Clamping assembly of test bench
By adding a top-tight anti-rotation structure to the clamping frame of the mechanics test bench, the problem of poor stability of the clamping frame in the prior art is solved, and stable clamping of objects of different shapes is achieved, and the scope of use and stability are improved.
Patent Information
- Application Number
- CN202420282949.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-06
AI Technical Summary
The existing mechanical test bench clamping frames have a risk of loosening due to screw clamping and poor stability, making it difficult to effectively clamp objects of different shapes.
The clamping structure is added to the clamping structure. By cooperating with the clamping screw, the bearing and restraining rod, the top support of the spring and the clamping plate is used to prevent the clamping screw from rotating and improve clamping stability.
It effectively avoids loosening of the clamping frame, improves the stable clamping ability of objects of different shapes, and enhances the scope of use and stability.
Smart Images
Figure CN222131968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of experimental instruments, in particular to a clamping component of a test bench. Background Art
[0002] Experimental instruments are instruments used in specific experiments in natural sciences, mainly in physics, chemistry, and biology.
[0003] At present, there are many types of experimental instruments commonly used in physics laboratories, and the most frequently used ones are mainly clamping instruments, especially some instruments used for mechanics experiments.
[0004] There is a mechanical test bench clamping frame with Chinese patent publication number CN205903914U, which has a simple structure, is easy to manufacture and has low cost. By setting a height adjustment device, the height of the mechanical test bench clamping frame can be conveniently adjusted, and rollers are provided at the bottom of the mechanical test bench clamping frame to facilitate its movement. The clamping device of the mechanical test bench clamping frame is provided with two relative clamping rings. Since the two clamping rings have relative arc portions, objects of different shapes such as prisms and cylinders can be conveniently clamped, which makes its use range larger.
[0005] However, since the device is clamped by screws, there is a risk of loosening and poor stability. Utility Model Content
[0006] 1. Technical issues to be resolved
[0007] In view of the deficiencies of the prior art, the utility model provides a clamping assembly for a test bench, which is provided with a screw-mounted clamping structure and an anti-rotation structure for the screw rod to improve the clamping stability.
[0008] (II) Technical solution
[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping assembly of a test bench, including a test bench, and also including a connecting frame, a clamping screw sleeve, a clamping screw, a clamping wrench, a bearing, a sleeve seat, a restraining rod, a restraining sleeve, a mounting block, a clamping frame, a connecting piece, a spring and a clamping plate. The rear side of the top end of the test bench is connected to the middle part of the rear side of the connecting frame through a lifting mechanism, and a group of clamping screw sleeves are respectively connected to the inner sides of the left and right parts of the connecting frame. The inner wall of each group of clamping screw sleeves is respectively screwed and connected to the outer wall of a group of clamping screws. The clamping screws are The outer end is connected to the middle part of the inner end of the clamping screw, the inner end of the clamping screw is rotatably connected to the middle part of the outer end of the sleeve through a bearing, a group of constraint rods are respectively connected to the front and rear sides of the outer end of the sleeve, and a group of constraint sleeves are respectively connected to the inner sides of the front and rear parts of the left and right ends of the connecting frame. The outer side of the constraint rod is slidably connected to the inner side of the constraint sleeve, the middle part of the outer end of the clamping frame is connected to the inner end of the mounting block, and the mounting block can be detachably installed in the sleeve, the upper and middle sides of the left and right ends of the connecting frame are respectively connected to the outer sides of the bottom ends of a group of connecting plates, and the inner sides of the bottom ends of the connecting plates are connected to the top of the clamping plate through a spring.
[0010] Preferably, it also includes a sliding sleeve, a sliding rod and a handle, the inner side of the middle part of each group of connecting plates is connected to the outer side of the sliding sleeve, the inner wall of the sliding sleeve is slidably connected to the outer wall of the sliding rod, the top of the sliding rod is connected to the middle part of the bottom end of the handle, and the bottom end of the sliding rod is connected to the middle part of the top end of the card plate.
[0011] Preferably, the lifting mechanism includes a tightening nut, a tightening screw, a tightening wrench, a vertical rail and a lifting sleeve. The middle and rear side of the top end of the test bench is connected to the bottom end of the vertical rail, the outer side of the vertical rail is slidably connected to the inner side of the lifting sleeve, the middle of the right end of the lifting sleeve is connected to the inner end of the tightening nut, the inner wall of the tightening nut is threadedly connected to the outer wall of the tightening screw, the outer side of the tightening screw is connected to the middle part of the inner side of the tightening nut, and the front end of the lifting sleeve is connected to the middle of the rear end of the connecting frame.
[0012] Preferably, it also includes a connecting frame and a counterweight block, and the rear side of the lifting sleeve is connected to the middle part of the front side of the counterweight block via the connecting frame.
[0013] Preferably, it also includes a drawer frame and a drawer, the bottom end of the test bench is connected to the top end of the drawer frame, and the inner side of the drawer frame is slidably connected to the outer side of the drawer forward.
[0014] Preferably, it also includes a drawer handle, and the middle part of the front end of the drawer is connected to the rear end of the drawer handle.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a clamping assembly for a test bench, which has the following beneficial effects:
[0017] The connecting frame is adjusted to the corresponding height through the lifting mechanism, and a suitable clamping frame is selected. The mounting block of the clamping frame is inserted into the inner side of the sleeve, and then the object to be clamped is placed on the inner side of the two sets of clamping frames. The clamping screw is rotated by turning the clamping wrench. The clamping screw is threadedly matched with the clamping screw sleeve. Under the rotation connection of the bearing, the clamping frame is moved inwardly through the sliding constraint of the two sets of constraint rods on the inner side of the constraint sleeve, thereby clamping the object. Under the connection of the connecting piece, the spring acts on the clamping plate to support it downward on the upper side of the clamping screw to prevent the clamping screw from rotating. On the clamping structure adopting threaded clamping, a tightening and anti-rotation structure for the screw is added to improve the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an axial view of the schematic diagram of the structure of the utility model;
[0019] Figure 2 For this utility model Figure 1 Front view of
[0020] Figure 3 For this utility model Figure 1 The top view of
[0021] Figure 4 For this utility model Figure 1 Right view of .
[0022] Markings in the attached drawings: 1. test bench; 2. connecting frame; 3. clamping screw sleeve; 4. clamping screw; 5. clamping wrench; 6. bearing; 7. sleeve seat; 8. restraining rod; 9. restraining sleeve; 10. mounting block; 11. clamping frame; 12. connecting piece; 13. spring; 14. clamping plate; 15. sliding sleeve; 16. sliding rod; 17. handle; 18. connecting frame; 19. counterweight; 20. jacking screw sleeve; 21. jacking screw; 22. jacking wrench; 23. vertical rail; 24. lifting sleeve; 25. drawer frame; 26. drawer; 27. drawer handle. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example
[0025] See also Figure 1-Figure 4, a clamping assembly of a test bench, including a test bench 1, and also including a connecting frame 2, a clamping screw sleeve 3, a clamping screw 4, a clamping wrench 5, a bearing 6, a sleeve seat 7, a constraint rod 8, a constraint sleeve 9, a mounting block 10, a clamping frame 11, a connecting piece 12, a spring 13 and a clamping plate 14, the rear side of the top end of the test bench 1 is connected to the middle part of the rear side of the connecting frame 2 through a lifting mechanism, and a group of clamping screw sleeves 3 are respectively connected to the inner sides of the left and right parts of the connecting frame 2, and the inner walls of each group of clamping screw sleeves 3 are respectively screwed and connected to the outer walls of a group of clamping screws 4, and the outer ends of the clamping screws 4 are connected to the middle part of the inner end of the clamping wrench 5, and the inner ends of the clamping screws 4 are rotatably connected to the middle part of the outer end of the sleeve seat 7 through the bearing 6, and the front and rear sides of the outer ends of the sleeve seat 7 are respectively connected to a group of constraint rods 8, and the front and rear inner sides of the left and right ends of the connecting frame 2 are respectively connected to a group of constraint sleeves 9, and the outer side of the constraint rod 8 is slidably connected to the inner side of the constraint sleeve 9, and the outer end of the clamping frame 11 is connected to the inner side of the constraint sleeve 9. The upper and middle sides of the left and right ends of the connecting frame 2 are respectively connected to the outer sides of the bottom ends of a group of connecting pieces 12, and the inner sides of the bottom ends of the connecting pieces 12 are connected to the top ends of the card plates 14 through springs 13; the connecting frame 2 is adjusted to the corresponding height through the lifting mechanism, and a suitable clamping frame 11 is selected, and the mounting block 10 of the clamping frame 11 is inserted into the inner side of the sleeve 7, and then the object to be clamped is placed on the inner sides of the two groups of clamping frames 11, and the clamping screw 4 is rotated by twisting the clamping hand 5, and the clamping screw 4 is threadedly matched with the clamping screw sleeve 3, and under the rotation connection of the bearing 6, the clamping frame 11 is moved inwardly through the sliding constraint of the two groups of constraint rods 8 on the inner side of the constraint sleeve 9, thereby acting on the object to be clamped, and under the connection of the connecting piece 12, the spring 13 acts on the card plate 14 to support it downward on the upper side of the clamping screw 4 to prevent the clamping screw 4 from rotating.
[0026] It also includes a sliding sleeve 15, a sliding rod 16 and a handle 17. The inner side of the middle part of each group of connecting plates 12 is connected to the outer side of the sliding sleeve 15, the inner wall of the sliding sleeve 15 is slidably connected to the outer wall of the sliding rod 16, the top of the sliding rod 16 is connected to the middle part of the bottom end of the handle 17, and the bottom end of the sliding rod 16 is connected to the middle part of the top end of the clamping plate 14; by holding the handle 17, the sliding rod 16 can be slid and pulled up on the inner side of the sliding sleeve 15 to disengage the clamping plate 14 from the clamping screw 4 for easy rotation and adjustment.
[0027] The lifting mechanism includes a tightening nut 20, a tightening screw 21, a tightening hand 22, a vertical rail 23 and a lifting sleeve 24. The middle and rear side of the top of the test bench 1 is connected to the bottom end of the vertical rail 23, the outer side of the vertical rail 23 is slidably connected to the inner side of the lifting sleeve 24, the middle of the right end of the lifting sleeve 24 is connected to the inner end of the tightening nut 20, the inner wall of the tightening nut 20 is screwed to the outer wall of the tightening screw 21, the outer side of the tightening screw 21 is connected to the middle of the inner side of the tightening nut 20, and the front end of the lifting sleeve 24 is connected to the middle of the rear end of the connecting frame 2; by sliding the lifting sleeve 24 on the outer side of the vertical rail 23, the connecting frame 2 can be connected to adjust the vertical height, and by twisting the tightening hand 22, the tightening screw 21 can be rotated, and the tightening screw 21 acts on the right side of the vertical rail 23 inwardly to tighten through the screwing cooperation with the tightening nut 20, so as to be fixed at this position.
[0028] It also includes a connecting frame 18 and a counterweight block 19. The rear side of the lifting sleeve 24 is connected to the middle part of the front side of the counterweight block 19 through the connecting frame 18. When the connecting frame 18 is connected to the counterweight block 19, the front and rear balance can be maintained, the vertical rail 23 can be prevented from being tilted, and the stability can be improved.
[0029] It also includes a drawer frame 25 and a drawer 26. The bottom end of the test bench 1 is connected to the top end of the drawer frame 25, and the inner side of the drawer frame 25 is slidably connected to the outer side of the drawer 26 forward; the mounting block 10 and the clamping frame 11 can be stored in the drawer 26 and slid into the drawer frame 25 for protection, thereby increasing functionality.
[0030] The drawer 26 further includes a drawer handle 27, and the middle of the front end of the drawer 26 is connected to the rear end of the drawer handle 27; by holding the drawer handle 27, it is convenient to slide the drawer 26 open and close, thereby improving convenience.
[0031] In summary, when a clamping assembly of a test bench is in use, the lifting sleeve 24 can be slid on the outside of the vertical rail 23 to connect the connecting frame 2 for vertical height adjustment, and the tightening screw 21 can be rotated by twisting the tightening handle 22. The tightening screw 21 acts on the right side of the vertical rail 23 inwardly through threaded cooperation with the tightening screw sleeve 20 to tighten, thereby fixing it in this position. A suitable clamping frame 11 is selected, and the mounting block 10 of the clamping frame 11 is inserted into the inner side of the sleeve seat 7. Then, the object to be clamped is placed on the inner side of the two groups of clamping frames 11. By holding the handle 17, the sliding rod 16 can be slid and pulled up on the inner side of the sliding sleeve 15 to separate the clamping plate 14 from the clamping screw 4. By twisting the clamping handle 5, the clamping The tightening screw 4 rotates, and the clamping screw 4 is threadedly fitted with the clamping screw sleeve 3. Under the rotation connection of the bearing 6, the two sets of constraint rods 8 are slidably constrained on the inner side of the constraint sleeve 9 to move the clamping frame 11 inward, thereby clamping the object. Under the connection of the connecting piece 12, the spring 13 acts on the clamping plate 14 to support it downward on the upper side of the clamping screw 4 to prevent the clamping screw 4 from rotating. In addition, under the connection of the connecting frame 18 to the counterweight block 19, the front and rear balance can be maintained, the vertical rail 23 can be prevented from being tilted, and the stability is improved. The installation block 10 and the clamping frame 11 can be stored in the drawer 26, and the drawer handle 27 can be held to slide the drawer 26 into the drawer frame 25 for protection, thereby increasing functionality.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A clamping assembly for a test bench, comprising a test bench (1), It is characterized in that The test bench (1) further comprises a connecting frame (2), a clamping screw sleeve (3), a clamping screw (4), a clamping hand (5), a bearing (6), a sleeve seat (7), a restraining rod (8), a restraining sleeve (9), a mounting block (10), a clamping frame (11), a connecting piece (12), a spring (13) and a clamping plate (14). The rear side of the top end of the test bench (1) is connected to the middle part of the rear side of the connecting frame (2) via a lifting mechanism. The inner sides of the left and right parts of the connecting frame (2) are respectively connected with a group of clamping screw sleeves (3). The inner wall of each group of clamping screw sleeves (3) is respectively screwed to the outer wall of a group of clamping screws (4). The outer end of the clamping screw (4) is connected to the middle part of the inner end of the clamping hand (5). The inner end of the tightening screw (4) is rotatably connected to the middle of the outer end of the sleeve (7) via a bearing (6); the front and rear sides of the outer end of the sleeve (7) are respectively connected to a group of constraint rods (8); the inner sides of the front and rear parts of the left and right ends of the connecting frame (2) are respectively connected to a group of constraint sleeves (9); the outer side of the constraint rod (8) is slidably connected to the inner side of the constraint sleeve (9); the middle of the outer end of the clamping frame (11) is connected to the inner end of the mounting block (10); the mounting block (10) is detachably mounted in the sleeve (7); the upper and middle sides of the left and right ends of the connecting frame (2) are respectively connected to the outer sides of the bottom ends of a group of connecting plates (12); the inner sides of the bottom ends of the connecting plates (12) are connected to the top of the clamping plate (14) via a spring (13).
2. The clamping assembly of the test bench according to claim 1, Features: It also includes a sliding sleeve (15), a sliding rod (16) and a handle (17), wherein the inner side of the middle part of each group of connecting plates (12) is connected to the outer side of the sliding sleeve (15), the inner wall of the sliding sleeve (15) is slidably connected to the outer wall of the sliding rod (16), the top end of the sliding rod (16) is connected to the middle part of the bottom end of the handle (17), and the bottom end of the sliding rod (16) is connected to the middle part of the top end of the clamping plate (14).
3. The clamping assembly of the test bench according to claim 1, Features: The lifting mechanism comprises a tightening screw sleeve (20), a tightening screw rod (21), a tightening hand (22), a vertical rail (23) and a lifting sleeve (24); the middle rear side of the top end of the test bench (1) is connected to the bottom end of the vertical rail (23); the outer side of the vertical rail (23) is slidably connected to the inner side of the lifting sleeve (24); the middle part of the right end of the lifting sleeve (24) is connected to the inner end of the tightening screw sleeve (20); the inner wall of the tightening screw sleeve (20) is screwed to the outer wall of the tightening screw rod (21); the outer side of the tightening screw rod (21) is connected to the middle part of the inner side of the tightening screw sleeve (20); and the front end of the lifting sleeve (24) is connected to the middle part of the rear end of the connection frame (2).
4. The clamping assembly of the test bench according to claim 3, Features: It also includes a connecting frame (18) and a counterweight (19), and the rear side of the lifting sleeve (24) is connected to the middle part of the front side of the counterweight (19) via the connecting frame (18).
5. The clamping assembly of the test bench according to claim 1, Features: It also comprises a drawer frame (25) and a drawer (26), wherein the bottom end of the test bench (1) is connected to the top end of the drawer frame (25), and the inner side of the drawer frame (25) is slidably connected to the outer side of the drawer (26) forward.
6. The clamping assembly of the test bench according to claim 5, Features: It also includes a drawer handle (27), and the middle part of the front end of the drawer (26) is connected to the rear end of the drawer handle (27).