CN215056402U - Sliding door buffering and limiting structure and working vehicle - Google Patents

Abstract

The embodiment of the utility model provides a door buffering limit structure and work vehicle slide, wherein the door buffering limit structure that slides includes: the guide rail is provided with a sliding chute; the limiting block is arranged at one end of the sliding chute and is provided with a groove, and an elastic limiting piece is arranged at the notch of the groove; a sliding structure comprising: the sliding frame can slide along the sliding groove; and the limiting lock column is connected with the sliding frame. In the utility model, the elastic locating part is arranged at the notch of the groove, on one hand, the integrated arrangement of the parts with the functions of locating and buffering is facilitated, the overall volume is reduced, the installation space of the guide rail accessories is saved, and the effective movement track length of the guide rail is increased; on the other hand, simple structure is favorable to simplifying the assembly method, improves the installation effectiveness. In addition, through spacing lock cylinder and the cooperation of elasticity locating part, it is spacing to sliding structure, for direct restriction gyro wheel rolling mode in the traditional structure, can avoid the impact to the gyro wheel, protect the gyro wheel, be favorable to improving the life of gyro wheel.

Description

Sliding door buffering and limiting structure and working vehicle

Technical Field

The utility model relates to the technical field of vehicles, particularly, relate to a door buffering limit structure and an operation vehicle slide.

Background

In the related art, some work vehicles have a sliding door structure, but there are still great limitations in the structure. The guide rail is required to be provided with the limiting mechanism and the buffer mechanism respectively, the total volume of the limiting mechanism and the buffer mechanism is large, and a large number of guide rail lengths can be occupied, so that the effective sliding length of the sliding door on the guide rail is short, and the opening degree of the sliding door is small.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

In view of this, the first aspect of the embodiment of the present invention provides a sliding door buffering and limiting structure.

The embodiment of the utility model provides a second aspect provides an operating vehicle with above-mentioned sliding door buffering limit structure.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a sliding door buffering and limiting structure, including: the guide rail is provided with a sliding groove; the limiting block is arranged at one end of the sliding groove, a groove is formed in the limiting block, and an elastic limiting part is arranged at the notch of the groove; a sliding structure, the sliding structure comprising: the sliding frame can slide along the sliding groove relative to the guide rail; and one end of the limiting lock column is connected with the sliding frame, and the limiting lock column is matched with the elastic limiting part so as to limit the sliding of the sliding frame.

According to the buffering and limiting structure for the sliding door provided by the embodiment of the first aspect of the utility model, the elastic limiting part is arranged at the notch of the groove, on one hand, the integrated arrangement of the parts with limiting and buffering functions is facilitated, the overall volume is reduced, the installation space of the guide rail accessories is further saved, and the effective movement track length of the guide rail is increased; on the other hand, simple structure is favorable to simplifying the assembly method, improves the installation effectiveness. In addition, through the cooperation of spacing lock post and elasticity locating part, carry on spacingly to sliding structure, for direct restriction gyro wheel rolling mode in the traditional structure, can avoid the impact to the gyro wheel, protect the gyro wheel, be favorable to improving the life of gyro wheel.

Particularly, the door buffering limit structure that slides includes guide rail, stopper and sliding structure. The guide rail is provided with a sliding groove, and the sliding door or a roller in the sliding door can slide in the sliding groove of the guide rail. Compared with a revolving door, the sliding door can greatly reduce the space size required when the door is opened, improve the stress state of the vehicle body and facilitate the access of a driver.

Further, the one end of spout is located to the stopper, and the stopper is fixed relatively with the guide rail, and specifically, the stopper can directly link to each other with the guide rail, also can be indirect linking to each other. If the limiting block is directly connected with the guide rail, the limiting block is further detachably connected with the guide rail; or the limiting block is fixedly connected with the guide rail; or the limiting block and the guide rail are of an integrated structure. Through locating the stopper in the one end of spout, can accomplish the biggest with the aperture of sliding door in limited space.

In addition, the sliding structure comprises a sliding frame and a limit lock cylinder. The sliding frame can slide along the sliding groove relative to the guide rail, and the sliding frame can slide relative to the guide rail, and the sliding direction is along the length direction of the sliding groove. The sliding structure can also comprise a sliding door which slides relative to the guide rail through the sliding frame. Furthermore, one end of the limiting lock column is connected with the sliding frame, and particularly, the end part of the limiting lock column is detachably connected with the sliding frame, so that the limiting lock column is convenient to mount and dismount and is beneficial to maintenance and replacement of the limiting lock column; or the end part of the limiting lock column is fixedly connected with the sliding frame, so that the processing is convenient; or the end part of the limiting lock column and the sliding frame are of an integrated structure, and compared with a post-processing mode, the limiting lock column is good in mechanical property and high in connection strength. Because spacing lock post and carriage formula structure as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation step, improve the installation effectiveness.

Furthermore, a groove is formed in the limiting block, an elastic limiting part is arranged at the notch of the groove, and the limiting lock column is matched with the elastic limiting part to limit sliding of the sliding frame. It can be understood that during the sliding process of the sliding frame along the sliding groove, when the sliding frame slides to the position of the notch of the groove and is close to the limit position, the limit lock cylinder starts to be matched with the elastic limit piece. And the sliding frame is located at the limit position until the limit lock column is completely matched with the elastic limiting part, the sliding door is in an open state, and a driver can come in and go out. In other words, the elastic limiting part not only can play a limiting role, but also can buffer and decelerate the limiting lock cylinder. Through the cooperation of spacing lock post and elasticity locating part, can restrict the slip of carriage.

Furthermore, in the process that the limiting lock column extends into the groove, the circumferential side wall of the limiting lock column is attached to the inner wall of the groove, the sliding structure can be decelerated through friction force until the end part of the limiting lock column abuts against the bottom wall of the groove, and the sliding structure is located at the limit position; or, the in-process that spacing lock post stretched into the recess, the circumference lateral wall of spacing lock post and the inner wall contactless of recess, and the tip that directly passes through spacing lock post offsets with the diapire of recess and realizes spacingly.

Furthermore, the inner wall of the groove can be provided with a rubber layer which is made of rubber and has certain elasticity. Through set up the rubber layer at the inner wall of recess, after spacing lock post stretched into the recess, the rubber layer can play the effect of buffering, can avoid the tip of spacing lock post and the rigid collision of the cell wall of recess to a certain extent.

The elastic limiting piece is arranged at the notch of the groove, so that the groove of the limiting piece and the elastic limiting piece are favorably arranged in an integrated manner, and the sliding structure moving to the limit position is limited and buffered, so that on one hand, the sliding door sliding to the specified position can be limited; on the other hand, the excessive opening degree of the anti-slip door affects the overall arrangement of the working vehicle; moreover, alleviate the impact of sliding door to the slide rail tip, be favorable to improving life, the noise abatement.

Further, the sliding structure can further comprise a roller, the roller is rotatably connected to the sliding frame, and the roller rolls in the sliding groove, so that the sliding frame can slide relative to the guide rail. Through the cooperation of spacing lock post and recess, carry on spacingly to sliding structure, for direct restriction gyro wheel rolling mode in the traditional structure, can avoid the impact to the gyro wheel, be favorable to improving the life of gyro wheel.

It is worth explaining that the limiting block and the limiting lock cylinder are made of steel materials, so that the limiting block and the limiting lock cylinder are high in strength and have good impact resistance.

Additionally, the utility model provides an among the above-mentioned scheme door buffering limit structure that slides can also have following additional technical characteristics:

among the above-mentioned technical scheme, spacing lock post includes: one end of the first limiting part is connected with the sliding frame, and the first limiting part is cylindrical; the sliding frame comprises a first limiting part, a second limiting part, a sliding frame and a sliding frame, wherein the sliding frame is arranged on the sliding frame, and the sliding frame is arranged on the sliding frame.

In this technical scheme, spacing lock post includes first spacing portion and second spacing portion. The two ends of the first limiting part are respectively connected with the sliding frame and the second limiting part. Specifically, the sliding frame, the first limiting part and the second limiting part are fixedly connected; or the sliding frame, the first limiting part and the second limiting part are of an integrated structure, and compared with a post-processing mode, the sliding frame, the first limiting part and the second limiting part have good mechanical properties and higher connection strength. Because the three formula structures as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness.

Furthermore, the first limiting part is cylindrical, the second limiting part is spherical, and the diameter of the cross section of the first limiting part is smaller than that of the second limiting part, namely the diameter of the circular cross section of the cylinder is smaller than that of the sphere. When the sliding structure moves to the limit position, the second spherical limiting part firstly extends into the elastic limiting part, the sliding structure continues to move, and the first cylindrical limiting part continues to extend into the groove through the elastic limiting part. And until one end of the second limiting part, which is far away from the first limiting part, is abutted against the bottom wall of the groove, the sliding structure is positioned at the limit position, and the sliding structure does not continue to slide. Set up to spherical through spacing portion with the second, be favorable to increase and elastic locating part direct contact's area, and then can increase the frictional force of elastic locating part and spacing lock post, play spacing and buffering speed reduction's effect, alleviate the rigid collision between the diapire of spacing lock post tip and recess, noise reduction.

In the above technical scheme, the elastic limiting part is annular, and the inner diameter of the elastic limiting part is smaller than the diameter of the second limiting part.

In this technical scheme, through setting up the elasticity locating part into the annular, and the internal diameter of elasticity locating part is less than the diameter of the spacing portion of second, when the spacing portion of second process annular elasticity locating part and stretch into the in-process of recess, the spacing portion of second can extrude the elasticity locating part and make it take place deformation, be favorable to increasing the area of the spacing portion of second and elasticity locating part direct contact, and then can increase the frictional force of elasticity locating part and spacing lock post, thereby the elasticity locating part can play spacing and buffering speed reduction's effect.

In the technical scheme, the elastic buffer parts are arranged in the grooves and are used for being abutted to the limiting lock cylinders.

In this technical scheme, through set up elastic buffer in the recess, the in-process that spacing lock post stretched into the recess can be successively through elastic locating part and elastic buffer. Because elastic buffer can with spacing lock post butt, therefore elastic buffer not only can cushion spacing lock post, can also alleviate the rigid collision that takes place between the tip of spacing lock post and the recess inner wall, reduce the noise.

In the above technical solution, the elastic limiting member is connected to the elastic buffering member and both are integrally formed.

In this technical scheme, through with elastic locating part and elastic buffer spare integrated into one piece, both formula structures as an organic whole promptly are favorable to integrating elastic locating part and elastic buffer spare and set up, carry out spacing and buffering to the sliding structure who moves to extreme position, and then can carry on spacingly to the door that slides to the assigned position.

It should be noted that the limiting buffer structure formed by the elastic limiting member and the elastic buffer member may be similar to a gourd.

Among the above-mentioned technical scheme, sliding construction still includes: at least one roller, at least one roller rotate with the carriage and be connected, the gyro wheel can roll along the spout.

In this technical scheme, sliding construction still includes the gyro wheel, and the gyro wheel rotates with the carriage to be connected, and the gyro wheel can rotate relative the carriage promptly, and further, the gyro wheel can roll along the spout, can understand, rolls in the spout through the gyro wheel to the carriage can slide relative to the guide rail.

It is worth mentioning that the number of the rollers is at least one, i.e. the rollers may be one, two or more. The number of the rollers is flexibly set according to actual requirements in consideration of stability of sliding, cost and other factors.

Among the above-mentioned technical scheme, sliding construction still includes: protective structure, protective structure locate the one end that spacing lock post is close to the carriage.

In this technical scheme, sliding construction still includes protective structure, and protective structure locates the one end that spacing lock post is close to the carriage, through setting up protective structure, can rotate the gyro wheel of being connected with the carriage and play the effect of protection, further reduces the impact that spacing in-process brought the gyro wheel, improves the life of gyro wheel.

Among the above-mentioned technical scheme, sliding construction still includes: the sliding frame is arranged on the support shaft, and the roller is rotatably sleeved on the support shaft.

In the technical scheme, the sliding structure further comprises a support shaft, the support shaft is arranged on the sliding frame, and specifically, the support shaft and the sliding frame are detachably connected, so that the mounting and the dismounting are convenient, and the roller can be maintained and replaced; or the support shaft is fixedly connected with the sliding frame; or the support shaft and the sliding frame are of an integrated structure, and compared with a post-processing mode, the mechanical property is good, and the connection strength is higher. In addition, the supporting shaft can rotate relative to the sliding frame; alternatively, the support shaft is fixed relative to the carriage.

Further, the supporting shaft is rotationally sleeved with the roller, and it can be understood that the roller can rotate relative to the supporting shaft, and then the roller can roll in the sliding groove.

It is worth mentioning that the number of the support shafts is at least one, i.e. the support shafts may be one, two or more. The number of the supporting shafts is determined by the number of the rollers, and each supporting shaft may correspond to one or more rollers, i.e., one or more rollers may be provided on the outer side of each supporting shaft.

Among the above-mentioned technical scheme, protective structure is the protection piece, protection piece and spacing lock post integrated into one piece.

In this technical scheme, through setting up protective structure into the protective block, and protective block and spacing lock post integrated into one piece, for the mode of postprocessing, mechanical properties is good, and joint strength is higher. Because protection piece and spacing lock post formula structure as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness.

It is noted that the shape of the guard block may be spherical, cylindrical or other shape.

An embodiment of the second aspect of the present invention provides an operating vehicle, including: an apparatus body; the buffering and limiting structure of the sliding door in any embodiment is arranged on the equipment body.

According to the utility model discloses the embodiment of second aspect provides an operation vehicle, including the equipment body with slide a buffering limit structure, slide a buffering limit structure and locate on the equipment body. Specifically, the sliding door buffering and limiting structure can be arranged in a cab or other positions of the work vehicle.

Through set up the door that slides in driver's cabin department, for the revolving door, the door that slides can reduce required space size when the door is opened greatly, improves the stress of automobile body, makes things convenient for navigating mate's discrepancy.

It is worth mentioning that the types of work vehicles are various, such as: pump trucks, vehicle pumps, trucks, fire engines, and the like.

In addition, since the working vehicle includes any sliding door buffering and limiting structure in the embodiment of the first aspect, any beneficial effect of the embodiment of the first aspect is achieved, and details are not repeated herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 shows a schematic structural diagram of a sliding door buffering and limiting structure according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a sliding door buffering and limiting structure according to another embodiment of the present invention;

fig. 3 shows a schematic structural diagram of a buffering and limiting structure of a sliding door according to another embodiment of the present invention;

fig. 4 is a schematic structural diagram of a limiting block according to an embodiment of the present invention;

fig. 5 shows a cross-sectional view of a stop block according to one embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a work vehicle according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

100: the sliding door is provided with a buffer limiting structure; 110: a guide rail; 111: a chute; 120: a limiting block; 121: a groove; 1211: a notch; 122: a step structure; 130: an elastic limiting part; 140: a sliding structure; 141: a carriage; 142: a limiting lock cylinder; 1421: a first limiting part; 1422: a second limiting part; 143: a roller; 144: a protective structure; 145: a support shaft; 150: positioning the bump; 160: a connecting member; 170: an elastic buffer member; 200: a work vehicle; 210: the equipment body.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

An embodiment of a center sliding door buffering and limiting structure 100 and a work vehicle 200 according to the present invention will be described below with reference to fig. 1 to 6.

Example one

As shown in fig. 1 to 5, the present embodiment provides a sliding door buffering and limiting structure 100, which includes a guide rail 110, a limiting block 120, and a sliding structure 140. The guide rail 110 is provided with a sliding slot 111, and the sliding door or a roller 143 in the sliding door can slide in the sliding slot 111 of the guide rail 110. Compared with a revolving door, the sliding door can greatly reduce the space size required when the door is opened, improve the stress state of the vehicle body and facilitate the access of a driver.

Further, the limiting block 120 is disposed at one end of the sliding groove 111, and the limiting block 120 and the guide rail 110 are relatively fixed, specifically, the limiting block 120 and the guide rail 110 may be directly connected or indirectly connected. If the limiting block 120 is directly connected with the guide rail 110, further, the limiting block 120 is detachably connected with the guide rail 110; or, the limiting block 120 is fixedly connected with the guide rail 110; or, the stopper 120 and the guide rail 110 are of an integrated structure. By positioning the stopper 120 at one end of the sliding groove 111, the opening degree of the sliding door can be maximized in a limited space.

Further, the sliding structure 140 includes a sliding frame 141 and a limit lock cylinder 142. The sliding frame 141 can slide along the sliding groove 111 relative to the guide rail 110, and it is understood that the sliding frame 141 can slide relative to the guide rail 110, and the sliding direction is along the length direction of the sliding groove 111. The sliding structure 140 may further include a sliding door that slides with respect to the guide rail 110 by a sliding frame 141. Further, one end of the limit lock cylinder 142 is connected with the sliding frame 141, and specifically, the end of the limit lock cylinder 142 is detachably connected with the sliding frame 141, so that the limit lock cylinder is convenient to mount and dismount, and the maintenance and replacement of the limit lock cylinder 142 are facilitated; or, the end of the limit lock cylinder 142 is fixedly connected with the sliding frame 141, so that the processing is convenient; or, the end of the limit lock cylinder 142 and the sliding frame 141 are of an integrated structure, so that the mechanical property is good and the connection strength is higher compared with a post-processing mode. Because the limit lock cylinder 142 and the sliding frame 141 are of an integrated structure, the number of parts is reduced, the installation steps can be reduced, and the installation efficiency is improved.

Further, a groove 121 is disposed on the limiting block 120, an elastic limiting member 130 is disposed at a notch 1211 of the groove 121, and the limiting lock cylinder 142 cooperates with the elastic limiting member 130 to limit the sliding of the sliding frame 141. It can be understood that during the sliding of the sliding frame 141 along the sliding slot 111, when the sliding frame 141 slides to the position near the limit position at the notch 1211 of the groove 121, the limit lock cylinder 142 starts to engage with the elastic limit piece 130. Until the limit lock cylinder 142 is completely matched with the elastic limiting part 130, the sliding frame 141 is located at the limit position, the sliding door is in an open state, and a driver can go in and out. In other words, the elastic limiting member 130 not only can play a limiting role, but also can buffer and decelerate the limiting lock cylinder 142. The sliding of the sliding frame 141 can be restricted by the cooperation of the restriction lock cylinder 142 and the elastic restriction member 130.

Further, in the process that the limiting lock cylinder 142 extends into the groove 121, the circumferential side wall of the limiting lock cylinder 142 is attached to the inner wall of the groove 121, at this time, the sliding structure 140 can be decelerated through friction force until the end of the limiting lock cylinder 142 abuts against the bottom wall of the groove 121, and at this time, the sliding structure 140 is at the limit position; or, in the process that the limiting lock cylinder 142 extends into the groove 121, the circumferential side wall of the limiting lock cylinder 142 is not in contact with the inner wall of the groove 121, and the limiting is realized by directly abutting the end part of the limiting lock cylinder 142 against the bottom wall of the groove 121.

The elastic limiting piece 130 is arranged at the notch 1211 of the groove 121, so that the groove 121 of the limiting piece 120 and the elastic limiting piece 130 are favorably arranged in an integrated manner, the sliding structure 140 moving to the limit position is limited and buffered, and on one hand, the sliding door sliding to the specified position can be limited; on the other hand, the excessive opening of the slip prevention door affects the overall arrangement of the work vehicle 200; moreover, alleviate the impact of sliding door to the slide rail tip, be favorable to improving life, the noise abatement.

Further, the sliding structure 140 may further include a roller 143, and the roller 143 is rotatably connected to the sliding frame 141, and the sliding frame 141 can slide relative to the guide rail 110 by rolling the roller 143 in the sliding groove 111. Through the cooperation of spacing lock cylinder 142 and recess 121, carry on spacingly to sliding structure 140, for direct restriction gyro wheel 143 rolling mode in the traditional structure, can avoid the impact to gyro wheel 143, be favorable to improving the life of gyro wheel 143.

It should be noted that the limiting block 120 and the limiting lock cylinder 142 are made of steel material, and have high strength and good impact resistance.

In another embodiment, the inner wall of the groove 121 is provided with a rubber layer, and the rubber layer is made of rubber and has certain elasticity. Through setting up the rubber layer at the inner wall of recess 121, after spacing lock cylinder 142 stretched into recess 121, the rubber layer can play the effect of buffering, can avoid the rigid collision of the tip of spacing lock cylinder 142 and the cell wall of recess 121 to a certain extent.

Example two

As shown in fig. 2 and fig. 3, in the first embodiment, the position-limiting lock cylinder 142 further includes a first position-limiting portion 1421 and a second position-limiting portion 1422. Two ends of the first position-limiting portion 1421 are connected to the sliding frame 141 and the second position-limiting portion 1422, respectively. Specifically, the sliding frame 141, the first position-limiting part 1421 and the second position-limiting part 1422 are fixedly connected to each other; alternatively, the sliding frame 141, the first position-limiting portion 1421, and the second position-limiting portion 1422 are integrated, and have good mechanical properties and higher connection strength compared to a post-processing method. Because the three formula structures as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness.

Further, the first position-limiting portion 1421 is cylindrical, the second position-limiting portion 1422 is spherical, and the diameter of the cross section of the first position-limiting portion 1421 is smaller than the diameter of the second position-limiting portion 1422, that is, the diameter of the circular cross section of the cylinder is smaller than the diameter of the sphere. When the sliding structure 140 moves to the limit position, the spherical second position-limiting part 1422 first extends into the elastic limiting member 130 located in the notch 1211 of the groove 121, the sliding structure 140 continues to move, and the cylindrical first position-limiting part 1421 starts to extend into the groove 121 through the elastic limiting member 130. Until the end of the second position-limiting part 1422 away from the first position-limiting part 1421 abuts against the bottom wall of the groove 121, the sliding structure 140 is at the limit position and does not slide any more. Set up to spherical through the spacing portion 1422 of second, be favorable to the increase and the area of elasticity locating part 130 direct contact, and then can increase the frictional force between elasticity locating part 130 and the spacing lock post 142, play spacing and buffering speed reduction's effect, alleviate the rigid collision between the tip of spacing lock post 142 and the diapire of recess 121, noise abatement.

In another embodiment, as shown in fig. 3 to fig. 5, the elastic limiting member 130 is configured to be annular, and the inner diameter of the elastic limiting member 130 is smaller than the diameter of the second limiting portion 1422, when the second limiting portion 1422 passes through the annular elastic limiting member 130 and extends into the groove 121, the second limiting portion 1422 will press the elastic limiting member 130 to deform, which is beneficial to increase the area of the second limiting portion 1422 directly contacting the elastic limiting member 130, and further can increase the friction between the elastic limiting member 130 and the limiting lock cylinder 142, so that the elastic limiting member 130 can perform the limiting and buffering deceleration functions.

In another embodiment, as shown in fig. 5, by disposing the elastic buffer 170 in the groove 121, the limiting lock cylinder 142 passes through the elastic limiting element 130 and the elastic buffer 170 in sequence during the process of extending into the groove 121. Because the elastic buffer member 170 can abut against the limit lock cylinder, the elastic buffer member 170 can buffer the limit lock cylinder 142, and can reduce the rigid collision between the end of the limit lock cylinder 142 and the inner wall of the groove 121, thereby reducing the noise.

Further, as shown in fig. 5, the elastic limiting member 130 and the elastic buffering member 170 are integrally formed, that is, the two are integrated, so that the elastic limiting member 130 and the elastic buffering member 170 are advantageously integrated, the sliding structure 140 moving to the limit position is limited and buffered, and the sliding door sliding to the designated position can be limited.

It should be noted that the limiting and buffering structure formed by the elastic limiting element 130 and the elastic buffering element 170 may be similar to a gourd.

EXAMPLE III

As shown in fig. 2, in addition to the first embodiment, the sliding structure 140 further includes a roller 143, the roller 143 is rotatably connected to the sliding frame 141, that is, the roller 143 can rotate relative to the sliding frame 141, and further, the roller 143 can roll along the sliding slot 111, it can be understood that the sliding frame 141 can slide relative to the guide rail 110 by the roller 143 rolling in the sliding slot 111.

It is noted that the number of the rollers 143 is at least one, i.e., the rollers 143 may be one, two, or more. The number of the rollers 143 is flexibly set according to actual demands in consideration of stability of sliding, cost, and other factors.

Example four

As shown in fig. 2 and 3, on the basis of the third embodiment, the sliding structure 140 further includes a protection structure 144, the protection structure 144 is disposed at one end of the position-limiting lock column 142 close to the sliding frame 141, and by disposing the protection structure 144, the roller 143 rotatably connected to the sliding frame 141 can be protected, so that impact on the roller 143 during position limiting is further reduced, and the service life of the roller 143 is prolonged.

Further, protective structure 144 is the protection piece, and protection piece and spacing lock post 142 integrated into one piece, and for the mode of post-processing, mechanical properties is good, and joint strength is higher. Because protection piece and spacing lock post 142 formula structure as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness.

It is noted that the shape of the guard block may be spherical, cylindrical or other shape.

EXAMPLE five

As shown in fig. 2, on the basis of the third embodiment, the sliding structure 140 further includes a support shaft 145, the support shaft 145 is disposed on the sliding rack 141, specifically, the support shaft 145 and the sliding rack 141 are detachably connected, so as to facilitate installation and disassembly, and further, the roller 143 can be maintained and replaced; alternatively, the support shaft 145 is fixedly connected with the sliding frame 141; alternatively, the support shaft 145 and the carriage 141 are formed integrally, and have a high mechanical property and a high connection strength as compared with a post-processing method. In addition, the support shaft 145 is rotatable with respect to the carriage 141; alternatively, the support shaft 145 is fixed relative to the carriage 141.

Further, the roller 143 is rotatably sleeved on the supporting shaft 145, and it is understood that the roller 143 can rotate relative to the supporting shaft 145, and the roller 143 can roll in the sliding groove 111.

It is noted that the number of the support shafts 145 is at least one, that is, the support shafts 145 may be one, two or more. The number of the support shafts 145 is determined by the number of the rollers 143, and each support shaft 145 may correspond to one or more rollers 143, i.e., one or more rollers 143 may be provided on the outer side of each support shaft 145.

EXAMPLE six

As shown in fig. 2 and fig. 3, on the basis of the first embodiment, the sliding door buffering and limiting structure 100 further includes a positioning protrusion 150 disposed at one end of the sliding groove 111, and the positioning protrusion 150 is connected to the guide rail 110. It should be noted that the positioning protrusion 150 is detachably connected to the guide rail 110; alternatively, the positioning protrusion 150 is fixedly connected to the guide rail 110; or, the positioning protrusion 150 and the guide rail 110 are of an integrated structure, and compared with a post-processing method, the mechanical property is good, and the connection strength is higher. Because the positioning lug 150 and the guide rail 110 are of an integrated structure, the number of parts is reduced, the installation steps are reduced, and the installation efficiency is improved. Further, the limiting block 120 is connected to the positioning protrusion 150, and specifically, the limiting block 120 and the positioning protrusion 150 may be connected by a bolt, which facilitates installation and detachment.

Further, as shown in fig. 4, the limiting block 120 further includes a step structure 122, the limiting block 120 abuts against the positioning protrusion 150 through the step structure 122, specifically, the step structure 122 includes a step surface, the step surface abuts against the surface of the positioning protrusion 150, and by setting the step structure 122 and the positioning protrusion 150, the worker can quickly find the placing position when installing the limiting block 120, so as to improve the working efficiency. Further, the step structure 122 and the positioning projection 150 are connected by a connecting member 160, and the connecting member 160 may be a bolt or other structure.

Further, the connecting member 160 is a screw. Through setting up connecting piece 160 as the screw, only need rotate the screw and make the screw stretch into stopper 120 and locating convex block 150, can realize both relatively fixed, convenient and fast, the operation of being convenient for is favorable to improving the installation effectiveness.

EXAMPLE seven

As shown in fig. 6, the present embodiment provides a work vehicle 200, which includes an apparatus body 210 and the sliding door buffering and limiting structure 100 in any of the above embodiments, wherein the sliding door buffering and limiting structure 100 is disposed on the apparatus body 210. Specifically, the sliding door bump stopper structure 100 may be provided in the cab or other location of the work vehicle 200.

Through set up the door that slides in driver's cabin department, for the revolving door, the door that slides can reduce required space size when the door is opened greatly, improves the stress of automobile body, makes things convenient for navigating mate's discrepancy.

It is to be noted that the types of the work vehicle 200 are various, such as: pump trucks, vehicle pumps, trucks, fire engines, and the like.

According to the embodiment of the sliding door buffering and limiting structure and the working vehicle, the elastic limiting part is arranged at the notch of the groove, on one hand, the integrated arrangement of parts with limiting and buffering functions is facilitated, the overall size is reduced, the installation space of a guide rail accessory is further saved, and the effective movement track length of the guide rail is increased; on the other hand, simple structure is favorable to simplifying the assembly method, improves the installation effectiveness. In addition, through the cooperation of spacing lock post and elasticity locating part, carry on spacingly to sliding structure, for direct restriction gyro wheel rolling mode in the traditional structure, can avoid the impact to the gyro wheel, protect the gyro wheel, be favorable to improving the life of gyro wheel.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", 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 unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A sliding door buffering and limiting structure (100) is characterized by comprising:

the guide rail (110), the said guide rail (110) has concrete chutes (111);

the limiting block (120) is arranged at one end of the sliding groove (111), a groove (121) is formed in the limiting block (120), and an elastic limiting piece is arranged at the notch of the groove (121);

a sliding structure (140), the sliding structure (140) comprising:

a sliding frame (141), the sliding frame (141) being slidable along the sliding groove (111) relative to the guide rail (110);

the limiting lock cylinder (142), one end of limiting lock cylinder (142) with carriage (141) link to each other, limiting lock cylinder (142) with the cooperation of elasticity locating part to the slip of restriction carriage (141).

2. The sliding door cushioning curb structure (100) of claim 1, characterized in that, the curb lock post (142) includes:

the first limiting part (1421), one end of the first limiting part (1421) is connected with the sliding frame (141), and the first limiting part (1421) is cylindrical;

a second limiting part (1422), the second limiting part (1422) is connected with one end of the first limiting part (1421) far away from the sliding frame (141), the second limiting part (1422) is spherical,

the cross-sectional diameter of the first limiting part (1421) is smaller than the diameter of the second limiting part (1422).

3. The sliding door buffering and limiting structure (100) according to claim 2, wherein the elastic limiting member is ring-shaped, and an inner diameter of the elastic limiting member is smaller than a diameter of the second limiting portion (1422).

4. The sliding door buffering and limiting structure (100) according to claim 1, wherein an elastic buffer is arranged in the groove and used for abutting against the limiting lock cylinder (142).

5. The sliding door buffering and limiting structure (100) according to claim 4, wherein the elastic limiting member is connected to the elastic buffering member and is integrally formed with the elastic buffering member.

6. The sliding door bump stop (100) of claim 1, wherein said sliding structure (140) further comprises:

at least one roller (143), at least one roller (143) is connected with the sliding rack (141) in a rotating mode, and the rollers (143) can roll along the sliding grooves (111).

7. The sliding door bump stop (100) of claim 6, wherein said sliding structure (140) further comprises:

the protective structure (144) is located between the limiting lock cylinder (142) and the first roller, the first roller is the roller closest to the limiting block (120), and the protective structure is used for abutting against the side wall of the periphery of the groove (121).

8. The sliding door cushioning and limiting structure (100) of claim 1, further comprising:

the positioning lug (150) is arranged at one end of the sliding groove (111), the positioning lug (150) is connected with the guide rail (110), and the limiting block (120) is connected with the positioning lug (150).

9. The sliding door cushioning and restraining structure (100) of claim 7, wherein said guard structure (144) is a guard block integrally formed with said restraining lock post (142).

10. A work vehicle (200), characterized by comprising:

an apparatus body (210);

the sliding door buffering and limiting structure (100) as claimed in any one of claims 1 to 9 is arranged on the equipment body (210).

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