Quick-change locking device based on earthquake emergency rescue and loading equipment

Abstract

The invention provides a quick-change locking device based on earthquake emergency rescue and loading equipment, and relates to the technical field of emergency rescue equipment.The quick-change locking device based on earthquake emergency rescue comprises an upper connecting block, a first telescopic rod is connected with a telescopic assembly, one end of the telescopic assembly is connected with a movable lock hook, and the other end of the telescopic assembly is connected with a second connecting block; and the other end is connected with the first telescopic rod. According to the quick-change locking device based on earthquake emergency rescue, the upper connecting block is used for being connected with the loading equipment, the front lock assembly and the rear lock assembly of the upper connecting block are connected with the front pin shaft and the rear pin shaft of the operation accessory correspondingly, and then the operation accessory is connected with the loading equipment; after the front fixing hook is connected with the front pin shaft, the rear locking block moves towards the rear pin shaft, and the telescopic assembly enables the first telescopic rod to stretch out and form a rear fixing hook with the rear locking block; and meanwhile, the telescopic assembly enables the movable lock hook to move towards the front pin shaft and lock the front pin shaft, so that the replacement efficiency of the operation accessory can be improved, and the construction efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency rescue equipment, and in particular to a quick-change locking device and loading equipment based on earthquake emergency rescue. Background Art

[0002] At present, loading equipment is provided with a quick-change device, which is connected with a bucket and the like to realize different functions. Especially in the process of earthquake, emergency and post-earthquake landslide lake treatment, the loading equipment needs to replace different working accessories through the quick-change device. In order to improve the replacement function of the working accessories, it is necessary to increase the disassembly and connection speed of the quick-change device and the working accessories. Summary of the invention

[0003] The purpose of the present invention is to provide a quick-change locking device and loading equipment based on earthquake emergency rescue, so as to solve the technical problem that the loading equipment is slow to replace different operating accessories, thereby affecting production efficiency.

[0004] The present invention provides a quick-change locking device based on earthquake emergency rescue, comprising an upper connecting block, wherein the upper connecting block is used to connect with a loading device;

[0005] A front lock assembly and a rear lock assembly are provided at one end of the upper connecting block in the first direction, wherein the front lock assembly includes two front lock blocks, and the two front lock blocks are provided at both sides of the upper connecting block in the first direction;

[0006] A front fixing hook is arranged on the front locking block, and the front fixing hook is used to arrange a movable locking block between the two front locking blocks, and the movable locking block has a movable locking hook, and the movable locking hook is used to cooperate with the front fixing hook to fix the front pin shaft of the working attachment;

[0007] The rear locking assembly includes two rear locking blocks, and the two rear locking blocks are arranged on both sides of the upper connecting block in the first direction;

[0008] A first telescopic rod is passed through the rear locking block, a lower arc groove is provided on the rear locking block, an upper arc groove is provided on the first telescopic rod, and the upper arc groove and the lower arc groove are spliced ​​to form a rear fixing hook;

[0009] The first telescopic rod is connected to a telescopic assembly, one end of the telescopic assembly is connected to the mobile lock hook, and the other end is connected to the first telescopic rod, and the telescopic assembly is used to synchronize the first telescopic rod and the mobile lock hook to switch between a locked state and an unlocked state;

[0010] The first direction is the length direction of the upper connecting block.

[0011] In an optional embodiment, the telescopic assembly includes two hydraulic cylinders, the movable ends of the hydraulic cylinders are connected to the front locking block, the first telescopic rod is provided at one end of the hydraulic cylinder away from the movable end, and the two hydraulic cylinders are connected and move synchronously.

[0012] In an optional embodiment, the telescopic assembly includes a front fixing plate, a lower fixing plate and a transverse push rod, and both ends of the front fixing plate in the second direction are respectively connected to the front locking block;

[0013] A sliding rod is provided on the front fixed plate, one end of the sliding rod is connected to the movable locking hook, and the other end is hinged to two rotating rods, and a connecting rod is provided at one end of the rotating rod away from the sliding rod;

[0014] Guide sleeves are arranged at both ends of the transverse push rod in the second direction, and two guide grooves are arranged on the transverse push rod, and the two guide grooves are symmetrically arranged on the transverse push rod;

[0015] A guide slider is slidably arranged in the guide groove, and the connecting rod is connected to the guide slider;

[0016] The front fixing plate is arranged on the lower fixing plate, two steering shafts are symmetrically arranged on the lower fixing plate, and the steering shafts are passed through the rotating rod;

[0017] Guide rods are provided on both sides of the front fixing plate in the second direction, and the guide sleeves are sleeved on the guide rods;

[0018] Two first connecting rods are symmetrically hinged on the transverse push rod, a second connecting rod is hinged on one end of the first connecting rod away from the transverse push rod, one end of the second connecting rod is hinged to the first connecting rod, and the other end of the second connecting rod is connected to the hydraulic cylinder body of the hydraulic cylinder;

[0019] The second direction is a width direction of the upper connecting block.

[0020] In an optional embodiment, two guide sleeves are provided at both ends of the transverse push rod, and the two guide sleeves are symmetrically arranged on the upper and lower end surfaces of the transverse push rod.

[0021] In an optional embodiment, a pressure spring is sleeved on the guide rod, and the pressure spring is arranged between the front fixing plate and the guide sleeve, and the pressure spring makes the guide sleeve have a movement tendency away from the front fixing plate.

[0022] In an optional embodiment, a first assembly opening is provided at one end of the first connecting rod in the length direction, and a second assembly opening is provided at the other end, the first assembly opening is assembled on the push rod, and the second assembly opening is assembled at one end of the second connecting rod.

[0023] In an optional embodiment, the thickness of the first connecting rod is greater than the thickness of the push rod.

[0024] In an optional embodiment, a protrusion is provided on the transverse push rod, and the two first connecting rods are hinged to the protrusion, and the first connecting rods can abut against the transverse push rod and move the transverse push rod.

[0025] In an optional embodiment, a transverse rotation axis is provided between the two front locking blocks, and one end of the movable locking block is hinged on the transverse rotation axis;

[0026] A driving long slot is arranged on the movable locking block, and a side guide slot is arranged on the side wall of the driving long slot;

[0027] The sliding rod is provided with a driving long rod, and the driving long rod is arranged along the second direction; both ends of the driving long rod extend from the sliding rod and are assembled in the driving long groove.

[0028] The upper connecting block of the quick-change locking device based on earthquake emergency rescue provided by the present invention is used to connect with the loading equipment, and the front locking assembly and the rear locking assembly of the upper connecting block are respectively connected with the front pin shaft and the rear pin shaft of the working attachment, so as to realize the connection between the working attachment and the loading equipment; after the front fixing hook is connected with the front pin shaft, the rear locking block moves toward the rear pin shaft, and the telescopic assembly extends the first telescopic rod and forms a rear fixing hook with the rear locking block; and at the same time, the telescopic assembly causes the movable locking hook to move to the front pin shaft and lock the front pin shaft, which can improve the replacement efficiency of the working attachment and thus improve the construction efficiency.

[0029] The present invention provides a loading device, comprising the quick-change locking device based on earthquake emergency rescue as described in any one of the aforementioned implementation modes.

[0030] Compared with the prior art, the loading equipment provided by the present invention has the quick-change locking device based on earthquake emergency rescue provided by the present invention, and thus has all the beneficial effects of the quick-change locking device based on earthquake emergency rescue provided by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of a quick-change locking device based on earthquake emergency rescue provided by an embodiment of the present invention;

[0033] Figure 2 for Figure 1 A schematic structural diagram of a quick-change locking device based on earthquake emergency rescue from another angle is shown;

[0034] Figure 3 for Figure 2 A partial enlarged view of A of the quick-change locking device based on earthquake emergency rescue shown;

[0035] Figure 4 for Figure 2 A partial enlarged view of B of the quick-change locking device based on earthquake emergency rescue shown;

[0036] Figure 5 for Figure 1 The structure schematic diagram of the quick-change locking device based on earthquake emergency rescue from another angle is shown.

[0037] Icons: 100-front locking block; 101-front fixing hook; 200-rear locking block; 201-lower arc groove; 300-telescopic assembly; 400-first telescopic rod; 401-upper arc groove; 500-transverse push rod; 501-protrusion; 600-first connecting rod; 601-first assembly port; 602-second assembly port; 700-second connecting rod; 800-steering shaft; 900-rotating rod; 110-sliding rod; 111-driving long rod; 120-movable locking block; 130-front fixed plate; 140-lower fixed plate; 150-guide rod; 160-lateral rotating shaft; 170-guide groove; 180-guide slider; 190-guide sleeve; 210-upper connecting block. DETAILED DESCRIPTION

[0038] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the present application are usually placed when in use. They are only for the convenience of describing 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 therefore should not be understood as a limitation on the present application.

[0041] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0042] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings.

[0043] Example

[0044] Reference Figure 1-Figure 5 , the present invention provides a quick-change locking device based on earthquake emergency rescue, including an upper connecting block 210, wherein the upper connecting block 210 is used to connect with a loading device;

[0045] A front lock assembly and a rear lock assembly are provided at one end of the upper connecting block 210 in the first direction, wherein the front lock assembly includes two front lock blocks 100, and the two front lock blocks 100 are provided on both sides of the upper connecting block 210 in the first direction;

[0046] A front fixing hook 101 is provided on the front locking block 100, and the front fixing hook 101 is used to provide a movable locking block 120 between the two front locking blocks 100, and the movable locking block 120 has a movable locking hook, and the movable locking hook is used to cooperate with the front fixing hook 101 to fix the front pin shaft of the working attachment;

[0047] The rear locking assembly includes two rear locking blocks 200, and the two rear locking blocks 200 are arranged on both sides of the upper connecting block 210 in the first direction;

[0048] A first telescopic rod 400 is provided on the rear locking block 200, a lower arc groove 201 is provided on the rear locking block 200, an upper arc groove 401 is provided on the first telescopic rod 400, and the upper arc groove 401 and the lower arc groove 201 are spliced ​​to form a rear fixing hook;

[0049] The first telescopic rod 400 is connected to the telescopic assembly 300, one end of the telescopic assembly 300 is connected to the mobile lock hook, and the other end is connected to the first telescopic rod 400, and the telescopic assembly 300 is used to synchronize the first telescopic rod 400 and the mobile lock hook to switch between locked and unlocked states;

[0050] The first direction is the length direction of the upper connecting block 210 .

[0051] In some embodiments, the upper connecting block 210 of the quick-change locking device based on earthquake emergency rescue is used to connect with the loading equipment, and a front pin and a rear pin are provided on the working accessories; by connecting the quick-change locking device based on earthquake emergency rescue with the front pin and the rear pin of different working accessories, the connection between the loading equipment and different working accessories is realized.

[0052] A front lock assembly and a rear lock assembly are provided on the upper connecting block 210. The front lock assembly is used to connect to the front pin shaft of the working attachment, and the rear lock assembly is used to connect to the rear pin shaft of the working attachment. When it is necessary to connect to the working attachment, the front fixing hook 101 is first assembled on the front pin shaft, and then the rear lock assembly is connected to the rear pin shaft. The first telescopic rod 400 is moved toward the rear locking block 200 through the telescopic assembly 300, so that the upper arc groove 401 on the first telescopic rod 400 and the lower arc groove 201 form a rear fixing hook, and then the rear fixing hook is fixed on the rear pin shaft.

[0053] The telescopic assembly 300 moves the movable locking hook toward the front pin shaft and locks the front pin shaft, so that the working accessories are firmly connected to the locking device, enabling rapid replacement of different working accessories of the loading equipment and improving the working efficiency of the loading equipment. It is very necessary to improve working efficiency during earthquakes, emergencies, and post-earthquake landslide lake treatment.

[0054] Reference Figure 1 and Figure 2 In an optional embodiment, the telescopic assembly 300 includes two hydraulic cylinders, the movable ends of the hydraulic cylinders are connected to the front locking block 100, the first telescopic rod 400 is provided at one end of the hydraulic cylinder away from the movable end, and the two hydraulic cylinders are connected and move synchronously.

[0055] The telescopic assembly 300 has two hydraulic cylinders, the movable end of the hydraulic cylinder is connected to the front locking block 100, and the first telescopic rod 400 set at the other end is assembled on the rear locking block 200; when the first telescopic rod 400 needs to be telescoped, the hydraulic cylinder body of the hydraulic cylinder causes the movable end to telescope, and since the movable end of the hydraulic cylinder is fixed, the hydraulic cylinder body telescopes.

[0056] In an optional embodiment, the telescopic assembly 300 includes a front fixing plate 130, a lower fixing plate 140 and a transverse push rod 500, and both ends of the front fixing plate 130 in the second direction are respectively connected to the front locking block 100;

[0057] A sliding rod 110 is provided on the front fixing plate 130, one end of the sliding rod 110 is connected to the movable locking hook, and the other end is hinged to two rotating rods 900, and a connecting rod is provided at one end of the rotating rod 900 away from the sliding rod 110;

[0058] Guide sleeves 190 are provided at both ends of the transverse push rod 500 in the second direction, and two guide grooves 170 are provided on the transverse push rod 500, and the two guide grooves 170 are symmetrically arranged on the transverse push rod 500;

[0059] A guide slider 180 is slidably disposed in the guide groove 170 , and the connecting rod is connected to the guide slider 180 ;

[0060] The front fixing plate 130 is disposed on the lower fixing plate 140 , and two steering shafts 800 are symmetrically disposed on the lower fixing plate 140 , and the steering shafts 800 are passed through the rotating rod 900 ;

[0061] Guide rods 150 are provided on both sides of the front fixing plate 130 in the second direction, and the guide sleeves 190 are sleeved on the guide rods 150;

[0062] Two first connecting rods 600 are symmetrically hinged on the push rod 500, a second connecting rod 700 is hinged on one end of the first connecting rod 600 away from the push rod 500, and one end of the second connecting rod 700 is hinged to the first connecting rod 600, and the other end is connected to the hydraulic cylinder body of the hydraulic cylinder;

[0063] The second direction is a width direction of the upper connecting block 210 .

[0064] A transverse push rod 500 is disposed on the front fixed plate 130 , and the transverse push rod 500 is connected to the sliding rod 110 . The transverse push rod 500 moves along a first direction to make the sliding rod 110 move back and forth, thereby switching the movable lock hook between a locked state and an unlocked state.

[0065] When the hydraulic cylinder moves the movable end relative to the hydraulic cylinder body, the first telescopic rod 400 moves toward the hydraulic cylinder body, that is, the first telescopic rod 400 retracts into the rear locking block 200 .

[0066] During the movement of the hydraulic cylinder body, the hydraulic cylinder body drives the second connecting rod 700 to move toward the transverse push rod 500. During the movement of the second connecting rod 700, it drives the first connecting rod 600 to move. The first connecting rod 600 can abut against the transverse push rod 500, thereby pushing the transverse push rod 500 to move. The rotating rod 900 is set on the steering shaft 800, one end of the rotating rod 900 is connected to the transverse push rod 500, and the other end is connected to the sliding rod 110. When the transverse push rod 500 drives the rotating rod 900 to move toward the front fixed plate 130, the other end of the rotating rod 900 drives the sliding rod 110 to move toward the transverse push rod 500. That is, at this time, the sliding rod 110 retracts relative to the front fixed plate 130, that is, the moving lock hook is away from the front pin shaft, and the front lock assembly and the rear lock assembly are both in the open state. The quick-change locking device based on earthquake emergency rescue is separated from the operating accessories.

[0067] Reference Figure 3 In an optional embodiment, two guide sleeves 190 are provided at both ends of the transverse push rod 500 , and the two guide sleeves 190 are symmetrically arranged on the upper and lower end surfaces of the transverse push rod 500 .

[0068] In order to enable the lateral push rod 500 to move accurately, guide sleeves 190 are provided on the upper and lower surfaces of the lateral push rod 500, that is, two guide sleeves 190 are respectively provided at both ends of the second direction of the lateral push rod 500, and a guide sleeve 190 is provided on the upper and lower surfaces of each end of the lateral push rod 500; in this way, during the movement of the lateral push rod 500, the lateral push rod 500 can move along the guide rod 150, so that the lateral push rod 500 can move accurately, and the first connecting rod 600 and the second connecting rod 700 can move more accurately.

[0069] In an optional embodiment, a pressure spring is sleeved on the guide rod 150 , and the pressure spring is arranged between the front fixing plate 130 and the guide sleeve 190 . The pressure spring makes the guide sleeve 190 have a movement tendency to move away from the front fixing plate 130 .

[0070] A pressure spring is provided on the guide rod 150. When the front lock assembly and the rear lock assembly are in a locked state, the pressure spring always makes the guide sleeve 190 always have a tendency to move with the hydraulic cylinder, so that the first telescopic rod 400 and the sliding rod 110 are not retracted.

[0071] In an optional embodiment, a first assembly opening 601 is provided at one end of the first connecting rod 600 in the length direction, and a second assembly opening 602 is provided at the other end. The first assembly opening 601 is assembled on the push rod 500, and the second assembly opening 602 is assembled at one end of the second connecting rod 700.

[0072] In an optional implementation, the thickness of the first connecting rod 600 is greater than the thickness of the push rod 500 .

[0073] In an optional embodiment, a protrusion 501 is provided on the transverse push rod 500, and the two first connecting rods 600 are hinged on the protrusion 501, and the first connecting rods 600 can abut against the transverse push rod 500 and enable the first connecting rods 600 to effectively push the transverse push rod 500 to move.

[0074] A protrusion 501 is provided on the push rod 500, and the first connecting rod 600 is hinged on the protrusion 501. When the thickness of the first connecting rod 600 is greater than the thickness of the push rod 500, the first connecting rod 600 can abut against the push rod 500, thereby effectively pushing the push rod 500.

[0075] Reference Figure 1In an optional embodiment, a transverse rotation axis 160 is provided between the two front locking blocks 100, and one end of the movable locking block 120 is hinged on the transverse rotation axis 160;

[0076] A driving long slot is provided on the movable locking block 120, and a side guide slot is provided on the side wall of the driving long slot;

[0077] The sliding rod 110 is provided with a driving long rod 111 , and the driving long rod 111 is arranged along the second direction; both ends of the driving long rod 111 extend from the sliding rod 110 and are assembled in the driving long groove.

[0078] A driving long groove is provided on the movable locking block 120, and the driving long rod 111 moves along the driving long groove. One end of the movable locking block 120 is hinged on the transverse rotating shaft 160. When the driving long rod 111 moves along the driving long groove, the movable locking block 120 rotates along the transverse rotating shaft 160, that is, the movable locking block 120 locks the front pin shaft or unlocks it from the front pin shaft.

[0079] The upper connecting block 210 of the quick-change locking device based on earthquake emergency rescue provided by the present invention is used to connect with the loading equipment, and the front locking assembly and the rear locking assembly of the upper connecting block 210 are respectively connected to the front pin shaft and the rear pin shaft of the working accessories, thereby realizing the connection between the working accessories and the loading equipment; after the front fixing hook 101 is connected to the front pin shaft, the rear locking block 200 moves toward the rear pin shaft, and the telescopic assembly 300 extends the first telescopic rod 400 and forms a rear fixing hook with the rear locking block 200; and at the same time, the telescopic assembly 300 causes the movable locking hook to move toward the front pin shaft and lock the front pin shaft, which can improve the replacement efficiency of the working accessories and thus improve the construction efficiency.

[0080] The present invention provides a loading device, comprising the quick-change locking device based on earthquake emergency rescue as described in any one of the aforementioned implementation modes.

[0081] Compared with the prior art, the loading equipment provided by the present invention has the quick-change locking device based on earthquake emergency rescue provided by the present invention, thereby having all the beneficial effects of the quick-change locking device based on earthquake emergency rescue provided by the present invention, wherein the loading equipment is a loader.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-change locking device based on earthquake emergency rescue, characterized in that: It comprises an upper connection block (210), wherein the upper connection block (210) is used to connect with a loading device; A front locking assembly and a rear locking assembly are provided at one end of the upper connecting block (210) in the first direction, the front locking assembly comprising two front locking blocks (100), and the two front locking blocks (100) are provided on both sides of the upper connecting block (210) in the first direction; A front fixing hook (101) is arranged on the front locking block (100), and the front fixing hook (101) is used to arrange a movable locking block (120) between the two front locking blocks (100), and the movable locking block (120) has a movable locking hook, and the movable locking hook is used to cooperate with the front fixing hook (101) to fix the front pin shaft of the working attachment; The rear locking assembly comprises two rear locking blocks (200), and the two rear locking blocks (200) are arranged on both sides of the upper connecting block (210) in a first direction; A first telescopic rod (400) is passed through the rear locking block (200), a lower arc-shaped groove (201) is provided on the rear locking block (200), an upper arc-shaped groove (401) is provided on the first telescopic rod (400), and the upper arc-shaped groove (401) and the lower arc-shaped groove (201) are spliced ​​to form a rear fixing hook; The first telescopic rod (400) is connected to the telescopic assembly (300), one end of the telescopic assembly (300) is connected to the movable locking hook, and the other end is connected to the first telescopic rod (400), and the telescopic assembly (300) is used to enable the first telescopic rod (400) and the movable locking hook to synchronously switch between a locked state and an unlocked state; The first direction is the length direction of the upper connecting block (210).

2. The quick-change locking device based on earthquake emergency rescue according to claim 1 is characterized in that: The telescopic assembly (300) comprises two hydraulic cylinders, the movable ends of the hydraulic cylinders are connected to the front locking block (100), the first telescopic rod (400) is arranged at one end of the hydraulic cylinder away from the movable end, and the two hydraulic cylinders are connected and move synchronously.

3. The quick-change locking device based on earthquake emergency rescue according to claim 2 is characterized in that: The telescopic assembly (300) comprises a front fixing plate (130), a lower fixing plate (140) and a transverse push rod (500), and two ends of the front fixing plate (130) in the second direction are respectively connected to the front locking block (100); A sliding rod (110) is provided on the front fixed plate (130), one end of the sliding rod (110) is connected to the movable locking hook, and the other end is hinged to two rotating rods (900), and a connecting rod is provided at one end of the rotating rod (900) away from the sliding rod (110); Guide sleeves (190) are arranged at both ends of the transverse push rod (500) in the second direction, and two guide grooves (170) are arranged on the transverse push rod (500), and the two guide grooves (170) are symmetrically arranged on the transverse push rod (500); A guide slider (180) is slidably disposed in the guide groove (170), and the connecting rod is connected to the guide slider (180); The front fixing plate (130) is arranged on the lower fixing plate (140), two steering shafts (800) are symmetrically arranged on the lower fixing plate (140), and the steering shafts (800) are passed through the rotating rod (900); Guide rods (150) are provided on both sides of the front fixing plate (130) in the second direction, and the guide sleeves (190) are sleeved on the guide rods (150); Two first connecting rods (600) are symmetrically hinged on the push rod (500), a second connecting rod (700) is hinged on one end of the first connecting rod (600) away from the push rod (500), one end of the second connecting rod (700) is hinged to the first connecting rod (600), and the other end is connected to the hydraulic cylinder body of the hydraulic cylinder; The second direction is the width direction of the upper connecting block (210).

4. The quick-change locking device based on earthquake emergency rescue according to claim 3 is characterized in that: Two guide sleeves (190) are provided at both ends of the transverse push rod (500), and the two guide sleeves (190) are symmetrically arranged on the upper and lower end surfaces of the transverse push rod (500).

5. The quick-change locking device based on earthquake emergency rescue according to claim 3 is characterized in that: A pressure spring is sleeved on the guide rod (150), and the pressure spring is arranged between the front fixing plate (130) and the guide sleeve (190). The pressure spring enables the guide sleeve (190) to have a movement tendency away from the front fixing plate (130).

6. The quick-change locking device based on earthquake emergency rescue according to claim 3 is characterized in that: A first assembly opening (601) is provided at one end of the first connecting rod (600) in the length direction, and a second assembly opening (602) is provided at the other end. The first assembly opening (601) is assembled on the push rod (500), and the second assembly opening (602) is assembled on one end of the second connecting rod (700).

7. The quick-change locking device based on earthquake emergency rescue according to claim 6 is characterized in that: The thickness of the first connecting rod (600) is greater than the thickness of the push rod (500).

8. The quick-change locking device based on earthquake emergency rescue according to claim 6, characterized in that: The lateral push rod (500) is provided with a protrusion (501), the two first connecting rods (600) are hinged to the protrusion (501), and the first connecting rods (600) can abut against the lateral push rod (500) and move the lateral push rod (500).

9. The quick-change locking device based on earthquake emergency rescue according to claim 8, characterized in that: A transverse rotation shaft (160) is provided between the two front locking blocks (100), and one end of the movable locking block (120) is hinged on the transverse rotation shaft (160); A long driving groove is arranged on the movable locking block (120), and a side guide groove is arranged on the side wall of the long driving groove; The sliding rod (110) is provided with a driving long rod (111), and the driving long rod (111) is arranged along the second direction; both ends of the driving long rod (111) extend from the sliding rod (110) and are assembled in the driving long groove.

10. A loading device, characterized in that: It comprises the quick-change locking device based on earthquake emergency rescue as described in any one of claims 1-9.

Images