Ultra-large load hydraulic cargo elevator

Abstract

The invention relates to the technical field of hydraulic cargo elevators, in particular to an ultra-large load hydraulic cargo elevator. Comprising a platform frame, and the platform frame comprises a bottom supporting plate and a bearing plate connected to the upper portion of the bottom supporting plate in a threaded mode; side stop blocks are welded to the left and right sides of the top end of the bottom supporting plate; a rear stop block is welded to the rear side of the top end of the bottom supporting plate; the platform frame integrally forms an assembled stable structure, so that the gravity can be dispersed on the two sides when the middle of the platform frame is stressed, the whole platform frame jointly bears external stress, and the problems of middle sinking, breakage and the like caused by concentrated stress in the middle can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic freight elevators, and in particular to an extra-large load hydraulic freight elevator. Background Art

[0002] The super-large load hydraulic freight elevator is a lifting equipment specially designed for carrying heavy objects. It has the advantages of strong load-bearing capacity, good stability and high safety performance. It is widely used in warehouses, factories, logistics centers and other places. The super-large load hydraulic freight elevator is mainly composed of guide rail system, platform frame, hydraulic system, drive system, control system, ground support structure and safety device. The specific working process is as follows: the operator selects the target floor through the operation panel and presses the start button. After receiving the command, the control system starts the motor, and the motor drives the oil pump of the hydraulic system to operate, sucking the hydraulic oil in the tank into the oil pump. The oil pump pressurizes the hydraulic oil and transmits it to the cylinder through the hydraulic pipeline. The high-pressure hydraulic oil enters the cylinder, pushing the piston to move upward. The rise of the piston drives the platform frame to rise, so that the freight elevator rises smoothly along the guide rail system. When the freight elevator approaches the target floor, the control system detects the position through the sensor. After reaching the target floor, the control system stops the motor and the oil pump, the oil in the cylinder stops flowing, and the platform frame stops rising; the safety door interlocking mechanism of the safety device ensures that the door can only be opened after the platform frame stops completely. After the goods are unloaded from the platform frame, the operator closes the door and selects a new target floor or returns to the original floor. After receiving the descending command, the control system opens the return valve of the cylinder, and the high-pressure oil in the cylinder flows back to the tank, and the piston slowly descends under the action of gravity; the platform frame descends smoothly along the guide rail system until it reaches the target floor.

[0003] During the entire process, various safety devices such as overload protection, speed limiting device, anti-fall device, etc. continuously monitor the status of the freight elevator to ensure safety. If any abnormal situation occurs, the safety device will be activated immediately, stopping the freight elevator and sounding an alarm; from the above principle, it can be seen that the main load of the oversized load hydraulic freight elevator is on the platform frame, and the load-bearing performance of the platform frame itself is also very important. Since the hydraulic system hydraulic pressure of the hydraulic freight elevator acts on both ends of the platform frame, if the platform frame’s own strength is insufficient, there is a risk of depression or fracture in the middle of the platform frame when placing oversized load cargo, resulting in the overall scrapping of the platform frame, increasing subsequent maintenance costs or replacement costs. Summary of the invention

[0004] The present invention provides an ultra-large load hydraulic freight elevator to solve the problem of insufficient strength of the related technology.

[0005] The present invention provides an extra-large load hydraulic freight elevator, comprising a platform frame, wherein the platform frame comprises a bottom support plate and a supporting plate threadedly connected above the bottom support plate; side blocks are welded on both sides of the top end of the bottom support plate, and a rear block is welded on the rear side of the top end of the bottom support plate; a supporting reinforcement assembly is arranged between the bottom support plate and the supporting plate, and is used to enhance the supporting strength of the bottom end of the supporting plate.

[0006] Among them, the supporting reinforcement component includes two first reinforcement strips cross-fixed obliquely at the top of the bottom support plate and two second reinforcement strips fixedly connected between the front and rear ends of the two first reinforcement strips, and the bottom end of the second reinforcement strip is fixedly connected to the top of the bottom support plate.

[0007] The bottom ends of the two side blocks at the opposite ends are symmetrically provided with clearance grooves, and the ends of the first reinforcement strip and the second reinforcement strip connected are both located in the clearance grooves. The front and rear ends of the side blocks are provided with placement grooves that are connected with the clearance grooves, and a docking component is arranged in the placement grooves.

[0008] The left and right sides of the front end of the rear block located at the rear side are fixedly connected to the rear end of the side block, and two limit grooves are set through the top of the rear block, and a circular docking groove is fixedly connected to the inner wall of the limit groove near the top groove, and a limit piece is arranged in the limit groove.

[0009] In one possible implementation, a first fixing plate is provided at the upper end of the side block, and alignment groups are provided at the front and rear ends of the first fixing plate corresponding to the positions of the placement grooves, the alignment group includes two front and rear offset guide rods, the two guide rods are respectively provided corresponding to the guide blocks in the placement grooves, a docking threaded hole is provided at the top end of the side block between the two placement grooves, a threaded countersunk hole is provided on the first fixing plate at a position corresponding to the docking threaded hole on the side block, and the docking threaded hole and the threaded countersunk hole are threadedly connected by a long screw.

[0010] In one possible implementation, a second fixed plate is provided at the upper end of the rear stop block, and a round-shaped clamping block is provided at the positions corresponding to the limit grooves on the left and right sides of the second fixed plate; the round-shaped clamping block is engaged with the limit groove, a docking threaded hole is provided at the top of the rear stop block, and a threaded countersunk hole is provided on the second fixed plate at the position corresponding to the docking threaded hole on the rear stop block, and the docking threaded hole and the threaded countersunk hole are threadedly connected by a long screw.

[0011] In one possible implementation, the docking assembly includes a trapezoidal clamping strip fixedly connected to adjacent two side walls in the placement groove, a docking piece is clamped in the trapezoidal clamping strip, and guide blocks with through holes are fixedly connected to other adjacent two side walls in the placement groove; the docking piece is composed of a triangular block and a rectangular oblique strip integrally formed on the triangular block, a connecting block is fixedly connected to the bottom end of the triangular block, trapezoidal grooves are opened on both sides of the triangular block that are not in contact with the rectangular block, and the trapezoidal grooves are clamped and matched with the trapezoidal clamping strip.

[0012] In one possible implementation, both ends of the first reinforcement strip are provided with a group of mating grooves, each group of mating grooves includes a docking vertical groove close to the end of the first reinforcement strip and a docking oblique groove close to the docking vertical groove, the docking vertical groove is snap-fitted with the connecting block at the bottom end of the docking piece, and the docking oblique groove is snap-fitted with the rectangular strip on the docking piece.

[0013] In one possible implementation, the second reinforcement strip located on the rear side is symmetrically provided with rectangular through grooves, the second reinforcement strip located on the front side is symmetrically provided with step grooves, and the rectangular through grooves and the step grooves on the same side are arranged in one-to-one correspondence, and transition through grooves are provided at the positions corresponding to the rectangular through grooves and the step grooves on the two first reinforcement strips, and a connecting strip is commonly clamped on the rectangular through grooves, transition through grooves and the step grooves on the same side.

[0014] In one possible implementation, a rectangular protrusion is integrally formed on the front side of the connecting strip, and the rectangular protrusion is correspondingly snapped into the front side of the stepped groove. A limiting through groove is provided near the rear end of the connecting strip, and a limiting inclined groove is provided at the upper end of the connecting strip and in front of the limiting through groove.

[0015] In one possible implementation, the limit member is composed of two rectangular vertical bars and has an inverted V-shaped structure. The rectangular vertical bar on the front side is arranged at an angle, and a bottom docking slot and a bottom docking rectangular slot are provided on the rear side of the top end of the bottom support plate corresponding to the position of the limit member, and the bottom docking slot is located on the front side of the bottom docking rectangular slot.

[0016] In one possible implementation, a slot is provided at the middle of the top end of one of the first reinforcement strips, and a slot is also provided at the middle of the bottom end of the other first reinforcement strip. The depth of the slot is half the height of the first reinforcement strip, and the two slots are mated.

[0017] In one possible implementation, it also includes a positioning member, which includes two long bars arranged on the left and right sides of the side block, one of the long bars is fixedly connected to a connecting rod near the front side, and the other long bar is fixedly connected to a connecting rod near the rear side, and the two long bars are provided with connecting grooves at positions corresponding to the connecting rods on the long bars on the opposite sides, and the two connecting rods slide through the first reinforcement bar and the limiting member, and the first reinforcement bar and the limiting member are provided with positioning holes at positions corresponding to the connecting rods.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0019] 1. An ultra-large load hydraulic freight elevator provided according to an embodiment of the present invention forms an assembled stable structure through the platform frame as a whole, so that when the platform frame is subjected to force in the middle, the gravity can be dispersed on both sides, and the entire structure jointly bears the external force, which can greatly reduce the problems of middle depression, fracture, etc. caused by concentrated force in the middle.

[0020] 2. According to an embodiment of the present invention, an ultra-large load hydraulic freight elevator is provided, which can enhance the supporting force at the bottom of the platform frame by setting a supporting reinforcement component between the bottom support plate and the supporting plate, and the supporting reinforcement component is composed of a plurality of triangular structures, making the elevator more stable as a whole.

[0021] 3. According to an embodiment of the present invention, an extra-large load hydraulic freight elevator is provided, which can stably connect the side structure and the bottom structure of the platform frame through the setting of docking components and limiter structures, thereby enhancing the overall strength and having a certain stability. The overall structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the platform frame structure of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the platform frame portion of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the first fixed plate structure of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the second fixed plate structure of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0026] Figure 5 It is a structural top view of a side block and a rear block of an ultra-large load hydraulic freight elevator provided by an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure of the platform frame portion of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the structural connection between a docking assembly and a supporting reinforcement assembly of an ultra-large load hydraulic freight elevator provided by an embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the connecting bar structure of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0030] Fig. 9 It is a schematic diagram of the structural connection between a bottom support plate and a supporting reinforcement assembly of an ultra-large load hydraulic freight elevator provided by an embodiment of the present invention.

[0031] Fig.10 It is a schematic diagram of the docking structure of an ultra-large load hydraulic freight elevator provided in an embodiment of the present invention.

[0032] In the figure: 1, bottom support plate; 11, side block; 111, give way groove; 112, placement groove; 113, guide block; 12, rear block; 121, limit groove; 122, round docking groove; 13, first fixed plate; 131, guide rod; 14, second fixed plate; 141, round card block; 15, bottom docking card slot; 16, bottom docking rectangular slot; 2, supporting plate; 3, supporting reinforcement assembly; 31, first reinforcement strip; 311, docking vertical slot; 312, docking oblique slot; 313, transition slot; 32, second reinforcement strip; 321, rectangular slot; 322, stepped slot; 4, connecting strip; 41, limit slot; 42, limit oblique slot; 5, docking assembly; 51, trapezoidal card strip; 52, docking member; 6, limit member; 7, alignment member; 71, long rod; 72, connecting rod. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] A super-large load hydraulic freight elevator includes a platform frame, a guide rail system, a hydraulic system, a drive system, a control system, a ground support structure and a safety device, wherein the platform frame is installed on the guide rail system, the guide rail system is installed on the ground support structure, the bottom of the ground support structure is installed on the ground of a building, and the top of the ground support structure is installed on the top of the building; the hydraulic system platform frame provides lifting power, the hydraulic system is installed on the ground support structure and connected to the platform frame; the drive system is connected to the hydraulic system and provides power to the hydraulic system; the control system is connected to the hydraulic system and the drive system and controls the hydraulic system and the drive system to drive the platform frame to operate; the safety device is connected to the control system, and the safety device cuts off the power supply or sounds an alarm in time under abnormal circumstances; the guide rail system, the hydraulic system, the drive system, the control system, the ground support structure and the safety device are all prior art, which are not shown in the accompanying drawings and will not be described again.

[0035] See also Figure 1 and Figure 2 The platform frame includes a bottom support plate 1 and a support plate 2 threadedly connected to the top of the bottom support plate 1; side blocks 11 are welded on both sides of the top of the bottom support plate 1, and a rear block 12 is welded on the rear side of the top of the bottom support plate 1; a support reinforcement component 3 is arranged between the bottom support plate 1 and the support plate 2, and is used to enhance the supporting strength of the bottom end of the support plate 2.

[0036] Continue reading Figure 5 and Figure 7 The supporting reinforcement assembly 3 includes two first reinforcement bars 31 cross-fixed obliquely at the top of the bottom support plate 1 and two second reinforcement bars 32 fixedly connected between the front and rear ends of the two first reinforcement bars 31, and the bottom ends of the second reinforcement bars 32 are fixedly connected to the top of the bottom support plate 1. A slot is provided in the middle of the top of one first reinforcement bar 31, and a slot is also provided in the middle of the bottom of the other first reinforcement bar 31. The depth of the slot is half of the height of the first reinforcement bar 31, and the two slots are matched and butted.

[0037] See also Figure 2 and Figure 6 The bottom ends of the two side blocks 11 have symmetrical front and rear clearance grooves 111, and the ends of the first reinforcement strip 31 and the second reinforcement strip 32 are both located in the clearance grooves 111. The front and rear ends of the side blocks 11 are provided with placement grooves 112 that are connected to the clearance grooves 111, and the placement grooves 112 are arranged in the placement grooves 112.

[0038] See also Figure 2 and Figure 5 The left and right sides of the front end of the rear block 12 located at the rear side are fixedly connected to the rear end of the side block 11, and two limit grooves 121 are set through the top of the rear block 12, and the inner wall of the limit groove 121 is fixedly connected with a circular docking groove 122 near the top groove, and a limit member 6 is set in the limit groove 121.

[0039] In the present invention, all snap-fits and snap-fits are interference fits, so as to adapt to the need to withstand large loads for a long time and ensure the stability of the structure. External tools are needed for snap-fitting. Specifically, the two first reinforcing strips 31 are first connected. Since the depth of the slot is half the height of the first reinforcing strip 31, after the two slots are connected, the top ends of the two first reinforcing strips 31 are flush, and the joints of the two first reinforcing strips 31 can be welded and fixed. At the same time, the two second reinforcing strips 32 are respectively placed on the front and rear sides of the first reinforcing strip 31 and welded to the first reinforcing strip 31. The "8"-shaped structure composed of the first reinforcing strip 31 and the second reinforcing strip 32 is welded and fixed to the top of the bottom support plate 1.

[0040] Then, the two side blocks 11 are welded and fixed to the left and right sides of the top of the bottom support plate 1, and the rear block 12 is first welded and fixed to the rear side of the top of the bottom support plate 1 and then welded and fixed to the position where the side blocks 11 are connected to form a preliminary frame.

[0041] See also Figure 2 , Figure 7 and Fig.10The docking assembly 5 includes a trapezoidal clamping strip 51 fixedly connected to the adjacent two side walls in the placement groove 112, a docking piece 52 is clamped in the trapezoidal clamping strip 51, and a guide block 113 with a through hole is fixedly connected to the other adjacent two side walls in the placement groove 112. Both ends of the first reinforcement strip 31 are provided with a matching groove group, each group of matching grooves includes a docking vertical groove 311 near the end of the first reinforcement strip 31 and a docking oblique groove 312 near the docking vertical groove 311, the docking vertical groove 311 is clamped and matched with the connecting block at the bottom of the docking piece 52, and the docking oblique groove 312 is correspondingly clamped and matched with the rectangular strip on the docking piece 52.

[0042] Continue reading Fig.10 The docking piece 52 is composed of a triangular block and a rectangular oblique strip integrally formed on the triangular block. The bottom end of the triangular block is fixedly connected to a connecting block. Trapezoidal grooves are provided on both sides of the triangular block that are not in contact with the rectangular block. The trapezoidal grooves are engaged with the trapezoidal clamping strip 51.

[0043] The four docking pieces 52 are snapped into the clearance grooves 111 one by one in turn, and the trapezoidal grooves on the docking pieces 52 slide downward along the trapezoidal clamping strips 51 until the connecting block at the bottom end of the docking piece 52 is engaged with the docking vertical groove 311. At this time, the bottom end of the rectangular oblique strip on the docking piece 52 is engaged with the docking oblique groove 312, and the bottom end of the triangular block contacts the top end of the first reinforcement strip 31 and the second reinforcement strip 32, and the top end of the triangular block is located at the notch position of the clearance groove 111.

[0044] See also Figure 7 and Fig. 9 The second reinforcing strip 32 at the rear side is symmetrically provided with rectangular through grooves 321, and the second reinforcing strip 32 at the front side is symmetrically provided with stepped grooves 322, and the positions of the rectangular through grooves 321 and the stepped grooves 322 on the same side are arranged in a one-to-one correspondence, and the positions of the two first reinforcing strips 31 corresponding to the rectangular through grooves 321 and the stepped grooves 322 are provided with transition through grooves 313, and the rectangular through grooves 321, the transition through grooves 313 and the stepped grooves 322 on the same side are jointly clamped with a connecting strip 4.

[0045] Continue reading Figure 8 A rectangular protrusion is integrally formed on the front side of the connecting strip 4, and the rectangular protrusion is correspondingly snapped into the front side of the stepped groove 322. A limiting through groove 41 is provided near the rear end of the connecting strip 4, and a limiting inclined groove 42 is provided at the upper end of the connecting strip 4 and in front of the limiting through groove 41.

[0046] After the four docking parts 52 are docked, the front sides of the two connecting strips 4 are passed through the rectangular through groove 321 of the rear second reinforcement strip 32, the transition through groove 313 on the two first reinforcement strips 31 and the stepped groove 322 of the front second reinforcement strip 32 in sequence, until the rectangular protrusion on the front side of the connecting strip 4 is snap-fitted with the stepped groove 322 on the front second reinforcement strip 32. The snap-fit ​​between the rectangular protrusion and the stepped groove 322 plays a role of alignment on the one hand, and also plays a role of enhancing the connection stability on the other hand.

[0047] See also Figure 2 , Figure 6 and Fig. 9 The limiting member 6 is composed of two rectangular vertical bars and presents an inverted V-shaped structure. The rectangular vertical bar located on the front side is arranged obliquely. A bottom docking slot 15 and a bottom docking rectangular slot 16 are provided on the rear side of the top end of the bottom support plate 1 corresponding to the position of the limiting member 6, and the bottom docking slot 15 is located on the front side of the bottom docking rectangular slot 16.

[0048] Then place the limiter 6 in the limiter groove 121, and the rectangular vertical bar on the rear side of the limiter 6 slides downward along the outer side wall of the circular docking groove 122 in the limiter groove 121 until the bottom end of the limiter 6 passes through the limiter groove 41 and the limiter inclined groove 42 on the connecting strip 4, and the rectangular vertical bar on the front side of the limiter 6 passes through and inserts in the limiter inclined groove 42 until it is snapped into the bottom docking slot 15, and the rectangular vertical bar on the rear side passes through and inserts in the limiter groove 41 until it is snapped into the bottom docking rectangular groove 16, completing the snapping of the limiter 6. The two first fixing plates 13 are sequentially docked with the side block 11, and the guide rod 131 is correspondingly inserted into the through hole on the guide block 113, which plays the role of limit docking, and at the same time, the first fixing plate 13 is docked with the side block 11 by long screws. Similarly, the second fixing plate 14 is connected to the rear block 12, the round-shaped clamping block 141 is correspondingly connected to the round-shaped docking groove 122, and the second fixing plate 14 is connected to the rear block 12 by long screws.

[0049] See also Figure 1 , Figure 2 and Figure 3 A first fixing plate 13 is provided at the upper end of the side block 11, and alignment groups are provided at the front and rear ends of the first fixing plate 13 corresponding to the positions of the placement grooves 112. The alignment group includes two front and rear offset guide rods 131, and the two guide rods 131 are respectively provided corresponding to the guide blocks 113 in the placement grooves 112. A docking threaded hole is also provided at the top of the side block 11 between the two placement grooves 112, and a threaded countersunk hole is provided on the first fixing plate 13 at a position corresponding to the docking threaded hole on the side block 11, and the docking threaded hole and the threaded countersunk hole are threadedly connected by long screws.

[0050] See also Figure 2 and Figure 4A second fixing plate 14 is provided at the upper end of the rear block 12, and a round-shaped clamping block 141 is provided at the positions corresponding to the limiting groove 121 on the left and right sides of the second fixing plate 14; the round-shaped clamping block 141 is engaged with the limiting groove 121, and a docking threaded hole is provided at the top of the rear block 12, and a threaded countersunk hole is provided on the second fixing plate 14 at the position corresponding to the docking threaded hole on the rear block 12, and the docking threaded hole and the threaded countersunk hole are threadedly connected by a long screw.

[0051] The first fixing plate 13 further positions and fixes the docking assembly 5 in the placement groove 112. Specifically, the two guide rods 131 are respectively inserted into the guide blocks 113, and the first fixing plate 13 is threadedly fixedly connected to the side block 11 by long screws. Similarly, the second fixing plate 14 further positions and fixes the limiting member 6 in the limiting groove 121. Specifically, the circular clamping block 141 is clamped and fixedly engaged with the limiting groove 121, and the second fixing plate 14 is threadedly fixedly connected to the rear block 12 by long screws.

[0052] See also Figure 2 and Figure 7 , and also includes a positioning member 7, which includes two long bars 71 arranged on the left and right sides of the side stopper 11, one of the long bars 71 is fixedly connected to a connecting rod 72 near the front side, and the other long bar 71 is fixedly connected to a connecting rod 72 near the rear side. The two long bars 71 are provided with connecting grooves corresponding to the positions of the connecting rods 72 on the long bars 71 on the opposite sides, and the two connecting rods 72 are slidably passed through the first reinforcement strip 31 and the limiting member 6, and the positions of the first reinforcement strip 31 and the limiting member 6 corresponding to the connecting rods 72 are provided with positioning holes. Specifically, the side of the long bar 71 away from the connecting rod 72 is slidably installed on the guide rail system.

[0053] Move the two long bars 71 on the left and right sides toward the direction close to the side block 11 at the same time, and the connecting rod 72 on one long bar 71 is correspondingly engaged with the connecting groove on the other long bar 71, so that the long bars 71 on both sides form a stable connection, and the connecting rod 72 passes through the first reinforcing bar 31 and the connecting bar 4 in sequence to form a plurality of triangular structures, which can increase the stability of the connection itself while enhancing the overall connection stability. The long bar 71 and the bottom support plate 1 can be fixed by pins or welding.

[0054] Finally, the supporting plate 2 is fixed to the bottom supporting plate 1 by threaded connection. The connection method is the same as the threaded connection between the first fixing plate 13 and the side stopper 11, and will not be described again here.

[0055] After completing the above installation steps, the platform frame will be completely installed. The installed platform frame will be fixedly connected to the existing telescopic end of the hydraulic system and slidably installed on the guide rail system at the same time.

[0056] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An extra-large load hydraulic freight elevator, characterized by: The platform frame comprises a bottom support plate (1) and a support plate (2) threadedly connected to the top of the bottom support plate (1); side blocks (11) are welded on both left and right sides of the top of the bottom support plate (1), and a rear block (12) is welded on the rear side of the top of the bottom support plate (1); A support reinforcement component (3) is arranged between the bottom support plate (1) and the support plate (2) and is used to enhance the support strength of the bottom end of the support plate (2); The supporting reinforcement assembly (3) comprises two first reinforcement strips (31) cross-fixed and obliquely fixed at the top of the bottom support plate (1) and two second reinforcement strips (32) fixedly connected between the front and rear ends of the two first reinforcement strips (31), and the bottom ends of the second reinforcement strips (32) are fixedly connected to the top of the bottom support plate (1); The bottom ends of the two side blocks (11) are symmetrically provided with clearance grooves (111) at the front and rear sides of the opposite ends. The ends of the first reinforcement strip (31) and the second reinforcement strip (32) that are connected are both located in the clearance grooves (111). The front and rear ends of the side blocks (11) are provided with placement grooves (112) that are connected to the clearance grooves (111). The placement grooves (112) are connected to the clearance grooves (111). A docking assembly (5) is arranged in the placement grooves (112). The front left and right sides of the rear stopper (12) located at the rear side are fixedly connected to the rear end of the side stopper (11); the top of the rear stopper (12) is provided with two limit grooves (121) extending therethrough; the inner wall of the limit groove (121) is fixedly connected with a circular docking groove (122) near the top groove opening; and a limit member (6) is arranged in the limit groove (121).

2. The super-large load hydraulic freight elevator according to claim 1, characterized in that: A first fixing plate (13) is arranged at the upper end of the side block (11); an alignment group is arranged at the front and rear ends of the first fixing plate (13) at positions corresponding to the placement grooves (112); the alignment group comprises two front and rear misaligned guide rods (131); the two guide rods (131) are arranged corresponding to the guide blocks (113) in the placement grooves (112); a butt-jointed threaded hole is provided at the top end of the side block (11) between the two placement grooves (112); a threaded countersunk hole is provided on the first fixing plate (13) at a position corresponding to the butt-jointed threaded hole on the side block (11); the butt-jointed threaded hole and the threaded countersunk hole are threadedly connected by long screws.

3. The super-large load hydraulic freight elevator according to claim 1, characterized in that: A second fixing plate (14) is arranged at the upper end of the rear stopper (12), and a circular clamping block (141) is arranged at positions corresponding to the limiting groove (121) on the left and right sides of the second fixing plate (14); the circular clamping block (141) is engaged with the limiting groove (121), a butt-jointed threaded hole is provided at the top end of the rear stopper (12), a threaded countersunk hole is provided on the second fixing plate (14) at a position corresponding to the butt-jointed threaded hole on the rear stopper (12), and the butt-jointed threaded hole and the threaded countersunk hole are threadedly connected by a long screw.

4. The super-large load hydraulic freight elevator according to claim 1, characterized in that: The docking assembly (5) comprises a trapezoidal clamping strip (51) fixedly connected to adjacent two side walls in the placement groove (112), a docking piece (52) being clamped in the trapezoidal clamping strip (51), and a guide block (113) with a through hole being fixedly connected to the other adjacent two side walls in the placement groove (112); the docking piece (52) is composed of a triangular block and a rectangular oblique strip integrally formed on the triangular block, a connecting block being fixedly connected to the bottom end of the triangular block, trapezoidal grooves being provided on two sides of the triangular block that are not in contact with the rectangular block, and the trapezoidal grooves are clamped and matched with the trapezoidal clamping strip (51).

5. The super-large load hydraulic freight elevator according to claim 1, characterized in that: Both ends of the first reinforcing strip (31) are provided with a matching groove group, each group of matching grooves comprises a docking vertical groove (311) close to the end of the first reinforcing strip (31) and a docking oblique groove (312) close to the docking vertical groove (311), the docking vertical groove (311) is snap-fitted with a connecting block at the bottom end of the docking piece (52), and the docking oblique groove (312) is correspondingly snap-fitted with a rectangular strip on the docking piece (52).

6. The super-large load hydraulic freight elevator according to claim 1, characterized in that: The second reinforcing strip (32) located at the rear side is symmetrically provided with a rectangular through slot (321), and the second reinforcing strip (32) located at the front side is symmetrically provided with a stepped slot (322), and the rectangular through slot (321) and the stepped slot (322) located on the same side are arranged in a one-to-one correspondence, and transition through slots (313) are provided at positions corresponding to the rectangular through slot (321) and the stepped slot (322) on the two first reinforcing strips (31), and the rectangular through slot (321), the transition through slot (313) and the stepped slot (322) located on the same side are jointly clamped with a connecting strip (4).

7. The super-large load hydraulic freight elevator according to claim 6, characterized in that: The front side of the connecting strip (4) is integrally formed with a rectangular protrusion, which is correspondingly snapped into place on the front side of the stepped groove (322). The connecting strip (4) is provided with a limiting through groove (41) near the rear end, and a limiting inclined groove (42) is provided at the upper end of the connecting strip (4) and located in front of the limiting through groove (41).

8. The super-large load hydraulic freight elevator according to claim 1, characterized in that: The limiting member (6) is composed of two rectangular vertical bars and presents an inverted V-shaped structure. The rectangular vertical bar located at the front side is arranged obliquely. A bottom docking slot (15) and a bottom docking rectangular slot (16) are provided at the rear side of the top end of the bottom support plate (1) corresponding to the position of the limiting member (6), and the bottom docking slot (15) is located at the front side of the bottom docking rectangular slot (16).

9. The super-large load hydraulic freight elevator according to claim 1, characterized in that: A slot is provided in the middle of the top end of one of the first reinforcing strips (31), and a slot is also provided in the middle of the bottom end of the other first reinforcing strip (31). The depth of the slot is half the height of the first reinforcing strip (31), and the two slots are matingly connected.

10. The super-large load hydraulic freight elevator according to claim 1, characterized in that: The aligning member (7) further comprises a positioning member (7), wherein the positioning member (7) comprises two long bars (71) arranged on the left and right sides of the side stopper (11), wherein one of the long bars (71) is fixedly connected to a connecting rod (72) near the front side, and the other long bar (71) is fixedly connected to a connecting rod (72) near the rear side, and the two long bars (71) are provided with connecting grooves at positions corresponding to the connecting rods (72) on the long bars (71) on the opposite sides, and the two connecting rods (72) are slidably passed through the first reinforcing strip (31) and the limiting member (6), and the first reinforcing strip (31) and the limiting member (6) are provided with positioning holes at positions corresponding to the connecting rods (72).

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