Labor-saving and simple automatic anchoring device for gantry crane

Abstract

The utility model discloses a labor saving simple operation's portal crane automatic anchor device, base shell assembly inside swing joint has drive mechanism assembly, drive mechanism assembly is locked and is unlocked movement through drive arrangement drive anchor pin up and down movement, the base shell assembly inside is provided with hollow mounting groove, hollow mounting groove is fixedly connected with energy storage guiding device, the energy storage guiding device hollow setting inside carries anchor pin, and the beneficial effect of this application is that one is simple structure, and the reliability is high, and the operation is convenient and simple, two are efficient convenient: avoid the common jam, not in place etc. of traditional anchor device, further guarantee the accuracy and safety of portal crane anchoring, three are structure modularization, and energy storage guiding device is modularization product, and the replaceability is high after the breakdown, four are this patent low cost, and the versatility is strong, can be used repeatedly, has extensive application prospect.

Description

Technical Field

[0001] This utility model relates to the technical field of anchoring devices for lifting equipment, and in particular to an automatic anchoring device for a gantry crane that is labor-saving and easy to operate. Background Technology

[0002] Gantry cranes play a crucial role in modern industrial production, port terminals, and hydropower station projects, serving as vital components for material handling and equipment hoisting. Their reliability and stability are paramount for safe production. A gantry crane has a portal frame structure with outriggers connected to the main beam, allowing it to travel directly on ground tracks. To prevent uncontrollable factors such as strong winds from affecting the safety of the crane when not in operation, anchoring devices are required on the trolley traveling mechanism. Gantry crane anchoring devices are generally divided into manual and automatic types. Manual anchoring is achieved through direct manual operation, while automatic anchoring is driven by an electric or hydraulic cylinder in conjunction with a control system.

[0003] Many operations in the production and operation of hydropower stations require the assistance of gantry cranes, and the safety of these cranes is directly related to the safe production of the hydropower station. Currently, due to limitations in manufacturing time, reliability, economic costs, and site environment, the anchoring devices equipped on hydropower station gantry cranes are mainly manually anchored. Operators rotate a handle to screw in the bolt, thereby locking the anchoring mechanism in place. Releasing the anchor requires the operator to rotate the handle in the opposite direction, a repetitive and time-consuming process. Furthermore, the outdoor environment of gantry cranes makes components susceptible to corrosion and accelerated wear, leading to jamming and misalignment of the existing bolt drive mechanism, further increasing the difficulty of manual anchoring. Automatic anchoring devices are generally more complex in structure, prone to failure under prolonged use or complex operating conditions, and require significant maintenance, resulting in lower reliability. In addition, automatic anchoring devices have high reliability requirements for the electrical control system, hydraulic system, and sensing system, and are easily affected by extreme weather conditions such as high temperatures or extreme cold, rendering them unable to function properly.

[0004] In summary, existing gantry crane anchoring devices are insufficient to efficiently, reliably, and economically meet the safety and stability anchoring requirements under different working conditions. There is an urgent need for a new type of gantry crane anchoring device to solve these problems. Utility Model Content

[0005] This utility model patent aims to address the shortcomings of existing technologies by providing an automatic anchoring device for gantry cranes, overcoming the problems of jamming, time-consuming and labor-intensive operation of traditional manual anchoring devices, and the complexity and instability of automatic anchoring device systems.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic anchoring device for a gantry crane that is labor-saving and easy to operate, including a base shell assembly disposed at the top of the ground pit, the side of the base shell assembly being fixedly connected to the gantry crane trolley traveling mechanism, a transmission mechanism assembly being movably connected inside the base shell assembly, the transmission mechanism assembly driving the anchor pin to move up and down for locking and unlocking movement through a drive device, a hollow mounting groove being provided inside the base shell assembly, an energy storage guide device being fixedly connected inside the hollow mounting groove, and an anchor pin being mounted inside the hollow energy storage guide device.

[0007] Preferably, the base housing assembly includes a base box, and a base connecting and fixing plate is provided on the side of the base box for connecting the gantry crane traveling mechanism. The base box is hollow inside, and the top plate and bottom plate of the base box are respectively provided with a base top bolt through hole and a base bottom bolt through hole for fixing and connecting the energy storage guide device.

[0008] Preferably, the base housing has symmetrical bearing mounting seats on its inner side, and symmetrical slots are cut on the lower side of the base housing away from the fixed plate for the movement of the transmission mechanism assembly. A protective cover is fixedly connected to the top of the base housing to protect the transmission mechanism assembly and the energy storage guide device.

[0009] Preferably, the transmission mechanism assembly includes two linear slide rails symmetrically arranged inside the base housing, two sets of sliders are provided on the linear slide rails, separate shaft supports are installed on the sliders, and a sliding frame is provided between the separate shaft supports.

[0010] Preferably, the sliding frame includes two long frames arranged horizontally in the upper and lower directions, which are fixedly connected by short frames in the vertical direction. Short shafts are provided at both ends of the long frames. The four short shafts of the sliding frame are fixedly connected to four sets of separate shaft supports. A support frame is integrally provided on the side of the upper long frame of the sliding frame. The support frame is fixedly connected to the anchoring pin connector by a connecting pin shaft. The anchoring pin connector is used to fix the anchoring pin.

[0011] Preferably, the drive device includes a first bearing mounted on two short shafts of the sliding frame located on the lower long side frame. A first connecting rod is sleeved on the outer ring of the first bearing. A second connecting rod is hinged to one end of the first connecting rod. A through hole is opened in the middle of the second connecting rod. A second bearing is disposed in the through hole. The second bearing is fixedly connected to a bearing mounting seat. A straight groove connecting rod is connected to the end of the second connecting rod away from the first connecting rod through a straight groove pin. A pedal is hinged to one end of the straight groove connecting rod through a damping hinge.

[0012] Preferably, the energy storage guiding device includes a sleeve, which is hollow and has a double-layer structure. The bottom of the sleeve is fixedly connected to the bottom bolt through hole of the base through a bolt mounting through hole. An energy storage spring is placed between the inner and outer layers of the sleeve. A retaining ring is placed on the top of the energy storage spring. The top of the anchoring pin is fixedly connected to the anchoring pin connector through a threaded hole.

[0013] Preferably, the inner layer of the sleeve is provided with four symmetrical guide grooves, the anchor pin is provided with symmetrical guide shoulders, the guide shoulders are just embedded in the guide grooves and located at the top of the retaining ring, and the top of the sleeve is fixedly connected with a sleeve end cap, which is fixedly connected to the bolt through hole at the top of the base.

[0014] Preferably, the driving device is further provided with a limiting device, which includes two sets of limiting slide grooves symmetrically arranged on the base housing on the side away from the base connecting fixing plate, and the limiting slide grooves are slidably engaged with the straight groove connecting rod.

[0015] Preferably, the straight groove connecting rod is a T-shaped structure, with symmetrical T-shaped pins on the ribs that slide in conjunction with the limiting groove. An upper limit block and a lower limit block are respectively installed at the top and bottom of the straight groove connecting rod. An anchoring and locking hole is provided at the upper position on the limiting groove, and an unlocking and locking hole is provided at the lower position on the limiting groove. The anchoring and locking hole and the unlocking and locking hole can be locked by locking pins.

[0016] The beneficial effects of this utility model are:

[0017] The advantages of this application are: firstly, its simple structure, high reliability, and convenient operation; secondly, its high efficiency and convenience: the automatic anchoring function of this device changes the cumbersome operation mode of traditional manual anchoring, eliminating the need for operators to perform high-intensity physical labor such as repeated handle rotation, and avoiding common problems such as jamming and incomplete positioning in traditional anchoring devices, further ensuring the accuracy and safety of gantry crane anchoring; thirdly, its modular structure, with the energy storage and guiding device being a modular product, ensuring high replaceability after failure; and fourthly, the low cost, strong versatility, and reusability of this patent, giving it broad application prospects. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a half-section view of the base shell structure;

[0021] Figure 3 This is a schematic diagram of the transmission mechanism assembly;

[0022] Figure 4 This is a schematic diagram of an energy storage guidance device;

[0023] Figure 5 This is a schematic diagram of the limit protection assembly;

[0024] Figure 6 This is a schematic diagram of the anchored and positioned state.

[0025] Figure 7 A schematic diagram illustrating the anchored and positioned state;

[0026] Figure 8 This is an enlarged view of the connection relationship between the linear guide rail, slider, and split shaft support of this device;

[0027] In the diagram: 1. Base housing assembly; 101. Base box; 102. Base connecting and fixing plate; 103. Top bolt through hole of base; 104. Bottom bolt through hole of base; 105. Bearing mounting seat; 106. Protective cover; 2. Transmission mechanism assembly; 201. Linear slide rail; 202. Slider; 203. Separable shaft support; 204. Sliding frame; 205. Connecting pin; 206. Anchoring pin connector; 207. First bearing; 208. First connecting rod; 209. Second bearing; 210. Second connecting rod; 211. Straight groove connecting rod; 212. Straight groove pin; 213. Damping hinge; 214. Pedal; 3. Energy storage guide device; 301. Sleeve; 302. Anchor pin; 303. Energy storage spring; 304. Retaining ring; 305. Sleeve end cap; 306. Guide shoulder; 4. Limiting device; 401. Limiting groove; 402. Upper limit block; 403. Lower limit block; 404. Locking pin; 5. Ground pit. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1As shown, an automatic anchoring device for a gantry crane that is labor-saving and easy to operate is characterized by comprising a base shell assembly 1 disposed at the top of the ground pit 5. The side of the base shell assembly 1 is fixedly connected to the gantry crane's trolley traveling mechanism. A transmission mechanism assembly 2 is movably connected inside the base shell assembly 1. The transmission mechanism assembly 2 drives the anchor pin 302 to move up and down for locking and unlocking movements via a drive device. A hollow mounting groove is provided inside the base shell assembly 1, and an energy storage guide device 3 is fixedly connected inside the hollow mounting groove. The energy storage guide device 3 is hollow and contains an anchoring pin 302. In this embodiment, the ground pit 5 is a conventional technical solution in the field. An anchoring hole is provided in the central area of ​​the ground pit 5 for the insertion of the anchoring pin. The base shell assembly 1 can be connected to the gantry crane traveling mechanism by welding or threaded connection. The base body is provided with mechanical through holes and threaded holes for installing the energy storage guide device. The energy storage guide device can be placed in the through holes of the base, and then the base and the energy storage guide device can be fixed together by bolt connection to ensure the safety and reliability of the anchoring process. The base box is provided with a protective cover to protect the transmission device and other mechanisms from the influence of harsh environment. The transmission mechanism assembly is installed inside the base box and is the main device for lifting the anchoring pin when the operator releases the anchor. It is used to receive external driving force and transmit power to the anchoring pin to release the anchor. The transmission mechanism includes a linear motion mechanism and a linkage mechanism, featuring simple operation, labor-saving, reliable and safe operation. The energy storage and guiding device is a modular, customized product with a double-layer sleeve as its main structure. An energy storage spring is installed inside the double-layer sleeve for energy storage and buffering during the automatic anchoring process. Symmetrical guide grooves are provided on the inner wall of the sleeve, cooperating with the guide shoulder of the anchoring pin for guiding the automatic anchoring process. The limit protection assembly, located on the front panel of the base, is used for limiting and protecting the anchoring pin when it is in place or released, preventing accidental contact or misoperation, effectively ensuring the anchoring pin is in the anchored or released position, and guaranteeing the safety of the gantry crane.

[0030] Preferably, such as Figure 2 As shown, the base housing assembly 1 includes a base box 101. A base connecting and fixing plate 102 is provided on the side of the base box 101 for connecting the gantry crane traveling mechanism. The base box 101 is hollow inside. The top and bottom plates of the base box 101 are respectively provided with a base top bolt through hole 103 and a base bottom bolt through hole 104 for fixing the energy storage guide device 3. In this embodiment, the base box 101 is an integrated box-shaped structure composed of multiple steel plates. Its side (back) is provided with a base connecting and fixing plate 102 for fixing to the gantry crane. A through hole or slot is opened in the middle for installing the energy storage guide device 3. The top and bottom plates are respectively provided with a base top bolt through hole 103 and a base bottom bolt through hole 104, and the base 1 and energy storage guide device 3 are effectively fixed together by bolts.

[0031] Preferably, such as Figure 2 As shown, the base housing 101 has symmetrical bearing mounting seats 105 on its inner side. The base housing 101 has symmetrical slots on the side away from the fixed plate 102 at the lower position for the movement of the transmission mechanism assembly 2. The top of the base housing 101 is fixedly connected to a protective cover 106 to protect the transmission mechanism assembly 2 and the energy storage guide device 3. In this embodiment, the base housing 101 has symmetrical bearing mounting seats 105 on its inner side for mounting the second bearing 209; the lower side of the front panel of the housing has symmetrical slots for the movement of the transmission mechanism 2 and is equipped with a limiting device 4; the top of the housing 101 is fixedly connected to a protective cover 106 to protect the transmission mechanism 2 and the energy storage guide device 3.

[0032] Preferably, such as Figure 3 As shown, the transmission mechanism assembly 2 includes two linear slide rails 201 symmetrically arranged inside the base housing 101. Two sets of sliders 202 are provided on the linear slide rails 201. Separate shaft supports 203 are installed on the sliders 202. A sliding frame 204 is provided between the separate shaft supports 203. In this embodiment, the two linear slide rails 201 are specifically installed inside the base housing 101 on the side near the fixed plate 102. Each slide rail 201 is fitted with two sliders 202, and the separate shaft supports 203 are fixedly connected to the sliders 202.

[0033] Preferably, such as Figure 3 As shown, the sliding frame 204 includes two long frames arranged horizontally in the upper and lower directions. The long frames are fixedly connected to each other by short frames in the vertical direction. Short shafts are provided at both ends of the long frames. The four short shafts of the sliding frame 204 are fixedly connected to four sets of separate shaft supports 203 respectively. A support frame is integrally provided on the side of the upper long frame of the sliding frame 204. The support frame is fixedly connected to the anchoring pin connector 206 through the connecting pin shaft 205. The anchoring pin connector 206 is used to fix the anchoring pin 302. In this embodiment, the sliding frame 204 is a frame structure, including two long side frames and two vertical short frames. The long side frames are arranged vertically, and short shafts are provided at both ends. The short shafts at both ends are fixedly connected to the separate shaft supports 20 on the two symmetrical sliders 202.

[0034] Preferably, the driving device includes a first bearing 207 respectively mounted on two short shafts of the lower long side frame of the sliding frame 204. A first connecting rod 208 is sleeved on the outer ring of the first bearing 207. A second connecting rod 210 is hinged to one end of the first connecting rod 208. A through hole is opened in the middle of the second connecting rod 210. A second bearing 209 is disposed in the through hole. The second bearing 209 is fixedly connected to the bearing mounting seat 105. A straight groove connecting rod 211 is connected to the end of the second connecting rod 210 away from the first connecting rod 208 through a straight groove pin 212. A pedal 214 is hinged to one end of the straight groove connecting rod 211 through a damping hinge 213. In this embodiment, the first bearing 207 is respectively mounted on the two short shafts on the lower side of the long side frame of the sliding frame 204. The outer ring of the first bearing 207 cooperates with the first connecting rod 208. The first connecting rod 208 is hinged to the ear plate at one end of the second connecting rod 210. Specifically, the second connecting rod 210 has a hole in its middle for external engagement with the second bearing 209. The other end of the second connecting rod 210 is effectively connected to the slot of the straight connecting rod 211 via a straight slotted pin 212. The straight connecting rod 211 has a T-shaped structure, with symmetrical T-shaped pins on its ribs that engage with the limiting slide groove 401. The short end of the straight connecting rod 211 is bolted to the damping hinge 213, forming a door hinge structure with the pedal 214, which receives external driving force from the operator.

[0035] Preferably, such as Figure 4 As shown, the energy storage guiding device 3 includes a sleeve 301, which is hollow and has a double-layer structure. The bottom of the sleeve 301 is fixedly connected to the bottom bolt through hole 104 of the base through a bolt mounting through hole 30101. An energy storage spring 303 is placed between the inner and outer layers of the sleeve 301, and a retaining ring 304 is placed on the top of the energy storage spring 303. The top of the anchoring pin 302 is fixedly connected to the anchoring pin connector 206 through a threaded hole 30201. In this embodiment, the sleeve 301 has a double-layer structure, with the energy storage spring 303 placed between the inner and outer layers, and the retaining ring 304 placed on the energy storage spring 303. The top of the anchoring pin 302 has a threaded hole 30201 for fixing to the anchoring pin connector 206.

[0036] Preferably, the inner layer of the sleeve 301 is provided with four symmetrical guide grooves 30102, and the anchoring pin 302 is provided with symmetrical guide shoulders 306. The guide shoulders 306 are just embedded in the guide grooves 30102 and located at the top of the retaining ring 304. The top of the sleeve 301 is fixedly connected to the sleeve end cap 305, and the sleeve end cap 305 is fixedly connected to the bolt through hole 103 at the top of the base. In this embodiment, the inner wall of the sleeve is provided with four symmetrical guide grooves 30102, and the anchoring pin 302 is provided with symmetrical guide shoulders 306, which can cooperate with the guide grooves 30102 to achieve guiding sliding. Finally, the sleeve end cap 305 is assembled with the sleeve 301, and is effectively fixedly connected to the bolt through hole at the end cap and the bolt through hole 103 at the top of the base, so as to achieve reliable connection between the energy storage guide device and the base.

[0037] Preferably, such as Figure 5 As shown, the driving device is also provided with a limiting device. The limiting device includes two sets of limiting slide grooves 401 symmetrically arranged on the base box 101 away from the base connecting fixing plate 102. The limiting slide grooves 401 are slidably engaged with the straight groove connecting rod 211. In this embodiment, the limiting slide grooves 401 are fixed to the lower side (front) of the base box 101 and cooperate with the straight groove connecting rod 211 to slide. Specifically, in this embodiment, a symmetrical groove is first opened on the lower position of the base box 101 away from the fixing plate 102. Two sets of limiting slide grooves 401 can be provided and respectively arranged on the two sides of the groove. The straight groove connecting rod 211 passes through the groove and extends outward. The straight groove connecting rod 211 simultaneously cooperates with the limiting slide grooves 401 on both the inner and outer sides of the base box 101 to slide.

[0038] Preferably, the straight groove connecting rod 211 has an overall T-shaped structure, with symmetrical T-shaped pins on the ribs that slide in conjunction with the limiting groove 401. An upper limiting block 402 and a lower limiting block 403 are respectively installed at the top and bottom of the straight groove connecting rod 211. An anchoring locking hole 40101 is provided at the upper position on the limiting groove 401, and a release locking hole 40102 is provided at the lower position on the limiting groove 401. The anchoring locking hole 40101 and the release locking hole 40102 can be locked by locking pins 404. In this embodiment, specifically as follows... Figure 5 As shown, the straight groove connecting rod 211 has an overall T-shaped structure, with symmetrical T-shaped pins on its ribs. These T-shaped pins engage with the limiting grooves 401 on both the inner and outer surfaces of the base housing 101 to achieve sliding. Simultaneously, upper limit blocks 402 and lower limit blocks 403 are respectively provided above and below the straight groove connecting rod 211. These limit blocks can move synchronously within the limiting grooves with the straight groove connecting rod 211. When the gantry anchoring pin 302 is anchored in place, the locking pin 404 locks the upper and lower limit blocks at the anchoring locking hole 40101 position. Figure 6As shown. When the gantry crane anchor pin 302 is released and put into place, the locking pin 404 locks the upper and lower limit blocks at the position of the release locking hole 40102, as shown. Figure 7 As shown.

[0039] The specific working method of this application: The transmission mechanism assembly is used to release the anchor. When it is necessary to release the gantry crane anchor, the operator unlocks the limiting device of the transmission mechanism, steps on the pedal 214 and moves it downward, causing the straight groove connecting rod 211 to slide downward together, further transmitting power to the second connecting rod 210. Under the force on one end of the second connecting rod 210, it will rotate around the second bearing 209 and transmit power to the first connecting rod 208. Under the rotation of the second connecting rod 210, the first connecting rod 208 will rotate and move upward, causing the slider 202 to move upward along the linear slide rail 201. At this time, the sliding frame 204 moves upward as a whole. The upward movement of the sliding frame 204 causes the anchor pin connector 206 to move, thereby moving the anchor pin 302 upward and releasing the gantry crane anchor.

[0040] Specifically, the second link 210 acts as a force-saving lever during rotation, working with the linear motion module to release the anchor. The energy storage spring 303 can also convert its stored potential energy into part of the initial power, achieving further force saving.

[0041] After anchoring and unanchoring are completed, the pedal 214 can be folded away to further reduce the space occupied by the device and prevent accidental contact or misoperation.

[0042] When the gantry crane is in place and anchoring is required, the anchoring pin 302 will descend due to its own weight after the limiting device 4 is released. The force is transmitted to the retaining ring 304 via the guide shoulder 306. The retaining ring 304 moves downward and compresses the energy storage spring 303. During this process, the guide shoulder 306 cooperates with the guide groove 30102 to achieve directional sliding. The maximum elastic force of the compressed energy storage spring 303 is less than the weight of the anchoring pin, thus enabling automatic anchoring and storing part of the anchoring pin's gravitational potential energy as elastic potential energy. This provides initial energy for releasing the anchor, achieving effortless anchor release. The entire anchoring process requires no external power source such as electricity or hydraulic pressure; the ingenious design and interaction of the mechanical structure itself ensure the reliability and durability of the locking mechanism.

[0043] When anchoring is required, the anchoring pin 302 is in the unlocked and positioned state, and the locking pin 404 is located at the unlocked locking hole 40102. Figure 7As shown. The operator first pulls out the locking pin 404 of the upper limit block 402. The anchoring pin 302 will automatically anchor due to its own weight. After anchoring, the locking pin 404 of the upper limit block 402 is inserted. Then, the lower limit block 403 is moved and locked to the anchoring locking hole 40101 to ensure reliable anchoring.

[0044] When it is necessary to release the anchor, the anchor pin 302 is in the anchored position, and the locking pin 404 is located at the anchored locking hole 40101. Figure 6 As shown. The operator first pulls out the locking pin 404 of the lower limit block 403, then moves the anchoring pin 302 upward by stepping on the pedal 214 to release the anchor. After the anchor is released and in place, the locking pin 404 of the lower limit block 403 is inserted. Subsequently, the upper limit block 402 is moved and locked to the release and positioning locking hole 40102 to ensure reliable release and positioning.

[0045] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An automatic anchoring device for a gantry crane that is labor-saving and easy to operate, characterized in that, The base housing assembly (1) is set on the top of the ground pit (5). The side of the base housing assembly (1) is fixedly connected to the gantry crane traveling mechanism. The transmission mechanism assembly (2) is movably connected inside the base housing assembly (1). The transmission mechanism assembly (2) drives the anchor pin (302) to move up and down for locking and unlocking through a drive device. The base housing assembly (1) has a hollow mounting groove inside. An energy storage guide device (3) is fixedly connected inside the hollow mounting groove. The energy storage guide device (3) is hollow and has an anchor pin (302) inside.

2. A labor-saving and easy-to-operate automatic anchoring device for a portal crane according to claim 1, characterized in that: The base housing assembly (1) includes a base box (101). The base box (101) has a base connection fixing plate (102) on its side for connecting the gantry crane traveling mechanism. The base box (101) is hollow inside. The top plate and bottom plate of the base box (101) are respectively provided with a base top bolt through hole (103) and a base bottom bolt through hole (104) for fixing and connecting the energy storage guide device (3).

3. A labor-saving and easy-to-operate automatic anchoring device for a portal crane according to claim 2, characterized in that: The base housing (101) has symmetrical bearing mounting seats (105) on its inner side. The base housing (101) has symmetrical slots on the side away from the fixed plate (102) at the lower position for the movement of the transmission mechanism assembly (2). The base housing (101) has a protective cover (106) fixedly connected to the top for protecting the transmission mechanism assembly (2) and the energy storage guide device (3).

4. A labor-saving and easy-to-operate automatic anchoring device for a portal crane according to claim 3, characterized in that: The transmission mechanism assembly (2) includes two linear slide rails (201) symmetrically arranged inside the base housing (101). Two sets of sliders (202) are provided on the linear slide rails (201). Separate shaft supports (203) are installed on the sliders (202). A sliding frame (204) is provided between the separate shaft supports (203).

5. A labor saving and easy to operate portal crane automatic anchoring device according to claim 4, characterized in that: The sliding frame (204) includes two long frames arranged horizontally in the upper and lower directions. The long frames are fixedly connected by short frames in the vertical direction. Short shafts are provided at both ends of the long frames. The four short shafts of the sliding frame (204) are fixedly connected to four sets of separate shaft supports (203). A support frame is integrally provided on the side of the upper long frame of the sliding frame (204). The support frame is fixedly connected to the anchoring pin connector (206) through the connecting pin shaft (205). The anchoring pin connector (206) is used to fix the anchoring pin (302).

6. A labor-saving and easy-to-operate automatic anchoring device for a portal crane according to claim 5, characterized in that, The drive device includes a first bearing (207) mounted on two short shafts of the lower long side frame of the sliding frame (204). The outer ring of the first bearing (207) is fitted with a first connecting rod (208). One end of the first connecting rod (208) is hinged to a second connecting rod (210). A through hole is opened in the middle of the second connecting rod (210). A second bearing (209) is installed in the through hole. The second bearing (209) is fixedly connected to the bearing mounting seat (105). The end of the second connecting rod (210) away from the first connecting rod (208) is connected to a straight groove connecting rod (211) through a straight groove pin (212). One end of the straight groove connecting rod (211) is hinged to a pedal (214) through a damping hinge (213).

7. A labor saving and easy to operate portal crane automatic anchoring device according to claim 3, characterized in that: The energy storage guiding device (3) includes a sleeve (301), which is hollow and has a double-layer structure. The bottom of the sleeve (301) is fixedly connected to the bottom bolt through hole (104) of the base through a bolt mounting through hole (30101). An energy storage spring (303) is placed between the inner and outer layers of the sleeve (301). A retaining ring (304) is placed on the top of the energy storage spring (303). The top of the anchoring pin (302) is fixedly connected to the anchoring pin connector (206) through a threaded hole (30201).

8. The automatic anchoring device for a gantry crane that is labor-saving and easy to operate according to claim 7, characterized in that: The inner layer of the sleeve (301) is provided with four symmetrical guide grooves (30102), and the anchor pin (302) is provided with symmetrical guide shoulders (306). The guide shoulders (306) are just embedded in the guide grooves (30102) and located at the top of the retaining ring (304). The top of the sleeve (301) is fixedly connected with a sleeve end cap (305), and the sleeve end cap (305) is fixedly connected with the bolt through hole (103) at the top of the base.

9. A labor saving and easy to operate portal crane automatic anchoring device according to claim 4, characterized in that: The drive device is also provided with a limiting device, which includes two sets of limiting slide grooves (401) symmetrically arranged on the base box (101) on the side away from the base connecting fixing plate (102). The limiting slide grooves (401) are slidably engaged with the straight groove connecting rod (211).

10. A labor saving and easy to operate portal crane automatic anchoring device according to claim 9, characterized in that: The straight groove connecting rod (211) has a T-shaped structure. The rib is provided with a symmetrical T-shaped pin that slides in cooperation with the limiting slide groove (401). The top and bottom of the straight groove connecting rod (211) are respectively equipped with an upper limit block (402) and a lower limit block (403). The limiting slide groove (401) has an anchoring and locking hole (40101) at the upper position and an unlocking and locking hole (40102) at the lower position. The anchoring and locking hole (40101) and the unlocking and locking hole (40102) can be locked by a locking pin (404).

Images