Lifting lug fixing device for cement chassis production

Abstract

The utility model belongs to the technical field of cement chassis production, and particularly relates to a lifting lug fixing device for cement chassis production, which comprises a supporting arm, a plurality of first clamping plates are fixedly connected to the outer wall of the supporting arm, two fixing rings are fixedly connected to the inner walls of the first clamping plates in a symmetrical structure, and a connecting shaft is rotatably connected to the inner walls of the first clamping plates. The two ends of the connecting shaft are sleeved with torsional springs, penetrate through the fixing rings respectively and extend to the outer sides of the fixing rings. A shifting block is pressed to drive a second clamping plate to rotate, a first clamping plate and the second clamping plate can clamp and fix a lifting lug under the torsion effect of a torsion spring, concrete slurry is injected into a mold, at the moment, the mold drives a plurality of connecting lug plates to slide up and down along a supporting rod under the gravity effect, and at the moment, the mold drives a fixing plate to move downwards; and the gear drives the supporting arm to rotate, so that the lifting lug can be automatically inserted into the concrete, the workload of operators is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement chassis production, and more specifically to a lifting eye fixing device for cement chassis production. Background Art

[0002] The cement chassis is the underground foundation of the cement pole, commonly known as one of the three cement plates. It is located at the bottom of the pole and is mainly used to bear the downward pressure of the pole. The role of the cement chassis is mainly reflected in two aspects: First, it stabilizes the pole and prevents it from sinking; during the construction process, the foundation pit needs to be dug first, and then the chassis is placed in, and its weight and shape characteristics ensure the stability and verticality of the pole. Second, it is connected to the bottom of the pole, so that even if the pole is high, it will not tilt or collapse.

[0003] In the existing technology, such as the document with publication number CN214925563U, a lifting ear fixing device for cement chassis production is specifically disclosed. In the document, the device is installed by a worker hanging the lifting ear on the lifting ear hook, and then the lower end of the lifting ear is sunk into the concrete. The manual installation method will increase the workload of the operator and lead to low production efficiency of the cement chassis. Therefore, we propose a lifting ear fixing device for cement chassis production. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a lifting ear fixing device for cement chassis production, which solves the technical problem that the worker hangs the lifting ear on the lifting ear hook and then sinks the lower end of the lifting ear into concrete through manual installation, which increases the workload of the operator and leads to low production efficiency of the cement chassis.

[0005] The utility model proposes a lifting ear fixing device for cement chassis production, comprising a support arm, wherein the outer wall of the support arm is fixedly connected to a plurality of first clamps, the inner wall of the first clamp is symmetrically structured and fixedly connected to two fixing rings, the inner wall of the first clamp is rotatably connected to a connecting shaft, both ends of the connecting shaft are sleeved with torsion springs, both ends of the connecting shaft respectively pass through the fixing rings and extend to the outside thereof, the circumferential outer wall of the connecting shaft is fixedly connected to a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected to a second clamp, the two ends of the connecting shaft are respectively fixedly connected to a second limiting sleeve, the outer wall of the second clamp is fixedly connected to a shift block, and a slot is provided on the relatively close side of the first clamp and the second clamp.

[0006] Preferably, one end of the torsion spring is fixedly connected to the second limiting sleeve, and the other end of the torsion spring is fixedly connected to the fixing ring.

[0007] Preferably, the inner walls of the plurality of slots are fixedly connected with rubber sleeves, and the inner walls of the rubber sleeves are frosted.

[0008] Preferably, it also includes a mounting seat, a mold is provided above the mounting seat, the circumferential outer wall of the mold is an annular structure with equal spacing and is fixedly connected to a plurality of connecting ear plates, the top of the mounting seat is annular with equal spacing and is fixedly connected to a plurality of support rods, the circumferential outer walls of the plurality of support rods are all sleeved with springs, and the circumferential outer walls of the plurality of support rods are all fixedly connected to a first limiting sleeve.

[0009] Preferably, one end of the spring is fixedly connected to the connecting ear plate, and the other end of the spring is fixedly connected to the mounting seat.

[0010] Preferably, a fixing plate is fixedly connected to the outer wall of the mounting seat, a mounting groove is opened on the top of the fixing plate, a rotating shaft is rotatably connected to the inner wall of the mounting groove, the rotating shaft passes through the support arm and is fixedly connected thereto, a gear is fixedly connected to the circumferential outer wall of the rotating shaft, the top of the mounting seat is fixedly connected to the support plate, the outer wall of the support plate is fixedly connected to a toothed plate, and the toothed plate is meshed with the gear.

[0011] Preferably, the first clamping plate is sleeved on the support arm and slidably connected thereto, the outer wall of the first clamping plate is fixedly connected to an elastic pressing plate via an elastic member, and the end of the elastic pressing plate is in frictional contact with the outer wall of the support arm.

[0012] The beneficial effects of the present invention are:

[0013] 1. By pressing the shift block to drive the second clamping plate to rotate, under the torsion of the torsion spring, the first clamping plate and the second clamping plate can clamp and fix the lifting ear through the rubber sleeve inside the card slot, and inject concrete slurry into the mold. At this time, the mold drives multiple connecting ear plates to slide up and down along the support rod under the action of gravity. At this time, the spring is compressed, and the mold drives the fixed plate to move downward. At this time, the gear is engaged with the toothed plate. At this time, the gear drives the support arm to rotate, so that the lifting ear can be automatically inserted into the concrete, reducing the workload of the operator and improving production efficiency.

[0014] 2. By pressing the elastic pressure plate, the elastic pressure plate is released from squeezing the outer wall of the support arm. At this time, the first clamping plate can slide along the outer wall of the support arm to adjust the installation position of the lifting ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the second clamping plate of the utility model;

[0018] Figure 4This is a schematic diagram of the installation structure of the first clamping plate of the utility model.

[0019] In the figure: 1. mounting seat; 2. mould; 3. connecting ear plate; 4. support rod; 5. first limiting sleeve; 6. spring; 7. support plate; 8. tooth plate; 9. fixing plate; 10. mounting groove; 11. rotating shaft; 12. gear; 13. support arm; 14. first clamping plate; 15. fixing ring; 16. connecting sleeve; 17. connecting shaft; 18. second limiting sleeve; 19. torsion spring; 20. second clamping plate; 21. shift block; 22. slot; 23. rubber sleeve; 24. elastic pressure plate. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, a lifting ear fixing device for cement chassis production includes a support arm 13, a plurality of first clamping plates 14 are fixedly connected to the outer wall of the support arm 13, the inner wall of the first clamping plate 14 is symmetrically structured and fixedly connected to two fixing rings 15, the inner wall of the first clamping plate 14 is rotatably connected to a connecting shaft 17, both ends of the connecting shaft 17 are sleeved with torsion springs 19, both ends of the connecting shaft 17 respectively penetrate the fixing ring 15 and extend to the outside thereof, a connecting sleeve 16 is fixedly connected to the circumferential outer wall of the connecting shaft 17, a second clamping plate 20 is fixedly connected to the outer wall of the connecting sleeve 16, both ends of the connecting shaft 17 are respectively fixedly connected to a second limiting sleeve 18, a shifting block 21 is fixedly connected to the outer wall of the second clamping plate 20, a slot 22 is provided on the relatively close side of the first clamping plate 14 and the second clamping plate 20, one end of the torsion spring 19 is fixedly connected to the second limiting sleeve 18, The other end of the torsion spring 19 is fixedly connected to the fixing ring 15, and the inner walls of the multiple card slots 22 are fixedly connected with rubber sleeves 23, and the inner walls of the rubber sleeves 23 are frosted. By pressing the shift block 21, the second clamping plate 20 is driven to rotate. Under the torsion of the torsion spring 19, the first clamping plate 14 and the second clamping plate 20 can clamp and fix the lifting ear through the rubber sleeves 23 inside the card slots 22. By injecting concrete slurry into the mold 2, the mold 2 drives the multiple connecting ear plates 3 to slide up and down along the support rod 4 under the action of gravity. At this time, the spring 6 is compressed, and the mold 2 drives the fixing plate 9 to move downward. At this time, the gear 12 is meshed with the tooth plate 8. At this time, the gear 12 drives the support arm 13 to rotate, so that the lifting ear can be automatically inserted into the concrete, reducing the workload of the operator and improving the production efficiency.

[0022] like Figure 1 As shown, it also includes a mounting seat 1, a mold 2 is provided above the mounting seat 1, the circumferential outer wall of the mold 2 is a ring-shaped evenly spaced structure fixedly connected to a plurality of connecting ear plates 3, the top of the mounting seat 1 is a ring-shaped evenly spaced structure fixedly connected to a plurality of support rods 4, the circumferential outer walls of the plurality of support rods 4 are all sleeved with springs 6, the circumferential outer walls of the plurality of support rods 4 are all fixedly connected to a first limiting sleeve 5, one end of the spring 6 is fixedly connected to the connecting ear plate 3, and the other end of the spring 6 is fixedly connected to the mounting seat 1.

[0023] like Figure 1 and Figure 2 As shown, a fixing plate 9 is fixedly connected to the outer wall of the mounting seat 1, a mounting groove 10 is opened on the top of the fixing plate 9, a rotating shaft 11 is rotatably connected to the inner wall of the mounting groove 10, the rotating shaft 11 passes through the supporting arm 13 and is fixedly connected thereto, a gear 12 is fixedly connected to the circumferential outer wall of the rotating shaft 11, a supporting plate 7 is fixedly connected to the top of the mounting seat 1, a toothed plate 8 is fixedly connected to the outer wall of the supporting plate 7, the toothed plate 8 is meshed with the gear 12, a first clamping plate 14 is sleeved on the supporting arm 13 and is slidably connected thereto, an elastic pressure plate 24 is fixedly connected to the outer wall of the first clamping plate 14 through an elastic member, an end of the elastic pressure plate 24 is in frictional contact with the outer wall of the supporting arm 13, and the elastic pressure plate 24 is released from the extrusion on the outer wall of the supporting arm 13 by pressing the elastic pressure plate 24. At this time, the first clamping plate 14 can slide along the outer wall of the supporting arm 13 by sliding, thereby adjusting the installation position of the lifting ear.

[0024] Working principle: by pressing the shift block 21 to drive the second clamping plate 20 to rotate, the first clamping plate 14 and the second clamping plate 20 are opened, and the ear is placed in the slot 22 between the first clamping plate 14 and the second clamping plate 20. Under the torsion of the torsion spring 19, the first clamping plate 14 and the second clamping plate 20 can clamp and fix the ear through the rubber sleeve 23 inside the slot 22;

[0025] By injecting concrete slurry into the mold 2, the mold 2 drives the multiple connecting ear plates 3 to slide up and down along the support rod 4 under the action of gravity. At this time, the spring 6 is compressed, and the mold 2 drives the fixed plate 9 to move downward. At this time, the gear 12 is engaged with the toothed plate 8, and the gear 12 drives the support arm 13 to rotate, so that the lifting ear can be automatically inserted into the concrete;

[0026] By pressing the elastic pressing plate 24 , the elastic pressing plate 24 is released from pressing the outer wall of the support arm 13 . At this time, the first clamping plate 14 can slide along the outer wall of the support arm 13 , thereby adjusting the installation position of the hanging ear.

[0027] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A lifting lug fixing device for cement chassis production, comprising a support arm (13), characterized in that: The outer wall of the support arm (13) is fixedly connected with a plurality of first clamping plates (14); the inner wall of the first clamping plate (14) is symmetrically structured and fixedly connected with two fixing rings (15); the inner wall of the first clamping plate (14) is rotatably connected with a connecting shaft (17); both ends of the connecting shaft (17) are sleeved with torsion springs (19); both ends of the connecting shaft (17) respectively penetrate the fixing ring (15) and extend to the outside thereof; the circumferential outer wall of the connecting shaft (17) is fixedly connected with a connecting sleeve (16); the outer wall of the connecting sleeve (16) is fixedly connected with a second clamping plate (20); both ends of the connecting shaft (17) are fixedly connected with a second limiting sleeve (18); the outer wall of the second clamping plate (20) is fixedly connected with a shifting block (21); and a relatively close side of the first clamping plate (14) and the second clamping plate (20) is provided with a card slot (22).

2. The lifting eye fixing device for cement chassis production according to claim 1 is characterized in that: One end of the torsion spring (19) is fixedly connected to the second limiting sleeve (18), and the other end of the torsion spring (19) is fixedly connected to the fixing ring (15).

3. The lifting lug fixing device for cement chassis production according to claim 2 is characterized in that: The inner walls of the plurality of clamping slots (22) are all fixedly connected with rubber sleeves (23), and the inner walls of the rubber sleeves (23) are frosted surfaces.

4. The lifting eye fixing device for cement chassis production according to claim 3 is characterized in that: The mounting seat (1) is also comprised of a mounting seat (1), a mold (2) is provided above the mounting seat (1), a plurality of connecting ear plates (3) are fixedly connected to the circumferential outer wall of the mold (2) in an annular structure with equal spacing, a plurality of support rods (4) are fixedly connected to the top of the mounting seat (1) in an annular structure with equal spacing, a spring (6) is sleeved on the circumferential outer walls of the plurality of support rods (4), and a first limiting sleeve (5) is fixedly connected to the circumferential outer walls of the plurality of support rods (4).

5. The lifting eye fixing device for cement chassis production according to claim 4 is characterized in that: One end of the spring (6) is fixedly connected to the connecting ear plate (3), and the other end of the spring (6) is fixedly connected to the mounting seat (1).

6. The lifting eye fixing device for cement chassis production according to claim 5, characterized in that: The outer wall of the mounting seat (1) is fixedly connected to a fixing plate (9), a mounting groove (10) is provided on the top of the fixing plate (9), a rotating shaft (11) is rotatably connected to the inner wall of the mounting groove (10), the rotating shaft (11) passes through a supporting arm (13) and is fixedly connected thereto, a gear (12) is fixedly connected to the circumferential outer wall of the rotating shaft (11), a supporting plate (7) is fixedly connected to the top of the mounting seat (1), a toothed plate (8) is fixedly connected to the outer wall of the supporting plate (7), and the toothed plate (8) is meshed with the gear (12).

7. The lifting eye fixing device for cement chassis production according to claim 6 is characterized in that: The first clamping plate (14) is sleeved on the support arm (13) and is slidably connected thereto; the outer wall of the first clamping plate (14) is fixedly connected to an elastic pressure plate (24) via an elastic member; the end of the elastic pressure plate (24) is in frictional contact with the outer wall of the support arm (13).

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