Ejector rod structure

Abstract

The utility model discloses an ejector rod structure. Comprising a D-shaped rod; the connecting piece comprises a sleeve and a deformable unit, the sleeve is used for installing an electric tool support, the deformable unit is fixedly connected with the sleeve, and the D-shaped rod is sleeved with the deformable unit which is locked and positioned on the D-shaped rod through a fastener. According to the utility model, the D-shaped rod is matched with the deformable unit, the two parts of the deformable unit are contracted through the locking of the fastener so as to be tightly held on the D-shaped rod, and the D-shaped rod and the deformable unit are in surface-to-surface contact, so that the contact area is increased, the friction resistance between the two parts is improved, the locking effect is better, and the bolt operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tool auxiliary tools, in particular to a push rod structure. Background Art

[0002] In construction (including decoration construction, etc.), positioning tools are needed, which are specifically used for positioning power tools, such as hole-opening power tools.

[0003] The applicant previously applied for an electric tool positioning structure CN218050584U, which uses two relatively retractable square tube rods, and cooperates with an operating component to control the lifting and positioning of the inner tube. The square tube rod is inconvenient for installing the electric tool bracket. It is necessary to configure a square kit that matches its shape on the liftable inner tube, and then lock the electric tool bracket by means of bolts against the outer wall of the liftable inner tube. If the bolts are not tightened enough during locking, it is easy to cause the electric tool bracket to fall off, posing a safety hazard; if they are tightened too much, it is easy to cause irreversible damage to the outer wall of the liftable inner tube. Therefore, there are inconveniences in actual operation. For this reason, the applicant made further improvements. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a push rod structure, which adopts the cooperation of a D-shaped rod and a deformable unit. The deformable unit and the D-shaped rod adopt surface-to-surface contact to increase the contact area, thereby improving the friction resistance between each other, and the bolt operation is more convenient and can be fixed by locking.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A top rod structure, comprising

[0007] D-bar; and

[0008] A connecting piece, the connecting piece includes a sleeve for installing the electric tool bracket and a deformable unit fixedly connected to the sleeve, the deformable unit is sleeved on the D-shaped rod and is locked and positioned on the D-shaped rod by a fastener.

[0009] In the above solution, preferably, the sleeve and the deformable unit are integrally formed.

[0010] In the above scheme, preferably, the deformable unit includes a left semicircular portion and a right semicircular portion, and a gap is left between the outer end of the left semicircular portion and the outer end of the right semicircular portion.

[0011] In the above scheme, preferably, the outer end of the left semicircular portion includes a left extension wall, the outer end of the right semicircular portion includes a right extension wall, and the fastener is passed through the left extension wall and the right extension wall.

[0012] In the above scheme, preferably, one or more nuts are fixed on the left extension wall, and each of the nuts corresponds to the position of a first hole opened on the left extension wall; one or more second holes corresponding to the position of the first hole are opened on the right extension wall, and the fastener passes through the second hole, the first hole and is threadedly connected with the nut to lock the connecting member on the D-shaped rod.

[0013] In the above solution, preferably, the connecting piece is made of metal.

[0014] In the above solution, preferably, the D-shaped rod includes

[0015] A first D-shaped rod, the upper end of which is open and the interior of which is hollow; and

[0016] The second D-shaped rod is plugged into the first D-shaped rod and can move longitudinally along the inner wall of the first D-shaped rod. The connecting piece is assembled on the second D-shaped rod.

[0017] In the above scheme, preferably, a third D-shaped rod is fixed to the upper end of the second D-shaped rod, the outer diameter of the third D-shaped rod is smaller than the outer diameter of the second D-shaped rod, and an extension rod with an outer diameter matching the outer diameter of the second D-shaped rod is mounted on the third D-shaped rod.

[0018] In the above solution, preferably, the sleeve includes a mounting cavity with an open end, and the electric tool bracket is installed in the mounting cavity.

[0019] In the above solution, preferably, an electric tool is installed on the electric tool bracket.

[0020] The beneficial effects of the utility model are:

[0021] The utility model adopts the cooperation of the D-shaped rod and the deformable unit, and through the locking of the fastener, the two parts of the deformable unit are contracted to hold the D-shaped rod tightly, the two adopt surface-to-surface contact, the contact area is increased, the friction resistance between each other is improved, the locking effect is better, and the bolt operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the matching state of the D-shaped rod and the deformable unit of the utility model.

[0024] Figure 3This is a schematic diagram of the connecting piece of the utility model.

[0025] Figure 4 It is a top view schematic diagram of the D-shaped rod of the utility model. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0027] See also Figure 1-Figure 4 , a top rod structure, including a D-shaped rod and a connecting piece 1 installed on the D-shaped rod, the D-shaped rod is similar in shape to a D-shaped rod, specifically a cylindrical tube with a flat wall, the specific style can be referred to Figure 2 , Figure 4 as shown in .

[0028] In this embodiment, at least the liftable inner tube is a D-shaped rod, and to facilitate the coordination between the inner tube and the outer tube, the outer tube can also be a D-shaped rod. Specifically, the outer tube is a first D-shaped rod 2, which has an open upper end and a hollow interior, and the inner tube is a second D-shaped rod 3, which is plugged into the first D-shaped rod 2 and can move longitudinally along the inner wall of the first D-shaped rod 2, and the connecting piece 1 is assembled on the second D-shaped rod 3.

[0029] For the holes on the inner tube, the holes on the outer tube and the corresponding operating components, reference may be made to the patent document CN218050584U previously applied for by the applicant. The housing 4 on the operating component may be fixed to the flat wall of the first D-shaped rod.

[0030] In this embodiment, an extension rod may be installed on the upper end of the inner tube. Specifically, a third D-shaped rod 5 is fixed to the upper end of the second D-shaped rod 3. The outer diameter of the third D-shaped rod 5 is smaller than the outer diameter of the second D-shaped rod 3. Figure 2 The third D-shaped rod 5 is provided with an extension rod 6 whose outer diameter matches the outer diameter of the second D-shaped rod 3. Figure 1 As shown, the top view of the first D-shaped rod 2, the second D-shaped rod 3, and the third D-shaped rod 5 after being assembled is as shown in FIG. Figure 4 shown.

[0031] The connecting member 1 includes a sleeve 11 for mounting the electric tool bracket 7 and a deformable unit fixedly connected to the sleeve 11. As one option, the sleeve 11 and the deformable unit are integrally formed and the material may be metal.

[0032] The sleeve 11 includes a mounting cavity 111 with an opening at one end, and the mounting tube of the electric tool holder 7 is inserted into the mounting cavity 111. As one option, the shape of the mounting cavity 111 and the shape of the mounting tube of the electric tool holder 7 can both be cylindrical, and the insertion fit can be an interference fit or a through hole can be opened on the sleeve and the mounting tube, and a pin can be used to penetrate the positioning, etc.

[0033] The electric tool is installed on the electric tool bracket 7. The electric tool can move horizontally on the electric tool bracket 7 and perform punching operations after moving forward. Specifically, a frame body 71 can be slidably matched on the electric tool bracket 7. The electric tool is fixed on the frame body 71. A motor 72 is installed on the frame body 71. The output shaft of the motor 72 penetrates into the frame body 71 and is connected to a gear transmission. The gear is meshed with the rack at the bottom of the electric tool bracket 7, so that the electric tool can be controlled to move forward or backward by reversing the motor.

[0034] The deformable unit is mounted on the second D-shaped rod 3, and includes a left semicircular portion 12 and a right semicircular portion 13. The outer end of the left semicircular portion 12 includes a left extension wall 14, and the outer end of the right semicircular portion 13 includes a right extension wall 15. One or more nuts 16 are fixed on the left extension wall 14, and each nut 16 corresponds to the position of the first hole opened on the left extension wall 14. Figure 3 The figure shows one embodiment, in which the number of the first holes and the number of the nuts are both two. The right extension wall 13 is provided with one or more second holes corresponding to the positions of the first holes, and the fastener 17 passes through the second hole and the first hole and is threadedly connected with the nut 16 to lock and position the deformable unit on the second D-shaped rod 3.

[0035] When the fastener 17 is not locked, a gap is left between the outer end of the left semicircular portion 12 and the outer end of the right semicircular portion 13. Figure 3 As shown, at this time, the deformable unit is not tightly fitted to the outer wall of the second D-shaped rod 3, and it can move longitudinally on the second D-shaped rod 3; after the fastener 17 is locked, the inner wall of the deformable unit is tightly fitted to the outer wall of the second D-shaped rod 3, the two are in surface contact, the friction is large, the locking effect is good, and this form is more convenient to operate.

[0036] The deformable unit is formed by longitudinally opening openings through the upper and lower ends of a cylindrical tube, so that the two separated ends can be relatively tightened or stretched, that is, the distance between the two separated ends can be changed to form its deformable property.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A top rod structure, Features: include D-bar; as well as A connecting piece, the connecting piece includes a sleeve for installing the electric tool bracket and a deformable unit fixedly connected to the sleeve, the deformable unit is sleeved on the D-shaped rod and is locked and positioned on the D-shaped rod by a fastener.

2. A top rod structure according to claim 1, Features: The sleeve and the deformable unit are integrally formed.

3. A top rod structure according to claim 1, Features: The deformable unit comprises a left semicircular portion and a right semicircular portion, and a gap is left between the outer end of the left semicircular portion and the outer end of the right semicircular portion.

4. A top rod structure according to claim 3, Features: The outer end of the left semicircular part includes a left extension wall, the outer end of the right semicircular part includes a right extension wall, and the fastener is penetrated through the left extension wall and the right extension wall.

5. A top rod structure according to claim 4, Features: One or more nuts are fixed on the left extension wall, and each of the nuts corresponds to the position of a first hole opened on the left extension wall; one or more second holes corresponding to the position of the first hole are opened on the right extension wall, and the fastener passes through the second hole, the first hole and is threadedly connected with the nut to lock the connecting piece on the D-shaped rod.

6. A top rod structure according to claim 1, Features: The connecting piece is made of metal.

7. A top rod structure according to claim 1, Features: The D-shaped rod includes A first D-shaped rod, the upper end of which is open and the interior of which is hollow; and The second D-shaped rod is plugged into the first D-shaped rod and can move longitudinally along the inner wall of the first D-shaped rod. The connecting piece is assembled on the second D-shaped rod.

8. A top rod structure according to claim 7, Features: A third D-shaped rod is fixed to the upper end of the second D-shaped rod. The outer diameter of the third D-shaped rod is smaller than that of the second D-shaped rod. An extension rod with an outer diameter matching that of the second D-shaped rod is mounted on the third D-shaped rod.

9. A top rod structure according to claim 1, Features: The sleeve comprises a mounting cavity with an opening at one end, and the electric tool bracket is mounted in the mounting cavity.

10. A top rod structure according to claim 9, Features: An electric tool is installed on the electric tool bracket.

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