Composite jacking device based on hydraulic loading and mechanical locking and using method

Abstract

The invention discloses a composite jacking device based on hydraulic loading and mechanical locking and a using method. The device comprises a supporting piece, a jacking piece, a locking piece and a hydraulic loading assembly. The supporting piece is fixedly arranged, the jacking piece is installed on the supporting piece in a sliding mode, the hydraulic loading assembly is detachably installed on the supporting piece and drives the jacking piece to slide along the supporting piece to abut against a supported object through hydraulic pressure, and then set jacking force is applied to the supported object. The locking piece is suitable for being installed on the supporting piece and locking the position of the jacking piece after the jacking piece completes jacking; the hydraulic loading assembly is suitable for being detached from the supporting piece after locking of the locking piece is completed. The hydraulic loading device has the beneficial effects that the mechanical loading assembly and the hydraulic loading assembly are designed by integrating the advantages of machinery and hydraulic pressure, and seamless connection of hydraulic loading and mechanical loading is achieved. The hydraulic loading assembly is separated from the mechanical loading assembly after loading is completed, and the hydraulic loading assembly can be recycled.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a composite jacking device based on hydraulic loading and mechanical locking. Background Art

[0002] In the construction industry, in order to ensure the safety of the construction environment, the requirements for safety protection levels are getting higher and higher. For example, support structures are often needed in the construction process. In order to ensure the stability of the support, it is often necessary to set up a jacking device between the support and the supported object. The height adjustment of the jacking device can ensure a stable connection between the support and the supported object.

[0003] Existing jacking devices are mainly divided into two types: mechanical jacking and hydraulic jacking. Among them, mechanical jacking devices are laborious to load and have a low upper limit and a large size, but the mechanical structure is more stable and durable during the force-holding stage; hydraulic jacking devices have strong loading force and a small size, but the hydraulic structure is prone to leakage during the force-holding stage and cannot meet the needs of long-term loading. Summary of the invention

[0004] One of the purposes of the present application is to provide a composite lifting device based on hydraulic loading and mechanical locking that can solve at least one of the defects in the above-mentioned background technology.

[0005] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: a composite jacking device based on hydraulic loading and mechanical locking, comprising a support member, a jacking member, a locking member and a hydraulic loading assembly; the support member is fixedly arranged, the jacking member is slidably installed on the support member, the hydraulic loading assembly is detachably installed on the support member and drives the jacking member to slide along the support member until it is against the supported object through hydraulic pressure, thereby applying a set jacking force to the supported object; the locking member is suitable for being installed on the support member and locking the position of the jacking member after the jacking member completes jacking; the hydraulic loading assembly is suitable for being removed from the support member after the locking member completes locking.

[0006] Preferably, the hydraulic loading assembly includes a hydraulic cylinder and a connecting assembly; the hydraulic cylinder is detachably mounted on the support member via the connecting assembly, the hydraulic cylinder is suitable for hydraulically driving the lifting member via a piston rod, and the connecting assembly is suitable for limiting the lifting member during the installation of the hydraulic cylinder.

[0007] Preferably, the connecting assembly includes a connecting head and a retaining ring; the connecting head is connected to the support member and the hydraulic cylinder at both ends respectively; the connecting head is tubular, and the retaining ring is slidably installed on the inner side of the connecting head and cooperated with by a positioning structure; the retaining ring is locked at the set position of the connecting head by the positioning structure, thereby limiting the movement of the lifting member toward the direction close to the hydraulic cylinder.

[0008] Preferably, the connector is threadedly connected to the support member and the hydraulic cylinder at both ends.

[0009] Preferably, the retaining ring includes a ring body and a limiting rod radially extending on the outer side of the ring body; the inner diameter of the ring body is larger than the diameter of the piston rod and smaller than the cross-sectional size of the lifting member; a connected movable groove and a limiting groove are provided on the outer side of the connecting head, the movable groove extends along the axial direction of the connecting head, and the limiting groove is located at one end of the connecting head away from the hydraulic cylinder and extends in a circumferential direction; the limiting rod cooperates with the limiting groove to form the positioning structure.

[0010] Preferably, the lifting member includes a top plate and a first push rod fixed to each other; the first push rod is slidably installed on the support member and driven to cooperate with the hydraulic loading assembly, so that the first push rod drives the top plate to contact the supported object at a set pressure under the drive of the hydraulic loading assembly.

[0011] Preferably, the lifting member also includes a guide seat, a push plate and a lifting platform; the guide seat is fixedly installed on the top of the support member; the number of the push plate is at least one, and the push plate is slidably installed on the guide seat along an axial direction perpendicular to the first push rod, and a plurality of the push plates are stacked and arranged parallel to the axial direction of the first push rod; the lifting platform is slidably installed on the guide seat along an axial direction parallel to the first push rod, and the lifting platform and the top plate are spaced apart, and the push plate is suitable for wedge-fitting with the lifting platform and the top plate through both ends.

[0012] Preferably, the locking member is a bolt; the locking member is suitable for being threadedly screwed with the supporting member until the end thereof abuts against the top plate after the lifting member completes lifting.

[0013] Preferably, the lifting member includes a top plate, an adjusting assembly and a second push rod; the top plate is connected to the second push rod through the adjusting assembly; the adjusting assembly is suitable for length telescopic adjustment, and the second push rod is slidably installed on the supporting member and driven to cooperate with the hydraulic loading assembly, so that the second push rod drives the top plate to contact the supported object at a set pressure under the drive of the hydraulic loading assembly.

[0014] Preferably, the adjustment assembly includes a screw and an inner sleeve; the screw is fixedly connected to the top plate, the inner sleeve is threadedly connected to the screw, and one end of the inner sleeve away from the top plate is fixedly connected to the second top rod.

[0015] Preferably, the locking member is a bolt; the locking member is suitable for being threadedly screwed with the supporting member until it abuts against the second push rod or the adjusting assembly after the lifting member completes the lifting.

[0016] A method for using the above-mentioned composite jacking device based on hydraulic loading and mechanical locking comprises the following steps: S100: Select appropriate lifting parts according to the application scenario and assemble the lifting parts and supporting parts, and select appropriate locking parts; S200: installing the support member at the base point of the object to be lifted, and installing a hydraulic loading assembly at the end of the support member; S300: Loading the hydraulic loading component to the expected load through the oil pump; S400: After loading is completed, the locking member is matched and installed with the supporting member until the locking member locks the position of the lifting member; S500: After completing the installation of the locking components, remove the hydraulic loading assembly for recycling.

[0017] Compared with the prior art, the beneficial effects of this application are: By integrating the advantages of mechanics and hydraulics, a mechanical holding component and a hydraulic loading component are designed to achieve seamless connection between hydraulic loading and mechanical holding. And because the hydraulic loading component does not participate in the holding, the hydraulic loading component is separated from the mechanical holding component after loading is completed, so that the hydraulic loading component can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the matching structure of one example of the lifting component of the present application and the hydraulic loading assembly.

[0019] Figure 2 This is a schematic diagram of the exploded state of the hydraulic loading assembly in this application.

[0020] Figure 3 For this application Figure 1 Schematic diagram of the exploded state of the lifting part shown.

[0021] Figure 4 For this application Figure 1 The cross-sectional structural schematic diagram of the lifting member shown is in a non-lifted state.

[0022] Figure 5 For this application Figure 1 The cross-sectional structural schematic diagram of the jacking member shown is in a jacking state driven by the hydraulic loading assembly.

[0023] Figure 6 A schematic diagram of the matching structure of another example of the lifting component of the present application and the hydraulic loading assembly.

[0024] Figure 7 For this application Figure 6 A schematic cross-sectional structural diagram of the lifting member shown.

[0025] Figure 8 This is a schematic structural diagram of another example of the lifting component of the present application.

[0026] Fig. 9 For this application Figure 8 A schematic cross-sectional structural diagram of the lifting member shown.

[0027] In the figure: support member 1, base 11, screw hole 110, outer sleeve 12, lifting member 2, top plate 21, screw rod 211, first wedge block 212, first push rod 22, inner sleeve 23, adjusting nut 24, second push rod 25, connecting plate 251, guide seat 26, lifting platform 27, second wedge block 271, push plate 28, locking member 3, hydraulic loading assembly 4, hydraulic cylinder 41, cylinder body 411, oil port 4110, end cover 4111, piston rod 412, connecting assembly 42, connecting head 421, movable groove 4210, limiting groove 4211, retaining ring 422, ring body 4221, limiting rod 4222. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that in the description of this specification, the description with reference to 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 present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0029] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The terms "including" and "having" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0034] One aspect of the present application provides a composite lifting device based on hydraulic loading and mechanical locking, such as Figure 1As shown, one of the preferred embodiments includes a support member 1, a lifting member 2, a locking member 3 and a hydraulic loading assembly 4. Among them, the support member 1, the lifting member 2 and the locking member 3 can cooperate with each other to form a mechanical holding assembly; that is, when the composite lifting device based on hydraulic loading and mechanical locking of the present application is used, the hydraulic loading assembly 4 can drive the mechanical holding assembly to contact the supported object, and the lifting force of the mechanical holding assembly on the supported object is obtained by applying the hydraulic loading assembly 4. After completing the loading of the lifting force on the supported object, the mechanical holding assembly can be load locked under the action of its own locking member 3, so that the subsequent lifting of the supported object is maintained by the mechanical holding assembly. Finally, the hydraulic loading assembly 4 can be recycled for loading other mechanical holding assemblies. Compared with the traditional method, the present application designs a mechanical holding assembly and a hydraulic loading assembly 4 by integrating the advantages of mechanics and hydraulics, and realizes seamless connection between hydraulic loading and mechanical holding. Furthermore, since the hydraulic loading component 4 does not participate in the loading, the hydraulic loading component 4 can be separated from the mechanical loading component after the loading is completed, so that the hydraulic loading component 4 can be recovered.

[0035] Specifically, Figure 1 As shown, the support member 1 is fixedly arranged to facilitate the subsequent lifting. The specific fixed position of the support member 1 can be selected according to actual needs. For example, the support member 1 can be fixedly installed on the support by bolts or welding. The lifting member 2 is slidably installed on the support member 1. The lifting member 2 is mainly used to lift and support the supported object. The sliding setting of the lifting member 2 can shorten the length of the entire mechanical holding assembly to facilitate installation. The hydraulic loading assembly 4 is detachably installed on the support member 1 and can be driven and matched with the lifting member 2, so that when lifting is required, the hydraulic loading assembly 4 drives the lifting member 2 to slide along the support member 1 until it is against the supported object, and then applies a set lifting force to the supported object. The specific value of the lifting force can be set according to the actual needs of the technicians in this field. The locking member 3 can be installed on the support member 1 after the lifting member 2 completes the lifting and locks the lifting member 2 in position, so that the mechanical holding assembly can lift the supported object with a constant load. The hydraulic loading assembly 4 can be removed from the supporting member 1 after the locking member 3 completes locking.

[0036] In this embodiment, there are many specific structures of the hydraulic loading assembly 4 that can achieve the above functions. For the sake of easy understanding, the following will be described in detail using one of the structures. Figure 2 As shown, the hydraulic loading assembly 4 includes a hydraulic cylinder 41 and a connecting assembly 42. The hydraulic cylinder 41 is detachably mounted on the support member 1 through the connecting assembly 42, and the hydraulic cylinder 41 can hydraulically drive the lifting member 2 through the piston rod 412, and the connecting assembly 42 can limit the lifting member 2 during the installation of the hydraulic cylinder 41.

[0037] It is understandable that the specific structure and working principle of the hydraulic cylinder 41 are well-known technologies to those skilled in the art. For ease of understanding, the structure of the hydraulic cylinder 41 is briefly described below. The hydraulic cylinder 41 mainly includes a cylinder body 411 and a piston rod 412; an oil port 4110 connected to the inner cavity is provided at the bottom of one side of the cylinder body 411, and oil is supplied and discharged to the inner cavity of the cylinder body 411 through the connection between the oil port 4110 and the external oil tank. The piston rod 412 is sealed and slidably installed in the inner cavity of the cylinder body 411, so that the piston rod 412 slides along the inner cavity of the cylinder body 411 under the action of the inner cavity hydraulic oil to load the jacking member 2. An end cover 4111 is provided on the other side of the cylinder body 411, and the driving end of the piston rod 412 can extend out of the end cover 4111, and the cylinder body 411 is detachably connected to the connecting assembly 42 through the end cover 4111.

[0038] It should be known that the lifting member 2 is slidably mounted on the support member 1, and when the lifting member 2 is not loaded, the locking member 3 is either not yet installed on the support member 1, or the locking member 3 is not in contact with the lifting member 2, which will cause the lifting member 2 to move towards the hydraulic loading assembly 4 under the action of gravity until the lifting member 2 fits the support member 1, or the lifting member 2 directly contacts the piston rod 412, which will cause the transmission pressure of the hydraulic cylinder 41 to be different from the actual pressure, affecting the loading accuracy. Therefore, before the hydraulic cylinder 41 loads the lifting member 2, that is, during the installation of the hydraulic loading assembly 4, it is necessary to limit the lifting member 2 so that a gap is formed between the lifting member 2 and the support member 1.

[0039] In this embodiment, there are many specific structures of the connection assembly 42 that can achieve the above-mentioned limit function. For the sake of easy understanding, the following will be described in detail using one of the structures. Figure 2 , Figure 4 and Figure 5 As shown, the connection assembly 42 includes a connection head 421 and a retaining ring 422. The connection head 421 is connected to the support member 1 and the hydraulic cylinder 41 at both ends; the connection head 421 is tubular, and the retaining ring 422 is slidably installed on the inner side of the connection head 421 and matched through a positioning structure; the retaining ring 422 is locked at the set position of the connection head 421 through the positioning structure, thereby limiting the movement of the lifting member 2 in the direction close to the hydraulic cylinder 41.

[0040] Specifically, there are many specific ways to connect the connector 421 to the support member 1 and the hydraulic cylinder 41, such as Figure 2 , Figure 4 and Figure 5As shown, the connector 421 can be threadedly connected to the support member 1 and the end cover 4111 of the hydraulic cylinder 41 through its two ends. For another example, both ends of the connector 421 are provided with a clamping block, and the support member 1 and the end cover 4111 of the hydraulic cylinder 41 are provided with an L-shaped clamping groove, and the connector 421 is slidably inserted along the clamping groove and then rotated to achieve the axial limitation of the connector 421 and the support member 1 and the hydraulic cylinder 41, thereby ensuring the stable connection between the hydraulic cylinder 41 and the support member 1 during the loading process.

[0041] Specifically, there are many specific structures of the positioning structure formed by the locking ring 422 and the connector 421. For ease of understanding, one of the structures will be described in detail below. Figure 2 , Figure 4 and Figure 5 As shown, the retaining ring 422 includes a ring body 4221 and a limiting rod 4222 extending radially outside the ring body 4221. The inner diameter of the ring body 4221 is larger than the diameter of the piston rod 412 and smaller than the cross-sectional size of the lifting member 2. The outer side of the connector 421 is provided with a movable groove 4210 and a limiting groove 4211 that are connected. The movable groove 4210 extends along the axial direction of the connector 421, and the limiting groove 4211 is located at one end of the connector 421 away from the hydraulic cylinder 41 and extends along the circumferential direction; the limiting rod 4222 cooperates with the limiting groove 4211 to form a positioning structure.

[0042] When installing the hydraulic loading assembly 4, the retaining ring 422 can be aligned and installed along the movable groove 4210 of the connector 421 through the limiting rod 4222 to obtain the connecting assembly 42; then one end of the connector 421 is threadedly connected to the support 1, and then the limiting rod 4222 is driven to slide along the movable groove 4210 to the port position of the limiting groove 4211, and then the retaining ring 422 is positioned by rotating the limiting rod 4222 to slide along the limiting groove 4211. Since the inner diameter of the ring body 4221 of the retaining ring 422 is smaller than the cross-sectional size of the lifting member 2, the lifting member 2 will abut against the ring body 4221, thereby ensuring that a gap is formed between the lifting member 2 and the supporting member 1. Finally, the end cover of the hydraulic cylinder 41 is threadedly connected to the other end of the connector 421, so that the piston rod 412 of the hydraulic cylinder 41 is aligned with the axis of the connector 421.

[0043] Then, the loading of the hydraulic loading assembly 4 begins. The hydraulic cylinder 41 can drive the piston rod 412 to move toward the lifting member 2 by supplying oil to the inner cavity of the cylinder body 41, until the piston rod 412 passes over the retaining ring 422 and contacts the lifting member 2. The retaining ring 422 can be positioned in contact with the limiting groove 4211, that is, the limiting rod 4222 of the retaining ring 422 is driven to rotate into the movable groove 4210. The contact between the piston rod 412 and the lifting member 2 can be observed from the gap in the piston groove 4210. Then the hydraulic cylinder 41 continues to push the lifting member 2 through the piston rod 412 to move until it contacts the supported object and loads it to the set pressure. Finally, the lifting member 2 is locked by the locking member 3 and the hydraulic loading assembly 4 is removed.

[0044] In this embodiment, Figures 3 to 7 As shown, the support member 1 mainly includes a base 11 and an outer sleeve 12. The outer sleeve 12 can be fixedly connected to the base 11 by threaded connection or welding, and the lifting member 2 is slidably installed on the base 11. The outer sleeve 12 can protect the lifting member 2 to ensure that the lifting member 2 can be lifted smoothly. The locking member 3 is installed on the base 11 and can be locked in position with the lifting member 2.

[0045] It should be known that, based on the distance between the support and the supported object, the jacking member 2 may need to move a shorter distance or a longer distance. If the jacking member 2 needs to move a longer distance, the hydraulic loading assembly 4 needs to have an equal driving stroke, which results in a longer length of the entire device, which is inconvenient for daily use. At the same time, when the composite jacking device of the present application is used, there may be a situation where the jacking member 2 cannot directly contact the supported object in the same vertical plane; therefore, based on different scenario requirements, the jacking member 2 can be a non-retractable structure, a length-retractable structure, or an offset structure; for ease of understanding, three specific examples will be used for detailed description below.

[0046] Example 1: Figure 1 , Figures 3 to 5 As shown, the lifting member 2 includes a top plate 21 and a first push rod 22. The top plate 21 is used to contact the supported object to increase the contact area. The first push rod 22 is fixedly connected to the top plate 21, and its connection position is located on the side of the top plate 21 away from the contact with the supported object. The first push rod 22 is slidably installed on the support member 1 and is driven and matched with the hydraulic loading assembly 4, that is, the first push rod 22 can be limitedly matched with the positioning ring 422, and at the same time, the first push rod 22 can drive the top plate 21 to contact the supported object with a set pressure under the drive of the hydraulic cylinder 41.

[0047] In this example, there are many specific structures of the locking member 3, and bolts are preferably used in this example; Figures 3 to 5As shown, the base 11 is provided with screw holes 110; in order to ensure the stability of the locking member 3 in locking the position of the lifting member 2, the screw holes 110 and the locking member 3 are provided in a corresponding number, and the multiple screw holes 110 are arranged at equal intervals along the circumferential direction of the base 11, for example Figure 3 As shown, there are two screw holes 110 and two locking members 3, and the two screw holes 110 are symmetrically arranged; after the hydraulic loading assembly 4 completes loading, the locking member 3 is screwed into the corresponding screw hole 110 until the end of the locking member 3 abuts against the top plate 21.

[0048] Example 2: If Figure 6 and Figure 7 As shown, the lifting member 2 includes a top plate 21, an adjustment assembly and a second top rod 25; the top plate 21 is connected to the second top rod 25 through the adjustment assembly. The adjustment assembly can be adjusted in length, and the second top rod 25 is slidably mounted on the support member 1 and driven by the hydraulic loading assembly 4, so that the second top rod 25 drives the top plate 21 to contact the supported object with a set pressure under the drive of the hydraulic loading assembly 4.

[0049] In this example, there are multiple specific structures of the adjustment component. For ease of understanding, one of the structures will be used for detailed description below. Figure 7 As shown, the adjustment assembly includes a screw rod 211 and an inner sleeve 23; the screw rod 211 is fixedly connected to the top plate 21, the inner sleeve 23 is threadedly connected to the screw rod 211, and the end of the inner sleeve 23 away from the top plate 21 is fixedly connected to the second top rod 25. The screw rod 211 can achieve axial movement relative to the inner sleeve 23 by rotating relative to the inner sleeve 23, thereby adjusting the length of the lifting member 2 to be suitable for supporting scenarios with different spacings.

[0050] Example 3: Figure 8 and Fig. 9 As shown, on the basis of Example 1, the lifting member 2 further includes a guide seat 26, a push plate 28 and a lifting platform 27. The guide seat 26 is fixedly mounted on the top of the support member 1. Specifically, the guide seat 26 can be fixedly mounted on the top of the outer sleeve 12 through one end. The push plate 28 is slidably mounted on the guide seat 26 along the axial direction perpendicular to the first push rod 22; the lifting platform 27 is slidably mounted on the guide seat 26 along the axial direction parallel to the first push rod 22, and the lifting platform 27 is spaced apart from the top plate 21; specifically, the lifting platform 27 is mounted on the other end of the guide seat 26 away from the top plate 21. The two ends of the push plate 28 are wedge-matched with the lifting platform 27 and the top plate 21, respectively.

[0051] Specifically, Fig. 9As shown, a first wedge block 212 is fixedly installed on the top of the top plate 21, and a second wedge block 271 is fixedly installed on the bottom of the lifting platform 27. The cross section of the push plate 28 is a parallelogram, so that the push plate 28 can be wedge-matched with the first wedge block 212 and the second wedge block 271 through the inclined surfaces at both ends. Then, when the top plate 21 moves vertically, the push plate 28 can convert the vertical movement of the top plate 21 into horizontal movement through the sliding cooperation with the first wedge block 212, and the push plate 28 can also convert its own horizontal movement into the vertical movement of the lifting platform 27 through the sliding cooperation with the second wedge block 271, so as to realize the lifting of the supported object by the lifting platform 27. Through the wedge cooperation at both ends of the push plate 28, the stroke of the top plate 21 can be shortened, so as to adapt to the lifting work of a very short distance. At the same time, by offsetting the lifting platform 27 and the top plate 21 through the guide seat 26, the device can be applied to the scene where the top plate 21 cannot directly contact the supported object.

[0052] It is understandable that the degree to which the stroke of the push plate 28 is shortened relative to the top plate 21 depends on the inclination angle of the inclined surfaces at both ends. However, if the inclination angle of the end of the push plate 28 is too large, the stroke of the lifting platform 27 may be too small; of course, if the inclination angle of the end of the push plate 28 is too small, the matching resistance between the top plate 21 and the push plate 28 may be too large. Therefore, the inclination angle of the inclined surfaces at both ends of the push plate 28 should not be too large or too small, and is preferably 30°~60°; for example Fig. 9 As shown, the inclination angle of the inclined surfaces at both ends of the push plate 28 is 45°.

[0053] Since the push plate 28 shortens the stroke of the top plate 21, for scenarios requiring a larger stroke, this embodiment can meet the stroke requirement by increasing the structural size of the push plate 28, or by providing multiple push plates 28. For ease of understanding, the specific implementation method of increasing the stroke by multiple push plates 28 will be described in detail below.

[0054] Specifically, there are multiple push plates 28, and the multiple push plates 28 are stacked and arranged on the guide seat 26 along the axis direction parallel to the first push rod 22. Fig. 9As shown, there are two push plates 28, and the two push plates 28 are initially aligned with each other along the axis direction parallel to the first push rod 22. And the end of the push plate 28 located at the top close to the second wedge block 271 contacts the vertical surface of the second wedge block 271, so that when the push plate 28 located at the bottom slides, the push plate 28 located at the top will remain stationary. When the push plate 28 at the bottom is separated from the first wedge block 212 under the push of the top plate 21, the top plate 21 will contact the end inclined surface of the push plate 28 located at the top through the first wedge block 212, and at this time, the other end inclined surface of the push plate 28 located at the top just separates from the vertical surface of the second wedge block 271 and corresponds to the inclined surface of the second wedge block 271. Therefore, the top plate 21 will squeeze the push plate 28 located at the top through the first wedge block 212, and the push plate 28 at the top will continue to lift the lifting platform 27 through the wedge-shaped cooperation of the inclined surface at the other end and the second wedge block 271.

[0055] It can be understood that in this example, the position adjustment drive of the top plate 21 is generally achieved by the staff directly manually rotating the top plate 21. As the position of the top plate 21 rises to a position close to the supported object, the relative space between the top plate 21 and the supported object is smaller, making it difficult for the staff to continue to adjust the position by manually rotating the top plate 21. Therefore, the solution of this example can be further optimized.

[0056] Specifically, Figure 7 As shown, the adjustment assembly also includes an adjustment nut 24, which can be threadedly matched with the inner sleeve 23; the screw rod 211 is movably matched with the inner sleeve 23 and is threadedly connected to the adjustment nut 24. Through the arrangement of the adjustment nut 24, it is only necessary to directly abut the top plate 21 against the supported object, and then rotate the adjustment nut 24 to move relative to the screw rod 211 until the screw is screwed on the first end of the inner sleeve 23.

[0057] In this example, the specific structure and installation method of the locking member 3 are exactly the same as those of the above-mentioned example 1. The difference is that the locking member 3 is screwed into the corresponding screw hole 110 after the hydraulic loading assembly 4 completes loading until the end of the locking member 3 abuts against the second push rod 25 or the adjustment assembly.

[0058] It is understandable that the specific abutment position of the locking member 3 can be selected according to the specific structure of the second push rod 25 and the adjustment assembly; for ease of understanding, the following will be described in detail by taking the locking member 3 abutting against the second push rod 25 as an example. Figure 7 As shown, a connecting plate 251 is fixedly mounted on one end of the second push rod 25 close to the inner sleeve 23, and the second push rod 25 is fixedly connected to the inner sleeve 23 through the connecting plate 251. The locking member 3 can lock the position of the entire lifting member 2 by abutting against the connecting plate 251 at its end.

[0059] Another aspect of the present application provides a method for using the above-mentioned composite jacking device based on hydraulic loading and mechanical locking, comprising the following steps: S100: Select a suitable lifting member 2 according to the application scenario and assemble the lifting member 2 and the supporting member 1, and select a suitable locking member 3.

[0060] Specifically, for scenarios where the distance between the supported object and the installation base point of the composite jacking device is short, the jacking member 2 may preferably adopt Example 1 in the above content; since the jacking member 2 in Example 1 may also have different lengths, the locking member 3 needs to select a corresponding length for adaptation. After completing the selection of the above parts, it is only necessary to slide the jacking member 2 with the center hole of the base 11 in the support member 1 through the first push rod 22, and then screw the locking member 3 into the screw hole 110 on the base 11 to achieve the assembly of the mechanical holding component. It should be noted that at this time, the end of the locking member 3 does not extend out of the base 11.

[0061] For scenarios where the distance between the supported object and the installation base point of the composite jacking device is relatively large, the jacking member 2 may preferably adopt Example 2 in the above content; since the second push rod 25 in Example 2 may also have different lengths, the locking member 3 needs to select a corresponding length for adaptation. After completing the selection of the above parts, it is only necessary to slide the jacking member 2 with the center hole of the base 11 in the support member 1 through the second push rod 25, and then screw the locking member 3 into the screw hole 110 on the base 11 to achieve the assembly of the mechanical holding component. It should be noted that at this time, the end of the locking member 3 does not extend out of the base 11.

[0062] For scenarios where the installation base point spacing of the composite lifting device of the supported object is extremely short, the lifting member 2 may preferably adopt Example 3 in the aforementioned content; since the lifting member 2 of Example 3 may also have different lengths, the locking member 3 needs to select a corresponding length for adaptation. After completing the selection of the above parts, it is only necessary to slide the lifting member 2 with the center hole of the base 11 in the support member 1 through the first push rod 22, and then screw the locking member 3 into the screw hole 110 on the base 11 to achieve the assembly of the mechanical holding component. It should be noted that at this time, the end of the locking member 3 does not extend out of the base 11.

[0063] S200: Install the support member 1 at the base point of the object to be lifted (ie, the supported object), and install the hydraulic loading assembly 4 at the end of the support member 1.

[0064] Specifically, the entire mechanical holding assembly is fixedly installed through the base 11 of the support member 1. For example, the mechanical holding assembly can be installed at the corresponding base point position on the support through the base 11; specifically, bolt connection or welding can be adopted. After the installation of the mechanical holding assembly is completed, the connecting assembly 42 of the hydraulic loading assembly 4 can be screwed together with the base 11 first; then the retaining ring 422 is pushed to the position where the limiting rod 4222 is engaged with the limiting groove 4211 to ensure that the jacking member 2 will not slide down under the action of gravity to abut against the hydraulic rod 412 of the hydraulic cylinder 41 installed later. After completing the connection between the connecting assembly 42 and the base 11 and limiting the jacking member 2, the hydraulic cylinder 41 can be screwed together with the other end of the connecting assembly 42 to align the hydraulic rod 412 of the hydraulic cylinder 41 with the jacking member 2.

[0065] S300: Loading the hydraulic loading assembly 4 to the expected load through the oil pump.

[0066] Specifically, after the installation of the hydraulic loading assembly 4 is completed, the supported object is ready to be loaded; the specific loading process can be divided into two steps. The first step is the preloading process, that is, the hydraulic cylinder 41 is supplied with oil through an external oil pump, and the hydraulic rod 412 can be extended to contact the lifting member 2; at this time, the limit of the retaining ring 422 can be contacted, and the preloading process is completed. The second step is the formal loading process, that is, the hydraulic cylinder 41 is continuously supplied with oil through an external oil pump until the hydraulic rod 412 lifts the lifting member 2 to contact the supported object and reaches the expected load.

[0067] S400: After loading is completed, the locking member 3 is matched and installed with the supporting member 1 until the locking member 3 locks the position of the lifting member 2.

[0068] Specifically, after the loading of the hydraulic loading assembly 4 is completed, the hydraulic loading assembly 4 can be removed because the subsequent continuous lifting process of the supported object no longer requires the participation of the hydraulic loading assembly 4. However, before removal, the mechanical holding assembly needs to be locked, that is, the locking member 3 is screwed together until the end thereof abuts against the lifting member 2, so that the movement of the lifting member 2 away from the supported object is restricted, thereby ensuring that the subsequent mechanical holding assembly can stably and continuously support the supported object.

[0069] S500: After completing the installation of the locking member 3, the hydraulic loading assembly 4 is removed for recycling.

[0070] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A composite lifting device based on hydraulic loading and mechanical locking, characterized in that: It includes a support member, a lifting member, a locking member and a hydraulic loading assembly; the support member is fixedly arranged, the lifting member is slidably installed on the support member, the hydraulic loading assembly is detachably installed on the support member and drives the lifting member to slide along the support member until it is against the supported object through hydraulic pressure, thereby applying a set lifting force to the supported object; the locking member is suitable for being installed on the support member and locking the position of the lifting member after the lifting member completes the lifting; the hydraulic loading assembly is suitable for being removed from the support member after the locking member completes the locking.

2. The composite lifting device based on hydraulic loading and mechanical locking according to claim 1 is characterized in that: The hydraulic loading assembly includes a hydraulic cylinder and a connecting assembly; the hydraulic cylinder is detachably mounted on the support member via the connecting assembly, the hydraulic cylinder is suitable for hydraulically driving the lifting member via a piston rod, and the connecting assembly is suitable for limiting the lifting member during the installation of the hydraulic cylinder.

3. The composite lifting device based on hydraulic loading and mechanical locking as claimed in claim 2 is characterized in that: The connecting assembly includes a connecting head and a retaining ring; the connecting head is connected to the support member and the hydraulic cylinder at both ends respectively; the connecting head is tubular, and the retaining ring is slidably installed on the inner side of the connecting head and cooperated with by a positioning structure; the retaining ring is locked at the set position of the connecting head by the positioning structure, thereby limiting the movement of the lifting member toward the direction close to the hydraulic cylinder.

4. The composite lifting device based on hydraulic loading and mechanical locking as claimed in claim 3 is characterized in that: The retaining ring includes a ring body and a limiting rod extending radially on the outer side of the ring body; the inner diameter of the ring body is larger than the diameter of the piston rod and smaller than the cross-sectional size of the lifting member; a movable groove and a limiting groove that are connected are provided on the outer side of the connecting head, the movable groove extends along the axial direction of the connecting head, and the limiting groove is located at one end of the connecting head away from the hydraulic cylinder and extends in the circumferential direction; the limiting rod cooperates with the limiting groove to form the positioning structure.

5. The composite lifting device based on hydraulic loading and mechanical locking according to any one of claims 1 to 4, characterized in that: The lifting member includes a top plate and a first push rod fixed to each other; the first push rod is slidably installed on the support member and is driven to cooperate with the hydraulic loading assembly, so that the first push rod drives the top plate to contact the supported object at a set pressure under the drive of the hydraulic loading assembly.

6. The composite lifting device based on hydraulic loading and mechanical locking as claimed in claim 5 is characterized in that: The lifting member also includes a guide seat, a push plate and a lifting platform; the guide seat is fixedly installed on the top of the support member; the number of the push plate is at least one, and the push plate is slidably installed on the guide seat along an axial direction perpendicular to the first push rod, and a plurality of the push plates are stacked and arranged parallel to the axial direction of the first push rod; the lifting platform is slidably installed on the guide seat along an axial direction parallel to the first push rod, and the lifting platform and the top plate are spaced apart, and the push plate is suitable for wedge-fitting with the lifting platform and the top plate through both ends.

7. The composite lifting device based on hydraulic loading and mechanical locking according to any one of claims 1 to 4, characterized in that: The lifting member includes a top plate, an adjustment assembly and a second push rod; the top plate is connected to the second push rod through the adjustment assembly; the adjustment assembly is suitable for length telescopic adjustment, and the second push rod is slidably installed on the support member and driven to cooperate with the hydraulic loading assembly, so that the second push rod drives the top plate to contact the supported object at a set pressure under the drive of the hydraulic loading assembly.

8. The composite lifting device based on hydraulic loading and mechanical locking as claimed in claim 7, characterized in that: The adjustment assembly includes a screw and an inner sleeve; the screw is fixedly connected to the top plate, the inner sleeve is threadedly connected to the screw, and one end of the inner sleeve away from the top plate is fixedly connected to the second top rod.

9. The composite lifting device based on hydraulic loading and mechanical locking according to claim 1, characterized in that: The locking member is a bolt.

10. A method for using the composite lifting device based on hydraulic loading and mechanical locking according to any one of claims 1 to 9, characterized in that: The steps include: S100: Select appropriate lifting parts according to the application scenario and assemble the lifting parts and supporting parts, and select suitable locking parts; S200: installing the support member at the base point of the object to be lifted, and installing a hydraulic loading assembly at the end of the support member; S300: Loading the hydraulic loading component to the expected load through the oil pump; S400: After loading is completed, the locking member is matched and installed with the supporting member until the locking member locks the position of the lifting member; S500: After completing the installation of the locking components, remove the hydraulic loading assembly for recycling.

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