Connecting device for top beam and joist of support

Abstract

The utility model relates to the field of coal mine equipment, in particular to a support top beam and joist connecting device which comprises a top beam, a joist and a ring beam sleeve, the joist is located below the top beam, the joist and the top beam are in a perpendicular crossing state on the horizontal plane, a plurality of connecting blocks are fixedly installed at the bottom end of the top beam, and the ring beam sleeve is sleeved with the joist. A plurality of inserting grooves are formed in the two side walls of the joist, the ring beam sleeve is in a U shape and annularly sleeves the outer wall of the joist, the top end of the ring beam sleeve is connected with the connecting block through bolts and nuts, connecting holes corresponding to the inserting grooves are formed in the ring beam sleeve, and connecting rods are slidably installed in the connecting holes. And the connecting rod is inserted and embedded in the slot. The device has the effect of facilitating movement of the top beam.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine equipment, in particular to a support top beam and joist connecting device. BACKGROUND

[0002] At present, the coal mine support in the coal mine tunnel is composed of a top beam and a joist, the top beam is horizontally installed at the top end of the joist, the top beam and the joist are vertically crossed in the horizontal plane, and the top beam and the joist are both welded, when the interval between two adjacent top beams needs to be changed, the welding part of the original top beam and the joist needs to be separated, and then the top beam needs to be moved, but the welding part of the top beam and the joist is not easy to separate, causing the problem of inconvenient movement of the top beam. CONTENT OF THE UTILITY MODEL

[0003] In order to facilitate the movement of the top beam, the present application provides a support top beam and joist connecting device.

[0004] The support top beam and joist connecting device provided by the present application adopts the following technical scheme:

[0005] A support top beam and joist connecting device, comprising a top beam, a joist and a ring beam sleeve, the joist is located below the top beam, the joist and the top beam are vertically crossed in the horizontal plane, a plurality of connecting blocks are fixedly installed at the bottom end of the top beam, a plurality of insertion slots are formed in the two side walls of the joist, the ring beam sleeve is in the shape of U, the ring beam sleeve is sleeved on the outer wall of the joist, the top end of the ring beam sleeve is connected with the connecting blocks through bolts and nuts, a plurality of connecting holes corresponding to the insertion slots are formed in the ring beam sleeve, a connecting rod is slidably installed in the connecting holes, and the connecting rod is inserted into the insertion slots.

[0006] Optionally, a connecting groove is formed in the outer wall of the ring beam sleeve, the connecting groove is in communication with the connecting hole, a connecting plate and a reset spring are installed in the connecting groove, a T-shaped circular groove is formed in one end of the connecting plate close to the connecting rod, a T-shaped circular ring is rotatably installed in the T-shaped circular groove, the connecting rod is fixedly connected with the groove bottom of the T-shaped circular groove through the T-shaped circular ring, the reset spring is sleeved on the outer wall of the connecting rod, one end of the reset spring is fixedly connected with the groove bottom of the connecting groove, and the other end is fixedly connected with the T-shaped circular ring.

[0007] Optionally, the end of the connecting rod away from the connecting plate is in the shape of an inclined surface.

[0008] Optionally, a handle is installed at the end of the connecting plate away from the connecting rod.

[0009] Optionally, the insertion slots on the two side walls of the joist are alternately and spacedly distributed.

[0010] Optionally, the depth of the insertion slot is 1 / 4 of the width of the joist.

[0011] Optionally, the connecting plate is engraved with a scale mark corresponding to the direction of the inclined end of the connecting rod.

[0012] To sum up, the present application includes at least one of the following beneficial technical effects:

[0013] The top beam and the joist are connected together through the ring beam sleeve, and then the connecting rod is inserted into the slot of the joist, which limits the ring beam sleeve. When the top beam needs to be moved, the connecting rod is rotated by the connecting plate, so that the inclined end of the connecting rod moves towards the direction of the top beam, and then the top beam is moved, which is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of a support top beam and joist connecting device according to an embodiment of the present application.

[0015] Figure 2 is a schematic diagram of a ring beam sleeve of a support top beam and joist connecting device according to an embodiment of the present application.

[0016] Figure 3 is a partial schematic diagram of a ring beam sleeve of a support top beam and joist connecting device according to an embodiment of the present application.

[0017] Figure 4 is Figure 3 is an enlarged view of A in FIG.

[0018] Figure 5 is a sectional view of a joist of a support top beam and joist connecting device according to an embodiment of the present application.

[0019] Reference signs: 1, top beam; 11, connecting block; 2, joist; 21, slot; 3, ring beam sleeve; 31, connecting hole; 32, connecting slot; 4, connecting rod; 5, return spring; 6, connecting plate; 61, scale mark; 62, T-shaped circular groove; 63, T-shaped circular ring; 7, handle; 8, bolt; 9, nut. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be further described in detail.

[0021] The present application discloses a support top beam and joist connecting device.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides a kind of support roof beam and joist connecting device, including roof beam 1, joist 2 and ring beam sleeve 3, joist 2 is below roof beam 1, joist 2 and roof beam 1 are perpendicular intersection state in horizontal plane, multiple connecting blocks 11 are evenly welded and fixedly installed in the bottom end of roof beam 1, multiple slots 21 are opened in the two side walls of joist 2.Ring beam sleeve 3 is U-shaped, ring beam sleeve 3 is sleeved on the outer wall of joist 2, the top end of ring beam sleeve 3 is connected with connecting block 11 by bolt 8 nut 9, connecting hole 31 corresponding with slot 21 is opened in ring beam sleeve 3, connecting rod 4 is slidably installed in connecting hole 31, and connecting rod 4 is inserted into slot 21.

[0023] It needs to be known that the slots 21 on the two side walls of the joist 2 are alternately and spacedly distributed, so that the horizontal center lines of each slot 21 are not the same, which does not affect the carrying capacity of the joist 2. At the same time, the depth of the slot 21 is 1 / 4 of the width of the joist 2, which further does not affect the carrying capacity of the joist 2.

[0024] Connecting groove 32 is opened on the outer wall of ring beam sleeve 3, and connecting groove 32 is communicated with connecting hole 31, that is, connecting hole 31 is opened at the groove bottom of connecting groove 32, connecting plate 6 and reset spring 5 are installed in connecting groove 32, connecting plate 6 is located at the slot opening of connecting groove 32, T-shaped circular groove 62 is opened at one end of connecting plate 6 close to connecting rod 4, T-shaped circular ring 63 is rotatably installed in T-shaped circular groove 62, connecting rod 4 is fixedly connected with the groove bottom of T-shaped circular groove 62 by penetrating T-shaped circular ring 63, reset spring 5 is sleeved on the outer wall of connecting rod 4, one end of reset spring 5 is fixedly connected with the groove bottom of connecting groove 32, and the other end is fixedly connected with T-shaped circular ring 63. It needs to be known that one end of connecting rod 4 inserted into slot 21 is beveled.

[0025] When the staff needs to move the roof beam 1 forward or backward, the staff rotates the connecting plate 6, the connecting plate 6 drives the connecting rod 4 to rotate, so that the beveled end of the connecting rod 4 corresponds to the direction that wants to move, and then the roof beam 1 is moved, the slot wall of the slot 21 of the joist 2 will exert a pressure on the beveled end of the connecting rod 4 towards the outside of the slot 21, the beveled end of the connecting rod 4 slides towards the connecting hole 31 under the pressure, until the beveled end of the connecting rod 4 is completely slid into the connecting hole 31, the reset spring 5 is in a stretched state, the roof beam 1 continues to move forward or backward, until it reaches the slot opening of the next slot 21, the reset spring 5 resets, and drives the beveled end of the connecting rod 4 to be inserted into the next slot 21. It needs to be known that the reset spring 5 is provided to facilitate the automatic sliding of the connecting rod 4 into the slot 21, to achieve the effect of saving labor.

[0026] In order to facilitate the staff to rotate the connecting plate 6, the handle 7 is rotatably installed at one end of the connecting plate 6 away from the corresponding connecting rod 4.

[0027] In order to make the staff know the direction of the inclined end of the connecting rod 4, the connecting plate 6 is engraved with a scale mark 61 corresponding to the direction of the inclined end of the connecting rod 4.

[0028] The implementation principle of the connecting device for the support roof beam and the joist is as follows: the staff installs the ring beam sleeve 3 on the connecting block 11 through the bolt 8 and the nut 9, if the staff wants to move the roof beam 1 forward, rotates the handle 7, the handle 7 drives the connecting plate 6 to rotate, the connecting plate 6 drives the connecting rod 4 to rotate, until the scale mark 61 on the connecting plate 6 faces forward, at this time, the inclined end of the connecting rod 4 faces forward, and the roof beam 1 can be moved; if the staff wants to move the roof beam 1 backward, rotates the handle 7, the handle 7 drives the connecting plate 6 to rotate, the connecting plate 6 drives the connecting rod 4 to rotate, until the scale mark 61 on the connecting plate 6 faces backward, at this time, the inclined end of the connecting rod 4 faces backward, and the roof beam 1 can be moved.

[0029] The above are the preferred embodiments of the present application, and are not used to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A connection device for a support beam and a truss beam, characterized in that: The utility model relates to a roof beam, which comprises a roof beam (1), a support beam (2) and a ring beam sleeve (3), wherein the support beam (2) is arranged below the roof beam (1) and is perpendicular to the roof beam (1) in the horizontal plane, the bottom end of the roof beam (1) is fixedly provided with a plurality of connecting blocks (11), a plurality of insertion grooves (21) are formed in the two side walls of the support beam (2), the ring beam sleeve (3) is in the shape of a U, the ring beam sleeve (3) is sleeved on the outer wall of the support beam (2), the top end of the ring beam sleeve (3) is connected to the connecting blocks (11) through bolts (8) and nuts (9), a plurality of connecting holes (31) corresponding to the insertion grooves (21) are formed in the ring beam sleeve (3), and a connecting rod (4) is slidably arranged in the connecting holes (31) and inserted into the insertion grooves (21).

2. A bracing of joist connecting device as claimed in claim 1 wherein: A connecting groove (32) is formed in the outer wall of the ring beam sleeve (3) and is in communication with the connecting holes (31), a connecting plate (6) and a reset spring (5) are arranged in the connecting groove (32), a T-shaped circular groove (62) is formed in one end of the connecting plate (6) close to the connecting rod (4), a T-shaped circular ring (63) is rotatably arranged in the T-shaped circular groove (62), the connecting rod (4) is fixedly connected to the groove bottom of the T-shaped circular groove (62) through the T-shaped circular ring (63), the reset spring (5) is sleeved on the outer wall of the connecting rod (4), one end of the reset spring (5) is fixedly connected to the groove bottom of the connecting groove (32), and the other end of the reset spring (5) is fixedly connected to the T-shaped circular ring (63).

3. A bracing of joist connection as claimed in claim 2 wherein: The end of the connecting rod (4) away from the connecting plate (6) is in the shape of an inclined plane.

4. The bracing of joists and rafters connecting device according to claim 2, characterized in that: A handle (7) is arranged on the end of the connecting plate (6) away from the connecting rod (4).

5. The support post and joist connecting device according to claim 1, wherein: The insertion grooves (21) on the two side walls of the support beam (2) are alternately and spacedly arranged.

6. The support post and joist connecting device according to claim 1, wherein: The depth of the insertion grooves (21) is 1 / 4 of the width of the support beam (2).

7. The support post and joist connecting device according to claim 3, wherein: A scale mark (61) corresponding to the inclined end of the connecting rod (4) is engraved on the connecting plate (6).

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