CN213707645U

CN213707645U - Height limiting device for fork truck

Info

Publication number: CN213707645U
Application number: CN202022742756.7U
Authority: CN
Inventors: 裴双伟; 周凤吉
Original assignee: Shanxi Suihua Logistics Park Co ltd
Current assignee: Shanxi Suihua Logistics Park Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-16
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a height limiting device for a fork lift truck, which comprises a portal frame, wherein the portal frame is provided with two groups which are symmetrically arranged in the left side, the lower part of the left end of the portal frame is fixedly provided with a travel switch, the upper part of the left end of the portal frame is arranged in the left side, the upper part of the right end of the portal frame is symmetrically provided with a plurality of mounting holes which are equally spaced, one group of symmetrical mounting holes in the plurality of symmetrically arranged mounting holes are movably provided with a limiting device, two groups of limiting devices are respectively provided with a pressure sensor, the upper ends of the two door frames are jointly and fixedly provided with a top plate, an LED warning lamp is fixedly arranged at the rear end of the top plate, the opposite surfaces of the two door frames are jointly and slidably provided with a fork frame, the hydraulic lifting device is characterized in that pressing plates are symmetrically and fixedly mounted on the left part and the right part of the upper end of the fork frame, and a hydraulic lifting device is fixedly mounted in the middle of the lower end of the fork frame. A pile high for vehicle limit for height device, can freely adjust the maximum height that can inject, simple structure is practical.

Description

Height limiting device for fork truck

Technical Field

The utility model relates to a pile high car equipment field, in particular to pile high car with limit for height device.

Background

The fork truck has simple structure, flexible operation, good jogging performance and high explosion-proof safety performance. The tray loading and unloading device is suitable for operation in narrow passages and limited spaces, and is ideal equipment for loading and unloading trays in elevated warehouses and workshops. The combined type pallet can be widely applied to industries such as petroleum, chemical industry, pharmacy, light textile, military industry, paint, pigment, coal and the like, and can enter a cabin, a carriage and a container to carry out loading, unloading, stacking and carrying operations of pallet goods. The working efficiency can be greatly improved, the labor intensity of workers is reduced, and the market competition opportunity is won for enterprises.

The height limiting device of the fork truck in the prior art is characterized in that a metal stop block is fixedly arranged on a portal frame and used for clamping a fork frame. The height limiting device for the forklift has the disadvantages that the height is limited to be single, fixed and cannot be adjusted, impact and abrasion can be caused to the fork frame and the gantry in a hard collision mode, and potential safety hazards such as structural damage, falling of goods, collision splashing and the like are easily caused by collision.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pile high automobile-used limit for height device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a height limiting device for a fork truck comprises a gantry, wherein two groups of gantries are symmetrically arranged in the left-right direction, travel switches are fixedly arranged at the lower part of the left end of the gantry on the left side, a plurality of mounting holes with equal intervals are symmetrically formed in the upper part of the left end of the gantry on the left side and the upper part of the right end of the gantry on the right side, a height limiting device is movably arranged on one group of the symmetrical mounting holes, pressure sensors (the brand: the Acheson technology model: 1031C220N) are arranged on the two groups of height limiting devices, a top plate is fixedly arranged at the upper ends of the two gantries together, an LED warning lamp is fixedly arranged at the rear end of the top plate, a fork frame is slidably arranged on the opposite surfaces of the two gantries together, a pressing plate is symmetrically and fixedly arranged at the left part and the right part of the upper end of the, and a hydraulic lifting device is fixedly arranged in the middle of the lower end of the fork frame.

Preferably, the fork frame comprises a mounting frame, two sets of the gantries are symmetrically provided with lower chutes close to one ends of the mounting frame, the mounting frame is connected to the two sets of the gantries through the lower chutes in a sliding manner, and fork pieces are symmetrically and fixedly mounted on the left portion of the rear end and the right portion of the rear end of the mounting frame.

Preferably, the height limiting device comprises a limiting block, the limiting block is located in a lower chute formed in the portal, a screw rod is fixedly mounted in the middle of one end, close to the lower chute, of the limiting block, one end, far away from the limiting block, of the screw rod penetrates through the mounting hole, and a nut is connected to the exterior of the portal in a threaded manner.

Preferably, the lower part of the outer surface of the limiting block is provided with an installation groove, and the pressure sensor (brand: Acheson technology model: 1031C220N) is fixedly installed on the limiting block through the installation groove.

Preferably, the hydraulic lifting device comprises a hydraulic rod, the hydraulic rod is fixedly installed in the middle of the lower end of the fork frame, a hydraulic cylinder is fixedly installed at the lower end of the hydraulic rod, and the lower end of the hydraulic cylinder and the lower ends of the two door frames are located on the same plane.

Preferably, the limiting block is wedge-shaped, and the sensing end of the pressure sensor slightly protrudes out of the outer surface of the limiting block.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. by arranging the height limiting device, the limiting block is fixedly arranged in the lower chute through threaded connection, the fork frame is connected on the lower chute of the door frame in a sliding way, after the hydraulic lifting device fixedly connected with the fork frame is started, the fork frame can be pushed to lift up and down on the lower chute to achieve the effect of pushing up and carrying materials, when the fork frame is pushed to a limited height by the hydraulic lifting device, the pressure plate fixedly arranged at the upper end of the fork frame is contacted with the outer surface of the limiting block, the pressure sensor (the brand: Acheson technology model: 1031C220N) on the limiting block senses the pressure of the pressure plate and then starts the travel switch, the travel switch closes the hydraulic lifting device, thereby reach the effect that can not continue to rise and reach spacing effect, through having seted up a plurality of mounting hole, the limit for height device can be according to the requirement restriction that the car that promotes under the different scenes can the maximum height that goes up, deals with different environments in a flexible way.

2. Through being provided with the stopper, install pressure sensor on the stopper, when the crotch goes up and down to the height that needs the restriction, clamp plate and stopper contact, the stopper of wedge shape can avoid crotch and stopper frontal collision effectively, reduces the structural damage.

Drawings

FIG. 1 is a schematic view of the overall structure of a height limiting device for a fork truck of the present invention;

FIG. 2 is a schematic view of the connection between the fork frame and the gantry of the height limiter for forklift according to the present invention;

FIG. 3 is a schematic view of the installation structure of the height limiter and the pressure sensor of the height limiter for the fork lift truck of the present invention;

fig. 4 is the structure schematic diagram of the hydraulic lifting device of the height limiting device for the fork truck of the utility model.

In the figure: 1. a gantry; 2. a fork; 21. a mounting frame; 22. a fork sheet; 3. a hydraulic lifting device; 31. a hydraulic cylinder; 32. a hydraulic lever; 4. a travel switch; 5. pressing a plate; 6. a limiting device; 61. a limiting block; 62. mounting grooves; 63. a screw; 64. a nut; 7. a pressure sensor; 8. mounting holes; 9. an LED warning light; 10. a top plate; 11. a lower chute.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-4, the height limiting device for the fork truck comprises portal frames 1, wherein two groups of portal frames 1 are symmetrically arranged in the left-right direction, a travel switch 4 is fixedly arranged at the lower part of the left end of the left portal frame 1, a plurality of mounting holes 8 with equal intervals are symmetrically arranged at the upper part of the left end of the left portal frame 1 and the upper part of the right end of the right portal frame 1, equal movable mounting has stop device 6 on the mounting hole 8 of one of them a set of symmetry in a plurality of mounting hole 8 that the symmetry was seted up, all be provided with pressure sensor 7 on two sets of stop device 6, the common fixed mounting in two portal 1 upper ends has roof 10, roof 10 rear end fixed mounting has LED warning light 9, the common slidable mounting of two portal 1 opposite faces has crotch 2, the equal symmetrical fixed mounting in crotch 2 upper end left part and upper end right part has clamp plate 5 and clamp plate 5 is located the recess inner chamber that portal 1 was seted up, 2 lower extreme middle part fixed mounting of crotch has hydraulic pressure elevating gear 3.

Fork frame 2 includes mounting bracket 21, and two sets of portal 1 are close to the equal symmetry of one end near mounting bracket 21 and have seted up down spout 11, and mounting bracket 21 is on two sets of portal 1 through 11 sliding connection of spout down, and mounting bracket 21 rear end left part and the equal symmetrical fixed mounting in rear end right part have a fork piece 22, and fork frame 2 is connected on portal 1 through spout 11 down, can place the material on the fork frame and reciprocate on portal 1 promptly.

Stop device 6 includes stopper 61, and stopper 61 is located the lower spout 11 that portal 1 seted up, and the one end middle part fixed mounting that stopper 61 is close to lower spout 11 has screw rod 63, and the one end that stopper 61 was kept away from to screw rod 63 runs through mounting hole 8, and has nut 64 at portal 1 outside threaded connection, and stopper 61 passes through threaded connection fixed mounting under in spout 11, can restrict the displacement height of crotch 2 in spout 11 down and reach the requirement of limit for height.

The lower part of the outer surface of the limiting block 61 is provided with an installation groove 62, the pressure sensor 7 is fixedly installed on the limiting block 61 through the installation groove 62, when the fork frame 2 ascends to a limited height, a pressure plate (5) at the upper end of the fork frame 2 can be contacted with the pressure sensor 7 on the limiting block 61, and the pressure sensor 7 can stop hydraulic lifting through a travel switch after monitoring that the fork frame 2 reaches the limited height.

The hydraulic lifting device 3 comprises a hydraulic rod 32, the hydraulic rod 32 is fixedly installed in the middle of the lower end of the fork frame 2, a hydraulic cylinder 31 is fixedly installed at the lower end of the hydraulic rod 32, the lower end of the hydraulic cylinder 31 and the lower ends of the two portal frames 1 are located on the same plane, the lifting stability of the whole device can be kept, and the hydraulic cylinder 31 pushes the hydraulic rod 32 to lift through a piston, so that the fork frame 2 is driven to lift.

The limiting block 61 is wedge-shaped, and the sensing end of the pressure sensor 7 slightly protrudes out of the outer surface of the limiting block 61, so that the pressure sensor 7 can timely monitor whether the fork frame 2 rises to a limited height.

It should be noted that the hydraulic cylinder 31, the pressure sensor 7 and the LED warning light are all electrically connected to the travel switch 4.

It should be noted that the utility model is a height limiting device for a fork truck, when in use, the materials to be piled are placed on the fork frame 2, the hydraulic lifting device 3 is started, the hydraulic cylinder 31 pushes the hydraulic rod 32 to lift up and down through the piston, thereby driving the fork frame 2 to ascend and descend, when the fork frame 2 with the materials ascends to a limited height, the pressure plate 5 at the upper end of the fork frame 2 contacts with the limit block 61, the pressure sensor arranged on the limit block 61 transmits the information that the fork frame 2 ascends to the limited height to the travel switch 4, the travel switch controls the hydraulic lifting device 3 to stop working, and meanwhile, the LED warning lamp can be controlled to emit red light, when the limited lifting height needs to be adjusted, the nut 64 is loosened, the limiting device 6 is taken out of the lower chute 11, and the mounting hole 8 with the required height is selected again to be fixed in the lower chute 11 through threaded connection again.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a heap height limit device for car, includes portal (1), its characterized in that: portal (1) has two sets of and bilateral symmetry installation, is located the left portal (1) left end lower part fixed mounting has travel switch (4), is located the left side portal (1) left end upper portion and being located the right side a plurality of mounting hole (8) of equidistant are seted up to the equal symmetry in portal (1) right-hand member upper portion, equal movable mounting has stop device (6), two on one of them a set of symmetrical mounting hole (8) in a plurality of mounting hole (8) that the symmetry was seted up all be provided with pressure sensor (7) on stop device (6), two the common fixed mounting in portal (1) upper end has roof (10), roof (10) rear end fixed mounting has LED warning light (9), two the common slidable mounting of portal (1) opposite face has crotch (2), the equal symmetrical fixed mounting in crotch of crotch (2) upper end left part and upper end right part has clamp plate (5) and clamp plate (5) to be located the recess inner chamber that portal (1) was seted up And a hydraulic lifting device (3) is fixedly arranged in the middle of the lower end of the fork frame (2).

2. The height limiting device for the forklift according to claim 1, wherein: fork frame (2) are including mounting bracket (21), and are two sets of spout (11) have been seted up down to equal symmetry of one end that portal (1) are close to near mounting bracket (21), mounting bracket (21) are through spout (11) sliding connection down on two sets of portals (1), mounting bracket (21) rear end left part and the equal symmetry fixed mounting in rear end right part have fork piece (22).

3. The height limiting device for the forklift according to claim 2, wherein: stop device (6) include stopper (61), stopper (61) are located lower spout (11) that portal (1) was seted up, stopper (61) are close to the one end middle part fixed mounting of spout (11) down and have screw rod (63), mounting hole (8) is run through to the one end that stopper (61) were kept away from in screw rod (63), and have nut (64) at portal (1) outside threaded connection.

4. The height limiting device for the forklift according to claim 3, wherein: mounting groove (62) have been seted up to stopper (61) surface lower part, pressure sensor (7) are through mounting groove (62) fixed mounting on stopper (61).

5. The height limiting device for the forklift according to claim 1, wherein: the hydraulic lifting device (3) comprises a hydraulic rod (32), the hydraulic rod (32) is fixedly installed in the middle of the lower end of the fork frame (2), a hydraulic cylinder (31) is fixedly installed at the lower end of the hydraulic rod (32), and the lower end of the hydraulic cylinder (31) is located on the same plane with the lower end of the portal frame (1).

6. The height limiting device for the forklift according to claim 3, wherein: the limiting block (61) is wedge-shaped, and the sensing end of the pressure sensor (7) slightly protrudes out of the outer surface of the limiting block (61).