A hole-entering auxiliary winding and unwinding device for a delivery hose of a mixed emulsion explosive vehicle

Abstract

The utility model discloses a kind of mixed emulsion explosive truck medicine conveying hose hole auxiliary retraction device, solve mixed emulsion explosive truck medicine conveying need artificial to hold tube to lead hose wear and fold, low efficiency, big security risk and existing equipment are inconvenient to carry and the like problems, including the support pole frame of vertical supporting leg, the guide wheel of being equipped with guide slot by cross bar in the middle of support pole frame, hinged movable support leg on support pole frame upper end, locking mechanism and handle part;Movable support leg unfolds and support pole frame is triangular support, locking mechanism fixes its angle, guide wheel guides hose half-embedded rolling.The device can avoid hose friction folding, reduce artificial dependence, improve charging efficiency and blasting safety, and portable easy to store, can adapt to complex mine working conditions, prolong hose life, reduce cost.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for mining blasting, specifically to an auxiliary device for the insertion and retraction of the delivery hose of a mixed emulsion explosive vehicle. Background Technology

[0002] After the introduction of the mixed emulsion explosives truck, the equipment has demonstrated advantages that are difficult to match by manual loading in four core dimensions: loading efficiency, operational safety, loading quality, and environmental protection, which has greatly improved the basic level of mining loading operations.

[0003] Despite the equipment's overall excellent performance, a key limitation exists in the actual on-site loading process: the telescopic boom of the mixed emulsion explosive loading vehicle has an operating radius of only 2.5 meters, which is insufficient to cover the area directly above the boreholes on both sides of the loading vehicle. This limitation directly necessitates manual assistance in holding the delivery hose as it is inserted into the borehole for loading.

[0004] Manual assistance in pipe clamping not only failed to fully leverage the automation advantages of the equipment, but also led to the following three problems:

[0005] Reduced loading efficiency and impact on blasting results: When delivering explosives, the hose needs to be lowered to the bottom of the borehole. During the manual operation of raising and lowering the hose, it is easy for the hose to rub against the borehole wall and bend. Bending not only directly slows down the loading speed, but may also cause hose blockage or borehole wall collapse, further increasing the difficulty of loading and ultimately affecting the blasting results.

[0006] Shortening the service life of the infusion tubing: During the infusion process, the tubing needs to be in contact with the rough inner wall of the borehole for a long time, which can easily cause wear marks; long-term accumulated wear will directly shorten the service life of the tubing and increase the replacement cost of equipment consumables.

[0007] Increasing labor intensity and reducing safety and automation levels: Manual assistance in deploying and retracting hoses significantly increases the labor intensity of construction workers; at the same time, the uncertainty of manual operation not only reduces work efficiency, but also poses safety hazards such as personnel collisions and hose loss of control, resulting in a decrease in the overall automation level of the explosive loading operation.

[0008] Existing technology 202422024082.5 discloses an emulsion explosive delivery tube retraction device, which provides a vehicle-mounted delivery tube reel mechanism for retracting and extending the delivery tube. However, this solution is only applicable to vehicle use. In the field, there may be situations where the vehicle is still several meters away from the borehole. In such cases, manual handling of the tube is still required to cover the last meter or two. During this process, the delivery tube may inevitably fall to the ground, drag, or slide, which can cause wear and tear on the tube. Other guiding mechanisms are mostly bulky and complex, making them inconvenient to carry and install, resulting in low operational efficiency. If multiple devices are required to work together, it becomes even more inconvenient. Utility Model Content

[0009] To address the aforementioned problems, this utility model provides an auxiliary device for extending and retracting the delivery hose in a mixed emulsion explosive vehicle. This device effectively solves the problem of hose wall friction during manual extension and retraction, preventing hose bending that could cause blockage or hole wall collapse, thus improving blasting results. Simultaneously, it reduces reliance on manual assistance, enabling rapid extension and retraction of the delivery hose, increasing construction efficiency, and enhancing the safety of blasting operations.

[0010] Specifically, this utility model is implemented as follows: an auxiliary device for the insertion and retraction of a delivery hose for a mixed emulsion explosive vehicle, comprising: a support frame, including two vertically downward support legs; a guide wheel, mounted on a horizontal bar between the two support legs in the upper middle area of ​​the support frame, the guide wheel having a guide groove at its center, the guide wheel being used for the delivery hose to be semi-embedded in the guide groove and to rotate on the horizontal bar to guide the delivery hose's laying and movement; a movable support leg, hinged to the upper end of the support frame, capable of rotating and unfolding to form a triangular support structure relative to the support frame; and a locking mechanism, installed at the hinge between the movable support leg and the support frame, capable of locking and maintaining the unfolded angle of the movable support leg, and also capable of releasing the locked state, allowing the movable support leg to rotate back to its original position and retract.

[0011] Furthermore, the locking mechanism includes: a ratchet, fixedly installed at one end of the movable support leg, with the ratchet shaft rotatably mounted on the support frame; a locking lever, a lever-type swingable structure mounted on the support frame, with a ratchet tooth on the movable end that contacts the ratchet, the ratchet tooth engaging with the teeth on the ratchet to restrict the movement of the movable support leg in the unfolding direction; and a lifting spring, mounted on the support frame and connected to the other end of the locking lever, which normally lifts the locking lever, causing the movable end to press against the ratchet, and when pressed, the lifting spring retracts, causing the movable end to lift up.

[0012] Furthermore, the support frame also includes two diagonal braces, which are respectively connected to the top of the support leg. The other ends of the two diagonal braces intersect on the mounting base, and the ratchet is axially rotatably mounted in the mounting base.

[0013] Furthermore, a handle is installed on the top of the mounting base extending upwards. The handle includes a vertical rod and a handle. The bottom of the lifting spring is installed on the vertical rod. Mounting brackets located on both sides are installed on the vertical rod by bolts. The mounting brackets are connected by bolts passing through the rotation fulcrum of the locking rod to provide installation and fixation of the locking rod.

[0014] Furthermore, the movable support leg comprises a main rod and a telescopic rod, with the main rod located in the upper section and the telescopic rod in the lower section. The two are designed as separate structures. The telescopic rod can be inserted into the lower opening of the main rod, and the telescopic rod is provided with several pairs of holes on both sides. The lower end of the main rod is also provided with a corresponding pair of adjustment holes, which can be connected to the main rod and the telescopic rod by inserting a pin bolt into the adjustment holes and the holes and tightening it with a nut.

[0015] Furthermore, a bearing sleeve is installed in the middle of the crossbar, and the guide wheel is mounted on the bearing sleeve.

[0016] Furthermore, the upper section of the movable support leg is provided with an outwardly protruding curved section. The position and size of the curved section correspond to the position and size of the guide wheel, so that when the movable support leg is retracted and rotated to reset, the curved section can just avoid the guide wheel and be located in the guide groove of the guide wheel.

[0017] The working principle of this utility model is as follows: After the mixed emulsion explosive truck arrives at the site, one or more movable units of this device are set up in the last few meters of the area not covered by the truck's telescopic boom. These units are then stably placed above the borehole opening. The delivery hose is then manually placed onto the device's guide wheels. The truck-mounted delivery hose reel system is activated, and with the combined action of the reel and the device, the delivery hose is smoothly delivered to the appropriate position within the borehole. The guide wheels guide the hose, replacing direct manual contact and fundamentally solving problems such as friction, bending, and dragging caused by manual hose handling. Two vertically downward-pointing legs directly contact the ground, forming the initial support structure of the device and ensuring it will not tip over during operation. The movable support legs and the vertical legs of the support frame form a triangular support structure. Compared to a single vertical support, the triangular structure has stronger anti-tipping capabilities, ensuring the device remains stable even on uneven mine surfaces and guaranteeing precise alignment of the guide wheels with the borehole. The guide groove in the center of the guide wheel adopts a semi-embedded design, which can hold the drug delivery hose in the groove and force the hose to move along the direction of the guide groove, avoiding direct contact and friction with the borehole wall and the ground, thus reducing hose wear and dragging problems from the root. The guide wheel guide groove restricts the position of the hose, ensuring that the delivery tube is suspended after being output from the mixed emulsion explosive vehicle. After passing through the guide wheel, the guide wheel is mounted on the crossbar via a bearing sleeve, allowing for flexible rotation. The guide wheel rotates synchronously with the hose, transforming the sliding friction between the hose and the guide structure into rolling friction, significantly reducing resistance. This also prevents hose bending caused by manual pulling, thus preventing blockage or borehole wall collapse, and avoids direct hard friction from dragging on the ground. After being guided, the delivery tube can directly descend into the borehole. The movable support leg consists of a main rod and a telescopic rod, and its length can be adjusted via pin bolts. When the ground is uneven, adjusting the length of the telescopic rod keeps the entire device level, preventing hose deviation due to tilting, further improving adaptability. The relative height of the guide wheel can also be adjusted by the unfolding angle. Under normal conditions, the lifting spring lifts the locking rod, causing the ratchet of the locking rod to engage with the ratchet of the movable support leg, restricting the rotation of the movable support leg and ensuring the stability of the triangular support structure, preventing angular deviation due to vibration or external forces during operation. When the work is completed and the hose is retracted, the delivery hose is retrieved. The onboard delivery hose reel system initiates rotation, and the hose retracts quickly with the assistance of this device, allowing for rapid transition to the next loading operation. This device enables rapid retraction. Pressing the other end of the locking lever compresses the lifting spring, disengaging the ratchet from the ratchet wheel, allowing the movable support leg to rotate freely and return to its original position. Combined with the design of the guide wheels on the curved section, the device is smaller and easier to carry after retraction. The use of this device greatly simplifies the delivery hose retraction process, improves work efficiency, reduces manual labor intensity, and also enhances the safety of the loading operation.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) After the device is put into use, the vehicle-mounted drug delivery hose reel system works in conjunction with the device to effectively solve the problem of drug delivery hose reeling and unreeling, reduce the intensity of manual labor, and improve the efficiency and safety of drug loading. In addition, the device can also reduce the wear of drug delivery hoses, extend their service life, and further improve the overall economic benefits.

[0020] (2) The structural design of this device is both lightweight and simple, while ensuring its sturdiness and durability, and facilitating the smooth passage of the drug delivery hose. The support frame and movable support legs provide stable support for the entire device, while the plastic guide wheels ensure that the drug delivery hose will not get stuck or bend excessively during sliding. The extendable movable support legs can be adjusted in height according to the actual terrain, ensuring the stability and applicability of the device in different working environments. At the same time, no personnel are required to assist in the loading process. The retractable metal support legs are equipped with pawls and ratchet wheels at the joint with the bracket, which serve as a folding mechanism, making it easy to store and saving space. Attached Figure Description

[0021] Figure 1 A three-dimensional structural view of an auxiliary retraction and deployment device for the inlet port of a mixed emulsion explosive vehicle; Figure 2 A schematic diagram showing the rotation and unfolding of the movable support leg; Figure 3 A three-dimensional structural view of the storage state of an auxiliary retraction and deployment device for the inlet hole of a mixed emulsion explosive vehicle; Figure 4 A three-dimensional schematic diagram of the telescopic structure of the movable support leg; Figure 5 A perspective view of the usage state of an auxiliary retraction and extension device for the inlet hole of a mixed emulsion explosive vehicle; Figure 6 A side view of the structure of an auxiliary retraction and deployment device for the inlet port of a mixed emulsion explosive vehicle; Figure 7 A reference diagram showing the coordinated use of the auxiliary retraction and extension device for the inlet of the delivery hose of multiple vehicles carrying mixed emulsion explosives; Figure 8 This is a reference diagram showing the usage status of an auxiliary device for the insertion and retraction of a delivery hose in a mixed emulsion explosive vehicle.

[0022] Figure label:

[0023] 1—Support frame, 10—Handle, 11—Outrigger, 12—Horizontal bar, 13—Modible support leg, 131—Main rod, 132—Telescopic rod, 133—Hole, 134—Adjustment hole, 135—Pin bolt, 136—Bent section, 14—Ratchet, 15—Locking rod, 16—Lifting spring, 17—Diagonal brace, 18—Mounting base, 19—Vertical rod;

[0024] 2—Guide wheel, 21—Guide groove, 22—Bearing sleeve;

[0025] 3—Infusion tubing. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1-5 As shown, this utility model provides an auxiliary device for retracting and extending the inlet of the delivery hose in a mixed emulsion explosive vehicle. The actual operation steps are as follows:

[0029] Step 1: Device Deployment and Stability: After removing the device, first place the two vertical legs 11 of the support frame 1 on the ground next to the borehole as a basic support. Rotate the movable support leg 13, which is hinged to the upper end of the support frame 1, to rotate it outward and unfold it, forming a triangular support structure with the vertical legs 11 of the support frame 1. The triangular structure can greatly improve the overall stability of the device, prevent shaking during operation that could cause guide deviation, and ensure that the guide wheel 2 is directly above the borehole.

[0030] The angle of the movable support leg 13 is fixed by a locking mechanism: the ratchet 14 of the locking mechanism is fixed to the movable support leg 13, and the ratchet of the locking rod 15 will automatically lock the teeth of the ratchet 14 under the action of the lifting spring 16, limiting the rebound of the movable support leg 13. This can limit the ratchet from reversing and also provide resistance to limit the ratchet 14 from continuing to rotate. If the angle needs to be adjusted, press the other end of the locking rod 15 to compress the lifting spring 16, and the ratchet will disengage from the ratchet 14 to unlock. After adjustment, release to relock.

[0031] If the ground is uneven, or according to the height requirements of the guide wheel 2, the length of the telescopic rod 132 of the movable support leg 13 can be adjusted: pull out the pin bolt 135 at the connection between the main rod 131 and the telescopic rod 132, stretch or shorten the telescopic rod 132 to a suitable length, then insert the pin bolt 135 into the corresponding hole 133 and adjustment hole 134, and tighten the nut to ensure that the device is level and stable.

[0032] Step 2: Guide wheel 2 guides the delivery hose 3: First, lead the delivery hose 3 out from the drum of the mixed explosives vehicle and partially embed it into the guide groove 21 of the guide wheel 2. The guide groove 21 can limit the left and right deviation of the hose and prevent it from running off course and rubbing against the borehole wall or being dragged to the ground.

[0033] When the explosives truck begins to deliver explosives or retract the hose, the hose will cause the guide wheel 2 to rotate around the crossbar 12 (the bearing sleeve 22 in the middle of the crossbar 12 can reduce the rotational resistance of the guide wheel 2, making it smoother):

[0034] When applying the drug: the hose moves downward along the guide groove 21 (manual traction is required if necessary), and the guide wheel 2 rolls to guide it to be accurately aligned with the borehole entrance, without the need for manual clamping; the hose always moves along the groove, will not rub directly against the borehole wall, and will not bend due to improper manual operation, thus avoiding blockage or borehole wall collapse.

[0035] When retracting the hose: the hose retracts upward along the guide groove 21, and the guide wheel 2 also rolls to assist, reducing the friction between the hose and the ground and the hole wall, while avoiding hose wear or loss of control caused by manual pulling.

[0036] Step 3: Device Storage: After operation, the device can be quickly stored to meet on-site portability requirements. Press the locking lever 15 of the locking mechanism to unlock the fixation between the movable support leg 13 and the support frame 1, and rotate the movable support leg 13 inward to reset it. The curved section 136 of the upper part of the movable support leg 13 will precisely avoid the guide wheel 2 and embed itself in the guide groove 21 of the guide wheel 2, preventing the support leg from colliding with the guide wheel 2 during storage, while also making the overall structure more compact. Finally, the device can be directly carried to the next borehole through the handle at the top of the support frame 1, eliminating the need for complicated handling and solving the problem of the large size and inconvenience of existing equipment.

[0037] Preferably, the support frame 1 further includes two diagonal braces 17, which are respectively connected to the top of the support legs 11. The other ends of the two diagonal braces 17 intersect on the mounting base 18. The ratchet 14 is axially rotatably mounted in the mounting base 18. This structure allows the support legs 11 to be mutually stable and serves as the mounting point for the movable support leg 13 at the convergence point, forming a relative triangular fixed point. The mounting base 18 provides the mounting area for the ratchet 14, while the upper end of the diagonal braces 17 is a vertical bar 19 and a handle 10, which facilitates manual handling, storage, and movement, or hanging on the mixed emulsion explosive vehicle.

[0038] Example 2:

[0039] Based on Example 1, when the vehicle is still several meters away from the borehole, two sets of auxiliary loading and unloading devices for the mixed emulsion explosive vehicle delivery hose can be arranged between the borehole and the vehicle, forming a series layout. The manually assisted delivery hose passes through two sets of guide wheels 2 in sequence, avoiding the delivery hose from contacting the ground.

Claims

1. An auxiliary device for extending and retracting the inlet of the delivery hose in a mixed emulsion explosive vehicle, characterized in that... include: The support frame (1) includes two vertically downward support legs (11); The guide wheel (2) is installed in the upper part of the middle of the support frame (1) via a crossbar (12) installed horizontally between the two support legs (11). The guide wheel (2) has a guide groove (21) in the center. The guide wheel (2) is used to allow the drug delivery hose (3) to be semi-embedded in the guide groove (21) and to rotate on the crossbar (12) to guide the drug delivery hose (3) to be laid and moved. The movable support leg (13) is hinged to the upper end of the support frame (1) and can be rotated and unfolded to form a triangular support structure relative to the support frame (1); The locking mechanism is installed at the hinge between the movable support leg (13) and the support frame (1). It can lock and maintain the unfolding angle of the movable support leg (13), and can also release the locking state, so that the movable support leg (13) can rotate back to its original position and retract.

2. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 1, characterized in that, The locking mechanism includes: A ratchet (14) is fixedly installed at one end of the movable support leg (13), and the ratchet (14) shaft is rotatably mounted on the support frame (1); The locking rod (15) is mounted on the support frame (1) in a lever-type swingable structure. The movable end that contacts the ratchet (14) has ratchet teeth. The ratchet teeth can engage with the teeth on the ratchet (14) to limit the movement of the movable support leg (13) in the unfolding direction. The lifting spring (16) is installed on the support frame (1) and connected to the other end of the locking rod (15). Under normal conditions, it can lift the locking rod (15) so that the movable end presses against the ratchet (14). When pressed, the lifting spring (16) retracts and the movable end lifts up.

3. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 2, characterized in that, The support frame (1) also includes two diagonal braces (17), which are respectively connected to the top of the support leg (11). The other ends of the two diagonal braces (17) intersect on the mounting base (18), and the ratchet (14) is axially rotatably mounted in the mounting base (18).

4. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 3, characterized in that, The top of the mounting base (18) extends upward and is equipped with a handle, which includes a vertical rod (19) and a handle (10). The bottom of the lifting spring (16) is mounted on the vertical rod (19). Mounting brackets located on both sides are mounted on the vertical rod (19) by bolts. The mounting brackets are connected by bolts passing through the rotation fulcrum of the locking rod (15) to provide installation and fixation of the locking rod (15).

5. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 1, characterized in that, The movable support leg (13) consists of a main rod (131) and a telescopic rod (132). The main rod (131) is located in the upper section, and the telescopic rod (132) is located in the lower section. The two are designed as separate structures. The telescopic rod (132) can be inserted into the lower opening of the main rod (131). The telescopic rod (132) is provided with several pairs of holes (133) located on both sides. The lower end of the main rod (131) is also provided with a corresponding pair of adjustment holes (134). The adjustment holes (134) and holes (133) can be inserted by a pin bolt (135) and tightened with a nut to connect the main rod (131) and the telescopic rod (132).

6. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 3, characterized in that, A bearing sleeve (22) is installed in the middle of the crossbar (12), and the guide wheel (2) is installed on the bearing sleeve (22).

7. The auxiliary retraction and extension device for the inlet hole of the delivery hose of the mixed emulsion explosive vehicle according to claim 1, characterized in that, The upper section of the movable support leg (13) is provided with an outwardly protruding curved section (136). The position and size of the curved section (136) correspond to the position and size of the guide wheel (2), so that when the movable support leg (13) is retracted and rotated to reset, the curved section (136) can just avoid the guide wheel (2) and be located in the guide groove (21) of the guide wheel (2).

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