CN208087130U - A kind of twin post auto elevator - Google Patents

Abstract

The utility model relates to a double-column automobile hoist, which comprises two groups of lifting mechanisms arranged symmetrically; The bearing seat on the output end of the hydraulic cylinder, the lifting pulley installed on the bearing seat, the lifting cable, the hammer head fixed on the lifting shell, the support rod assembly installed on the hammer head; one end of the lifting cable bypassing the lifting pulley Fixed on the lifting shell, the other end of the lifting cable is fixed on the column. A hoist can be used to lift automobiles and belongs to the technical field of automobile hoists.

Description

A double-column car hoist

technical field

The utility model relates to the technical field of automobile hoists, in particular to a double-column automobile hoist.

Background technique

With the rapid development of science and the improvement of people's living standards, cars have become the main way for people to travel. With the rapid increase in the number of cars, the market for car repair and maintenance is also growing. Among them, the car hoist is indispensable in car inspection, repair and maintenance. Now there are various hoists, such as double-column, four-column, scissor and combined mobile car. Among them, the double-column type is simple in structure, convenient and practical, easy to maintain, safe and reliable, and occupies a small area. It has a good cost performance among various car hoists, so it occupies most of the hoist market.

At present, the hydraulic lifting device for lifting family cars with a weight of 1 to 2 tons is the most widely used. Its structure directly affects the convenience of maintenance personnel's operation, and its product quality directly affects the safety of maintenance personnel. At present, the double-column car hoist has manufacturing errors and other reasons, so that the hydraulic cylinders cannot be kept in sync, and the structure is complicated, the equipment is high, the price is high, the space is large, the operation is inconvenient, and it is not suitable for transportation and installation. The cylinders cannot be lifted synchronously, causing the car to tilt when it is lifted, posing safety hazards, the distance between the driving device and the lifting device is too close, the noise is loud, and the working environment is harsh. So far, there is no simple and effective solution.

Utility model content

Aiming at the technical problems in the prior art, the purpose of the utility model is to provide a double-column car hoist, which can be used to lift cars.

In order to achieve the above object, the utility model adopts the following technical solutions:

A double-column car hoist, including two groups of lifting mechanisms arranged symmetrically; the hoisting mechanism includes a vertically placed column, a lifting shell slidably installed on the column, a hydraulic cylinder fixed on the column, and a hydraulic cylinder installed on the output of the hydraulic cylinder. The bearing seat on the end, the lifting pulley installed on the bearing seat, the lifting cable, the hammer head fixed on the lifting shell, the support rod assembly installed on the hammer head; one end of the lifting cable bypassing the lifting pulley is fixed on the lifting shell The other end of the lifting cable is fixed on the column.

Further, the vertically placed lifting shell is slidably placed in the column, the lifting shell is provided with a vertical chute, and the column is provided with a slide rail matched with the chute.

Further, the lifting shell is in the shape of a square tube, the column is in the shape of a channel steel, the chute is arranged on one side of the lifting shell, and the slide rail is fixed on the column.

Further, the hoist also includes two sets of balance mechanisms; the balance mechanism includes a first pulley, a second pulley, a third pulley, and a balance cable; the first pulley is installed on the upper part of the column, and the second pulley and the third pulley are installed on the The lower part of the column, the first pulley and the third pulley are installed in different columns, the first pulley and the second pulley are installed in the same column; one end of the balance cable is fixed on one of the lifting shells, and the other end of the balance cable Go around the first pulley, the second pulley, the third pulley in turn and fix them on the other lifting shell; the first pulley of one set of balance mechanism is installed on one of the columns, and the first pulley of the other set of balance mechanism is installed on the other on a post.

Further, limit blocks are provided around the upper end and lower end of the lifting shell, and limit holes for the balance cable to pass are provided on the limit blocks.

Further, the hammerhead includes an integrally formed vertical part and a horizontal part, the vertical part is fixed on the lifting shell, and the support rod assembly is rotatably installed at the end of the horizontal part.

Further, there are four sets of support bar assemblies, wherein two sets of support bar assemblies are respectively installed at both ends of the horizontal part of one of the hammer heads, and the other two sets of support bar assemblies are respectively installed at both ends of the horizontal part of the other hammer head .

Further: the bracket assembly includes a bracket, a bracket head fixed on the bracket, a bracket fixed on the bracket head, and a rubber block fixed on the bracket; the bracket is fixed at the level of the hammer head by bolts At the end of the upper part, the head of the support rod is provided with a plurality of bolt holes distributed along the length direction of the head of the support rod. A part of the head of the support rod is embedded in the inside of the support rod and fixed on the support rod by bolts. The support block includes an integrally formed The cylinder and the supporting plate, the cylinder is inserted into the head of the supporting rod and fixed on the head of the supporting rod, and the rubber block is fixed on the supporting plate.

Further, the slide rail is provided with a plurality of locking teeth arranged sequentially from top to bottom, the upper end surface of the locking teeth is a plane, and the lower end surface of the locking teeth is an inclined plane; the hoist also includes a hovering mechanism, and the hovering mechanism includes setting Iron blocks, connecting rods, electromagnets, springs, insert rods, and clamps on the hammer head; the electromagnet is fixed inside the hammer head, one end of the spring is connected to the electromagnet, and the other end of the spring is connected to the iron block. The iron block is fixed on one end of the connecting rod, and the inserting rod is fixed on the other end of the connecting rod. The card plate is placed horizontally and slidably installed on the hammer head. Pass through and insert into the cavity of the bayonet.

Further, the lower end of the column is provided with a base.

In general, the utility model has the following advantages:

The double hydraulic cylinders of this hoist are synchronously lifted, with simple operation, low noise, flexible layout, simple structure, and low cost. . The support bar assembly has a telescopic function, which ensures the flexible positioning of the car chassis by the car hoist, and improves the practicability of the car hoist. The hammer head adopts a symmetrical structure design, so the force is relatively balanced, durable, and it is not easy to produce irreversible deformation during operation.

Description of drawings

Fig. 1 is a perspective view of the hoist.

Fig. 2 is the structure schematic diagram of this hoist, does not draw support bar assembly and hammer head.

Fig. 3 is a schematic structural diagram of the interior of the lower part of the column.

Fig. 4 is a left side view of the lower part of the column on the right side.

Fig. 5 is a structural schematic diagram of a column.

Fig. 6 is a structural schematic diagram of the lifting shell.

Fig. 7 is a structural schematic diagram of the lower part of the column, the lifting shell and the hammer head.

Fig. 8 is a structural schematic diagram of the connection between the hammer head and the supporting rod.

Figure 9 is an exploded view of the bracket assembly.

Fig. 10 is a schematic structural view of the support rod assembly.

Fig. 11 is a schematic diagram of the structure of the hovering mechanism stuck on the teeth of the slide rail.

Figure 12 is a schematic diagram of the hovering mechanism.

Figure 13 is a schematic diagram of the balancing mechanism at the rear.

Figure 14 is a schematic diagram of the balance mechanism at the front.

Fig. 15 is the schematic diagram of hydraulic cylinder, bearing block, hoisting pulley, hoisting cable.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In order to facilitate a unified review of the various reference signs in the drawings of the specification, the unified description of the reference signs appearing in the drawings of the specification is as follows:

1 is the base, 2 is the column, 3 is the lifting shell, 4 is the hammer head, 5 is the slide rail, 6 is the locking tooth, 7 is the support rod, 8 is the support rod head, 9 is the support block, 10 is the rubber block, 11 12 is the supporting plate, 13 is the vertical part of the hammer head, 14 is the horizontal part of the hammer head, 15 is the reinforcing plate, 16 is the hydraulic cylinder, 17 is the bearing seat, 18 is the lifting pulley, 19 is the lifting cable , 20 is the first pulley, 21 is the second pulley, 22 is the third pulley, 23 is the balance cable, 24 is the chute, 25 is the limit block, 26 is the limit hole, 27 is the iron block, 28 is the connecting rod , 29 is a spring, 30 is an electromagnet, 31 is a plunger, and 32 is a clamp.

For the convenience of description, the directions mentioned below are described as follows: the up and down directions mentioned below are consistent with the up and down directions when the hoist is naturally placed, and the two sets of lifting mechanisms are arranged along the left and right directions, and the front and rear directions mentioned below are the same as those in Figure 4 The right and left directions are the same, the left and right directions are the horizontal direction, and the front and rear directions are the vertical direction.

As shown in Figures 1 to 15, a double-column car hoist includes two sets of lifting mechanisms arranged symmetrically; one set of lifting mechanisms is on the left, and the other set of lifting mechanisms is on the right. The structures of the two sets of lifting mechanisms are the same of. The lifting mechanism includes a vertical column, a lifting shell slidingly installed on the column, a hydraulic cylinder fixed on the column, a bearing seat installed on the output end of the hydraulic cylinder, a lifting pulley installed on the bearing seat, a lifting cable, The hammer head fixed on the lifting shell, the support rod assembly installed on the hammer head; one end of the hoisting cable bypassing the lifting pulley is fixed on the lifting shell, and the other end of the hoisting cable is fixed on the column. The lower end of the column is provided with a base, and the column and the base are an integral structure. The lifting shell can slide up and down along the column, the hydraulic cylinder can be placed on the base, and the hydraulic cylinder is fixed on the base, the bearing seat is installed on the upper end of the output end of the hydraulic cylinder, and the lifting pulley can rotate relative to the bearing seat.

As shown in Figure 2, Figure 3, Figure 5, and Figure 6, the vertically placed lifting shell is slidably placed in the column, and the lifting shell is provided with a vertical chute, and the column is provided with a slide that matches the chute. rail. The lifting shell is in the shape of a square tube, the column is in the shape of a channel steel, the chute is arranged on one side of the lifting shell, and the slide rail is fixed on the column. Take the lifting mechanism on the right as an example: the chute is set on the left side of the lifting shell, the slide rail is fixed on the left end of the column, the column has an open cavity, the lifting shell is in the cavity of the column, and the slide rail and the chute Under the cooperative action of the lifting shell, the lifting shell can move up and down.

As shown in Figure 1, Figure 13, and Figure 14, the hoist also includes two sets of balance mechanisms; one set of balance mechanisms is at the front, and the other set of balance mechanisms is at the back. The structures of the two sets of balance mechanisms are the same, and the balance mechanisms are located on the columns internal. Take one group of balance mechanisms as an example: the balance mechanism includes a first pulley, a second pulley, a third pulley, and a balance cable. The first pulley is installed on the upper part of the column, the second pulley and the third pulley are installed on the lower part of the column, the first pulley and the third pulley are respectively installed in different columns, and the first pulley and the second pulley are installed on the same column Inside, the second pulley and the third pulley are respectively installed in different columns. One end of the balance cable is fixed on one of the lifting shells, and the other end of the balance cable walks around the first pulley, the second pulley, the third pulley and is fixed on the other lifting shell. The first pulley of one group of balance mechanisms is installed on one of the columns, and the first pulley of another group of balance mechanisms is installed on the other column. Take the balance mechanism at the back as an example: the first pulley is installed on the upper part of the right column, the second pulley is installed on the lower part of the right column, the third pulley is installed on the lower part of the left column, and one end of the balance cable is fixed on the right lifting The upper end of the shell, then the balance cable goes around the first pulley, the second pulley, and the third pulley successively, and then the other end of the balance cable is fixed on the lifting shell on the left side. For the balance mechanism in front: the first pulley is installed on the top of the left column, the second pulley is installed on the bottom of the left column, and the third pulley is installed on the bottom of the right column.

As shown in Figure 1, Figure 13, and Figure 14, if the lifting shell on the right is lifted earlier than the lifting shell on the left, the balance cable in the front balance mechanism is pulled by the upward movement of the lifting shell on the right, according to Newton The third law: the force is reciprocal. The lifting shell on the right is pulled downward by the balance cable, and the direction is changed through the pulley. The left lifting shell is pulled upward by the balance cable, and the balance cable pulls the left lifting shell upward at the same time. , to achieve the purpose of balancing the lifting shell on both sides. In the same way: if the lifting shell on the left is lifted earlier than the lifting shell on the right, then the balance cable in the rear balance mechanism is pulled by the upward movement of the left lifting shell, according to Newton's third law: the action of force is mutual Yes, the lifting shell on the left is pulled downward by the balance cable, changes direction through the pulley, and the lifting shell on the right is pulled upward by the balance cable, and the balance cable simultaneously pulls the right lifting shell upward to achieve the purpose of balancing the lifting shells on both sides.

As shown in FIG. 6 , limit blocks are provided around the upper end and lower end of the lifting shell, and limit holes for the balance cables to pass are provided on the limit blocks. For the rear balance mechanism: one end of the balance cable is fixed to the right column, and then the balance cable goes around the first pulley, passes through the through hole of the upper limit block of the lifting shell, and then passes through the limit block of the lower end of the lifting shell Then go around the second pulley, pass through the base on the right, then pass through the base on the left, go around the third pulley, pass through the limit block at the lower end of the left lifting shell, and then balance the cable The end of the is fixed on the lifting shell on the left.

As shown in Fig. 1 and Fig. 7, the hammer head includes an integrally formed vertical part and a horizontal part, the vertical part is fixed on the lifting shell, and the support bar assembly is rotatably installed at the end of the horizontal part. For the hammer head on the right side: the vertical part is fixed on the left side of the lifting shell, the horizontal part is arranged along the front and back direction, and a reinforcing plate is arranged between the vertical part and the horizontal part.

As shown in Figure 1 and Figure 8, there are four sets of support rod assemblies, of which two sets of support rod assemblies are respectively installed at both ends of the horizontal part of one of the hammer heads, and the other two sets of support rod assemblies are respectively installed at the ends of the other hammer head. Both ends of the horizontal section. That is to say, two sets of support rod assemblies are installed on the hammer head on the right, and the other two sets of support rod assemblies are installed on the left hammer head; take the two sets of support rod assemblies on the right as an example: one set of support rod assemblies is installed on the horizontal The front end of the horizontal part, another set of bracket assembly is installed at the rear end of the horizontal part.

As shown in Fig. 1, Fig. 9 and Fig. 10, the supporting bar assembly includes a supporting bar, a supporting bar head fixed on the supporting bar, a supporting block fixed on the supporting bar head, and a rubber block fixed on the supporting block. The support bar is fixed on the end of the horizontal part of the hammer head by bolts. After the bolt is unscrewed, the support bar can be rotated to a suitable angle, and the support bar can be fixed on the horizontal part by tightening the bolt. There are a plurality of bolt holes distributed along the length direction of the support bar head on the support bar head, that is, a plurality of bolt holes are distributed along the transverse direction, and a part of the support bar head is embedded in the inside of the support bar and fixed on the support bar by bolts , because there are multiple bolt holes on the head of the support rod, the depth of the insertion of the support rod head into the support rod can be adjusted according to the needs, and then fixed with bolts. The supporting block includes a cylinder and a supporting plate integrally formed, the cylinder is inserted into the supporting rod head and fixed on the supporting rod head, and the rubber block is fixed on the supporting plate. The black rubber block is square, with a water-repellent groove in the middle to achieve better friction even when the car chassis is wet and slippery. The black rubber block has a wavy structure and a cross pattern on the surface, which can ensure greater friction between the black rubber block and the car chassis, and prevent the black rubber block from excessive deformation and cause side cracking.

As shown in Figure 1, Figure 11, and Figure 12, the slide rail is provided with a plurality of locking teeth arranged in sequence from top to bottom. The end face is a plane, and the lower end face of the locking tooth is an inclined plane. The hoist also includes a hovering mechanism, which includes an iron block, a connecting rod, an electromagnet, a spring, a plunger, and a clamping plate arranged on the tup. The iron block, electromagnet, and spring are located inside the hammer head, and a part of the connecting rod is also located inside the hammer head. The electromagnet is fixed inside the hammer head, one end of the spring is connected to the electromagnet, the other end of the spring is connected to the iron block, the iron block is fixed to one end of the connecting rod, and the inserting rod is fixed to the other end of the connecting rod. On the outside of the hammer head, the card board is placed horizontally and slidably installed on the hammer head. There are two protrusions on the card board, and the insertion rod passes between the two protrusions and is inserted into the cavity of the card teeth, that is, card slot. When the electromagnet is energized, the electromagnet attracts the iron block, and the iron block approaches the electromagnet, so that the connecting rod stretches out, and the insertion rod is fixed on the connecting rod, and the insertion rod approaches the locking teeth, and at the same time, the insertion rod is inserted into the locking teeth, The movement of the plunger drives the clamping plate close to the clamping teeth through the two protrusions on the clamping plate, and the clamping plate moves to the upper end surface of the clamping teeth under the joint action of the hydraulic cylinder. After the clamping plate moves to the upper end surface of the clamping teeth, the hydraulic pressure The cylinder stops supplying oil, and the hammer head will not move downward because the pallet is stuck on the teeth. After the maintenance is completed, start it for a short time, the hydraulic cylinder continues to supply oil, the lifting shell drives the supporting rod to move upward for a short distance, so that the inserting rod is pulled out from the card slot, and then the electromagnet is powered off, and the spring pushes the iron block away from the card slot. The connecting rod drives the insertion rod away from the locking teeth, and the insertion rod drives the clamping plate through two protrusions until the clamping plate is not in contact with the locking teeth, so that the hammer head can move downward again.

The principle of this hoist: place the car on the four support bar components, and the four rubber blocks can support the car. At the same time, the support bar can be selected to a suitable angle according to the needs, and then the support bar can be fixed. After the car is placed, as shown in Figure 1, Figure 4, and Figure 15, the hydraulic cylinder pushes the bearing seat and the lifting pulley to move upward, the lifting cable pulls the lifting shell to move upward, the hammer head moves upward, and the supporting rod also moves upward movement, thereby raising the car. When it is lifted to the required maintenance height, the hydraulic cylinder does not supply oil, and the hovering mechanism can fix the car at the maintenance height.

For family cars of different models and widths that need to be repaired, first turn the support bar to both sides, then drive the car, and park the car in the middle of the hoist. After the car is parked, connect the hammer head and the support bar with a straight pin, and act as a temporary rotating shaft for the support bar. Move the support rods on both sides to the car chassis, align with the position of the beam frame of the car chassis, move the support rods, and after confirming the gear position configuration of the support rods and the support rod heads, pull out the cylindrical pin, tighten the bolts, and lock the support rods. After the car positioning is completed, the car hoist lifts the car to the height required by the work and starts the hovering mechanism. After the car is repaired, the hovering mechanism is closed, and the hydraulic system is unloaded at the same time, the lifting mechanism is slowly lowered under the action of external force, and the car is reset.

When the hydraulic cylinder is lifted, the lifting height of the lifting pulley is twice the stroke of the hydraulic cylinder, so that the hydraulic cylinder can drive the rod assembly up while the stroke is halved. The lifting efficiency of simply fixing the lifting shell on the hydraulic rod is higher, and because of the buffer of the lifting cable, the lifting shell will be more stable during the lifting process.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , combination, and simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (10)

1. A double-column car hoist, characterized in that: it includes two groups of lifting mechanisms arranged symmetrically; the lifting mechanism includes a vertically placed column, a sliding lifting shell installed on the column, and a hydraulic cylinder fixed on the column , the bearing seat installed on the output end of the hydraulic cylinder, the lifting pulley installed on the bearing seat, the lifting cable, the hammer head fixed on the lifting shell, the support rod assembly installed on the hammer head; the lifting cable bypassing the lifting pulley One end of the lifting cable is fixed on the lifting shell, and the other end of the lifting cable is fixed on the column. 2. A kind of two-column car hoist according to claim 1, characterized in that: the vertically placed lifting shell is slidably placed in the column, the lifting shell is provided with a vertical chute, and the column is provided with a vertical chute. There are slide rails that cooperate with the chute. 3. A double-column car hoist according to claim 2, characterized in that: the lifting shell is in the shape of a square tube, the column is in the shape of a channel steel, the chute is arranged on one side of the lifting shell, and the slide rail is fixed on the column superior. 4. A kind of two-column car hoist according to claim 1, characterized in that: the hoist also includes two sets of balance mechanisms; the balance mechanism includes a first pulley, a second pulley, a third pulley, and a balance cable; The first pulley is installed on the upper part of the column, the second pulley and the third pulley are installed on the lower part of the column, the first pulley and the third pulley are respectively installed in different columns, and the first pulley and the second pulley are installed in the same column ; One end of the balance cable is fixed on one of the lifting shells, and the other end of the balance cable goes around the first pulley, the second pulley, and the third pulley in turn and is fixed on the other lifting shell; the first pulley of a group of balance mechanisms is installed On one of the uprights, the first pulley of another set of balancing mechanisms is installed on the other upright. 5. A double-column car hoist according to claim 4, characterized in that: limit blocks are provided around the upper end and lower end of the hoist shell, and limit blocks for balancing cables to pass through are provided on the limit blocks. Bit hole. 6. A double-column car hoist according to claim 1, characterized in that: the hammer head includes a vertical part and a horizontal part integrally formed, the vertical part is fixed on the lifting shell, and the support bar assembly rotates Installed at the end of the horizontal section. 7. A kind of two-column car hoist according to claim 6, characterized in that: there are four sets of support bar assemblies, wherein two sets of support bar assemblies are respectively installed at both ends of the horizontal part of one of the hammerheads, and in addition Two groups of support rod assemblies are respectively installed on the two ends of the horizontal part of another tup. 8. A kind of two-column car hoist according to claim 6, characterized in that: the bracket assembly includes a bracket, a bracket head fixed on the bracket, a bracket fixed on the bracket head, and a bracket fixed on the bracket head. The rubber block on the support block; the support rod is fixed at the end of the horizontal part of the hammer head by bolts, and the support rod head is provided with a plurality of bolt holes distributed along the length direction of the support rod head, and a part of the support rod head is embedded The inside of the support rod is fixed on the support rod by bolts. The support block includes a cylinder and a supporting plate integrally formed. The cylinder is inserted into the support rod head and fixed on the support rod head, and the rubber block is fixed on the support plate. 9. A double-column car hoist according to claim 2, characterized in that: the slide rail is provided with a plurality of locking teeth arranged sequentially from top to bottom, the upper end surface of the locking teeth is a plane, and the upper end surface of the locking teeth is flat. The lower end surface is an inclined plane; the hoist also includes a hovering mechanism, which includes an iron block, a connecting rod, an electromagnet, a spring, a plunger, and a clamping plate arranged on the hammer head; the electromagnet is fixed inside the hammer head, and the spring One end of the spring is connected to the electromagnet, the other end of the spring is connected to the iron block, the iron block is fixed at one end of the connecting rod, the insertion rod is fixed at the other end of the connecting rod, and the clamping plate is placed horizontally and slidably installed on the hammer head , two protrusions are arranged on the clamping plate, and the insertion rod passes between the two protrusions and is inserted into the cavity of the locking teeth. 10. A double-column car hoist according to claim 8, characterized in that: the rubber block is provided with a water-repellent groove.