Improved low-clearance electric hoist

Abstract

The utility model discloses an improved low clearance electric hoist which comprises an electric rail car, an electric hoist main body, a hook body and an anti-falling fixing assembly, the electric hoist main body is fixedly installed at the bottom of the electric rail car, and the anti-falling fixing assembly is arranged at the bottom of the electric hoist main body. The hook body is arranged at the bottom of the anti-falling fixing assembly, and the anti-falling fixing assembly comprises a mounting seat, an L-shaped rod, an L-shaped positioning seat, a clamping block and a positioning clamping rod. The improved low-clearance electric hoist has the advantages of being convenient to install and good in anti-falling effect, and solves the problems that when a low-clearance electric hoist in the prior art is used, a lifting hook at the bottom of the low-clearance electric hoist is generally fixedly installed through a bolt, but threads are prone to falling off after the low-clearance electric hoist is used for a long time, and when the low-clearance electric hoist is used for hoisting, the anti-falling effect is poor. The problems that a hoisting object is prone to falling off and deformation due to the fact that the hoisting object is prone to falling off, and meanwhile a spanner is needed in the dismounting process, and time is consumed are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of low headroom electric hoists, and specifically to an improved low headroom electric hoist. Background Technology

[0002] The low headroom type electric hoist is a lifting device suitable for various material transfer locations such as machining, assembly, and warehousing. It is especially suitable for places where the height of the factory is limited, and its technology level reaches that of similar foreign products.

[0003] However, in the use of existing low headroom electric hoists, the bottom hook is usually fixed by bolts. However, after long-term use, the bolts are prone to come loose. When the electric hoist is lifting, the hoisted object is prone to falling off, which will cause the hoisted object to deform. At the same time, a wrench is required for disassembly, which takes a long time. Therefore, there is an urgent need for an improved low headroom electric hoist to overcome the above defects. Utility Model Content

[0004] The purpose of this utility model is to provide an improved low headroom electric hoist, which has the advantages of easy installation and good anti-fall-off effect, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved low-headroom electric hoist, comprising an electric railcar, an electric hoist body, a hook body, and an anti-fall-off fixing component. The electric hoist body is fixedly installed at the bottom of the electric railcar, the anti-fall-off fixing component is disposed at the bottom of the electric hoist body, and the hook body is disposed at the bottom of the anti-fall-off fixing component. The anti-fall-off fixing component includes a mounting base, an L-shaped rod, an L-shaped positioning base, a locking block, a locking sleeve, a positioning post, a fixing base, a first slider, a spring, a first sliding groove, a locking groove, a fixing block, a second sliding groove, a second slider, a threaded rod, a turntable, a through groove, a fixing groove, and a positioning locking rod.

[0006] Furthermore, the card block is fixedly installed at the bottom of the electric hoist body, the mounting base is located on the outside of the card block, the bottom of the card block has a card groove, and the inner cavity of the card groove is provided with a fixing block.

[0007] Furthermore, the bottom of the fixing block is fixedly connected to the bottom of the inner cavity of the mounting base, the bottom of the mounting base is fixedly connected to the top of the hook body, the fixing bases are all fixedly installed on both sides of the mounting base, and a second sliding groove is provided inside the fixing base.

[0008] Furthermore, a second slider is slidably connected inside the second groove, and a positioning post is fixedly installed on the side of the second slider that is relatively far away from it. L-shaped positioning seats are provided on both sides of the mounting base, and an L-shaped rod is fixedly installed on the back of the L-shaped positioning seat.

[0009] Furthermore, the L-shaped rod has a first sliding groove inside, and a first slider is slidably connected inside the first sliding groove. The front of the first slider is fixedly connected to the back of the mounting base, and a spring is fixedly installed in the inner cavity of the first sliding groove on the side relatively close to the first slider.

[0010] Furthermore, a retaining sleeve is fixedly installed on the side of the L-shaped positioning seat that is relatively far away from each other, and the back of the positioning post extends through the inner cavity of the retaining sleeve. Two through slots are opened on both sides of the inner cavity of the mounting seat, and a positioning rod is provided in the inner cavity of the through slot.

[0011] Furthermore, the side of the positioning rod that is relatively far away from the L-shaped positioning seat is fixedly connected to the side that is relatively close to the L-shaped positioning seat. The fixing slots are all opened on both sides inside the card block, and there are four of them. The side of the positioning rod that is relatively close to the L-shaped positioning seat passes through the fixing slot into the inside of the card block.

[0012] Furthermore, the second slider is internally connected to a threaded rod via a threaded connection, and a turntable is provided on the front side of the fixed seat. The front side of the threaded rod extends through to the outside of the fixed seat and is fixedly connected to the back side of the turntable.

[0013] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0014] This utility model uses an electric railcar to move the electric hoist body horizontally, and the electric hoist body to move the anti-fall-off fixing components and hook body. The hook body secures the hoisted object, and the anti-fall-off fixing components quickly secure the hook body and prevent it from falling off. In use, the electric railcar is turned on, and it moves the electric hoist body to one side. After moving to the designated position, the electric hoist body lifts and transfers the object hoisted by the hook body. When installing the hook body, first move the hook body upwards, which in turn moves the mounting base upwards. The fixing block is inserted into the inner cavity of the slot, penetrating to the inner cavity of the locking block. Then, the L-shaped fixing block is released. The seat, under the action of the spring, causes the L-shaped rod to move inward. The L-shaped rod drives the positioning rod through the fixing groove into the interior of the clamping block, thereby indirectly fixing the hook body. After fixing, in order to prevent it from loosening, the turntable is rotated, which drives the threaded rod to rotate, causing the second slider to drive the positioning pin through into the interior of the clamping sleeve, thereby fixing the L-shaped positioning seat. It has the advantages of convenient installation and good anti-fall-off effect. It solves the problem that in the use of existing low headroom electric hoists, the bottom hook is generally fixed by bolts, but after long-term use, the bolts are prone to come loose. When the electric hoist is lifting, it is easy to cause the lifted object to fall off, resulting in deformation of the lifted object. At the same time, a wrench is required for disassembly, which makes it time-consuming. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0017] Figure 3 This is a schematic diagram of the anti-fall-off fixing component structure of this utility model;

[0018] Figure 4 This is a bottom view of the cross-sectional structure of the mounting base of this utility model;

[0019] Figure 5 This is a schematic diagram of the card block's cross-sectional structure viewed from below.

[0020] In the diagram: 1. Electric railcar; 2. Electric hoist body; 3. Hook body; 4. Anti-fall-off fixing component; 41. Mounting base; 42. L-shaped rod; 43. L-shaped positioning seat; 44. Locking block; 45. Sleeve; 46. Positioning post; 47. Fixing seat; 48. First slider; 49. Spring; 491. First slide groove; 492. Slot; 493. Fixing block; 494. Second slide groove; 495. Second slider; 496. Threaded rod; 497. Turntable; 498. Through groove; 499. Fixing groove; 410. Positioning locking rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] This utility model provides, for example Figure 1-5As shown, an improved low-headroom electric hoist includes an electric railcar 1, an electric hoist body 2, a hook body 3, and an anti-fall-off fixing component 4. The electric hoist body 2 is fixedly installed at the bottom of the electric railcar 1. The anti-fall-off fixing component 4 is located at the bottom of the electric hoist body 2. The hook body 3 is located at the bottom of the anti-fall-off fixing component 4. The anti-fall-off fixing component 4 includes a mounting base 41, an L-shaped rod 42, an L-shaped positioning base 43, a locking block 44, a locking sleeve 45, a positioning post 46, a fixing base 47, a first slider 48, a spring 49, a first sliding groove 491, a slot 492, a fixing block 493, a second sliding groove 494, a second slider 495, a threaded rod 496, a turntable 497, a through groove 498, a fixing groove 499, and a positioning locking rod 410.

[0023] More specifically, the hook body 3 is used to fix the hoisted object, and the anti-fall-off fixing component 4 is used to quickly fix the hook body 3 and prevent it from falling off. In use, the electric railcar 1 is turned on, and the electric hoist body 2 is moved to one side under the action of the electric railcar 1. After moving to the designated position, the item hoisted by the hook body 3 is lifted and transferred under the action of the electric hoist body 2. When installing the hook body 3, first move the hook body 3 upwards, and the hook body 3 moves the mounting base 41 upwards, and the fixing block 493 is inserted into the slot 492. The cavity extends into the inner cavity of the locking block 44. Then, the L-shaped positioning seat 43 is released, and under the action of the spring 49, the L-shaped rod 42 moves inward. The L-shaped rod 42 drives the positioning locking rod 410 through the fixing groove 499 into the interior of the locking block 44, thereby indirectly fixing the hook body 3. After fixing, in order to prevent it from loosening, the turntable 497 is rotated, and the turntable 497 drives the threaded rod 496 to rotate, so that the second slider 495 drives the positioning pin 46 to penetrate into the interior of the sleeve 45, thereby fixing the L-shaped positioning seat 43. It has the advantages of convenient installation and good anti-fall-off effect.

[0024] In some embodiments, the locking block 44 is fixedly installed at the bottom of the electric hoist body 2, the mounting base 41 is disposed on the outside of the locking block 44, the bottom of the locking block 44 is provided with a locking groove 492, and the inner cavity of the locking groove 492 is provided with a fixing block 493. More specifically, by setting the locking groove 492 to limit the fixing block 493, the bottom of the inner cavity of the mounting base 41 is indirectly limited.

[0025] In some embodiments, the bottom of the fixing block 493 is fixedly connected to the bottom of the inner cavity of the mounting base 41, the bottom of the mounting base 41 is fixedly connected to the top of the hook body 3, and the fixing bases 47 are all fixedly installed on both sides of the mounting base 41. The fixing base 47 has a second sliding groove 494 inside. More specifically, the second sliding groove 494 is used to limit the second slider 495 to prevent the second slider 495 from shaking during movement.

[0026] In some embodiments, a second slider 495 is slidably connected inside the second slide groove 494, and a positioning post 46 is fixedly installed on the side of the second slider 495 that is relatively far away from it. Both sides of the mounting base 41 are provided with L-shaped positioning seats 43, and an L-shaped rod 42 is fixedly installed on the back of the L-shaped positioning seat 43. More specifically, the positioning post 46 is limited by the second slider 495 to prevent the positioning post 46 from shaking during movement.

[0027] In some embodiments, the L-shaped rod 42 has a first groove 491 inside, and a first slider 48 is slidably connected inside the first groove 491. The front of the first slider 48 is fixedly connected to the back of the mounting base 41. A spring 49 is fixedly installed in the inner cavity of the first groove 491 on the side relatively close to the first slider 48. More specifically, the first groove 491 is used to limit the first slider 48 to prevent the first slider 48 from shaking during movement, and the spring 49 is used to reset the L-shaped rod 42.

[0028] In some embodiments, a sleeve 45 is fixedly installed on the side of the L-shaped positioning seat 43 that is relatively far apart from the other side. The back of the positioning post 46 extends through the inner cavity of the sleeve 45. Two through slots 498 are opened on both sides of the inner cavity of the mounting seat 41. A positioning rod 410 is provided in the inner cavity of the through slot 498. More specifically, the positioning rod 410 is accommodated by the through slot 498, and the positioning rod 410 extends through the fixing slot 499 into the interior of the locking block 44 to fix the mounting seat 41.

[0029] In some embodiments, the relatively distant side of the positioning rod 410 is fixedly connected to the relatively close side of the L-shaped positioning seat 43. The fixing grooves 499 are all opened on both sides inside the locking block 44, and there are four of them. The relatively close side of the positioning rod 410 passes through the fixing groove 499 into the interior of the locking block 44. More specifically, the second sliding groove 494 is set to limit the second slider 495 to prevent the second slider 495 from shaking during movement. The positioning post 46 is moved by the second slider 495 and fixed to the L-shaped positioning seat 43 through the sleeve 45.

[0030] In some embodiments, the second slider 495 is internally connected to a threaded rod 496 via a threaded connection, and a turntable 497 is provided on the front side of the fixed base 47. The front side of the threaded rod 496 extends through to the outside of the fixed base 47 and is fixedly connected to the back side of the turntable 497. More specifically, the turntable 497 is used to drive the threaded rod 496, thereby moving the position of the second slider 495.

[0031] Working principle:

[0032] Step 1: When in use, turn on the electric railcar 1. Under the action of the electric railcar 1, the electric hoist body 2 will move to one side. After moving to the designated position, under the action of the electric hoist body 2, the item hoisted by the hook body 3 will be lifted and transferred. When installing the hook body 3, first move the hook body 3 upward. The hook body 3 will drive the mounting base 41 upward. The fixing block 493 will be inserted into the inner cavity of the slot 492 and penetrate into the inner cavity of the block 44.

[0033] Step 2: Next, loosen the L-shaped positioning seat 43. Under the action of the spring 49, the L-shaped rod 42 moves inward. The L-shaped rod 42 drives the positioning clamp rod 410 through the fixing groove 499 into the interior of the clamp block 44, thereby indirectly fixing the hook body 3. After fixing, in order to prevent it from loosening, rotate the turntable 497. The turntable 497 drives the threaded rod 496 to rotate, so that the second slider 495 drives the positioning post 46 to pass through the interior of the sleeve 45, thereby fixing the L-shaped positioning seat 43. It has the advantages of convenient installation and good anti-fall-off effect.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An improved low headroom electric hoist, characterized in that: The device includes an electric railcar (1), an electric hoist body (2), a hook body (3), and an anti-drop fixing component (4). The electric hoist body (2) is fixedly installed at the bottom of the electric railcar (1). The anti-drop fixing component (4) is located at the bottom of the electric hoist body (2). The hook body (3) is located at the bottom of the anti-drop fixing component (4). The anti-drop fixing component (4) includes a mounting base (41), an L-shaped rod (42), an L-shaped positioning base (43), a locking block (44), a locking sleeve (45), a positioning post (46), a fixing base (47), a first slider (48), a spring (49), a first sliding groove (491), a slot (492), a fixing block (493), a second sliding groove (494), a second slider (495), a threaded rod (496), a turntable (497), a through groove (498), a fixing groove (499), and a positioning locking rod (410).

2. The improved low headroom electric hoist according to claim 1, characterized in that: The card block (44) is fixedly installed at the bottom of the electric hoist body (2). The mounting base (41) is located on the outside of the card block (44). The bottom of the card block (44) is provided with a card groove (492). The inner cavity of the card groove (492) is provided with a fixing block (493).

3. The improved low headroom electric hoist according to claim 1, characterized in that: The bottom of the fixing block (493) is fixedly connected to the bottom of the inner cavity of the mounting base (41), the bottom of the mounting base (41) is fixedly connected to the top of the hook body (3), the fixing bases (47) are all fixedly installed on both sides of the mounting base (41), and the interior of the fixing base (47) is provided with a second sliding groove (494).

4. The improved low headroom electric hoist according to claim 1, characterized in that: The second slide groove (494) is slidably connected to a second slider (495). A positioning post (46) is fixedly installed on the side of the second slider (495) that is relatively far away from it. Both sides of the mounting base (41) are provided with L-shaped positioning seats (43). An L-shaped rod (42) is fixedly installed on the back of the L-shaped positioning seat (43).

5. The improved low headroom electric hoist according to claim 1, characterized in that: The L-shaped rod (42) has a first groove (491) inside. A first slider (48) is slidably connected inside the first groove (491). The front of the first slider (48) is fixedly connected to the back of the mounting base (41). A spring (49) is fixedly installed in the inner cavity of the first groove (491) on the side relatively close to the first slider (48).

6. The improved low headroom electric hoist according to claim 1, characterized in that: The L-shaped positioning seat (43) is fixedly installed with a sleeve (45) on the side that is relatively far away from each other. The back of the positioning post (46) extends through the inner cavity of the sleeve (45). Two through slots (498) are opened on both sides of the inner cavity of the mounting seat (41). A positioning rod (410) is provided in the inner cavity of the through slot (498).

7. The improved low headroom electric hoist according to claim 1, characterized in that: The positioning rod (410) is fixedly connected to the L-shaped positioning seat (43) on the side that is relatively far away from each other. The fixing grooves (499) are all opened on both sides inside the card block (44) and there are four of them. The positioning rod (410) on the side that is relatively close to each other passes through the fixing grooves (499) into the inside of the card block (44).

8. The improved low headroom electric hoist according to claim 1, characterized in that: The second slider (495) is internally connected to a threaded rod (496) via a threaded connection. A turntable (497) is provided on the front side of the fixed seat (47). The front side of the threaded rod (496) extends through to the outside of the fixed seat (47) and is fixedly connected to the back side of the turntable (497).

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