Clamping jaw structure of arch bolting and grouting combined operation trolley

Abstract

A clamping jaw structure of an arch-bolting-grouting combined operation trolley relates to the technical field of tunnel construction equipment and comprises a fixed seat, and two ends of the fixed seat are respectively provided with a group of clamps; a cavity is formed in the bottom of the fixing base, and a telescopic cylinder used for driving the two clamps to be opened or closed is arranged in the cavity. The two ends of the telescopic cylinder are in corresponding driving connection with the corresponding clamps through fork-shaped connecting mechanisms, and each fork-shaped connecting mechanism comprises a guide sliding groove formed in the bottom of the fixing base and a sliding block in corresponding sliding fit with the guide sliding groove. One end, corresponding to the bottom of the fixed seat, of the U-shaped clamping arm is fixedly connected with a connecting rod; the two connecting rods of the same clamp are correspondingly crossed and staggered up and down; a guide rod movably penetrating through the strip-shaped sliding groove is arranged on a sliding block body, and the end, away from the sliding block, of the guide rod is correspondingly connected with the telescopic cylinder. The two sets of clamps can be driven to be opened or closed only by controlling one telescopic cylinder, the two sets of clamps can automatically adapt to irregular objects, and the clamping reliability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a gripper structure for an arch-anchor-grouting combined operation trolley. Background Technology

[0002] Installing arch frames is a crucial step in tunnel construction, designed to provide initial support and stability to the tunnel. Especially in areas with poor geological conditions, arch frames can effectively prevent the collapse of surrounding rock, ensuring the safety of construction workers and the smooth progress of construction.

[0003] Chinese patent (publication number: CN209892246U) discloses an angle-adjustable telescopic arm for steel arch frame installation; the gripper mechanism of this patent includes a support platform, on which a claw mechanism is provided; the claw mechanism includes claws located on both sides of the support platform and a claw connecting rod and a clamping cylinder located at the bottom of the support platform; the two claw mechanisms are driven by two clamping cylinders, the control method is complex and the cost of use is high. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a gripper structure for an arch anchor injection combined operation trolley.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A gripper structure for an arch anchor injection combined operation trolley includes a fixed base with a set of clamps at both ends. The bottom of the fixed base has a cavity containing a telescopic cylinder for driving the two sets of clamps to open or close. Each clamp includes two U-shaped gripping arms symmetrically arranged on both sides of the fixed base, with one end of each U-shaped gripping arm rotatably connected to the fixed base. Both ends of the telescopic cylinder are driven by corresponding clamps via a fork-shaped connecting mechanism. The fork-shaped connecting mechanism includes a guide groove at the bottom of the fixed base and a slider that slides in accordance with the guide groove. A connecting rod is fastened to one end of each U-shaped gripping arm corresponding to the bottom of the fixed base. Two connecting rods of the same clamp intersect and are staggered vertically. The connecting rod has a strip-shaped groove. The slider has a guide rod that movably passes through the strip-shaped groove, with the end of the guide rod away from the slider connected to the telescopic cylinder.

[0007] Preferably, the bottom of the fixing base is provided with a quick-release mechanism.

[0008] Preferably, the quick-release mechanism includes a square connecting sleeve, and the bottom of the fixing base is provided with a square connector head that can be inserted into the square connecting sleeve. A pin is inserted into the body of the square connecting sleeve, and the square connector head is provided with two pin holes that can be matched with the pin, and the two pin holes are perpendicular to each other.

[0009] Preferably, the U-shaped clamp arm is fitted with a torsion spring for opening the corresponding clamp.

[0010] Preferably, the U-shaped clamping arm is provided with a rubber sleeve at one end corresponding to the top of the fixing base.

[0011] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0012] This utility model discloses a gripper structure for an arch anchor injection combined operation trolley. The control method is simple, easy to assemble, and has low production costs. The bottom of the fixed base has a cavity containing a telescopic cylinder for driving the two sets of clamps to open or close. The telescopic cylinder drives a guide rod, which in turn drives a slider to move along a guide groove. During the movement of the guide rod, a connecting rod deflects, causing the U-shaped clamping arm to rotate, thereby achieving the purpose of driving the clamps to open or close. Only one telescopic cylinder needs to be controlled to drive the two sets of clamps to open or close, and the two sets of clamps can automatically adapt to irregular objects, effectively improving the reliability of clamping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the fixed base.

[0015] In the diagram: 1. Fixed base; 2. Telescopic cylinder; 3. Slider; 4. Connecting rod; 5. U-shaped clamping arm; 6. Guide rod; 7. Square connecting sleeve; 8. Square connector; 9. Guide groove; 10. Strip groove; 11. Pin; 12. Rubber sleeve. Detailed Implementation

[0016] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0017] Example 1, in conjunction with Appendix Figures 1-2 A gripper structure for an arch anchor injection combined operation trolley includes a fixed base 1, with a set of clamps at both ends of the fixed base 1. The bottom of the fixed base 1 has a cavity, in which a telescopic cylinder 2 for driving the two sets of clamps to open or close is installed. Placing the telescopic cylinder 2 in the cavity at the bottom of the fixed base 1 can avoid interference from other components on the movement of the telescopic cylinder 2.

[0018] The clamp comprises two U-shaped clamping arms 5 symmetrically arranged on both sides of the fixing base 1, with one end of each U-shaped clamping arm 5 rotatably connected to the fixing base 1. (See attached image) Figure 1 As shown, the clamping end of the U-shaped clamping arm 5 is not coaxial with the shaft of the U-shaped clamping arm 5. When the U-shaped clamping arm 5 rotates along its shaft, it causes the clamping end to move towards the center to achieve a clamping action or to expand outward to achieve an opening action. A rubber sleeve 12 is provided at one end of the U-shaped clamping arm 5 corresponding to the top of the fixed base 1, which can effectively prevent the U-shaped clamping arm 5 from pinching and damaging the object being clamped.

[0019] Both ends of the telescopic cylinder 2 are driven by corresponding clamps via fork-shaped connecting mechanisms. The fork-shaped connecting mechanism includes a guide groove 9 at the bottom of the fixed base 1 and a slider 3 that slides in accordance with the guide groove 9. A connecting rod 4 is fastened to one end of the U-shaped clamp arm 5 corresponding to the bottom of the fixed base 1. The two connecting rods 4 of the same clamp are cross-shaped and staggered vertically, and the connecting rod 4 has a strip-shaped groove 10. The slider 3 has a guide rod 6 that moves through the strip-shaped groove 10, and the end of the guide rod 6 away from the slider 3 is connected to the telescopic cylinder 2. That is, the telescopic cylinder 2 can drive the guide rod 6, which in turn drives the slider 3 to move along the guide groove 9. During the movement of the guide rod 6, the connecting rod 4 is deflected, and the connecting rod 4 drives the U-shaped clamp arm 5 to rotate, thereby achieving the purpose of driving the clamps to open or close. (See attached...) Figure 2 As shown, the clamp opens when the telescopic cylinder 2 shortens and closes when the telescopic cylinder 2 extends.

[0020] It should be noted that when clamping an irregular object with two sets of clamps, the telescopic cylinder 2 can continue to extend even after one set of clamps has clamped the object, so that the other set of clamps can also clamp the irregular object, thus ensuring the reliability of the clamping.

[0021] Example 2, in conjunction with Appendix Figures 1-2 A gripper structure for an arch anchor injection combined operation trolley differs from Embodiment 1 in that, based on Embodiment 1, the bottom of the fixed base 1 is equipped with a quick-release mechanism, facilitating rapid removal of the fixed base 1 to replace the operation mechanism. The quick-release mechanism includes a square connecting sleeve 7. The bottom of the fixed base 1 has a square connecting head 8 that can be inserted into the square connecting sleeve 7. A pin 11 is inserted into the body of the square connecting sleeve 7. The square connecting head 8 has two pin holes that can be correspondingly engaged with the pin 11, and the two pin holes are perpendicular to each other, as shown in the attached figure. Figure 2 As shown. In use, the square connecting sleeve 7 can be securely connected to the working end of the folding telescopic arm, and the folding telescopic arm can be used to bring the fixed base 1 closer to the object to be clamped. When it is necessary to clamp the object, the square connecting head 8 is inserted into the square connecting sleeve 7, and the square connecting head 8 and the square connecting sleeve 7 are locked together by the pin 11. Since the square connecting head 8 has two corresponding vertical pin holes, the square connecting head 8 can be rotated 90° before being inserted into the square connecting sleeve 7, thereby allowing the fixed base 1 to rotate 90°, so as to adjust the clamping direction according to actual needs.

[0022] Example 3, in conjunction with Appendix Figure 1 A gripper structure for an arch anchor injection combined operation trolley, based on embodiment 1 or 2, features a torsion spring fitted onto the shaft of the U-shaped gripper arm 5 to open the corresponding grippers. The power source of the telescopic cylinder 2 can be disconnected when gripping an object is not required. When the power source of the telescopic cylinder 2 is disconnected, it is in a free telescopic state, and the two sets of grippers automatically open and remain in place under the action of the torsion springs, preventing arbitrary movement of the two sets of grippers and facilitating the next gripping operation.

[0023] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A gripper structure for an arch-anchor-injection combined operation trolley, characterized in that: The device includes a fixed base (1), with a set of clamps at both ends; the bottom of the fixed base (1) has a cavity, and a telescopic cylinder (2) for driving the two sets of clamps to open or close is provided in the cavity; the clamps include two U-shaped clamping arms (5) symmetrically arranged on both sides of the fixed base (1), one end of the U-shaped clamping arm (5) is rotatably connected to the fixed base (1); both ends of the telescopic cylinder (2) are driven to the corresponding clamps through a fork-shaped connecting mechanism, the fork-shaped connecting mechanism includes a guide groove (9) at the bottom of the fixed base (1), and a sliding engagement mechanism corresponding to the guide groove (9). The slider (3) and the U-shaped clamping arm (5) are fastened to one end of the bottom of the fixed seat (1) with a connecting rod (4). The two connecting rods (4) of the same clamp are crossed and staggered vertically. The connecting rod (4) has a strip groove (10) on its body. The slider (3) has a guide rod (6) that moves through the strip groove (10). The end of the guide rod (6) away from the slider (3) is connected to the telescopic cylinder (2). When the irregular object is clamped by the two sets of clamps, when one set of clamps has clamped the object, the telescopic cylinder (2) can continue to extend so that the other set of clamps can also clamp the irregular object. The U-shaped clamp arm (5) is fitted with a torsion spring for opening the corresponding clamps; the power source of the telescopic cylinder (2) can be disconnected when it is not necessary to clamp objects; when the telescopic cylinder (2) is disconnected from the power source, the telescopic cylinder (2) is in a free telescopic state, and the two sets of clamps automatically open and remain under the action of the torsion spring.

2. The gripper structure of the arch-anchor-grouting combined operation trolley as described in claim 1, characterized in that: The bottom of the fixed base (1) is provided with a quick-release mechanism.

3. The gripper structure of the arch-anchor-grouting combined operation trolley as described in claim 2, characterized in that: The quick-release mechanism includes a square connecting sleeve (7), and the bottom of the fixing base (1) is provided with a square connector (8) that can be inserted into the square connecting sleeve (7). The square connecting sleeve (7) is fitted with a pin (11), and the square connector (8) is provided with two pin holes that can be matched with the pin (11), and the two pin holes are perpendicular to each other.

4. The gripper structure of the arch-anchor-grouting combined operation trolley as described in claim 1, characterized in that: The U-shaped clamp (5) is provided with a rubber sleeve (12) at one end of the top of the corresponding fixed base (1).

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