Foldable auxiliary seat, cab and mining dump truck

Abstract

The utility model discloses a foldable auxiliary seat, a cab and a mining dump truck. The foldable auxiliary seat comprises a supporting seat, a connecting seat and a fixing seat, the supporting base is provided with a connecting point V located at the bottom and a sliding rail located in the middle. Two ends of the connecting seat are respectively provided with a connecting point I and a connecting point II; the connecting point I and the connecting point V are connected to form a first hinge point; the fixing base is provided with a connecting point III located in the middle and a connecting point IV located at the tail, the connecting point III and the connecting point II are connected to form a second hinge point, and the connecting point IV and the sliding rail are used in cooperation to form a sliding point; when the connecting point IV moves to the lower end point of the sliding rail, the connecting seat is locked to be in a horizontal state; when the connecting point IV moves upwards, the connecting base turns downwards to be gradually close to the supporting base, and when the connecting point IV moves to the starting point of the upper portion of the sliding rail, the connecting base, the fixing base and the supporting base are folded together. The utility model has the characteristics of simple structure, space saving and convenience in use.

Description

Technical Field

[0001] The utility model relates to a foldable auxiliary seat and belongs to the technical field of dump trucks. Background Art

[0002] Mining dump trucks are difficult to drive, and there is a need for vehicle guidance. The seat layout of most rigid vehicles continues the concept of heavy-duty highway trucks, with a single driver seat in the front of the cab and a large bunk bed behind the seat. This design is only suitable for situations where the cab space is large enough. When the space inside the cab is small, there is no reasonable space to arrange the co-seat behind the driver's seat. At this time, a foldable co-seat is required to improve space utilization. At present, some seats also have a folding function, but the physical feel is poor. Some products rely on human gravity to flatten the seat cushion, and the operating conditions of mining vehicles are poor. When the human body leaves the seat cushion during bumps, the seat cushion will automatically rebound under the action of the rebound device, which poses a certain risk. In addition, the general seat bracket material is weak and not suitable for mining. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the utility model proposes a foldable auxiliary seat, which solves the problem of seat arrangement when the space in the cab is narrow.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a foldable auxiliary seat, comprising a rigid component and a soft component mounted on the rigid component for direct contact with a human body; the rigid component comprises:

[0006] A support base having a connection point V at the bottom and a slide rail at the middle;

[0007] The connecting seat has two connecting points at each end, namely, connecting point I and connecting point II; connecting point I is connected with the connecting point V to form a first hinge point;

[0008] The fixed seat has a connection point III located in the middle and a connection point IV located at the rear. The connection point III is connected to the connection point II to form a second hinge point, and the connection point IV cooperates with the slide rail to form a sliding point. When the connection point IV moves to the lower end of the slide rail, the connection seat is locked in a horizontal state; when the connection point IV moves upward, the connection seat flips downward and gradually approaches the support seat. When the connection point IV moves to the upper starting point of the slide rail, the connection seat, the fixed seat and the support seat are folded together.

[0009] In some embodiments, the support seat is a groove-type structure, including a vertically placed base plate and a pair of opposite side plates connected to the base plate, the base plate is used to be fixed on the pre-installation surface, and the middle part of the two side plates is respectively provided with a slide rail opposite to each other; the slide rail is a J-shaped sliding groove, and after the sliding groove is aligned with the lower connecting hole on the fixed seat, the two are connected with a connecting member to form the sliding point; the bottom of the two side plates is respectively provided with a coaxially arranged lower connecting hole, and after the lower connecting hole on the side plate is aligned with the lower connecting hole on the connecting seat, the two are connected with a connecting member to form the first hinge point.

[0010] In some embodiments, the two side panels are both flanged outward at 90 degrees at the top of the sides away from the bottom panel, and the backrest of the soft component is mounted on the flanges on both sides.

[0011] In some embodiments, the fixing seat is a groove-type structure, including a top plate with a bend and a pair of opposite side plates connected to the top plate; the top plate is equipped with a seat cushion in the soft component; a coaxially arranged upper connecting hole is provided in the middle of each of the two side plates, and after the upper connecting hole on the side plate is aligned with the upper connecting hole on the connecting seat, the two are connected by a connecting piece to form the second hinge point.

[0012] In some embodiments, the connecting seat is a groove-type structure, including a base plate and a pair of opposite side plates connected to the base plate; one end of the two side plates is respectively provided with a coaxially arranged lower connecting hole, and after the lower connecting hole on the side plate is aligned with the lower connecting hole on the support seat, the two are connected by a connecting member to form the first hinge point; the other end of the two side plates is respectively provided with a coaxially arranged upper connecting hole, and after the upper connecting hole on the side plate is aligned with the upper connecting hole on the fixed seat, the two are connected by a connecting member to form the second hinge point.

[0013] In some embodiments, a tension component is installed between the support seat and the connecting seat. During the retraction process of the fixing seat, the connecting seat automatically moves toward the support seat under the action of the tension component until it is retracted into place.

[0014] In some embodiments, the tension component is composed of at least one tension spring; the at least one tension spring is installed between the bottom plates facing the support seat and the connecting seat.

[0015] In some embodiments, the connecting piece used by the first hinge point, the second hinge point and the sliding point is composed of the following components:

[0016] A hollow pin is used to penetrate into two connection holes aligned in the first hinge point or the second hinge point; or to penetrate into a connection hole and a sliding groove aligned in the sliding point;

[0017] Two pads with circular holes in the center are arranged on both end surfaces of the pin shaft respectively, and the three pads are arranged coaxially;

[0018] Bolts and nuts, wherein the bolts penetrate through two pads and the pin shaft and are fastened by nuts to limit the pin shaft in two connecting holes or in a connecting hole and a sliding groove.

[0019] In some embodiments, bushings with interference fit are installed in the connection holes at the first hinge point, the second hinge point and the sliding point, and the pin shaft is inserted into the bushings with clearance fit between the two.

[0020] In some embodiments, the support seat, the connecting seat and the fixing seat are each provided with at least one weight-reducing hole for realizing a lightweight design.

[0021] In a second aspect, the utility model provides a cab equipped with the above-mentioned foldable auxiliary seat.

[0022] In a third aspect, the utility model provides a mining dump truck equipped with the above-mentioned foldable auxiliary seat; or, equipped with the above-mentioned cab.

[0023] Based on the application of the above technical solutions, the utility model has the following beneficial effects compared with the prior art:

[0024] It solves the seat arrangement problem when the cab space is narrow; when the seat is not in use, the seat plate is folded up, and the space in front of the seat cushion is convenient for people to pass through. When the seat is in use, the seat cushion can be directly pulled down and laid flat for use; the sliding hole is set to J shape, and the intersection is smoothed to facilitate the movement of the pin shaft in the slideway; wear-resistant bushings are pre-installed at the round holes to reduce structural wear when the pin shaft rotates; the whole structure is reasonably designed, the tension spring stroke is short, and the fixing effect is good. When the seat cushion is laid flat for use, the tension spring can tighten the seat cushion at the rear side to prevent the seat from shaking during bumps; weight-reducing holes are opened on the main structural parts to further optimize the tension spring force and extend the life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of the structure of the auxiliary seat of the utility model when the seat cushion is unfolded;

[0028] Figure 2This is a schematic diagram of the auxiliary seat structure decomposition of the utility model;

[0029] Figure 3 The support structure of the utility model is shown in FIG. Figure 1 ;

[0030] Figure 4 The support structure of the utility model is shown in FIG. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the structure of the connecting seat described in the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the fixing seat described in the utility model;

[0033] Figure 7 This is a schematic diagram of the bushing structure described in the utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the auxiliary seat of the utility model when the seat cushion is folded;

[0035] Fig. 9 This is a schematic diagram of another use embodiment of the auxiliary seat described in the utility model.

[0036] Explanation of the accompanying drawings: 1. Support seat; 2. Connecting seat; 3. Fixed seat; 4. Seat cushion; 5. Backrest; 11. Bolt; 30. Bolt; 41. Bolt; 61. Bolt; 12. Pad; 13. First pin; 31. Second pin; 42. Third pin; 14: Nut; 21: Bushing; 22. Tension spring; 1-5. Sliding groove; 1-5-1. Upper starting point; 1-5-2. Lower end point; 1-6. Lower connecting hole; 2-1. Upper connecting hole; 2-2. Lower connecting hole; 3-5. Upper connecting hole; 3-6. Lower connecting hole; 100-first hinge point, 200-second hinge point, 300-sliding point.

[0037] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1 , Figure 2 , Figure 8 As shown, a foldable auxiliary seat comprises a rigid component and a soft component installed on the rigid component for direct contact with the human body; the rigid component comprises a support seat 1, a connecting seat 2 and a fixed seat 3; the support seat 1 has a connecting point V located at the bottom and a slide rail located in the middle; a connecting point is provided at each end of the connecting seat 2, namely a connecting point I and a connecting point II; the connecting point I is connected with the connecting point V to form a first hinge point 100; the fixed seat 3 has a connecting point III located in the middle and a connecting point IV located at the rear, the connecting point III is connected with the connecting point II to form a second hinge point 200, and the connecting point IV cooperates with the slide rail to form a sliding point 300; when the connecting point IV moves to the lower end point of the slide rail, the connecting seat 2 is locked in a horizontal state; when the connecting point IV moves upward, the connecting seat 2 flips downward and gradually approaches the support seat 1, and when the connecting point IV moves to the upper starting point of the slide rail, the connecting seat 2, the fixed seat 3 and the support seat 1 are folded together.

[0042] The above-mentioned support base is further described below.

[0043] like Figure 3 , Figure 4As shown, the support seat 1 is a groove-type structure, including a vertically placed bottom plate and a pair of opposite side plates connected to the bottom plate, the bottom plate is used to be fixed on the pre-installed surface, and a slide rail opposite to each other is provided in the middle of each of the two side plates; the slide rail is a J-shaped sliding groove 1-5, and after the sliding groove 1-5 is aligned with the lower connecting hole 3-6 on the fixed seat 3, the two are connected by a connecting member to form a sliding point; the bottom of each of the two side plates is provided with a coaxially arranged lower connecting hole 1-6, and after the lower connecting hole 1-6 on the side plate is aligned with the lower connecting hole 2-2 on the connecting seat 2, the two are connected by a connecting member to form a first hinge point.

[0044] A further solution is that the two side panels are both flanged outward at 90 degrees at the top of the side away from the bottom plate, and the backrest 5 of the soft component is assembled on the flanges on both sides by bolts.

[0045] The above-mentioned fixing seat is further described below.

[0046] like Figure 6 As shown, the fixing seat 3 is a groove-shaped structure, including a top plate with a bend and a pair of opposite side plates connected to the top plate; a seat cushion 4 in a soft component is assembled on the top plate by bolts 61; a coaxially arranged upper connecting hole 3-5 is respectively provided in the middle of the two side plates, and after the upper connecting hole 3-5 on the side plate is aligned with the upper connecting hole 2-1 on the connecting seat 2, the two are connected by a connecting piece to form a second hinge point.

[0047] The above-mentioned connection socket is further described below.

[0048] like Figure 5 As shown, the connecting seat 2 is a groove-type structure, including a bottom plate and a pair of opposite side plates connected to the bottom plate; one end of the two side plates is respectively provided with a coaxially arranged lower connecting hole 2-2, and after the lower connecting hole 2-2 on the side plate is aligned with the lower connecting hole 1-6 on the support seat 1, the two are connected by a connecting member to form a first hinge point; the other end of the two side plates is respectively provided with a coaxially arranged upper connecting hole 2-1, and after the upper connecting hole 2-1 on the side plate is aligned with the upper connecting hole 3-5 on the fixing seat 3, the two are connected by a connecting member to form a second hinge point.

[0049] Further solutions: Figure 8 As shown, a tension component is installed between the support seat 1 and the connecting seat 2. When the fixing seat 3 is retracted, the connecting seat 2 automatically moves toward the support seat 1 under the action of the tension component until it is retracted into place.

[0050] Preferred solution: the tension component is composed of at least one tension spring 22; multiple tension springs 22 are installed side by side between the bottom plates facing the support seat 1 and the connecting seat 2. Specifically, hanging holes are provided on the bottom plates facing the support seat 1 and the connecting seat 2, and the two ends of the tension spring 22 are respectively hung in the hanging holes.

[0051] When the seat cushion 4 is folded, the connecting seat 2 is pulled closer to the supporting seat 1 under the action of the tension spring 22, driving the third pin shaft 42 to move along the sliding groove 1-5 of the supporting seat 1 to the upper starting point 1-5-1. At this time, the distance between the seat cushion 4 and the supporting seat 1 is the shortest, and the seat cushion 4 is received in place; when the seat cushion 4 needs to be used, the seat cushion 4 is pulled downward, and the third pin shaft 42 automatically moves along the sliding groove 1-5 to the lower end point 1-5-2, and the seat cushion 4 is laid flat.

[0052] The above-mentioned connecting member is further described below.

[0053] like Figure 2 As shown, the connecting parts used at the first hinge point, the second hinge point and the sliding point are composed of a hollow pin shaft, a pad with a circular hole in the center, bolts and nuts.

[0054] The first pin 13 is inserted into the two lower connection holes 1-6 and 2-2 aligned in the connection seat 2 and the support seat 1. The two pads 12 are respectively arranged on the two end faces of the first pin 13, and the three are arranged coaxially; the bolt 11 passes through the two pads 12 and the first pin 13 and is fastened by the nut 14 to limit the first pin 13 in the two lower connection holes 1-6 and 2-2. It should be noted that the first pin 13 cooperates with the lower connection hole 1-6 to form a connection point V, and the first pin 13 cooperates with the lower connection hole 2-2 to form a connection point I.

[0055] The second pin 31 is inserted into the two upper connection holes 2-1 and 3-5 aligned in the connection seat 2 and the fixing seat 3. The two pads are arranged at the two end faces of the second pin 31 respectively, and the three are arranged coaxially; the bolt 30 passes through the two pads and the second pin 31 and is fastened by a nut to limit the second pin 31 in the two upper connection holes 2-1 and 3-5. It should be noted that the second pin 31 cooperates with the upper connection hole 2-1 to form a connection point II, and the second pin 31 cooperates with the upper connection hole 3-5 to form a connection point III.

[0056] The third pin 42 is inserted into the lower connection hole 3-6 and the sliding groove 1-5 aligned in the fixing seat 3 and the supporting seat 1, and two pads are arranged on the two end surfaces of the third pin 42, and the three are arranged coaxially; the bolt 41 passes through the two pads and the third pin 42 and is fastened by a nut to limit the third pin 42 in the lower connection hole 3-6 and the sliding groove 1-5. It should be noted that the third pin 42 cooperates with the lower connection hole 3-6 to form a connection point IV.

[0057] Further solutions, such as Figure 2 As shown, bushings 21 with interference fit are installed in the connection holes at the first hinge point, the second hinge point and the sliding point, and the pin is inserted into the bushing 21 with clearance fit between the two.

[0058] Further solutions, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the support seat 1, the connecting seat 2 and the fixing seat 3 are each provided with at least one weight-reducing hole for realizing a lightweight design.

[0059] The following is a usage process of the foldable auxiliary seat:

[0060] like Figure 1 , Figure 8 As shown, first, the fixed seat 3, the connecting seat 2, and the supporting seat 1 are hinged together by connecting parts. The long hole on the supporting seat 1 that is hinged with the fixed seat 3 is a J-shaped sliding groove 1-5. The connecting parts are a pin shaft and a pad 12, a bolt, and a nut 14. After the hollow pin shaft is inserted into the aligned connecting hole, a pad 12 is arranged at each end, and the connection is completed at both ends with a bolt and a nut 14. After the pin shaft is inserted, both ends are slightly higher than the end surface of the seat cushion to ensure that the seat cushion can rotate freely around the pin shaft after the bolt is tightened; then two sets of tension springs 22 are arranged between the supporting seat 1 and the connecting seat 2, and the two ends are fixed on the hanging holes, and finally the seat cushion 4 and the backrest 5 are fixed in place. When in use, pull the seat cushion 4 downward to move the third pin shaft 42 from the upper starting point 1-5-1 to the lower end point 1-5-2 along the sliding groove 1-5. When not in use, pull the seat cushion 4 diagonally downward, and the seat cushion 4 can be automatically retracted into place under the action of the tension spring 22.

[0061] Taking into account the mining conditions, the utility model also provides a second use embodiment, such as Fig. 9 As shown, safety belts and locking devices can be installed on both sides of the support seat to further improve the applicability for mining.

[0062] In summary, the utility model has the characteristics of simple structure, space saving and convenient use. The main structural parts are all groove-type structures, which are reliable and easy to process. There are weight-reducing holes on the bottom plate to optimize the force of the tension spring and make the overall structure light. The tension spring can reliably fix the seat plate, and the seat cushion can be directly pulled when in use, without other operations.

[0063] The utility model also provides a cab, which is equipped with the foldable auxiliary seat.

[0064] The utility model also provides a mining dump truck, which is equipped with the foldable auxiliary seat mentioned above; or, is equipped with the driving cab mentioned above.

[0065] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0066] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0067] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A foldable auxiliary seat, characterized in that: It comprises a rigid component and a soft component mounted on the rigid component for direct contact with the human body; the rigid component comprises: A support base having a connection point V at the bottom and a slide rail at the middle; The connecting seat has two connecting points at each end, namely, connecting point I and connecting point II; connecting point I is connected with the connecting point V to form a first hinge point; The fixed seat has a connection point III located in the middle and a connection point IV located at the rear. The connection point III is connected to the connection point II to form a second hinge point, and the connection point IV cooperates with the slide rail to form a sliding point. When the connection point IV moves to the lower end of the slide rail, the connection seat is locked in a horizontal state; when the connection point IV moves upward, the connection seat flips downward and gradually approaches the support seat. When the connection point IV moves to the upper starting point of the slide rail, the connection seat, the fixed seat and the support seat are folded together.

2. A foldable auxiliary seat according to claim 1, characterized in that: The support seat is a groove-shaped structure, including a vertically placed bottom plate and a pair of opposite side plates connected to the bottom plate, the bottom plate is used to be fixed on the pre-installed surface, and the middle of the two side plates are each provided with a slide rail opposite to each other; the slide rail is a J-shaped sliding groove, and after the sliding groove is aligned with the lower connecting hole on the fixed seat, the two are connected by a connecting piece to form the sliding point; A coaxially arranged lower connecting hole is respectively provided at the bottom of the two side panels. After the lower connecting hole on the side panel is aligned with the lower connecting hole on the connecting seat, the two are connected by a connecting piece to form the first hinge point.

3. A foldable auxiliary seat according to claim 2, characterized in that: The two side panels are both flanged outwards at 90 degrees at the top of the side surfaces away from the bottom panel, and the backrests in the soft components are mounted on the flanges on both sides.

4. The foldable auxiliary seat according to claim 1, characterized in that: The fixing seat is a groove-shaped structure, comprising a top plate with a bend and a pair of side plates connected to the top plate and facing each other; The top plate is equipped with a seat cushion among the soft components; A coaxially arranged upper connection hole is respectively provided in the middle of the two side panels. After the upper connection hole on the side panel is aligned with the upper connection hole on the connection seat, the two are connected by a connecting piece to form the second hinge point.

5. The foldable auxiliary seat according to claim 1, characterized in that: The connecting seat is a groove-type structure, including a bottom plate and a pair of opposite side plates connected to the bottom plate; one end of each of the two side plates is provided with a coaxially arranged lower connecting hole, and after the lower connecting hole on the side plate is aligned with the lower connecting hole on the support seat, the two are connected by a connecting member to form the first hinge point; the other end of each of the two side plates is provided with a coaxially arranged upper connecting hole, and after the upper connecting hole on the side plate is aligned with the upper connecting hole on the fixing seat, the two are connected by a connecting member to form the second hinge point.

6. The foldable auxiliary seat according to claim 1, characterized in that: A tension component is installed between the support seat and the connecting seat. During the retraction of the fixing seat, the connecting seat automatically moves toward the support seat under the action of the tension component until it is retracted into place; The tension component is composed of at least one tension spring; the at least one tension spring is installed between the bottom plates facing the support seat and the connecting seat.

7. The foldable auxiliary seat according to claim 1, characterized in that: The connecting parts used for the first hinge point, the second hinge point and the sliding point are composed of the following parts: A hollow pin is used to penetrate into two connection holes aligned in the first hinge point or the second hinge point; or to penetrate into a connection hole and a sliding groove aligned in the sliding point; Two pads with circular holes in the center are arranged on both end surfaces of the pin shaft respectively, and the three pads are arranged coaxially; Bolts and nuts, wherein the bolts penetrate through the two pads and the pin shaft and are fastened by the nuts to limit the pin shaft in the two connecting holes or in the connecting hole and the sliding groove; The bushing is installed in the connecting holes at the first hinge point, the second hinge point and the sliding point in an interference fit manner, and the pin shaft penetrates into the bushing with a clearance fit therebetween.

8. The foldable auxiliary seat according to claim 1, characterized in that: The support seat, the connecting seat and the fixing seat are each provided with at least one weight-reducing hole for realizing a lightweight design.

9. A cab, characterized in that: The foldable auxiliary seat according to any one of claims 1 to 8 is installed.

10. A mining dump truck, characterized in that: A foldable auxiliary seat as claimed in any one of claims 1 to 8 is installed; or a driver's cab as claimed in claim 9 is installed.

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