Mechanical locking and releasing mechanism, mechanical electrical connecting device and hoisting equipment

Abstract

The utility model provides a mechanical locking and releasing mechanism, a mechanical electrical connecting device and hoisting equipment, and relates to the technical field of hoisting equipment, the mechanical locking and releasing mechanism comprises two fixing seats, a conical cylinder, a locking wedge block, a positioning head and a locking rod, the number of the fixing seats is two, each fixing seat is provided with a locking surface, and the locking surfaces of the two fixing seats are attached to each other; the conical cylinder is arranged in one of the two fixing seats, an inserting opening is formed in the locking face of the fixing seat, the bottom face of the conical cylinder faces the locking face, a lock hole is formed in the axis of the conical cylinder, and the lock hole directly faces the inserting opening; the locking wedge block is arranged on the conical cylinder and the fixing base in a sliding mode, and the locking wedge block can slide in the generatrix direction of the conical cylinder and is parallel to the locking face. According to the mechanical locking and releasing mechanism, the mechanical electrical connecting device and the hoisting equipment, rapid butt joint locking and separation releasing actions can be achieved, automatic actions are achieved through direct cooperation with electric control driving, manual auxiliary butt joint or separation is not needed, and the danger of operation is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a mechanical locking and releasing mechanism, a mechanical electrical connection device, and hoisting equipment. Background Technology

[0002] Currently, some equipment is large in size, and there are situations where the lifting equipment exceeds the height or width limits during the lifting operation or transportation. It is necessary to separate and release the lifting equipment into two or more halves. However, after arriving at the equipment use site, the lifting equipment needs to be reassembled into a whole. In this way, the lifting equipment needs to be separated and released or connected and locked in place.

[0003] Currently, the mechanical docking and locking of such hoisting equipment is usually assisted by other equipment or devices for docking and positioning, and then manually docked with hooks or bolted. However, some truck-mounted hoisting equipment has problems such as high separation and release positions and narrow spaces, which makes the docking and locking position environment unfavorable to personal safety and also not efficient. Utility Model Content

[0004] In view of this, this utility model proposes a mechanical locking and releasing mechanism, a mechanical electrical connection device, and a hoisting device. The two fixed seats are the two parts of the hoisting device that need to be connected. The positioning head is inserted into the cone cylinder, and the locking wedge is inserted into the annular locking groove of the positioning head to fix the positioning head. At the same time, the locking rod is inserted into the locking hole and the cone cylinder is locked by rotation. The locking wedge is then fixed by the cone cylinder to achieve stable mechanical connection and locking. When separation and release are required, the locking rod is rotated to align with the locking hole and moves towards the cone cylinder, pushing the cone cylinder to make the locking wedge slide away from the annular locking groove, thereby releasing the positioning head and completing the separation and release action. This achieves rapid connection and locking and separation and release actions. It can be directly used with electric control drive to realize automated action without manual assistance in connection or separation, further reducing the danger of operation.

[0005] The technical solution of this utility model is implemented as follows:

[0006] On the one hand, this utility model provides a mechanical locking and releasing mechanism, including a fixed base, a cone, a locking wedge, a positioning head, and a locking rod, wherein,

[0007] There are two fixing seats, each with a locking surface, and the locking surfaces of the two fixing seats fit together.

[0008] The cone is set inside one of the two fixed seats, and the locking surface of the fixed seat has an insertion port. The bottom surface of the cone faces the locking surface, and a locking hole is opened on the axis of the cone, with the locking hole facing the insertion port.

[0009] The locking wedge is slidably disposed on the cone and the fixed base, and the locking wedge can slide along the generatrix of the cone and parallel to the locking surface;

[0010] The positioning head is fixed on the locking surface of another fixed seat and inserted into the socket of the fixed seat where the cone is located. The positioning head has an annular locking groove on its outside. The locking wedge is inserted into the annular locking groove to fix the positioning head and the fixed seat where the locking wedge is located relative to each other.

[0011] The locking rod is set on the fixed seat where the positioning head is located, and the central axis is perpendicular to the locking surface. The locking rod can rotate and move axially relative to the fixed seat where the positioning head is located. The locking rod is provided with a locking head and a supporting surface. The locking head is inserted into the lock hole and cooperates with the supporting surface to prevent the locking rod from moving axially relative to the cone. The locking head and the lock hole are adapted to each other.

[0012] When the release occurs, the locking rod rotates and aligns the lock head with the lock hole. The cone moves by pushing the abutment surface, causing the locking wedge to slide away from the annular lock groove. At the same time, the lock head leaves the lock hole, the positioning head leaves the socket, and the locking surfaces of the two fixed seats separate.

[0013] Based on the above technical solutions, preferably, it also includes a drive slide, which is slidably disposed in the fixed seat where the locking rod is located and is connected to the locking rod in a transmission manner. The fixed seat is provided with a locking position, a preparatory position and a release position. When the drive slide is in the locking position, the lock head and the lock hole are misaligned, and the cone is fixed relative to its fixed seat. When the drive slide is in the preparatory position, the lock head is facing the lock hole. When the drive slide is in the release position, the abutment surface on the locking rod pushes the cone to move away from the locking surface.

[0014] More preferably, the drive slide is provided with a pushing surface and a tightening surface. The pushing surface contacts the end of the locking rod away from the lock head. The pushing surface is used to push the locking rod toward the fixed seat where the cone is located. The locking rod also includes a limiting part. When the drive slide is in the locked position, the limiting part abuts against the tightening surface to tighten the locking rod into its fixed seat.

[0015] More preferably, the drive slide is provided with a rack, and the locking rod is provided with a mating tooth. The rack meshes with the mating tooth and drives the locking rod to rotate when the drive slide switches between the ready position and the locked position.

[0016] Based on the above technical solutions, preferably, it also includes an elastic element, which is disposed in the fixed seat where the cone is located, and one end is connected to the cone. The elastic element is used to squeeze the cone to move toward the locking surface.

[0017] Based on the above technical solutions, preferably, the cone and the locking wedge form a lock seat assembly, the positioning head and the locking rod form a lock hook assembly, and there are two lock seat assemblies and two lock hook assemblies, which are respectively set on two fixed seats.

[0018] On the other hand, this utility model provides a mechanical-electrical connection device, including a plug, a socket and the aforementioned mechanical locking and releasing mechanism. The plug and the socket are respectively mounted on two fixed seats and are arranged opposite to each other. When the locking surfaces of the two fixed seats are in contact, the plug is inserted into the socket and an electrical connection is formed.

[0019] Based on the above technical solutions, the preferred embodiment further includes two bases and two sets of protective covers, wherein...

[0020] The two bases are respectively fixed on the two fixed seats, and the plug and socket are respectively set on the two bases;

[0021] Two sets of protective covers are respectively installed on two fixed bases. The protective covers are used to cover the outside of the plug and socket after the plug and socket are separated.

[0022] Further preferably, it also includes two sets of linkage components, which are respectively disposed on two bases and are respectively connected to two sets of protective covers. Each linkage component includes a transmission part. When the two bases approach each other, the transmission parts of the two sets of linkage components abut against each other and drive the two sets of protective covers to open.

[0023] On the other hand, this utility model provides a hoisting device, including the aforementioned mechanical and electrical connection device.

[0024] The mechanical locking and releasing mechanism, mechanical and electrical connection device, and hoisting equipment of this utility model have the following advantages over the prior art:

[0025] (1) The two fixed seats are the two parts that need to be connected on the hoisting equipment. The positioning head is inserted into the cone, and the locking wedge is inserted into the annular locking groove of the positioning head to fix the positioning head. At the same time, the locking rod is inserted into the locking hole and the cone is locked by rotation. Then the locking wedge is fixed by the cone to achieve stable mechanical connection and locking. When separation and release are required, the locking rod is rotated to align with the locking hole and move towards the cone, pushing the cone to make the locking wedge slide away from the annular locking groove, thereby releasing the positioning head and completing the separation and release action. This achieves fast connection and locking and separation and release action. It can be directly used with electric control drive to realize automated action without manual assistance in connection or separation, further reducing the risk of operation.

[0026] (2) By setting a pushing surface and a tightening surface on the drive slide, and setting two inclined surfaces on the locking rod respectively, one of which is located at the end of the locking rod and contacts the pushing surface when the drive slide is in the ready position and the release position, while the other inclined surface is set on the limiting part. When the drive slide is in the locking position, the inclined surface fits the tightening surface. During the process of the drive slide moving from the ready position to the locking position, the tightening surface will squeeze the limiting part through the inclined surface, so that the locking rod is tightened in the fixed seat where the locking rod is located. During the tightening process, the cone is fixed, and the relative fixation of the cone is completed. Thus, the state switching of the locking rod under different working requirements is completed through a single structure.

[0027] (3) The mechanical and electrical connection device can make electrical connection during the mechanical docking process. When the two fixed seats approach and lock each other, the plug is inserted into the socket synchronously to form the electrical and mechanical synchronous connection of the two parts of the hoisting equipment, thereby further reducing the difficulty of manual operation and improving the operation efficiency of the hoisting equipment during assembly and separation.

[0028] (4) By setting two sets of linkage components and setting them on two bases respectively, and the two sets of linkage components are connected to two sets of protective covers respectively. The linkage components include a transmission part. When the two bases are close to each other, the transmission parts of the two sets of linkage components abut against each other and drive the two sets of protective covers to open respectively. Thus, the two sets of linkage components are used for linkage control to realize the opening and closing of the protective covers during mechanical docking and release. Attached Figure Description

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a perspective view of the mechanical locking and releasing mechanism of this utility model;

[0031] Figure 2 This is a side view of the mechanical locking and releasing mechanism of this utility model;

[0032] Figure 3 for Figure 2 Sectional view at point AA;

[0033] Figure 4 This is a schematic diagram showing the connection between the drive slide and the locking rod of the mechanical locking and releasing mechanism of this utility model;

[0034] Figure 5This is a perspective view of the locking rod of the mechanical locking and releasing mechanism of this utility model;

[0035] Figure 6 This is a perspective view of the cone-shaped cylinder of the mechanical locking and releasing mechanism of this utility model;

[0036] Figure 7 This is a perspective view of the mechanical and electrical connection device of this utility model;

[0037] Figure 8 This is a schematic diagram of the socket and plug of the mechanical and electrical connection device of this utility model;

[0038] Figure 9 This is a schematic diagram showing the separation of the socket and plug in the mechanical and electrical connection device of this utility model. Detailed Implementation

[0039] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0040] like Figure 1-6 As shown, the mechanical locking and releasing mechanism of this utility model includes a fixed base 1, a cone 2, a locking wedge 3, a positioning head 4, and a locking rod 5.

[0041] There are two fixed seats 1, each with a locking surface. The locking surfaces of the two fixed seats 1 fit together. The locking surfaces of the two fixed seats 1 are the same in shape and size and are arranged in a plane so that the two locking surfaces can fit together completely, thereby completing the mechanical docking of the two fixed seats 1. It should be noted that the two fixed seats 1 can be respectively set on the two parts of the hoisting equipment that need to be spliced. The connection of the two parts of the hoisting equipment is realized by docking the two fixed seats 1.

[0042] The cone cylinder 2 is disposed inside one of the two fixed seats 1, and the locking surface of the fixed seat 1 is provided with an insertion port. The bottom surface of the cone cylinder 2 faces the locking surface. A locking hole 201 is provided on the axis of the cone cylinder 2, and the locking hole 201 is directly opposite the insertion port. The cone cylinder 2 is cone-shaped and hollow inside with an open bottom surface. The outside of the cone cylinder 2 is hollow. The locking hole 201 is located at the top of the cone cylinder 2. In this embodiment, the shape of the locking hole 201 consists of a circle and two squares. The two squares are symmetrically arranged on both sides of the circle. In addition, a plurality of first guide protrusions are provided on the cone cylinder 2. The first guide protrusions are T-shaped and their length direction coincides with the generatrix direction on the inner wall of the cone cylinder 2.

[0043] The locking wedge 3 is slidably disposed on the cone cylinder 2 and the fixed base 1. The locking wedge 3 can slide along the generatrix of the cone cylinder 2 and parallel to the locking surface. In this embodiment, the number of locking wedges 3 is set to four and they are arranged in a ring around the center line of the insertion port. Each locking wedge 3 is provided with a first guide groove. The first guide protrusion on the cone cylinder 2 is inserted into the first guide groove so that the locking wedge 3 can slide relative to the cone cylinder 2 along its generatrix. At the same time, the locking wedge 3 is provided with a second guide protrusion, which is also T-shaped. Four second guide grooves are provided on the corresponding fixed base 1 along the radial direction of the insertion port. The second guide protrusion is inserted into the second guide groove so that the locking wedge 3 can move along the radial direction of the insertion port on the fixed base 1. When the cone cylinder 2 and the locking wedge 3 are engaged, the cone cylinder 2 moves, which can drive the locking wedge 3 to move along its generatrix. During the movement, the locking wedge 3 moves away from or closer to the insertion port.

[0044] The positioning head 4 is fixed on the locking surface of another fixed base 1 and inserted into the socket of the fixed base 1 where the cone cylinder 2 is located. The positioning head 4 has an annular locking groove 401 on its outside. The locking wedge 3 is inserted into the annular locking groove 401 to fix the positioning head 4 and the fixed base 1 where the locking wedge 3 is located relative to each other.

[0045] In this embodiment, the positioning head 4 is a columnar structure protruding on the locking surface, with its end in the shape of a frustum. The inclined surface provided on the positioning head 4 can push the four locking wedges 3 away from the insertion port when it is inserted. After the positioning head 4 is fully inserted into the insertion port, the four locking wedges 3 can lock the positioning head 4 by inserting into the annular locking groove 401, preventing it from moving axially. In order to improve the fit between the locking wedges 3 and the annular locking groove 401 on the positioning head 4, the side of the four locking wedges 3 facing the annular locking groove 401 is arranged in a near 90-degree arc shape and is adapted to the annular locking groove 401 to maximize the contact area between the locking wedges 3 and the positioning head 4 when locking the positioning head 4, thereby improving the stability of the mechanical locking.

[0046] The locking rod 5 is mounted on the fixed base 1 where the positioning head 4 is located, and its central axis is perpendicular to the locking surface. The locking rod 5 can rotate and move axially relative to the fixed base 1 where the positioning head 4 is located. The locking rod 5 is provided with a locking head 51 and a supporting surface 501. The locking head 51 is inserted into the lock hole 201 and cooperates with the supporting surface 501 to prevent the locking rod 5 from moving axially relative to the cone cylinder 2. The locking head 51 is adapted to the lock hole 201. The end of the locking head 51 is tapered, and its cross-section is the same as the shape of the lock hole 201. When the locking head 51 is aligned with the lock hole 201... After the lock head 51 passes through the lock hole 201, it can pass through the lock hole 201. Correspondingly, when the lock head 51 is misaligned with the lock hole 201, the lock head 51 cannot pass through the lock hole 201. That is to say, after the lock head 51 passes through the lock hole 501 and rotates with the lock rod 5, the lock rod 5 and the cone 2 can be locked relative to each other through the abutment surface 501 and the lock head. In addition, on the side of the cone 2 away from the lock rod 5, two limit blocks are provided. Both limit blocks are located outside the lock hole 201 to obstruct the lock head 51, so that the lock rod 5 can only rotate 90 degrees back and forth.

[0047] In this embodiment, when the release occurs, the locking rod 5 rotates and aligns the locking head 51 with the lock hole 201. The cone cylinder 2 is pushed to move by the abutment surface 501, so that the locking wedge block 3 slides away from the annular lock groove 401. At the same time, the locking head 51 leaves the lock hole 201, the positioning head 4 leaves the insertion port, and the locking surfaces of the two fixing seats 1 separate.

[0048] Conversely, during the docking and locking process, the locking rod 5 passes through the insertion port and the lock hole 201 in sequence, while the positioning head 4 opens the locking wedge block 3 and the locking head 51 rotates, so that the locking rod 5 and the cone cylinder 2 are locked relative to each other. At this time, the locking rod 5 retracts, driving the cone cylinder 2 to move, and the locking wedge block 3 inserts into the annular locking groove 401 to lock the positioning head. At this time, the locking surfaces of the two fixed seats 1 are in contact with each other, and the two fixed seats 1 complete the docking and locking.

[0049] In a preferred embodiment, a drive slide 6 is also provided. The drive slide 6 is slidably disposed in the fixed seat 1 where the locking rod 5 is located and is connected to the locking rod 5 in a transmission manner. The fixed seat 1 is provided with a locking position, a preparatory position and a release position. When the drive slide 6 is in the locking position, the lock head 51 is misaligned with the lock hole 201 and the cone 2 is fixed relative to the fixed seat 1. When the drive slide 6 is in the preparatory position, the lock head 51 is directly facing the lock hole 201. When the drive slide 6 is in the release position, the abutment surface 501 on the locking rod 5 pushes the cone 2 to move away from the locking surface.

[0050] Since the locking rod 5 needs to have three states and can switch between these three states, the drive slide 6 is used as the drive to switch between the three states of the locking rod 5. The three states of the locking rod 5 are the locked state, the ready docking state, and the released state. These three states correspond to the locking position, the ready position, and the released position of the drive slide 6 in the fixed seat 1, respectively. When the locking rod 5 is in the locked state, the locking head 51 passes through the lock hole 201 and rotates 90 degrees. The locking head 51 and the abutment surface 501 lock the cone 2. When the locking rod 5 is in the ready docking state, the locking head 51 can be inserted into the lock hole 201 and will not push the cone 2 to move, so that the locking rod 5 can be directly inserted into the lock hole 201 for docking. When the locking rod 5 is in the released state, relative to its ready docking state, it will extend a certain distance from its fixed seat 1. The abutment surface 501 pushes the cone 2 away from the locking surface, thereby driving multiple locking wedges 3 to move toward the side away from the insertion port to leave the annular lock groove 401.

[0051] Since the ready docking state of the locking lever 5 is an intermediate state between the other two states, the ready position is set between the locking position and the releasing position. By driving the slide block 6 to reciprocate, the three positions are switched, thereby changing the state of the locking lever 5.

[0052] Specifically, the drive slide 6 is provided with a pushing surface 601 and a tightening surface 602. The pushing surface 601 contacts the end of the locking rod 5 away from the locking head 51. The pushing surface 601 is used to push the locking rod 5 toward the fixed seat 1 where the cone cylinder 2 is located. The locking rod 5 also includes a limiting part 52. When the drive slide 6 is in the locked position, the limiting part 52 abuts against the tightening surface 602 to tighten the locking rod 5 into the fixed seat 1 where it is located.

[0053] The drive slide 6 has a frame-like structure. One end of the locking rod 5 extends into the interior of the drive slide 6. Two inclined surfaces are provided on the locking rod 5, which are used to engage the pushing surface 601 and the tightening surface 602, respectively. One inclined surface is located at the end of the locking rod 5 and contacts the pushing surface 601 when the drive slide 6 is in the ready position and the release position. The other inclined surface is provided on the limiting part 52. When the drive slide 6 is in the locked position, the inclined surface 602 is in contact with the tightening surface 602. Specifically, as the drive slide 6 moves from the ready position to the locked position, the tightening surface 602 will press the limiting part 52 through the inclined surface, so that the locking rod 5 is tightened towards the fixed seat 1 where the locking rod 5 is located. During the tightening process, the cone 2 is fixed, and the cone 2 is relatively fixed.

[0054] In addition, during the process of driving the slide block 6 to move from the ready position to the release position, the pushing surface 601 will cooperate with the inclined surface at the end of the locking rod 5 to push the locking rod 5 outwards towards the fixed seat 1 where it is located, thereby pushing the cone 2 to move and releasing the mechanical docking part.

[0055] Considering that the locking rod 5 needs to rotate when the drive slide 6 moves between the ready position and the locked position, and according to the structure set in this embodiment, the locking rod 5 needs to be able to rotate back and forth 90 degrees, the drive slide 6 is provided with a rack 603, and the locking rod 5 is provided with a mating tooth 502. The rack 603 meshes with the mating tooth 502, and drives the locking rod 5 to rotate when the drive slide 6 switches between the ready position and the locked position.

[0056] The center angle of the mating teeth 502 on the locking rod 5 is ninety degrees, so that the locking rod 5 can rotate back and forth ninety degrees when switching between the ready position and the locked position. It should be noted that since the relative angles of the locking rod 5 in the ready position and the locked position are different, the two inclined surfaces on the locking rod 5 are not parallel to each other.

[0057] In this embodiment, an elastic element 7 is also provided. The elastic element 7 is disposed in the fixed seat 1 where the cone cylinder 2 is located, and one end is connected to the cone cylinder 2. The elastic element 7 is used to press the cone cylinder 2 toward the locking surface. After the positioning head 4 is inserted into the socket, the elastic element 7 can press the cone cylinder 2 to move, thereby driving the locking wedge block 3 to be inserted into the annular locking groove 401. It should be noted that the locking hole 201 on the cone cylinder 2 is located between the lock head 51 and the abutment surface 501 at this time. The elastic element 7 can be a spring.

[0058] The cone 2 and the locking wedge 3 form a lock seat assembly, and the positioning head 4 and the locking rod 5 form a lock hook assembly. There are two lock seat assemblies and two lock hook assemblies, which are respectively set on two fixed seats 1.

[0059] Considering the influence of space and connection stability factors in the structural layout, a locking seat assembly and a locking hook assembly are simultaneously provided on a single fixed seat 1, so that the two fixed seats 1 can be locked through the one-to-one connection of the locking seat assembly and the locking hook assembly, thereby improving the connection stability and avoiding rotational offset at the connection point. Considering the space occupation, the locking seat assembly and the locking hook assembly can be staggered, thereby increasing the contact area of ​​the two locking surfaces.

[0060] To enable the drive slide 6 to switch back and forth between three positions, a nut is fixed on the drive slide 6, and a lead screw is set on the fixed base 1 along the direction of movement of the drive slide 6. The lead screw is threadedly connected to the nut, and the rotation of the lead screw drives the slide 6 to move laterally through the nut. At the same time, in order to enable the lead screw to be connected to the drive equipment or operated manually, a speed reducer can be set on the outside of the fixed base 1, and the output end of the speed reducer is connected to the lead screw, thereby improving the convenience of operation.

[0061] like Figure 1-9As shown, the mechanical and electrical connection device of this utility model includes a plug 8, a socket 9 and the aforementioned mechanical locking and releasing mechanism. The plug 8 and the socket 9 are respectively disposed on two fixed seats 1 and are arranged opposite to each other. When the locking surfaces of the two fixed seats 1 are in contact, the plug 8 is inserted into the socket 9 and an electrical connection is formed.

[0062] After the mechanical docking is completed, there is still an electrical connection that needs to be made. Therefore, an electrical connection structure is set up on the basis of the above-mentioned mechanical locking and releasing mechanism to form this mechanical electrical connection device. Specifically, during the process of the two fixed seats 1 approaching and locking each other, the plug 8 is simultaneously inserted into the socket 9 to form a synchronous electrical and mechanical connection between the two parts of the hoisting equipment. It should be noted that after the two locking surfaces are fully attached, the plug 8 is fully inserted into the socket 9.

[0063] In this embodiment, two bases 10 and two sets of protective covers 11 are also provided. The two bases 10 are respectively fixed on two fixed seats 1. The plug 8 and the socket 9 are respectively set on the two bases 10. The two sets of protective covers 11 are respectively set on the two fixed seats 1. The protective covers 11 are used to cover the outside of the plug 8 and the socket 9 after the plug 8 and the socket 9 are separated.

[0064] Two bases 10 are fixed to the outside of two fixed seats 1 respectively, and are on the same straight line in the docking direction. Each base 10 includes a protective shell. The outer surface of the protective shell is spherical and has an opening on one side. The openings of the two protective shells are arranged facing each other. The plug 8 and the socket 9 are respectively embedded in the opening side of the two protective shells. In order to achieve accurate docking of the plug 8 and the socket 9, positioning pins and positioning sleeves are respectively provided on the two protective shells to achieve positioning of the plug 8 and the socket 9 before and after docking.

[0065] The protective cover 11 includes two protective components. The curvature of the two protective components is consistent with the curvature of the protective shell. Both ends of the protective components are hinged to the outside of the protective shell. The connecting line at the hinge point passes through the center of the protective shell. After the two protective components are closed onto the protective shell, the opening of the protective shell can be completely closed, thereby protecting the plug 8 and the socket 9.

[0066] In this embodiment, the protective cover 11 is closed on the base 10 when the two fixed seats 1 are separated. When the two fixed seats 1 approach each other for docking, the protective cover 11 opens to allow the plug 8 to dock with the socket 9, thereby achieving synchronous docking of mechanical and electrical components.

[0067] In order to enable the two sets of protective covers 11 to open synchronously when docking and close synchronously when separating to protect the plug 8 and socket 9, as a preferred embodiment, two sets of linkage components 12 are also provided. The two sets of linkage components 12 are respectively disposed on two bases 10, and the two sets of linkage components 12 are respectively connected to the two sets of protective covers 11. The linkage component 12 includes a transmission part 121. When the two bases 10 approach each other, the transmission parts 121 of the two sets of linkage components 12 abut against each other and drive the two sets of protective covers 11 to open.

[0068] The opening and closing of the protective cover 11 are achieved through linkage control of two sets of linkage components 12. Specifically, the two linkage components 12 form a set. The linkage component 12 also includes a linkage rod and a base rod. The transmission part 121 is sleeved on the outside of the base rod and can slide outside the base rod. A spring connected to the transmission part 121 is provided on the base rod. There are two linkage rods, which are respectively hinged to the two protective parts of the protective cover 11.

[0069] Each base 10 is provided with a set of linkage components 12, and the transmission parts 121 of the two sets of linkage components 12 are located on the same straight line. When the two fixed seats 1 approach each other, the transmission parts 121 of the two sets of linkage components 12 contact each other and squeeze each other. The transmission parts 121 move relative to the fixed seat 1, thereby driving the linkage rod to rotate. Then, under the push of the linkage rod, the protective cover 11 is opened, so as to realize the automatic opening of the protective cover 11 during the docking process. Conversely, under the action of the spring, when separating, the spring pushes the transmission part 121 to reset, so that the protective cover 11 closes again.

[0070] In addition, a protective cover is provided on one of the two bases 10. The protective cover is cylindrical and completely covers the outside of the two protective shells after the two bases 10 are connected, so as to protect the connected electrical parts from external influences and further improve the connection stability.

[0071] The hoisting equipment of this utility model includes the aforementioned mechanical and electrical connection device, which realizes the mechanical and electrical connection between the two parts, thereby completing the docking and separation operation with high efficiency and high safety.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical locking and releasing mechanism, characterized in that: It includes a fixed base (1), a cone (2), a locking wedge (3), a positioning head (4), and a locking rod (5), wherein, There are two fixing seats (1), and each of them has a locking surface. The locking surfaces of the two fixing seats (1) fit together. The cone (2) is set inside one of the two fixed seats (1), and the locking surface of the fixed seat (1) is provided with an insertion port. The bottom surface of the cone (2) faces the locking surface. The axis of the cone (2) is provided with a locking hole (201), and the locking hole (201) is directly opposite the insertion port. The locking wedge (3) is slidably disposed on the cone (2) and the fixed seat (1). The locking wedge (3) can slide along the generatrix of the cone (2) and parallel to the locking surface. The positioning head (4) is fixed on the locking surface of another fixed seat (1) and inserted into the socket of the fixed seat (1) where the cone (2) is located. The positioning head (4) has an annular locking groove (401) on its outside. The locking wedge (3) is inserted into the annular locking groove (401) to fix the positioning head (4) and the fixed seat (1) where the locking wedge (3) is located relative to each other. The locking rod (5) is set on the fixed seat (1) where the positioning head (4) is located, and the central axis is perpendicular to the locking surface. The locking rod (5) can rotate and move axially relative to the fixed seat (1) where the positioning head (4) is located. The locking rod (5) is provided with a locking head (51) and a supporting surface (501). The locking head (51) is inserted into the lock hole (201) and cooperates with the supporting surface (501) to prevent the locking rod (5) from moving axially relative to the cone (2). The locking head (51) and the lock hole (201) are compatible. When the separation is released, the locking rod (5) rotates and the locking head (51) is aligned with the lock hole (201). The cone (2) is pushed to move by the abutment surface (501) so that the locking wedge (3) slides away from the annular lock groove (401). At the same time, the locking head (51) leaves the lock hole (201), the positioning head (4) leaves the socket, and the locking surfaces of the two fixing seats (1) separate.

2. The mechanical locking and releasing mechanism as described in claim 1, characterized in that: It also includes a drive slide (6), which is slidably disposed in the fixed seat (1) where the locking rod (5) is located and is connected to the locking rod (5) in a transmission manner. The fixed seat (1) is provided with a locking position, a preparatory position and a release position. When the drive slide (6) is in the locking position, the lock head (51) and the lock hole (201) are misaligned, and the cone (2) is fixed relative to its fixed seat (1). When the drive slide (6) is in the preparatory position, the lock head (51) is facing the lock hole (201). When the drive slide (6) is in the release position, the abutment surface (501) on the locking rod (5) pushes the cone (2) to move away from the locking surface.

3. The mechanical locking and releasing mechanism as described in claim 2, characterized in that: The drive slide (6) is provided with a pushing surface (601) and a tightening surface (602). The pushing surface (601) contacts the end of the locking rod (5) away from the lock head (51). The pushing surface (601) is used to push the locking rod (5) toward the fixed seat (1) where the cone (2) is located. The locking rod (5) also includes a limiting part (52). When the drive slide (6) is in the locked position, the limiting part (52) abuts against the tightening surface (602) to tighten the locking rod (5) into the fixed seat (1) where it is located.

4. The mechanical locking and releasing mechanism as described in claim 2, characterized in that: The drive slide (6) is provided with a rack (603) and the locking rod (5) is provided with a mating tooth (502). The rack (603) meshes with the mating tooth (502) and drives the locking rod (5) to rotate when the drive slide (6) switches between the ready position and the locked position.

5. The mechanical locking and releasing mechanism as described in claim 1, characterized in that: It also includes an elastic element (7), which is disposed in the fixed seat (1) where the cone (2) is located, and one end is connected to the cone (2). The elastic element (7) is used to squeeze the cone (2) to move toward the locking surface.

6. The mechanical locking and releasing mechanism as described in claim 1, characterized in that: The cone (2) and the locking wedge (3) form a lock seat assembly, and the positioning head (4) and the locking rod (5) form a lock hook assembly. There are two lock seat assemblies and two lock hook assemblies, and they are respectively set on two fixed seats (1).

7. A mechanical-electrical connection device, characterized in that: The device includes a plug (8), a socket (9), and a mechanical locking and releasing mechanism as described in any one of claims 1-6. The plug (8) and the socket (9) are respectively disposed on two fixed seats (1) and are disposed opposite to each other. When the locking surfaces of the two fixed seats (1) are in contact, the plug (8) is inserted into the socket (9) and an electrical connection is formed.

8. The mechanical and electrical connection device as described in claim 7, characterized in that: It also includes two bases (10) and two sets of protective covers (11), wherein, Two bases (10) are fixed on two fixed seats (1) respectively, and the plug (8) and socket (9) are respectively set on the two bases (10); Two sets of protective covers (11) are respectively set on two fixed bases (1). The protective covers (11) are used to cover the outside of the plug (8) and socket (9) after the plug (8) and socket (9) are separated.

9. The mechanical and electrical connection device as described in claim 8, characterized in that: It also includes two sets of linkage components (12), which are respectively set on two bases (10) and are respectively connected to two sets of protective covers (11). The linkage component (12) includes a transmission part (121). When the two bases (10) approach each other, the transmission parts (121) of the two sets of linkage components (12) abut against each other and drive the two sets of protective covers (11) to open respectively.

10. A hoisting device, characterized in that: Includes the mechanical and electrical connection device according to any one of claims 7-9.

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