Low-clearance trolley with anti-moving function

Abstract

The utility model discloses a low-clearance trolley with an anti-moving function, which belongs to the technical field of cranes and comprises an I-shaped steel rail and a chain block main body, the chain block main body is connected with a trolley assembly; the trolley assembly is connected with a driving assembly used for moving the trolley. The driving assembly comprises a moving assembly and a limiting assembly, and the trolley assembly is connected with a lifting hook assembly. By means of the mode, cargoes can be carried, the trolley can stop suddenly, and the situation that due to inertia, the moving wheels slide for a certain distance on the I-shaped steel rail, and consequently carrying points are missed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a low-headroom trolley with an anti-movement function. Background Art

[0002] The low-headroom trolley is a lifting equipment suitable for various material transfer places such as mechanical processing, assembly, warehouses, etc., especially for places where the height of the factory is restricted.

[0003] Chinese patent CN217478884U discloses a novel low-clearance hand-pulled monorail trolley, comprising a moving frame plate and a fixed frame plate, both of which are composed of two frame plates and are sleeved on two guide rods, the moving frame plate is movably sleeved on the guide rod body, the guide rod is equipped with a mounting plate and fixed with a telescopic cylinder, the telescopic cylinder is connected to the moving frame plate, the two frames of the moving frame plate and the gap between the two frames of the fixed frame plate are equipped with lifting sprockets, the lifting sprocket is equipped with a lifting chain, one end of the lifting chain is connected to a hook assembly and the other end is connected to an external pulling mechanism, the moving frame plate is equipped with two driven running wheels, the fixed frame plate is equipped with two driving running wheels, and the manual sprocket is equipped with a manual chain.

[0004] However, this patent drives the driving gear to rotate by pulling a manual chain on the manual sprocket, thereby driving the driving wheel to slide on the rail. However, after stopping pulling the chain, the driving wheel will slide a certain distance on the I-rail due to inertia.

[0005] Based on this, the utility model designs a low clearance trolley with an anti-movement function to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a low-headroom trolley with an anti-movement function.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A low-headroom trolley with an anti-movement function comprises an I-beam rail;

[0009] It also includes a hand chain hoist body;

[0010] The main body of the hand chain hoist is connected with a trolley assembly;

[0011] The trolley assembly is connected to a driving assembly for moving the trolley;

[0012] The driving assembly includes a moving assembly and a limiting assembly, both of which are connected to the trolley assembly, and the moving assembly and the limiting assembly are connected;

[0013] The trolley assembly is connected with a hook assembly.

[0014] Furthermore, the trolley assembly includes a first frame, a second frame, a lifting chain, a first sprocket, a second sprocket, stud bolts and nuts, the first frame and the second frame are both composed of two frame plates, the two frame plates of the first frame and the second frame are fixedly connected by bolts, the first frame and the second frame are both sleeved on a plurality of stud bolts and fixed by nuts, a gap is provided between the two frame plates of the first frame and the two frame plates of the second frame, the upper and lower ends of the two frame plates of the first frame are rotatably connected with the first sprocket and the second sprocket respectively, one end of the lifting chain is hinged on the second frame, and the lifting chain is located in the gap of the second frame, the other end of the lifting chain is connected with a hook assembly and passes through the hook assembly and then bypasses the first sprocket, the second sprocket and the output sprocket of the hand chain hoist body and is hinged to the shell of the hand chain hoist body, and the right end of the first frame is fixedly connected to the hand chain hoist body.

[0015] Furthermore, the moving assembly includes a sleeve, a third sprocket, a first gear, a first chain, a second gear and a moving wheel. The rear end of the sleeve is fixedly connected to the first gear and the third sprocket, the first chain is installed on the third sprocket, and multiple moving wheels are rotatably connected to the left and right ends of the first frame and the second frame close to each other. The moving wheels on the first frame and the second frame are symmetrically arranged, the axis of the moving wheel at the left end of the second frame passes through the second frame and is fixedly connected to the second gear, the second gear is meshed with the first gear, and the sleeve is connected to the limiting assembly.

[0016] Furthermore, the sleeve is rotatably connected to the rear end left side of the second frame.

[0017] Furthermore, the limit assembly includes a rotating rod, a third gear, a fourth sprocket, a second chain, a threaded rod, a fourth gear, a threaded sleeve, a spline sleeve, a spline shaft and a limit block, the rear end of the rotating rod is fixedly connected to the third gear and the fourth sprocket, the second chain is installed on the fourth sprocket, the rear end of the threaded sleeve is fixedly connected to the fourth gear, the fourth gear is meshed with the third gear, the threaded rod is embedded in the threaded sleeve and is threadedly connected to the threaded sleeve, the spline shaft is slidably connected in the spline sleeve, the front end of the threaded rod passes through the rear frame plate of the second frame and is fixedly connected to the spline shaft, the front end of the spline shaft is fixedly connected to the limit block, and when limiting, the limit block fits and contacts with the I-beam rail.

[0018] Furthermore, the rotating rod is embedded in the circular groove at the rear end of the sleeve and is rotatably connected to the sleeve, the threaded sleeve is rotatably connected to the rear end of the second frame, and the spline sleeve passes through the front frame plate of the second frame and is fixedly connected to the front frame plate of the second frame.

[0019] Furthermore, a rubber pad is fixedly connected to the front end of the limiting block.

[0020] Furthermore, the hook assembly includes a third frame, a fifth sprocket, a hook and a partition, the third frame is composed of two frame plates, the two frame plates of the third frame are fixedly connected by bolts, a gap is provided between the two frame plates of the third frame, the front and rear ends of the two frames of the third frame are rotatably connected with the fifth sprocket, a partition is fixedly connected between the two frame plates of the third frame, the hook is fixedly connected to the lower end of the partition, and the other end of the lifting chain passes through the fifth sprocket and then bypasses the first sprocket, the second sprocket and the output sprocket of the hand chain hoist body, and is hinged to the shell of the hand chain hoist body.

[0021] The utility model has the following technical effects:

[0022] When the utility model is lifting, the chain of the hand chain hoist body is pulled to pull the lifting chain, and the lifting chain pulls the hook assembly under the action of the first sprocket and the second sprocket to lift the goods on the hook assembly, and when lifting the goods, no large shaking will occur;

[0023] When the utility model moves, the first chain is pulled, the first chain drives the third sprocket to rotate, the third sprocket drives the sleeve to rotate, the sleeve drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the moving wheel connected thereto to slide on the I-beam rail, thereby driving the remaining moving wheels to slide on the I-beam rail, thereby realizing the transportation of goods;

[0024] When the utility model is limited, the first chain is stopped and the second chain is pulled, the second chain drives the fourth sprocket to rotate, the fourth sprocket drives the rotating rod to rotate, the rotating rod drives the third gear to rotate, the third gear drives the fourth gear to rotate, the fourth gear drives the threaded sleeve to rotate, the threaded sleeve drives the threaded rod and the spline shaft to move forward along the spline sleeve, the spline shaft drives the limit block to move forward and press against the I-beam rail, so as to realize the emergency stop of the trolley and prevent the moving wheel from sliding a distance on the I-beam rail due to inertia, thereby missing the transportation point;

[0025] The utility model hoists the goods under the hook, pulls the chain of the hand chain hoist body to pull the lifting chain to drive the third frame to rise and fall, the third frame drives the partition to rise and fall, the partition drives the hook to rise and fall, so as to realize the lifting of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 The utility model is a three-dimensional low-headroom vehicle with an anti-movement function. Figure 1 ;

[0028] Figure 2 This is a front view of a low clearance trolley with anti-movement function of the utility model;

[0029] Figure 3 This is a top view of a low clearance trolley with anti-movement function of the utility model;

[0030] Figure 4 For along Figure 2 AA direction cross-sectional view;

[0031] Figure 5 For along Figure 2 BB direction cross-sectional view;

[0032] Figure 6 For along Figure 3 CC direction cross-sectional view;

[0033] Figure 7 for Figure 4 Enlarged view of point D in the middle.

[0034] The numbers in the figure represent:

[0035] 1. Trolley assembly; 11. First frame; 12. Second frame; 13. Lifting chain; 14. First sprocket; 15. Second sprocket; 16. Stud bolt; 17. Nut; 2. Hand chain hoist body; 3. Driving assembly; 31. Moving assembly; 311. Sleeve; 312. Third sprocket; 313. First gear; 314. First chain; 315. Second gear; 316. Moving wheel; 32. Limiting assembly; 321. Rotating rod; 322. Third gear; 323. Fourth sprocket; 324. Second chain; 325. Threaded rod; 326. Fourth gear; 327. Threaded sleeve; 328. Spline sleeve; 329. Spline shaft; 3210. Limiting block; 4. Hook assembly; 41. Third frame; 42. Fifth sprocket; 43. Hook; 44. Partition; 5. I-beam rail. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The utility model is further described below in conjunction with embodiments.

[0038] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0039] Example 1

[0040] Please refer to the instruction manual Figure 1-7 , a low clearance trolley with anti-movement function comprises an I-beam rail 5;

[0041] Also includes a hand chain hoist body 2;

[0042] The hand chain hoist body 2 is connected to a trolley assembly 1;

[0043] The trolley assembly 1 is connected to a driving assembly 3 for moving the trolley;

[0044] The driving assembly 3 includes a moving assembly 31 and a limiting assembly 32, both of which are connected to the trolley assembly 1, and the moving assembly 31 and the limiting assembly 32 are connected;

[0045] The trolley assembly 1 is connected with a hook assembly 4 .

[0046] Pull the chain of the hand chain hoist body 2, and under the action of the trolley assembly 1, the hook assembly 4 is driven to move upward to lift the goods. The trolley is driven to move left and right along the I-beam rail 5 by the moving assembly 31, thereby driving the goods to move left and right. The trolley is stopped urgently by the limit assembly 32, and the fixed-point transportation of the goods is realized;

[0047] The trolley assembly 1 includes a first frame 11, a second frame 12, a lifting chain 13, a first sprocket 14, a second sprocket 15, stud bolts 16 and nuts 17. The first frame 11 and the second frame 12 are both composed of two frame plates. The two frame plates of the first frame 11 and the two frame plates of the second frame 12 are both fixedly connected by bolts. The first frame 11 and the second frame 12 are both sleeved on a plurality of stud bolts 16 and fixed by nuts 17. There are two frame plates of the first frame 11 and the two frame plates of the second frame 12. There is a gap, and the upper and lower ends of the two frame plates of the first frame 11 are rotatably connected with the first sprocket 14 and the second sprocket 15 respectively. One end of the lifting chain 13 is hinged on the second frame 12, and the lifting chain 13 is located in the gap of the second frame 12. The other end of the lifting chain 13 is connected to the hook assembly 4 and passes through the hook assembly 4 and then bypasses the first sprocket 14, the second sprocket 15 and the output sprocket of the hand hoist body 2 and is hinged to the shell of the hand hoist body 2. The right end of the first frame 11 is fixedly connected to the hand hoist body 2.

[0048] When lifting, the chain of the hand chain hoist body 2 is pulled to pull the lifting chain 13, and the lifting chain 13 pulls the hook assembly 4 under the action of the first sprocket 14 and the second sprocket 15, so as to lift the goods on the hook assembly 4, and when lifting the goods, there will be no large shaking;

[0049] The moving assembly 31 includes a sleeve 311, a third sprocket 312, a first gear 313, a first chain 314, a second gear 315 and a moving wheel 316. The rear end of the sleeve 311 is fixedly connected to the first gear 313 and the third sprocket 312. The first chain 314 is installed on the third sprocket 312. A plurality of moving wheels 316 are rotatably connected to the left and right ends of the first frame 11 and the second frame 12 respectively. The moving wheels 316 on the first frame 11 and the second frame 12 are symmetrically arranged. The axis of the moving wheel 316 at the left end of the second frame 12 passes through the second frame 12 and is fixedly connected to the second gear 315. The second gear 315 is meshed with the first gear 313, and the sleeve 311 is connected to the limiting assembly 32.

[0050] The sleeve 311 is rotatably connected to the left side of the rear end of the second frame 12 .

[0051] The limiting assembly 32 includes a rotating rod 321, a third gear 322, a fourth sprocket 323, a second chain 324, a threaded rod 325, a fourth gear 326, a threaded sleeve 327, a spline sleeve 328, a spline shaft 329 and a limiting block 3210. The third gear 322 and the fourth sprocket 323 are fixedly connected at the rear end of the rotating rod 321. The second chain 324 is installed on the fourth sprocket 323. The fourth gear 326 is fixedly connected to the rear end of the threaded sleeve 327. The fourth gear 326 is meshed with the third gear 322. The threaded rod 325 is embedded in the threaded sleeve 327 and threadedly connected to the threaded sleeve 327. The spline shaft 329 is slidably connected in the spline sleeve 328. The front end of the threaded rod 325 passes through the rear frame plate of the second frame 12 and is fixedly connected to the spline shaft 329. The front end of the spline shaft 329 is fixedly connected to the limiting block 3210. When limiting, the limiting block 3210 is in contact with the I-beam rail 5.

[0052] The rotating rod 321 is embedded in the circular groove at the rear end of the sleeve 311 and is rotatably connected to the sleeve 311. The threaded sleeve 327 is rotatably connected to the rear end of the second frame 12. The spline sleeve 328 passes through the front frame plate of the second frame 12 and is fixedly connected to the front frame plate of the second frame 12.

[0053] Preferably, a rubber pad is fixedly connected to the front end of the limiting block 3210 .

[0054] When moving, the first chain 314 is pulled, the first chain 314 drives the third sprocket 312 to rotate, the third sprocket 312 drives the sleeve 311 to rotate, the sleeve 311 drives the first gear 313 to rotate, the first gear 313 drives the second gear 315 to rotate, the second gear 315 drives the moving wheel 316 connected thereto to slide on the I-beam rail 5, thereby driving the remaining moving wheels 316 to slide on the I-beam rail 5, so as to realize the transportation of goods;

[0055] When limiting, stop pulling the first chain 314, pull the second chain 324, the second chain 324 drives the fourth sprocket 323 to rotate, the fourth sprocket 323 drives the rotating rod 321 to rotate, the rotating rod 321 drives the third gear 322 to rotate, the third gear 322 drives the fourth gear 326 to rotate, the fourth gear 326 drives the threaded sleeve 327 to rotate, the threaded sleeve 327 drives the threaded rod 325 and the spline shaft 329 to move forward along the spline sleeve 328, the spline shaft 329 drives the limit block 3210 to move forward against the I-beam rail 5, so as to realize the emergency stop of the trolley and prevent the moving wheel 316 from sliding a distance on the I-beam rail 5 due to inertia, thereby missing the transportation point;

[0056] The hook assembly 4 includes a third frame 41, a fifth sprocket 42, a hook 43 and a partition 44. The third frame 41 is composed of two frame plates. The two frame plates of the third frame 41 are fixedly connected by bolts. A gap is provided between the two frame plates of the third frame 41. The fifth sprocket 42 is rotatably connected to the front and rear ends of the two frames of the third frame 41. A partition 44 is fixedly connected between the two frame plates of the third frame 41. The hook 43 is fixedly connected to the lower end of the partition 44. The other end of the lifting chain 13 passes through the fifth sprocket 42 and then bypasses the first sprocket 14, the second sprocket 15 and the output sprocket of the hand chain hoist body 2 to be hinged to the shell of the hand chain hoist body 2.

[0057] The cargo is hoisted under the hook 43, and the chain of the hand chain hoist body 2 is pulled to pull the lifting chain 13 to drive the third frame 41 to rise and fall, the third frame 41 drives the partition 44 to rise and fall, and the partition 44 drives the hook 43 to rise and fall, thereby realizing the lifting and lowering of the cargo.

[0058] 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 the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low headroom trolley with an anti-movement function, comprising an I-beam rail (5), characterized in that: It also includes a hand chain hoist body (2); The hand chain hoist body (2) is connected to a trolley assembly (1); The trolley assembly (1) is connected to a driving assembly (3) for moving the trolley; The driving assembly (3) comprises a moving assembly (31) and a limiting assembly (32), wherein the moving assembly (31) and the limiting assembly (32) are both connected to the trolley assembly (1), and the moving assembly (31) and the limiting assembly (32) are connected; The trolley assembly (1) is connected to a hook assembly (4).

2. The low clearance trolley with anti-movement function according to claim 1 is characterized in that: The trolley assembly (1) comprises a first frame (11), a second frame (12), a lifting chain (13), a first sprocket (14), a second sprocket (15), stud bolts (16) and nuts (17); the first frame (11) and the second frame (12) are each composed of two frame plates; the two frame plates of the first frame (11) and the two frame plates of the second frame (12) are both fixedly connected by bolts; the first frame (11) and the second frame (12) are both sleeved on a plurality of stud bolts (16) and fixed by nuts (17); A gap is provided between the upper and lower ends of the two frame plates of the first frame (11), respectively being rotatably connected with a first sprocket (14) and a second sprocket (15); one end of the lifting chain (13) is hinged on the second frame (12), and the lifting chain (13) is located in the gap of the second frame (12); the other end of the lifting chain (13) is connected with a hook assembly (4), passes through the hook assembly (4), and then bypasses the first sprocket (14), the second sprocket (15) and the output sprocket of the hand chain hoist body (2), and is hinged with the shell of the hand chain hoist body (2); the right end of the first frame (11) is fixedly connected to the hand chain hoist body (2).

3. The low clearance vehicle with anti-movement function according to claim 2 is characterized in that: The moving assembly (31) comprises a sleeve (311), a third sprocket (312), a first gear (313), a first chain (314), a second gear (315) and a moving wheel (316); the rear end of the sleeve (311) is fixedly connected to the first gear (313) and the third sprocket (312); the third sprocket (312) is mounted with the first chain (314); a plurality of moving wheels (316) are rotatably connected to the left and right ends of a side close to the first frame (11) and the second frame (12); the moving wheels (316) on the first frame (11) and the second frame (12) are symmetrically arranged; the shaft of the moving wheel (316) at the left end of the second frame (12) passes through the second frame (12) and is fixedly connected to the second gear (315); the second gear (315) and the first gear (313) are meshedly connected; and the sleeve (311) is connected to the limiting assembly (32).

4. The low clearance vehicle with anti-movement function according to claim 3 is characterized in that: The sleeve (311) is rotatably connected to the left side of the rear end of the second frame (12).

5. The low clearance trolley with anti-movement function according to claim 4 is characterized in that: The limiting assembly (32) comprises a rotating rod (321), a third gear (322), a fourth sprocket (323), a second chain (324), a threaded rod (325), a fourth gear (326), a threaded sleeve (327), a spline sleeve (328), a spline shaft (329) and a limiting block (3210); the rear end of the rotating rod (321) is fixedly connected to the third gear (322) and the fourth sprocket (323); the fourth sprocket (323) is mounted with the second chain (324); the rear end of the threaded sleeve (327) is fixedly connected to the third gear (322) and the fourth sprocket (323); The fourth gear (326) is meshedly connected with the third gear (322), the threaded rod (325) is embedded in the threaded sleeve (327) and threadedly connected with the threaded sleeve (327), a spline shaft (329) is slidably connected in the spline sleeve (328), the front end of the threaded rod (325) passes through the rear frame plate of the second frame (12) and is fixedly connected with the spline shaft (329), and the front end of the spline shaft (329) is fixedly connected with a limit block (3210), and when limiting, the limit block (3210) is in close contact with the I-beam rail (5).

6. The low headroom vehicle with anti-movement function according to claim 5 is characterized in that: The rotating rod (321) is embedded in the circular groove at the rear end of the sleeve (311) and is rotationally connected to the sleeve (311), the threaded sleeve (327) is rotationally connected to the rear end of the second frame (12), and the spline sleeve (328) passes through the front frame plate of the second frame (12) and is fixedly connected to the front frame plate of the second frame (12).

7. The low headroom vehicle with anti-movement function according to claim 6 is characterized in that: The front end of the limiting block (3210) is fixedly connected with a rubber pad.

8. The low headroom vehicle with anti-movement function according to claim 7 is characterized in that: The hook assembly (4) comprises a third frame (41), a fifth sprocket (42), a hook (43) and a partition (44); the third frame (41) is composed of two frame plates; the two frame plates of the third frame (41) are fixedly connected by bolts; a gap is provided between the two frame plates of the third frame (41); the fifth sprocket (42) is rotatably connected at the front and rear ends of the two frames of the third frame (41); a partition (44) is fixedly connected between the two frame plates of the third frame (41); the hook (43) is fixedly connected to the lower end of the partition (44); the other end of the lifting chain (13) passes through the fifth sprocket (42) and then bypasses the first sprocket (14), the second sprocket (15) and the output sprocket of the hand chain hoist body (2) to be hinged to the shell of the hand chain hoist body (2).

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