0051] In an embodiment of the utility model, reversing handle seat 140 includes moving seat 141 and handle body 142 connected with moving seat 141, and the end of moving seat 141 away from handle body 142 is movably arranged. An installation space 143 is formed on moving seat 141 for mounting unlocking piece 130. The addition of moving seat 141 enables reversing handle seat 140 to be movably arranged and facilitates the installation of unlocking piece 130. Specifically, moving seat 141 can be built by a bottom plate, a top plate, and side plates. The outer side of the bottom plate is provided with a sliding block portion in sliding fit connection with guide rail 150. The outer side of the top plate is connected with handle body 142. Unlocking piece 130 is arranged in the installation space 143 between the bottom plate and the top plate, and the telescopic lock cylinder of unlocking piece 130 can be arranged to protrude from the installation space 143.

[0052] Referring to Figures 1 to 4 In an embodiment of the utility model, the pump station handle reversing device further includes a housing 300. The housing 300 encloses an inner cavity in which handle assembly 100 and locking assembly 200 are accommodated. First outer extension opening 301 and second outer extension opening 302 are respectively and correspondingly formed on opposite sides of the housing 300. First outer extension opening 301 is used for the extension of eccentric driving rod 110 to be driven in connection with the reversing valve of the jacking hydraulic cylinder. Second outer extension opening 302 is used for the extension of reversing handle seat 140 for manual operation. The addition of housing 300 can protect handle assembly 100 and locking assembly 200 and limit the installation and disassembly workers to only operate reversing handle seat 140. Specifically, fixed seat 210 and guide rail 150 are spaced apart on the inner wall of housing 300.

[0053] In the embodiment of the utility model, pump station handle reversing device still includes alarm 400, alarm 400 can make alarm prompt to the limited direction of handle assembly 100. The addition of alarm 400 makes the current limited deflection direction of handle assembly 100 can be reminded to the worker of installation and disassembly. Specifically, alarm 400 and main control circuit board 500 can be arranged in the inner chamber of shell 300, main control circuit board 500 can be in communication connection with first control lock 230 and unlocking piece 130, main control circuit board 500 can determine the deflection direction of handle assembly 100 and control first control lock 230 and unlocking piece 130 and control alarm 400 according to the deflection direction of handle assembly 100, the determination of the deflection direction of handle assembly 100 by main control circuit board 500 can be receiving manual instruction or obtaining through monitoring device, and monitoring device can judge whether the current installation and disassembly action is completed and the jacking hydraulic cylinder is in which kind of prohibited action condition.

[0054] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0056] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the characteristics of different embodiments or examples without contradiction.

[0057] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A pump station handle reversing device, characterized in that, The pump station handle reversing device includes: The handle assembly (100) can be connected to the directional valve drive of the lifting hydraulic cylinder; The locking assembly (200) includes a fixed base (210), a first movable block (220), and two first control locks (230). The fixed base (210) is fixedly disposed near the handle assembly (100). The two first control locks (230) are arranged sequentially on the fixed base (210) along the deflection direction of the handle assembly (100). The telescopic lock cylinders of the two first control locks (230) can be telescopically extended and retracted in parallel toward the same end, and can form a locking space when both telescopic lock cylinders are extended. The first movable block (220) is connected to the handle assembly (100) and placed in the locking space, so that when the telescopic lock cylinder of at least one of the first control locks (230) is extended, the deflection of the handle assembly (100) in at least one direction can be restricted.

2. The pump station handle reversing device according to claim 1, characterized in that, The handle assembly (100) includes a yaw drive rod (110), an unlocking module, and a reversing handle seat (140). The yaw drive rod (110) is driven to the reversing valve of the lifting hydraulic cylinder. The unlocking module includes a locking member (120) and an unlocking member (130) that can lock or unlock the locking member (120). The yaw drive rod (110) is provided with a first movable block (220) and one of the locking member (120) and the unlocking member (130) in sequence in the direction away from the reversing valve of the lifting hydraulic cylinder. The other of the locking member (120) and the unlocking member (130) is provided on the reversing handle seat (140). The reversing handle seat (140) is movably configured and used to drive the yaw drive rod (110) to yaw when the unlocking member (130) is locked to the locking member (120).

3. The pump station handle reversing device according to claim 2, characterized in that, The unlocking member (130) includes a second control lock, the telescopic lock cylinder of which can extend into or retract out of the lock space formed by the locking member (120).

4. The pump station handle reversing device according to claim 3, characterized in that, The locking member (120) includes two one-way hinges (121), which are arranged sequentially along the deflection direction of the deflection drive rod (110) so that the gap between the two one-way hinges (121) forms the locking space, and the two one-way hinges (121) are designed to rotate inward.

5. The pump station handle reversing device according to claim 2, characterized in that, The yaw drive rod (110) and the two first control locks (230) are respectively disposed on opposite sides of the fixed base (210). The fixed base (210) has a first guide opening (211) and a second guide opening (212) arranged in parallel and both in the shape of straight strips along the length direction of the yaw drive rod (110). The first movable block (220) is connected to the yaw drive rod (110) through a first connecting component (213) passing through the first guide opening (211). One of the locking member (120) and the unlocking member (130) is connected to the yaw drive rod (110) through a second connecting component (214) passing through the second guide opening (212). The handle assembly (100) also includes a guide rail (150). The guide rail (150) is arranged parallel to the first guide opening (211) and allows the reversing handle seat (140) to be movably disposed.

6. The pump station handle reversing device according to claim 5, characterized in that, The handle assembly (100) further includes a second movable block (160) and a mounting plate (170). The second movable block (160) is disposed on the same side as the two first control locks (230) and is connected to the yaw drive rod (110) via the second connecting assembly (214). The mounting plate (170) is disposed on the second movable block (160) and can be installed on one of the locking member (120) and the unlocking member (130).

7. The pump station handle reversing device according to claim 6, characterized in that, The first connecting assembly (213) and / or the second connecting assembly (214) both include a mounting collar (215) and a connecting rod (216). The mounting collar (215) is sleeved on the yaw drive rod (110) and there is a gap between it and the yaw drive rod (110). The connecting rod (216) passes through a corresponding guide opening and connects the mounting collar (215) and the corresponding movable block.

8. The pump station handle reversing device according to claim 2, characterized in that, The reversing handle base (140) includes a movable base (141) and a handle body (142) connected to the movable base (141). The movable base (141) is movably disposed at one end away from the handle body (142), and an installation space (143) is formed on the movable base (141) for the installation of the unlocking member (130).

9. The pump station handle reversing device according to claim 2, characterized in that, The pump station handle reversing device also includes a housing (300), which encloses an inner cavity for accommodating the handle assembly (100) and the locking assembly (200). The housing (300) has a first extension opening (301) and a second extension opening (302) respectively on opposite sides. The first extension opening (301) allows the yaw drive rod (110) to extend and connect with the reversing valve of the lifting hydraulic cylinder. The second extension opening (302) allows the reversing handle seat (140) to extend for manual operation.

10. The pump station handle reversing device according to any one of claims 1 to 9, characterized in that, The pump station handle reversing device also includes an alarm (400), which can provide an alarm prompt for the limited sway direction of the handle assembly (100).

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