Manual tapper

Abstract

The manual tapper comprises an outer shaft sleeve, a steering moving rod is installed in the outer shaft sleeve in an inserted mode, a center shaft is installed in the steering moving rod in an inserted mode, a clamping groove is formed in the lower portion of the outer arc face of the outer shaft sleeve, an adapter is installed at the bottom end of the center shaft in an inserted mode, and a limiting clamping groove is formed in the bottom end of the adapter. The variable diameter is matched with the clamping groove in an inserted mode, and the customized drill bit is inserted into the limiting clamping groove in an inserted mode. All the stages are matched to guarantee stable and efficient use of the customized drill bit, the stability of the outer shaft sleeve and the steering moving rod is determined through reinforcing walls outside the outer shaft sleeve and the steering moving rod, and smooth rotation of the center shaft is guaranteed through a bearing gland, a thrust ball bearing and a copper sleeve, so that the customized drill bit is used smoothly; the detachable adapter, the reducing device and the customized drill bit are arranged to be used for different pipelines, and it is guaranteed that the customized drill bit can adapt to different pipelines to work.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline hole opening, in particular to a manual hole opener. Background Art

[0002] As an economical and efficient energy source, gas has entered tens of millions of households in recent years. In general towns, a large number of gas pipelines are laid to facilitate the supply of gas to residents' homes. However, when a gas pipeline fails, in order to ensure the delivery of gas, the operator must deal with the faulty pipeline as soon as possible, first drill a hole in the gas pipeline, and then replace the faulty pipeline as soon as possible.

[0003] Since general hole openers are large, they are not convenient to carry and use. At the same time, the drill bits cannot be easily replaced according to different pipelines during the drilling process, which can easily cause accidents. In the actual drilling process, the strong vibration generated by the hole opener can easily cause the customized drill bit to shake, so a manual hole opener is now needed. Utility Model Content

[0004] The utility model aims to provide a manual hole opener, which solves the problems raised in the above-mentioned background technology through a detachable and replaceable customized drill bit and a tighter component fit.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manual hole opener, comprising an outer sleeve, a steering rod is plugged and installed inside the outer sleeve, a center shaft is plugged and installed inside the steering rod, a slot is provided at the lower part of the outer arc surface of the outer sleeve, an adapter is plugged and installed at the bottom end of the center shaft, and a limit slot is provided at the bottom end of the adapter;

[0006] It also includes a reducer for plugging and installing with the card slot and a customized drill bit for inserting and installing inside the limit card slot.

[0007] Preferably, a reinforcing wall is integrally formed on the upper portion of the outer arc surface of the outer sleeve, and a sleeve groove is provided inside the outer sleeve at a position corresponding to the reinforcing wall.

[0008] Preferably, the steering movable rod is installed in contact with the inner wall of the outer sleeve, and another set of reinforcing walls is integrally formed on the upper part of the outer arc surface of the steering movable rod. A limiting groove is opened inside the steering movable rod corresponding to the position of the reinforcing wall, and after the steering movable rod is inserted into the outer sleeve, the bottom end of the upper reinforcing wall of the steering movable rod is installed in contact with the top end surface of the outer sleeve, and a positioning inner groove is opened at the lower part of the inner arc surface of the steering movable rod.

[0009] Preferably, a group of inner grooves are respectively formed on the lower outer arc of the steering movable rod and the upper inner arc surface of the steering movable rod, and a group of first rubber O-rings are embedded and installed inside the inner grooves formed on the inner arc surface of the steering movable rod, and a second rubber O-ring is embedded and installed inside the inner grooves formed on the outer arc surface of the steering movable rod.

[0010] Preferably, a thrust ball bearing is sleeved and installed on the upper outer arc surface of the central shaft. After the central shaft is inserted into the steering movable rod, the outer arc surface of the thrust ball bearing fits into the inner wall of the limiting groove, and a bearing pressure cover is tightly installed on the top of the thrust ball bearing. The top of the central shaft extends from the center of the bearing pressure cover, and a handle is fixedly installed on the top of the central shaft.

[0011] Preferably, a copper sleeve is sleeved and installed on the lower part of the outer arc surface of the central shaft, and the outer arc surface of the copper sleeve is installed tightly against the inner wall of the positioning inner groove.

[0012] Preferably, the limiting slot provided at the bottom end of the adapter is consistent with the top insertion rod of the customized drill bit, and a tightening window is provided through the adapter at the position corresponding to the limiting slot.

[0013] Preferably, the reducer is a funnel-shaped structure as a whole, and the customized drill bit extends from the inside of the reducer.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The coordination between each level ensures that the installed custom drill bit can be used more stably. The coordination between each level ensures the stable and efficient use of the custom drill bit. The stability of the outer sleeve and the steering rod is ensured by the reinforced wall outside the outer sleeve and the steering rod. The bearing cover, thrust ball bearing and copper sleeve ensure the smooth rotation of the center shaft, so that the custom drill bit can be used smoothly.

[0016] 2. Through the detachable adapter, reducer and customized drill bit, it can be used for different pipelines to ensure that the customized drill bit can adapt to different pipelines, making the whole equipment more convenient to use, easier to carry and more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural view of the outer shaft sleeve of the utility model;

[0019] Figure 3 This is a structural view of the steering moving rod of the utility model;

[0020] Figure 4 This is a structural view of the central axis of the utility model;

[0021] Figure 5 This is a structural view of the bearing gland of the utility model;

[0022] Figure 6 This is a structural view of the copper sleeve of the utility model;

[0023] Figure 7 This is a structural view of the adapter of the utility model;

[0024] Figure 8 This is a disassembled diagram of the drill bit structure customized for this utility model;

[0025] Fig. 9 This is a view of the variable diameter structure of the utility model.

[0026] In the figure: 1. Center shaft; 2. Bearing cover; 3. Thrust ball bearing; 4. Steering lever; 5. First rubber O-ring; 6. Outer sleeve; 7. Copper sleeve; 8. Second rubber O-ring; 9. Adapter; 10. Handle; 11. Slot; 12. Reducer; 13. Custom drill bit. DETAILED DESCRIPTION

[0027] 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.

[0028] The utility model provides a manual hole opener, such as Figure 1-Figure 9 As shown, it includes an outer sleeve 6, a steering rod 4 is installed inside the outer sleeve 6, a center shaft 1 is installed inside the steering rod 4, a slot 11 is provided at the lower part of the outer arc surface of the outer sleeve 6, an adapter 9 is installed at the bottom end of the center shaft 1, and a limit slot is provided at the bottom end of the adapter 9; it also includes a reducer 12 installed in conjunction with the slot 11 and a customized drill bit 13 inserted and installed inside the limit slot.

[0029] A reinforcing wall is integrally formed on the upper part of the outer arc surface of the outer sleeve 6, and a sleeve groove is arranged inside the outer sleeve 6 at the position corresponding to the reinforcing wall. The reinforcing wall outside the outer sleeve 6 can provide a sufficient width for the sleeve groove, and can also ensure that the steering movable rod 4 is limited by cooperating with the outer reinforcing wall of the steering movable rod 4, thereby ensuring the stability of the steering movable rod 4 in use, and further ensuring the stability of the center shaft 1 during rotation.

[0030] The steering moving rod 4 is installed in contact with the inner wall of the outer sleeve 6, and another set of reinforcing walls is integrally formed on the upper part of the outer arc surface of the steering moving rod 4. A limiting groove is opened inside the steering moving rod 4 at the position corresponding to the reinforcing wall. After the steering moving rod 4 is inserted into the outer sleeve 6, the bottom end of the upper reinforcing wall of the steering moving rod 4 is installed in contact with the top surface of the outer sleeve 6. A positioning inner groove is opened at the lower part of the inner arc surface of the steering moving rod 4. The bottom end of the outer arc surface reinforcing wall of the steering moving rod 4 contacts with the top end of the outer sleeve 6 to ensure the stability of the connection between the steering moving rod 4 and the outer sleeve 6.

[0031] A group of inner grooves are respectively provided on the lower outer arc of the steering moving rod 4 and the upper inner arc surface of the steering moving rod 4, and a group of first rubber O-rings 5 ​​are embedded and installed inside the inner grooves provided on the inner arc surface of the steering moving rod 4, and a second rubber O-ring 8 is embedded and installed inside the inner grooves provided on the outer arc surface of the steering moving rod 4. The second rubber O-ring 8 is installed on the outer arc surface of the steering moving rod 4 to further ensure the stable connection between the steering moving rod 4 and the outer shaft sleeve 6, and the first rubber O-ring 5 inside the steering moving rod 4 can also ensure the stable connection between the steering moving rod 4 and the central shaft 1 to avoid the problem of shaking.

[0032] It is worth mentioning that a thrust ball bearing 3 is sleeved on the upper outer arc surface of the central shaft 1. After the central shaft 1 is inserted into the steering movable rod 4, the outer arc surface of the thrust ball bearing 3 fits into the inner wall of the limiting groove, and a bearing pressure cover 2 is tightly installed on the top of the thrust ball bearing 3. The top of the central shaft 1 extends out from the center of the bearing pressure cover 2, and a handle 10 is fixedly installed on the top of the central shaft 1. The thrust ball bearing 3 installed on the outside of the central shaft 1 ensures the rotation of the central shaft 1, and the pressed-in bearing pressure cover 2 can limit the use position of the central shaft 1 to ensure that the rotation of the central shaft 1 is more stable and efficient when the staff turns the handle 10.

[0033] Specifically, a copper sleeve 7 is installed in the lower part of the outer arc surface of the central shaft 1, and the outer arc surface of the copper sleeve 7 is installed tightly against the inner wall of the positioning inner groove. The copper sleeve 7 can further determine the use position of the central shaft 1 to avoid shaking of the central shaft 1 during rotation.

[0034] In addition, the limit slot opened at the bottom end of the adapter 9 is consistent with the top insertion rod of the customized drill bit 13. A tightening window is opened through the adapter 9 corresponding to the limit slot position. The limit slot structure is circular, and the top insertion rod of the reducer 12 is inserted into the inner wall of the limit slot. After it is fully inserted, the staff can tighten the internal bolts of the tightening window to ensure the stability of the customized drill bit 13.

[0035] Specifically, the reducer 12 is a funnel-shaped structure as a whole, and the customized drill bit 13 extends from the inside of the reducer 12. The funnel-shaped structure of the reducer 12 can further ensure the stable use of the customized drill bit 13, thereby ensuring that the customized drill bit 13 works stably and efficiently.

[0036] 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 manual hole opener, characterized in that: The invention comprises an outer sleeve (6), a steering rod (4) is inserted and installed inside the outer sleeve (6), a central shaft (1) is inserted and installed inside the steering rod (4), a slot (11) is provided at the lower part of the outer arc surface of the outer sleeve (6), an adapter (9) is inserted and installed at the bottom end of the central shaft (1), and a limit slot is provided at the bottom end of the adapter (9); It also includes a reducer (12) that is plugged and installed in cooperation with the card slot (11) and a customized drill bit (13) that is inserted and installed in the inner part of the limit card slot.

2. The manual hole opener according to claim 1, characterized in that: A reinforcement wall is integrally formed on the upper portion of the outer arc surface of the outer shaft sleeve (6), and a sleeve groove is provided inside the outer shaft sleeve (6) at a position corresponding to the reinforcement wall.

3. The manual hole opener according to claim 2, characterized in that: The steering movable rod (4) is mounted in close contact with the inner wall of the outer sleeve (6); another set of reinforcing walls is integrally formed on the upper part of the outer arc surface of the steering movable rod (4); a limiting groove is provided inside the steering movable rod (4) at a position corresponding to the reinforcing wall; and after the steering movable rod (4) is inserted into the inner part of the outer sleeve (6), the bottom end of the upper reinforcing wall of the steering movable rod (4) is mounted in close contact with the top end surface of the outer sleeve (6); and a positioning inner groove is provided at the lower part of the inner arc surface of the steering movable rod (4).

4. The manual hole opener according to claim 3, characterized in that: The lower outer arc of the steering movable rod (4) and the upper inner arc surface of the steering movable rod (4) are respectively provided with a group of inner grooves, and a group of first rubber O-rings (5) are embedded and installed in the inner grooves provided on the inner arc surface of the steering movable rod (4), and a second rubber O-ring (8) is embedded and installed in the inner grooves provided on the outer arc surface of the steering movable rod (4).

5. The manual hole opener according to claim 1, characterized in that: A thrust ball bearing (3) is sleeved and installed on the outer arc surface of the upper part of the central shaft (1); after the central shaft (1) is inserted into the interior of the steering movable rod (4), the outer arc surface of the thrust ball bearing (3) fits into the inner wall of the limiting groove, and a bearing pressure cover (2) is tightly installed at the top end of the thrust ball bearing (3); the top end of the central shaft (1) extends out from the center of the bearing pressure cover (2), and a handle (10) is fixedly installed at the top end of the central shaft (1).

6. The manual hole opener according to claim 1, characterized in that: A copper sleeve (7) is sleeved and installed at the lower part of the outer arc surface of the central shaft (1), and the outer arc surface of the copper sleeve (7) is installed tightly against the inner wall of the positioning inner groove.

7. The manual hole opener according to any one of claims 1 to 6, characterized in that: The limiting slot at the bottom end of the adapter (9) is consistent with the top insertion rod of the customized drill bit (13), and a tightening window is provided through the adapter (9) at the position corresponding to the limiting slot.

8. The manual hole opener according to claim 7, characterized in that: The reducer (12) is a funnel-shaped structure as a whole, and the customized drill bit (13) extends from the inside of the reducer (12).

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