A mortar anchor drilling auxiliary device

Abstract

The utility model discloses a mortar anchor drilling auxiliary device, which belongs to the technical field of tunnel initial support anchor construction, and comprises a base, an oblique support rod, a vertical support rod and a top support, wherein the oblique support rod is provided in two pieces and is arranged on both sides of a vertical support rod, and the lower ends of the two oblique support rods and a vertical support rod are arranged in a line in the length direction of the base, and the upper ends of the two oblique support rods and a vertical support rod are supported on the top support, and the top support is a concave arc structure. The auxiliary device solves the problems of difficult positioning when anchor drilling and the long-term lifting and lifting of the rock drill, thereby achieving the purpose of faster drilling positioning and more labor-saving drilling operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel initial support anchor construction and provides a mortar anchor drilling auxiliary device. Background Art

[0002] Urban subway underground tunnels include underground stations, underground sections, connecting passages and other underground excavation projects. In addition to the shield construction of sections, underground excavation projects such as sections with cross-section changes, subway underground stations, connecting passages, etc. are usually constructed using the shallow buried underground excavation method, that is, a composite lining structure is used, initial support is first applied, and then secondary lining construction is carried out.

[0003] The shallow buried tunnel of the subway adopts the system anchor (mortar anchor) + steel arch frame + mesh sprayed concrete support system, and the width of the excavation section of the single-hole tunnel is mostly between 6-8m (the height is 5-9m). The tunnel section size cannot meet the mechanized construction of the system anchor construction. Therefore, the system anchor of the urban subway tunnel is mostly drilled by manual + handheld equipment. For example, the number of mortar anchors set in each ring of the single-hole tunnel of the first section of the civil engineering of a certain rail transit line is 30-50 (the number varies depending on the surrounding rock and structural section), and the length of the anchor is mostly 3-6m. The YT28 pneumatic rock drill is used on the construction site. The drilling depth is about 1m per minute. The rock drill weighs 26kg. Due to the large number of holes, the heavy weight of the equipment, the frequent rotation of construction personnel during operation, and the difficulty of drilling positioning, this drilling auxiliary equipment is designed for this purpose. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a mortar anchor drilling auxiliary device, aiming to solve the problem of difficult positioning during drilling operations and the heavy weight of the rock drill making it difficult for operators to lift it, thereby greatly improving the drilling accuracy and making the workers' work more labor-saving.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model provides a mortar anchor drilling auxiliary device, including a base, an oblique support rod, a vertical support rod and a top support, wherein two oblique support rods are provided and are arranged on both sides of a vertical support rod, and the lower ends of the two oblique support rods and a vertical support rod are arranged in a line in the length direction of the base, and the upper ends of the two oblique support rods and a vertical support rod are supported on the top support, and the top support is a concave arc structure. The mortar anchor drilling auxiliary device manufactured by adopting the above scheme has good stability and reliability, can effectively help construction personnel to perform drilling operations, and improve work efficiency and quality.

[0007] Optionally, the diagonal braces and vertical braces are made of Φ25 threaded steel bars; the base is made of 22b I-beams; and the top support is cut from Φ100 steel pipes.

[0008] Optionally, the base and the diagonal braces and the vertical braces, and the top support and the diagonal braces and the vertical braces are all connected by welding.

[0009] Optionally, the vertical support rod is composed of an inner rod and a sleeve that are mutually fitted to form a telescopic structure, and the inner rod and the sleeve are provided with mutually corresponding transverse through holes for inserting pins; a fixed block is fixedly provided on both sides of the length direction of the base, and a slider is rotatably provided at the lower end of the two diagonal support rods, and a double-threaded rod and a guide rod arranged in parallel are provided between the two fixed blocks, and the guide rod passes through the two sliders, and the double-threaded rods are threadedly connected to the two sliders, and the threads on both sides of the double-threaded rods in the length direction are opposite. With the above scheme, by setting the fixed block, slider, double-threaded rod and guide rod on the base, in conjunction with the telescopic structure of the vertical support rod, the height of the entire auxiliary device can be adjusted, ensuring that the top support height matches the hole positions at different heights, thereby improving the applicability and flexibility of the auxiliary device.

[0010] Optionally, one end of the double-threaded rod extends out of the base, and an upper hand wheel is provided at the extended end thereof.

[0011] Optionally, a plurality of gripping spikes are provided at the bottom of the base.

[0012] The beneficial effects of the utility model are:

[0013] 1. The auxiliary device of the utility model can relatively stabilize the position of the rock drill by lifting the pneumatic rock drill, reduce the vibration of the drill rod, and thus ensure the accuracy of the drilling position and angle. In this way, the hole position deviation and angle deviation caused by vibration can be avoided, and the drilling accuracy can be improved.

[0014] 2. The auxiliary device of the utility model reduces the labor intensity of construction workers by lifting the pneumatic rock drill, allowing them to work more easily, reducing the frequency of personnel rotation and improving construction efficiency.

[0015] In general, this auxiliary device not only solves the jitter problem in the drilling process and improves the accuracy of drilling, but also reduces labor costs and improves construction efficiency, providing a more convenient and labor-saving solution for projects such as urban subway dark tunnels.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a front structural schematic diagram of a first embodiment of a mortar anchor drilling auxiliary device of the utility model;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 for Figure 1 Side view of

[0020] Figure 4 This is a front structural schematic diagram of a second embodiment of a mortar anchor drilling auxiliary device of the utility model;

[0021] Figure 5 for Figure 4 A top view of

[0022] Figure 6 for Figure 4 Side view of

[0023] Figure numerals: base 1, diagonal support rod 2, vertical support rod 3, top support 4, fixed block 5, slide block 6, double threaded rod 7, guide rod 8, hand wheel 9, gripping nail 10; inner rod 31, sleeve 32, pin 33. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] Embodiment 1

[0026] like Figure 1-3As shown, a mortar anchor drilling auxiliary device mentioned in the utility model includes a base 1, an oblique support rod 2, a vertical support rod 3 and a top support 4, wherein: the base 1 is used to fix the entire device, there are two oblique support rods 2, which are respectively arranged on both sides of a vertical support rod 3, so that the oblique support rod 2 and the vertical support rod 3 form a stable support structure, and the lower ends of the two oblique support rods 2 and a vertical support rod 3 are arranged in a line in the length direction of the base 1, ensuring the stability of the entire device, such as one oblique support rod 2 on each side is symmetrically arranged in the middle at 62°. The upper ends of the two oblique support rods 2 and a vertical support rod 3 are connected to the top support 4, and the top support 4 is a concave arc structure, which can not only better support the drill rod of the rock drill, but also has an opening on the top, which is convenient for the installation of the drill rod of the rock drill. This design can effectively support the rock drill, maintain a stable drilling position and angle, thereby improving the accuracy and precision of the drilling. At the same time, the device has a simple structure and is easy to operate, which can effectively reduce the labor intensity of the operator and make the drilling operation more efficient and convenient. By using this mortar anchor drilling auxiliary device, the positioning difficulties in drilling operations and the operational difficulties caused by the weight of the rock drill can be solved, the construction efficiency and quality can be improved, and the smooth progress of the tunnel project can be ensured.

[0027] In this embodiment, the diagonal brace 2 and the vertical brace 3 are made of Φ25 threaded steel; the base 1 is made of 22b I-beam; and the top support 4 is cut from a Φ100 steel pipe. Since the device has a simple structure, is easy to process, and is low in cost, the manufacturing process is relatively easy and economical and efficient. The operator can cut the steel into the required size and shape by a cutting machine according to the design requirements, and then use a welding machine to weld the components together, that is, the base 1 and the diagonal brace 2 and the vertical brace 3, and the top support 4 and the diagonal brace 2 and the vertical brace 3 are all welded together, so as to assemble a complete mortar anchor drilling auxiliary device.

[0028] The mortar anchor drilling auxiliary device produced by the above scheme has good stability and reliability, can effectively help construction workers to perform drilling operations, and improve work efficiency and quality. At the same time, the auxiliary equipment can be adjusted in size on site according to specific construction conditions by using local materials. It is flexible and adaptable. Its low cost also makes the device more competitive in practical applications, providing a simple and economical solution for urban subway tunnel construction.

[0029] Embodiment 2

[0030] like Figure 4-6As shown, the difference between the second embodiment and the first embodiment is that the vertical support rod 3 is composed of an inner rod 31 and a sleeve 32 which are mutually nested to form a telescopic structure, and the inner rod 31 and the sleeve 32 are both provided with transverse through holes corresponding to each other and used to penetrate the pin 33 to fix the relative length of the inner rod 31 and the sleeve 32; the upper end of the inner rod 31 away from the sleeve 32 is fixedly connected to the top support 4, and the lower end of the sleeve 32 away from the inner rod 31 is fixedly connected to the base 1; a fixing block 5 is fixedly provided on both sides of the length direction of the base 1, and a slider 6 is rotatably provided at the lower ends of the two diagonal support rods 2, and a double-threaded rod 7 and a guide rod 8 arranged in parallel are provided between the two fixing blocks 5, and the guide rod 8 passes through the two sliders 6 to guide the slider 6 to slide, and the double-threaded rod 7 is threadedly connected to the two sliders 6, and the threads on both sides of the double-threaded rod 7 in the length direction are opposite, so that the slider 6 can be synchronously driven to move by the rotation of the double-threaded rod 7, thereby adjusting the spacing between the two diagonal support rods 2.

[0031] By adopting the above scheme, the arrangement of the fixed block 5, the slider 6, the double-threaded rod 7 and the guide rod 8 on the base 1 makes the auxiliary device have more adjustment and flexibility. Through the synchronous adjustment of the double-threaded rod 7, the spacing between the two diagonal support rods 2 can be adjusted; at the same time, in conjunction with the telescopic structure of the vertical support rod 3, that is, the telescopic adjustment of the inner rod 31 and the sleeve 32, the height of the entire auxiliary device can be adjusted to adapt to holes at different heights. Such a design allows the height of the top support 4 to be adjusted as needed to adapt to holes at different heights. By adjusting the height of the top support, the stable support of the drill rod of the pneumatic rock drill at different positions can be ensured, thereby ensuring the accuracy and stability of the drilling. This flexible adjustment design can meet different construction needs, making the device more convenient and practical in actual applications.

[0032] In this embodiment, one end of the double-threaded rod 7 extends out of the base 1, and a hand wheel 9 is provided on the outer end thereof. Through the hand wheel 9, the operator can easily rotate the double-threaded rod 7, making the adjustment process smoother, reducing the consumption of manpower, and improving the convenience and efficiency of operation.

[0033] In addition, a plurality of gripping spikes 10 are provided at the bottom of the base 1 of the auxiliary device. The provision of the gripping spikes 10 can increase the friction between the auxiliary device and the ground, prevent the auxiliary device from sliding or tilting during operation, and maintain the overall stability of the auxiliary device. Especially during construction processes such as drilling, the device needs to withstand greater forces and vibrations, and effectively prevent the device from moving or shaking during use, thereby improving the reliability and practicality of the mortar anchor drilling auxiliary device.

[0034] When in use, during the drilling operation, the auxiliary device is placed at one-third of the distance between the pneumatic rock drill and the rock surface (close to the pneumatic rock drill), and fixed with the gripping nails 10 at the bottom of the base 1 of the auxiliary device, and then the drill rod is placed in the top support 4 at the top. After the operator aligns the hole position and starts the rock drill, the auxiliary device can stably support the drill rod, and only a small force is needed to support the drill rod. During the entire drilling process, the auxiliary device provides additional support and stability to help maintain the accuracy and stability of the drilling. Once the drilling is completed, the operator can move the auxiliary device to the next point and cycle for the next drilling operation. If the height of the top support 4 needs to be adjusted, the double threaded rod 7 is driven to rotate by the hand wheel 9 to synchronously adjust the spacing between the two diagonal support rods 2, and the guide rod 8 assists the movement of the slider 6 of the diagonal support rod 2, and cooperates with the telescopic inner rod 31 and sleeve 32 of the vertical support rod 3 to achieve the height adjustment of the entire auxiliary device. After adjustment, the height of the vertical support rod 3 is locked by the latch 33. This operation method can improve work efficiency, reduce the labor intensity of operators, and ensure the accuracy and stability of drilling. By using this auxiliary device, drilling operations become more convenient and stable, providing construction workers with better operating experience and protection. In general, by using this auxiliary device to support the drill rod during drilling operations, it can help operators complete drilling operations more easily and improve work efficiency and quality. This operation method is simple and practical, and helps to improve the efficiency and safety of drilling operations.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A mortar anchor drilling auxiliary device, characterized in that: The invention comprises a base (1), an oblique support rod (2), a vertical support rod (3) and a top support (4), wherein the oblique support rod (2) is provided in two pieces and is arranged on both sides of a vertical support rod (3), and the lower ends of the two oblique support rods (2) and the one vertical support rod (3) are arranged in a line in the length direction of the base (1), and the upper ends of the two oblique support rods (2) and the one vertical support rod (3) are folded and supported on the top support (4), and the top support (4) is a concave arc structure.

2. The mortar anchor drilling auxiliary device according to claim 1, characterized in that: The diagonal support rods (2) and the vertical support rods (3) are both made of Φ25 threaded steel; the base (1) is made of 22b I-beam; and the top support (4) is cut from a Φ100 steel pipe.

3. The mortar anchor drilling auxiliary device according to claim 1, characterized in that: The base (1) and the diagonal support rods (2) and the vertical support rods (3), and the top support (4) and the diagonal support rods (2) and the vertical support rods (3) are all connected by welding.

4. The mortar anchor drilling auxiliary device according to any one of claims 1 to 3, characterized in that: A plurality of ground-gripping spikes (10) are provided at the bottom of the base (1).

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