A bracket for mounting a boom
By installing a fastening device between the forklift boom and the mast, the problem of boom swaying is solved, a tight connection between the boom and the mast is achieved, and the safety and reliability of the forklift are improved.
Patent Information
- Application Number
- CN202521580263.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-28
AI Technical Summary
In existing technologies, the connection between the support arm and the mast beam is not tight, causing the support arm to sway, which affects the working reliability and safety of the forklift.
A fastening device is adopted, including a plug and a rotating rod. The plug is slidably connected to the slide groove of the gantry, and the rotating rod is threadedly connected to the support arm to fill the gap between the gantry and the support arm, so that the support arm and the gantry are tightly connected to prevent shaking.
It enhances the tightness of the connection between the boom and the mast, prevents boom swaying, and improves the safety and reliability of forklift handling of goods.
Smart Images

Figure CN224677733U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of forklift arm technology, specifically relating to an arm mounting bracket. Background Technology
[0002] A forklift is a vehicle used for transporting goods, including loading, unloading, stacking, and short-distance transportation. The forklift uses a boom to lift the goods, which is slidably connected to the mast. In existing technology, the boom is slidably connected to the mast's crossbeam, which has multiple notches. Pins are slidably connected to the boom, passing through the boom and inserting into the notches. When adjusting the boom spacing, the pin is pulled out, pushing the boom to move. After moving to the desired distance, the pin is reinserted into the notch, preventing the boom from slipping.
[0003] However, in order to facilitate the adjustment of the distance between the support arms and the disassembly of the support arms, the contact between the support arms and the mast beam is not tight, leaving a certain amount of room for movement. This causes the support arms to sway. After the forklift picks up a heavy object, this swaying becomes a potential hazard that causes the goods to fall, affecting the reliability and safety of the forklift's operation.
[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a bracket for mounting the support arm.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this utility model is to provide a support arm mounting bracket that can solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:
[0008] A bracket for mounting arms, comprising:
[0009] A gantry, the gantry including a first crossbeam, and a plurality of first grooves are provided on one end face of the first crossbeam;
[0010] A fastening device includes an insert block and a rotating rod. The insert block is slidably connected to the groove wall of a first sliding groove. One end face of the insert block abuts against a support arm. The thickness of the insert block gradually increases from the bottom to the top. The rotating rod is rotatably connected to the insert block. One end face of the support arm has a first threaded hole, and the rotating rod is threaded into the first threaded hole.
[0011] In one or more embodiments of this utility model, a shaft hole is opened on one end face of the insert block, the rotating rod is rotatably connected in the hole wall of the shaft hole, and a third groove is opened on the opposite end face of the insert block. A limiting ring is rotatably connected in the groove wall of the third groove, and the limiting ring is fixedly connected to the rotating rod.
[0012] In one or more embodiments of this utility model, the first slide groove is a T-shaped slide groove, and the insert block is an I-shaped slider.
[0013] In one or more embodiments of this utility model, the bottom of the insert block is chamfered.
[0014] In one or more embodiments of this utility model, a plurality of first grooves matching the first sliding groove are provided on one side end face of the gantry. The fastening device further includes a support plate, which abuts against the groove wall of the first groove and is threadedly connected to the rotating rod.
[0015] In one or more embodiments of this utility model, a pair of limiting blocks that match the first sliding groove are fixedly connected to the bottom end face of the support plate.
[0016] In one or more embodiments of this utility model, the bottom end face of the limiting block is chamfered.
[0017] In one or more embodiments of this utility model, a limiting component is fixedly connected to one end face of the insert block.
[0018] In one or more embodiments of this utility model, the limiting component includes a housing and a gear ring. The housing is fixedly connected to the insert block, and the gear ring is rotatably connected inside the housing. The gear ring is fixedly connected to a rotating rod. A cover is fixedly connected to one end face of the housing. A second sliding groove is formed on one end face of the housing. A limiting rod matching the gear ring is slidably connected in the groove wall of the second sliding groove. A spring is slidably connected in the groove wall of the second sliding groove, and the spring abuts against the limiting rod. A third sliding groove is formed on one end face of the housing. A handle is fixedly connected to the side wall of the limiting rod, and the handle slides in the groove wall of the third sliding groove. A limiting groove is formed on one end face of the housing.
[0019] In one or more embodiments of this utility model, a connecting plate is fixedly connected inside the groove wall of the first chute, and a circular hole is opened on one end face of the connecting plate. The rotating rod rotates inside the circular hole, and the diameter of the circular hole is larger than the cross-sectional diameter of the rotating rod.
[0020] Compared with the prior art, the bracket for mounting a support arm of this utility model has a fastening device installed between the gantry and the support arm. The fastening device can fill the gap between the gantry and the support arm, so as to make the connection between the support arm and the gantry tight, thereby preventing the support arm from shaking and enhancing the safety and reliability of handling goods. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a perspective view of a support arm mounting bracket according to one embodiment of the present utility model;
[0023] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;
[0024] Figure 3 A three-dimensional view of the fastening device;
[0025] Figure 4 Exploded view of the fastening device;
[0026] Figure 5 This is a 3D diagram of the insert block;
[0027] Figure 6 A three-dimensional view of the support plate;
[0028] Figure 7 Exploded view of the limit component;
[0029] Figure 8 This is a 3D view of the support arm.
[0030] Explanation of key figure labels:
[0031] 1. Frame; 101. First crossbeam; 102. Second crossbeam; 103. First slide groove; 104. First groove; 105. Connecting plate; 106. Round hole; 2. Support arm; 201. First threaded hole; 3. Fastening device; 301. Insert block; 302. Rotating rod; 303. Support plate; 304. Second threaded hole; 305. Second groove; 306. Shaft hole; 307. Third groove; 308. Limiting ring; 309. Limiting block; 4. Limiting assembly; 401. Housing; 402. Second slide groove; 403. Third slide groove; 404. Limiting groove; 405. Gear ring; 406. Limiting rod; 407. Handle; 408. Spring; 409. Cover. Detailed Implementation
[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0033] like Figure 1 As shown, a bracket mounting bracket of the present invention includes a gantry 1 and a fastening device 3. The bracket 2 is slidably connected to the gantry 1. The fastening device 3 is located between the gantry 1 and the bracket 2. The fastening device 3 can fill the gap between the gantry 1 and the bracket 2, so that the bracket 2 is firmly installed on the gantry 1 and the bracket 2 no longer shakes.
[0034] like Figure 2 As shown, the gantry 1 includes a first crossbeam 101 and a second crossbeam 102. A support arm 2 slides on the first and second crossbeams 101 and 102. Multiple notches are provided on the second crossbeam 102, and pins are inserted into the support arm 2. The pins pass through the support arm 2 and engage with the notches on the second crossbeam 102, thus preventing the support arm 2 from sliding. Multiple first grooves 103 are provided on one end face of the first crossbeam 101. The positions of the first grooves 103 correspond to the positions of the notches on the second crossbeam 102. When adjusting the spacing of the support arms 2, the position of the support arm 2 always corresponds to one of the first grooves 103.
[0035] like Figure 3 , Figure 4 and Figure 5 As shown, the fastening device 3 includes an insert block 301 and a rotating rod 302. The insert block 301 is slidably connected within the groove wall of the first sliding groove 103. One end face of the insert block 301 abuts against the support arm 2. The thickness of the insert block 301 gradually increases from the bottom to the top. When the insert block 301 slides downward, one end face of the insert block 301 abuts against the support arm 2, and as the insert block 301 slides down, the abutment becomes tighter and tighter, eventually locking the support arm 2 so that the support arm 2 can no longer wobble.
[0036] The rotating rod 302 is rotatably connected to the insert block 301. A shaft hole 306 is formed on one end face of the insert block 301, and the rotating rod 302 is rotatably connected within the wall of the shaft hole 306. A third groove 307 is formed on each opposite end face of the insert block 301. A limiting ring 308 is rotatably connected within the groove wall of the third groove 307. The limiting ring 308 is welded to the rotating rod 302, and the section of the rotating rod 302 between the two limiting rings 308 is a smooth rod. The insert block 301 moves up and down with the rotating rod 302. When the position of the support arm 2 needs to be adjusted, the insert block 301 can be pulled out via the rotating rod 302, causing the gantry 1 to loosen its contact with the support arm 2, thus allowing the support arm 2 to slide.
[0037] like Figure 8 As shown, a first threaded hole 201 is provided on one end face of the support arm 2. The rotating rod 302 is threaded into the first threaded hole 201, which can fix the position of the rotating rod 302, thereby fixing the position of the insert block 301, so that the insert block 301 and the support arm 2 are firmly abutted and will not separate due to the bumps of the forklift. At the same time, as the rotating rod 302 spirals into the first threaded hole 201, the insert block 301 also slides downward, thereby making the insert block 301 and the support arm 2 abut more tightly.
[0038] The first slide groove 103 is a T-shaped slide groove, the insert block 301 is an I-shaped slider, and the insert block 301 is provided with a second groove 305 so that the insert block 301 will not deviate when sliding up and down in the first slide groove 103.
[0039] Furthermore, the bottom of the insert 301 is chamfered, making it easier for the insert 301 to slide into the first groove 103.
[0040] The gantry 1 has multiple first grooves 104 on one side end face that match the first sliding groove 103. The positions of the first grooves 104 correspond to the positions of the first sliding groove 103. The fastening device 3 also includes a support plate 303, which abuts against the groove wall of the first groove 104. The support plate 303 has a second threaded hole 304 and is threadedly connected to the rotating rod 302. When it is necessary to pull out the insert 301, it is difficult to pull out because the insert 301 is in close contact with the support arm 2. The rotating rod 302 is threadedly connected to the support plate 303. Rotating the rotating rod 302 reduces the distance between the insert 301 and the support plate 303, and the support plate 303 is pressed tightly against the groove wall of the first groove 104, thereby allowing the insert 301 to be pulled out.
[0041] like Figure 6As shown, a pair of limiting blocks 309 that match the first sliding groove 103 are welded to the bottom end face of the support plate 303. When the support plate 303 abuts against the groove wall of the first groove 104, the limiting blocks 309 are located in the groove wall of the first sliding groove 103, thereby preventing the support plate 303 from rotating. The rotating rod 302 will not drive the support plate 303 to rotate.
[0042] Furthermore, the bottom end face of the limiting block 309 is chamfered, making it easier for the limiting block 309 to be engaged in the groove wall of the first slide groove 103.
[0043] like Figure 2 As shown, a connecting plate 105 is welded into the groove wall of the first slide groove 103. The end face of the connecting plate 105 that contacts the support arm 2 is flush with the first crossbeam 101. When sliding the support arm 2 or adjusting the distance between the support arms 2, the side of the support arm 2 will not get stuck in the first slide groove 103, thus not affecting the sliding of the support arm 2. A circular hole 106 is opened on one end face of the connecting plate 105. The rotating rod 302 rotates in the circular hole 106. The diameter of the circular hole 106 is larger than the cross-sectional diameter of the rotating rod 302, so that the rotating rod 302 can pass through the circular hole 106. The connecting plate 105 does not interfere with the rotation of the rotating rod 302.
[0044] like Figure 4 As shown, a limiting component 4 is welded to one end face of the insert block 301. The limiting component 4 can prevent the rotating rod 302 from rotating and loosening as the forklift bounces, thereby ensuring a secure contact between the insert block 301 and the support arm 2.
[0045] like Figure 7As shown, the limiting component 4 includes a housing 401 and a gear ring 405. The housing 401 is welded to the insert block 301, and the gear ring 405 is rotatably connected inside the housing 401. The gear ring 405 is welded to the rotating rod 302. The rotation of the rotating rod 302 drives the gear ring 405 to rotate synchronously. Similarly, by limiting the rotation of the gear ring 405, the rotation of the rotating rod 302 can be limited. A cover 409 is welded to one end face of the housing 401. The cover 409 encloses the gear ring 405 inside the housing 401 to prevent external factors from interfering with the rotation of the gear ring 405. A second groove 402 is provided on one end face of the housing 401. A limiting rod 406 matching the gear ring 405 is slidably connected in the groove wall of the second groove 402. The limiting rod 406 has teeth matching the gear ring 405. When the limiting rod 406 abuts against the gear ring 405, the limiting rod 406 locks the gear ring 405, preventing the gear ring 405 from rotating, which in turn prevents the rotating rod 302 from rotating. A spring 408 is slidably connected in the groove wall of the second groove 402. The spring 408 abuts against the limiting rod 406, and the spring 408 pushes the limiting rod 406 to abut against the gear ring 405. A third sliding groove 403 is provided on one end face of the housing 401. A handle 407 is welded to the side wall of the limiting rod 406. The handle 407 slides within the groove wall of the third sliding groove 403. A limiting groove 404 is provided on one end face of the housing 401. Pulling the handle 407 can move the limiting rod 406, causing the limiting rod 406 to separate from the gear ring 405, thus no longer restricting the rotation of the gear ring 405. At this time, the rotating rod 302 can be rotated. When it is necessary to rotate the rotating rod 302, pull the handle 407, causing the handle 407 to slide into the limiting groove 404. At this time, the limiting rod 406 separates from the gear ring 405, and the limiting rod 406 no longer jams the gear ring 405, thus allowing the rotating rod 302 to rotate.
[0046] When using, such as Figure 1As shown, the support arm 2 is slidably connected to the gantry 1. After the support arm 2 is adjusted to a suitable position, the insert block 301 is inserted into the first sliding groove 103. The insert block 301 slides in the first sliding groove 103, and one end face of the insert block 301 abuts against the support arm 2. Since the thickness of the insert block 301 gradually increases from the bottom to the top, the insert block 301 can be inserted into the gap between the support arm 2 and the gantry 1. As the insertion depth of the insert block 301 increases, the contact between the insert block 301 and the support arm 2 becomes tighter and tighter. The support plate 303 abuts against the first groove 104. The rotating rod 302 is rotated so that the rotating rod 302 is threaded into the first threaded hole 201. 2. The insert 301 enters the first threaded hole 201 and gradually slides down until it makes a firm contact with the support arm 2. At this time, the handle 407 is rotated so that it slides out of the limiting groove 404. Under the action of the spring 408, the limiting rod 406 moves closer to the gear ring 405 so that it abuts against the gear ring 405, thereby locking the gear ring 405 and restricting the rotation of the rotating rod 302. This prevents the rotating rod 302 from rotating due to the bumps of the forklift and prevents the insert 301 from loosening its contact with the support arm 2. This securely installs the support arm 2 on the mast 1, preventing the support arm 2 from shaking and enhancing the safety and reliability of forklift operation.
[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A bracket for mounting an arm, characterized in that, include: A gantry, the gantry including a first crossbeam, and a plurality of first grooves are provided on one end face of the first crossbeam; A fastening device includes an insert block and a rotating rod. The insert block is slidably connected to the groove wall of a first sliding groove. One end face of the insert block abuts against a support arm. The thickness of the insert block gradually increases from the bottom to the top. The rotating rod is rotatably connected to the insert block. One end face of the support arm has a first threaded hole, and the rotating rod is threaded into the first threaded hole.
2. The bracket for mounting a support arm according to claim 1, characterized in that, A shaft hole is opened on one end face of the insert block, and the rotating rod is rotatably connected in the hole wall of the shaft hole. A third groove is opened on the opposite end face of the insert block, and a limit ring is rotatably connected in the groove wall of the third groove. The limit ring is fixedly connected to the rotating rod.
3. The bracket for mounting a support arm according to claim 1, characterized in that, The first slide is a T-shaped slide, and the insert is an I-shaped slider.
4. The bracket for mounting a support arm according to claim 3, characterized in that, The bottom of the insert has a chamfer.
5. A bracket for mounting an arm according to any one of claims 1 to 4, characterized in that, The gantry has a plurality of first grooves on one side end face that match the first sliding groove. The fastening device also includes a support plate, which abuts against the groove wall of the first groove and is threadedly connected to the rotating rod.
6. A bracket for mounting an arm according to claim 5, characterized in that, A pair of limiting blocks that match the first slide groove are fixedly connected to the bottom end face of the support plate.
7. A bracket for mounting an arm according to claim 6, characterized in that, The bottom end face of the limiting block is chamfered.
8. A bracket for mounting an arm according to claim 7, characterized in that, A limit assembly is fixedly connected to one end face of the insert.
9. A bracket for mounting an arm according to claim 8, characterized in that, The limiting assembly includes a housing and a gear ring. The housing is fixedly connected to the insert block, and the gear ring is rotatably connected inside the housing. The gear ring is fixedly connected to a rotating rod. A cover is fixedly connected to one end face of the housing. A second sliding groove is formed on one end face of the housing. A limiting rod matching the gear ring is slidably connected in the groove wall of the second sliding groove. A spring is slidably connected in the groove wall of the second sliding groove, and the spring abuts against the limiting rod. A third sliding groove is formed on one end face of the housing. A handle is fixedly connected to the side wall of the limiting rod, and the handle slides in the groove wall of the third sliding groove. A limiting groove is formed on one end face of the housing.
10. A bracket for mounting an arm according to claim 9, characterized in that, A connecting plate is fixedly connected inside the wall of the first chute. A circular hole is opened on one end face of the connecting plate. The rotating rod rotates inside the circular hole. The diameter of the circular hole is larger than the cross-sectional diameter of the rotating rod.