Semitrailer traction seat

Abstract

The utility model discloses a semitrailer traction seat, and belongs to the technical field of semitrailers. The semitrailer traction seat further comprises a second supporting column fixedly arranged in the center of the lower shell. A second sliding groove is formed in the inner side of the upper shell and corresponds to the second supporting column. The lower shell is fixedly provided with six groups of springs on the outer sides of the supporting columns II; the upper ends of the six groups of springs are fixedly connected with sliding blocks; a pair of supporting columns I is fixedly arranged on the lower shell and positioned on the two sides of the supporting columns II; first sliding grooves are fixedly formed in the positions, corresponding to the first supporting columns, of the two sides of the sliding block correspondingly. The first supporting columns slide on the inner sides of the first sliding grooves. A communicating hole is fixedly formed in the upper shell; an oil outlet hole is formed in the upper end of the sliding block; the inner side of the oil injection hole is elastically connected with a plugging block; and by arranging the springs, part of vibration can be absorbed when passing through a bumpy road section, the vibration is prevented from being concentrated on a connecting part, and the connecting stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of semi-trailers, and more specifically relates to a semi-trailer traction seat. Background Art

[0002] The fifth wheel is the connecting device between the semi-trailer tractor and the semi-trailer, that is, the semi-trailer tractor fifth wheel. It is covered by the semi-trailer during use, so it is not a conspicuous component, but it is a very critical and important component. As an important assembly component connecting the tractor and the semi-trailer on the semi-trailer, the fifth wheel not only plays the role of towing the semi-trailer and bearing the load of the semi-trailer, but also should be able to withstand the movement conditions of the tractor starting, accelerating, decelerating, turning, braking, etc., as well as the impact when the semi-trailer is connected.

[0003] For example, the semi-trailer traction seat of patent application number CN202220680522.0 discloses a semi-trailer traction seat, including a saddle, a wear-resistant plate, a rubber layer, and a countersunk screw; the wear-resistant plate, the rubber layer, and the saddle are arranged in sequence from top to bottom, and threaded through holes are arranged at the same position, and the countersunk screw penetrates and fixedly connects the wear-resistant plate, the rubber layer, and the saddle; the wear-resistant plate is provided with a first oil hole, the rubber layer is provided with a second oil hole, and the saddle is provided with an oil storage chamber, and the first oil hole, the second oil hole, and the oil storage chamber are connected. Through the setting of the above technical solution, the grease between the wear-resistant plate and the semi-trailer is automatically replenished to ensure the purity and quantity of the grease, and timely respond to the situation where the grease between the semi-trailer and the saddle is gradually reduced or the performance is reduced under complex road conditions.

[0004] Although the above-mentioned semi-trailer drawbar can ensure the purity and quantity of grease, the above-mentioned semi-trailer drawbar cannot absorb a certain amount of vibration during use, and will directly convert the vibration into friction between parts, and the stability of the connection will become worse and worse after long-term use. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a semitrailer traction seat, which absorbs vibration and improves the stability of connection.

[0006] The utility model discloses a semi-trailer traction seat, comprising an upper shell; the lower end of the upper shell abuts against the lower shell; there is a pair of fastening bolts between the upper shell and the lower shell; the upper shell and the lower shell are fixedly connected by fastening bolts; two pairs of anti-skid heat-conducting copper sheets are fixedly arranged on the upper end of the upper shell; a slider is slidably connected to the inner side of the upper shell; the upper end of the slider is fixedly connected to the sponge layer; an oil filling hole is fixedly arranged on the upper end surface of the upper shell; the inner side of the oil filling hole is connected to the sponge layer; and it also includes two support columns fixedly arranged at the center of the lower shell; two slide grooves are provided on the inner side of the upper shell to connect with the two support columns Correspondingly, six groups of springs are fixedly arranged on the outer side of the second support column of the lower shell; the upper ends of the six groups of springs are fixedly connected to the slider; a pair of support columns are fixedly arranged on both sides of the second support column of the lower shell; a slide groove is fixedly arranged on both sides of the slider for one of the support columns; the support column one slides on the inner side of the slide groove; a connecting hole is fixedly provided on the upper shell; an oil outlet hole is provided on the upper end of the slider; the connecting hole, the oil filling hole, the oil outlet hole and the second slide groove are connected; a sealing block is elastically connected to the inner side of the oil filling hole so that the liquid passing through the oil filling hole can only enter the connecting hole in one direction and cannot overflow.

[0007] Preferably, the sponge layer is a high-elastic sponge; and a plurality of groups of mesh holes are arranged on the end surface of the sponge layer.

[0008] Preferably, a limit block is fixedly arranged at the lower end of the upper shell body on the outer side of the spring.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] (1) By setting a spring, part of the vibration can be absorbed when passing through a bumpy road section, preventing the vibration from being concentrated on the connection part, thereby improving the stability of the connection; by setting a support column 1 and a slide groove 1, the slider is more stable when sliding downward, preventing torsion and damage to the slider, thereby improving the stability of the connection;

[0011] (2) By setting a sealing block, the lubricating oil between the upper shell and the lower shell will not flow out from the oil filling hole; by setting the sponge layer and the slide groove to communicate with each other, the lubricating oil can reduce the friction between the traction seat and the connecting part, and at the same time infiltrate the sponge layer to prevent the sponge layer from drying up and breaking after a period of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a top view schematic diagram of the utility model;

[0014] Figure 3 It is a schematic cross-sectional view of the utility model at AA;

[0015] Figure 4It is a schematic cross-sectional view of the utility model at BB;

[0016] Figure 5 It is an enlarged schematic diagram of point I of the present utility model.

[0017] Explanation of the numbers in the figure: 10, upper shell; 11, oil filling hole; 12, anti-slip thermal conductive copper sheet; 13, slider; 14, sponge layer; 15, fastening bolts; 16, lower shell; 17, support column one; 18, spring; 19, support column two; 20, slide groove one; 21, slide groove two; 22, oil outlet hole; 23, connecting hole; 24, blocking block; 25, limit block. DETAILED DESCRIPTION

[0018] Specific embodiment 1: Please refer to Figure 1-5 A semi-trailer traction seat, comprising an upper shell 10; the lower end of the upper shell 10 abuts against the lower shell 16; there is a pair of fastening bolts 15 between the upper shell 10 and the lower shell 16; the upper shell 10 and the lower shell 16 are fixedly connected by the fastening bolts 15; two pairs of anti-slip heat-conducting copper sheets 12 are fixedly arranged on the upper end of the upper shell 10; the inner side of the upper shell 10 is slidably connected to the slider 13; the upper end of the slider 13 is fixedly connected to the sponge layer 14; an oil filling hole 11 is fixedly arranged on the upper end surface of the upper shell 10; the inner side of the oil filling hole 11 is connected to the sponge layer 14; it also includes a support column 19 fixedly arranged at the center of the lower shell 16; a slide groove 21 is provided on the inner side of the upper shell 10 corresponding to the support column 19; six groups of springs 18 are fixedly arranged on the outer side of the support column 19 of the lower shell 16; the upper ends of the six groups of springs 18 are fixedly connected to the slider 13; the lower shell 1 A pair of support columns 17 are fixedly arranged on both sides of the support column 19; a slide groove 20 is fixedly arranged on both sides of the slider 13 for the support column 17; the support column 17 slides inside the slide groove 20; the upper shell 10 is fixedly provided with a connecting hole 23; the upper end of the slider 13 is provided with an oil outlet hole 22; the connecting hole 23, the oil filling hole 11, the oil outlet hole 22, and the slide groove 21 are connected; the inner side of the oil filling hole 11 is elastically connected with a blocking block 24, so that the liquid passing through the oil filling hole 11 can only enter the connecting hole 23 in one direction and cannot overflow; by arranging the spring 18, part of the vibration can be absorbed when passing through the bumpy road section, preventing the vibration from being concentrated on the connection part, thereby improving the stability of the connection; by arranging the support column 17 and the slide groove 20, the slider 13 is more stable when sliding downward, preventing the slider 13 from being damaged by twisting, thereby improving the stability of the connection.

[0019] See also Figure 3-4The sponge layer 14 is a highly elastic sponge; a plurality of meshes are arranged on the end surface of the sponge layer 14; a blocking block 24 is arranged so that the lubricating oil between the upper shell 10 and the lower shell 16 will not flow out from the oil filling hole 11; the sponge layer 14 is connected to the second slide groove 21 so that the lubricating oil can reduce the friction between the traction seat and the connecting part, and at the same time infiltrate the sponge layer 14 to prevent the sponge layer 14 from drying and breaking after being used for a period of time.

[0020] See also Figure 3-4 The lower end of the upper shell 10 is located outside the spring 18 and a limit block 25 is fixedly provided.

[0021] During operation, align the butt joint part with the slider 13, fix it, press the butt joint part on the slider 13, and press the slider 13 down. During the downward pressing of the slider 13, the slider 13 slides down along the slide groove 1 20, and then the slider 13 on the upper side of the slide groove 21 abuts against the support column 2 19. The spring 18 is compressed at this time. After the connection, the spring 18 absorbs the vibration received by the slider 13. At this time, the lubricating oil injected from the inner side of the oil filling hole 11 is poured into the oil outlet hole 22 from the connecting hole 23, and finally the lubricating oil soaks the sponge layer 14 to maintain a stable connection. When the operation During the running process, the vibration generated by the slider 13 and the connection part is absorbed by the sponge layer 14 and the spring 18. When encountering a bumpy and vibrating area, more lubricating oil is released from the oil outlet 22, which reduces friction and infiltrates the sponge layer 14 to enhance the toughness of its fiber structure and stabilize the connection; the anti-slip thermal conductive copper sheet is a metal wavy protrusion with copper alloy as the main raw material. The anti-slip thermal conductive copper sheet can not only assist 12 to quickly dissipate heat into the air, but also prevent the docking part from excessively slipping when the rear traction seat is connected to the docking part.

[0022] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0023] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0024] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A semitrailer traction seat, comprising an upper shell (10); the lower end of the upper shell (10) abuts against a lower shell (16); a pair of fastening bolts (15) are present between the upper shell (10) and the lower shell (16); the upper shell (10) and the lower shell (16) are fixedly connected by the fastening bolts (15); two pairs of anti-skid heat-conducting copper sheets (12) are fixedly arranged on the upper end of the upper shell (10); a slider (13) is slidably connected to the inner side of the upper shell (10); the upper end of the slider (13) is fixedly connected to a sponge layer (14); an oil filling hole (11) is fixedly arranged on the upper end surface of the upper shell (10); the inner side of the oil filling hole (11) is connected to the sponge layer (14); the characteristic is that: The housing (16) further comprises a second support column (19) fixedly arranged at the center of the lower housing (16); a second slide groove (21) is provided on the inner side of the upper housing (10) and corresponds to the second support column (19); six groups of springs (18) are fixedly arranged on the outer side of the second support column (19) of the lower housing (16); the upper ends of the six groups of springs (18) are fixedly connected to the slider (13); a pair of first support columns (17) are fixedly arranged on both sides of the second support column (19) of the lower housing (16); the two sides of the slider (13) are connected to the first support column (17) A slide groove (20) is fixedly provided at each of the two support columns (17); the support column (17) slides inside the slide groove (20); a connecting hole (23) is fixedly provided on the upper shell (10); an oil outlet hole (22) is provided at the upper end of the slide block (13); the connecting hole (23), the oil injection hole (11), the oil outlet hole (22), and the slide groove (21) are connected; and a sealing block (24) is elastically connected to the inner side of the oil injection hole (11) so that the liquid passing through the oil injection hole (11) can only enter the connecting hole (23) in one direction and cannot overflow.

2. A semi-trailer fifth wheel according to claim 1, characterized in that: The sponge layer (14) is a highly elastic sponge; and a plurality of groups of mesh holes are arranged on the end surface of the sponge layer (14).

3. The semitrailer fifth wheel according to claim 1, characterized in that: A limit block (25) is fixedly provided at the lower end of the upper shell (10) and located outside the spring (18).

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