Hand brake device for tracked vehicle and tracked vehicle

Abstract

The utility model relates to a hand brake device for tracked vehicle and tracked vehicle are provided. The hand brake device for tracked vehicle includes support structure, brake lever, brake disc, brake lever structure, linkage bending rod and elastic linkage assembly. When the hand brake device for tracked vehicle is in the brake state, the linkage part is located at the second side, one end of the linkage bending rod connected with the linkage part is located at the second side, the other end is located at the first side, the linkage bending rod and brake lever structure cooperate with each other at this time, make between both a force balance state, to ensure that the linkage bending rod always provides an end -to -end force to the elastic linkage assembly, the linkage bending rod does not descend towards the direction of the bottom end, makes the whole brake state of tracked vehicle stable and reliable, reduces the probability of tracked vehicle brake parking and the like after the occurrence, improves the brake safety of tracked vehicle.

Description

TECHNICAL FIELD

[0001] The utility model relates to tracked equipment technical field, especially a hand brake device for tracked vehicle and tracked vehicle. BACKGROUND

[0002] Tracked vehicle because can adapt to various complex conditions, and be widely used in mountain forest transportation, engineering construction, rescue and so on. In the use process of tracked vehicle, the situation of emergency brake inevitably appears, and the traditional tracked vehicle usually stops by brake through simultaneously pulling left steering handle and right steering handle. However, this brake mode through simultaneously pulling left steering handle and right steering handle, the brake will immediately release after the operation person releases hand, especially for some ground with slope, the tracked vehicle is easy to slide after brake release, and there is certain security risk. SUMMARY

[0003] Therefore, it is necessary to provide a hand brake device for tracked vehicle and tracked vehicle, which is reliable in braking and improves the safety of braking.

[0004] A hand brake device for tracked vehicle, comprising:

[0005] A support structure has opposite top end and bottom end;

[0006] A brake lever is rotatably installed on the bottom end; the brake lever has a brake part;

[0007] A brake disc is installed on the bottom end and is oppositely arranged with the brake part;

[0008] A brake lever structure has a rotating connection part, a hand brake lever and a linkage part; the rotating connection part is rotatably installed on the top end; the rotating connection part is spaced apart from the linkage part; the hand brake lever and the linkage part are located on the side of the rotating connection part away from the bottom end; the rotating connection part has opposite first side and second side in the direction perpendicular to the direction in which the top end and the bottom end point to each other;

[0009] A linkage bending lever is rotatably connected to one end of the linkage part and located on the first side;

[0010] An elastic linkage assembly is connected to the other end of the linkage bending lever at one end and linked to the brake lever at the other end;

[0011] Wherein, the hand brake lever is operable to drive the linkage part to rotate forward or reversely around the rotating shaft of the rotating connection part, until the brake part abuts against the brake disc when the linkage part reaches the second side through the highest point of its rotating track, or the brake part is separated from the brake disc when the linkage part reaches the first side.

[0012] A tracked vehicle includes a handbrake device for a tracked vehicle as described above.

[0013] The aforementioned handbrake device for tracked vehicles and the tracked vehicle themselves allow for braking and stopping. When the tracked vehicle needs to brake or brake suddenly, the operator pulls the handbrake lever and rotates it from the first side to the second side. At this time, the linkage and the linkage bending rod connected to the linkage also rotate with the handbrake lever. Simultaneously, the elastic linkage component moves accordingly, pulling the brake lever to rotate the brake part forward until the linkage reaches its highest point on the second side, where the brake part abuts against the brake disc, thus completing the braking action. Because the linkage is located on the second side, and one end of the linkage bending rod connected to the linkage is on the second side while the other end is on the first side, the linkage bending rod and brake lever work together in a balanced state when the handbrake device is in braking mode. This ensures that the linkage bending rod continuously provides a force towards the top of the elastic linkage component without descending towards the bottom, making the entire braking state of the tracked vehicle stable and reliable. This reduces the probability of the tracked vehicle slipping after braking and stopping, improving the braking safety of the tracked vehicle. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0015] Figure 1 This is a schematic diagram of the handbrake device for a tracked vehicle in a preferred embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the brake lever in the handbrake device used in a tracked vehicle.

[0017] Figure 3 for Figure 1 The diagram shows the structure of the brake lever in the handbrake device used in a tracked vehicle.

[0018] Figure 4 for Figure 1 The diagram shows the structure of the limiting component in the handbrake device for a tracked vehicle.

[0019] Figure 5 for Figure 1 The diagram shows the structure of the rotating seat in the handbrake device used in a tracked vehicle.

[0020] Figure 6 for Figure 1Structure diagram of a swing rod in a hand brake device for a tracked vehicle.

[0021] In the detailed description of the drawings, the following reference signs are used: 100, hand brake device for tracked vehicle; 110, support structure; 111, top end; 112, bottom end; 113, brake box; 114, support frame; 115, limiting piece; 1151, limiting part; 116, transverse shaft; 120, brake lever; 121, brake part; 130, brake disc; 140, brake lever structure; 141, rotating connection part; 1411, first side; 1412, second side; 142, hand brake lever; 143, linkage part; 144, rotating tube; 145, linkage plate; 150, linkage bending lever; 151, horizontal lever segment; 152, vertical lever segment; 160, elastic linkage assembly; 161, rotating seat; 1611, first hooking part; 1612, second hooking part; 162, first elastic piece; 1621, first hooking joint; 1622, first spring; 163, second elastic piece; 1631, second hooking joint; 1632, second spring; 164, swing rod; 1641, clamping through hole; 1642, adjusting groove; 1643, mounting through hole; 1644, threaded hole; 1645, tooth groove. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments of the present application, and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0024] In describing the positional relationship, unless otherwise specified, when an element is referred to as "on" another element, it can be directly on the other element or there can be an intermediate element. It can also be understood that when an element is referred to as "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.

[0025] In the case of using "include", "have", and "contain" described in this paper, unless the explicit limiting language such as "only", "consisting of" and the like is used, another component can also be added. Unless otherwise mentioned, the singular form of the term can include the plural form and cannot be understood as one in number.

[0026] The utility model provides a hand brake device for tracked vehicle and tracked vehicle. Among them, the tracked vehicle includes the hand brake device for tracked vehicle. And the tracked vehicle in the utility model embodiment can be tracked transport vehicle, tracked wrecker, tracked geological detection vehicle etc.

[0027] Attached Figure 1 The structure of the hand brake device for tracked vehicle in the embodiment of the utility model is shown. In order to facilitate the description, the drawing only shows the structure related to the embodiment of the utility model.

[0028] Please refer to Figure 1 The hand brake device 100 for tracked vehicle in the preferred embodiment of the utility model includes support structure 110, brake lever 120, brake disc 130, brake lever structure 140, linkage bending lever 150 and elastic linkage assembly 160.

[0029] Support structure 110 has opposite top end 111 and bottom end 112. When the tracked vehicle is located in the horizontal plane, the top end 111 and the bottom end 112 are the upper end and the lower end of the support structure 110 respectively, so the direction of the top end 111 and the bottom end 112 pointing to each other is vertical direction.

[0030] Please refer to Figure 2 Brake lever 120 is rotatably installed on the bottom end 112. Brake lever 120 has brake part 121. Among them, brake part 121 can be fixed on the cam and other eccentric structures on the brake lever 120, can also be the curved lever segment formed by the middle part of the brake lever 120 bending outward, and can also be other protruding structures fixed on the side of the brake lever 120. Brake disc 130 is installed on the bottom end 112 and is arranged opposite to brake part 121.

[0031] Please refer to Figure 3 Brake lever structure 140 has rotating connection part 141, hand brake pull rod 142 and linkage part 143. Rotating connection part 141 is rotatably installed on the top end 111. Rotating connection part 141 is arranged in interval with linkage part 143. Hand brake pull rod 142 and linkage part 143 are both located on the side of rotating connection part 141 away from the bottom end 112. In the direction perpendicular to the direction of the top end 111 and the bottom end 112 pointing to each other, rotating connection part 141 has opposite first side 1411 and second side 1412. When the tracked vehicle is located in the horizontal plane, the direction of the first side 1411 and the second side 1412 pointing to each other is horizontal direction.

[0032] One end of the linkage bending rod 150 is rotationally connected with the linkage part 143 and located at the first side 1411. Specifically, the linkage bending rod 150 comprises at least one bending section. Of course, in some embodiments, the linkage bending rod 150 further comprises a straight rod section connected with the bending section.

[0033] One end of the elastic linkage assembly 160 is connected with the other end of the linkage bending rod 150, and the other end is connected with the brake rod 120.

[0034] Wherein, the hand brake lever 142 is operable to drive the linkage part 143 to rotate forward or reversely around the rotation axis of the rotation connecting part 141 until the linkage part 143 reaches the second side 1412 when the brake part 121 abuts against the brake disc 130 or reaches the first side 1411 when the brake part 121 is separated from the brake disc 130.

[0035] When the track vehicle needs to be stopped by braking, the operator pulls the hand brake lever 142 to rotate along the first side 1411 to the second side 1412. At this time, the linkage part 143 and the linkage bending rod 150 connected with the linkage part 143 will also rotate with the hand brake lever 142, and the elastic linkage assembly 160 will also follow, so as to pull the brake rod 120 to drive the brake part 121 to rotate forward until the linkage part 143 reaches the second side 1412 when the brake part 121 abuts against the brake disc 130, i.e. the braking action is completed.

[0036] When the hand brake device 100 for track vehicle needs to be switched to the hand brake release state, the operator pulls the hand brake lever 142 to rotate along the second side 1412 to the first side 1411, and the elastic linkage assembly 160 will also follow, so as to pull the brake rod 120 to drive the brake part 121 to rotate reversely until the linkage part 143 reaches the first side 1411 when the brake part 121 is separated from the brake disc 130, i.e. the hand brake release action is completed.

[0037] Obviously, when the track vehicle is stopped by braking by using the hand brake device 100 for track vehicle, the end of the linkage part 143 and the linkage bending rod 150 for connecting the linkage part 143 are located at the second side 1412, and the other end of the linkage bending rod 150 is located at the first side 1411. At this time, the linkage bending rod 150 cooperates with the brake lever structure 140, so that the linkage bending rod 150 and the brake lever structure 140 are in a force balance state, to ensure that the linkage bending rod 150 can continuously provide an acting force towards the top end 111 to the elastic linkage assembly 160, and the linkage bending rod 150 will not descend towards the bottom end 112, so as to make the whole braking state of the track vehicle stable and reliable, reduce the probability of track vehicle sliding after braking, and improve the braking safety of the track vehicle.

[0038] In some embodiments, the support structure 110 comprises a brake box 113 and a support frame 114 arranged at one end of the brake box 113. The brake lever 120 and the brake disc 130 are rotatably mounted on the side wall of the brake box 113, and the brake portion 121 is located in the brake box 113. One end of the brake lever 120 extends out of the brake box 113 and is connected with the elastic linkage assembly 160. The rotating connection portion 141 is rotatably mounted on the support frame 114. The brake box 113 can be a brake gear box as a hydraulic brake in a tracked vehicle, or can be an independently designed box part for mounting the brake lever 120 and the brake disc 130.

[0039] In this way, the brake portion 121 is located in the brake box 113, and at least part of the brake disc 130 is located in the brake box 113, so that during the braking or releasing of the hand brake device 100 for the tracked vehicle, the brake portion 121 rotates with the brake lever 120, and the action of abutting or separating with the brake disc 130 is completed in the brake box 113. Therefore, the brake box 113 has a protective effect, which can prevent external impurities, water, etc. from falling on the brake portion 121 and / or the brake disc 130, thereby affecting the braking reliability and further improving the braking safety.

[0040] In addition, the support structure 110 is arranged as the brake box 113 and the support frame 114, which not only ensures the installation and fixation of the brake lever structure 140, the elastic buffer assembly, etc., but also effectively reduces the volume of the support structure 110 and improves the space utilization.

[0041] Please refer to Figure 4 , further, in some embodiments, the support frame 114 is provided with a limiting piece 115 away from one end of the bottom end 112. The limiting piece 115 is provided with a limiting portion 1151. The limiting portion 1151 is located on the side of the brake lever towards the first side 1411, and is used for limiting the rotation limit position of the hand brake lever 142 on the first side 1411. The limiting portion 1151 can be a flat surface, a groove, etc. on the side of the limiting piece 115 towards the hand brake lever 142, or can be an elastic limiting structure such as a rubber block assembled on the limiting piece 115, or can be other limiting structures such as an elastic plunger assembled on the limiting piece 115.

[0042] In this way, the limiting portion 1151 limits the limit position of the hand brake lever 142 rotating in the direction from the second side 1412 to the first side 1411, avoiding the over-rotation of the hand brake lever 142, and improving the use safety of the hand brake device 100 for the tracked vehicle.

[0043] Please refer to Figure 1 and Figure 3In some embodiments, the support frame 114 is provided with a transverse shaft 116 at one end away from the bottom end 112. The brake lever structure 140 includes a rotating tube 144 as a rotating connection part 141, a hand brake lever 142 fixed to the rotating tube 144, and a linkage plate 145 fixed to the rotating tube 144. The linkage plate 145 is provided with a linkage part 143 at one end away from the rotating tube 144. The rotating tube 144 is rotatably sleeved on the transverse shaft 116. The hand brake lever 142 and the linkage plate 145 can be in the same direction or have a certain angle therebetween, as long as the linkage part 143 and the hand brake lever 142 can always be kept on the side (i.e., above the rotating tube 144) away from the bottom end 112 of the rotating tube 144.

[0044] In this way, the brake lever structure 140 is divided into three parts, i.e., the rotating tube 144, the hand brake lever 142, and the linkage plate 145, which are formed separately, thereby reducing the waste of materials and effectively reducing the processing cost of the brake lever structure 140.

[0045] Specifically, the rotating tube 144 is rotatably sleeved on the transverse shaft 116, and a bolt, a pin shaft or other parts are installed at one end of the transverse shaft 116 away from the support frame 114 to limit the axial position of the rotating tube 144 on the transverse shaft 116.

[0046] Of course, in other embodiments, the brake lever structure 140 can also be an integrally formed structure such as injection molding or 3D printing.

[0047] In some embodiments, the linkage bending lever 150 includes a horizontal rod segment 151 and a vertical rod segment 152 connected at one end to the horizontal rod segment 151. The horizontal rod segment 151 is bent in the direction toward the bottom end 112 relative to the vertical rod segment 152, so that the linkage bending lever 150 is in L shape. One end of the horizontal rod segment 151 away from the vertical rod segment 152 is rotatably connected to the linkage part 143. One end of the vertical rod segment 152 away from the horizontal rod segment 151 is linked to the elastic linkage assembly 160. It should be noted that the horizontal rod segment 151 and the vertical rod segment 152 are both straight rod segments, and the connection or bending part between the horizontal rod segment 151 and the vertical rod segment 152 is a curved segment.

[0048] In this way, the linkage bending lever 150 is provided as an L-shaped lever structure composed of the vertical rod segment 152 and the horizontal rod segment 151, so that the linkage bending lever 150 can be balanced with the brake lever structure 140 in the braking state with a relatively simple structure, thereby ensuring the stable and reliable effect of the brake.

[0049] Please refer to Figure 5In some embodiments, the brake lever 120 and the brake disc 130 are one-to-one corresponding. The elastic linkage assembly 160 comprises a rotating seat 161, a first elastic member 162, two second elastic members 163 and two swing levers 164. The rotating seat 161 is rotatably installed on the support structure 110 and located between the brake lever structure 140 and the brake lever 120. The rotating seat 161 has a first hooking part 1611 and two second hooking parts 1612 which are spaced apart along the direction in which the first side 1411 and the second side 1412 point to each other. The two ends of the first elastic member 162 are connected with the end of the linkage bending lever 150 away from the linkage part 143 and the first hooking part 1611 respectively. The one ends of the two second elastic members 163 are connected with the two second hooking parts 1612 one-to-one corresponding respectively, and the other ends are connected with the two swing levers 164 respectively. The two swing levers 164 are fixed on the two brake levers 120 one-to-one corresponding respectively. The positions where the brake lever 120 and the corresponding swing lever 164 are connected with the second elastic member 163 are spaced apart. The first elastic member 162 and the second elastic member 163 can be springs, elastic rubber bands or the like.

[0050] In this way, the operator only needs to pull the hand brake lever 142, and the two brake parts 121 can be brought into contact with or separated from the two brake discs 130 respectively, so that the hand brake device 100 for the tracked vehicle can obtain stronger braking force and more uniform distribution of braking force in the braking state, so as to further improve the braking reliability and safety of the tracked vehicle.

[0051] In addition, the first elastic member 162 and the second elastic member 163 provided in the elastic linkage assembly 160 can play a buffering role. Even if the operator pulls the hand brake lever 142 roughly, the first elastic member 162 and the second elastic member 163 can provide elastic buffering force to ensure that the brake lever 120 can be rotated to the brake part 121 to contact or separate from the brake disc 130 smoothly, so as to further improve the braking reliability and safety of the tracked vehicle.

[0052] Further, in some embodiments, in the direction in which the first side 1411 and the second side 1412 point to each other, the first hooking part 1611 is located between the two second hooking parts 1612. In this way, when the linkage bending lever 150 pulls the first hooking part 1611 to drive the rotating seat 161 to rotate through the first elastic member 162, the two second hooking parts 1612 rotate synchronously with the first hooking part 1611 to pull the two brake levers 120 to rotate through the two second elastic members 163 respectively. Therefore, the first hooking part 1611 is arranged between the two second hooking parts 1612 to ensure that the elastic linkage assembly 160 is balanced in stress during the rotation of the hand brake lever 142, which is beneficial to further improving the braking stability and reliability.

[0053] Please refer to Figure 6, further, in some embodiments, the clamping through hole 1641 is formed on the swing lever 164. The side wall of the swing lever 164 is provided with an adjusting groove 1642 communicating with the clamping through hole 1641. The opposite side walls of the adjusting groove 1642 are respectively provided with a mounting through hole 1643 and a threaded hole 1644. The side wall of the clamping through hole 1641 can be elastically deformed. The hand brake device 100 for the tracked vehicle further comprises a threaded fastener (not shown in the figure). One end of the threaded fastener is inserted into the mounting through hole 1643, and the other end is screwed into the threaded hole 1644.

[0054] In this way, when it is necessary to install the swing lever 164 on the brake lever 120, the end of the brake lever 120 is inserted into the clamping through hole 1641, and the threaded fastener inserted into the mounting through hole 1643 and the threaded hole 1644 is screwed. At this time, the gap of the adjusting groove 1642 gradually decreases under the tension of the threaded fastener, until the hole wall of the clamping through hole 1641 clamps the brake lever 120, realizing the transmission connection between the swing lever 164 and the brake lever 120; when it is necessary to remove the swing lever 164 from the brake lever 120, only the threaded fastener needs to be screwed to gradually increase the gap of the adjusting groove 1642 under the elastic deformation of the side wall of the clamping through hole 1641, until the side wall of the clamping through hole 1641 loosens the brake lever 120, and then the swing lever 164 is removed from the brake lever 120. The gap of the adjusting groove 1642 can be adjusted by the threaded fastener, so that the swing lever 164 and the brake lever 120 are convenient to disassemble and assemble.

[0055] Further, in some embodiments, the inner wall of the clamping through hole 1641 is circumferentially spaced apart to form a plurality of tooth grooves 1645. The end of the brake lever 120 is circumferentially spaced apart to form a plurality of clamping teeth (not shown in the figure). The plurality of clamping teeth are respectively and correspondingly clamped into the plurality of tooth grooves 1645 to transmit the brake lever 120 and the swing lever 164.

[0056] In this way, when the brake lever 120 is clamped in the clamping through hole 1641 of the swing lever 164, the plurality of clamping teeth are respectively and correspondingly clamped into the plurality of tooth grooves 1645, thereby realizing the key connection between the brake lever 120 and the swing lever 164, effectively improving the stability of the transmission connection between the swing lever 164 and the brake lever 120, reducing the probability of slipping between the swing lever 164 and the brake lever 120, and further improving the reliability and safety of the brake of the tracked vehicle.

[0057] Please refer again to Figure 1Further, in some embodiments, the first hooking part 1611 and the second hooking part 1612 are both hooking holes. The swing rod 164 is provided with a hooking hole. The first elastic member 162 comprises a first hooking joint 1621 and a first spring 1622. One end of the first hooking joint 1621 is detachably connected with one end of the linkage bending rod 150. Two acting ends of the first spring 1622 are respectively hooked on the hooking end of the first hooking joint 1621 and the first hooking part 1611. The second elastic member 163 comprises a second hooking joint 1631 and a second spring 1632. One end of the second hooking joint 1631 is detachably mounted on the second hooking part 1612. Two acting ends of the second spring 1632 are respectively hooked on the hooking end of the second hooking joint 1631 and the hooking hole.

[0058] The first hooking joint 1621 and the linkage bending rod 150 can be detachably connected through thread connection, pin shaft connection or the like, and the second hooking joint 1631 and the second hooking part 1612 can be detachably connected through hooking, pin shaft connection or the like. The first spring 1622 and the second spring 1632 are both installed through hooking, so that the first spring 1622 and the second spring 1632 are more convenient to disassemble and assemble, and thus the first spring 1622 and the second spring 1632 are more convenient to replace and maintain, thereby effectively reducing the maintenance cost of the hand brake device 100 for the tracked vehicle.

[0059] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present disclosure.

[0060] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A hand brake for a tracked vehicle, characterized in that, The application relates to a handbrake structure, comprising: a support structure having opposite top and bottom ends; a brake lever rotatably mounted on the bottom end; the brake lever having a brake portion; a brake disc mounted on the bottom end and arranged opposite to the brake portion; a handbrake lever structure having a rotary connecting portion, a handbrake lever and a linkage portion; the rotary connecting portion is rotatably mounted on the top end; the rotary connecting portion is arranged apart from the linkage portion; the handbrake lever and the linkage portion are both located on the side of the rotary connecting portion away from the bottom end; the rotary connecting portion has opposite first and second sides in the direction perpendicular to the direction in which the top and bottom ends point to each other; a linkage bent lever having one end rotatably connected with the linkage portion and located on the first side; a flexible linkage assembly having one end connected with the other end of the linkage bent lever and the other end linked with the brake lever; wherein the handbrake lever can drive the linkage portion to rotate forward or reversely around the rotary shaft of the rotary connecting portion until the brake portion abuts against the brake disc when the linkage portion reaches the highest point of the rotary track and arrives at the second side or the brake portion is separated from the brake disc when the linkage portion reaches the first side.

2. The hand brake for a track-laying vehicle according to claim 1, characterized in that, The support structure comprises a brake box and a support frame arranged on one end of the brake box; the brake lever and the brake disc are rotatably mounted on the side wall of the brake box and the brake portion is located in the brake box; one end of the brake lever extends out of the brake box and is linked with the flexible linkage assembly; the rotary connecting portion is rotatably mounted on the support frame.

3. The hand brake for a track-laying vehicle according to claim 2, characterized in that The support frame is provided with a limiting member at the end away from the bottom end; the limiting member is provided with a limiting portion on the side of the brake lever towards the first side and is used for limiting the rotary limit position of the handbrake lever on the first side; and / or the support frame is provided with a transverse shaft at the end away from the bottom end; the handbrake lever structure comprises a rotary pipe as the rotary connecting portion, the handbrake lever fixed on the rotary pipe and a linkage plate fixed on the rotary pipe; the linkage plate is provided with the linkage portion at the end away from the rotary pipe; the rotary pipe is rotatably sleeved on the transverse shaft.

4. The hand brake for a track-laying vehicle according to claim 1, characterized by The linkage bent lever comprises a horizontal rod segment and a vertical rod segment having one end connected with the horizontal rod segment; the horizontal rod segment is bent relative to the vertical rod segment in the direction towards the bottom end, so that the linkage bent lever is L-shaped; one end of the horizontal rod segment away from the vertical rod segment is rotatably connected with the linkage portion; the other end of the vertical rod segment away from the horizontal rod segment is linked with the flexible linkage assembly.

5. The hand brake for a track-laying vehicle according to claim 1, wherein The brake lever and the brake disc are one-to-one corresponding. The elastic linkage assembly comprises a rotating seat, a first elastic member, two second elastic members and two swing rods. The rotating seat is rotatably mounted on the support structure and located between the brake lever structure and the brake rods. The rotating seat has a first hooking part and two second hooking parts which are spaced apart along the direction in which the first side and the second side point to each other. The two ends of the first elastic member are connected with the end of the linkage bent rod away from the linkage part and the first hooking part respectively. One end of each of the two second elastic members is connected with one of the two second hooking parts correspondingly, and the other end of each of the two second elastic members is connected with one of the two swing rods respectively. The two swing rods are fixed on the two brake rods correspondingly respectively. The parts of the brake rods where the second elastic members are connected with the corresponding swing rods are spaced apart.

6. The hand brake for a track-laying vehicle according to claim 5, wherein In the direction in which the first side and the second side point to each other, the first hooking part is located between the two second hooking parts.

7. The hand brake for a track-laying vehicle according to claim 5, wherein The swing rod is formed with a clamping through hole. The side wall of the swing rod is provided with an adjusting groove which is in communication with the clamping through hole. The two opposite side walls of the adjusting groove are respectively formed with a mounting through hole and a threaded hole. The side wall of the clamping through hole can be elastically deformed. The hand brake device for tracked vehicles further comprises a threaded fastener. One end of the threaded fastener is arranged in the mounting through hole, and the other end of the threaded fastener is screwed in the threaded hole.

8. The hand brake for a track-laying vehicle according to claim 7, characterized in that The inner wall of the clamping through hole is formed with a plurality of tooth grooves in the circumferential direction. One end of the brake rod is formed with a plurality of clamping teeth in the circumferential direction. The plurality of clamping teeth are correspondingly clamped in the plurality of tooth grooves respectively to drive connect the brake rod and the swing rod.

9. The hand brake for a track-laying vehicle according to claim 5, wherein The first hooking part and the second hooking part are both hooking holes. The swing rod is provided with a hooking hole. The first elastic member comprises a first hooking connector and a first spring. One end of the first hooking connector is detachably connected with one end of the linkage bent rod. The two acting ends of the first spring are respectively hooked in the first hooking part and the hooking end of the first hooking connector. The second elastic member comprises a second hooking connector and a second spring. One end of the second hooking connector is detachably mounted in the second hooking part. The two acting ends of the second spring are respectively hooked in the hooking end of the second hooking connector and the hooking hole.

10. A tracked vehicle characterized by, The hand brake device for tracked vehicles comprises any one of the hand brake devices for tracked vehicles as claimed in claims 1 to 9.

Images